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Technical Specification

of TA 7000/4500D Drilling Rig


Part I General Technical Specification and RequirementsGeneral introduction

1.1 The drilling rig is designed with advanced performance, reliable operation, convenient

transportation, economic running and meeting HSE requirements. The performance and

manufacturing quality can reach international level of equivalent drilling rigs.

1.2 The rig is as per the SY/T5609-1999 “Model and basic parameter for drilling rig”. Its main parts

(such as base, drawworks, traveling block, crown, swivel, rotary table, mud pump, etc.) are

designed and manufactured as per API standard, and the main parts are marked with API.

1.3 The rig with high automaticity can meet the international requirements of drilling market.

1.4 The rig is as per HSE requirement with high adaptability in the condition of explosion-proof,

anti-leakage, anti-corrosion (oil paint), moisture-proof, winter proof, high temperature resistant,

sand protection, etc.

1.5 The rig with reasonable arrangement can meet the requirements of explosion-proof, fire fighting,

well control, material supply, installation, application, dismantlement, convenient maintenance,

etc.

1.6 The rig with nice appearance and strong practicability can meet the requirement of 5000m well

and drilling process of difficult well.

1.7 The modular drilling rig is convenient for hoisting and transporting integrally, for adjusting in the

short distance. The dimension of single modular can meet the requirement of railway and road

transportation.

1.8 All the unit of instruments of drilling rig is metric system and British system (such as MPa, psi).

All of the nameplates are English versions. The hoisting and safety marks are installed on the

rig.

1.9 The some parts of complete set of drilling rig are imported and some are manufactured here.

That is the mature and reliable parts is manufactured from us and some crucical parts which

cannot meet the performance and requirement are imported.

1.10 The integration design of mechanical, electrical and hydraulic and with good man-machine

interface.

1.11 The interfaces of installing top drive are reserved on relevant positions.

1.12 The air and electrical system on wellsite are as per relevant international standard.

1.13 The independent ground protection units are equipped on the house, mud tank, oil & water

tank, etc.

1.14 The reliable adapter is used on the oil tubing connection of hydraulic and air system.


1.15 The wiring of hydraulic, air and electrical system is safe and reliable with reasonable

arrangement.

1.16 The ambient temperature: -20℃～+50℃, humidity (+20℃): 90%.

2. Standards

SY/T5609-1999 Type and Basic specifications for Petroleum Drilling Rig

API Spec Q1 Quality guideline

API Spec 4F Mast and substructure specification for workover and

drilling rig

API Spec 8A Drilling and production hoisting equipment

API Spec 8C Drilling and production hoisting equipment (PLS1 and

PLS2)

API Spec 7 Rotary drill stem elements specification

2.7 API Spec 7K Drilling equipment specification

2.8 API Spec D10 General principle of rotary drilling device

2.9 API Spec 7F Driving roller chain for drilling rig

2.10 API Spec 9A Wireline specification

2.11 API RP 9B Application, maintenance and recommended method of

wireline in oilfield

2.12 API RP 500 Classification of area for electrical installations at drilling

rigs and petroleum production facilities

2.13 SY/T5225-1994 Safe production and management regulars of oil & gas drilling,

development, storage & transportation and explosion-proof & flameproof

2.14 SY/T5958-94 Arrangement principle and technical requirement on

wellsite

2.15 SY/T5957-94 Technical requirement of electrical and air installation on

wellsite

2.16 SY/T5466-1997 Engineering condition prior to drilling

2.17 SY5308-87 Painting technical condition of petroleum drilling &

production product

2.18 SY 5305-87 General technical condition of weld assembly for

petroleum production & drilling mechanical product

2.19 AISC Steel structure handbook (AISC, 9th edition)


2.20 API RP 53 Classification of control system design for well control

device

2.21 API Spec 16D Specification for control system of well control device

2.22 API Spec 16C Choke and kill device specification

2.23 IEC Electrical apparatus for explosive gas atmosphere

2.24 IEEE Association rules on electric and electrical engineer

2.25 JB/T7845-1995 Electrical control unit for drilling rig (on land) with electrical

apparatus

2.26 GB4720-84 Electrical control device Section one Electrical device with

low voltage electrical apparatus

2.27 GB3797-89 Electrical control device Section two Electrical device with

electrical apparatus

2.28 IEC44－81 or APIRP500 Classification of area for electrical installations at

drilling rig

2.29 SY/T6276-97 ISO/CD14690 Relevant item of HSE, API, national and industry

standard

Technical parameter

1. Nominal drilling depth (Ф114mmDP) 4500～7000m

(Ф127mmDP) 4000～6000m

2. Max. hook load 4500kN

3. Rated power, drawworks 1470kW

4. Shift, drawworks 4+4R DC motor driven

stepless speed regulation

5. Rope, lifting system 6×7

6. Dia., wireline Ф38mm

7. Sheave OD, lifting system Ф1524mm

8. Opening size, central pipe of swivel (top drive) Ф75mm

9. Rated power and Qty., mud pump 1176kW (1600hp) ×3

(F-1600 DC motor driven by v-belt)

