姬塬特低渗高含盐地层结垢防治效果  

Scaling control and removal for extra-low permeability reservoir in Jiyuan Oilfield

作　　者：刘涛[1] 金晓红[1] 马红星[1] 

机构地区：[1]长庆油田分公司第五采油厂,陕西西安710021

出　　处：《断块油气田》2009年第3期112-114,共3页Fault-Block Oil & Gas Field

摘　　要：姬塬油田三叠系主力油层地层水与注入水的严重不配伍成为特低渗透油藏地层内沉积盐垢的基础。分别采用防垢剂和除垢剂联合挤注、地层压裂和挤注防垢剂联合应用、地层酸化和挤注防垢剂联合应用3种作业方法防治地层结垢。在实施的6口注水井增注作业和6口采油井增产作业中,地层压裂和挤注防垢剂联合应用防治地层结垢的效果明显优于其他2种作业。The severe non-compatibility between Triassic formation water and injected water becomes the geology basis of formation salt scaling of extra-low permeability reservoir in Jiyuan Oilfield. Three operation methods, such as the integration of operation by squeezing scale inhibitor and scale remover, the integration of operation by fracturing and squeezing scale inhibitor and the integration of operation by aeidizing and squeezing scale inhibitor, are used to prevent formation from scaling. In the operation process of increasing the injection rate for six injectors and in the process of increasing the production for six producers, the effect of scale controlling for the integration of operation by fracturing and squeezing scale inhibitor is more obvious than that of other two methods.

关 键 词：特低渗透油田 高含盐油田 地层结垢 地层压裂与挤注防垢剂联合作业 现场试验 效果 

分 类 号：TE358.5[石油与天然气工程—油气田开发工程]