页岩储层孔隙连通性表征方法研究进展  

Advances in pore connectivity of shale reservoirs

作　　者：董庆浩 熊生春[2,3] 赵庆 沈瑞[2,3] 孙文臣 徐蕾 杨航 王果 苏合英 DONG Qinghao;XIONG Shengchun;ZHAO Qing;SHEN Rui;SUN Wenchen;XU Lei;YANG Hang;WANG Guo;SU Heying(School of Engineering and Science,University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Porous Flow&Fluid Mechanics,Chinese Academy of Sciences,Langfang 065007,China;Research Institute of Petroleum Exploration&Development,PetroChina,Beijing 100083,China;PetroChina Bohai Drilling Engineering Co.,Ltd.,No.2 Drilling Engineering Branch,Langfang 065007,China)

机构地区：[1]中国科学院大学工程科学学院,北京100049 [2]中国科学院渗流流体力学研究所,河北廊坊065007 [3]中国石油勘探开发研究院,北京100083 [4]中国石油集团渤海钻探工程有限公司第二钻井工程分公司,河北廊坊065007

出　　处：《应用化工》2024年第11期2740-2745,2751,共7页Applied Chemical Industry

基　　金：中国石油天然气集团有限公司前瞻性基础性科技专项(2023ZZ08)。

摘　　要：页岩油气储层通常具有复杂的孔隙网络系统,其孔隙连通性对于油气的流动起着重要作用。储层的孔隙连通性可与渗透率、孔隙度、可动流体百分数等参数共同作为储层评价的重要参数。介绍了4种表征储层孔隙连通性的方法:重复高压压汞实验、高压伍德合金注入实验、对比匹配小角中子散射实验以及核磁共振-自发渗吸实验。此外调研了几种方法的应用现状,有助于了解不同方法在实际应用中的优劣势,为页岩油气储层的微观孔隙表征提供参考,能够更全面地理解页岩油气储层的孔隙连通性特征。Shale oil and gas reservoir usually has a complex pore network system,and its pore connectivity plays an important role in oil and gas flow.Pore connectivity of reservoir can be used as an important parameter in reservoir evaluation together with permeability,porosity and saturation of movable fluid.This paper introduces four methods for characterizing reservoir pore connectivity(repeated-high-pressure mercury injection experiment,high-pressure Wood’s metal injection experiment,contrast matched small Angle neutron scattering experiment,and imbibition experiment.In addition,the application status of several methods is investigated,which helps to understand the advantages and disadvantages of different methods in practical application,as well as provides reference for the microscopic pore characterization of shale oil and gas reservoir,and it’s can more comprehensively understand the pore connectivity characteristics of shale oil and gas reservoir.

关 键 词：孔隙连通性 重复高压压汞 核磁共振实验 渗吸实验 高压伍德合金注入实验 对比匹配小角中子散射实验 

分 类 号：TQ012[化学工程] TQ016