海相油气地质2025，Vol.30Issue(1)：1-16,16.DOI:10.3969/j.issn.1672-9854.2025.01.001
碳酸盐岩气藏提高采收率的内涵、技术方法及前景展望
Connotation,technical methods,and prospects for enhanced gas recovery in carbonate gas reservoirs
摘要
Abstract
China's carbonate gas reservoirs are facing a strategic situation of enhanced gas recovery(EGR).Currently,there is no universally applicable theoretical and technical system for improving recovery rates in carbonate gas reservoirs both domestically and internationally.This article summarizes the theoretical research and field practice of EGR of carbonate gas reservoirs in China in the past 70 years,and summarizes five research paradigms from four levels of"Philosophy,Strategy,Tactics,Execution".Based on the connotation of EGR,a calculation method for gas reservoir recovery rate is established from the perspective of engineering philosophy,and the technical methods and key issues for evaluating gas reservoir recovery rate are discussed in detail.By comparing the connotation,technical methods,and practical status of enhanced gas recovery in five typical carbonate gas reservoirs,the following three suggestions are put forward:(1)Improve the systematic evaluation of gas reservoir recovery efficiency,integrate various research data and results from the perspective of the whole gas reservoir,and establish the workflow of understanding→new data supplement→re-understanding under the framework of"static and dynamic data integration";(2)Quantitatively evaluate the contribution of different strategies to EGR,conduct field research and verify primary data,fully compare theoretical models with field data,improve the match of static and dynamic descriptions,and repeatedly adjust and establish reasonable prediction models;(3)Strengthen the comparative study of different strategies to enhance gas reservoir recovery,gradually upgrade the scattered different strategies from perceptual understanding to qualitative and quantitative understanding,and quantitatively evaluate the EGR values of different strategies in the research area,and quantify the role of different technologies in improving gas reservoir recovery.The research results can promote the concept and theoretical technology progress of EGR in China's carbonate gas reservoirs and ensure national energy security.关键词
碳酸盐岩气藏/提高采收率/定量化评价/可对比性/矿场实践/研究展望Key words
carbonate gas reservoirs/enhanced gas recovery/quantitative evaluation/comparability/field practice/re-search prospects分类
石油、天然气工程引用本文复制引用
蔡珺君,张连进,张飞,徐睿,周芳芳,田野..碳酸盐岩气藏提高采收率的内涵、技术方法及前景展望[J].海相油气地质,2025,30(1):1-16,16.基金项目
本文受中国石油天然气股份有限公司重大专项课题"碳酸盐岩油气藏提高采收率关键技术研究——大型碳酸盐岩气田控水提高采收率技术研究"(编号:2021DJ1505),中国石油西南油气田公司科技项目"安岳气田台内灯四气藏储渗体分类评价及有效井模式研究"(编号:20230303-01)联合资助 （编号:2021DJ1505）
