摘要
应用井-地电法油藏预测技术可以确定已知油藏的分布范围和边界。该方法采用大功率套管内置电极供电,电极在油藏上下两次激发,于地面接收电磁场,在室内对两次激发结果进行差分处理和分析,得到储集层电阻率和极化相位差,根据其异常确定目标储集层的边界,同时推断相邻圈闭的含油性。该方法应用于我国西部山前带Q1井区和东部某油田H19井区,其预测的结果有效性得到了部分探井的验证。
High-power surface-borehole electrical method can be used for mapping spatial distribution and extent of known reservoir. The technology employs highly-powered electrodes emplaced in coiled tubing, in which the electrodes are powerd above and under studied reservoir, respectively, and two times of elecmagnetic response are recorded on ground. The difference calculation and analysis of the recorded data have been processed to obtain the resistivity distribution and polarization phase difference of hydrocabon-bearing layer. The boundary of target hydrocarbon-bearing layers and oil-bearing features of adjacent trap could be mapped based on the anomalies of foregoing two parameters. The method are used in the well field Q1, fore-land of West China, and in the well field H19, an oilfield in East China, where the predictions are fully confirmed by exploratory wells.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2004年第5期74-76,共3页
Petroleum Exploration and Development
关键词
井-地电法
勘探开发
储集层
有利区
surface-bore electrical method
exploration and development
reservoir
potential area
