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

doi:10.3863/j.issn.1000-2634.1998.03.010

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 • Previous Articles Next Articles

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

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

( 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

Abstract

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

CLC Number:

P631.83

Wei Bao-jun Zhang Zhong-qing Zhang Geng-yi. The Calibration and Sonde Error Correction of Horizontal Array Induction Logging Tool in Half Space[J]. 西南石油大学学报(自然科学版), 1998, 20(3): 34-37.

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

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