10. Nominal dia., rotary table opening Ф952.5mm (37-1/2”)

11. Shift, rotary table 2+2R,DC motor driven


indepently, stepless, speedregulation

12. Model and effective height, mast front open K-type 45.5m

13. Subbase type rotation & raising type

14. Height, substructure 10.5m

15. Height, bottom surface of rotary table beam 9m

16. Driving mode, power AC-SCR-DC

17. Model and Qty., main generator set CAT3512B/SR4B×4

18. Power and RPM, diesel generator 1310kW/1500rpm

19. Engine 1900kVA 600V 50Hz COS

Φ0.7 brushless excitation

20. Model and Qty., auxiliary generator CAT3406×1

21. Power, auxiliary generator 300kW

22. Voltage and frequency, auxiliary generator 400V 50Hz

23. Electrical drive system AC-SCR-DC

one-to-one control

24. Input voltage 600VAC

25. Output voltage 0-750VDC adjustable

26. Output current 1850A, DC (rated)

27. MCC system 600V/400V(3phrases)/230V(single phrase),50HZ

28. HP manifold Ф103mm×35MPa with

interface of kill manifold and cementing manifold

29. Standpipe opening size Ф103mm×

35MPa double standpipe

30. mud tank effective capacity 320m3

31. Air tank 2×2.5+4m3

32. Pressure, air supply 1MPa

33. Diesel tank 100m3 (45m3 +55m3)

34. Industrial water tank water tank 100m3 (60+40)

cooling water tank 25m3

35. Oil tank total capacity 20m3 (5m3×4)

36. Ambient temperature -20—+55°C

Humidity ≤90% (+20°C)

Wind speed less than 110km/h


General schemeThe rig is powered by CAT3512B/1900KVA generator sets (4), which can provide 600V 50Hz

AC and then change into 0-750V DC via SCR unit to drive DC motor of drawworks and mud

pump.

The drawworks is driven by 800KW DC motors (2), which can realize stepless speed regulation.

Two gears come from two-speed chains between input shaft and drive shaft, and another two

gears come from high and low speed clutches between drive shaft and drum shaft. Thus the

drawworks can reach 4 forwards 4 reverses. Drawworks main brake is equipped with hydraulic

disk brake and auxiliary brake is equipped with water-cooling electromagnetic eddy current

brake.

Rotary table is driven by 800KW DC motor (1) independently via coupling (or cardan shaft), after

speed reduction through two-speed gear box. Rotary table inertia brake is equipped on one

end of input shaft for speed reducer.

Mud pumps (3) are driven by 800KW DC motors via V-belts.

The electrical driving system is available for one-to-one control mode, AC-SCR-AC drives.

The mast is featured with front opening K-type with effective height of 45.5m. The height of

rotation & raising substructure is 10.5m. The min. height of rotary table beam is 9m. Mast and

substructure are all with low-position installation type and raised by drawworks power. Mast

and substructure share one raising rope, which is reeved at one time and raised continuously

by using drawworks power.

Wellsite arrangement5.1 Well arrangement principle

The wellsite arrangement is as per some standard requirements and regular.

The wellsite arrangement is for land saving, convenient operation, safe production and environment

protection.

5.2 standards

API RP 500 Classification of area for electrical installations at drilling rigs and petroleum

production facilities

SY/T5225-1994 Safe production and management regulars of oil & gas drilling, development,

storage & transportation and explosion-proof & flameproof

SY/T5958-94 Arrangement principle and technical requirement on wellsite


SY/T5466-1997 Engineering condition before drilling

SY/T5957-94 Technical requirement of electrical and air installation on wellsite

5.3 Wellsite arrangement

It can be divided into 5 areas: substructure area, pump house area, power/electrical control area,

mud circulating & water tank area and oil tank area.

(1). Substructure area: crown, traveling block, hook, top drive, rotary table, drawworks, mast,

subbase (incl. slide, ladder, etc.), DP slide & pipe rack, driller’s control house, dog house,

hydraulic winch, wellhead tools, air winch, drawworks cooling water tank, etc.

Pump house area: 2 sets of F-1600 pump sets, drilling fluid manifold, etc.

(2). Pump house area: 3 sets of F-1600 pump sets, drilling fluid manifold, etc.

(3). Power/electrical control area: 4 diesel generator house and 2 VFD/MCC house in parallel

position.

(4). Mud circulating & water tank area: including mud circulating tank, mud purifying unit, water

tank, etc.

(5). Oi tank area: including various oil tanks, pumps and lines.

Oil, air, water and electrical lines between areas are all arranged in the pipe groove. The pipeline

grooves on the substructure is foldable.

Part II Technical performance and structure for main componentsTC350 crown (as per API Spec 8A/4F)

Basic parameter

Max. Hook load (6×7) 4500kN

Qty., main sheave 7pcs

Dia., main sheave Φ1524mm (60”)

Dia., wireline Φ38mm

Structure and technical requirements

Reeving mode: clockwisely

W/φ600mm sand sheave (1),φ400mm auxiliary sheaves (4) with safety chain

W/5T girder-type crane boom (1) of crown sheave

The jump bar is equipped on the sheave to prevent wireline jumping or falling from the groove.

Intermediate frequency hardening for all the sheaves shall be done and NDT shall also be done

and be qualified.

Grease cup is installed on the bearing end to lubricate separately.


Hadrails are equipped around crown and kick plate is equipped with the height of 200m, protection

devices are equipped on the crown ladder.

Crown frame is equipped with connecting beam of installing top drive, padeye and installation

ring.

Crown frame is equipped with rubber crown saver beam.

W/lightning conductor seat and aviation lamp seat.

Receptacles for flagpole are equipped.

API is marked on the crown.

