Drilling Equipment

Technical Specifications

SJ Petro offers a complete line of drilling rigs covering drilling depths from 1,000m to 9,000m. Below are the key specifications for our core models:

Model	Drilling Depth (4-1/2″ DP)	Max. Static Hook Load	Engine	Transmission	Carrier Drive	Mast Height
ZJ10	1,000m (3,000 ft)	900 kN (200,000 lbs)	CAT C9	Allison 4700OFS	8×6	29-31m
ZJ20	2,000m (6,000 ft)	1,580 kN (350,000 lbs)	CAT C18	Allison S6610HR	12×8	35m
ZJ30	3,000m (10,000 ft)	1,800 kN (400,000 lbs)	2×CAT C15	2×Allison S6610HR	14×8	36-38m
ZJ40	4,000m (13,000 ft)	2,250 kN (500,000 lbs)	2×CAT C18	2×Allison M6620AR	14×10	38m
XJ450	1,500m (4,920 ft)*	1,125 kN (252,900 lbs)	CAT C13	Allison 4700 OFS	10×8	34m
XJ650	—	1,470 kN (330,500 lbs)	CAT C18	Allison S6610HR	12×8	35m
BigEasy BE550	Custom	Custom	AC VFD Drive	AC VFD	Trailer-mounted	Custom
BigEasy BE770	Custom	Custom	AC VFD Drive	AC VFD	Trailer-mounted	Custom

ZJ40 Truck-Mounted Drilling Rig – Detailed Specifications:

Parameter	Specification
Drilling Depth	4,000m (9,840ft, 4-1/2″ DP)
Max. Hook Load	2,250 kN
Engine	2×CAT C18, 630 hp each
Transmission	2×Allison M6620AR
Carrier Drive	14×10
Traveling System	6×5
Wireline Diameter	Φ32mm
Mast Height	38m
Overall Dimensions	22.2 × 3.1 × 3m
Weight	76,000kg
Max. Travel Speed	45km/h

XJ450 Drilling & Workover Rig – Detailed Specifications:

Parameter	Specification
Workover Depth	4,500m (2-7/8″ DP)
Servicing Depth	5,500m (2-7/8″ EUE Tubing)
Drilling Depth	1,500m (with rotary table)
Rated Hook Load	800 kN
Max. Hook Load	1,125 kN
Engine	CAT C13, 440 hp
Transmission	Allison 4700 OFS
Carrier Drive	10×8
Mast Height	34m
Weight	55,000kg
Max. Travel Speed	45km/h

Applications

SJ Petro's drilling equipment is deployed across a broad spectrum of oilfield operations:

• Oil & Gas Well Drilling – Complete drilling operations for oil and gas wells from 1,000m to 9,000m depth

• Coalbed Methane (CBM) Well Drilling – Specialized CBM drilling rigs from 1,000m to 2,000m

• Cluster Well Drilling – Suitable for cluster well drilling operations in land and offshore environments

• Workover & Drilling Dual-Purpose Operations – XJ series rigs equipped with rotary table, swivel and drilling tools can perform as mobile drilling rigs

• Desert Operations – Full trailerized desert rigs and 2,000m truck/trailer-mounted rigs for desert environments

• Arctic Operations – Low-temperature rigs and 5,000m wheel-rail rigs for extreme cold conditions

• Mountain, Jungle & Island Operations – Helicopter-transportable 3,000m rigs with lightweight modules

• Swamp & Tidal Flat Operations – Specialized configurations for challenging terrain

• Offshore Platform Operations – Offshore drilling and production equipment for platform deployment

Product Types

SJ Petro offers drilling equipment in a comprehensive range of configurations:

By Mounting Configuration:

1. Truck-Mounted Drilling Rigs (ZJ Series) – Self-propelled on heavy-duty chassis, powered by Caterpillar engines with Allison transmissions. Ideal for rapid mobilization and frequent rig moves.

2. Trailer-Mounted Drilling Rigs – Towable configurations for flexible deployment. Full trailerized desert rigs available.

3. Modularized Drilling Rigs – Optimized for transport and rapid assembly. Available in 1,000-9,000m series with multiple drive types.

4. Big Easy Drilling Rigs (BE550, BE770) – New conceptual AC VFD drilling rigs featuring special module, trailer-mounted structure and fast transportation without a crane.

5. Special Drilling Rigs – Including arctic rigs, wheel-rail rigs, helicopter rigs, and desert rigs.

By Power Configuration:

6. Diesel-Driven Drilling Rigs – CAT engines with Allison hydraulic transmissions.

7. Electric-Driven Drilling Rigs – VFD digital control, SCR control, and dynamic braking.

8. Combined Power Drilling Rigs – Flexible hybrid operation.

By Application:

9. Oil & Gas Drilling Rigs – Complete range from 1,000m to 9,000m.

10. CBM Drilling Rigs – 1,000m to 2,000m for coalbed methane development.

11. Drilling & Workover Rigs (XJ Series) – Dual-purpose rigs for both drilling and workover operations.

12. Offshore Drilling Rigs – Offshore drilling and production equipment for platform deployment.

OEM & Customization Solutions

Every operation presents unique challenges, and SJ Petro's engineering team delivers tailored solutions through comprehensive OEM and customization capabilities:

• Custom Configuration – Choose truck-mounted, trailer-mounted, modularized, or special configurations based on your operational requirements and site constraints

• Drilling Depth Optimization – Select from 1,000m to 9,000m drilling depth based on your well requirements

• Power System Selection – Choose from diesel, electric, or combined power configurations

• Engine and Transmission – Select from CAT C9, C13, C15, C18, or dual-engine configurations with Allison transmissions

• Climate Engineering – Customize for desert, arctic, mountain, jungle, swamp, or tropical conditions

• Mast Height Options – Choose mast heights from 29m to 38m based on your operational requirements

• Drawworks Configuration – Single-shaft or multi-shaft drawworks with band or hydraulic disc brakes

• Rotary Table Integration – Complete rotary system for drilling operations

• Well Control Integration – Complete BOPE packages integrated with the rig control system

• Solid Control Integration – Complete mud circulating equipment and purification systems

• Turnkey System Integration – From basic drilling units to fully integrated packages with complete well control and solids control systems

• Certification – Arrange API, DNV, ABS, or other certifications for international or offshore operations

Why Choose SJ Petro?

