CAJ | 학술논문

煤层气储层地球物理测井评价是获取煤层气参数的重要方法.根据沁水盆地柿庄区块煤层气储层的典型地质特征及该区块的测井资料和岩心分析数据,基体积模型和概率统计模型的分析方法,计算出煤层各组分含量;对大量的测井资料进行统计分析,得出该区煤层煤阶与地层温度相关的结论;基概率统计模型计算出的煤层组分和实验室岩心解吸测试数据,利用兰氏方程和多元线性回归导出了煤层含气量计算的经验公式,并通过该区的实际资料验证了评价方法的可信度与有效性.
매층기저층지구물리측정평개시획취매층기삼수적중요방법.근거심수분지시장구괴매층기저층적전형지질특정급해구괴적측정자료화암심분석수거,기체적모형화개솔통계모형적분석방법,계산출매층각조분함량;대대량적측정자료진행통계분석,득출해구매층매계여지층온도상관적결론;기개솔통계모형계산출적매층조분화실험실암심해흡측시수거,이용란씨방정화다원선성회귀도출료매층함기량계산적경험공식,병통과해구적실제자료험증료평개방법적가신도여유효성.
Geophysical logging evaluation is an important method to obtain coalbed methane parameters. Accord-ing to the typical coal seam geological characteristics of Shizhuang block in Qinshui basin and logging data as well as core analysis data, the authors figured out each component of coal seam based on the volume model and the probability statistical model. The conclusion is deduced that coal rank is closely related to formation temperature in this block after analyzing logging data and coal core data; Taking a research on analyzing the relationship of coal component calculated by probability statistical model and core data tested in laboratory, empirical formula of cal-culating gas content is deduced with Langmuir equation and multiple linear regression method. At last, it is proved that the methods possess the credibility and availability through the application with actual data.