昆北油田切12区低产液井洗井方法研究  

Study on well washing method for low liquid yield well in Qie 12 block,Kunbei Oilfield

作　　者：郭得龙 马浩楠[1] 张梦千[1] 贾建姣 刘博[1] 杨璐[1] 

机构地区：[1]青海油田分公司采油二厂,青海海西816400

出　　处：《石化技术》2016年第2期134-134,共1页Petrochemical Industry Technology

摘　　要：昆北油田切12区压力系数低于1,特别是低产液井洗井时必然会造成地层污染。洗井后向地层挤入缩膨剂,有效抑制了粘土膨胀,对于前期因洗井造成地层污染的井或由于工作参数变化造成污染的井,挤注缩膨剂后,产液量也能恢复。The pressure coefficient in Qie 12 block,Kunbei Oilfield is lower than 1,which leads to formation pollution when washing low liquid yield well.Shrinkage agent is used to inject to the formation after well washing,which can effectively inhibit the expansion of clay.The well polluted by washing in early stage or by the changes of working parameters can be recovered by injecting this agent.

关 键 词：低产液油井 洗井 缩膨剂 

分 类 号：TE358[石油与天然气工程—油气田开发工程]