摘要
在总结阳泉矿区寺家庄井田含煤地层发育特征的基础上,优选出六层可以作为煤层气开发层位的煤层进行煤岩组分分析,并提取各取样煤层所对应的测井参数,建立了自然伽马与灰分、固定碳与灰分、挥发分与视电阻率之间的线性关系。依据煤层体积可以分成固定碳、挥发分、灰分和测井液(孔隙中充满测井液)四部分,作为对测井响应的贡献之和,建立了测井密度模型用于计算煤层有效孔隙度,结果显示孔隙度测井计算结果与实测结果相差不超过10%。研究成果可用于指导煤岩工业组分分析和储层物性分析。
By summarizing the development characteristics of the coal bearing strata of Sijiazhuang Mine in Yangquan Mining Area,six coal seams were selected as coalbed methane development seam to analyze the coal petrography composition,and logging parameters corresponding to each sampling coal seam were extracted,the linear relationship between natural gamma and ash,fixed carbon and ash,volatile matter and apparent resistivity were established. According to the volume of coal seam,it can be divided into four parts: fixed carbon,volatiles,ash and logging fluid( pore filled with logging fluid). As a contribution to the logging response,a logging density model was established to calculate effective porosity of coal seams. The results show that the difference between the porosity of logging calculation and the measured results were not more than 10%.The research results can be used to guide the composition analysis and physical property analysis of coal industry.
作者
于振锋
郝春生
邵显华
杨昌永
姚晋宝
王维
YU Zhen-feng;HAO Chun-sheng;SHAO Xian-hua;YANG Chang-yong;YAO Jin-bao;WANG Wei(State Key Laboratory of Coal and CBM Co-extraction,Jincheng 048000,China;Yi’an Lanyan Company with Limited Liability of Coal and CBM Co-extraction Technology,Taiyuan 030006,China)
出处
《煤炭工程》
北大核心
2019年第1期82-86,共5页
Coal Engineering
基金
山西省自然科学基金项目(2015012003)
山西省自然科学基金项目(2016012012)
山西省科技重大专项(MQ2015-02)
关键词
寺家庄井田
含煤地层
测井
密度模型
有效孔隙度
Sijiazhuang minefield
coal bearing stratum
well logging
density model
effective porosity
