中国石油勘探 ›› 2005, Vol. 10 ›› Issue (4): 71-74,86.

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KCl钻井液对测井曲线的影响初探

王绿水,柳孟文,柯启宇   

  1. 辽河石油勘探局测井公司;辽河油田分公司勘探处 辽宁省盘锦市124010;辽宁省盘锦市124010;辽宁省盘锦市124010
  • 出版日期:2005-08-15 发布日期:2005-08-15

Discussion of KCLMudAffecting onLog

Wang Lushui,Liu Mengwen and and Ke Qiyu   

  1. Wang Lushui1, Liu Mengwen1 and Ke Qiyu2// 1 Company of Well Log, Liaohe Bureau of Petroleum Exploration, Panjin City, Liaoning 124010;2 Departmento f Exploration,Liaohe Oilfield Company,PetroChina,Panjin City,Liaoning Province 124010
  • Online:2005-08-15 Published:2005-08-15

摘要: 钻井过程中,井壁垮塌时常发生,给资料录取带来困难,KCl钻井液是为了保护井壁而采取的一项措施,但是却降低了测井曲线对地层特性的反应,给测井评价造成了不利影响。从辽河油田实际资料出发,分析KCl钻井液特性,研究KCl钻井液对电阻率曲线、能谱曲线和对自然伽马的影响,以及自然伽马曲线的校正方法,探讨消除其影响的方法,为KCl钻井液测井评价提供依据。

关键词: KCl钻井液, 电阻率, 自然伽马, 能谱测井影响因素, 校正方法

Abstract: During the drilling process, it is difficult to collect the log data when the cave-in takes place.KCl drilling mud is one of the methods to protect side-wall fromcollapsing, nevertheless it reduce the response of log curve to strata characteristics and is not favorable for well log evaluation. Based on the actual data ofLiaohe Oilfield, it analyses the property of KCl mud,studies the influence of KClmud to resistivity curve,GRspectrumcurve and GR curve and the correction methods for GRcurve, discusses the way to eliminate these effect, and provides the evidence to KCl mud logging evaluation.

Key words: Kcl mud, resistivity, spontaneous gamma;energy spectrumlog, affecting factors, corrected method

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