(j)

G c_0

0) for KS-3 1 1,5,&6

6 4/~90

~ 9/18/90

10/8/90

IOHN WAIHEE

IERNOR OF HAWAII

STATE OF HAWAII DEPARTMENT OF LAND AND NATURAL RESOURCES

Mr. William J. Teplow Field Manager Puna Geothermal Venture P.O. Box 1337 Hilo, Hawaii 96721-1337

Dear Mr. Teplow:

P. 0. BOX &21

HONOLULU, HAWAII 96809

OCT 8 1990

WILLIAM W. PATY, CHAIRPERSON

BOARO OF ~NO ANO NATURAl. RESOURCES

O~PUHFII

KEI!Il W. AIIU~ MANABU T AGOMORI

RUSSELL N. FUKUMOTO

AQUACULTURE DEVELOPMENT PROGRAM

-'OUATIC flF.SOURCE9 CONSERVATION AND

ENVIRONMENTAL AFF-'1R9 CONSERVATION AND

RESOURCES ENFORCEMENT CONVEYANCES FORESTRY AND WILDLIFE lAND MANAGEMENT STATE PARKS WATER AND LAND DEVELOPMENT

The Department of Land and Natural Resources hereby approves your request for modification of the well drilling programs for geothermal wells Kapoho State # 3, 4, 5, and 6.

With respect to your plans for directional drilling, please be advised that the production or injection interval (i.e. bottom hole location) of any well must be located more than 100 feet from the outer boundary of the parcel of land into which it is drilled. In addition, directional/deviation surveys shall be ftled with the Department for all wells directionally drilled.

We would like to thank you for the copy of your construction plans as submitted to the County of Hawaii and request that you keep us informed of the progress of your project.

DN:mh

Should you have any questions, please contact me at 548-7533.

U Ti\GOMORI Director

90 Sff' 2•1 ,'\ll: 00 September 18, 1990

,.Vi ;J <;I-: './/, E.R & Mr. Manabo T1'f.~.TI<{:l.hl)l?lm:ltW Director Department 0~ Lana ana Natural Resources P.O. Box 621 Honolulu, HI 96809

RE: Notification of modification of c'ri:l:!!g program, Puna Geothermal Venture.

Dear Mr. Tagomori:

:;-:,e "'GV drilling staff have made several modifications to the KS-3 production well drilling program since its submittal as part of the drilling permit application. These modifications are summarized as ·follows:

1. The maximum target depth of the well has been increased to 7,400' true vertical depth (TVD). This change was instituted after careful review of drilling records from KS-1 and KS-2. The review indicates that there is a production zone with relatively high permeability at a depth of 7,200' to 7,300'. By increasing the planned drilling depth, we insure that this zone will be intersected. The basic casing program is not affected by this change. Only the 7" slotted liner string will lengthened to accommodate the deeper completion.

2. The setting depth for the 20" casing string has been increased to 1200'. This is to insure that all major lost circulation zones are placed behind the 20'' casing. This will facilitate obtaining a good cement job on the 13-3/8" string.

3. The drill pad layout has been reversed with the reserve pit now placed along the north side of the pad. This was done to facilitate pipeline construction while drilling is taking place on the pad and to increase efficiency of the piping system.

4. The directional drilling will be started after the 9-5/8" casing has been installed instead of midway through the 12-1/4" drilling interval as previously planned. This change was made because the geologic target is more advantageously approached with a deeper kick-off point (KOP). Also, casing wear during directional drilling will be significantly reduced by moving the KOP to a point below the 9-5/8" casing shoe. This will insure ma,:imum casing integrity upon completion of the well.

PUNA GEOTHERMAL VENTURE CONSTRUCTION !n•n n~ ....... 11.1.7 l-TTTn llfiT.Tt\TT Oh7?1_1'J.1.7 •

The enclosed drilling program for KS-3 should also be considered as an update for production wells KS-4, KS-5, and KS-6 which will be drilled according to the same program. The directional course and bottom hole location for each of the four wells located on Well Pad E are shown in Figure 1 of the attached program.

If you have any questions regarding the attached program, please give me a call.

Sincerely, PUNA GEOTHERMAL VENTURE

i:~ ~4 ~££---------William J. 1,;;1<ow Field Manager

cc: Butch Clark Zvi Reiss Maurice Richard Terry Crowson

attachment: KS-3 Drilling Program

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• Puna Geothermal Venture Update: September 15, 1990

PUNA GEOTHERMA~ VENTURE -DRILLING PROGRAr.t- -

PRODUCTION_NELL KS~

WELL DATA:

-Location: Wellpa~ E (See Figure ~J

Datum: Approximately 650' above MSL

Project-ed Depth: 7 ,4.00 feet TVD -

Well Type: Develppment Wel-l

Objective: Fractured Basalt

Well-Completion: .See Figure· 4

GEOLOGY:

FORMATION DEPTH

Alluvium Surf-150'

Sub-aerial Basalt 150' - 1300'

·water Table 560-1 . - 600 I

Submarine Basalt 1300 1 -" TD

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LITHOLOGY

Alternating layers of silt, clay, and unsorted basalt gravel.

Dense basalt with alternating vent tubes. circulation 1000 1 •

layers of Severe lost

from 300' to

Depth of sea level.

Dense basalt with alternating layers and Volcanic ash. Lost circulation below 4300-' ;

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Puna Geothermal Venture Update: September 15, 1990

CONDUCTOR PI?c_E AND CELLAR:

Th.irtY- inch (30") A53 Schegule 40 -C.-375" wa1~1) Grade A orB "l't.ill b~ set -in a 36" hole that was dril-led--by a dry hole auger rig tO a depth of 50'- below ground level. ~he conductor is to be cemented in place with a Type I-I portland -Concrete cement placed down the backside of the 30" condu-ctor pipe. Order out 10 yds 3

-of ready-mix concrete (.57 W/C ratio, 3''- 4'' slump, 4%- 5% air, 1 "- maximum aggregate size)-.

Ari 18" rathole will be drilled to rig's dimensions by the same auger rig. See contractor's rig specificatio!fS for the rathole dimensions. ~Boot the rathole with a 18~ secction of 13-3/8" casing. ~ mousehole is not _required. -

Following the setting of the conductor-piper dig a 12 1 x 12' x 11' earthen-cellar:and construct a reinforced concrete cellar according to civil-contractor's design ah& specifications (Figure 2) •

DRILLING - 26" HOLE:

Rig up Parker #231 as shown in Figure 3. Following rig up of Parker-#231, weld-on 30" pitcher nipple or r&illiam 30" rotating head. Spttd in with 26" bit. Ant-icip_ate losing total r_eturns at 150' below surface.- Continue drilling ahead- on water,_· aerated mud or f9am withou~ returns. Reduce pump rate· by 50% or a rate.

-s-ufficient enough to clear annulus and flush away drill cuttings. Run mud sweeps on at least every connection. Drill ahead with caution noting torque and drag; pick up and check for fill every 10' to 15' or as often as hole conditions dictate. Drill to a depth of 650 1 •

At this depth rig up bailer and bail continuously or as required to get a representative ground water sample. Collect samples and send to lab for analysis. Have state witness sampling procedure. Notify state 24 hours prior to taking samples.

Resume drilling 26" hole on water, aerated mud, or· foam. Drill to-a depth of 1000' to 1200', the casing point for 20" casing. At casing point sweep hole until no further fill is encountered. Short trip to drill collars to check for fill.

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Puna Geothermal Venture Update: September 15, 1990

.SURFACE CASING:

Approximately 1200' of 20" 94~Ko5 BT§<C cas;ing is to be run and cemented in place. Float equip~nt ~ould-consist of. a single load carrying screw-in sleeve ~ment float shoe. Tack or strap weld-on th~ float shoe. Centralize the casing- wTth three cena<aliz~rs--= one in the middle- of --the--f-i-r_st joint,- one on 1:ne th.!_rd collar arid- one on the fitl!f-_collar·.::_- Run casing- while -

__ :.::._-filling on every second-joint. __ -

Set casing in slips. Make up screw-in tool on drill-pipe. Run in hole with drill pipe for-inner-string cement job. Screw into-­float shoe. Test cement lines to 1200 psi prior to cementing. Establish rate through inner string. Anticipate cementing without returns. Maximum cementing pressure 1200 psi.

Cement 20'' casing through drill pipe with 1900 sacks (301Q ft~ of type II-+ 40% silica flour + 2% calciu~·chloride.+ .65% CFR-3. Excess is-calculated at. 100%. Recipr<:>eate casing 10 1 - 15 1

through out job. Cut diSplacement 10 bbls short. Release from float shoe. Allow cement to U-tube inside of casing. Cement slu_rry should b~ mixed and pumped at a rate of 5 bpm. Trip out

- with inner string drill pipe leaving cement on top of float shoe. Hookup elevators to top of casing. Pull 80% of str_ing weight and hold.

Wait_on cement for 12 hours. Have at least 200 yds 3 of sand, gravel, and/or volcanic cinders.

Pick up and run 1" tubing down __ backside (jf 20" casing. Tag fill. Mix and pump type II cement + 40%-silica flour + 2% ·calcium chloride+ .65%-.CFR-3. Circulate to surface. Pul1 tubing and wash shield laying down. Wait on cement for 12 hours. Sho.uid the cement settle, top out with batched ready-mix poured down the backside of the 20" casing. Ready-mix can be accelerated with 2% by we_ight of calcium chloride. Wait on cement for 12 hours.

Release weight on casing.

BLdWOUT PREVENTION EQUIPMENT- 17 1/2" HOLE (Figure 5):

_Cut off casing and weld on 20" - 2M slip on RTJ- flange. Weld on ·two opposing 2" - 2M or 3" - 2M weld neck flanges for side outlet

below flange. ·Valve the outlets with a 2" x 6" standard nipple and a 2" x 2M ball valve or 3" - 2M RTJ gate valve.

Blowout prevention equipment to drill a 1_7 1/2_" hole should

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• Puna Geothermal Venture Update: September 15, 1990

consist of one 21-1/4"- 2M MSP.Hydri1 Type_ Annular Preventer. Nipple up annular preventer to 20" - iM flange. Run 2" or 3" diverter line from wing valve outlets-on casing _to choke manifold and then to reserve pit. Stake~d hobble lin~

- -Annular BOP_:to be tested prior tg~dri11ing out-the 20" shoe to a pressure of 600 psi. Hold test -for~3·o minu-tes. Notify

_ ~ppJ;:.opriate state- regula~ory agenc..ies 24-:hours prior to te~ting.-

Sho_uld the well at anytime begin t-o flow, the 2"/3" divert line =.should be qpened prior t·o closing in the. annular preve-nter. ·The w~ll should be allowed to flow to the pit until enough_weighted-mud can be· mixed to kill the flow. ·

The annular preventer should be function tested daily. Test­-should be noted in the ·IADC tour-report as well as in the morning report.

