I. Product Brief

Complete‑set special workover equipment for oilfield operations, covering two main models: truck‑mounted Workover Rig and mobile Oil‑Skimming Machine. Integrated with hoisting, lifting, power transmission and intelligent control systems, the equipment features outstanding mobility, large lifting capacity, stable operation and wide adaptability. It can perform core operations including oilfield workover, pump inspection, fishing, drifting and intermittent oil‑skimming, serving as the key main‑force equipment for stable production enhancement and wellbore restoration of oil‑gas fields.

II. Promotional Slogan

Truck‑mounted intelligent workover & oil‑skimming equipment. High load capacity, superior stability and fast relocation. One‑stop solution for oilfield wellbore maintenance, downhole fishing and intermittent oil production.

III. General Product Overview

Workover rigs and oil‑skimming machines are special core equipment for oil‑gas wellbore maintenance, fault repair and production restoration of low‑efficiency wells. Adopting heavy‑duty truck‑mounted integrated structure, the whole unit delivers sufficient power and strong lifting performance with stable control. The equipment is mainly used for down‑hole operation and restoration of oil‑gas wells, addressing various well conditions such as pump sticking, string falling, downhole debris, production decline and intermittent oil output. It is widely applicable to vertical wells, directional wells, shallow and medium‑deep wells in onshore oilfields.

Boasting excellent mobility, the complete set of equipment enables fast relocation across well sites. Replacing traditional fixed operation equipment, it greatly improves oilfield operation and maintenance efficiency. Capable of routine workover maintenance as well as oil‑skimming and stimulation for low‑efficiency and idle wells, it adapts to harsh field conditions including gobi, desert and extreme temperatures. It acts as critical complete‑set hardware for oilfield cost reduction, stable production and output increase.

IV. Introduction to Core Individual Units

1. Workover Rig (Main‑Force Equipment for Oilfield Workover Operations)

Integrated truck‑mounted workover equipment. Built on heavy‑duty special chassis and equipped with high‑power power system, winch lifting system, mast raising system and intelligent control system, it is core hardware for conventional and major workover operations in oil‑gas fields. It independently fulfills full‑process workover procedures such as running and pulling tubing & sucker rods, pump inspection & replacement, downhole tool fishing, well drifting & sand washing, casing repair and wellbore cleaning.

The mast rises and falls smoothly with large lifting load and reliable braking performance, suitable for conventional workover and minor major‑repair jobs for shallow‑to‑medium‑deep oil‑gas wells. Featuring high automation, easy operation and flexible relocation, it supports high‑frequency and large‑range well‑site maintenance work. It effectively resolves oil‑well shutdown caused by failures, abnormal working conditions and string jamming to sustain stable well production.

2. Oil‑Skimming Machine (Special‑Purpose Stimulation Equipment for Low‑Efficiency / Idle Wells)

Mobile intelligent oil‑skimming equipment developed for low‑productivity wells, intermittent wells, marginal wells and old idle wells. Specialized in residual oil recovery, intermittent oil‑skimming and wellbore accumulated oil production. With lightweight structure and flexible operation, it requires no long‑term on‑site installation of conventional pumping units and implements roving operations for oil‑skimming at multiple well points in rotation.

Adapted to old oil‑gas wells with low productivity, discontinuous oil output and long‑term shutdown, it effectively recovers residual crude oil in wellbores through periodic pulling and pumping‑skimming, revitalizes idle well resources and realizes production increase for old wells at low cost. Simple to operate, low‑energy‑consumption and low‑failure‑rate, it fits large‑scale revitalization of massive low‑efficiency wells in oilfields.

V. Core Product Advantages

1. Heavy‑Duty Stability and Powerful Operation Capacity

The full product line is equipped with high‑power power transmission system. The winch delivers sufficient lifting torque with sensitive and reliable braking system for smooth lifting and high load‑bearing capacity. It easily handles heavy‑load assignments such as running‑pulling pipe strings and downhole fishing, offering high operation stability and strong adaptability to downhole conditions for diverse conventional and complex workover processes.

