Investigation of flue gas water-alternating gas (flue gas–WAG) injection for enhanced oil recovery and multicomponent flue gas storage in the post-waterflooding reservoir

作     者：Zhou-Hua Wang Bo-Wen Sun Ping Guo Shuo-Shi Wang Huang Liu Yong Liu Dai-Yu Zhou Bo Zhou Zhou-Hua Wang;Bo-Wen Sun;Ping Guo;Shuo-Shi Wang;Huang Liu;Yong Liu;Dai-Yu Zhou;Bo Zhou

作者机构：State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationSouthwest Petroleum UniversityChengdu 610500SichuanChina Research Institute of Exploration and DevelopmentPetroChina Tarim Oilfeld CompanyKorla 841000XinjiangChina Research Institute of Experiment and DetectionPetroChina Xinjiang Oilfeld CompanyKaramay 834000XinjiangChina Xinjiang Laboratory of Petroleum Reserve in ConglomerateKaramay 834000XinjiangChina 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2021年第18卷第3期

页      面：870-882页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0820[工学-石油与天然气工程] 0707[理学-海洋科学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0827[工学-核科学与技术] 0703[理学-化学] 0813[工学-建筑学] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 0814[工学-土木工程] 082002[工学-油气田开发工程] 

基　　金：This work was supported by the Department of Science and Technology of Sichuan Province(2019YFG0457) the National Natural Science Foundation of China(5183000045) the National Major Science and Technology Project of CNPC"Research and Application of Key Technologies for Beneft Development of Volcanic Rock Reservoirs”(2017E-04-05) the PetroChina Major Science and Technology Project(2018E-1805) 

主　　题：Flue gas storage Enhanced oil recovery Flue gas water-alternating gas Material balance model Injection strategy 

摘      要：Flue gas fooding is one of the important technologies to improve oil recovery and achieve greenhouse gas *** order to study multicomponent fue gas storage capacity and enhanced oil recovery(EOR)performance of fue gas water-alternating gas(fue gas-WAG)injection after continuous waterfooding in an oil reservoir,a long core fooding system was *** experimental results showed that the oil recovery factor of fue gas-WAG fooding was increased by 21.25%after continuous waterfooding and fue gas-WAG fooding could further enhance oil recovery and reduce water cut signifcantly.A novel material balance model based on storage mechanism was developed to estimate the multicomponent fue gas storage capacity and storage capacity of each component of fue gas in reservoir oil,water and as free gas in the post-waterfooding *** ultimate storage ratio of fue gas is 16%in the fue gas-WAG fooding *** calculation results of fue gas storage capacity showed that the injection gas storage capacity mainly consists of N_(2) and CO_(2),only N_(2) exists as free gas phase in cores,and other components of injection gas are dissolved in oil and ***,injection strategies from three perspectives for fue gas storage,EOR,and combination of fue gas storage and EOR were proposed,respectively.