DRILLING 17 _1/2" HOLE: - -

-Drill out from underneath the 20" surface casing on pre-treated mud with a 17 1/2'' mill tooth bit and slick bottomhole assembly. Dull bit and tripfor .insert type bit and recommended bottomhole assembly. - ·

Should lost circulation persist. Loss interval(s) should be cemented. Mud sweeps with 40-50% (50 1g/bbl) of LCM may be attempted but should not be continued.if ~eturns are not regained after two sweeps·-· - ·

The 17 1/2" hole .is t; be drilled to a depth of 2200' where 13 3/8;, casing. is to ·run. At casing point, circulate bottoms up and short trip to the collars. Trip back to bottom and check for fill. Note torque and drag. Circulate bottoms_ up and trip out to run pipe.

INTERMEDIATE CASING:

Approximately 2200' of 13 3/8" 61# K55 NEW VAM casing is to be run and cemented in place in a single stage. The float equipment should consist of a cement guide shoe, a single shoe joint followed by a 1oad·carrvinq screw-in

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• Puna Geothermal Venture .Update: September 15, 1990

screw-in stinger on drill pipe. Run inner string drill pipe and screw into float collar .. Circulate casing as required for hole--conditioning. Full returns should be obtained before comniencin~;i the cement_ job. Pressure test cement lines to 2000 psi prior to cemerrtj.ng. ·Maximum cementing pressure 2000 psi. ~ - - ·

Cement-with 100 bbls_ of water followed by Q)1o- bb'Js of cac12 water, (2) 40 = -bbJs_of Super FJ.ush and (3) 10 bbls of water. Mix:and pump 1955 sacks {_3090 _

-'-ft ) of_type H cement + 40% silica flour + .~5% CFR=3. If losses are -~ encountered below the 20" casing shoe, it may be advisable to cement the 13

~ 3/8" string w,i.th a light weight spherlite cement siurry tailed by 200 sacks of type II slurry. Pump 60% excess. Cut cement short if cement returns are obtained at the surface. Reciprocate casing·3o' throughout job. Displace ceinent slurry with water. -Bump drill pipe plug before releasing from float collar. Cement slurry should be mixed and pumped at a rate of 5 - 6 bpm. -Trip out with inner string drill pipe. -Hookup' elevators to top of casing. Pull 80% of string weight and hold. Wait on cement for 12 hours. Release weight on cas_ibg.

BLOWOUT PREVENTION EQUIPMENT·- 12 1/4" HOLE (Figure 6):

Blowout prevention :equipment to drill a 12-1/4" hole should consist of 13 -5/8"- 3M x 13 5/8" --5M DSA, 13 5/8"- 5M DG ram preventers and a 13 5/8"- 5M Hydril annular preventer. (See Figure 6). Lay 2" kill line .. Test blind rams to 1000 psi. Make up 12 1/4" mill tooth bit and slick bottom hole assembly. Trip in to top of cement. Test pipe rams to 1000 psi. Close annular preventer and pressure test to 600 (as per regs) psi. Notify appropriate state regulatory agency 24 hours prior to testing.

Pipe rams-should be function tested daily and on trips. All BOP tests are to be recorded in the IADC tour report _and noted on morning report.

DRILLING 12 1/4" HOLE:

Pre-treat mud with soda ash prior to drilling out shoe joint. Drill out the shoe joint with a 12 1/4" mill tooth bit and slick bottomhole assembly. Conduct leak-off test by pressuring wellhead to 1250 psi with 8.8#/gal mud in hole (equivalent to 11#/gal cement column). Trip for bit change and recommended bottomhole assembly.

Continue drilling ahead on mud to casing point at 3900'. Should any losses be encountered while drilling, heal the loss zones as described in the 17 1/2" section of hole before drilling deeper. Previous wells drilled through this section have not reportE!d any_ mud loss.

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• Puna Geothermal Venture Update: September 15, 1990

PRODUCTION CASING:

Approximately 3900' of 9 5/8" 47# C90 NEW VAM-casing js-to be run and cemented in a single stage. Land casing-thre~to four feet off bottom. Float equipment for the 9 5/8" casing will c~ist of float sho~ and a single shoe joint followed_by a float collar. · - -

Threa_d lock the float equipment and the Qottom th):,ee joints. Centralize the _ __ ceasing as det-ermined by cementer's ma~imum stand-.off computer program . .::Fill

casing on every 5th joint. Pressure test-cement lines to 2200 psi~ Maximum· =cementing pro;.ssure limit is to be 2200 psi. -

- -

Close annular preventer to divert returns through 2" casing h_ead valve, if required to maintain cemen-t pUmp pressure. Circulate casing bottoms up. cement with 100 bbls water followed by (1)" 10 bbls of CAC12 , (2) 40 bbls of Super Flush and (3) 10 bbls of water spacer. Cement casing with 540 sacks

- (2020 f~) of type II cement + 40% silica flour + 50 lb/sk of spherulite + 4% gel_+ 1.25% CFR;;..3 + 1.5% HAL AD 22A. Excess is calculated at 60%. _ Do not over displace. Recl.procate casing 10' o.. 15' throughout job -if annular preventer is not cl9sed. Mix and pump.at a rate of 5-6 bpm. Displace with water. Hang casing in slips. After plug is bumped immediately :unbolt and raise BOPS at casing head flange. :Prain casing head and set 9 5/8" casing alignment bowl. Wait on cement for 12 hours. After WOG, cut off the 9 5/8" casing. Dress casing 8" above casing head flange with 27 1/2" chamfer. Nipple up 13 5/8" -3M x 10" - 3M Type S WKM Expansion Spool with packing sleeve.

In the event that loss of circulation is encountered while drilling the 12 1/4" hole or the formation leakoff pressure is below 1250 psi (see leak-off test above) the 9 5/8" casing will be run as a liner and ti"e back· according to the following procedure. - -

Pick-up 1950' 9 5/8" 4;1# C-90, NEW VAM with float shoe,- single shoe joint and ·float collar. - -

Thread lock float equipment and bottom three joints. Pick-up Hyflo 9 5/8" x 13 3/8" L-80 liner hanger with Brown type 6' extension, 9 5/8" setting sleeve and landing collar.

Pick-up 1980' of 5" drill pipe. Trip in hole and circulate liner with mud. Set liner hanger. Sting out of liner and sting back in. Circulate preflush as above. Cement with 790 ft3 type II cement + 40% silica flow & 50 lb/sk Spherillite + 4% gel + 1.25% CFR-3 + 1.5% HALAD-22. Excess is calculated at 30%.

Sting out of liner hanger •. Pull 1 stand up and reverse circulate excess cement out of hole. Wait on cement 8 hours. Run in hole with 12-1/4" tooth hit-and drill out cement to top of liner hanger. Pull out of hole and run in hole with 10.563'.' mHl and drill collars. Clean-out to top of liner hanger. Pressure test to 1000 psi.

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• Puna Geothermal Venture Update: September 15, 1990

Displace hole with air and foam. Pick-up 1970' 9 5/8", 47#, C-90, new VAM with float coUar 1 joint from bottom. St_ing into top~of lin-er hanger and open ports. Cement to surface with 790 ft3 :type II--~ement _+ -40% silica flour 2% gel + 0.65% CFR-3. Maintain cement weightQL>16.2.;:lb/gal. Excess is calculated at 30%. . ~

~

Displace with -water. After plug is bumped immediately unbolt and raise BOPs at ca§ing head flange. Drain casing heaC!._and set·_::- 9 5/8" casing alignment_

.. :bowl. W:ait on- cement- 12 hours. After I'/9C, cut off 9...5/8" casing. Dress casing abov:e casing head with -27 1/2-deg. chamfer. Nipple-up 13 5/8" - 3M x 10" =-3M ~typeS

WKM Expansion Spool with packing sleeve.

BLOWOUT PREVENTION EQUIPMENT 8 1/2" HOLE (Figure 7):

B_lowout prevention equipment to drill the 8 1/2" section of hole should co11sist of a 10" - 3M WKM gate valve, 10" - 3M x 12" - 5M DSA or cross-over spool, 1-2" - 5J.I'l'SG ram preventer, 1211

- 5M diver:t-er spool (banjo box), 1211 - 5M DG ram preventers, 12" - 5M annular preventer; 12" - 5M x 30" - 300 ANSI crossover spo~l followed by a 30" Williams r<Jtatinj1 head,

-Blank off 8" outlet oP, banjo box with 6" - 5M blind flange. Pressure test blind rams to 1000 psi. Make up 8 1/2"-mill tooth bit with slick bottomhole assembly and trip into top of cement. Test upper and lower set of pipe rams to 1000 psi. Next Close annular preventer and test to 600 psi. Notify appropr_iate .state regulatory agencies 24 hours prior to testing.

The annular preventer and pipe rams should be functioned tested daily. Function test.blind rams on trips. Note BOP tes"ts l.n the IADC tour report as well as in "the daily morning report. _ - . -

DRILLING 8 1/2" HOLE:

Drill out from underneath the 9 5/8" casing on water with an 8 1/2" mill tooth bit and slick bottomhole assembly. Drill to 4100' with mud before tripping for a mud motor and directional tools. Build hole angle at a rate of 2° /100' on a course direction that is TBA. The hole will be displaced 865' at a 7400' TVD.

Ream out the motor run with an 8 1/2" BHA that is packed with IBS's. After the proper amount of angle and direction has been obtained, trip for angle building or angle holding assembly as needed. Displace to storage tanks and continue drilling ahead on water. Losses can be combatted with LCM products.

Should differentia_l sticking occur, rig up the-air ·compressor-with the degasser to free the stuck string. _

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Puna Geothermal Venture . Update: September 15, 1990

. At 7400' TVD circulate out mud with fr.esh water. T_rip-out of hole and rig up injection test. If test is successf':ll, run production liner.

P~ODUCTION_!.INER:

Tr:ip in hole with-slick BHA and check for fill~If -hole is opened, run .-~- appr_oximat-ely 3792' of 7" 2g# Lao BT§!C casing slotted with 1/4" x 2" slq_ts on

24 row pattern. Run liner with cement..guide shoe on bottom. Make up casing ~ on 7 11 x 9 5/8 11 single slip cone type liner hanger.- No float- equipment or

centralizers are to be run.- Hang liner at 37ao•. Top three joints should be · blank (no slots). Release from hanger and trip out laying down: ·

If mud is in the hole, pick up 3 1/2" drill pipe and run to bottom. Displace hole with water. Trip out of hole laying down 3 1/2" pipe. Trip in with remainder of 5" dr1ll pipe. Trip out laying down.

Nipple dowri ·aoE and install final wellhead {Figure ·a).

MUD PROGRAM:

Mud System: Water

J7J,[:?" HpJ~

Mud_ System: Low solids non-dispersed. Mud up with 15- 20 lb/bb1 of bentonite and 0.5 1b/bbl of caustic. Lo-So1 can be used to extend the yield of bentonite while selectively flocculating low yield native solids.

Mud Weight: a.a - 9.0 ppg. Run solids control equipment

Viscosity: 3a - 42 sec/qt

Water Loss! 15 cc/30 sec

Total Hardness: Maintain hardness below 150 ppm with soda ash

· Filtrate: No Control

pH: Maintain pH of 9.5 _-: 10.5 _for H 2S -

Comments: Mud -losses may be encountered. below the casing shoe.

