Technical Specifications
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Parameter
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XJ1100 Three-Section Mast Workover Rig
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Maximum Static Hook Load
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1125 kN (113 metric tons / 253,000 lbs)
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Rated Hook Load
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800 kN (80 metric tons)
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Workover Depth (2-7/8″ EUE Tubing)
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5,500 m (18,045 ft)
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Drilling Depth (114mm Drill Pipe)
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1,500 m (4,920 ft)
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Mast Type
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Three-section hydraulic telescoping
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Mast Working Height
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31 m (102 ft)
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Mast Tilt Angle
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3.5° (adjusted by lead screw)
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Mast Design Standard
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API Spec 4F
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Travelling System
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5×4
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Wire Rope Diameter
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φ26 mm
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Hook Hoisting Speed
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0.11–1.15 m/s
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Maximum Fast Rope Pulling Force
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210 kN
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Main Brake Type
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Belt brake or disc brake
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Auxiliary Brake Type
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EATON WCB224 disc brake
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Chassis Drive Configuration
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8×4 or 10×8
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Maximum Travel Speed
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45 km/h
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Minimum Ground Clearance
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300 mm
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Minimum Turning Radius
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17 m
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Total Vehicle Mass
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48,000 kg
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Installed Power
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392 hp
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Overall Dimensions (L×W×H)
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18,500 × 2,550 × 4,000 mm
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Applicable Well Depth
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Up to 5,500 m
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Operating Temperature
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-35°C to +50°C
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Applications
The XJ1100 Three-Section Mast Workover Rig is deployed across a broad spectrum of demanding oilfield operations:
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Deep Well Workover – Workover operations in wells up to 5,500 meters depth
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Oil and Water Well Workover – Tubing replacement, pump repairs, and production optimization
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Oil and Water Well Drilling – Complete drilling operations
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Coalbed Methane Well Drilling – Drilling and workover for CBM development
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Casing Deepening Drilling – Deepening drilling inside production well casing
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Window Milling and Sidetracking – Opening window logging and drilling operations
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Tall BOPE Stack Operations – Wells requiring multiple rams, spools, and well control equipment
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Complex Fishing Operations – Retrieval of downhole tools and equipment requiring overhead clearance
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Milling and Section Milling – Operations requiring extended tool strings
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Coiled Tubing Support – Overhead clearance for coiled tubing injector heads
The XJ1100 is the preferred choice for operators who need maximum working height, superior reach, and heavy-lift capacity in a mobile, self-propelled package.
*[Insert Image: XJ1100 three-section mast workover rig in operation at wellsite with BOPE stack]*
Product Types
SJ Petro offers the XJ1100 Three-Section Mast Workover Rig in multiple configurations:
1. Standard Diesel Drive XJ1100 – Conventional diesel engine drive with 392 hp installed power and proven reliability.
2. Electric Drive XJ1100 (Grid-Powered) – Lower emissions and reduced operating costs for environmentally sensitive areas.
3. Dual-Drive XJ1100 (Oil-Electric) – Flexible hybrid configuration combining diesel and electric power for operational flexibility and redundancy.
4. No-Guyline XJ1100 – Eliminates the need for guyline anchors—ideal for congested wellsites, urban areas, desert, and marsh terrain.
5. Automated XJ1100 Workover Rig – Equipped with automation devices and integrated control systems for reduced crew requirements.
6. Desert XJ1100 Workover Rig – Specialized configuration for extreme desert conditions with enhanced cooling and sand-resistant seals.
7. Low-Temperature XJ1100 Workover Rig – Engineered for arctic and sub-arctic operations with cold-weather materials and heating systems.
8. Mountain XJ1100 Workover Rig – Enhanced gradeability and compact footprint for mountainous terrain operations.
OEM & Customization Solutions
Every wellsite presents unique challenges, and SJ Petro's engineering team delivers tailored solutions through our comprehensive OEM and customization capabilities:
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Custom Mast Configuration – Choose three-section or alternative mast configurations based on working height and transport requirements.
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Mast Height Options – Working height can be optimized for your specific BOPE stack and operational requirements.
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Custom Chassis & Mobility – Adapt chassis specifications and drive configurations (8×4 or 10×8) to suit your terrain and transport requirements.
