X区块火成岩风化壳结构测井评价探究  

Research on Logging Evaluation of Igneous Rock Weathered Crust Structure in Block X

作　　者：祝勇 Zhu Yong(Shengli Logging Company of Sinopec Jingwei Co.,Ltd.,Shandong,257045)

机构地区：[1]中石化经纬有限公司胜利测井公司,山东257045

出　　处：《当代化工研究》2022年第3期93-95,共3页Modern Chemical Research

基　　金：国家油气重大专项“地震与井筒精细勘探关键技术”(2016ZX05006-002)。

摘　　要：X区块石炭系火成岩油气藏为顶面风化壳型,岩石类型复杂,岩性控制着风化壳的结构特点和油气分布。如何识别风化壳的岩性,如何划分风化壳的结构层,是评价油气富集段的基础。本文利用测井资料,利用有限的岩心分析资料标定测井信息的基础上,采用主成分分析技术,识别岩性,划分风化壳粘土层、水解层、淋滤层、原岩层,判断储层的有效性,在实际应用中取得了良好的效果。Carboniferous igneous oil and gas reservoirs in Block X are top weathering crust type,with complex rock types,and lithology controls the structural characteristics of weathering crust and oil and gas distribution.How to identify the lithology of weathering crust and how to divide the structural layers of weathering crust are the basis of evaluating oil and gas enrichment section.on the basis of using logging data and limited core analysis data to calibrate logging information,this paper uses principal component analysis technology to identify lithology,divide weathered crust clay layer,hydrolysis layer,leaching layer and original rock layer,and judge the effectiveness of reservoir,which has achieved good results in practical application.

关 键 词：火成岩 风化壳 测井评价 岩性划分 风化壳结构划分 储层有效性评价 

分 类 号：P[天文地球]