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Puna Geothermal Venture Update: septembe1· 15, 1990

12 1/4"_Hq],~

--M1id System:~

Mud Weight:

Losses be.l,ow 1300' are not anticipated. - ~ -

8.8 - 9::0 ppg. M<;!intain weight as low as possible W.th water and mechanical solids control equipment. "Run contractor's desander and desilter; Qump shale tanks-as required.

Viscosity: 38 - 42 sec/qt. -Maintain viscosity with gel and caustic. Drispac at a ratio_ of 8:1 may be _used to increase viscosity it needed. As mud-temperature increases drispac will become less effective.' Alcomer 120L, which is recommended, is an effective viscofier in the higher- temperature ranges.

Water Loss: 15 cc/30 sec or less. Strict water loss -control through tj1e basalt-is not required.- However, lenses of clay may be -encountered from tim~ to time. While drilling with a mud motor, a water loss below 15 cc/30 sec Is recommended.

Total Hardness: Keep hardness below 150 ppm with soda ash.

pH: 9.5 --10.5. Mainta-in with caustic soda

Comments: Loss of circulation is not anticipated through this interval of hole. Should mifior losses occur they cim be treat~d with ):,CM fiber products. For total loss of returns a cement squeeze is recom-mended.

8 112" Hole -·--··· ---------- ·--

Mud System: Low solids, non-dispersed.

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• Puna Geothermal Venture Update-: September 15, 1990

DEVIATION:

.·- - -INTERVAL MAXIMUM_-_ - -liAXIMUM D~GLEG MAXIMUM DOGLEG

DEVIATION.._ --

-- - -- ----- -- 0 1 ;;:- 5001 2001 - -~-1" ·- 1" /100,._

-

--5001

- J.OOO' 2501 - - 10 1':/1001 ---- 2" 1" /100' 10001

- 20001 250' -- --

2000' - 30001 30 1°/1001 2501 --

30001 - 40001 250' 4" 1" /1001

40001 - 7 400' . - 100' - 2001 As required by 4°/1001 -

- target -

KOP will be 150 feet below the 13 3/8" casing shoe. The bottomhole target along with the direc_tional-plan will be supplied before the well spuds.

-

-

Take advantage-of bit trips- to run a survey. -Report accurately the actual­instrument depth of the survey along with_:the corrected course direction.-

BOTTOMHOLE ASSEMBLY:

Holding Assembly:

26"-Bit Rubber Sleeve Stabilizer 1011 Monel Drill Collar Rubber Sleeves Stabilizer 2 --10" Drill Collars 10 - 8" Drill Collars

Holding Assembly:

17 1/2" Bit 17 1/2" Integral Bla_?.e Stabilizer (IBS)

or 17 1/2" 3-point Roller Reamer -1011 Monel Drill Collar

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Puna Geothermal Venture

17 1/2" Integral Blade Stabilizer . 1 - 10" Drill Collars

17 1/2" Integral-Blade Stabilizer:-:-10 - 8" Drill Collars ~

Holding Assembly:

12 1/4"_Bit 12 1/4" 3-point Roller Reamer 8" Monel Drill Collar 12 1/4" Integral Blade Stabilizer 11 - 8" Drill Collars 7 3/4" Drilling_ Jars 6 - Heavy Weight Pipe

.!t.1/?~' Ji'?..J..~ .

Building _Assembly: _8 1/2 " Bit _

• Update: Septembel' 15, 1990

8 1/2" 3-point.Roller Reamer {UG IBS may be more desirable depending upon arigle and course direction}

6 1/2" Monel Drill Collar 11 - 6 1/2" Drill Collars 7 3/4" Drilling Jars

-6 - Heavy Weight Pipe

-~ 11..?.~'-.!:!_c>~§!

Holding Assembly:

8 1/2" Bit 8 1/2" 3-point Roller Reamer 6~" Monel Drill Collar 8~" 3-point Roller Reamer 1 - 6~" Drill Collar

. 8~" Integral Blade Stabilizer 16 - 6~" Drill Collars 6 3/4" Drilling Jars 6- HeavyWeight Pipe

SAMPLES:

Collect dri.U cuttings as follows:

- 26" Hole every 30' .

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• Puna Geothermal Venture Updatei September 15, 1990

- 17 1/2" Hole every 30' - 12 1/4uHole every 10' - 8 1/2" Hole every 10'

_Formation_samplesare to be caugh!"_as-abo'{e or as-directed by Ormat __ · --Fepresenl:atixe_. _Samples to be collec;tedby mtld loggers for analysis,

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• Puna Geothermal Venture Update: September 15, 1990

1.

-2.

- 4.

6.

8.

9.

SUMMARY OF DRILLING PROQEDURE.

Con_&truct location. Move in dfyl:ioJ.~ digger a:nd drill conductor_h_gle. Set 50'-e-f_:iO" conductor pipe. Concrete'ltr with 10 yards of ready mix. Civil_.contractor to _9ig and construct cellar 121 x 121 x 11'. _

Move-in and rig up Parke:t_' #231; Spud in well with 26" bit. Drill to a depth of 1200'. Anticipate upon losing complete returns as shallow as 1501

•

At 650', rig up bailer and bail well until clean. Collect a representative sample of grourid wa,ter. State o-f Hawaii should witness sampling procedure. Notify -2_4 hours prior to sampling.

Resume drilling, Drill to a depth of 1200'.- Run 20" 94# K55 BT&C casfng. _Cement with 1900 sacks- (3010 ft 3 of Type II Hawaii cement+ 40% silica ; flour + 2% cac12 + .65% CFR-3. Cement calculated at 100% excess. woe. -

Cut off casing and weld on casing head flange. Nipple up 21~" annular= hydril. Test BOP to 600 psi.~

Drill out from underneath the 20" casing with a 17 1/2" bit. Drill to a depth of 22001

• Some mud losses ma~/occur from 1000' to 1300'. Combat losses witl). LCM products.

At 2200' l'Un 13 3/8" 61# K55 NEW VAM casing. Cement casing with 1955 .:sacks (3090 ft3/sk) of Type II portland + _40% silica fl_our + .65% CFR-3. woe

Cut off 13 3/8" casing and weld on casing head flange. Nipple up BOP stack. Test rams to 1000 psi and hydril to 500 psi.

Drill out from underneath the 13 3/8" casing to a depth of 3900'. Maintain hole as straight as possible. At 3900' prepare to run 9 5/8" casing.

10. Run 3900' of 9 5/8" 47# C90 NEW VAM casing. Cement with 540 sacks (2020 ft3/sk of Type II portland + 40% silica flour + 50 lb/sk of spherlite + 4% gel + 1.25% CFR-3 + HALAD 22A. WOC.

11. Nipple up BOP stack. Test rams to 1000 psi and annular hydril to 600 psi. Nipple up flow line, mud-gas separator and rotating head.

-12. Drill ahead in the 8~" hole with mud a de_pth of 4100'. At 4100', pick up

mud motor and directional tools.- Kick well off at 2" /100' toward_­bottomhole target. Displace hole 865' in a TBA_ course -direction to a

pgv\drlprog Page 13

• PUna Geothermal Venture Update: Septembe1· 15. 1990

depth of 74001 TVD. ·Drill to a total depth of ?4001 on water. Mud up if hole begins to get tight or develops drag. After doing directional work, cut mud back to clear water. Continue buflding angle with BHA and/or lock in angle with recommended::-BHA.

13.- __At 740~ displace--mud with water~n<! rurdnjectiorf test.

__ ..14. - Run 3792' of 7" 29# L60__BT&C slotted casing--liner. Hang liner off a1: - --3760'. · T?P three joints are to be left blank;-

= - 15. Pick up 3650' of 3~" drilling-pipe + 31!)0' of 5~" drilling PJ_pe. Run in

hole, clean out to BTM, circulate hole with clean water, and come out·­laying down drill pipe .

. 16. Lay down 5" drill pipe. If mud is in the hole pick up 3~" drill pipe. Trip to bottom. Displace any mud that .is in the hole.

17. Tear Ci_ut and move rig., Nipple up wellhe~d assembly.

pgv\drlprog Page 14

=

Puna Geothermal Venture

20" 94# K55 BT&C:

-13 3/8" 61# K55 NEW VAM:

9 5/8" 4 7# C90 NEW YAM:

• ~Update: September 15, 1990

CASING AND CEMENT SUMMARY

Surface ---:1200 1 ~.;:- ~ -~

301o.=-ft~ .(1900 sacks) -of Type II portland cement-* 40%_$lllca flour + 40% silica­flolir-+_2% CaC~ + .65% CFR-3

_Calculated Exce,ss: 100% -Slurry Weight - 15.7 Pj,g

~ SlUrry Yield - 1.58 ft /sk

Surface - 2200'

3090 ft3 (1955 sacks) of Type II portland cement + 4.0% si-lica flour + .65% CFR-3

Calculated Excess: 60% Slurry Weight "' 15.7 Pj,g ~ Slurry Yield - 1.58 ft /sk

Surface - 3900'

2020 ft3 (540 sacks) of Type II portland cement + 50 lb/sk of spherlite + 4% gel + 1.25% CFR-3 .. + t.5% HALAD - 22A

Calculated Excess: 60% Slurry Weight- 11 PPf! · Slurry Yield - 3.'12 ft /sk

7" 29# LSO BT&C Casing Liner 37801 - 74001 TVD

pgv\drlprog

slotted with 1/4" x 2" slots on 24 row pattern, top three joints blank.

Page 15

'I

I I '

EXPLANATION /

/,.' GEOTHERWJ.. LEASE BOUNCAAY

-$- P~OOUcnON WW. (PROPOS~ -+ PROOUcnON W£1.1. (EXlsnNG)

-+ INJECTION WEU. (PROPOSED)

0 ~00 1000 FEET I lall.llwl I '

SCA1£

PUNA _£~<?_'!!fER~_yt:NTURE

WELL FIELD LAYOUT I '

1----.,-:-Q.t'l't t/14/to

11'1' •• lD'I.QW jr,GURE No: )I

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--

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lrf CONDUCTOR t­s·rr

- I

PLAN

VERTICAL SECTION

3'-rl'

PUNA GEOTHERMAL VENTURE

PRODUCTION WELL CELLAR

IGURE NO. 2

' I

" . I 'I '

' ' I .11 I I

---1. I I . I I I

! I

I -------------------- 8471 28 N

------- , 9453:90

E 10 SEPi>RA;OR ON WELL p/>D --- ·- -----~ .4.---------------~-

' -----------I~ ~ , , o 18 1 I o

t : , 1 --~ -, --T-=.:_- ------pipE-CORRIDO-R - - : ...

! b 1 1 m ~ 14 23 I I 0 p .· I I ·~=I 171 1-1 ' 8.i .... ' ~ f ( ' . . . 1 100.00 75.00 -'i--f-r+l'-

'·o I KS-4

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0 •o,; . .. ,.. . 'I . . n g I~ I • ~ I 'I ldJ I 1 !ToM 1Us

~ N~~sr 8ouNo~flr . I " DB i I 00 DDi WELL PAD E

I I I .