YC450 traveling block (as per API Spec 8A)

Basic parameter

Max. hook load 4500kN

Qty., main sheave 6

Dia., main sheave Φ1524mm

Dia., wireline Φ38mm


The hook of traveling block is designed with major arc, which can meet the installation requirement

of top drive. Adequent strength shall be on the side plate.

Intermediate frequency hardening for all the sheaves shall be done to improve the surface hardness

and NDT shall also be done and be qualified.

Grease cup is installed on the bearing end to lubricate separately.

API is marked on the traveling block.

DG450 traveling block (as per API Spec 8A)


Opening size, main hook mouth 220mm

Working travel, spring 200mm

Dia., main hook mouth 180mm

Dia., backup hook mouth 120mm

API is marked on the hook.


Mast (as per API Spec 4F)

Basic parameter


Effective height (drill floor to bottom surface of crown beam) 45.5m

Installation height, racking board 24.5m

25.5m

26.5m

Setback capacity, racking board (127mm DP, 28m setback) 7000m

10” DC 4 strings,

8” DC 6 strings

Wind resistance capacity

a. Working condition for stopping drilling (without hook load and full setback) 36m/s

b. Safety condition (without hook load, without setback on racking board) 47.8m/s

c. Raising and lowering mast ≤8.3m/s

Structure and accessories

The mast is with front opening type. The main body can be divided into 5 sections. They are

connected by single & double padeyes between each section. Crossbeam at back is connected

by brace and crossbeam.

Mast leg is installed on the base foundation. The mast is raised & lowered integrally by drawworks

via A-frame.

The front/rear alignment & left/right alignment is performed by increasing and decreasing shims

between connecting position after raising the mast. Jack installation positions are reserved

and it is equipped with 50T jacks (2).

The mast is equipped with cage-ladder on both sides. One is to crown and another is to racking

board. It is equipped with climbing-assist devices (2), fall arresters (3) (one on left, one on right

and one on racking board).

C/ single racking board (5KN air winches (2) and air lines are installed on racking board) with

handrail and wind wall. It is equipped with movable fingerbeam, safety chain and escaping

device (imported) on racking board.

C/ double standpipe stand, deadline stabilizer, kick back roller, 2.5T suspension gin poles (2sets,

rotation angle 270º), and adjustable hydraulic casing stabling board (with mechanical arm).

C/ tong counterbalance, sheave and bracket (1).

Deadline anchor is installed inside of mast right leg with suitable height from drill floor, which can

reel the lines.


The lighting lines, air lines, video monitoring lines, electrical crown saver, etc. are installed on the

mast and the installation shall meet the HSE requirements. Fall arrester is equipped on the

mast accessories (nut, pin, lamp, etc.). The safety chain is equipped on the crown and mast

auxiliary sheave. The hoisting units are equipped with lugs and rope shield.

It is equipped with buffer unit for raising and lowering mast (incl. 2 cushion cylinders, pipelines,

etc.). The lifting ring of safety belt is equipped at working position for personal safety.

It is equipped with mast raising rope. Rope head is placed in the special rope hanger in the mast

upper & intermediate section after raising mast.

The mast shall meet the installation requirements of top drive, liggting wires, drilling fluid manifold,

air lines, etc. It is forbidden to cut holes and to weld the accessories on the mast by electric/

gas welding on site.

It is equipped with adjustable support brackets (3sets, two small and one big), which is convenient

for supporting mast while lowering mast. It is equipped with support platform of traveling block

and hook (1).

C/ mast transportation support (1).

The installation position of 500T top drive reactive torque beams is reserved and its installation

dimension shall be provided by party A.

API is marked on the mast.

Deadline anchor

Model JZG41

Installation position ODS, inside the mast

Transducer tension force type

Max. load, deadline 410kN

Dia., wireline φ38mm (1-1/2”)

Casing stabbing board

The raising and lowering of hydraulic adjustable casing stabbing board can be controlled hydraulically

with the range of 0~3.7m. The mechanical arm shall be changed into stabbing board while

mechanical arm is not used to stabilize the casing in order to realize this operation manually.

The security precautions shall be equipped on the stabbing board.


Drilling wireline

Spec. φ38mm, EIPS 6×19S, steel core, RH

Length 1200m

SL450-5 swivel (as per API Spec 8A)

Basic parameter

Max. static load 4500kN

Max. RPM 300r/min

Max. working pressure 35MPa

ID, central tube Φ75mm

Thread, adapter lower end 6-5/8” REG LH

Angle of gooseneck central tube and vertical line 15°


The wash pipe and packing is featured with case-type structure. It can be change quickly and it is

not necessary to move bracket and gooseneck pipe.

W/ pneumatic spinner to accomplish DP spinning operation. W/ muffler.

API is marked on the swivel.

High-pressure rotary hose

Rotary hoses (2 pcs) with the feature of ID 3”, length 19m, 23m and pressure 35MPa (or 70MPa)

connect with standpipe via 4” 1502 union. Protection chains are equipped on the both ends of

rotary hose. Air lines of swivel spinner and rotary hose shall be fixed untidily.

ZP375 rotary table (as per API Spec 7K) and its driving uint

Basic parameter

Max. static load 5850KN

Dia., opening hole 952.5mm

Max. working torque 32362N.m

Max. RPM 300r/min

Gear ratio 3.56


Technical requirement

Insert bowl is casted element and its size is as per API. Kelly bushing and roller bushing can be put

into the split insert bowl. The long and short slips can be used.

