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    ARROW TYPE CHECK VALVE

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      • Commodity name: ARROW TYPE CHECK VALVE
      • Commodity ID: 1457329362116956160

      　　Arrow type check valve (drilling tool check valve) is a kind of important inside blowout tool, usually used in the oil and gas drilling and workover operation. It works with drilling toolsenter into the well, during the process of drilling and workover in case of overflow, well kick, or positive circulation stops, the arrow type check valve will shut down rapidly under the action of reverse circulation pressure inside drill tools and spring force, cut off the inner channel of drilling tools, to prevent blowout purpose in the drilling tools.

      　　Arrow type check valve (drilling tool check valve) is a kind of important inside blowout tool, usually used in the oil and gas drilling and workover operation. It works with drilling tool senter into the well, during the process of drilling and workover in case of overflow, well kick, or positive circulation stops, the arrow type check valve will shut down rapidly under the action of reverse circulation pressure inside drill tools and spring force, cut off the inner channel of drilling tools, to prevent blowout purpose in the drilling tools.

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    KELLY VALVE

    　　Kelly valve also named Kelly cock or drill pipe safety valve. It is manual control valve in drill string circulating system，and it is one of the effective tools to prevent blowout. Kelly valve is divided into Upper Kelly Valve and Lower Kelly Valve，Upper Kelly Valve is used between swivel sub and Kelly, Lower Kelly valve is usedbetween lower end of Kelly and upper end of drill pipe，the special wrench rotate 90 ° switch can achieve on and off according to instruction. In the drilling operation, in order to avoid malignant accidents, shall be connect Kelly valves on the both end of Kelly to prevent loss of drilling fluid and blowout prevention.

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    TUBING VALVE

    　　Tubing valve also named tubing cock, and drilling fluid can flow through the vale without pressure drop. This kind of valve is used as the tubing valves and install above tubing to control blowout or to prevent drilling fluid loss when disassemble the tubing.

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    FULL OPENING SAFETY VALVE

    　　Full opening safety valve is manual control valve in drill string circulating system，and it is one of the effective tools to prevent blowout。In the drilling operation, in order to avoid malignant accidents，full opening safety valve shall be connected between drill pipes in drilling operation. The special wrench of full opening safety valve rotates 90 ° switch can be achieved on and off. And when need to lift drill pipes or Kelly has not be lifted，as a precaution, it is better to install fully opening safety valve.

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    INSIDE BOP VALVE

    　　Inside BOP Valve is a kind of check valve with large pressure drop, tapered plug of valve, reduces cutting action of the mud on the seat, to ensure that the correct closed position. Inside BOP Valve connected with drill string can protect swivel, hose and stand pipe. It also can be used before high pressure pump, prevent high pressure blowout. A dedicated release tool keeps the valve normally open and allows reverse flow to pass. This dedicated release tool pre-installed in the valve and the assembly prepared on the drilling platform, for quick installed on the drill stringwhen the first signalappears from the well.

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