I I ! ~ j I I L' I II ! , o:::::q ' It • 11 • leo ' 1----- --·----~-------~------------2~-~~ ~--- ... ·- ---

I 1'-~~o

' 1 470.0~

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-..1 I I

EQUIPMENT· LIST

ITEM HEIGHT (FT)

1. GEOLO'ciST lRAJLER.~' ..•••.•••..... H.O 2. DIRECTIONAL SERVICES,.......... 1 2.0 3. AIR SERVlCES ...................... 12.0 4, TOOL PUSHER ...••...•••.....•..... 12.0 5, DRJWNG SUPKRINTENOENT. .. . . . 1 4.0 6. MUD SERVlCE:S,,, .................. 12.0 7, MUD LOGGER.•., ................... 12.0 B. DRILL RIG ........................... 168.0 9. WATER TANK\ FUEl,. TANK ........ 20,0

10. SCR HOUSE ....................... 10.5 11. GENERATOR f1.. .................. 10.7 12. GENERATOR #2. ................... 10.7 13. MUO HOUSE ....... ' .... :............ 9.4 14. MUD PUMP ~1. ................... 10.5 15. MUD PUMP 2. .................... 10.5 16. MUD JANK 1 ... : .. !.............. 4.4 17. MUD TAN~ 2. .... .'............... 4.4 18, RESERVE PIT ....................... -10.0 19. PIPE RACKS (2)................... 6.7 20. CA1WALK. ........................... 4.4 21, A!R COt.IPRESSOR,I,,.,,; .. ., .... 20.0 22. FftAC TANKS (4) .................. 14.0 23. MUD COOLER ...................... 24.1 24. CAUSTIC TN-IK. .................... 14.0 25. OEGASSER ....... : ... . ... ..... . .. . . . 20.0 26. PERIMEfER FENCE................ 7.0

: ·~.m I !PUNA GEOTHER~ VEN!URE]

WELL PAD E I KS-3 RIG LAYOUT

rnL f>C't\tlt'M'.AO£ 1t£V. 1/13/to

I I I "'w. """"' I jFI~~E NO. 3

, I II

,, II

w --------~----.-,

CROUJiO SURFACE

CEUAR

1000'

~..1------- 3900'

8-1/:1' HOLE -------~--~-/

~UNA GEOTHERMAL VENTURE

PRODUCTION WELL CASING DESIGN

~J~·~r--------f"~~~--'~--~ In' w. 1tJ'I.DW FIGURE NO. 4

(

·-

-11------- ANNULAR BOP

20" CASING

PUNA GEOTHERMAL VENTURE

ftf'I'.Tt:P\Dfl'

20" BOP CONFIGURATION

REV. 1

FIGURE NO. 5

·.

\

-

- ~

--..._ -soJ10M Of 1!&fJ!I{f Be:.aJ.I 20~rf'- -

----- - _T

+ ROTA.llNC HrJD

,.. -SI'I<:ER SPO<X.

+ 45'

NIHLVR 90P

13-'5/ff SCHAFfER 5000#

-+ CANEROH lYPE V SOOOf ,.- DOUBLE CA.TE BOP WTflf PIPE .-HD BUNO 1WIS

+ ,.,.

+ , .. ~FlOWUNE

+ SINCL£ CA.TE BOP J:t' WITH ptp£ NtO BliND RAAIS

_j_ DSA .. GROUND I..£Va ---r ---- -- -- -- ---

33" "'""" SI'OOl

rr + l If 13-3/li" CASINC HQD ... l" VltJ..Vf ·

,..

+ PUNA_GEOTHERMAL VENTURE 13-3/8" BOP

, .. CONFIGURATION

1>-5/f t:IAll: 3/:U./to REV. 1 ±, .. CUT

ETOt.l OfC~ ---- --- 81 ... 'TlPt.t'll' FIGURE NO.~

=

+

+ + +

J ... +

-~- BOfTON.. Of ROTARY B(I.U 20'~----

{Slj. ~--1-------- , .. tOOf SWl CA1E

\.0) E;l(J>ANSION SPOOL

1>-J/S" CUTOIT

,., •. 1'tPlDW

9-5/8" BOP CONFIGURATION

REV. 1

FIGURE NO. 7

=

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PUNA ~EOTHERMAL VENTURE

PRODUCTION WELLHEAD CONFIGURATION

REV. 1

FlGURE NO. 8

JOHN WAIHEE

GOVERNOR OF HAWAII

STATE OF HAWAII DEPARTMENT OF LAND AND NATURAL RESOURCES

P. 0. BOX 621

HONOLULU. tiAWAII 96809

REF:WL-MH GEOTHERMAL WELL DRILLING PERMIT

Kapoho State 5

TO: Puna Geothermal Venture 101 Aupuni Street, Ste. 1014-B Hilo, HI 96720

WILLIAM W. PATY, CHAIRPERSON

BOARD OF LAND AND NATURAL RESOURCES

OEPUTlES

I<EIHI W. NIUE MANABU l AGO MOnt

RUSSELL N. FUKUMOTO

I'.OUACUL T\lRE DEVELOPMENT

PROGRAM AQUATIC RESOURCES CONSERVATION AND

ENVIRONMENTAL AFFAIRS CONSERVATION AND

R£SOIJRCES ENFORCEMENT CONVEYANCES fORESTRY AND WILDLIFE LAND MANAGEMENT

STATE PARKS WATER AND LAND DEVELOPMENT

Your application, dated April 6, 1990, for a permit to drill a geothermal well as follows, on lands located within the Kapoho Section of the Kilauea Lower East Rift Geothermal Resource Subzone and included in State of Hawaii, Department of Land and Natural Resources Mining Lease No. R-2 is approved:

Well Designation: Kapoho State 5 Location: TMK 1-4-01:02, Kapoho, Puna, Hawaii Leased to: Kapoho Land Partnership Subleased to: Puna Geothermal Venture Operator: AMOR VIII Corporation Ground Elevation: 620 ft.+ Total Depth: 7,000 feet (maximum)

You are hereby granted permission to drill the geothermal well described above and in your application in accordance with the Department's Administrative Rules, Chapter 13-183, and the following conditions:

(1) All work shall be performed in accordance with the permission and terms of the occupier of the land, the Drilling and Completion Procedures submitted with you application, the Department's Administrative Rules (Chapters 13-183 and 13-184), and all other applicable Federal, State, and County laws, ordinances, rules and regulations;

(2) The applicant, its successors and assigns, shall indemnify and hold the State of Hawaii harmless from and against any loss, liability, claim or demand for property damage, personal injury and death arising out of any act or omission of the applicant, assigns, officers, employees, contractors and agents under tlus permit or relating to or connected with the granting of tlus pemut;

•

GEOTHERMAL WELL DRILLING PERMIT Kapoho State 5 Page 2

(3) The applicant shall observe and comply with all valid requirements of County, State, and Federal authorities, and regulations pertaining to the lands and permittee's operations including, but not limited to, all water and air pollution control laws, and those relating to the environment;

( 4) The applicant shall secure the approval and issuance of a County Geothermal Resource Permit (GRP) from the Planning Commission prior to commencement of drilling activities;

(5) If there are any contemplated changes in the proposed drilling program, the applicant shall obtain the Chairperson's approval prior to the execution of any such contemplated changes of work;

(6) The applicant shall file with the Chairperson prior to the start of the permitted activity, a signed and completed certificate of liability insurance as required under the Department's Administrative Rules, Section 13-18>{35;

!? (7) The well shall be located more than 100 feet from the outer boundary of the parcel

of land on which the well is situated, or more than 100 feet from a public road, street, or highway dedicated prior to the commencement of drilling unless modified by the Chairperson upon request;

(8) When drilling has reached a depth of not more than 50 feet below sea level, the Department's representative shall be notified with reasonable time allowed for travel to the site, to witness the sampling of a representative groundwater sample and the measurement of the static water level. Applicant shall have the sample analyzed by an independent laboratory and the results submitted to the Department completion of the analysis; u;oYI

(9) All Blowout-Prevention Equipment (BOPE) and cemented casing strings, shall be pressure tested before commencing any other operations on the well. Test pressures shall not be less than 600 pounds per square inch nor greater than 1,500 pounds per square inch, and shall be applied for a period of thirty minutes.

(10) Prior to the start of drilling, applicant shall submit to the Chairperson the location of the bottomhole target and direction of the proposed deviation;

(11) The drilling permit shall be valid for a period of one year from the date of issuance;

. -·

GEOTHERMAL WELL DRILLING PERMIT Kapoho State 5 Page 3

•

(12) The applicant shall submit to the Chairperson, the results of the exploration, all drilling and testing records, date of completion, down-hole directional survey of the well, and a survey of the well location and elevation above mean sea level by a Hawaii licensed surveyor within six months after completion of the well;

(13) The applicant shall notify the Division of Water and Land Development, in writing, of the date of the start of work;

(14) During use of the well for testing, monitoring, and/or production purposes, the well and site shall be properly maintained until the well is plugged and abandoned in accordance with our Department's Administrative Rules, Chapter 13-183;

(15) The site shall be restored as near as possible to their original condition after operations are completed .

. JUN 13 1990

Date of Permit

cc: Land Board Members Hawaii County Planning Dept. DBED Department of Health OEQC

April 6, 1990 Reference No. 90127.011

Mr. William Paty Chairman Board of Land and Natural Resources Kalanimoku Building, Room 130 1151 Punchbowl street Honolulu, Hawaii 96813

Subject: Application for Permit to Drill Geothermal Well Kapoho State 5 - State Geothermal Mining Lease R-2

Dear Mr. Paty:

In accordance with the Department of Land and Natural Resources Administrative Rules, Title 13, Chapter 183-65, Puna Geothermal Venture (PGV) hereby submits the enclosed application for a permit to drill geothermal well Kapoho State 5. Also enclosed is our check number 176 in the amount of $100.00 for the filing fees for this application. Kapoho State 5 will be drilled from the proposed wellpad E of the PGV Project, as approved in the Plan of Operation on March 10, 1989 by the Board of Land and Natural Resources.

Your timely consideration and approval of this application would be greatly appreciated. Please do not hesitate to contact this office--. i'f you have any questions or desire any additional information regarding this application.

s}.~rely,~U~

-- MA: ~: ~ Richerd ~Reg~::~~evelopment Manager

Enclosures

PUNA GEOTHERMAL VENTURE

ru ,.._

0 101 Aupuni Street Suite 1 014-B, Hilo, Hawaii 96720 0 610 East Glendale Ave., Sparks, Nevada 89431-5811

• •

Telephone (808) 961-2184 Telephone (702) 356-9111

• •

Facsimile (808) 961-3531 Facsimile (702) 356-912~

0 0 0 0 "l

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!!)

WELL PAD A

~.08~ • Acres

(E~I~+inj loJel \ ,51+e.)

0 0 o· o• ,,

<() ., . "l .., "l

_e,

5

c.., . .c.

