页岩气藏评价中的岩石物理方法  

Petrophysical workflow for shale gas evaluation

作　　者：张晓玲[1] 肖立志[1] 谢然红[1] 吴恒[1] 高扬[1] 

机构地区：[1]油气资源与探测国家重点实验室,中国石油大学(北京),北京102249

出　　处：《地球物理学进展》2013年第4期1962-1974,共13页Progress in Geophysics

基　　金：国家自然科学基金(批准号:41130417);国家自然科学基金委员会-中国石油天然气集团公司石油化工联合基金资助项目(U1262114);壳牌(中国)项目技术有限公司资助

摘　　要：岩石物理在页岩气勘探开发中非常重要,而文献中至今缺少足够的重视.本文分别从页岩气藏的地质特征、评价参数、岩心分析工作流程及测井工作流程等4个方面探讨页岩气储层的固有特征及岩石物理所起的关键作用.从生烃潜力、储存性能、流动特性和力学性质讨论相关评价参数的岩石物理方法,重点讨论吸附气含量的计算、力学性质及基质渗透率的测量.在页岩气储层测井评价方面,重点探讨有机质含量的测井评价方法、页岩气层孔隙度的评价方法、随钻测井用于水平井的地质导向、及测井评价在制定压裂方案中的应用.Petrophysical evaluation plays very important role in shale gas prospecting and development. Unfortunately there is no enough literatures available in this field. This paper will focus on petrophysical methodology and workflow in shale gas evaluation. Geologic feature, evaluation parameters, core analysis workflow and well logging workflow are discussed in details. Evaluation parameters consist of four parts, such as potential of hydrocarbon generation, storage ability, flow behavior and geomechanical properties. Key parameters are pointed. A core analysis workflow of shale gas is provided. Absorbed gas content calculation, rock mechanics and matrix permeability is mainly discussed. Then a well logging workflow is provided too. Using well logs to get organic matter characters and porosity, LWD used for geosteering and application of making fracturing program are the most important parts and discussed in detail.

关 键 词：页岩气 评价参数 岩心分析 测井 岩石物理 

分 类 号：P631[天文地球—地质矿产勘探]