The rotary table is splashing lubrication with reliable sealing performance.

Padeye pin connections are used to fix the rotary table.

API is marked on the rotary table.

Driving unit of rotary table

The rotary table is driven by 800KW DC motor (1) independently via coupling, 2-shift speed reducer

w/inertia brake. It is placed under the drill floor and parallel with the drill floor.

Rotary table bushing (as per API Spec 7K)

20” (for 20” casing running)

11 3/4”-13 3/8” (for 13 3/8” casing running)

9 5/8”-10 3/4” (for 9 5/8” casing running)

2 3/8”-8 5/8” (for 7” casing running)

2 3/8”-8 5/8” (for normal drilling)

2 3/8”-8 1/2” bushing inner square (for drilling)

Lifting bail unit for bushing

5 1/4” roller bushing (square and four pin driven)

3 1/2” roller bushing (square and four pin driven)

Non-slip pad for ZP275 rotary table

F-1600 pumps

Basic parameter

Model, mud pump F-1600

Max. size, cylinder liner 180mm

Max. pressure 34.4MPa

Stroke 305mm

Rated SPM 120r/min


Structure and technical parameter for pumps

F-1600 pump is driven by DC 800KW motors (2) through coupling and driving shaft. It consists of

base with pump, motor base, belt tensioning adjusting device, belt wheel, narrow V-belt, belt

guard, etc. The central distance of pump is 4500mm.

Rated SPM of pump is 120r/min.

Electrical vertical spraying unit is used on the spraying pump with the motor power if 2.2kw, power

supply of 400V, 50Hz. The 1/2” steel pipe is equipped on the cable of spraying pump.

W/hoisting rack, small crane and special tools.

The relief line of safety valve for mud pump circulates to circulating tank. The pressure gauge is

connected by flange.

The HP positions of pumps are all connected by flange.

8-10mm steel plate is used for sealing the base with pump, which can prevent mud storing in the

base and prevent mud while in dragging and pulling condition.

Slide is equipped on the lower section of water tank of sprinkling pump for pulling and pushing

water tank while cleaning.

The components mainly sustained pressure of mud pump, such as liner, piston, piston rod, packing,

packing gland, valve, valve seat, valve cover, etc. are as per API 7K and is marked with API.

Each set of mud pump is equipped with one 75KW charging pump.

Drilling fluid manifold

Basic parameter

Max. working pressure 35MPa (or 70 MPa)

Norminal opening size Φ103mm (4”)

Working temperature range -29℃~121℃Structure and technical requirement

Double standpipe, double passages on the ground, H-structure (5 outlets).

W/pressure-resistant gauge with double scale in metric system and British system, nominal

pressure 35MPa (or 70MPa), nominal opening size 103mm (4”). Pressure-resistance strength

test for pipeline and HP mud gate valve shall be performed.

The general structure is designed based on some relevant dimension of wellsite arrangement

drawing, base, mast, etc. The drilling fluid manifold shall not be interfered with the parts of

drilling rig.

Return line is equipped on the double ground pipeline. 2”×8MPa mediate-pressure hose connects

with mud suction tank.


The filter-style is used for standpipe seat for discharging and releasing the pollution.

Double standpipe. Five outlets are equipped on the gate of substructure in order to meet the

requirement of installing the pressure gauge, pressure sensor, 1502 union (2) and meet the

requirement of sampling. Substructure gate sets is with integral type, which is convenient for

installing, dismanting and transpirting.

The height from upper part of gooseneck of standpipe to drill floor is 17.5m, 21.5m, w/19m, 23m

rotary hose.

The gate of substructure is installed 1.2m away from drill floor in order to install the pressure

gauge and pressure sensor, trip out and fill in the mud. The interfaces of cementing and killing

manifolds are equipped. Substructure gate sets is with integral type, which is convenient for

installing, dismantling and transporting.

W/35MPa or 70MPa choke & kill manifold.

Diesel generator sets

Basic parameter

Model and Qty., main diesel generator sets CAT3512B/SR4B×4

Power, diesel generator 1310kW

RPM, diesel generator 1500r/min

Model and capacity, generator SR4B 1900KVA

Voltage, frequency and power factor, generator 600V 50Hz 0.6

Qty. and power, auxiliary generators 1×300kW

Voltage, frequency and power factor, auxiliary generator 400V/230V 50Hz 0.8

Technical performance and requirement

It can meet the drilling process requirement of 7000m drilling rig with the feature of explosion-proof,

shockproof, dampproof, fireproof and noise protection.

The rig can run stably and reliably in the ambient temperature of -30℃~+50℃. The main diesel

generator is started up by pneumatic motor and auxiliary diesel generator is started up by

battery w/oil suction pump. Dry-type sparkle arrester is equipped in the exhaust pipe.

The main sets or more than two sets shall be run combinedly based on the demands. The frequency

and voltage for electric network is normal and stable.


Main generator sets is equipped with generator house with the overall dimension of

10000mm×2900mm×3050mm. The height of base is 450mm. It is equipped with split door

on fan side of diesel engine. It is equipped with sliding door (width 2000mm) on both ends of

outside wall of 1# house (nearest to wellhead). The rest wall plate can be removable. Main

generators are installed in each 1#, 2#, 3# and 4# generator houses. Air purifying unit and

auxiliary generator sets are installed in the 5# generator house.

