Technical Overview - Boart...

Wireline coring rodsTechnical Overview

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ProdUcTiViTY THroUgH sAFe, reliABle And TrUsTed designWith market-leading thread strength and Boart Longyear's innovative lightweight V-Wall™* body option, Boart Longyear’s RQ™ drill rods will expand your drilling capacity while lowering your costs in all ground conditions and drilling applications. Rated for more than 3000 m and field-proven to more than 3800 m, the RQ rod design features a combination of exclusive heat treatments and a patented thread design to provide the ultimate in rod performance and longevity.

For more information on coring rods scan with a QR code reader on your smart phone. *Please refer to V-Wall™ overview on page 6.

Q, HD, and RQ thread designs are proprietary to Boart Longyear. Due to the significant safety risk, Boart Longyear™ drill rods should never be mixed with other manufacturers’ rods. Doing so may cause catastrophic equipment failure, leading to bodily injury or death. In addition, mixing rods will void the Boart Longyear warranty. 3

rod THreAd oVerVieWWireline drill rod THreAds

rQ™ THreAd design

Q™ THREAD

- Boart Longyear’s original wireline thread

- Easy make and break

RQ™ THREAD

- Patented upgrade over Q™ thread

- Maximum load efficiency

- Increased strength and wear life

HD THREAD

- Large diameter drilling

- Robust thread

Q

RQ

WT/HD

WJ/WJ LW

W

Q

RQ

WT/HD

WJ/WJ LW

W

Q

RQ

WT/HD

WJ/WJ LW

W

Q

RQ

WT/HD

WJ/WJ LW

W

Q

RQ

WT/HD

WJ/WJ LW

W

Q

RQ

WT/HD

WJ/WJ LW

W

Increased joint taper cuts the number of turns during make and break from three to two, easing make-up and reducing thread wear.

The reverse angled load flank reverses radial stresses, reducing total stress levels by 20% compared to Q. This increases load efficiency and load capacity.

• Coarse RQ threads (three threads per inch) with increased taper, provide easier make and break as well as anti jamming

• Load efficiency of 50% provides ultimate strength for demanding applications

25%

20%

15%

10%

5%

0%15 10 5 0 -5 -10

Thread Load Flank Angle

STRESSREDUCTION

Competing ‘deep hole’ rods

Copyright ©

2013 Boart Longyear. A

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MidBodY Bend sTrengTHSignificant research and development has resulted in a proven midbody heat treatment process to resist midbody twisting due to helical whirling. Midbody bend strength is evaluated in full-scale four-point bend testing.

US$

Milli

ons

Q™

RQ™ 50%

30%

Load Efficiency

Q™

RQ™ 175%

140%

Q™

RQ™ 88%

42%

JointLoad Capacity

Drill Rods

Q™/RQ™ Drill Rods 200%

100%

Drill Rod Bend Strength

Joint Material Strength

4

1

1JoinT sTrengTHMaterial at the ends of RQ™ rods is heat treated to obtain 175% strength increase over the midbody.

Joint Load Capacity can be estimated as the midbody strength, times the heat treated material strength increase, times the joint load efficiency.

US$

Milli

ons

Q™

RQ™ 50%

30%

Load Efficiency

Q™

RQ™ 175%

140%

Q™

RQ™ 88%

42%

JointLoad Capacity

Drill Rods


100%



US$

Milli

ons

Q™

RQ™ 50%

30%

Load Efficiency

Q™

RQ™ 175%

140%

Q™

RQ™ 88%

42%

JointLoad Capacity

Drill Rods


100%



* *

JoinT loAd eFFiciencY‘Load Efficiency’ is the ratio of stress levels induced in the joint as compared to the midbody under a given load. As such, this ratio is a measure of the quality of the engineering design rather than material strength.

RQ provides 50% load efficiency versus Q at 30%.

US$

Milli

ons

Q™

RQ™ 50%

30%

Load Efficiency

Q™

RQ™ 175%

140%

Q™

RQ™ 88%

42%

JointLoad Capacity

Drill Rods


100%



*

* Baseline is midbody tubing at 100%

5

Cross section of Case Hardened RQ™ Pin Thread

cAse HArdened Pin THreAdsSignificant research and development over many years has resulted in a proven case hardening process which remains unmatched in the marketplace.

The pin thread crest is case hardened to eliminate the transfer of wear material between threads. This ‘adhesion’ wear occurs between threads of equal hardness, leading to galling, loss of thread form, and reduced load capacity.

Case hardening maintains thread form and delivers all the benefits of the RQ™ design.

Boart Longyear™ Patented RQ™

Thread After 60 make/break cycles, the case hardened pin thread resists wear.

PerForMAnce

Competing Thread After only 30 make/break cycles, the non-case-hardened pin thread allows adhesion wear.

Boart Longyear™ Patented RQ™ Thread After 60 make/break cycles, the box thread shows minimal abrasion wear.

Box THreAd WeAr

Competing Thread After only 30 make/break cycles, the box thread shows adhesion wear which leads to galling and seized threads.

