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标题

页岩气开发中吸附-解吸过程的影响及CO2驱替页岩气的模拟研究

作者

李 毅 张可霓 王笑雨

机构

北京师范大学水科学研究院; 北京师范大学地下水污染控制与修复教育部工程研究中心

摘要

通过数值建模研究瞬时吸附模型与时间依赖模型对页岩气产量的影响,详细的分析了两种吸附-解吸模式的理论模型.通过ECIPSE进行了多重网格的建模,分别采用瞬时吸附、0.1、1、10、100d几种情况进行了研究,结果表明随着吸附-解吸时间的增加页岩气产量降低.针对近年提出的通过注CO2提高页岩气产量的问题,进行了模拟研究显示CO2注入到储层中后吸附到基质中被稳定的封存在页岩气储层中并且提高了页岩气的日产气量,从理论上验证了该增产方式的可行性.

关键词

页岩气,吸附-解吸,CO2,模型

引用

李毅,张可霓,王笑雨. 页岩气开发中吸附-解吸过程的影响及CO_2驱替页岩气的模拟研究[J]. 北京师范大学学报(自然科学版),2015,04:399-403.

基金

能源局科技发展基金专项资助项目(NY20111102-1)

分类号

TE377

DOI

10.16360/j.cnki.jbnuns.2015.04.013

Title

Modeling the impact of adsorption - desorption process in shale gas development and CO2 enhanced gas recovery

Author

Yi Li, ZHANG Keni, WANG Xiaoyu

Affiliations

College of Water Sciences, Beijing Normal University; Engineering Research Center of Groundwater Pollution Control and Remediation of Ministry of Education

Abstract

Impact of transient adsorption model and time dependent adsorption model in shale gas production is investigated. The two theoretical models of adsorption – desorption are analyzed in detail. Multiple grid models are built by ECLIPSE, different conditions, such as transient and time dependent adsorption (0, 0.1, 1, 10, 100 days), are studied. The modeling shows that with increased adsorption – desorption, time shale gas production is reduced. For CO2 enhanced gas recovery, the process of CO2 injection into reservoir is simulated. It illustrates that CO2 is absorbed by the substrate and this enhances gas recovery. It is clearly shown that CO2 is stably stored in the reservoir, therefore feasibility of the idea is verified.

Key words

shale gas, adsorption – desorption, CO2, modeling

cite

Yi Li, ZHANG Keni, WANG Xiaoyu. Modeling the impact of adsorption-desorption process in shale gas development and CO2 enhanced gas recovery[J]. Journal of Beijing Normal University(Natural Science),2015,04:399-403.

DOI

10.16360/j.cnki.jbnuns.2015.04.013

Copyright © 2014 Journal of Beijing Normal University (Natural Science)
Designed by Mr. Sun Chumin. Email: cmsun@mail.bnu.edu.cn