R&D, Manufacturing, And Service For Oilfield Equipment
SJ Petroleum Machinery Co., Ltd. was founded in 1941 and has a history of more than 80 years. As a wholly-owned subsidiary of Sinopec Oilfield Equipment Corporation, it is located in Jingzhou, Hubei Province. The company is engaged in the R&D, manufacturing, and service of onshore and offshore oil and gas exploration and development equipment.
Its main products include drilling equipment, cementing equipment, workover equipment, fracturing equipment, coiled tubing units, snubbing units, offshore equipment, and high-pressure fluid control products. The company also provides integrated equipment services to help buyers match the right configuration to the operating condition.
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For global procurement and engineering buyers, the site must prove capability, quality, and delivery discipline.
Our site structure is built to communicate practical manufacturing competence, clear product scope, and a procurement-ready support system.
Product Engineering
Focused on product design and technical packaging, including cementing, fracturing, offshore, drilling, and well-service equipment solutions.
Manufacturing Capability
Supports complete equipment manufacturing with assembly, testing, inspection, proven processes, and project execution.
Service Support
Provides product selection support, technical consultation, troubleshooting, spare parts matching, and long-term after-sales support.
Reputation is supported by systems, certifications, and evidence.
SJ Petroleum Machinery has obtained ISO 9001 quality system certification, HSE certification, API Q1 certification, and related product certifications. The company has also been recognized as a National High-tech Enterprise, National Enterprise Technology Center, National Advanced Enterprise in Quality Management, and a National Manufacturing Champion Enterprise.
| Quality System | ISO 9001, HSE, API Q1, and product certification support |
|---|---|
| Enterprise Recognition | National High-tech Enterprise, National Enterprise Technology Center, and quality management awards |
| Product Recognition | Cementing trucks, workover rigs, drilling rigs, offshore workover rigs, and fracturing units |
| Evidence Review | Buyer-side qualification review with technical files, certificates, and project references |
Service quality, technical support, and long-term cooperation shape the way we work.
We keep a direct focus on product reliability, delivery commitments, and practical support for global buyers.
Contact us for company profile, product scope, certification evidence, or technical support.
International buyers often review supplier identity, product scope, and technical support before starting procurement.
For international equipment procurement, the evaluation usually combines company identity, product scope, certification, engineering support, and documentation readiness. This section is organized to help procurement teams quickly review the evidence they need.
| Qualification Area | Company identity, product scope, quality system, and engineering support |
|---|---|
| Buyer Review Point | Verify name, address, product family, technical capacity, and export readiness |
| Documentation | Company profile, certificates, product sheets, and technical contact information |
| Support Scope | Technical consultation, product matching, troubleshooting, and after-sales support |
International buyers need a structured review before placing a formal order.
The page structure follows the same logic buyers use during qualification: company review, engineering review, and lifecycle support.
Procurement Review
Evaluate supplier identity, product scope, and qualification evidence before technical discussion.
Engineering Review
Confirm operating conditions, configuration needs, and documentation fit for the project.
Lifecycle Support
Align installation, spare parts, troubleshooting, and after-sales service with the buyer timeline.
We present qualification evidence in a way that is easier to review, compare, and approve.
International evaluation usually combines qualification checks, technical alignment, and supply reliability. The information on this page is organized to help buyers move from initial review to technical inquiry without friction.
When a buyer needs more detail, the next step is a direct enquiry for company profile, product scope, certification documents, and technical support information.

