摘要
论述了在半空间测量水平放置阵列感应测井仪器线圈系误差的理论和方法，给出了误差校正图版和误差校正公式；讨论了半空间中均质地层电导率对仪器常数刻度值的影响。将阵列感应测井仪器水平悬挂在距地面两个不同的高度处，根据预先确定出的背景信号与信号差之间的关系，可以在无需知道地层电导率的情况下确定出每个单元阵列不同输出曲线的线圈系误差。计算结果表明：若线圈系距地面高度较高，且地层电导率值较小。
The theory and method for measuring the sonde errors of horizontal array induction logging tool in half space are discussed, and the correction charts and correction formulae are presented. The influence of conductivity of homogeneous formation on the calibrating value of the tool factor in half space is discussed. According to the predetermined relationship between background signals and the difference of lower and upper signals, the sonde errors of individual output curves of each array can be determined with the tool horizontally hanging at two different heights, even if the conductivity of the formation is unknown. The results suggest that influence of the formation on the calibrating value of the tool factor can be neglected if the coils are far away form the surface and the formation conductivity is small.
出处
《西南石油学院学报》
CSCD
1998年第3期34-37,共4页
Journal of Southwest Petroleum Institute
基金
石油天然气总公司攻关项目
关键词
阵列感应井仪
刻度
误差
校正
测井仪
Array induction logging
Instrument
Calibration
Error
Correction
