福山油田柱塞气举技术应用及效果

Application and Effect of Plunger Gas-lift Technology in Fushan Oilfield

福山油田流二三段油气藏属于典型弹性溶解气驱的油气藏,具有弹性能量小,边水不活跃的特点。经过十年的衰竭式开采,地层能量下降,因积液原因导致间喷或停喷的气井越来越多,通过结合福山油气井积液特点,对比优选排液采气的工艺技术,采用柱塞气举排液采气工艺,排液采气应用效果较好,柱塞气举能够消除或减缓井筒积液,延长气井的自喷周期,气井产能得到恢复。

Oil and gas reservoirs of Liu 2 Member and Liu 3Member in Fushan Oilfield belong to typical elastic and solution gas driven oil and gas reservoirs with characteristics of small elastic energy and inactive edge water.After ten years of depletion production,their stratum energy drops.There are more and more gas wells stopping production due to hydrops.Plunger Gas-lift Technology is used based on hydrops features of oil and gas wells in Fushan Oilfield.The application of gas recovery by liquid unloading has achieved a good result.The technology contributes to eliminating or slowing down wellhole liquid loading,prolonging gas well blowing cycle and recovering gas well productivity.