陕北油田防漏堵漏工艺技术研究

Study on Leak-tightening and Caulking Technology for Shanbei Oil Field

陕北油田普遍存在井漏损失(主要漏失层为一开第四系黄土层、二开洛、环河组、志丹群、延安组、延长组等)。漏失类型主要为渗漏和有进无出的大漏。防漏措施和堵漏技术能明显减少井漏次数,并能快速有效地,堵住漏层,从而减少了经济损失,提高了经济效益,保护了油气层。

The well leakage loss universally exists in Shanbei Oil Field.The main leakage stratum are first drilling fourth series loess strata,second drilling Luo,Huanhe group,Zhidan crowd,Yanan group and Yanchang group etc.The main leakage losses are percolation and big leakage.Leakage-tightening measures and caulking technology can obviously reduce well leakage times and rapidly caulk leakage strata,which reduce economy loss and raise economy benefits and protect oil and gas strata.