The air source house is with integral type. The houses are connected by butt plate. It is equipped

with foot plate on the door of houses. It is equipped with thermal shroud, security caution mark,

sound & light alarming unit for diesel engine (high water temperature, low water level, low oil

pressure).

The generator house consists of base, column, roof, door, sliding door, smoke extraction system

(with water spray extinguishing system), enter & return lines for air, fuel and engine oil, lighting,

pipeline groove, hanging ladder, etc.

The design of air source house is suitable for hoisting and dragging integrally. The column and roof

is connected by bolt. Threaded hole of earth cable is equipped on the generator house sets.

Oil, air and water lines arranges in the base of generator house. The self-sealing hammer union

connection is used for the oil pipelines between generator houses. The dismountable hose is

used for air pipeline and stainless steel valve gate is equipped based on the demand.

Sliding doors can be dismantled in order to operate, repair, ventilate and eliminate heat easily for

the generator sets.

Cable groove is equipped on the roof of generator house. All of the cables shall be arranged in the

cable groove. Rainproof reverse flow port is equipped on the cable groove and cable gard ring

is set on the inlet and outlet.

Four sets of explosive-proof florescent lamps are equipped on the each generator house. One set

shall light in the emergency, battery is the backup power supply for this lamp and it can be

self-charged. Smoke alarming device (1), 8kg fire extinguishers (2) are equipped. Splicing box

(1) is equipped for backup power supply, in which 380V and 220V waterproof socket (one for

each) is equipped.

Engine air inlet is equipped with dust filter.


DC motor

Model and Qty., DC motor

Model and Qty., drawworks motor YZ08 and YZ08A (one for each)

Model and Qty., rotary table motor YZ08 (1)

Model and Qty., drilling pump motor YZ08 and YZ08A (one for each pump)

The rig is equipped with 800KW DC motors (9).

Main technical parameter for DC motorModel YZ08 YZ08ARated power (KW) 800 800Rated voltage (V) 750 750Rated current (A) 1150 1150Rated RPM (r/min) 970 970Rated efficiency (%) 92.7 92.7Rated torque (KN·m) 8.034 8.034Max. current (A) 1600 1600Max. torque (KN·m) 12.2 12.2Max. RPM (r/min) 1500 1500Excitation type Series excitation Series excitationInsulation class H/H H/H

Protection classpositive pressure,

explosive-proof

positive pressure,

explosive-proofCooling type Forced ventilation Forced ventilationStructure feature Single shaft, coil out on right end Single shaft, coil out on left end

JC70D drawworks

Basic parameter

Max. input power 1470kW(2000HP)

Max. fastline pull 485kN

Lifting shift 4+4R

Size, main drum (dia.×L) Φ770×1310mm

Dia., drum wireline Φ38mm（1 1/2”）

Size, main brake disk (dia.×W) Φ1650×76mm

Size, sand drum (dia.×L) Φ400×1320mm

Dia., wireline Φ14.5mm (9/16”)

Auxiliary brake DS70 water cooling electromagnetic

eddy current brake

Drawworks driving flow

The combined two motors drive speed-variable shaft and come into 4 lifting gears by combining

high and low speed clutches with tooth cluth after gear-shifting. The main brake is equipped with

hydraulic disk brake and auxiliary brake is equipped with DS70 water-cooling electromagnetic

eddy current brake.



Double drum drawworks is with integral groove.

Main drum brake is equipped with hydraulic disk brake and electromagnetic eddy current brake. C/

double brake disk, safety and working caliper.

The drawworks consists of input shaft, drive shaft, sand drum shaft, drum shaft, etc.

Two YZ08/YZ08A motors are combined through input shaft of power unit. The two gears come

from 2 rows of chains between input shaft and drive shaft after power concourse, and another

2 gears come from 2 rows of chains between drive shaft and drum shaft. Thus the drawworks

has total 2×2 gears.

Mechanical shift is used on power input shaft and drive shaft. Clutch is used on drive shaft and

drum to shift.

All the controls (such as electrical, air and hydraulic) of drawworks are centralized in the driller’s

room.

Overwinding valve and digital crown saver system is equipped on the drawworks.

Main drum, sand drum, hydraulic disk brake and eddy current brake are installed on one

transportation skid. The motor and drive shaft are installed on one transportation skid.

Auto-driller

Equipped with hydraulic disk brake for auto-drilling.Hydraulic disk brake

Structure

Hydraulic disk brake is the compound unit with normal open working caliper and normal close safety

caliper, equipped with double brake disks. Adjustable cylinder is equipped on the safety caliper,

which can adjust the brake clearance, improve the using efficiency of brake block, prolong the

change cycle and make the install, dismantle and maintain safe and convenient. The floating

cylinder is equipped on the brake caliper, which has the function of auto-compensation. Double

oil source & double return passage & accumulator is equipped for the hydraulic system with

the feature of multi-protection.

The wear resistant treatment shall be performed on the regular connecting position between

brake disk and brake block. Forced wind cooling system is equipped on the brake disk of

drawworks.

Function

Operation brake: It can control the positive pressure of brake disk through operating the control

handle of the brake valve in order to provide the adjustable brake moment, which can realize

the bit feed, WOB adjustment, trip in/out speed, etc.


Emergency brake: Press the red emergency brake button in the emergency. Therefore the operation

caliper and safety caliper can brake in emergency.

