西南石油大学学报(自然科学版) ›› 1998, Vol. 20 ›› Issue (3): 34-37.DOI: 10.3863/j.issn.1000-2634.1998.03.010

• 石油地质勘探 • 上一篇    下一篇

半空间水平放置阵列感应测井仪的刻度及误差校正

魏宝君 张中庆 张庚骥

  

  1. (石油大学资源系,山东东营257062)
  • 收稿日期:1998-05-06 修回日期:1900-01-01 出版日期:1998-08-20 发布日期:1998-08-20
  • 通讯作者: 魏宝君

The Calibration and Sonde Error Correction of Horizontal Array Induction Logging Tool in Half Space

Wei Bao-jun Zhang Zhong-qing Zhang Geng-yi
  

  1. ( Dept. of Resources, University of Petroleum, Shandong, 257062 )
  • Received:1998-05-06 Revised:1900-01-01 Online:1998-08-20 Published:1998-08-20
  • Contact: Wei Bao-jun

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,则地层对仪器常数刻度值的影响可以忽略。

关键词: 阵列感应测井, 仪器, 刻度, 误差, 校正

Abstract:

The theory and method for measuring the sondeerrors 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 cal-ibrating value of the tool factor in half space is dis-cussed. According to the predetermined relationship between background signals and the difference of lower and upper signals, the sonde errors of individ-ual 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.

Key words: Array induction logging, Instrument, Cal-ibration, Error, Correction

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