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在煤层结构比较复杂的地区,迫切需要将夹石与煤分层确切区分出来,以满足煤田地质勘探工作发展的需要。为此我队自1972年底开始反复试验了微分测井技术。提高了测井分层定厚的精度,取得了良好的地质效果,现在微分散射伽玛(J_(rr))和微分侧向电流(Ic)法已用于生产。本文试图通过对微分测井技术的简要介绍,热望引起兄弟单位的注意和研究,使微分测井技术日臻完善。
In the area with complicated coal seam structure, it is urgent to distinguish accurately between the strata and the strata of coal in order to meet the need of the development of geological prospecting in coal field. To this end my team has repeatedly tested the differential logging technology since the end of 1972. The precision of stratified thickness logging has been improved and good geological effects have been achieved. Now, the derivative scattering gamma (J rr) and differential lateral current (Ic) methods have been used in production. This article attempts to introduce the differential logging technology briefly, arousing the attention and research of the fraternal units, so that the differential logging technology is improving day by day.