测井资料在煤层气储层评价中的应用研究

Applying Well-logging Data in Evaluation of CBM Reservoir

就目前煤层气测井技术的发展现状,简述常用的煤层气测井方法与测井地质应用,以某地区的研究区块多口井的分析资料为例,讨论了煤层测井曲线与水分、灰分、物性等参数的关系,依据煤层气储层实验室分析资料,对煤组分、物性参数的计算方法进行了研究,通过对已有的计算方法进行改进,使得利用测井资料计算各项参数的可靠性有了一定的提高。同时,分析了煤层气测井技术的研究方向。

The paper describes briefly the commonly used CBM logging methods and geologic applications of logging data based on current status of CBM well logging techniques. Taking the analysis data of a number of wells in the studied block in a certain area as samples,the paper discusses the relations among some parameters,like logging curves of coal seams,moisture content,ash content,physical properties,etc. and it studies the methods for calculation of coal constitution,physical properties,etc. based on data of CBM reservoir obtained from laboratory analyses. After improvement of existing computation methods,the reliability of computation in using all the parameters is improved to some extent based on the well logging data. At the same time,the direction of research on CBM well logging techniques is also analyzed.