摘要
与VSP测井求取的地层平均速度相比,用声波速度测井求取的地层平均速度存在着一定的误差。这种误差主要是声波测井过程中的时间累积误差所致。误差的大小与所测井的井况、所测的井段及该井段的地层情况密切相关。因此,在使用声波测井平均速度进行层位标定和时深转换时,必须先对其存在的误差予以校正,才能使之满足日益提高的勘探精度要求。
There are some errors between mean velocity of format io ns obtained from sonic logging compared to VSP logging,which are mainly resulte d from cumulative time errors in sonic logging,and closely related to well cond ition,wellbore interval and its formation.Therefore,during horizontal calibra tion and time-depth conversion by means of sonic log mean velocity,it is neces sary to correct the existed errors in order to meet requirements of more and mor e exploratory precisions.
出处
《新疆石油地质》
CAS
CSCD
2004年第1期50-52,共3页
Xinjiang Petroleum Geology