4

" 245" 48 - -e4.4.1o G..s· a..e· - 4-.50-00 1 {

e,:z3.ZI N \

..... A.LIU" 6.. ~.-------<'e •. J 245' 48' - c;."'4.IO "'"- .• • ,,. ......... =: I ~,. ~'" "'It> EASEMEIJ"T S-1 A12EA = 2.465 Acres ~ ·-"'- . . ~-~s . -·os'-1A4Z:4 'Z....:l/ • ..,.4 iiJIIJr-16) ------~'='-,'3·-- 'Z4~·~4-- z.e.'=---- -----~-----=-~~ __:j ----- .s.oG>

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{

e.471. -z.e N ~.4S3.~0 E. "''""AL\U" 6,

0 0 0 111

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WELL PAP E

~.345 Ac.re:s

C.T Z4' 470.00

PLAN 51-lOWING

0 0 ci 111

<) N . t' .n "'

EA5EMENT 5-I ANO V'-IELL PAD E

PUNA GEOT~ERMAL VENTURE PROJECT

BEING PORTION5 OF L. P. 5177 AND R. F. 44 ':J7~ L. C. A\1\J. e55':J, APANA 5 10 C. 1"'\ANAINA

t'\AFOHO, PUNA, HAINAI I

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APPLICATION FOR PERMIT TO DRILL PROPOSED GEOTHERMAL WELL

KAPOHO STATE 5 ON RESERVED LANDS, KAPOHO, PUNA, HAWAII

Complying with Department of Land and Natural Resources (DLNR) Administrative

Rule, Title 13, Chapter 183, Subchapter 65, Puna Geothermal Venture (PGV) herewith

makes application for Permit to Drill for approval by the Hawaii Board of Land and

Natural Resources.

1. Awlicant:

Puna Geothermal Venture 101 Aupuni Street Suite 1014-B Hilo, Hawaii 96720 (808)961-2184

Owner of Mining Rights:

Kapoho Land Partnership

Land Owner:

PUNA GEOTHERMAL VENTURE

By: 1 Maurice A. Richard

Hawaii Regional Development Manager Puna Geothermal Venture

Kapoho Land and Development Company, Limited

2. Proposed well designation: Kapoho State 5 (KS-5) off Wellpad E.

'

Application for Permit to Drill Kapoho State 5 April 6, 1990

3. The enclosed tax key map, Attachment I, designates the approximate location of

the drillsite for KS-5 off Wellpad E located on State Geothermal Mining Lease

R-2. The elevation at Wellpad E is approximately 620 feet above mean sea level.

A survey of the wellpad for the PGV project is enclosed as Attachment II.

4. The proposed PGV Project geothermal well KS-5 has been designed to maximize

the possibility of intersecting, below approximately 4,000 feet, near-vertical

fractures which are generally aligned along the axis of the Lower East Rift Zone

(LERZ) and which carry geothermal fluids for the purpose of providing

geothermal resources to power the PGV Project power plant, previously approved

in the Plan of Operation approved March 10, 1989, by the Board of Land and

Natural Resources.

5. A detailed Well Drilling and Completion Program, a Drillsite Plan, and a

Vertical Section of the Well for the KS-5 well are contained in Attachment III.

6. A multi-well drilling bond ($25 ,000) has previously been filed with the State of

Hawaii.

90129.011 2

Application for Permit to Drill Kapoho State 5 April 6, 1990

7. Puna Geothermal Venture agrees to perform such drilling as outlined in this

application and agrees to maintain the well in accordance with Title 13, Chapter

183, State of Hawaii, and all Federal and County geothermal regulations.

90129.011 3

PUNA GEOIIIERMAL VENlUicE DRILLING PHOGRI\M

PROUUCTillN WELl Kei--5

WELL 01\TA:

Location: Wellpad E (See Fiqure 1)

Datum: Approximately 6&0' above MSL

Projected Depth: 7,000 1PPt lVU

Well Type: Development Well

Objective: Fractured Bas.•lt

Well Completion: See Figure 4

GEOLOGY:

FORMATION

Alluvium Surf-1S0'

Sub-aerial Basalt 15~) I -- 1300 I

Watet· Table 560'- 600'

Submarine Basalt 1300' - TD

LllllOLOGY

Alt:et·rlatir·rg layct·~ ol silt. clay, a 11 d u n s o r· t e d b a '" ,:~ .I t gr-avel.

Oe11se basalt with 2d t e rna t j n g 1 a _y e r· s of vent lub~s. Sever·e lost ci r·culC~tiorr from 300 1 to 1000' .

Depth of sea level.

Oens0 basalt wit~l

alter·natit1~1 layers and volcar1ic .3sh. Lost cir·culatic'n below 4300 1

CONDUCTOR PIPE AND CELLAR:

Thirty inch (30") A53 Schedule 40 (.375" •.Jall) Gr·ade 11 or· B will be set iLl. a :36'' hole that: i,Jas dr·illed by a dr·y hole auqer· rig t~o a depth o·f 50' below grour1d level. The conductor· is to be cemented in place with a ·rype II por·tlar1d concrete cen1er1t placE~d

do 1.Jn the backside of the 30 11 conductor pipe. Order· out 10 yds~l

o f r e a d y- m i x c o n c r· e t e ( • S 7 l-J / C r· a t .i o 11 • 3 " - 4 " s 1 urn p ~ '1 ~- ·- S ~~;

air-, 1'1 maximum aggregate size).

An 18 '' rat h o 1 e •.J i 11 be d r i 11 o d to r· i g ' s dime n <.:, .i. on s h y the same auger· rig. See corrtr·actor's r·ig specifications for· the rathole dirnenf.:;ions. Boot the rathole ,_,Jit!l a 18' section of 13 3/B'' casir1g. A mouse~role is r1ot r·oquir·ed.

Following the settir1g o1= ti-JG co11ducto1· pipe. dig a 12' 11' earthen tellar ar1d construct a reinforced concrete

>< 12' /( cell at·

accor·ding to civil cont:1·actor 1 s Jasign and c.peci f ic,"'::tion'3 ( r:·iqu1·p 2 ) •

DRILLING - 26" HOLE:

Rig up Parker #231 as shown in Figure 3. Following rig up of P a 1· k e r t1 2 31 , ,...., e 1 d on :3 0 " pit c 11 e 1· n i p p l v o 1· L-J i 1 1 i am :3 0 '1 1~ o tat in g hefld. Spud in I.Jith 26 1

' bit. Anticipate .Losing total r·etu1ns at 150 1 bclo•,J su1face. Cont:inue dr·illi119 ahead on I,,Jatel~~ aer·atcd mud or foan1 witl1out 1etu1ns. Reduce pump 1ate by 50% or a 1atc sufficient er1ougl1 to cleat· annulus and flush away drill cuttir1gs. Run mud sweeps or1 at least eve1y contlection. 01·ill ahead with caution 11oting torque and dr·ag; pick up and cl1eck fo1· fill every 1{1' to 15 1 or as often as hole conditions dictate. Or·ill to a depth of 6S0'.

At this depth rig up bailer and bail continuously or as required to get a r·epresentative ground wate1· sample. Collect samples and send to lab for analysis. Have state witness sampling procedure. No t if y state 2 4 h o u I' s p ,. i o 1· to t akin q samples .

Resume drilling 26' 1 l1ole on water, aerated mud. or foam. Dr· ill to a depth of 1000' - casing point for 20 11 casing. At casing point sweep hole until no fut·ther fill is encountered. Short trip to drill collars to check for fill.

SURFACE CASING:

Approximately 1000' of 20" 94it K55 BT&C casing is to be run and cemented i11 place. Float equipment sl1ould consist of a single load ca1·rying screw-in sleeve cement float shoe. Tack or strap weld on the float shoe. Cent1·~lize the casing with three

pgv\drlprog Page ., '·

centralizers - or1e in the middle of the first joint, one or1 the third collar and one on the fifth collar. Run casing while filling 011 every second joint.

Set casih~ ir1 slips. Make up scr~w-ir1 tool orr drill pipe. Rur1 in hole wit!1 drill pipe for· ir1ner str·ir1g cement job. Scr·ow ir1to float shoe. Test cement lines to 1200 psi prior to cementing. Establish rate tl1rough ir1r1er str·irrq. Anticipate cemer1ting without returns. Maximum cerner1ting pressure 1200 psi.

Cement 2 0 11 cas i n g t h r· o ugh J r i .l 1 p i p e I,.J i t h 1 9 ~~ 0 <::,a c k s ( 3 01 0 1' t 3 ) of type I I + 4 0 ~t s i 1 i. c a f 1 o u r· + ;?_ :;-. calc i tt m c h l n r i de + . 6 S :t C F 11-3 . E~cess is calCLJlat0d at 100~. Recipr·ocate casing 10 1

- 15 1

throug~1 out job. Cut displacemer1t 10 bbls shor·t. Release from float shoe. Allo~1 c~rner1t to U-tLJbe ir1side o1' casir1g. Cement slurr·y should be mi;.-:ed and pumped at: a rate of 5 bpm. Tr·ip out witl1 itltlor· s~ring dr·ill pipe l8avir1g cement on top of float s!1oe. Hookup e l 8 vat or s to top o f c a·; in q . Pull 8 \3 ·~; o f s t r· j_ n q wei g h t and hold.

~J a i t on 9 ,. ave l ,

cement and/o1·

fot· 1.;~ hours. H.~ve

volcanic cinder·s. at least 200 ycis3 ot sa r1 d ,

Pick up and run 1 11 tubing down back'=~ide of 20 11 casing. Tag fill. Mix and pump type II cemer1t + 40% silica flour· + 2~ calcitJin chloride + .65% CFR-3. Circulate to SLirface. Pull tubing and wasl1 shield laying down. Wait 011 cement fo1· 12 hout·s. ShotJld the cement settle. top out with batched ready--mix poured down the b a c k s i d D o f t h e 2 0 II c a ~. i n g . R e a d y ·- m i x c a n b e a c c e l JJ r· a t: e d 1, •• 1 i t 11 2 <?,;;

by weight of calc~urn chloride. Wait on cement for 12 hours.

Release weigl1t 011 c_asi119.

B l 0 l~ 0 U T PREVENT I 0 N EQUIP I" EN T - 1 7 1 / 2 " H 0 L E ( F i 9 u ,. e 5 ) :

Cut off casing and weld on 20" - 2M slip on RTJ flange. Weld on t~.Jo opposing 2 11

- 2!··1 ot· 3 11 - 2M ~.oJeld neck flanges for side outlet

below flange. Valve the outlets with a 2 11 x 6 11 standard nipple and a 2 11 x 21··1 ball valve or 3 11

- 2~1 RTJ gate valve.

Blowout prevention equipment to dr·ill a 17 1/2" hole should consist of one 21-1/4 11

- 2N ~1SP Hydr·il Type Annular Preventer. Nip p l e up annul a r p rev en t e r· to 2 G " - 2 t1 flange ( see Fig u r· e 2 ) • Run 2 11 or 3 11 diverter~ line fr-om wing valve outlets on casing to choke manifold and then to reserve pit. Stake and hobble line.

Ann u 1 a r B 0 P to be tested p r· i o r· to d r i 11 i n g o u t the 2 0 11 shoe to a pressure of 600 psi. Hold test for 30 minutes. Notify appr·opriate state regulatory agencies 24 !1ours prior to testing.

Page 3

Should the •..Jell at anytime begin to flo~-J, t.he 2 11 /3 11 diver~t line should be opened prior to closing in the annular preventer. The well should be allowed to flow to the pit until enough weighted mud can ~~ mixed to kill the flow.

The annular pr·evertter· should be fu1·rction tested daily. l"est sl1ould be noted in the IAOC tour report as well as ir1 the morni11g r~epor·t.

