测井资料在低孔低渗储集层成岩相识别中的应用综述

Summarization of application for identifying diagenetic facies in low porosity and low permeability reservoirs using well-logging information

随着低孔低渗透油气藏勘探工作的跨越式发展,以沉积相优选有利勘探目标区正逐渐演化到以成岩相来优选勘探"甜点区",于是成岩相的有效识别对优质储层划分至关重要.测井信息能够较好地映射出储集层岩相、孔喉等特征,据此测井资料表征成岩相的研究备受业界关注.本文简要介绍了成岩相的定义、研究内容及分类命名之后,基于国内外低孔低渗储集层成岩相测井评价成果的深入调研和翔实梳理,对低孔低渗储集层成岩相的测井响应特征和识别方法进行了全面总结和深入剖析.系统总结得知,现有研究成果多集中在常规测井资料来划分成岩相.因此,借助于成像测井、核磁测井来标定常规测井,进而来划分成岩相将是本领域发展的趋势.

With the great-leap-forward development of the exploration of low porosity and low permeability reservoirs,optimizing favorable exploration target area by sedimentary facies is evolved to optimize exploration ‘ dessert area ’ gradually by diagenetic facies. Therefore,it’s crucial for effective identification of diagenetic facies to divide good-quality reservoir. Well-logging information can be used to reflect the characteristics of lithofacies and pore throat in reservoir effectively. Accordingly,using welllogging information to do the study of the diagenetic facies has attracted much attention in the area of petroleum industry. Based on in-depth research and detailed combing of logging evaluation results of the domestic and foreign diagenetic facies in low permeability and low porosity reservoirs, the logging response characteristics and identification methods of diagenetic facies in low permeability and low porosity reservoirs are summarized and analyzed completely in this paper. The systematic summary shows that the existing research results are more concentrated on dividing diagenetic facies through conventional logging data. Therefore, we can divide diagenetic facies through conventional Well-logging information calibrated with the imaging logging and nuclear magnetic logging,which will be the development trend of this field.