SXJ750(XJ1800) Workover rig working

Technical Specifications

Applications

The SXJ750 (XJ1800) Workover Rig is deployed across a broad spectrum of demanding oilfield operations:

• Ultra-Deep Well Workover – Workover operations in wells up to 8,000 meters depth

• Heavy-Duty Workover Operations – Major well interventions, tubing replacement, and complex downhole repairs

• Deep Well Servicing & Maintenance – Routine and major maintenance for deep production wells

• Oil & Water Well Drilling – Complete drilling operations for oil and water wells

• Coalbed Methane Wells – Drilling and workover for CBM development

• Casing Deepening Drilling – Deepening drilling inside production well casing

• Oil Testing & Fishing – Precision retrieval of downhole tools and equipment in deep wells

• Open-Hole Logging – Opening window logging operations

• Mobile Drilling Operations – Shallow-to-medium depth drilling (up to 3,000m) when equipped with rotary table

Product Types

SJ Petro offers the SXJ750 (XJ1800) in multiple configurations to match various operational requirements:

1. Standard Diesel Drive SXJ750 – Conventional diesel engine drive with dual CAT engines and Allison transmissions for operational redundancy.

2. Electric Drive SXJ750 (Grid-Powered) – Lower emissions and reduced operating costs for environmentally sensitive areas.

3. Double Engine SXJ750 – Standard configuration with dual CAT engines providing 806 hp total installed power.

4. Single Drum SXJ750 – Standard drawworks configuration for workover operations.

5. Double Drum SXJ750 – Enhanced configuration with additional sand line capability.

6. Desert SXJ750 Workover Rig – Specialized configuration for extreme desert conditions.

7. Low-Temperature SXJ750 Workover Rig – Engineered for arctic and sub-arctic operations.

8. Offshore Skid-Mounted SXJ750 – Platform-ready configuration for offshore operations.

OEM & Customization Solutions

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

• Customized Power Configurations – Choose from diesel, electric, dual-drive, or grid-powered configurations to match your site infrastructure and operational priorities.

• Custom Chassis & Mobility – We adapt chassis specifications and drive configurations (12×8 or 14×8) to suit your specific terrain and transport requirements.

• Mast Height Options – Choose mast heights of 36m or 38m based on your operational requirements.

• Drum Configuration – Select single drum or double drum configurations based on your operational needs.

• Drill Floor Customization – Drill floor height (6m) and table size (6×7 or 7.5×7.4m) can be customized.

• Rotary Table & Transmission – Drill floor, rotary table, and transmission systems can be selected or customized as required.

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

• Climate-Specific Engineering – We offer specialized configurations for desert, arctic, tropical, and offshore environments.

• Automation Package – Optional power catwalk, hydraulic pipe box, hydraulic elevated driller's cabin, and iron roughneck.

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

• Spare Parts & Aftermarket Support – All supporting equipment and spare parts are available separately, ensuring long-term maintainability.

Why Choose SJ Petro?

Heavy-Duty Workover Expertise

SJ Petro has been designing and manufacturing heavy-duty workover rigs for over four decades. The SXJ750 (XJ1800) represents the pinnacle of our engineering capability—delivering 1800 kN hook load and 8,000 m workover depth in a mobile, self-propelled package.

Proven Track Record – Complete Product Range

SJ Petro offers a complete line of workover rigs with maximum static loads ranging from 300 kN to 2250 kN and workover depths up to 9,000 meters. Our product portfolio includes XJ150, XJ250, XJ350, XJ450, XJ550, XJ650, XJ1000, XJ1200, and XJ1800 series.

World-Class Manufacturing Facility

We possess 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.

Industry-Leading R&D Capability

SJ Petro is a key enterprise in China's petroleum drilling and production equipment manufacturing industry. We were among the first Chinese manufacturers to achieve API/ISO9001 international dual certification in 2000. Our designs and manufacturing processes comply with API Spec Q1, 4F, 7K, 8C, and RP500 standards.

Global Deployment & Offshore Expertise

In 1998, SJ successfully developed 158t offshore drilling and workover rigs for two different petroleum platforms in Bohai Bay. Our workover rigs have been exported to more than 30 countries and regions worldwide.

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 maximum hook load of the SXJ750 workover rig?

A: The SXJ750 delivers a maximum static hook load of 1800 kN (405,000 lbs) with a rated hook load of 1500 kN.

Q: What is the maximum workover depth?

A: The SXJ750 achieves a workover depth of 8,000 meters with 2-7/8″ drill pipe and 6,500 meters with 3-1/2″ drill pipe.

Q: Can the SXJ750 perform drilling operations?

A: Yes. When equipped with a rotary table, swivel, and drilling tools, the SXJ750 can perform as a mobile drilling rig up to 3,000 meters depth with 114mm drill pipe.

Q: What type of engines does the rig use?

A: The SXJ750 features a dual-engine compound power system with imported Caterpillar (CAT) engines matched with Allison transmissions. Total installed power is 806 hp (2 × 403 hp).

Q: What is the chassis configuration?

A: The SXJ750 is built on a 14×8 or 12×8 heavy-duty special oilfield chassis with a maximum travel speed of 45 km/h.

Q: What is the mast height?

A: The rig features a double-section hydraulic telescopic mast available in 36 meters or 38 meters height with a tilt angle of 3.3°.

Q: What braking system does the drawworks use?

A: The main brake utilizes a belt brake or disc brake, while the auxiliary brake employs an EATON WCB324 disc auxiliary brake with reliable performance and uniform underspeed control.

Q: What is the total vehicle mass?

A: The total vehicle mass is 75,000 kg.

Q: Are your products API certified?

A: Yes. SJ Petro holds API, ISO9001, and HSE management system certifications. We were among the first Chinese manufacturers to achieve API/ISO9001 international dual certification.

Q: Do you offer OEM or customized solutions?

A: Absolutely. We offer comprehensive customization including power configuration, chassis specifications, mast height, drum configuration, drill floor customization, well control integration, and climate-specific engineering.

Q: What is your manufacturing capacity and lead time?

A: We have the largest workover equipment manufacturing base in China with a 50,000 m² rig assembly yard and 24 rig-up positions. Lead times vary by configuration—contact our sales team for specific project timelines.

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.

Tag: Heavy duty workover equipment | Workover services | Workover solutions | Workover specifications