带压更换天然气井口采气树主控制阀新技术

A NEW TECHNOLOGY OF REPLACING THE MASTER VALVES OF GAS WELLS CHRISTMAS TREE WITH PRESSURE

天然气井采气树主控阀门常存在闸门内漏、丝杆弯曲等实际情况,为了消除主控制阀带来的安全隐患,研究了一种专用堵塞器和辅助装置的带压更换主控阀新技术,具有易观察、易受控、安全、可靠等优点,现场共应用9井次,具有显著的经济效益。

The master valves of the gas wells christmas tree exists the inner leakage, crooked screw rod, etc. problems. In order to eliminate potential safety hazard of master valves, a new technology which contains a special blanking plug and servicing unit has been researched to replace the master valves with pressure. It has some advantages, such as easy observation, controlled easily, operation safety and veraciousness. So far, this new technology has been applied to replace master valves of 9 gas wells and has obtained outstanding economic benefit.