页岩气储层地球物理测井研究进展  

Progress in geophysical logging technology for shale gas researvoirs

作　　者：谭茂金[1,2] 张松扬[3] 

机构地区：[1]地下信息探测技术与仪器教育部重点实验室,北京100083 [2]中国地质大学地球物理与信息技术学院,北京100083 [3]中国石化石油勘探开发研究院,北京100083

出　　处：《地球物理学进展》2010年第6期2024-2030,共7页Progress in Geophysics

基　　金：油气资源与探测国家重点实验室开放课题(2009009);中央高校基本科研业务费专项资金(2010ZY28);国家重大专项"大型油气田及煤层气开发项目(2008ZX05023-005)"联合资助

摘　　要：页岩气是储存在页岩中以游离态和吸附态存在的天然气,是一种非常规油气资源.地球物理测井技术具有方法多、纵向分辨率高、信息量大、连续、方便、灵敏等优势,能够获得沿井眼剖面的岩石物理参数,是常规油气资源和非常规油气储层评价的重要手段.文章综述了页岩气储层的地质特点,总结了国内外页岩气测井系列和页岩气的测井响应特征.针对测井信息的处理,给出了基于测井有机碳含量(TOC)计算和成熟度指数(MI)的研究进展,讨论了页岩岩性识别、矿物计算和裂缝的评价方法,并对美国页岩气测井评价实例做了介绍.最后,指出目前页岩气测井技术存在的问题和未来的突破方向和思路,对指导页岩气勘探和经济评价具有重要指导意义.Shale gas is stored in the shale as gas of adsorbed and free state, so it is a kind of non-convensional resources. Geophysical logging technology has high vertical resolution and sensitivity, and can provide continuous petrophysical information along the borehole, so is an indispensable means of reservoir evaluation of conventional resource as well as unconventional resources. This paper summarizes the geological characteristics of shale gas reservoirs and the logging series for shale gas reservoirs at home and abroad, and discusesses logging response characteristics of shale gas reservoirs. For logging data processing, total organic carbon content （TOC） calculations and maturity index （MI） based on the logging data are derived, and the research progress and calculation methods are given to discuss evaluation method for fractures shale. A case study in Americais taken to in troduce well logging and interpretation of shale reservoirs. Finally, some problems about the shale gas well logging and petrophysical parameter calculation are pointed out, and the breakthroughs and important research direction are also proposed, which is an important guide to shale gas exploration and economy evaluation.

关 键 词：页岩气 测井技术 有机碳(TOC) 成熟度指数(MI) 参数计算 

分 类 号：P631[天文地球—地质矿产勘探]