DRILLING & WORKOVER RIGS

C1 Water supplies complete range of onshore drilling rigs, offshore drilling modules, workover rigs and related drilling package, with drilling depth of 1000m to 12000m (350HP to 4000HP). Driving mode of oil drilling rig includes diesel direct drive, DC electric drive, AC variable frequency electric drive, mechanical – electric compound drive and mechanical transmission. We provide customized comprehensive solutions with complete package of the drilling/workover rigs, rig components, spare parts and related technical services.

AC Variable - frequency Motor Driven Drilling Rigs

Adopt modern world advanced VFD full digital control technology, and can adjust lift speed, speed of rotary table and of mud pump as required so as to improve drill effectiveness.
Driven by wide band and high power motor, realizing step less speed of draw works, rotary table and mud pump during the whole process.
The lifting way adopts double lift or rotating lift structure (height of drill floor are 7.5m, 9m and 10.5m), the rig can be lifted by draw works or Hydraulic draw works power to exacted position.
The draw works brake adopts a braking way of a combination of hydraulic disc brake and Energy consumed braking by AC variable – frequency motor to ensure performance;
The rotary table adopts combined drive or independent drive, the actuating device is below the drill flow, thus the drill floor is with large operation space.The drill rig is realized intelligent driller control as well as data storage, printing and remote transmission by applying PLC
Automatic bit feed, real – time monitoring of run in and put out of hole and drilling conditions
Drilling rig can be equipped with monolithic movement device to meet the moving requirement between wells by clustered drilling
The design of main parts is in compliance with related API provisions

Base Parameters of AC variable-frequency motor driven drilling rig

Model	ZJ40/2250DB	ZJ50/3150DB	ZJ70/4500DB	ZJ80/5850DB	ZJ90/6750DB	ZJ120/9000DB
Nominal Depth Range m	2500-4000	3500-5000	4500-7000	5000-8000	6000-9000	12000
Max. hook load rating kN	2250	3150	4500	5850	6750	9000
Number Of line for traveling block	10	12	12	14	14	14
Dia. Of wireline mm(in)	32(1(1/4))	35(1(3/8))	38(1(1/2))	42(1(5/8))	45(1(3/4))	48
Sheaves O.D. Of traveling block mm(in)	1120(44)	1270(50)	1524(60)	1524(60)	1524(60)	1828(44)
I.D. of swivel stem mm(in)	75(3)	75(3)	75(3)	101.6(4)	101.6(4)	101.6(4)
Transmission of drawworks	1 Stepless speed regulation	1 Stepless speed regulation	2 Stepless speed regulation	2 Stepless speed regulation	2 Stepless speed regulation	1 Stepless speed regulation
Dia. of Opening mm(in)	520.7(20(1/2)) and 698.5(27(1/2))	698.5(27(1/2)) and 952.5(37(1/2))	952.5(37(1/2))	952.5(37(1/2))	952.5(37(1/2)) and 1257.3(49(1/2))	952.5(37(1/2)) and 1257.3(49(1/2))
Rotery Speed	1 Stepless speed regulation	1(2) Stepless speed regulation	1(2) Stepless speed regulation	2 Stepless speed regulation	2 Stepless speed regulation	1 Stepless speed regulation
Power Of mood Pump kW(hp)	956(1300)	956(1300) and 1176(1600)	1176(1600)	1176(1600)	1176(1600) and 1620(2200)	1620(2200)
Woking Height of mast m(ft)	43(142)	45(147)	45(147) and 48(157)	46(151)	48(157)	52(171)
Height of Drill floor m(ft)	7.5(25)	7.5(25) and 9(30)	10.5(35) and 10.5(35)	10.5(35)	12(40)	12(40)
Clear Height Under Rotary Table Beam m(ft)	6.26(20.5)	6.26(20.5) and 7.6(25)	9(25) and 9(29.2)	9(30)	10(33)	10(33)

DC Motor Driven (SCR) Drilling Rigs

Adopt advanced and mature AC-SCR-DC electric transmission technology.
The lifting way adopts double lift or rotating lift structure (height of drill floor are 7.5m, 9m and 10.5m), the rig can be lifted by drawworks or Hydraulic draw works power to expected position.
The main brake of draw works is a hydraulic disc brake, it can also adopt band brake; the auxiliary brake uses electromagnetic eddy current brake or EATON brake.
The turntable adopts combined drive or independent drive, the actuating device is below the drill flow, thus the drill floor is with large operation space.
By applying PLC, the whole drilling process is able to realize logic control, monitoring and protection as well as data storage, printing and remote transmission.
The drawworks is equipped with automatic bit feed unit.
Drilling rig can be equipped with monolithic movement device to meet the moving requirement between wells by clustered drilling.
The design of main parts is in compliance with related API provisions.