Parking brake: Pull down the parking brake handle and the safety caliper brakes to prevent the

hook slipping & falling while the rig stops operation or the driller leaves the driller’s console.

Over-winding protection: While the traveling block rises in the certain position, the overwinding

valve can reverse automatically to realize the emergency brake in order to prevent the traveling

block colliding with crown due to the false operation or any other reasons.

Electric driving control system

System scheme

1) The power of system adopts four 1365kVA 600V 50Hz diesel generating sets. The control

system of generator can realize stability of frequency and voltage, net operation and load

assign homogeneously. Output 600V is powered to DC speed adjustment cabinet and supplied

power to MCC and life electric devices through one 1500kVA 600V/400V 50Hz transformer.

2) The system is equipped with digital control speed regulation device. "The one-to-one” controls

motors of drawworks, rotary table, mud pump and auto-driller to realize stepless speed

regulating and satisfy the driving requirements. The drawworks adopts 800kW high speed DC

motors (2) and auto-driller adopts 45KW VFD motor (1), which can meet the requirements in

emergency.

3) MCC system can perform power distribution for rig 1500kVA 600/400V dry-type transformer

feeding and AC auxiliary machinery, illumination system, etc. The transformer input side is

equipped with 600V 1600A 3Φ 50Hz breaker. Transformer output side is equipped with 400V

2000A 3Φ 50Hz breaker. The auxiliary generator sets is equipped with 400V 600A 3Φ 50Hz

breaker. Breaker at the output side of transformer and breaker of auxiliary generating sets

interlock to supply power supply to MCC. The interface of industry electric network electric drive

rig and 600V 4000A 3Φ 50Hz breaker (its incoming line is industry electric network interface

and its outgoing line connects AC bus row of electric control room) are equipped. The top drive

power supply 600V 1350A 3Φ 50Hz breaker are is equipped, and supply power source for

geological logging device (with small filter) and two 150A interfaces.

4) The system is equipped with SCR houses (2). Its arrangement is reasonable and its installation

is reliable. The overall dimensions can be controlled within 12600 (L) × 2900 (W) × 3050 (H)

5) The system adopts 8MF standard switch cabinet which can supply power, control and protect

the standard electric system of well site. Each cabinet has the function of ground protection

and each control unit has repair lock function. It adopts intelligent soft start device and PLC

control to improve its reliability.


6) The automatic feeding system of main motor can control drilling speed and bit pressure of rig to

realize constant bit pressure automatic feeding within the speed of 0.1-36m/h, modify the set

parameters, monitor parameters of bit pressure, drilling speed, position of traveling block, auto-

control reducing of traveling block and stop, emergency brake in order to prevent drilling string

not well braked, drilling pipe sticking and increase drilling speed and drilling ahead quality.

7) The control system of rig adopts high performance PLC as control centre (use double PLC system

and equip with bypass system. When the double PLC system fails, use the bypass system as

emergency operation). The digital devices shall be made up network through site main wire

control techniques to realize high speed communication among control systems of generator

control unit, speed regulating units (9), intelligent remote control driller’s monitoring, electric,

air and hydraulic control, human-machine interface, automatic feeding, integrated instrument

system, electronic protective device, etc; real time monitoring of upper industry control

machine; store running status of each system and supply trouble diagnostic reports. The upper

industry control machine IPC, automatic grade (PLC), touch screen of driller’s operation stand

pass DeviceNet network connection and PLC, remote-control I/O of driller’s house, I/O rack

pass ControlNet connection, which make up of three-grade network system, which can realize

parameters bidirectional transmission, integrated drilling instrument parameters and display,

all kinds of status presentation and help text display. It can set up a digital, information and

intelligent management platform that will realize remote data transmission, trouble monitoring,

optimizing control and monitoring the whole drilling process. The operation and monitoring of

system has two modes: PLC normal mode and relay emergency mode.

8) The integrated remote control driller’s operation station has functions of rig operation, drilling

parameters real time display, electric system monitoring and display, trouble display and

warning.


Unitized equipmentControl cabinet of diesel generator 4 Synchronization system and power supply cabinet 1 6RA70 DC speed adjustment cabinet (drawworks) 2 6RA70 DC speed adjustment cabinet (rotary table) 1 6RA70 DC speed adjustment cabinet (mud pump) 6 EtherNet、ControlNet、DeviceNet main wire

system1 for each

Power, control cables and splicing of complete set

of DC motors1

Complete set of power, control cable, splicing

piece, bus of SCR house1

Over-pressure protection unit 2MCC cabinet (switch cabinet) 1Combination control cabinet (w/ IPC, PLC, HMI, I/O

plate)1

Speed adjustment handle 1

Intelligent remote-control driller’s operation system

(incl. PLC, HMI)

Screen and

touch screen

are 15″LCD

screen

1

Communication board, expansion board 1, 2 1

Sensor

Drawworks

Motor(2), drum

shaft (1)

3

Auto-driller control system w/independent motor 1Earthing device 1Position auto-control system of traveling block 1Integrated instrument system 1SCR electrical control house (incl. 1500KVA

transformer, air conditioner)2

Repair tools includes: oscilloscope (1), multimeter

(1), ammeter (1), megger (1), hand tools for

electrician (1), phase sequence meter (1),

photoelectricity tachometer (1), infrared

thermometer (1)

1

Main technical parameters of transducer Purpose Motor, drawworks Motor, rotary table Motor, mud pumpRated input voltage (V) 3AC 600 3AC 600 3AC 600Rated input current (A) 946 946 946Rated output voltage (V) 3AC 0～750V 3AC 0～750V 3AC 0～750VRated output current (A) 950 950 950Max. output current (A) 1750 60S 1750 60S 1750 60SLight load current (A) 783 783 783Rated power (kW) 800 800 800Overall dimension

(W×H×D)2100×2000×600 2100×2000×600 2700×2000×600

Flow rate, cooling air

(m3/s)1.45 1.45 1.45

Noise db(A) 85 85 85Protection class IP20 IP20 IP20


Hydraulic power unit (HPU)

It consists of base buffer unit, disk brake, mechanical tools on wellhead, reel, etc.

