页岩气测井评价技术特点及评价方法探讨

摘要

测井技术是页岩气勘探开发的关键技术之一.从调研北美页岩气成功勘探开发实例人手,在储层地质背景研究的基础上,分析了页岩气与常规油气层测井评价方法的主要差异.根据页岩气勘探开发需求,探讨了中国页岩气测井系列的选择依据与测井评价技术.提出页岩矿物成分和储层结构评价、页岩储层标准的建立、裂缝类型识别与岩石力学参数评价等方面的研究,可以作为页岩气测井技术评价的重点.研究表明,深层页岩气测井评价技术是中国与国外的最大差别,也是中国页岩气测井评价技术的核心问题.%Logging is one of the important technology in shale gas reservoir E&P. On the basis of North American successful E&P examples, analyzed is the main difference between shale gas and conventional oil/gas evaluation. According to the demand of shale gas E&P, discussed is the basis of selecting logging series and items of log evaluation technology, and pointed out the next key study on shale gas that is mainly around how to determine mineral element of shale, evaluate reservoir structure, build reserve standard, identify types of shale fracture, and evaluate parameters of rock mechanics, etc. Our study shows that logging evaluation on deep depth is the biggest difference between China and overseas, and it's also the core question on shale gas logging evaluation in China.