摘要：Continental shale oil has become the major unconventional oil resource in China. The reservoir features include the development of lamellation crack，low porosity，large difference between horizontal and vertical permeability，and complex pore structure. Therefore，clarifying the relationship between the elastic and physical parameters of shale oil reservoirs is important. In addition，there are few studies on the characteristics of shale lamellation crack and its influencing factors. Based on anisotropic background media，a rock physical modeling method for fracture porosity shale rich in kerogen is proposed in this paper. Through rock physical modeling，the effects of matrix porosity，aspect ratio，connectivity coefficient and the lamellation crack length，width and numbers of the shale are compared and analyzed. The results show that the P wave velocity is greatly affected by the connectivity coefficient，while the S wave velocity is not affected by the connectivity coefficient. The effect of lamellation crack over 100 microns should not be ignored and its induced anisotropy could not be summarized as the effect of intrinsic anisotropy. Vp/Vs positively correlates with the length of lamellation crack，while the relationship with the number of lamellation crack decreases first and then increases. The method in this paper is applied to the logging data of a practical working area. The P?wave velocity and S?wave velocity prediction in shale reservoirs through this method are highly consistent with actual data，which verifies the effectiveness and applicability of the proposed method，and the method can be used as a bridge in the characterization of unconventional oil and gas reservoirs. ? 2025 Editorial office of Oil Geophysical Prospecting. All rights reserved.

ISSN号：1000-7210

卷、期、页：卷60期3:739-751

发表日期：2025-06-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）,地学领域高质量科技期刊分级目录（国内T1）,CSCD（中国科技引文期刊）（核心）,北大中文核心期刊

发表期刊名称：石油地球物理勘探-Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting

参与作者：杨志芳,卢明辉,晏信飞

通讯作者：邹嘉齐

第一作者：陈双全

论文类型：期刊论文

论文概要：邹嘉齐,陈双全,杨志芳,卢明辉,晏信飞，Rock physical modeling and its application shale lamellation cracks，石油地球物理勘探-Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting，2025，卷60期3:739-751

论文题目：Rock physical modeling and its application shale lamellation cracks