摘要
针对石西油田石炭系油藏油井重复酸化效果逐年变差,开展了前置液酸压工艺技术研究及试验,并通过微地震波监测技术对酸压裂缝的长度及走向进行了监测。研制出了表面活性缓速酸酸液体系,具有低摩阻、降滤失、缓速性能好、低伤害等特点,满足了石炭系油藏酸压的要求,现场试验12井次,有效率100%,累计增产原油1.2万吨。
To counter the tendency that the repetitive acidification effect is becoming worse and worse year after year in carboniferous oil reservior in ShiXi oilfield,prepositive acid fracture techniques' research and test are conducted.At the same time,the whole process is monitored.A new system is developed,Which has low risistance,good preformance of lowing speed and low damage.so it meets the needs of acidification and it has been tested for twelve times.Validity rate is 100 percent and the total increased crude oil is 1.2 million tons.
出处
《新疆石油天然气》
CAS
2005年第2期69-73,共5页
Xinjiang Oil & Gas
关键词
石炭系油藏
酸压
表面活性缓速酸
carboniferous oil Reservior
acid fracture superfacial active speed-buffering acid