Technical parameters

System rated flow 120L/Min

System rated pressure 16MPa /25MPa

Motor power 37kW

Effective volume, oil tank 1000L

System oil filtering accuracy 30μm

Power, electrical heater 2×3kW

Overall dimension (max.) 600×1600×1600mm

Technical performances

The working pressures of HPU are 25MPa and 16MPa.

The HPU consists of hydraulic system of mechanical tools on wellhead, hydraulic system of disk

brake, hydraulic system of casing stabbing board, oiling system, heating & cooling system, oil

tank, electrical-control cabinet, instrument, indicator, etc.

Oil tank is placed on the top and pump assy, is placed below. It is equipped with 37KW plunger

pump (1), 5.5KW hydraulic pump of casing stabbing board (1), 0.75KW oil-filling pump (1),

2.2KW hydraulic pumps of disk brake (2), 3KW heaters (2) and 0.75KW wind-cooling unit (1).

Oil tank is fully sealed. The hydraulic valves are imported. Oil lines are equipped with self-

sealing quick connector. It is equipped with electrical oil filling & filtering unit, which has the

function of oiling and filtering oil in the oil tank. It is equipped with explosive-proof electrical

equipments, which can heat the oil in winter and cool in summer. It is equipped with explosive-

proof integration electrical-control cabinet with the function of startup & shutdown of motors

and heater and alarm & display the oil temperature, oil level and oil stain. Driller’s room

The electrical, air and hydraulic control & communication system are all centralized in the driller’s

room, which can monitor and control the rig for the driller. The explosive-proof, anti-corrosive,

shock resistent, heat insulative, noise insulative protections are equipped in the driller’s room

to meet the requirements of drilling conditions.


The disk brake control, pneumatic operation, electrical driving control & touch screen, parameter

indicator, hydraulic operation system, control box for top drive (installation position is reserved),

auto-driller, touch screen for controlling the traveling block, communication system, ect. are

equipped in the driller’s room to form the integrated and intelligent control console. The driller

can process the air control, hydraulic control, electrical drive, drilling parameters, auto-driller,

etc. centrally via PLC on control console, which can control and display the electrical, air,

hydraulic and drilling parameters.

The overall dimension of driller’s rooms is 3000×2400×2500mm (it carried out based on SY 5576-

93 field camp standard of drilling crew) with the stainless steel surface, which is featured with

nice appearance, good structural strength and hoisting rigidity. The driller’s room is installed in

the derrick A-frame on the left side of substructure with shock resistance connection between

driller’s room and substructure. One door is equipped on the left side of driller’s room. The

tempered glass with glue is installed on the driller’s room near the rotary table side to observe

the substructure conveniently. The roof on the driller’s room is inclined and 1 tempered glass

with glue is installed w/protection net. The control stand of drawworls motor is on the right

side of driller’s seat equipped with microphone, horn button and operation handle of hydraulic

cathead. 2 sets of 15” explosive-proof LCD screen are equipped on the operation stand

separately. The left side is display screen of drilling parameters and right side is electrical-

controlled touch screen. The mechanical weight indicator (1) and pump pressure gauge (1) are

installed in front of the driller. The operation stand of top drive is installed between the front of

driller’s seat and walls on top of weight indicator. Dry power fire extinguishers (2) are equipped

in the driller’s room. The anti-static electricity rubber is placed on the floor in the driller’s room.

Explosive-proof horn is installed on the roof. Smoke alarming unit is equipped.

The inner arrangement of driller’s room shall be with the feature of observing, operating, checking

and maintaining conveniently and with good heat preservation and strong durability, which can

meet the HSE requirements, etc.

The display screen of instrument: The parameters are displayed in the left side and the working

condition & operation of power machine is on the right side. The working condition shall be

shifted into: tripping in (incl. connecting single piece, redressing for single piece), tripping in/

out, redressing (long-distance redressing), case running, auxiliary works (mud circulation, etc.).

It can be connected with the interface of mud volume (recharging amount, returning amount,

total recharging amount; mud amount for single tank and increasing amount; total mud amount

and increasing amount).


Two kinds of instrument panel, that is the unit is metric system while displaying Chinese and the unit

is British system while displaying English. Anti-static electricity is equipped on the screen.

