摘要
测井仪器的刻度目的在于使同一类型的各支测井仪具有一致的测井响应效果。本文分析了同一类型的几支补偿中子测井仪的测井响应值之间存在的离散性,论述了目前国内外补偿中子测井工作中采用一点法刻度的应用局限性,即它只对孔隙度接近刻度点的那种地层才有意义。因而作者提出并论证了采用两点刻度法,它能使几支仪器在相当宽的孔隙度范围内得到一致的测井响应效果。
The purpose of log calibration is to make various tools of one type have consistent re-sponse. The dispersion of compensated neatron tools is analyzed. The limitation of presentdomestic one point calibration method is described, that is, the one point calibration is sig-nificant only for the formation with porosity approximate to calibration point porosity. Thentwo point calibration method is presented, which can make various tools have consistent re-sponse at a wide range of porosity and has other strong points.
