跨孔同步视电阻率测量与应用

本文介绍了跨孔同步视电阻串测量工作方法。用解析法和有限元法计算了球体、二维板状体跨孔同步视电阻率测量曲线特征,并提出解释方法。该方法对解决跨孔间目标体的连通与延伸,确定目标体距测量孔的距离及解决目标体产状等方面具有较好的应用价值。在福建某铜金矿区的方法试验中与无线电波透视法比较取得了今人满意的效果。该方法对探测金属、非金属矿体、岩溶洞穴、断块油藏等方面将会显示出特殊作用。

TRANSBOREHOLE SYNCHRONOUS APPARENT RESISTIVITY SURVEY AND ITS APPLICATION

The present paper introduces the working method of the transborehole synchronous apparent resistivity survey. Using the analytical method and the finite element method, the paper has calculated curve characteristics of transborehole synchronous apparent resistivity survey for spheroids and two-dimensional tabular bodies, and presented an imterpretation method.The method proves to be valuable in such aspects of application as accomplishing the connection and extension of transborehole objects and determining the distance between the object and the surveyed borehole as well as the attitude of the object. In the methodological test performed within a copper-gold ore district of Fujian Province, the method yielded satisfactory results as compared with the radio-wave fluoroscopic method. The method will surely play a special role in the detection of metallic and nonmetallic orebodies, karst caves and fault-block petroleum pools.