About Us

SJ Petroleum Machinery

An established oilfield equipment manufacturer engaged in R&D, manufacturing, and service for onshore and offshore oil and gas exploration and development equipment.

Request Company Profile View Manufacturing Capability

1941Founded with more than 80 years of history

R&DOil and gas equipment engineering capability

APIAPI Q1 and related product certification focus

GlobalProduct and service networks for oil and gas markets

Company Profile

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, the company is located in Jingzhou, Hubei Province, a historic and cultural city in China.

The company is primarily engaged in the research, development, manufacturing, and service of onshore and offshore oil and gas exploration and development equipment. Its main product scope includes drilling equipment, cementing equipment, workover equipment, fracturing equipment, coiled tubing units, snubbing units, offshore equipment, and high-pressure fluid control products.

SJ also expands integrated equipment services, helping customers build practical equipment solutions for oil and gas exploration, development, production enhancement, and lifecycle support.

Core Capability

For global procurement and engineering buyers, About Us must prove that SJ is not a catalog-style trading website, but a manufacturer with product, engineering, quality, and service depth.

Product Engineering

Focused on petroleum drilling and production equipment, including cementing, fracturing, workover, offshore, high-pressure fluid control, and integrated equipment solutions.

Manufacturing Capability

Supports complete equipment manufacturing and lifecycle service for professional oilfield buyers, contractors, operators, and project teams.

Service Support

Provides product selection support, technical consultation, troubleshooting, spare parts matching, and long-term customer service.

Quality System And Industry Recognition

SJ Petroleum Machinery presents its quality system, HSE management, API Q1 reference and related product certification pathway as part of supplier qualification review. Buyers can request certificate images and supporting documents for project evaluation.

Quality Systems	ISO 9001, HSE, API Q1, and related product certifications are referenced in the company profile company profile records.
Enterprise Recognition	Company profile records reference honors including National High-tech Enterprise, National Enterprise Technology Center, and other quality and manufacturing recognitions.
Product Recognition	The Siji brand is associated in the company profile records with cementing trucks, workover rigs, drilling rigs, offshore workover rigs, and fracturing units.
Evidence Review	Certification, award and scope-sensitive claims are managed with evidence-first publishing, so buyers can request the supporting documents during qualification review.

Service Philosophy, Mission, And Values

SJ's service philosophy emphasizes product quality, accurate spare parts matching, technical support, and long-term cooperation with customers and partners.

Quality First Product quality is treated as a foundation for operation reliability and equipment lifecycle value.

Technical Support Support covers product selection, technical consultation, troubleshooting, and practical field problems.

Long-Term Partnership The company aims to build stable cooperation with customers and partners through service and product optimization.

Continuous Improvement Values include focus, excellence, responsibility, collaboration, transparency, and forward-looking improvement.

Need Company Qualification Or Technical Documents?

Contact SJ for company profile, product scope, certification information, catalog, datasheets, or technical inquiry support.

Supplier Qualification Information

For international B2B procurement, an About page should work as a supplier qualification page. SJ Petroleum Machinery identifies the company background, manufacturing orientation, product families, service capability and document request path so buyers can decide whether to start a formal evaluation. The company history beginning in 1941, the Sinopec Oilfield Equipment Corporation relationship and the Jingzhou, Hubei operating background provide context for buyer due diligence.

Procurement teams can use this page to prepare a supplier profile request, while engineering teams can continue into manufacturing, quality and product pages for equipment-specific review. For sensitive claims such as certificates, awards, applicable standards or product scope, the recommended buyer workflow is to request supporting documents and confirm the scope against the intended project or procurement package.

Qualification Area	Buyer Review Point
Company Identity	Full company name, operating history, parent organization relationship and location background.
Product Scope	Cementing equipment, fracturing and stimulation packages, pumps, downhole tools, offshore equipment and service parts.
Quality Evidence	Quality system, HSE management, API Q1 reference, inspection documents and certificate request path.
Engineering Support	Technical consultation, drawing review, equipment selection, spare parts matching and service support.

Trust And Review Process

International oilfield buyers often need a structured review before placing a formal order. The review may include company qualification, product scope, technical datasheet request, applicable standard discussion, packing and delivery requirements, and spare parts availability. This page connects those questions to the proper inquiry path.

Procurement Review

Buyers can request company profile, product catalog, certificate-related information and export support details for internal supplier approval.

Engineering Review

Engineering teams can continue to product pages or send drawings, operating conditions and standards through the technical inquiry workflow.

Lifecycle Support

Service and parts pages help buyers discuss spare parts lists, compatibility review, maintenance planning and documentation needs.

How SJ Supports International Evaluation

International equipment buyers usually compare suppliers across technical fit, documentation readiness, delivery communication and after-sales support. SJ's website structure supports that evaluation by connecting company background, product scope, manufacturing capability, quality information, service parts and technical inquiry workflows.

When a buyer needs proof for internal approval, the recommended route is to request the relevant document package rather than relying on a short website statement. Depending on project scope, that package may include a company profile, product catalog, datasheet, drawing, inspection-related information, packing details or spare parts list.

SJ Petroleum Machinery contact and inquiry support