长庆姬塬油田长8油藏欠注原因研究  

Researches on Causes of Less Injection into Chang8 Reservoirs of Changqing Jiyuan Oilfield

作　　者：任志鹏[1,2] 王小琳[1,2] 谢珍[1,2] 胡志杰[1,2] 刘学刚[1,2] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院 [2]低渗透油气田勘探开发国家工程实验室

出　　处：《低渗透油气田》2013年第3期87-90,共4页

摘　　要：以长庆姬塬油田长8储层为研究对象，通过研究其储层物性、注入水与地层水配伍性情况、注入水的水质情况．以及注水管网的压降，探寻长庆姬塬油田长8储层高压欠注原因研究表明：姬塬油田长8储层苯身物性差、非均质强、地层水与注入水不配伍、容易形成BaSO4垢导致近井地带堵塞、注入水水质不达标和部分注水井处于注水管网末端是造成姬塬油田长8储层高压欠注的主要原因。Taking Chang8 Reservoirs in Changqing Jiyuau Oilfield as the research object, the authors explore the causes of tess injectLion water aL high pressure in Chang8 reservoirs of Jiyuan Oilfield, by studying its reservoir properties, the compatibility of the injected water with the formation water, the situation of injected water quality, as well as the pressure drop in the injection pipe network. Studies have shown that the Chang8 reservoirs of Jiyuan Oilfield are of poor petrophysical properties and strong heterogeneity, and the injected water is not compatible with the formation water. So it＇s easy to form the BaSO4 seale to cause near wellbore plugged. The injection water quality is not up to the standard. Parts of injection wells are at the end of the injection pipe network. These are main reasons of less injection water at high pressure in Chang8 reservoirs of Jiyuan Oilfield.

关 键 词：姬塬油田 长8储层 注入水 结垢 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]