Pin THreAd WeAr

rATed dePTH cAPAciTYARQ TK 1500 m (4,900 ft)BQ 1500 m (4,900 ft)BRQ TK 1500 m (4,900 ft)BRQ 3000 m (9,800 ft)NQ 1500 m (4,900 ft)NQ V-WALL 1680 m (5,500 ft)NRQ 3000 m (9,800 ft)NRQ V-WALL 3300 m (11,000 ft)HQ 1500 m (4,900 ft)HQ V-WALL 1680 m (5,500 ft)HRQ 2500 m (8,200 ft)HRQ V-WALL 3000 m (9,800 ft)PHD 1500 m (4,900 ft)PHD V-WALL 2000 m (6,500 ft)

Copyright ©


ll rights reserved. AU

Patent N

o. 722,567, 2008222974; CA

Patent N

o. 2,216,459.

Reverse angled load flank

Case hardened pin thread crest

V-WAll™ oVerVieWV-WAll™ For increAsed ProdUcTiViTY And redUced cosTsWith up to 30% less weight in the drill string, productivity will increase while overall operation costs will be reduced.

V-Wall Rods will:

- Decrease operator fatigue in rod handling – increasing safety and productivity.

- Decrease fuel costs in rod transportation, and increase the fuel efficiency of each rig on the site.

- Increase drill’s rated depth capacity.

•Forexample,adrillratedto2500mHRQwillbeabletomanagea3000mHRQV-Walldrillstring.

- Increase midbody flexibility, which is advantageous in wedging or steering applications, but does not reduce drill string stiffness during coring operations. The figure below demonstrates that the helical whirling response to normal drilling loads (pitch of the twisted ‘corkscrew’ shape of the drill string) is identical for both standard and V-Wall rods.

60

50

40

30

20

10300 500 700 900

Speed (RPM)

Pitch(ft)

1100 1300 1500

Rod IDStandard WallV-Wall™

MIDBODY BENDING STRESS

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V-WAll™ For FAsTer inner TUBe TriPPingAnnular clearance between the core barrel and the interior wall of the rod is larger which enables faster core barrel descent speeds.

When combined with Quick Descent™ core barrel technology, tripping speed increases up to 50%.

RQ™ Box Thread

Increased inside diameter for faster inner tube tripping

Light weight for increased depth capacity and reduced operator fatigue

RQ™ Case Hardened Pin Thread

Thru-wall Heat Treatment Thru-wall Heat Treatment

V-WAll PUll-BAcK AdVAnTAge

PHD V-WALL 542 M

PHD STRAIGHT 417 M

HQ STRAIGHT 634 M

NQ STRAIGHT 931 M

PHD V-WALL VS. STRAIGHT WALL HRQ V-WALL VS. STRAIGHT WALL NRQ V-WALL VS. STRAIGHT WALL

Drill: BLY LF™90DPullback Rating: 16,000 lbs (7273 KG)



+30%

HRQ V-WALL 773 M

+22% NRQ V-WALL 1061 M

+14%

0 m

250 m

500 m

750 m

1,000 m

1250 m

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Copyright ©


ll rights reserved. AU

Patent N

o. 2008222974; ZA

Patent N

o. 2009/05921; Patents P

ending. Q and LF

are trademarks of B

oart Longyear.

Wall Thickness Transition Zone

Ratings are rig specific. For reference only.

ARQTK Performance Rating

Metric U.S.

Rated Drilling Depth by Joint Strength 1 500 m 4,900 ft

Rated Pullback 130 kN 29,250 lbf

Rated Torque (Operating or Make-Up) 800 Nm 590 ft-lb

Recommended Minimum Make-Up Torque for Deep Holes over 2000m –––––– ––––––

Recommended Minimum Make-Up Torque for Deep Holes over 1000m 381 Nm 281 ft-lb

Recommended Minimum Make-Up Torque 339 Nm 250 ft-lb

API Theoretical Burst Pressure at Box Shoulder (per API bulletin 5C3) 74 733 kPa 10,839 psi

API Theoretical Burst Pressure at Midbody (per API bulletin 5C3) 90 138 kPa 13,073 psi

API Theoretical Collapse Pressure at Midbody (per API bulletin 5C3) 94 464 kPa 13,700 psi

BQ Performance Rating

Metric U.S.







API Theoretical Burst Pressure at Box Shoulder (per API bulletin 5C3) 39 500 MPa 5,729 psi

API Theoretical Burst Pressure at Midbody (per API bulletin 5C3) 93 200 MPa 13,511 psi

API Theoretical Collapse Pressure at Midbody (per API bulletin 5C3) 97 300 MPa 14,117 psi

ARQTK Weights & Measures

Metric U.S.

Rod Midbody Outer Diameter 44.83 mm 1.76 in

Rod Midbody Inner Diameter 37.39 mm 1.47 in

Rod Joint Inner Diameter 37.39 mm 1.47 in

Rod Stiffness (Moment of Inertia) 2 538 mm4 3.9 in4

Rod Weight per Unit Length 3.77 kg/m 2.53 lb/ft

Rod Content Weight (Water) per Unit Length 1.09 L/m 0.09 gal/ft

BQ Weights & Measures

Metric U.S.






coring rods TecHnicAl inForMATion

8

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BRQTK Performance Rating

Metric U.S.