Base Parameters of DC motor driven drilling rig

Model	ZJ40/2250D	ZJ50/3150D	ZJ70/4500D	ZJ80/5850D	ZJ90/6750D
Nominal Depth Range m	2500-4000	3500-5000	4500-7000	5000-8000	6000-9000
Max. hook load rating kN	2250	3150	4500	5850	6750
Number Of line for traveling block	10	12	12	14	14
Dia. Of wireline mm(in)	32(1(1/4))	35(1(3/8))	38(1(1/2))	42(1(5/8))	45(1(3/4))
Sheaves O.D. Of traveling block mm(in)	1120(44)	1270(50)	1524(60)	1524(60)	1524(60)
I.D. of swivel stem mm(in)	75(3)	75(3)	75(3)	101.6(4)	101.6(4)
Transmission of drawworks	4	4	4	4	4
Dia. of Opening mm(in)	520.7(20(1/2)) and 698.5(27(1/2))	698.5(27(1/2)) and 952.5(37(1/2))	952.5(37(1/2))	952.5(37(1/2))	952.5(37(1/2)) and 1257.3(49(1/2))
Rotery Speed	2	2	2	2	2
Power Of mood Pump kW(hp)	956(1300)	956(1300) and 1176(1600)	1176(1600)	1176(1600)	1176(1600) and 1620(2200)
Woking Height of mast m(ft)	43(142)	45(147)	45(147) and 48(157)	46(151)	48(157)
Height of Drill floor m(ft)	7.5(25)	7.5(25) and 9(30)	10.5(35) and 10.5(35)	10.5(35)	12(40)
Clear Height Under Rotary Table Beam m(ft)	6.26(20.5)	6.26(20.5) and 7.6(25)	9(25) and 9(29.2)	9(30)	10(33)
D-driven with D.C motors

Mechanical Driven Drilling Rigs

The drilling rig is driven by diesel engines, hydraulic coupling& chain compound box or diesel engines, reducers& narrow V-belt, which provides smooth mechanical power to the draw works. A number of hoisting speeds and rotary speeds are available.
The draw works is installed at ground level. Power is transmitted through bevel gear and universal shaft to the equipment on the drill floor. It is reliable in driving and easy in assembly/disassembly.
The draw works (40 and 50 model) utilize air clutch for shifting gears, which are suitable for remote control.

Either band brake or hydraulic disc brake can be considered as main brake of draw works and either an eddy current brake or EATON brake as auxiliary brake.
The chain driven rig is driven by the integral enclosed compound chain box (or narrow V-belt) and coupling. During any rig moves, it is unnecessary to dismantle the chains(or narrow V-belt) for fast installation.
The mast is of open-front type without guy line. It is integrally raised and installed at ground level.
The substructure is of a box-on-box type. It is simple in structure and easy to install. It is applicable for mounting B.O.P installations. The rotary table and the transmission unit are flush with the rig floor. The drill floor is flat and the operational area is large.

Base Parameters of Mechanical driven drilling rig

Model	ZJ20/1350L(J)	ZJ30/1700L(J)	ZJ40/2250L(J)	ZJ50/3150L(J)	ZJ70/4500L
Nominal Depth Range m	1200-2000	1600-3000	2500-4000	3500-5000	4500-7000
Max. hook load rating kN	1350	1700	2250	3150	4500
Number Of line for traveling block	8	10	10	12	12
Dia. Of wireline mm(in)	29(1(1/8))	32(1(1/4))	32(1(1/4))	35(1(3/8))	38(1(1/2))
Sheaves O.D. Of traveling block mm(in)	915	915	1120	1270	1524
I.D. of swivel stem mm(in)	64	64	75	75	75
Rated Power of drawworks	400	550	735	1100	1470
Transmission of drawworks	3 forward 1 reverse	3 forward 1 reverse	4 forward 2 reverse and 6 forward 2 reverse	4 forward 2 reverse and 6 forward 2 reverse	6 forward 2 reverse
Dia. of rotary table opening mm(in)	445(17(1/2))	520.7(20(1/2))	698.5(27(1/2))	952.5(37(1/2))	952.5(37(1/2))
Rotery Speed	3 forward 1 reverse	3 forward 1 reverse	4 forward 2 reverse and 6 forward 2 reverse	4 forward 2 reverse and 6 forward 2 reverse	6 forward 2 reverse
Power Of mood Pump kW(hp)	735(1000)	735(1000)	956(1300)	1176(1600)	1176(1600)
Number Of Transmission Unit	2	2	3	3	4
Woking Height of mast m(ft)	31.5	31.5	43	45	45
Height of Drill floor m(ft)	4.5	4.5	6	7.5	9
Clear Height Under Rotary Beam m(ft)	3.54	3.54	4.76	6.26	7.6
L-Chain Compound Transmission, J-Narrow V-belt Compound Transmission

Truck Mounted Drilling Rigs

Adopting double engine compound power system, the truck mounted drilling rig is a truck-type rig, which is able to operate with either of the two engines or twin-engine incorporation. The gear parallel auxiliary box is reliable in transmission and easy to be maintained. The auxiliary braking system of draw works adopts air control water cooling plate and reinforced chassis. The load distribution is reasonable, and the real axle is air suspension trailing axles.
The power transmission system uses Caterpillar engine and ALLISON hydraulic mechanical transmission case with reliable performance and low failure rate.
Centralized control of electric, air and hydraulic system, main components adopts international brand.