DliiLLlNii 17 1/;'" HOLE:

Drill out from under·neath the 20 11

mud •~Jith a 17 1/2 11 mill tooth bit Dull bit and trip for insert type assE·rnbly.

sLtr·face casing on pt~e-tr·eated

ar1d slick bottoml1ole ass~rnbly.

bit artd r·ecommerlded bottornhole

Should lost circulatior1 per·sist. Loss irtterval(s) sttould be cemer1ted. Mud sweeps witl1 40-SOt (50 lbjbbl) of LCM may be atterrrpted but sl1ould not be continued if returr1s ar·e tlot r-egained after· two sweeps.

The 17 1/2" hole is to be dr~ill8d to a depth of 2200 1 t...•here 13 3/8 11 ca·;ing is to run. (\t casing point. circulate bottoms up and shor·t tr·ip to the collars. Trip back to bottom and check for fill. Note torque and dt·ag. Circulate bottoms up a11d tr·ip OLtt to run pipe.

INTERMEDIATE CASING:

A p p ,~ o x i m a t e 1 y 2 2 0 0 1 o 1' 1 3 3 / 8 11 6 1 U K 5 5 N E l·J VA ~1 c a: s i 11 g i s to b e

r·urt and cemer1ted in place itl a sir1gle stage. The float equipmer·tt should cor1sist of a cement guid9 shoe~ a single shoe joint followed by a load cart·yirlg screw-irl sleeve float collat·. l~eld

and strap the float equiprner1t and the bottom tt1ree joints. Centralize the casir1g witl1 tl1r·ee centralizer·s - one midway up tl1e shoe joirrt~ a second on the third collar ar1d a t~tird centralizer on tl1e fiftl1 collar. Fill casir1g on ever·y second joint.

Land casing one to three feet off bottom. Set casing in slips and mal-:e up scre• ... 1-in stinger· on dr·ill pipe. Run inner~ str~ing

drill pipe and screw into float collar. Circulate casing as required for hole conditioning. Full returr1s should be obtained before commer1cir1g the cement job. Pressure test cement lines to 2000 psi prior· to cemer1tit1g. Maximum cementir1g pressure 2000 psi.

Cement with 100 bbls of water followed by water, (2) ~0 bbls of super Flush and (3)

(1) 10 bbls of CaC12 10 bbls of water. Mix

pgv\drl.pr·og Page

and pump 1955 sacks (3090 ft3) of type II cement + 40t silica flour + .65% CFR-3. If losses are encountered below the 20'' casing sl1oe, it may be advisable to cement the 13 3/8'' str·ing with a light weight spherlite cement slurry tailed by 200 sacks of type fi slur·r·y. Pump 60% excess. Cut cen1ent short if cement retur·ns are obtainad at tt1e sur·face. Reciprocate casir1g 30' thr·oughout job. Displace cement slurr·y with water. Bump dr·ill pipe plug before releasing ·fr·orn float collar·. Cemer1t slurry should be n1ixed and pump~d at a r·ate of 5 - 6 bpm. Tr·ip out wittr inner· string drill pipe. Hoo~up elo•;ator·s to top of casing. Pull GO% of string weigl1t ar1d hold. Wait on C9mer1t for· 12 l1ours. Release weight on casirtg.

B L 0 1-J 0 U T PRE'/ EN T I 0 H E QUI P 1·1 EN T -- 1 2 1 / 4 " H 0 L E ( F i g u ,. 9 G ) :

G l ow o u t p t' e v C' n t i o n e q u i p m c n t to d r .i_ l 1 a 1 2- 1 / ~'I '' h o 1 e s 11 o u 1 d consist of 13_ 5/8'' -31•1 ;-:: 13 5/8'' - 51•1 OSA, 13 5/:3'' - ~ .... t·1 OG ram preventer·s and a 13 5/8''- 5t'1 l{ydr·il c•nnulat· pr·Gv0ntc>r·. (See

r= i g u r· 8 3 ) . L a y 2 '' k i 1 l 1 in e • T e c. t b l 5. n d ,. a rn ·:; 1.: o 1 0 e• 0 psi • t·1 ,-:-~ k 8

up 1 2 1 / 4 '' rn i 11 tooth b i t and "-~ 1 i c k bot torn 11 o l e ass em b l y . T r· j_ p itl to top of ccmor1t. Test ~~ipe ~-~rnc to 1000 psi. Clos0 annulat· prc\•ertter ar1d pr·essure test to GOO (as p~t· regs) psi. Notify appt·opr·iate state r·egulator·y agency 24 l1our·s pr·iat· to tastir-lCJ.

Pipe r·ams sttould be functio11 tested tests at·e to be l"ecor·ded i11 tl1e IAI)C morning rep or· t.

DRILLING 12 1/4" HOLE:

d"ily tour·

and on r· e p o r· t

t:J-ip·;. All and noted on

Pre-treat mud with soda ash prior to drilling out shoe joint.

BUP

0 r i 11 out.: t 1·1 e shoe j o in t ' .. J i 1.: h a 1 2 1 / 4 '' m i 11 toot: h b i 1.: .~u1 d s-. l i c k bottomhole assembly. Conduct leak-off test by pr·essur·ing wellhead to 1250 psi with 8.81/gal mud in hole (equivalent to 11#/gal cement column) Trip for· bit change and r·ecommended bottomhole assembly.

Continue drilling ahead on mud to casing point at 3900', Should any losses be encoUiltel-ed wl1ile drilling, l1eal the loss zones as described in the 17 1/2" section of hole before drilling deeper-. P1·evious wells drilled thr·ougl1 this section l1ave not r·epor·ted any mud loss.

PRODUCTION CASING:

Approximately 3900' of 9 5/8" 47# C90 NEI·J VAt-1 casing is to be run and cemented in a single stage. Land casing tht·ee to four feet off bottom. Float equipment for· the 9 5/8'' casing will consist

p g v \ d ,- l p ,- 0 g PagC' 5

of float shoe ar1d a single shoe joint followed by a float collar·.

Thread lock the float equipmer-rt and the bottom three joints. Centr·aliz~ tl1e casing as determined by cemer1ter·'s maximum stand­off computer program. Fill casing on ever·y 5th joint. Pr·essure test cement lines to 2000 psi. Maxirnum cementing pr·essur·e limit is to be 2200 psi.

ClosE: annular· pre\/enter to divert returns through 2" casing head val v c , i f r· e qui r· c· d to 111 a i n t a i n cement pump p r· e s sure . C i r· c u l a t e casing bottoms up. Cern~:>r.lt 1..Jittr 100 bbls t....l.:lter· follo 1..Jed by (1) 10 bbls of CAC12 (2) ~0 bbls of Super· Flush •nd (3) 10 bbls of w~tcr spacor·. Cernorrt casing with 540 sacks (2020 ft3) of type II cemer1t + 40t silica 1 lorJr + 50 lb/sk o·j' sphcr·LJlite + 4% gel ~-

1.25% CFR-3 + 1.5% HALAO 22A. Excess is calculated at 60%. Do not over displace. :~ecipr·ocatc casir·rg 10 1

·- lS' throLrgi1out job if arrr1ul~r prcventer· is r1ol closed. Mix and pump at a rat0 of S - 6 b p m • D i s p 1 a c e ~~-' i t. h 1 • .J a t e r . I~ a n q c a s .i.. n g i n s 1 i p ~. . {'\ f t c r· plug is burnped immediately unbolt ar1d raise BOPS at casing head flange. Drain casing head a1rd set 9 S/B 11 ca·:;ing alignmer1t bo~.,1l.

t.J a i t on c em en t f o r 1 2 h o u r· s . Aft::. c r· l·J 0 C , cut of ·f t h c· 9 .r_) /3 ' 1

c a ~. i n g . 0 r· e :~ s c a s i n g 8 ' 1 a b o './ e c a s i n g h e a d f 1 a n g e 1 • ..' j t h 2 7 1 I .--:' c h a rn "f e r· • t~ i p p l e up 1 3 5 I r: 11

- 3 1··1 r: 1 0 " - 3 ~1 Type S [ .. J K 1·1 Ex pans ian Spool with packing slec•;e.

In the event that loss of circulatiorr is encountered wt1ilG d r· i 11 in g the 1 2 1 1 4 11 h o 1 c or· the f o r· mat .l on leak off p r· t?. s s u r· (:: i ~-; below 1250 psi (see leak-ofi~ test above) the 9 5/fl 1

' casing will be r·un as a liner· and tie back accor·ding to tile follo1.-Jing p r o c e d u r ~ .

P i c k ·- u p 1 9 5 0 1 9 5 / 8 II 4 7 H C - 9 0 • N E L·J VA 1•1 I..J i t 11 f l o a t s h o e , s i n g l e

shoe joint and float collar.

Thread lock float Hyflo 9 .5/13" X 13

equipmer1t and bottom tl1r·ee joints. 3 /8 " L- 3 G 1 in G· ,. hang G· r· I.,.J i t h 13 r· o '.J n

extension. 9 5/8 11 setting sleeve and landing collar.

Picf.-.;-up type 6'

Pick-up 1980' of 5" drill pipe. Trip in holC:' and cir-culate liner with mud. Set liner hanger. Sting out of liner ar1d sting back in cir·culate preflusl1 as above. Cement with 790 ft3 type II cemer1t + 40% silica flow & 50 lb/sk Spl1erulite -~ 4% gel + 1-25% CFR-3 + 1.5% fiALAD-22. Excess is calculated at 30%.

Sting out of liner· hanger. excess cement out of l1ole.

Pull 1 stand up and reverse cir·culate Wait 011 ccmer1t 8 hours.

Run in hole with 8 7/8" mill and drill collar·s. of liner hanger. Pressur·e test to 1000 psi.

Clean-out to top

Displace hole with air and foam. C-90, new VAM with float collar·

Pick-up 1970' 9 5/8", 471!, 1 joi11t ft·om bottom. Sting into

p 9 '/ \ d r· l p r· 0 <] Page (i

top of line,- hanger and open ports. Cement to suJ-face r . .Jitll 790 ft3 type II cement + 40% silica flour + 50Kisk Sperulite + 4% gel

+ 1.25% CFR-3 + 1.5% HALAD-22. Excess is calculated at 30%.

Displace ~ith water. After plug is bumped immediately unbolt and ,-a i s e B 0 P s at casing head f 1 an g e . 0 r· a i n c a-:. i n 9 head i'lll d -:. e t 9 5 /8 '' cas in •;1 a 1 i q n men t bow 1 . (,..J a i t on cern en t 1 ?. h o u r s . After l·J 0 C , cut. off 9 S I 8 '' casing . D ,. e ·::, ~-~ casing .J b o '-./ e cas i n g h :2 ad u i t h

27 112 deg. chamfet·. Nipple-up 13 518"- 3t1 :< 10" 3t·1 typeS

WKM ExpallSiOil Spool with pac~:i119 slee'le.