2. Truck‑Mounted Mobility for Efficient & Cost‑Saving Relocation

Adopting integrated truck‑mounted design, no on‑site assembly or disassembly is required. It features fine road‑running performance and excellent cross‑country capability for rapid transfer between well sites. Compared with fixed‑type equipment, it drastically cuts relocation, installation and commissioning time, shortens single‑well operation cycle and raises multi‑well alternating‑operation efficiency, greatly lowering oilfield O&M costs.

3. Intelligent Control for Safe and Worry‑Free Construction

Fitted with centralized intelligent control system for visualized operation parameters, simple manipulation and clear gear positions. Multiple safety mechanisms including overload protection, limit protection, emergency brake and fall‑prevention protection mitigate down‑hole operation risks, avoiding hazards such as equipment overloading, mast abnormality and pipe‑string slipping to guarantee construction safety for both personnel and hardware.

4. Multi‑Purpose Design Covering Full‑Scenario Operations

Workover rigs focus on wellbore maintenance, fault repair and downhole fishing to secure normal oil‑well production. Oil‑skimming machines specialize in residual oil recovery and intermittent production for low‑efficiency and idle wells. Complementary deployment of the two equipment covers full‑scenario demands including routine oilfield maintenance, emergency fault repair, old‑well stimulation and idle‑well revitalization.

5. Robust Structure for Reliable Performance under Field Conditions

Optimized high‑strength whole‑machine structure resists bumping and vibration, delivering dust‑proof, anti‑corrosion and extreme‑temperature‑resistant performance for harsh well‑site environments such as field sand‑storm, desert, severe cold and high temperature. Mature‑process core components adopt modular layout for convenient maintenance and high availability to sustain long‑term stable continuous operation.

VI. General Technical Parameters (Standard Configuration｜Customization Supported)

Customizable heavy‑tonnage, cold‑climate‑reinforced and intelligently‑upgraded versions available according to well depth, load capacity and working‑condition requirements

VII. Application Scenarios

• Routine Oilfield Workover Maintenance: Workover rigs conduct regular pump inspection, pipe‑string maintenance, wellbore cleaning and fault repair for oil‑gas wells to sustain stable production of active wells.

• Down‑hole Fault Fishing Operations: Professional fishing, repair and drifting work for down‑hole failures such as debris, pump sticking and pipe‑string falling to restore well conditions rapidly.

• Stimulation for Old Low‑Efficiency Wells: Roving oil‑skimming by oil‑skimming machines for production‑declining and intermittently‑producing old wells recovers residual crude oil and revitalizes idle oil‑gas resources at low cost.

• Reutilization of Marginal Wells and Shut‑in Wells: Mobile oil‑skimming realizes flexible exploitation for marginal wells with low output and no long‑term exploitation value, reducing resource waste.

• Field Construction under Harsh Well‑Site Conditions: Adaptable to severe field environments including desert, gobi and extreme temperatures. Fast relocation and stable operation satisfy large‑scale oilfield operation‑and‑maintenance demands.

VIII. Product Summary

This series of complete‑set workover rig and oil‑skimming machine equipment features core strengths of heavy‑duty stability, mobile high‑efficiency, safety & energy‑saving and full‑scenario adaptability. It forms an integrated oil‑field wellbore operation‑and‑maintenance solution of “maintenance for stable production + oil‑skimming for production increase”. Workover rigs guarantee stable‑production maintenance for active wells while oil‑skimming machines tap low‑efficiency production capacity of idle wells. Complementary coordination of the two sets meets full‑life‑cycle operation requirements of oilfields. With strong working‑condition adaptability, low O&M cost and high construction efficiency, the equipment provides reliable special‑set hardware support for oil‑gas fields to cut costs, boost output and maximize resource utilization.