裂缝性致密砂岩油藏注气提高采收率数值模拟研究  

Numerical Simulation of Gas Injection for Enhanced Oil Recovery in Fractured Tight Sandstone Reservoirs

作　　者：孙舒敏 侯宝峰 王少朋 周育瑞 龙海宁 聂法健 SNU Shu-min;HOU Bao-feng;WANG Shao-peng;ZHOU Yu-rui;LONG Hai-ning;NIE Fa-jian(College of Petroleum Engineering,Yangtze University,Wuhan Hubei 430100,China;Exploration and Development Research Institute,Sinopec North China Oil&Gas Company,Zhengzhou Henan 4500063,China;Research Institute of Exploration and Development,Sinopec Zhongyuan Oilfield Company,Zhengzhou Henan 450018,China)

机构地区：[1]长江大学石油工程学院,湖北武汉430100 [2]中石化华北油气分公司勘探开发研究院,河南郑州4500063 [3]中国石化中原油田分公司勘探开发研究院,河南郑州450018

出　　处：《当代化工》2022年第6期1406-1410,共5页Contemporary Chemical Industry

基　　金：国家自然科学基金青年科学基金,纳米颗粒协同阳-非离子Gemini表活剂润湿反转体系的构筑及其机理研究(项目编号:51704036)。

摘　　要：鄂南致密低渗油藏存在不同尺度的裂缝,单一的封窜体系作用效果有限,多尺度裂缝气窜识别、特征分析的研究非常重要,分级封窜体系的筛选更加关键。研究在充分了解掌握国内外气驱过程中气窜识别及封窜体系研究的基础上,综合考虑研究区地质特征、储量规模、裂缝发育程度、开发特征等方面,采用数值模拟手段开展气驱流动动态模拟,根据产出气等指标变化划分不同气驱阶段并开展封窜时机及体系筛选研究。明确气窜判别特征,筛选出静态封窜和动态封窜体系。According to the existence of fractures of different scales in tight and low permeability reservoirs in southern Hubei, the effect of a single sealing channeling system is limited. The research on gas channeling identification and characteristic analysis of multi-scale fractures is very important, and the screening of hierarchical sealing and channeling systems is more critical. On the basis of fully understanding the gas channeling identification and sealing system in the process of gas flooding at home and abroad, and comprehensively considering the geological characteristics, reserve scale, fracture development degree, and development characteristics of the study area,numerical simulation methods were used to carry out gas flooding flow. For dynamic simulation, different gas flooding stages were divided according to the changes of indicators such as produced gas, and research on sealing and channeling timing and system screening was carried out. The characteristics of gas channeling were identified, and static channeling and dynamic channeling systems were screened out.

关 键 词：多尺度裂缝 双重介质建模 数值模拟 分级封窜 

分 类 号：TE328[石油与天然气工程—油气田开发工程]