【摘要】 利用电阻率测井理论和反演技术,建立了高分辨率双侧向(HRDL)和高分辨率双感应(HRDI)测井响应的联合反演算法,对HRDL和HRDI测井曲线进行连续反演.构造不同层厚的地层模型,将联合反演结果和单一HRDL反演以及HRD I反演结果进行了对比,结果表明:联合反演不仅可以同时确定地层真电阻率、侵入深度和侵入带电阻率,而且还可以改善测井反演问题中解的局部收敛性和多解性.对现场HRDL和HRDI测井曲线的联合反演结果也证明了其有效性和可靠性.更多还原

【Abstract】 A joint inversion algorithm of high-resolution dual laterolog (HRDL) response with high-resolution dual-induction logging (HRDI) response is proposed using resistivity logging theory and inversion technique in order to finish the simultaneous inversion of HRDL and HRDI curves.The artificial formation models of different thickness are constructed,and their joint inversion is carried.The joint inversion results are compared with the results of unique HRDL inversion and unique HRDI inversion.It is shown that the joint inversion not only can determine true formation resistivity,invasion depth and invasion zone resistivity,but also can improve the local convergence and multiplicity of unique HRDL inversion and unique HRDI inversion.A joint inversion case of HRDL and HRDI logging data in a field site proves the effectiveness and reliability of the algorithm.更多还原