The main drawworks drum is with an integral type of lebus rope groove, main brake uses band brake or hydraulic disc brake, the auxiliary brake is as air control water cooling plate brake, air clamping brake or electromagnetic eddy current brake, etc. The bailing drum can be provided.
The derrick is two-section flexible mast type, realizing lifting and expansion by utilizing oil cylinder.
The drilling floor is a folding type floor, lifting by hoist with stable structure and convenient installation.
The power is taken off by auxiliary box from vehicle-bone engine for the operation of chassis adopting overloading wide axle with good cross-country and travel performance, low section tire, high strength girder, steering mechanism assisted by hydraulic power, dual braking system, which is suitable for complex conditions of oil field with long service life.
By modular and humanized design, the rig includes new driving cab, embedded step ladder, automatic lock pin of derrick, crown block and centralized lubricating system of drawworks as well as electric, air and hydraulic centralized control of engine hood designed according to different climate and district, the main components are imported.
The top drive system can be chosen.

Base Parameters of Truck mounted drilling rig

Model	ZJ30/1700LCZ	ZJ40/2250LCZ
Drill Pipe(4-1/2") m\|ft	3000(9840)	4000(13120)
Drill Pipe(3-1/2") m\|ft	6500(21325)	7500(24606)
Max. hook load kN	1700(381260)	2250(505800)
Number Of line for traveling block	8	10
Dia. Of wireline mm(in)	29(1(1/8"))	32(1(1/4"))
Model of power unit x quantity	Caterpiller C-15*2	Caterpiller C-18*2
Hydraulic Gear Box	Allison M5620AR*2	Allison M6620AR*2
Carrier	14*8	14*10
Drawworks Model	JC30	JC40
Drawworks Rated Power(hp)	750	1000
Mast Height m	38	39.3
Substructure Type	Foldable	Foldable
Substructure Height m(ft)	20(6.1)	22(6.7)
Dia. of Rotery Table Opening mm(in)	698.5(27(1/2"))	698.5(27(1/2"))

550HP Trailer Mounted Electric Workover Rigs

World’s leading supercapacitor energy storage technology to optimize the power system;
Advanced automatic control technology and system power compensation to realize the high efficiency and stable tripping operation;
Break through the power distribution lack in the existing well site, all performance indicators are better than other types of electric workover rigs;
The whole unit has the technical advantages of energy saving, environmental protection, safety and reliability;
Save 72% of operating energy costs, noise on site is only 80.7dBA.

Trailerized Loads–Fast Moving Rigs

The Rig can be designed for fast moving as per customer requirement.
The Rig loads including the generators, mud pumps, mud tanks etc. can be on trimerized as per requirement.
Easy handling, fast and efficient rig moves.
Suitable chassis design, number of axles and tyres based on the operating conditions.

Offshore Drilling Module

Provide complete drilling module package for the Offshore Rigs
Including Derrick and Substructure-basic design, detailed design and steel structure/derrick load analysis;
Offshore drilling equipment including tools and accessories.

Rig Control System

Electronic Control System–Main Functions

Precisely control the rotation speed of the diesel engine and the voltage of a generator.
When multiple sets of generators are combined in the power grid, power is uniformly distributed. Overloading of a machine set can be avoided by power limitation.
Multiple protections (under-voltage, over-voltage, over-current, short-circuit, under-frequency, over-frequency and reverse power) for the diesel generator are realized.
A broad speed regulation range and precise revolution speed control, which can fully satisfy the requirements of various manufacturing machines in drilling technology.
Control detection and remote communication are carried out by adopting PLC technology.
Dynamic braking of the draw works can be realized.
Skid resistance of the belt pulley is realized.
Zero-position linkage protection is realized.
Electromagnetic eddy current brake is realized.
Automatic bit feeding is realized.
Anti-collision of the traveling block is realized.
Integrated drilling instrument is provided.

DC SCR Control System

A DC transmission system has the functions of controlling an SCR element and rectifying constant-frequency AC power into continuously adjustable DC current. The rectification device is a three-phase complete-controlled rectifier bridge, which is isolated with an AC grid through the circuit breaker. The output of the rectifier bridge is used for supplying power for the DC motor through an assigned contactor, so that speed control and torque control of the drawworks, the mud pump, the rotary table or a top drive, stepless speed regulation is realized, and the transmission requirement is met.

Control System of Diesel Generator

The control system of the diesel generator has the functions of controlling the diesel generating set and enabling it to output AC voltage of 600V and 50HZ/60HZ. The system can be divided into an analog generating control system and a full-digital generating control system.
The analog generating control system comprises a circuit breaker, a synchronization device, an AC control unit, a power limiting circuit, a grounding fault detection circuit etc.
The full-digital generating control system mainly consists of a generator control module, a generator speed controller, a voltage demodulator and other parts.

AC Variable-frequency Control System of Rig

Based on a SIEMENS S120 frequency converter or an ABB-ACS800 frequency converter, the rectification art adopts the control system of a public DC busbar plus an inverter, and it has the characteristics of excellent speed regulation performance,strong overload capacity, high reliability, high integration level, strong immunity from interference, simple and convenient operation, easiness in maintenance etc.