B L 0 l-J 0 ll T P ~~ E 'lENT I 0 N E Q IJ I P t1 EtH 8 1 I 2" H 0 L E ( F i q u u' 7 ) :

BlOi,JOUt p1·cvention equipment to d1·ill tl1c 8 1/2'' ·::.Gction of hole s h o u 1 d consiSt of a 10 " -- 3 N t-H: I~ gat:.:- ,_,a 1 '.' e , 1 0 " -- 3 N ;< 1 2 " - 5 t~ 0 S (\ o ,. c 1· o •:. s--o v e r ·::: p o o 1 , l 2 " - S t-1 ~3 G t" ."1m p ,. c: '/en t e r , 1 2 " ~ 51·1 d i v o r· t e r· s p o o 1 ( b a n j o b o x } ~ 1 :.· " - 5 1"\ D G ,- am p r- E"·.' e n t e r s • 1 2 " - 5- t'l

ann u 1 a r p 1· e 'I enter ~ 1 2 11 - 5 t·1 :< 3 G " - 3 0 0 r-d~ S I cross o \' e 1· s p o a 1

f 0 11 0 !_.,) e cl by a 3 0 !I l-J i 11 i .3m:;. 1- 0 t a t i. n g h f'! cc1 d ( <:~ e '2 Fig u r· e I~ ) •

Blank off 8'' outlet on banjo box • .. Jit:h 8'' -- 51·1 blind flang~!.

P r· e s s u r· e t e s~ t b 1 in d rams to 1 0 n 0 psi . t··l a Y. c· up 3 1 I 2 '' m i ll tooth bit with slick bottoml1ol8 assembly and tr·ip itlto top of cernent. Test upper and lower s~t of pipe ran1s to 1000 psi. Next close an11Ula1· p1·cvcntcr and test to 600 psi. t1otify appr·opt·iate state regulator·y ager1cies 2~ hoLJrs prior· to testing.

The atltlular pr·eve11ter· ar1d pipe r·ams should be ftJnctiotled tested daily. Function blind t·ams on tr·ips. Note BOP tests in the IADC tour r· e p o r· t as •..; e 1 l as i n t h <:: d a i l y m o r· n in g rep o r· t .

D R I L L I t< G 8 1 I 2 " H 0 L E :

Drill out 1=rom underneath the 9 5/8'' casing on l_.)ater· with an 8 1 I 2 " rn i 11 too t h b i 1: and s 1 i c k b o t tom h o 1 e ass em b 1 y . 0 r· i 1 1 to 4100' with mud before tripping for a mLJd n1otor and directional tools. Build hole angle at a r-ate of 2 /1C'I0' on a cou1·se di1·ection that is TBA. The l1ola will be displaced 865' at a 7000' T'JD.

Ream out the motor· run with an 8 112'' Bl~f1 that is packed t...rith lBS's. After tl1e pt·opct· amount of ar1glc ar1d dir·ectiotl has been obtained, trip for angle building or angle holding assembly as needed. Displace to storage tanks and coJ1ti11Ue dt·illing ahead on water. Losses can be combated with LCM products.

Should differential st.icl~ing occut·. t·ig up the air compressor with the degas s e r to f t· e e the stuck s t r· in g .

p 9 v \ d ,. 1 p ,. 0 g I

At 7000' TDV circulate out mud witl1 fresl1 water·. Tr·ip -out a·f hole and rig up injection test. If test is successful. run production lir1er.

PRODUCTION LINER:

Trip in hole with slick BHA and check for fill. If hole is opened~ run appt·o:-:irnatcly :3220' of 7'' 29H Le0 BT&C casing slotted •.,J i t h 1 /2 " :< 2 " s 1 o t s on an 1 8 p e r r· o 1 ..... • p a t t e ,. n . Run l in e r •...J i t h cement guide ~hoe on bottom. t'L::kc up casing on 7" >< 9 5/8" single slip cone type lir1or· l1~nger. No flo~t equipment or cent r· a .l i :: e r· ·:, d 1· e to b? r· u n . H n n q l inc 1· at 3 7 r:; 0 ' . lop t.: h r e e joints should be blank (no slots). He lea•:;<:! fr·onr hang9t" and tr·ip out laying do•~.on.

If mud bottom. 3 1./2" laying

i s i n t 11 e h o l e , p i c k u p 3 1 j 2 " d r i 11 p .i. p c-- a n d r· u n to 0 i £, p 1 ace h o 1 o 1,._~ i t 11 ~.J ...,-, t. c r . T r· i p out •J ( h o .l o J. a y 5. n g do 1.,..1 11

pipe. Tt·ip in •.,.Jith remainder· of 5'' dr·ill pipe. Trip out down.

Nipple down BOP and install final wellhead (Figut·e 8).

r·1UD PI10GR(<~1:

26" Hole

Mud System:

17 1/2" Hole

Mud System:

Mud l.Jeight:

Viscosity:

Water Loss:

Total Hardness:

Filtrate:

pH:

p g v \ d ,- l p ,. 0 g

Water

Low solids non-dispersed. 20 lb/bbl of ber1tonite at1d

t·1ud up with 15 -0.5 lb/bbl of

caustic. Lo-Sol c3n be used to extend the yield of bentonite while selectively flocculating low yield native solids.

8.8 - 9.0 ppg. Run solids' cotltt·ol equipment

38 - 42 sec/qt

1S cc/30 ·:;ec

Maintain hardness below 150 ppm with soda ash

No Control

Maintairt pH of 9.5 - 10.5 for H2S

PagC' 0 L'

Comments:

12 1/4" Hole

1·1ud System:

Mud Weight:

Viscosity:

Water Loss:

Total Hardness:

pH:

Comments:

..§.__1_[2 11 Hole

~1ud System:

pgv\d.-lpr·og

Mud losses may be encountered below the casir1g shoe. Losses below 1300' are not anticipated.

Low solids non-dispersed

8.8 - 9.0 ppg. Mair1tair1 weigl1t as low as possible with water and mechanical solids contr-ol equipn1er1t. Run cotltr·actor·'s desar1der and desilter. Dump s~1ale tanks as required.

38 -- 42 sec/qt. Mair1tair1 viscosity with gel and caustic. Ot·ispac at a ratio of 8:1 may be used to incr·ease viscosity if needed. As mud temperature ir·rcreases drispac will become less effective. Alcomer· 120L~ w!1ict1 is recommended, is an effective viscofier in tt1e l1igher· temper·atur·e r·anges.

15 cc/30 sec or less. Str·ict water· loss contr·ol thr·ougl1 tl1o basalt is r1ot r·equired. ~iowever·, lenses of clay rnay be errcourrtcred from time to time. Wl1ile dr·illir1g with a mud nrotor·. a water loss below 15 cc/30 sec is recommended.

Keep har·dness below 150 ppm with soda ash.

9.5 - 10.5. Maintair1 with caustic soda

Loss circulation is not anticipated thr-ougll this interval of l1ole. Should minor· losses occur tl1e can best be treated with LCM fibet· prodLrcts. For­total loss of returns a cement squeeze is recommended .

Low solids, non-dispersed.

Page 9

DEVIATION:

INTERVf;l ..

0' - 500' 500'- 1000'

1000' 2000'

2000 I 3000 I

3000' - 4000'

4000' 7000'

MAXH1Ut1 D EVI AT I 0 I~

200' 250'

250'

250' 250'

100' -- 200'

MAXH1U11 DOGLEG MAXIMUM DOGLEG

1 1 /100'

1 1 /100'

2 1 /100'

3 1 /1 !21 (.) I

•1 1 /100'

II·; r· equi ,. <:!d by 4 /100' target

KOP (,.Jill be two hundt·ed feet bGlou the: 1:3 3/8" casing ·:;iloc. The bottomhole ta1·get along with the directional plan will be supplied before the well spuds.

Take advar1tage of bit trips to r·un a survey. Repot·t accu1·ately the actual ir1strun1e11t deptl1 o·f tl1e sur·vey along witt1 the corrected cou1·se direction.

BOTTOMiiOLE ASSEMBLY:

26" Hole

Holding Assembly:

26" Sit Rubber· Sleeves Stabilizer 1 0 '' t>1 one 1 0 r· i 11 Co 11 a r· Rubber Sleeves Stabilizer 2 - 1 0 " D r i 11 C o 1 1 a ,. s 10 - 8" Drill Collars

17 1/?" Hole

Holding Assembly:

17 1/2" Sit 17 1/2" Integral Blade Stabilizer (IBS)

or 17 1/2" 3-point Roller· Reamer 1 0 " r1 o n e 1 D ,. i 1 1 C o 1 l a r·

pgv\dl'lpr·og Page .10

17 1/2 11 Integral Blade Stabilizer 1 ·- 10" Drill Collars

17 1/2" Integral Blade Stabilizer 10 - 8" Drill Collars

1LU<1" Hole

Holding Assembly:

12 1/4" Bit 12 1 1 4 11 3 ·-poi n t H o 11 G r· H <:::am c r· 8 11 Hone 1 0 r i ll Colla r· 12 1/4 11 Integt·al Blade Stabilizer 11 - 8" Drill Col.Lar·s 7 3/4" Drilling .Jar·o 6 - Heavy Weight Pipe

§ __ )._/ 2 II H 0 l·~

Building Assembly: 8 1 /2 II Bit 8 1/2'' 3-point Rollr:~t· Hearnet· {UG ISS may b~:; mot·e desi1·ablc

depending 6 1/2" 1'·1onel Drill Collar

11 - 6 1 I 2 " D r· i .L 1 C o 11 a ,. ·o

7 3/4" Drilling Jars 6 - Heavy Weight Pipe

8 1 /2 II H 0 1 ~

Holding Assembly:

8 1/2" Bit 8 1/2 11 3-point Roller Reamer 6 11 ~1 one 1 0 t· i 11 Co 11 a r 8 11 3-point Roller Reamer 1 6 " Drill Collar 8 " Integral Blade Stabilizer 16 - 6 11 Drill Colla1·s 6 3/4" Drilling Jars 6 - Heavy Weigl1t Pipe

SAMPLES:

Collect drill cuttings as follows:

26 11 Hole every 30' 17 1/2 11 Hole evet·y 30 1

12 1/4'' Hole evet·y 10 1

upon 6ngle and course dit·ection}

Page 11

- 8 1/2" Hole every 10'

Formatior_samples ar€ Ormat representative. analysis.

p 9 v \ d ,- 1 p ,. 0 9

to be caught as above or as directed by Samples to be collected by mud loggers for

Page 12

SUMMARY OF DRILLING PROCEDURE.

1. Construct location. Move in dt·yholG digger at·td dr·iJl conductor hole. ~;et 50' of 30'' conductor· pipe. Concrete in with 10 yat·ds of r·e~dy mix. Civil COJltt·actor· to dig and construct cellar 12' x 12' x 11

2 • ~1 o v e i n and r· i g up P ..=H-1: o? r· H 2 3 1 . Spud i n '~J c 1 1 ~.-.• i t h 2 6 " b i t .

Dr·ill to a depth of 1000'. Anticipate upon losir1g complete retur·ns as sl1alloLJ as 150'

3. At 650', r·ig up bail~r- and bail ·~ell unl:il clearl. Collect a

4 .

5 .

6 .

7 .

r· e p r c:· c.;. e 11 t a t i \1 c s a rn p 1 e o f g r o u n d • .. J a t e r· . S t a t e o f ! 1 a • .... • a i i should witness samplir1g pr·oc~dur·e. Notify 24 hour·s pr·iot· to sampling.

