鄂尔多斯盆地天然气有效储层识别与评价方法  

Methods of natural gas reservoir identification and evaluation of Erdos Basin

作　　者：秦绪英[1] 肖立志[1] 张元中[1] 

机构地区：[1]石油大学(北京)

出　　处：《地球物理学进展》2005年第4期1099-1107,共9页Progress in Geophysics

摘　　要：针对鄂尔多斯盆地天然气勘探开发存在的问题,通过对测井资料及天然气测试资料的分析,建立适合识别天然气有效储层的测井响应特征归一化方法,以及根据测井资料重构天然气有效储层特征曲线的方法,探索了根据测井资料评价天然气产能的方法.本文还分析了目前常用的预测天然气产能方法存在的问题及实际应用中欠缺的条件,形成了以中子、声波、密度测井资料为基本特征参数,用自然伽马、自然电位或电阻率比值参数等作为约束条件的天然气有效储层识别技术及天然气产能评价方法,并对实际测井资料进行了处理.没有试图通过井径校正的方法将受井径扩大影响的曲线恢复到原始地层的响应状态,而是通过极值变化消除井径扩大对声波、密度测井资料在天然气有效储层识别及天然气产能评价方面应用的影响.A new method of normalization the logging datum for identification the effective reservoir using the information of logging and test is developed in order to solve some problems of exploration and development of gas in Erdos Basin. We also study a method to rebuild the characteristic curves of the effective gas reservoir with logging datum and introduced a new way to estimate gas reservoir production energy. The limitations of several techniques commonly used in evaluating the reservoir have been analyzed, and a new way to identify and evaluate gas reservoir is given mainly based on density log,neutron log and acoustic log , otherwise natural gamma log and spontaneous potential log used as restriction. Some well logging datum has been processed and interpreted by useing these methods.

关 键 词：鄂尔多斯盆地 天然气 测井响应特征归一化 储层识别 产能评价 

分 类 号：P631[天文地球—地质矿产勘探]