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    石油与天然气

    In the drilling equipment for oil and gas extraction, springs are the core components. For example, the valve spring of the drilling pump controls the high-frequency opening and closing of the valve, ensuring the continuous transportation of drilling fluid, withstanding high pressure and mud erosion, and maintaining the stability of drilling operations;
    In oil and gas wellhead equipment, the spring driven valve core of the wellhead safety valve quickly resets, cutting off the oil and gas passage in a timely manner when the pressure is abnormal, preventing leakage risks, and ensuring the safety of wellhead operations;
    In the valve system of oil and gas transmission pipelines, springs are used to adjust the valve opening. For example, the reset spring of a check valve can automatically block fluid backflow, avoiding faults caused by pressure fluctuations in the pipeline;
    The micro springs of downhole logging instruments (such as sonic logging tools) can buffer complex vibrations and pressure impacts underground, protect precision sensors, ensure accurate acquisition of logging data, and assist in oil and gas reservoir analysis.
     
    Application System Specific Products Common Materials Core Performance Requirements
    Downhole Tool System Drill string damping spring, bottom hole buffer spring, packer return spring Inconel X-750, Inconel 718, Hastelloy C-276 High pressure resistance (35MPa+), H2S corrosion resistance, high temperature resistance, vibration fatigue resistance
    Valve Control Mechanism Safety valve spring, regulating valve spring, wellhead sealing spring, actuator return spring 50CrV4, 17-7PH, Monel K500 Stable pressure, zero leakage sealing, sulfur resistance & corrosion resistance, reliable high-frequency reset
    Drilling Equipment Components Drilling pump damping spring, rotary table buffer spring, BOP control spring 60Si2MnA, GH4145, 3J21 Impact resistance, reciprocating load resistance, high fatigue strength, suitable for harsh mud environment
    Oil Production Equipment Balancer spring for pumping unit, sucker rod damping spring, wellhead sealing elastic parts 65Mn, SUS631, Titanium alloy TC4 Vibration & noise reduction, alternating load resistance, rust & wear resistance, suitable for field conditions
    Offshore Platform Facilities Platform support spring, pipeline damping spring, subsea valve elastic parts Inconel 625, 15-7MO, SUS316 Seawater corrosion resistance, typhoon resistance, high elastic stability, long maintenance-free life
    Oil & Gas Transmission System Oil transfer pump valve spring, pipeline pressure relief spring, quick connector elastic parts SUS304, SUS316, Chrome vanadium steel Wear resistance & low loss, fast response, oil & gas corrosion resistance, suitable for high-pressure transmission

    Quick Overview of Oil & Gas Spring Materials

    • Downhole high temperature & high pressure: Inconel X-750/718, Hastelloy C-276. Sulfur and corrosion resistant, withstand extreme temperature and pressure.
    • Valve sealing & control: 50CrV4, 17-7PH, Monel K500. Stable pressure and excellent fatigue resistance, ideal for sealing applications.
    • Heavy-load shock absorption for drilling: 60Si2MnA, GH4145. Impact resistant with high fatigue strength, applicable to muddy and vibrating environments.
    • Offshore & heavy corrosion condition: Inconel 625, SUS316, titanium alloy. Resist seawater and hydrogen sulfide, long service life for harsh working conditions.
    • Conventional transmission & field operation: 65Mn, SUS304. Cost-effective, rust and wear resistant, meet basic damping and reset requirements.
     
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