The analogous dial and digital display dial are equipped on the instrument, which can display

various parameters, such as total weight, WOB, standpipe pressure, outlet displacement,

stroke (incl. accumulative value), torque of rotary table, RPM of rotary table, hook speed, bit

feeding speed, makeup & breakout torque of cathead, height of traveling block, well depth,

drilling time, mud fluid level, mud volumn, etc. The sensors can meet the relevant explosive-

proof requirement

The monitoring system consists of cam system, displaying system and control system. The

monitoring system can store the video for 8hours. The cam system consists of 5 cams, among

which the drum, crown and shale shaker is fixed-type, racking board and mud pump is rotating-

type. The weatherproof guard is equipped on the cam cover with good sealing performance,

w/antifogging device and can meet the explosive-proof requirements. One 15” LCD monitor is

equipped and installed in the driller’s room in the same of parameter display screen, the angle

can be adjusted based on the habbit of driller. 5 pictures can be displayed on the monitor and

any other picture-combination can be shifted and displayed.Air source and purifying device for air source

Basic parameter

Compressor unit

Model LS12-50HH screw-type compressor

sets (USA SULLAIR)

Air displacement 5.5 m3/min

Exhaust pressure 1MPa

Cooling type air cooling

Matched motor 37kW/380V

Volume, air tank 2×1.5m3+×2.5m3

Cold-starting air compressor electrical/manual-type

(air displacement 0.6m3/min)

Configuration and technical requirements

The air source and decontamination device for air source mainly consists of: 2 sets of electric screw

compressor unit (including automatic switching cabinet), 1 set of freezing type dryer, 1 set of

2.5m3 air reservoir, 2 sets of 1.5m3 air reservoir (base position), 1 set of electrical/manual (air

displacement 0.6m3/min) cold-starting air compressor and complete set of pipelines, valves

etc.


Safety valve, pressure gauge and blow-off valve are installed on air reservoir, convenient for

operation.The air reservoir tank uses the same generator house together with auxiliary

generator.

The flow chart of air source system is designed as following: compressor—dryer—air reservoir—

air system pipelines for drilling rig.

Air supply system

It is composed of 2.5m3 air reservoir (1), 1.5m3 air reservoir (2), pipe groove, air supply line and

complete set of valves etc.

The pipeline control valves use stainless steel ball valve, c/w bypass line for inspecting dryer. The

main air pipeline is 2”. The safety valve outlet of air bottle should be installed under the floor

of generator house.

The rated working pressure of air reservoir is 1MPa, complete with safety valve, check valve,

drainage valve and air pressure gauge. Connecting pipelines are made of galvanized steel

pipes (transitional parts are pressure hoses). The platform is installed on mounting position,

convenient for inspection and maintenance.

Pipe groove consists of oil, water and air supply pipe groove, cable groove of foldable substructure,

brake cooling manifold of drawworks, etc.Substructure (as per API Spec 4F)

Basic parameter

Height, drill floor 10.5m

Clear height, rotary beam 9.0m

Area, substructure ≥132m2(11.27m×12m)

Max. static load, rotary beam 4500kN

Rated load, setback 2200kN

Capacity, setback (114mmDP, 28msetback) 7000m

10”DC 4strings, 8”DC 6strings


The substructure is with rotation & raising structure. The lowest height is 3m.

C/ cushion cylinders (2) for raising and lowering the substructure.

C/ ramp (1set, corrugation-type), emergent slide (1set), tong backup posts (2) and ladders (3sets,

one is on right side, one is at the rear and one is in the front).

C/ fixed position for 5t hydraulic winches (2)

Adjustable backup tong post (2), hydraulic backup tong post (1)


The width of ladder is 800mm w/double handrails. Overlapping position of ladder and drill floor

shall be equipped with safety pin. Ladder inlet shall be equipped with safety chain. The ladder

pedals are made of flat bar.

Guide rail (for hoisting wellhead device) and 40T BOP handling unit (hydraulic driven) are installed

under substructure.

Technical parameter of BOP handling unit

Max. lifting load 2×200＝400kN

Max. lifting travel 4m

Max. lifting speed (double sides) 3.39m/min

Max. lifting speed (single sides) 6.78m/min

Max. lowering speed (double side) 6.51m/min

Max. lowering speed (single side) 13.02m/min

Max. travelling speed (double sides, double directions) 12m/min

Max. working pressure, hydraulic system 16MPa

Max. flow rate, hydraulic system 120L/min

Dia, wireline Ø28mm

Two DP protective stands are installed outside the ramp door, DP buckle connecting. The height

of stand is 1.8m.

Chain guard should be installed when the length between handrails is over 0.2m. The posts on two

sides of door ramp are equipped with 3 chain guards, and the escape slideway is equipped

with 1 chain guards.

Parallel with the rig floor (including rotary table, setback). Rotary table is equipped with anti-slip

pad. Diamond plate is placed on the drill floor. The clearance of each floor plate should be less

than 15mm.

C/ 1.5m3 air tanks (2).

All the hydraulic and air pipelines are installed inside, c/w guard cover.

Mud collecting tank is installed under drill floor, with the purpose of centralized recycling the soil on

the drill floor such as sewage etc. without falling onto the ground.

The substructure is marked with “left” and “right”.

The drill floor shall be flat, convenient for workers to escape.

C/ kick back roller.


The front subbase handrail is made of 80mm×80mm×6mm square steel tube and rear subbase

handrail is made of 50mm×50mm×4mm square steel tube. The handrail height is 1.2m. Toe

board height is 250mm (distance to drill floor is 3~5mm). The handrail is fixed by latch pin and

made permanent installation mark.

It is equipped with manual drum on the substructure, which is used for cleaning rubber hose

Accurate benchmark is installed on the wellhead position of substructure pedestal.

The substructure is marked with API emblem.


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