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Power System Selection – Choose from diesel, electric, dual-drive, or grid-powered configurations.
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Drum Configuration – Single drum standard; double drum available for enhanced sand line capability.
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Automation Package – Optional automation equipment for reduced crew requirements and enhanced safety.
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Well Control Integration – Complete BOPE packages integrated with the rig control system.
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Climate-Specific Engineering – Desert, low-temperature, mountain, and tropical configurations available.
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No-Guyline Configuration – Eliminates guyline anchors for congested wellsites and complex terrain.
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Turnkey System Integration – From basic workover units to fully integrated packages with complete well control and solids control systems.
Why Choose SJ Petro?
Three-Section Mast Engineering Excellence
SJ Petro has been at the forefront of workover rig design for over four decades. Our three-section mast technology delivers superior working height and reach while maintaining a compact transport profile—a critical advantage for operators facing tall BOPE stacks and complex downhole operations. The three-section design offers shorter transport length, more convenient installation, and better road transport performance compared to conventional two-section masts.
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, and XJ1200 series.
Industry-Leading Innovation
SJ Petro has developed various fast-moving, high-efficiency, energy-saving new products to meet different environmental and operational requirements, including:
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Dual-drum workover rigs
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No-guyline workover rigs
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Oil-electric dual-drive workover rigs
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Grid-electric energy storage workover rigs
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LNG workover rigs
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Desert workover rigs
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Low-temperature workover rigs
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Mountain workover rigs
API-Certified Quality
SJ Petro holds API (American Petroleum Institute) , ISO9001 , and HSE management system certifications. Our mast designs comply with API Spec 4F, and our manufacturing processes meet API Spec Q1, 7K, 8C, and RP500 standards.
Global Deployment
SJ Petro workover rigs have been exported to more than 30 countries and regions worldwide, with customers including Sinopec, CNPC, CNOOC, and international oilfield service companies.
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 advantage of a three-section mast over a two-section mast?
A: A three-section mast provides significantly greater working height than a two-section mast while maintaining a compact transport profile. The three-section design offers shorter transport length, more convenient and safer installation, and better road transport performance.
Q: What is the maximum working height of the XJ1100 three-section mast?
A: The three-section mast delivers a working height of 31 meters (approximately 102 feet).
Q: What is the maximum hook load of the XJ1100?
A: The XJ1100 delivers a maximum static hook load of 1125 kN (approximately 113 metric tons / 253,000 lbs) with a rated hook load of 800 kN.
Q: What is the maximum workover depth?
A: The XJ1100 achieves a workover depth of 5,500 meters with 2-7/8″ EUE tubing.
Q: Can the XJ1100 perform drilling operations?
A: Yes. When equipped with a rotary table, swivel, and drilling tools, the XJ1100 can perform as a mobile drilling rig up to 1,500 meters depth with 114mm drill pipe.
Q: How is the mast raised and telescoped?
A: The mast is raised and telescoped by hydraulic cylinders, eliminating the need for large cranes or complex rigging at the wellsite.
Q: What is the chassis drive configuration?
A: The XJ1100 is available with 8×4 or 10×8 drive configurations.
Q: What power options are available?
A: We offer diesel engine drive, electric drive (grid-powered), and oil-electric dual-drive configurations.
Q: Can the XJ1100 be configured without guy lines?
A: Yes. We offer a no-guyline configuration that eliminates the need for guyline anchors—ideal for congested wellsites, urban areas, desert, and marsh terrain.
Q: Are your products API certified?
A: Yes. SJ Petro holds API certifications and our mast designs comply with API Spec 4F. Our manufacturing processes meet API Spec Q1, 7K, 8C, and RP500 standards.
Q: Do you offer OEM or customized solutions?
A: Absolutely. We offer comprehensive customization including mast configuration, chassis specification, power system, automation packages, and climate-specific engineering.
Q: What is the total vehicle mass?
A: The total vehicle mass is 48,000 kg.
Q: What is your manufacturing capacity and lead time?
A: We have the largest workover equipment manufacturing base in China with comprehensive production capabilities. 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: Wellhead automation solutions | Wellhead automation specifications | Wellhead automation technology | Wellhead automation system
