Workover Rig 250
Overview
The Xiuji 250 Workover Rig is a specialized piece of oilfield equipment engineered for workover operations in mature or damaged wells. It is a critical asset for extending well life and optimizing production. The rig's design emphasizes durability and adaptability to harsh environments, making it a staple in onshore oilfields. Manufactured by leading Chinese heavy machinery companies, it complies with international standards like API (American Petroleum Institute) and is often customized to meet regional operational demands. Its modular assembly allows for rapid deployment and relocation between well sites.
Structure and Working Principle
The rig consists of a mast, drawworks, hydraulic power system, rotary table, and substructure. The mast, typically telescopic or cantilever, provides structural support for hoisting. The drawworks, powered by a diesel engine, controls the movement of the drill string via wire ropes. Hydraulic systems manage precise positioning and pressure adjustments, while the rotary table facilitates tubing rotation. The substructure ensures stability during operations. Advanced models may integrate automated controls for safer and more efficient handling of downhole tools.
Key Features
With a nominal lifting capacity of 250 tons, the Xiuji 250 handles heavy tubing strings and downhole equipment. Its modular design reduces transport costs and setup time, ideal for remote locations. The rig's hydraulic system allows fine-tuned load management, minimizing operational risks. Additional features include anti-collision sensors, remote monitoring interfaces, and corrosion-resistant coatings for prolonged service life. Some variants offer skid-mounted or truck-mounted configurations, enhancing mobility across uneven terrains.
Application Areas
Primarily deployed in onshore oilfields, the rig performs workover tasks such as replacing damaged tubing, removing sand or scale deposits, and reinstalling artificial lift systems. It is also used for well abandonment procedures and remedial cementing to seal leaks. Beyond conventional oil wells, adapted models serve geothermal and CO2 injection projects. Its versatility makes it a preferred choice for service companies operating in regions with aging well infrastructure.
Maintenance and Precautions
Regular maintenance includes lubricating moving parts, inspecting wire ropes for wear, and testing hydraulic fluid purity. Operators must adhere to load limits and avoid abrupt maneuvers to prevent equipment stress. Safety protocols mandate the use of personal protective equipment (PPE) and emergency shutdown systems. Environmental precautions include spill containment measures for hydraulic fluids and proper waste disposal during well intervention.
B2B Procurement Guide
When procuring a Xiuji 250 rig, buyers should verify the manufacturer's track record in oilfield machinery and request API or ISO certification documents. Key considerations include after-sales support availability, spare part lead times, and compatibility with existing wellsite equipment. Leasing options may be viable for short-term projects, while long-term operators should invest in training programs for crews. Price negotiations should account for optional features like automated controls or enhanced mobility packages.
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