SJ PETROLEUM MACHINERY CO.
SJ Petroleum Machinery manufactures petroleum drilling and production equipment, from drilling and workover rigs to cementing, fracturing and high-pressure fluid control systems, backed by large-scale production and in-house R&D.
Est. 1941#1, SJ Road, Jingzhou Hubei, China
APIISO 9001HSE management system
About SJ PETROLEUM MACHINERY CO.
SJ Petroleum Machinery Co. is a state-owned enterprise under Sinopec Group focused on the development and manufacturing of petroleum drilling and production equipment. Its portfolio covers drilling rigs, workover equipment, cementing and fracturing equipment, offshore drilling and production equipment, and high-pressure fluid control products.
Established in 1941 in Lanzhou, Gansu and relocated to Jingzhou, Hubei in 1969, the company has manufactured petroleum drilling and production equipment since the end of the 1970s. It operates industrial information systems including DNC, OA, and CAD/CAPP/PDM/ERP to support engineering and manufacturing execution.
The company runs a dedicated R&D and technical center in Hubei and is authorized to set up a post-doctoral research station. Its technical organization includes multiple research institutes covering drilling/workover, cementing/fracturing, materials processing, electric control, and high-pressure manifold development, enabling complete solutions for customers at home and abroad.
With comprehensive facilities spanning welding, forging, casting, heat treatment, machining, assembly, commissioning, and post-treatment, SJ Petroleum Machinery supports large-scale output and extensive testing capabilities. It operates multiple specialized production and assembly lines, maintains a large rig assembly yard, and provides pressure-rated manifold and fluid control products with broad interchangeability and in-factory inspection and testing before delivery.
Company Overview
- Ownership
- State-owned enterprise under Sinopec Group
Industry Position
China Critical Technological Equipment Nationalization BaseNational Hi-tech EnterpriseChina Top 500 manufacturerRanked 2nd in China Top 10 Petroleum Drilling and Production Equipment ManufacturersAAA rated by China Petrochemical Industry and Banks
Company History
Key Milestones
1941Established in Lanzhou, Gansu
Founded in Lanzhou, Gansu.
1969Relocated to Jingzhou, Hubei
Moved operations to Jingzhou, Hubei.
End of 1970sBegan manufacturing petroleum drilling & production equipment
Started large-scale manufacturing of drilling and production equipment.
Products
- Product Portfolio Scale
- 200 product models across four major categories and 12 series
Main Product Categories
Drilling rigsWorkover equipmentCementing equipmentFracturing equipmentOffshore drilling and production equipmentHigh-pressure fluid control products
R&D and Engineering
- Product Development Team Size
- 314 people
R&D Capability
The company operates a petroleum drilling and production equipment R&D center and a certified technical center in Hubei. It maintains a complete R&D system and is authorized to set up a post-doctoral research station, supporting end-to-end engineering from design through validation.
R&D Organization
- Science and Technology Management Department
- Research Institute for Drilling and Workover Equipment
- Research Institute for Cementing and Fracturing Equipment
- Material Process Institute
- Electric Control Institute (Electric Control Branch)
- HP Manifold Research Room (Manifold Branch)
Manufacturing Capability
- Precision Equipment Inventory
- More than 2,100 sets of precision equipment
Core Manufacturing Processes
WeldingForgingCastingRivetingHeat treatmentMachiningAssemblyCommissioningPost-treatment
Production Lines
- Drawworks production line
- Gear box production line
- Cylinder production line
- Mast production line
- High-pressure manifold production line
- Plunger pump production line
- Post-treatment production line
- Drilling rig assembly line
- Workover rig assembly line
- Cementing and fracturing equipment assembly line
Capacity Highlights
Annual Supply Capacity
100units/yearDrilling rigs
100units/yearWorkover rigs
120units/yearCementing units
80units/yearFracturing equipment
700units/yearPumps
150,000units/yearHigh-pressure manifolds
Facilities
Rig Assembly Yard
50,000sqmRig assembly yard area
24positionsRigging-up positions
Offshore Rig Commissioning Sites
2sitesOffshore rig commissioning sites
4positionsOffshore rig positions
Testing and Validation
- Assembly and Commissioning Capability
- Up to 12 drilling or workover rigs can be assembled and commissioned simultaneously
- Test Capacity
- A 750-ton test can be performed
High-Pressure Fluid Control
- Pressure Ratings
- Pressure ratings from 21 MPa to 140 MPa
- Available Sizes
- Sizes from 2" to 5"
Quality and Management Systems
Operational Systems
DNCOACAD/CAPP/PDM/ERP industrial information systemsEnterprise legal adviser systemInternal control system
Customer Support
Customer and Third-Party Inspection Support
Customer representative offices are established to facilitate customer supervision and third-party inspection, supporting transparent quality verification throughout delivery preparation.
Contact Information
- Address
- #1, SJ Road, Jingzhou Hubei, China
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