large-scale equipment

Technical Specifications (Representative Range – Full Product Line)

Equipment Category	Key Parameter	Specifications
Offshore Drilling Rig (SJF450DB)	Max hook load	4,500 kN (1,000,000 lb)
	Drawworks power	1,470 kW (2,000 hp) AC VFD
	Drive system	AC Variable Frequency Drive
Offshore Workover Rig (SHXJ225)	Max hook load	2,250 kN (506,000 lb)
	Top drive	2,250 kN AC VFD (standard)
	Workover depth (2-7/8" tubing)	Up to 6,000 m
Cementing Unit (Skid‑mounted)	Max pressure	35–100 MPa (5,000–14,500 psi)
	Max displacement	1,300–4,200 L/min
	Configuration	Truck / Skid / Trailer
Fracturing Package	Horsepower range	2,000–5,000 HP (electric or diesel)
High‑Pressure Manifold	Pressure rating	Up to 105 MPa (15,000 psi)
9000m Drilling Rig (ZJ90DB)	Drilling depth	9,000 m (29,500 ft)
	Max drilled	9,270 m field proven
Certifications	API / ISO / HSE	API 4F, 7K, 8C, 7‑1; ISO 9001; ISO 14001; OHSAS 18001

Applications – Where Our Large-Scale Offshore Equipment Is Used

Application	Equipment Type	Typical Deployment
Deepwater fixed platform drilling	SJF Series drilling rigs	South China Sea, Bohai Bay
Mature field workover campaigns	SHXJ Series workover rigs	Bohai Bay, Middle East, Southeast Asia
Offshore cementing & primary well cementing	Cementing units (skid/truck)	Global – Africa, Middle East, Americas
Subsea well stimulation	Fracturing packages (electric)	Middle East shale, offshore China
High-pressure flow control	Manifolds, fracturing pumps	All offshore drilling & production
Ultra‑deep exploration drilling	9000m class rigs	China inland, Kuwait
Satellite platform intervention	Light workover rigs (HXJ series)	Remote platforms with limited power

Recent project milestones:

• Kuwait: ZJ90DB 9000m drilling rig – first of six units deployed, core components 100% domestic, optimized for 50°C+ desert conditions

• Africa: Batch export of coiled tubing units with SjpetroDAS intelligent data acquisition system – overseas commissioning completed

• Saudi Arabia: 2032mm ultra‑large diameter steel pipes for seawater desalination – 100% pass rate

• North America: First automated cement mixing skid exported – breakthrough in automated mixing technology

OEM Customized Solutions – Engineered to Your Platform

No two offshore projects are identical. We don’t ship catalog equipment and hope it fits. Every large-scale equipment order starts with a discussion of your specific constraints: crane capacity, deck space, power availability, well program, and environmental conditions.

What we customize:

Your Constraint	Our Customization
Limited crane capacity	Split modules down to 5‑8 tons (even on 2,250 kN rigs)
Tight deck space	Narrow skid base (as little as 2.2m wide), foldable work decks
No platform power	Hydraulic drive (diesel‑hydraulic) or add generator skid
High‑temperature environment	Cooling system upgrades, heat‑resistant coatings, increased ventilation
Sour service (H₂S)	TSA coating, 316L stainless steel hydraulics, explosion‑proof everything
Remote operation	4G/5G remote control with cameras – we’ve done up to 50km from shore
Special well spacing	Extended skid beams (up to 5m stroke) to reach offset wells
Non‑standard platform type	Concrete deck mounting, jack‑up tie‑down points, floating production system integration

How our customization process works:

Step 1 – Discovery: You send us platform deck plan, crane capacity curve, well program, power availability.

Step 2 – Engineering study: Within 2 weeks, our 30+ offshore specialists produce a preliminary module split, deck load report, and 3D layout.

Step 3 – Joint review: Online or on‑site review of layout, adjustments as needed.

Step 4 – Final engineering & manufacturing: Full traceability, in‑house fabrication.

Step 5 – Full load testing: Every major assembly proof‑tested to 110% of rated capacity at our 50,000m² assembly yard. You’re invited to witness.

Step 6 – Shipping & offshore commissioning: Our field service team supervises rig‑up and runs the first job with your crew.

Why Choose SJ Petroleum Machinery for Large-Scale Offshore Equipment?

