温度与压力对注水地震监测的影响  

Effects of temperature and pressure on seismic monitoring for waterflooding.

作　　者：云美厚[1] 张国富[2] 张国才[2] 易维启[3] 

机构地区：[1]大庆石油学院勘探系 [2]大庆石油管理局物探公司 [3]大庆油田责任有限公司勘探部

出　　处：《石油地球物理勘探》2001年第4期466-470,共5页Oil Geophysical Prospecting

摘　　要：注水不仅会引起储层流体饱和度的变化，而且会导致储层温度和压力 的变化。本文分析了注水 对储层地震特性的影响，并通过正演模拟着重研究了地层压力与温度的变化对地震响应的影 响。模拟结果表明：流体替换是产生注水地震异常的关键。由于注水而引起的地层压力的增加将削弱流体替换的影响，而相应的温度降低却会增强流体替换的影响。当地层压力和温度 变化较大时，其对地震响应的影响是不可忽略的。Waterflood can cause variation not only in reservoir fl uid saturation, b ut also in reservoir temperature and pressure. The paper analyzed the effects of waterflood on seismic characters in reservoir and gave emphasis to study of eff ects of variation in reservoir pressure and temperature on seismic response by f orward modeling. The modeling results show that fluid displacement is key to se ismic anomaly caused by waterflood. Increase in reservoir pressure will weaken the effect of fluid displacement but corresponding decrease in temperature will strengthen the effect of fluid displacement. Its effects on seismic response ca n not be neglected when variation in reservoir pressure and temperature is large r.

关 键 词：油田开发注水地震监测 地震异常 流体替换 压力 温度 正演模拟 

分 类 号：TE151[石油与天然气工程—油气勘探] TE357.62