远探测声波反射波测井方法研究及声系设计方案

Remote Exploration Acoustic Reflection Well Logging Device and Its Acoustic Sonde Design

传统的测井方法和仪器的探测深度一般最大不超过 3m。放射性测井的探测深度虽然大 ,但只是地层平均的结果 ,因此 ,用传统的测井方法无法识别井壁周围距井壁较远处地层中存在的裂缝和地质异常体。将地震的方法应用于声波测井领域 ,提出一种探测深度可以达到 10～ 15m的新仪器———远探测声波反射波测井仪的整体设计方案 。

In petroleum exploration and exploitation, it is necessary to perform geophysical well logging in boreholes. Generally, for traditional well logging methods and devices, the maximum investigation depths are below 3 m. Although the investigation depth of radioactive well logging is very big, it is just the average result of all formations. Thus comes the problem that fractures and geological abnormal objects far from the borehole cannot be detected by traditional well logging methods. The aim of this paper is to resolve the problem by introducing methods of seismology into the area of acoustic well logging, and bring forward an overall scheme of a new well logging device--Acoustic Reflection Well Logging Device for Remote Exploration, the investigation depth of which will reach 10 to 15 m.