GB/T 25429-2019
ActivePetroleum drilling and production equipment—Drill string non-return valve
石油天然气钻采设备 钻具止回阀
Application Summary AI generated
This standard specifies technical requirements, inspection methods, and acceptance criteria for drill string non-return valves used in petroleum and natural gas drilling and production operations. It is applied to prevent backflow of wellbore fluids through the drill string during drilling, workover, or well control events, ensuring operational safety. The standard is relevant for manufacturers, operators, and testing facilities in the oil and gas industry.
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