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文留油田由于气油比高、液面高 ,油井能量较充足 ,一些不法分子常从套管偷油窃气 ,影响油井正常生产。针对这一难题 ,研制了套管防盗油密封阀 ,并配套应用了井下油气分离器与气举阀助流举升工艺技术。当气液经井下分离器分离后 ,气体进入油套环空 ,并在上部防盗阀将环空密闭的情况下 ,压力升高到气举阀打开压力时进入油管 ,使油套环空压力处于动态平衡状态 ,从而能够同时解决防盗、防气两大难题。现场应用取得了明显效果 ,为类似油田开发管理提供了一条新途径。
Wenliu Oilfield due to high gas-oil ratio, high liquid, oil wells more adequate energy, some criminals often steal oil from the casing to steal gas, affecting the normal production wells. In response to this problem, developed a casing anti-theft oil seal valve, and supporting the application of downhole oil and gas separators and gas lift valve assist flow lifting technology. When the gas and liquid separated by the downhole separator, the gas into the oil ring annulus, and the upper anti-theft valve will be closed under the circumstance of the ring, the pressure rises to the gas valve open pressure into the tubing, the oil ring annulus pressure at Dynamic balance of state, which can simultaneously solve the security, anti-gas two major problems. The field application has achieved remarkable results, providing a new way for the development and management of similar oilfields.