罗家寨气田CO_(2)地质封存数值模拟研究  

Numerical Simulation of CO_(2) Geological Storage in Luojiazhai Gas Reservoir

作　　者：罗瑜[1] 母若愚 张婷婷[2] 秦楠 周俊豪 甘泉 李波[2] LUO Yu;MU Ruoyu;ZHANG Tingting;QIN Nan;ZHOU Junhao;GAN Quan;LI Bo(PetroChina Southwest Oil&Gas Field Branch Exploration&Development Research Institute,Chengdu 610095,China;School of Resources and Security,Chongqing University,Chongqing 400044,China)

机构地区：[1]中国石油西南油气田分公司勘探开发研究院,成都610095 [2]重庆大学资源与安全学院,重庆400044

出　　处：《新能源进展》2024年第2期201-208,共8页Advances in New and Renewable Energy

基　　金：中国石油油气与新能源公司重大科技项目(2022KT2303)。

摘　　要：基于罗家寨嘉陵江组建立三维地质模型,利用FLAC3D-TOUGHREACT模拟评估了CO_(2)注入地层后的地质压力、储层物性变化和CO_(2)运移规律等。结果表明,在CO_(2)注入的10年间,CO_(2)的注入提高了整个地层压力,高压场以注入井为中心呈现梯度递减向四周扩大。储层的孔渗性随着CO_(2)的注入逐渐增大,而盖层物性未发生明显变化。CO_(2)羽流主要在中间储层中运移,未突破上下盖层。此外,通过模拟研究发现嘉陵江组的CO_(2)总封存量为3.211×10^(7)kg。结果说明嘉陵江组所选层位可有效封存CO_(2)。A three-dimensional geological model was established based on the Jialingjiang formation in Luojiazhai,and FLAC3D-TOUGHREACT was used to simulate and evaluate the formation pressure,reservoir physical properties and CO_(2) migration law after CO_(2) injection into the formation.The results showed that during the 10 years of CO_(2) injection,the injection of CO_(2) increased the whole formation pressure,and the high-pressure field showed a gradient decrease centered on the injection well and expanded around.The porosity and permeability of the reservoir gradually increased with the injection of CO_(2),while the physical properties of the cap rock did not change significantly.The CO_(2) plume mainly migrated in the intermediate reservoir and did not break through the cap rocks.The simulation study showed that the total CO_(2) storage capacity of Jialingjiang formation was 3.211×10^(7) kg.Results indicated that the selected layers of the Jialingjiang Formation can effectively store CO_(2).

关 键 词：二氧化碳埋存 枯竭气藏 数值模拟 嘉陵江组 

分 类 号：TK-9[动力工程及工程热物理] X701[环境科学与工程—环境工程]