World's Famous Manufacturing Base

SJ Petro is the world’s famous manufacturing base for petroleum drilling and production equipment. As one of China Top 500 manufacturers, we rank 2nd on the list of China Top 10 Petroleum Drilling and Production Equipment Manufacturers and are rated AAA by China Petrochemical Industry and Banks.

Over 40 Years of Drilling Equipment Expertise

SJ Petro has been manufacturing petroleum drilling and production equipment since the end of the 1970s. We have accumulated leading research and development strength and comparative advantage at home and abroad. Our Technical Center has 314 persons dedicated to product development and process research.

Complete In-House Manufacturing

SJ Petro has a complete production facility including welding, forging, casting, riveting, heat-treatment, machining, assembling and commissioning, and post-treatment, with more than 2,100 sets of precision equipment. We have established seven production lines for drawworks, gear boxes, cylinders, masts, high pressure manifolds, plunger pumps and post treatment, and three assembly lines for drilling rigs, workover rigs and cementing and fracturing equipment.

Annual Production Capacity:

• 100 drilling rigs

• 100 workover rigs

• 120 cementing units

• 80 fracturing equipment

• Over 700 pumps

• 150,000 high pressure manifolds

50,000 m² Rig Assembly Yard

SJ Petro possesses a rig assembly yard covering an area of 50,000 square meters, with 24 positions for rigging-up and two offshore rig commissioning sites (four rig positions), where a test of 750 tons can be performed and 12 drilling or workover rigs can be assembled and commissioned simultaneously.

API-Certified Quality

SJ Petro holds API, ISO9001 , and HSE management system certifications. We are authorized to use API monograms on products under API 4F, 7K, 8C, 6A and 16C. Our manufacturing process can be supervised by customers and certified by any third party inspectors.

Industry-Leading Innovation

SJ Petro has completed DNC, OA and CAD/CAPP/PDM/ERP industrial information systems. We have multiple intellectual properties and have successfully developed many core equipment and tools. Our drilling rigs have been awarded as "China Top Brand” .

Proven Global Track Record

SJ Petro drilling rigs have been deployed in more than 10 countries worldwide, including the Middle East, the Arctic Circle, Indonesia, and the United States. Recent deliveries of deep well drilling machines to Kuwait mark a breakthrough into the Middle East's high-end market.

One-Stop Solution Provider

Beyond manufacturing, we offer equipment inspection, testing, and major overhaul services. From initial design to field service and spare parts supply, SJ Petro delivers complete oil and gas exploration and production equipment solutions.

Frequently Asked Questions

Q: What is the drilling depth range of SJ Petro drilling rigs?

A: SJ Petro offers drilling rigs covering drilling depths from 1,000m to 9,000m. We also offer CBM drilling rigs from 1,000m to 2,000m.

Q: What mounting configurations are available?

A: SJ Petro drilling rigs are available in truck-mounted, trailer-mounted, modularized, Big Easy, and special configurations.

Q: What power options are available?

A: We offer diesel engine drive (Caterpillar engines with Allison transmissions), electric drive (VFD digital control, SCR control), and combined power packs.

Q: What is the Big Easy drilling rig?

A: The Big Easy rig (BE550 and BE770) is a new conceptual AC VFD drilling rig jointly developed by SJ and LOADMASTER, featuring special module, trailer-mounted structure and fast transportation without a crane.

Q: What is the maximum hook load of SJ Petro drilling rigs?

A: SJ Petro drilling rigs cover maximum static hook loads from 900 kN to 2,250 kN.

Q: Can SJ Petro drilling rigs operate in extreme environments?

A: Yes. SJ Petro offers specialized configurations for desert, arctic, mountain, jungle, swamp, tidal flat, and offshore operations.

Q: Are SJ Petro products API certified?

A: Yes. SJ Petro holds API, ISO9001 , and HSE management system certifications. We are authorized to use API monograms on products under API 4F, 7K, 8C, 6A and 16C.

Q: Can the XJ series drilling & workover rig perform drilling operations?

A: Yes. When equipped with a rotary table, swivel and drilling tools, XJ series rigs can perform as mobile drilling rigs.

Q: Do you offer OEM or customized solutions?

A: Absolutely. We offer comprehensive customization including mounting configuration, drilling depth, power system, climate engineering, mast height, drawworks configuration, and turnkey system integration.

Q: What is your manufacturing capacity?

A: SJ Petro produces 100 drilling rigs annually, along with 100 workover rigs, 120 cementing units, 80 fracturing equipment, over 700 pumps, and 150,000 high pressure manifolds.

Q: What is the size of your rig assembly yard?

A: SJ Petro possesses a rig assembly yard covering an area of 50,000 square meters with 24 positions for rigging-up.

Q: Do you provide after-sales support and spare parts?

A: Yes. We offer comprehensive after-sales support including spare parts supply, equipment inspection, testing, and major overhaul services.

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