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Coal-Rock Gas Hydraulic Pump System

This system is specially designed for coal-rock gas drainage with a burial depth ≥2500m. Adopting a hydraulically driven downhole pump, it can efficiently discharge wellbore effusion, formation water and sand-bearing fluids, reduce bottom-hole back pressure, improve reservoir seepage conditions, and enhance gas well recovery efficiency. The equipment is high-temperature resistant, high-pressure resistant, sand-proof and wear-resistant, which can solve the problems of deep well eccentric wear, corrosion and scaling, coal powder blockage and other difficulties. Equipped with an intelligent control system, it realizes real-time parameter monitoring, remote regulation and fault early warning, constructing an intelligent drainage system of "surface drive - downhole execution - remote control". It can operate continuously in an unmanned manner, providing core equipment support for the efficient development of deep coalbed methane.

    Structural Features

    The coal-rock gas hydraulic pump system is tailor-made for deep coal-rock gas reservoirs with a burial depth of ≥2500m. It adopts full-chain specialized structural optimization targeting the complex working conditions of deep wells and industry pain points. Featuring a compact overall layout and high integration, it delivers strong adaptability to harsh operating environments, high operational reliability, and full-process intelligent management and control capabilities.

    Hydraulic Split Drive Structure

    Adopting a split layout of surface-driven pump station and downhole liquid discharge pump, the power transmission is stable and reliable. It is well applicable to deep wells, deviated wells and horizontal wells with a depth above 3500 m, and greatly reduces the difficulty of downhole installation and maintenance as well as the failure rate.

    High-strength Damage-resistant Main Structure

    Core flow passage components adopt an enhanced design with high temperature resistance, high pressure resistance, sand resistance and wear resistance. They can resist corrosion from high-salinity media and long-term scouring by sand particles and coal powder, significantly extending the downhole service life of the equipment.

    Intelligent Integrated Control Structure

    An integrated control unit composed of PLC, frequency converter, touch screen and mobile APP can collect full-range operating parameters such as pressure and displacement in real time, realizing working condition adaptive adjustment and remote visual control.

    Trinity Collaborative Management and Control Architecture

    Construct an integrated collaborative architecture of surface drive – downhole execution – remote management & control. It supports seamless switching between local and remote dual modes, enabling unattended and 7×24-hour continuous and stable operation.

    Anti-blocking and Anti-eccentric Wear Adaptive Structure

    Optimize the flow channel and string adaptive structure targeting industry pain points such as deep well tubing eccentric wear, medium scaling and coal powder blockage, ensure the unobstructed flow path for liquid drainage, and greatly improve the long-term operation stability of the system.

    Product Advantages

    • Adapted for Deep Coal-Rock Gas Exploitation

      Tailored for deep coal-rock gas reservoirs with a depth of 2500m and above, it features high temperature resistance, high pressure resistance, sand & wear resistance, and corrosion resistance. It effectively solves industry problems such as eccentric wear, scaling and coal powder blockage in deep wells, and extends the workover cycle.

    • Rodless Transmission Completely Eliminates Eccentric Wear

      It adopts surface hydraulic drive to power the downhole liquid discharge pump, fundamentally eliminating rod and tubing eccentric wear, and is applicable to various complex well types including vertical wells, deviated wells and horizontal wells.

    • Intelligent Operation & Maintenance, Convenient and Efficient

      Equipped with an integrated intelligent control system, it can monitor operating parameters in real time and support remote regulation, fault early warning and adaptive adjustment. It realizes dual-mode control of local and remote operation as well as unattended operation, reducing operation and maintenance costs and downtime.

    • Low Operating Cost

      Adopting a split reinforced structural design and targeted optimization of core components, it greatly reduces the risk of downhole faults and ensures the long-term and efficient development of deep coalbed methane.

    Why Choose the Highland Coal-Rock Gas Hydraulic Pump System

    Adaptable to Deep Extreme Working Conditions

    Tailored for reservoirs at depths of 2500 meters and deeper, it features excellent performance in high temperature resistance, high pressure resistance, sand and wear resistance, as well as corrosion resistance. It effectively solves common deep well problems such as scaling, coal powder blockage and medium corrosion, ensuring stable operation of deep reservoir exploitation.

    Completely solve the pain point of rod and tubing eccentric wear

    It adopts surface hydraulic drive for the downhole pump. The rodless transmission fundamentally eliminates rod-tubing eccentric wear, greatly extending the pump inspection and well workover cycles, and is suitable for complex well types such as vertical wells, deviated wells and horizontal wells.

    Intelligent, Efficient and Reliable Operation

    Equipped with an intelligent control system, it supports remote monitoring, fault early warning and unattended operation, reducing operation and maintenance costs. The split structure is stable and reliable, enabling long-term continuous operation and meeting the refined drainage and production requirements.

    Application Cases

    Application of Coal-Rock Gas Hydraulic Pump System

    Application of Coal-Rock Gas Hydraulic Pump System

    Application of Coal-Rock Gas Hydraulic Pump System