摘要
通过对自然电位曲线影响因素进行校正和对声波孔隙度进行压实校正,利用校正后的测井资料求出地层混合水电阻率Rwz、泥质含量Vsh、孔隙度Φ后,推算出了驱油效率η的数学公式,结合井的实际情况,编制成高含水期油田水淹层评价解释的软件系统。在某油田高含水期阶段水淹评价解释中的应用表明,驱油效率法的解释效果较好。
The factors affected the SP curve and sonic porosity for its compressions have been corrected, with which the resistivity of mixtures of formation water and injection water (Rwz), the volume fraction formations consisting shale (Vsh) and the porosity (ф) are determined. As a result, the formula of oil displacement efficiency η is obtained to calculate waterflood. The software to interpret wateredout severity at high watercut stage has been programmed. The research is used in an oilfield at high watercut stage, the results agree with well test data to a certain degree.
出处
《石油钻探技术》
CAS
2003年第6期48-50,共3页
Petroleum Drilling Techniques
关键词
水淹层
驱油效率
高含水期
含水饱和度
含油饱和度
电阻率
测井解释
数学模型
watered out
oil displacement efficiency
high water cut stage
water saturation
resistivity
log interpretation
mathematical model
