摘要
通过贵州省瓮安县草塘镇地热井的地球物理测井案例,综合分析了自然伽马、电阻率、自然电位、补偿时差、井径等物理参数在不同岩石上的测井响应特征.对井中的实测曲线进行了综合地质解释,解译了地层层位、岩性、井斜、井温、典型标志层和含水层等,为地热井下实管、下筛管等提供了科学依据,提高了地热井勘探的成井率,从而确定了地球物理测井是提高开发地热井成井率的一项重要措.
Abstract
Based on the geophysical logging case of Caotang geothermal well in Weng'an County,Guizhou Province,the logging response characteristics of natural gamma ray,resistivity,SP,compensation time difference,well diameter and other physical parameters on different rocks are comprehensively analyzed.The comprehensive geological interpretation of the measured curve in the well is carried out,and the stratigraphic position,lithology,well inclination,well temperature,typical marker and aquifer are interpreted.The scientific basis is provided for the actual pipe and screen pipe in the geothermal well,and the completion rate of the geothermal well exploration is improved.