摘要
科尔沁油田主力含油层位为中孔低渗裂缝性油藏,受天然裂缝和人工裂缝的影响,注水沿裂缝推进,水淹快,采出程度低。为改变裂缝性油藏注水水淹状态,经过大量室内试验,研究开发了体膨颗粒/弱凝胶调剖技术,在科尔沁油田包14块水井上进行了裂缝半封堵现场试验,见到了增油降水效果,得出了结论。
The main productive zone of Keerqin Oilfield belongs to the fractured reservoir with middle porosity and very low permeability.As it is influenced by the natural and man-made fractures,the waterflooding is pushed into the fracture.The fractures are quickly waterfooded and the oil recovey degree is decreased.In order to change the situation,we have made many experiments and developed the volume expanation grain and the weak gel profile control technique.We have made the field test of fracture semiplugging in the injection well of Block Bao 14 of Keerqin oilfield.The produced crude oil is increased and producing water cut is decreased.
出处
《断块油气田》
CAS
2006年第6期30-31,共2页
Fault-Block Oil & Gas Field
关键词
裂缝
体膨颗粒
弱凝胶
注水井
调剖
Fracture,Volume expansion grain,Weak gel,Injection well,Profile control
