辽中富烃凹陷烃源岩测井定量评价  

Well-logging Quantitative Evaluation of Source Rock in Liaozhong Sag

作　　者：李鹏[1] 徐猛[1] 尹诗琪[1] 吴庆勋[1] 

机构地区：[1]油气藏地质及开发工程国家重点实验室.成都理工大学,四川成都610059

出　　处：《天然气技术与经济》2012年第6期19-22,77,共4页Natural Gas Technology and Economy

基　　金：国家科技重大专项课题子课题"辽中凹陷油气成藏规律及勘探方向研究"(2011ZX05023-001-014)

摘　　要：辽中凹陷作为一个富烃凹陷,对其优质烃源岩的研究仅仅处在基础阶段。为了对辽中凹陷优质烃源岩进行进一步的评价,识别优质烃源岩就成为最重要的一个步骤。但是受成本限制,不可能完全依靠地球化学分析获得凹陷内优质烃源岩的分布情况。利用测井资料,采用多元回归方法建立烃源岩评价模型,结果表明有机碳含量(TOC)计算值和实测值的相关系数r2>80%,相关性较好。这为后续辽中凹陷优质烃源岩研究及相似凹陷的研究提供了评价方法。Liaozhong Sag is rich in hydrocarbon and to identify its source rock becomes very important. However, studying the source rock with high quality is just in an initial stage at present. It’s impossible to obtain its distribution within the sag depending on geochemical analysis due to cost control. In this study, the source-rock evaluation model is established by well-logging data and multiple regression method. Results show that the correlation coefficient (r2) between calculated and measured total organic contents (TOCs) is more than 80%, representing a better correlation.

关 键 词：辽中凹陷 测井响应 有机碳含量 优质烃源岩 

分 类 号：P618.130.1[天文地球—矿床学]