Reason	What You Actually Gain
Sinopec Group backing	Core equipment manufacturing enterprise of China Petrochemical Corporation – not a startup, not a trading company. Financial stability, group‑wide technical resources, and a track record of delivering major offshore projects.
70+ years of manufacturing heritage	Founded in 1941. Started petroleum machinery production in 1980. More than 200 national patents, recognized as National Enterprise Technology Center and National Manufacturing Single Champion Demonstration Enterprise.
Over 200 product types under one roof	Four major categories, 12 families – drilling rigs, workover units, cementing equipment, fracturing packages, high‑pressure manifolds, mud pumps, drawworks. No finger‑pointing between multiple suppliers.
API certified – fully traceable	API 4F, 7K, 8C, 7‑1; ISO 9001; ISO 14001; OHSAS 18001. First enterprise in China to obtain API SPEC 16D logo.
Global delivery track record	Exported to Kuwait, Saudi Arabia, UAE, Canada, Mexico, Kazakhstan, Turkmenistan, Syria, Cuba, and across Africa.
International market growth	H1 2025 international new orders increased by 15% year‑on‑year, reaching RMB 1.21 billion. Cooperation agreements with Saudi Aramco, ADNOC, Total, Sonatrach.
Field service from people who’ve run these machines	Our offshore supervisors are former workover and drilling engineers. They speak "rig hand” English, not textbook English. 24/7 remote support.
One‑stop integrated solutions	We don’t just ship a rig. We supply the complete equipment package – drilling rig, workover unit, cementing skid, fracturing package, high‑pressure manifolds, mud pumps, drawworks, BOP handling, and mud systems.

Frequently Asked Questions (FAQ)

Q1: What makes SJ different from other offshore equipment manufacturers?

A: Three things. First, Sinopec Group backing – we’re a core manufacturing enterprise of China’s largest oil & gas group, not a standalone fabricator. Second, full product line – drilling, workover, cementing, fracturing, high‑pressure manifolds – all from one supplier. Third, 70+ years of continuous manufacturing history, with over 200 national patents.

Q2: Do you have experience with deepwater (≥500m) offshore installations?

A: Yes – our equipment operates in the South China Sea (water depths exceeding 200m) and is designed for fixed platforms in moderate water depths. For floating production systems (semi‑submersibles, FPSOs), we supply sub‑components (manifolds, pumps, cementing units).

Q3: What API certifications do you hold?

A: API 4F (drilling and well servicing structures), 7K (drilling and well servicing equipment), 8C (hoisting equipment), and 7‑1 (specification for rotary drill stem elements). We were the first enterprise in China to obtain the right to use the API SPEC 16D logo.

Q4: Can you supply a complete offshore equipment package (drilling rig + workover unit + cementing + fracturing) for a new platform?

A: Absolutely. We’re equipped to supply integrated equipment packages for entire offshore fields. This is one of our core strengths – single‑source procurement, single‑point warranty, coordinated delivery timelines.

Q5: How long does it take to manufacture a large-scale drilling rig?

A: Standard 9,000m class drilling rig: 9‑12 months from order to shipment. Workover rigs: 5‑9 months depending on model and customization. Cementing and fracturing units: 6‑8 months. All lead times subject to customization level.

Q6: Do you provide offshore installation and commissioning?

A: Yes – every major equipment order includes on‑site supervision of rig‑up, full functional testing, and first‑job assistance. Typical on‑site duration: 2‑6 weeks depending on equipment scale and project complexity.

Q7: What training do you provide for local crews?

A: Standard: 1‑3 weeks on‑site training for up to 10 crew members (classroom + hands‑on). For AC VFD and top drive equipment, we also offer simulator‑based training at our Jingzhou facility. Training materials include full operator manuals, maintenance guides, and troubleshooting flowcharts.

Q8: What warranty comes with large-scale equipment?

A: 18 months from shipment or 12 months from commissioning (whichever occurs first). Major components (top drives, AC VFD drives, hydraulic pumps, fracturing pumps) carry 24 months. Extended warranty options available.

Q9: Do you have case studies or reference lists I can review?

A: Yes – we can provide anonymized case studies and operational data. For qualified buyers under NDA, we can share a list of reference fields and operators.

Q10: How do I get a budget quote for a large-scale offshore equipment package?

A: Email offshore@sjpetro.com with:

• Project scope (new platform development, workover campaign, etc.)

• Platform deck plan and crane capacity (if known)

• Well depth and target formation data

• Power availability (voltage/kVA)

• Preferred equipment types or let us recommend

We’ll respond within 5‑10 working days with a budget range, recommended equipment mix, and technical questionnaire.

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