BRQ Performance Rating

Metric U.S.



Rated Torque (Operating or Make-Up) 1 500 Nm 1,100 ft-lb




API Theoretical Burst Pressure at Box Shoulder (per API bulletin 5C3) 61 300 MPa 8,891 psi

API Theoretical Burst Pressure at Midbody (per API bulletin 5C3) 93 200 MPa 13,511 psi

API Theoretical Collapse Pressure at Midbody (per API bulletin 5C3) 97 300 MPa 14,117 psi

BRQTK Weights & Measures

Metric U.S.





Rod Weight per Unit Length 4.95 kg/3 m 3.30 lb/10 ft


BRQ Weights & Measures

Metric U.S.






NOTE: All rod capacities and failure loads were determined through simultaneous torque and tension load testing by an independent party. An appropriate safety factor has been applied in determining the ratings above. These ratings apply to new, unused rods of Boart Longyear manufacture, in a straight vertical down hole, assuming compliance to Boart Longyear Care and Handling or Product Literature and standard core drilling practices. Actual performance may vary depending on operating conditions and drilling practices. Actual Burst and collapse pressure ratings will be reduced under drilling loads. Increase make-up torque to match operating torque in deep downholes. Operating torque should not exceed make-up torque.

9

Copyright ©


ll rights reserved. RQ

is a trademark of B

oart Longyear.

coring rods TecHnicAl inForMATionNQ Performance Rating

Metric U.S.



Rated Torque (Operating or Make-Up) 1 200 Nm 900 ft-lb







NQ V-Wall Performance Rating

Metric U.S.



Rated Torque (Operating or Make-Up) 1 200 Nm 900 ft-lb


Recommended Minimum Make-Up Torque for Deep Holes over 1000m 1 000 Nm 750 ft-lb





NQ Weights & Measures

Metric U.S.




Rod Stiffness (Moment of Inertia) 11408 mm4 20.4 in4



NQ V-Wall Weights & Measures

Metric U.S.







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NRQ Performance Rating

Metric U.S.




Recommended Minimum Make-Up Torque for Deep Holes over 2000 m 1 400 Nm 1,000 ft-lb

Recommended Minimum Make-Up Torque for Deep Holes over 1000 m 1 000 Nm 750 ft-lb





NRQ V-Wall Performance Rating

Metric U.S.




Recommended Minimum Make-Up Torque for Deep Holes over 2000m 1 400 Nm 1,000 ft-lb






NRQ Weights & Measures

Metric U.S.







NRQ V-Wall Weights & Measures

Metric U.S.







11

Copyright ©



and V-W

all are trademarks of B

oart Longyear.


HQ Performance Rating

Metric U.S.




Recommended Minimum Make-Up Torque for Deep Holes over 2000m ––––– –––––


Recommended Minimum Make-Up Torque 1 010 Nm 750 ft-lb




HQ V-Wall Performance Rating

Metric U.S.










HQ Weights & Measures

Metric U.S.







HQ V-Wall Weights & Measures

Metric U.S.







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HRQ V-Wall Performance Rating

Metric U.S.










HRQ V-Wall Weights & Measures

Metric U.S.







HRQ Performance Rating

Metric U.S.






Recommended Minimum Make-Up Torque 1 000 Nm 750 ft lb




HRQ Weights & Measures

Metric U.S.







Copyright ©



and V-W

all are trademarks of B

oart Longyear.

13


PHD V-Wall Performance Rating

Metric U.S.






Recommended Minimum Make-Up Torque ––––– –––––




PHD V-Wall Weights & Measures

Metric U.S.







PHD Performance Rating

Metric U.S.






Recommended Minimum Make-Up Torque ––––– –––––




PHD Weights & Measures

Metric U.S.








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Mining And exPlorATion drilling ProdUcTs

Genuine Q™ Wireline Tooling

Diamond Products

www.BoartLongyear.com•ASX:BLY

Rods and Casing

Jan 2013

Global Headquarters Boart Longyear10808 South River Front ParkwaySuite 600South Jordan, Utah 84095United States of [email protected]

Tel: +1 801 972 6430Fax: +1 801 977 3374

Latin America Boart LongyearPortal Riesco Av. El Salto 4001, HuechurabaSantiago, Chile 858 [email protected]

Tel: +56 2 595 3300 Fax: +51 242 671

Canada Boart Longyear 2442 South Sheridan WayMississauga, OntarioCanada L5J [email protected]

Tel: +1 905 822-7922 Fax: +1 905 822-7232

Europe Boart Longyear12 Avenue des MorginesCH1213 Petit-Lancy, Geneva, Switzerland [email protected]

Tel: +41 22 709 0800Fax: +41 22 709 0801

Asia PacificBoart Longyear 26 Butler BoulevardAdelaide, [email protected]

Tel: +61 8 8375 8375Fax: +61 8 8375 8497

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