烃源岩有机碳含量的测井响应及评价方法  

The Logging Features and Evaluation Methods of Source Rock

作　　者：张晓龙[1,2] 王仁朋 李清宇[3] 

机构地区：[1]西北大学大陆动力学国家重点实验室 [2]西北大学地质学系 [3]长安大学地球科学与资源学院

出　　处：《国外测井技术》2016年第2期21-25,30,共6页World Well Logging Technology

摘　　要：为了提高对地层储层储量的评价,为油田工作提供更为准确的数据信息,需要在油气地质研究中对烃源岩识别评价,确定有机碳含量。根据烃源岩在自然伽马,密度,电阻率,声波时差等测井曲线的响应特征,结合前人烃源岩测井识别评价研究成果,分析了多种基于测井资料的烃源岩定量评价方法,其分为了两种,一是单独利用一种测井数据进行评价计算,另一种是通过多种测井数据组合建立计算模型进行评价,并简述了各种方法的原理和其中的不足。利用两种方式均可以达到求取有机碳含量和评价烃源岩的目的,单一测井评价方法所受的影响因素多且精度较低,而多种测井结合评价方法准确率高,应用较广泛。In order to improve the reserves evaluation to provide more accurate information for the oilfield, identification of the hydrocarbon source rocks is needed and the total organic content(TOC) is calculated. According to the logging response characteristics of the hydrocarbon source rocks in the natural gamma, density, resistivity and other logging and combination of previous researches about the evaluation of source rock, various evaluation methods based on logging data are analyzed. This paper introduces several methods of determining the TOC, which can be divided into two kinds: one is based on single logging method and the other is based on the combination of different logging methods. The organic carbon content can be obtained with these two methods. Because the single logging method is affected by various factors and has low accuracy, the combination of different logging methods is widely used.

关 键 词：测井 烃源岩 有机碳含量 评价方法 

分 类 号：P618.13[天文地球—矿床学]