井地联合并行电法测试模拟与应用

井地联合并行电法通过在井孔和地面布设电极,进行全电极供电和测量,获得钻孔周边地电场分布特征,研究储层介质结构及变化特征,对地下复杂地电模型分辨具有重要作用。文章通过构建室内井地电法测试模型,采用并行电法技术,三维反演介质的电阻率,判断井孔周边不同类型地质体的异常分布特征。结合野外井地条件进行实测,结果表明,通过井地联合测试系统可以对钻孔周边地质条件进行有效分辨,为储层介质探查与判断提供辅助依据。...

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Bibliographic Details
Published in地质与勘探 Vol. 51; no. 5; pp. 964 - 969
Main Author 张平松 吴健生 赵永辉 许时昂
Format Journal Article
LanguageChinese
Published 2015
Subjects
井地联合
孔周地质条件
并行电法
模拟试验
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Summary:井地联合并行电法通过在井孔和地面布设电极,进行全电极供电和测量,获得钻孔周边地电场分布特征,研究储层介质结构及变化特征,对地下复杂地电模型分辨具有重要作用。文章通过构建室内井地电法测试模型,采用并行电法技术,三维反演介质的电阻率,判断井孔周边不同类型地质体的异常分布特征。结合野外井地条件进行实测,结果表明,通过井地联合测试系统可以对钻孔周边地质条件进行有效分辨,为储层介质探查与判断提供辅助依据。
Bibliography:borehole-ground joint; simulation test; parallel electrical method; geological conditions around borehole
11-2043/P
Laying electrodes in a borehole and on the ground,the borehole-ground joint parallel electrical method conducts power supply and measurement of whole electrodes and determines distribution characteristics of the ground electric field around the borehole. The acquired data permit to study medium structure of reservoirs and its variations. It can play an important role in distinguishing complex models of earth electricity in the subsurface. This work establishes a test model of the borehole-ground electrical method and inverts the resistivity of a 3D medium by this technology. The purpose is to distinguish anomaly distributions of different types of geologic objects around the borehole. The results of actual measurement in the field indicate that geologic conditions around a borehole can be explained effectively using the testing system of this electrical method,and can provide evidence for explorat
ISSN:0495-5331