碳酸盐岩储层酸蚀蚓孔物模实验研究进展  

Research Progress of Wormhole Physical Modeling in Carbonate Formation

作　　者：王达 周福建[1] 刘合[3] 冯浦涌[2] 邱守美[2] 寇春松 WANG Da;ZHOU Fujian;LIU He;FENG Puyong;QIU Shoumei;KOU Chunsong(Unconventional Oil&Gas Science and Technology Research Institute,China University of Petroleum(Beijing),Beijing 102249,China;Production Division,China Oilfield Service Ltd.,Tianjin 300450,China;PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100083,China)

机构地区：[1]中国石油大学(北京)非常规油气科学技术研究院 [2]中海油田服务股份有限公司油田生产事业部 [3]中国石油勘探开发研究院

出　　处：《钻采工艺》2024年第3期73-81,共9页Drilling & Production Technology

基　　金：国家科技重大专项“丝绸之路经济带碳酸盐岩高效开发技术——中亚和中东地区复杂碳酸盐岩油气藏关键技术研究与应用”(编号:ZX20170076)。

摘　　要：酸蚀蚓孔是碳酸盐岩储层基质酸化最典型、最基本的特征,其尺寸和形态对酸化效果有着重要影响,关于酸蚀蚓孔的物模研究对于碳酸盐岩储层基质酸化机理研究及现场施工设计具有重要指导意义。文章分别综述了线性流和径向流两种岩心流动实验研究的重要成果和最新进展,指出酸蚀蚓孔实时表征是线性流岩心流动实验研究的发展方向,针对渗透率、尺寸等岩心参数对酸蚀蚓孔发育的影响,应结合融合电测和示踪剂的蚓孔实时表征方法进行进一步研究。针对酸液突破岩心时孔隙体积倍数(PVBT)与岩心参数之间关系的认识,后续应进一步升级径向流岩心流动实验及表征设备,从而开展不同因素对酸蚀蚓孔发育影响的研究,重点解决酸蚀蚓孔从实验尺度升级到现场尺度问题。建议加强电测法室外模拟实验及现场应用研究,从而实现实验尺度和现场尺度酸蚀蚓孔的实时观测和表征。Wormhole is the most typical and basic feature of carbonate formation matrix acidizing,and its size and morphology is of vital importance to acidizing result.The study on the physical experiments of wormhole has guiding significance for the study of acidizing mechanisms and treatment designs of the carbonate reservoir.In this paper,the important achievements and latest progresses of the linear and radial linear core flow tests are reviewed,and it was pointed out that the real-time characterization of acid-etched wormholes was the development direction of linear core flow test,and the controversy over the influence of core parameters such as permeabilities and dimensions on the wormhole propagation should be further studied by the real-time wormhole characterization method,using of electrical resistivity logging and and tracers.To investigate the relationship between acid volume to break through and core parameters,it was suggested to upgrade the core flow experiment and characterization equipments,so as to conduct research on the influence of different parameters on wormhole propagation,in which the upscale from the laboratory scale to field scale should be highlighted.It was also suggested to strengthen the field application of the electrical logging method,so as to realize the lab scale and field scale wormholing real-time observation and characterization.

关 键 词：碳酸盐岩 基质酸化 酸蚀蚓孔 岩心流动实验 物模实验 储层改造 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程]