青海省都兰县八宝山盆地三叠纪页岩气测井方法研究  

Study on Triassic Shale Gas Well Logging Approach in Babaoshan Basin,Dulan County,Qinghai Province

作　　者：陈建洲 谢菁 李青 巩志远 王万庆 赵胜楠 王琪玮 徐永锋 晁海德 Chen Jianzhou;Xie Jing;Li Qing;Gong Zhiyuan;Wang Wanqing;Zhao Shengnan;Wang Qiwei;Xu Yongfeng;Chao Haide(Qinghai Provincial Fourth Geological Exploration Institute,Xining,Qinghai 810029;Qinghai Provincial Key Laboratory of Shale Gas Resources,Xining,Qinghai 810029)

机构地区：[1]青海省第四地质勘查院,西宁810029 [2]青海省页岩气资源重点实验室,西宁810029

出　　处：《中国煤炭地质》2022年第2期63-70,共8页Coal Geology of China

基　　金：青海省清洁能源矿产专项“青海省都兰县八宝山地区页岩气调查评价”(2018137090kc054);青海省地质矿产勘查开发局地质勘查“青海省清洁能源靶区优选”。

摘　　要：页岩气作为重要的非常规能源,在储层物性、孔隙结构、气体赋存特征等方面与常规气藏有着明显差异,因此,相对于常规天然气,页岩气储层测井评价更为复杂。青海省都兰县八宝山盆地页岩气地质调查评价是国内首次开展的高原页岩气调查评价工作,对沿盆地中轴线施工的三个调查井均进行了全参数地球物理测井,但没有根据该地区页岩气地层特征选用针对性的测井参数。结合地层物性化验测试数据,逐参数逐条曲线核对页岩气层响应特征,遴选研究了定性准确、定量精度高的有效主参数。最终建立了有机碳含量、孔隙率、总含气量、泥质含量4项核心定量评价指数的交会图法和计算数学模型,初步形成了适合本区的特定参数组合测井曲线特征法与物性参数计算定量评价指数相结合的测井资料地质解释双重模式。As an important non-conventional energy,the shale gas has distinctive differences from conventional gas reservoir on aspects of reservoir physical property,pore structure,gas hosting features etc.Thus,relative to conventional natural gas,well logging assessment for shale gas reservoir is more complex.The undergoing shale gas geological investigation assessment in the Babaoshan Basin,Dulan County,Qinghai Province is the first carried out plateau shale gas investigation assessment in the country.In which,to three investigation wells along the axis line of the basin all carried out total parametric geophysical well logging,but have not selected targeted logging parameters according to shale gas strata features in the area.Combined with strata physical property tested data,parameter by parameter,curve by curve checked shale gas layer response characteristics,selected and studied qualitatively accurate,quantitatively high precision effective principal parameters.Finally,have established cross plot analysis method and computational mathematics modelfororganic carbon content,porosity factor,total gas content,argillaceous fraction content 4 kernel quantitative assessments,thus initially formed specific parameters combination logging curve characteristic method and physical property computational quantitative assessment index combined logging data geological interpretation dual model suitable forthe district.

关 键 词：页岩气 地球物理测井 物性参数 

分 类 号：P631.8[天文地球—地质矿产勘探]