Resume drilling. Dt·ill to a d?pth of 10()0' K55 BT &C casing. C>:ment 1,-Ji th 1900 sacks ( 3 0 1 0 II Hawaii cement + £j 0 ~6 silica f 1 ou ,. + 2 ~0 CaCl2 Cement calculatod at lOOt e>:cess. t.JQ c.

Cut off casing ar1d weld on casir1g t18ad flar1g2. 21 '' annulat· hydt·il. Test BOP to 600 psi.

R u 11 20" '!<11! ft3 of Typo + . 6 5 ·;~ CFn-3.

IH p p le up

Dt-ill Drill 1000'

out ft·om under·neath the 2(3'' casi n•:j t .• .~i th a 17 1 /2'' bit. to a deptl1 o·f 2200'. Son1e mud losses may occut· from to 1300'. Combat losse~; •..Jith LCr'l produc:ts.

At 2200' run 13 with 1955 sacks

3 / :J '' 6 14-l I< 55 N E \,J V (\ t•1 casing . Cement c a-::_; in g (3090 ft3/s~) of Type II portland + 40%

silica flour· + .65% CFR-3. woe

8. Cut off 13 3/8'' casing and • ... •eld on casing head flange. Nipple up BOP stack. Test rar11s to 1000 psi and hydr·il to 50fl psi.

9. Drill out from underneath th~ 13 3/8'' casing to a depth of 3900'. Maintai11 l1ole as straigl1t as possible. At 3900' prepat·e to run 9 5/8" casing.

10.

1 1 .

Run 3900' 540 sacks flour + 50 22A. woe.

of 9 5/8" 47ff C90 NEl·J Vl\11 casing. Cement \Jith (2020 ft3/sk of Type II portland + 40% silica lb/sk of spherlite + 4% gel + 1.25% CFR-3 + HALAD

Nipple up BOP stack. hydril to 600 psi. and rotating head.

Test Nipple

rams to up f lo•~;

1000 psi and annular· lir1e, mud-gas separator

p g v \ d ,- l p ,- 0 q 1 3

12. Drill ahead in the 8 " hole with mud a depth of 4100'. f1t 4100', pick up mud motor and directional tools. Kick well off at 2 /100' toward bottomhole target. Displace hole 865' in a TBA course direction to a depth of 7000' TVD. Drill to a t~~al depth of 7000' on water. Mud up if hole begins to get tight or develops drag. After doing directional work, cut mud back to clear water·. Continue building angle witt1 BHA and/or lock in angle with recommended BHA.

13. At 7000 1 displace mud with water ar1d run injection test.

1 4 . Run 3220 1

liner· off of 7 11 29~t

at3780 1•

L80 BT&C slotted casing liner. Hang Last t!1ree joir1ts are to be le·ft blank.

15. Pick up 3850' of 3 "drilling pipe+ 3150' of 5" dr·illing

1 6 .

17.

pipe. Rutl in hol9, cleatl out to Bl"M, circulate hole with clean water, and come out layirtg down drill pipe.

Lay doi..Jll 5 11

drill pipe. the hole.

d r i 11 Trip

pipe. If rnud is in the hole to bottom. Displace any mud

pick that

up 3 is in

Tear out ar1d move rig., Nipple up wellhead assembly.

pgv\ddpr·og 14

"

CASING AND CEMENT SUMMARY

20" 9~11 K?5 BT&C:

1 3 3 / 8 " 6 1 H K 5 5 N E ~J V 1111 :

Sur-face - 1000'

3010 ft3 (1900 sacks) of Type II portland cement + 40% silica flour -~ 40% silica flour + 2t CaCl2 +

.65% CFR-3

Calculated Excess: 100% Slurry Weight - 15.7 ppg Slut·ry Yield - 1.58 ft3/sk

~3ur"face -- 2200 1

3090 ft3 (1955 sacks) of Type II por·tlar1d cemor1t + ~0~ silica flour· + • 65~t C FR-3

Calculated Excess: GOt Slurry Weight - 15.7 ppg Slurt·y Yield - 1.58 ft3/sk

Sur· face - 3900 1

2020 ft3 (540 sacks) of Type II portland cement + 50 lb/sk of spherlitc + 4% gel + 1.25% CFR-3 +

1. 5% HALAD - 221\

Calculated Excess: 60%

Slurry Weight - 11 ppg Slurry Yield- 3.72 ft3/sk

7" 29# L80 BT&C Casing Linet· slotted with 1/2 11 x 2 11 slots on 18 Row Pattern

3780' - 7000' TO

p g v \ d ,. l p ,. 0 g Page 15

·--.!I_~H --~·-1 o'.Q,,;,P.v; ..... ~ 1 -~-ROAD ..... ..,..,- •

-,- - .~- I

PUNA GEOTHERMAL VENTURE

SITE PlAN MAP FOR TEMPORARY STRUCTURE LOCATION WELL PAD E AND STAGING AREA

~\ '-.1 ·--·- ·--·--·--·--·--·-:::::;:=-- I ·--·--·--

·~ I \ . \

I "• I .,\ .\ \~,\

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I \ ~ ~~\ \ . \./ \

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\ ' ·, [b

_______, ' KS.A

A ~31 POWER Pl..A.NT

I I I I I I I

l I I I I I I

I ,.; I I I

\. '

MTE J/12/IHl 1 sCALE 1' .. sao· REV. NO. 1

8'1' w. l'D'I.DW FIGURE NO.

0 500 1 000 FEET w w w I SCALf

EXPLANATION

/ ,.. / GEOTHERMAL LEASE BOUNDARY

-+ PRODUCTION WELL (PROPOSED)

-+ PRODUCTION WElL (EXISTING)

-t INJECTION WEll. (PROPOSED)

A AlR l.lONrTORING STATION

'-... ,...---......_. ___ --..., ...................... 7 I

~1 ' •-<H-1-' /

- L / -·--·- I -·--·- I -·--·--· ; -- I ·--·- .... . -· I --·--·--·--·n-·--·--·--·--·--·--·--·--·-'

'AO E

12'-rt 0 10'-0"

13'-rf

- I

JO" CONDUCTOR t-6'0"

- I

PLAN

VERTICAL SECTION

Y-o"

!PUNA GEOTHERMAL VENTURE

PRODUCTION WELL CELLAR

DATE 3/11ft\l SCALE 1" = 4'

BY 111. TU'LOW FIGURE NO. 2

EASEMENT S-1 --------ACCESS ROAD

......-945J.90~

~ ~~

I r ~-------~---0---~-~-~·>--11 __ 0 ___ 11--(·_) __ ll--0---l-~ -~.)--~ ---------------T,-1

I

l1

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: lr

I lj I I

""'"'" r• I I I I I I I I I I I I I I I I I I I I I I

: "! : I I I I I I :±' 0 I

,- 0 I ~~~@II! \

I : ~~"" ~~!

WELL PAD E

><S-6

r.tUD LOGGER 1 I ~~Q.!}\3r d ~ c::::m:::J J ~ ~ I - " 2 ~ ,!~ r, "'•- D LJ ! I V "---Jb.~ ~~ ~=ru.•ro 6 _,~ -~KH KS-J ,.,c:_ ____ ,,

~ "' tmJ ~ CAUSTIC TANK

I - I wuo COOLER

@--() c:JiLJ I t0 I I""'"' II@"'· I

D ~= @ n -·- iJ ----~,··----------~

o·

EQUIPMENT LIST

ITEM HEIGHT (FT)

\, CEOLDGIST TRAILER ............. \4.0 2. OIRECT10NA.l SERVICE:S ..•.•.•••• \2.0 3. AIR SERVICES... ,, .••••• 12.0 4. TOOL PUSHER..................... 12.0 S.. OR!WNG SUPEFUN'l'Do'OENT. .• H.D e. I.IUO SERVICES.. • •.••••• 12.0 7. I.IUO LOGGER., .•••.••..•.••••••••• 12.0 S. CRilL RIG,,,, .............•••••••••• 1e8.0 a, WATER TANI(\rlJEl. TNiK. •.•.•.. 20.0

\0, SCR HOUSE,, ......•.......•••..• 10.!1 1\. GENt:RATOR I'· ······ ....... 10.7 11. GENERATOR 2. ............. \0,7 lJ. WUO HOUSE,,,, ., .. ,.............. 8.4 14, J.IUO PUUP l1. ................... 1D.!i 15. UUO PUI.!P 2. ..••••.•..•.• 10.!1 16. UUO TN>It< 1.. ••••. •••••••.•..•• 4.4 17, UUO TANK 2. ............•••..•••• 4.4 16. RESERVE PIT ••..•..•••••••••••••..• -10.0 1R, PIPE IU.CXS (2). •••........••.•••• 6.7 20. CATWAU<.. .............. ........... 4.4 21. ,o.JR COI.IPRESSOR ................. 20.0 22. fRAC TANKS (4) .................. H-.0 23. UUO COOLER ...................... 24.1 24. CAUSTlC TANK ..... , .............. 14.0 2!5. orGASSER ............. 20.0

!50 100 fE!T

'"""'

PUNA GEOTHERMAL VENTURE! PAD E - WELL KS-5 DRILLING EQUIPMENT

AND TRAILER LAYOUT

DATE J/26/90 SCALE 1" • 50'

BY W. TU>LOW FIGURE NO. 3

,. GROUND SURFACE

CEllAR

36"' HOLE ---VIV.

26" HOLE ---_:1/

12-1/4 .. HOLE -------,1/

B-t/2" HOl£ --------/

,.

1000'

13-3/B"' 61f K-55 NEW V~ CEMENTED 0-2200"

2200'

9-5/B"' 47# C-90 NE.W V~ CEMENTED 0-3900'

9-S/B"" 47# x r zgl L-eo UNER 1-W-!GER

-------- 3900'

/ 29f L-eo 8T &C SLOnED U!'iER HUNG UHCEMENTED J7S0'-7000'

PUNA GEOTHERMAL VENTURE

PRODUCTION WELL CASING DESIGN

I».TE J/28/90 +---- REV. 1

BY w. rm..ow FIGURE NO. 4 L_-----------------------------------------~~~~------_L~~~~

.. -- 3" VALVE

20" CASING

IPUNA GEOTHERMAL VENTURE

20" BOP CONFIGURATION

REV. 1

FIGURE NO. 5

PUNA GEOTHERMAL VENTURE

D.I.TE J/28/to

8'1' w. TU'I..OW

13-3/8" BOP CONFIGURATION

REV. 1

FIGURE NO. 6

b THROm£ VN_VE

~FLOWUNE

MASTER VALVE

f-o--- DOUBLE 'S SIDE VN...YE.

f-o---- j VALVE

\---1'->-------- lJ-3/8" CASING HEAD

~----~----1 ~NA GEOTHERMAL VENTURE

IJY 'II. TU'LOW

9-5/8" BOP CONFIGURATION

IGURE NO. 7

J" VN....VE

1r:f VN....VE

1-<-- DOUBLE S' SIDE VN...VE

PUNA GEOTHERMAL VENTURE

PRODUCTION WELLHEAD CONFIGURATION

I·~-,