注二氧化碳提高煤层气采收率数值模拟
Numerical Simulation Study on Carbon Dioxide Injection to Enhance CBM Recovery
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- 引用格式:
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赵金,张遂安,马东民,湛凤巍,叶姜,安腾飞,张维驿.注二氧化碳提高煤层气采收率数值模拟[J].天然气与石油,2012,30(1):0.doi:
.Numerical Simulation Study on Carbon Dioxide Injection to Enhance CBM Recovery[J].Natural Gas and Oil,2012,30(1):0.doi:
- DOI:
- 作者:
- 赵 金1 张遂安1 马东民2 湛凤巍1 叶 姜1 安腾飞1 张维驿3
- 作者单位:
- 1.中国石油大学（北京）气体能源开发与利用教育部工程研究中心，北京 102249,2.西安科技大学地质与环境学院，陕西 西安 710054；3.中国地质大学（北京）能源学院，北京 100083
- 关键词:
- 二氧化碳；煤层气；提高采收率；数值模拟
Carbon dioxide； CBM； Increasing CBM recovery； Numerical simulation
- 摘要:
- 随着全球温室效应的逐渐增强，CO2的处理已成为各国关注的问题。在煤层气开采中，利用CO2提高煤层气采收率也成为研究热点。针对煤层气开发过程中的产气量低的问题，从物理模拟方法和数值模拟角度出发，进行了CO2置换煤层气的等温吸附实验以及置换过程中的浓度测定研究，并对山西晋城地区运用ECLIPSE软件进行了数值模拟研究。研究结果表明，CO2能提高煤层气的产量和采收率，使产量保持稳定，采收率高达94 %，同时也能有效地减少CO2的排放，缓解温室效应。
As global greenhouse effect becomes more and more fierce， emission of carbon dioxide has caused wide attention in the world. In CBM development， utilization of carbon dioxide for CBM recovery increase has become a research focus.?摇Owing to low productivity in CBM development， applied are physical simulation and numerical simulation to conduct isothermal adsorption and desorption experiment of replacement of CBM with carbon dioxide and concentration determination research in the replacement process， and applied is eclipse software to conduct numerical simulation study on CBM in Jincheng region in Shanxi Province. Study results show that replacement of coalbed methane with carbon dioxide can increase CBM output and recovery and make output remain stable and recovery reach up to 94% with less water production rate， which can also effectively reduce emission of carbon dioxide and alleviate greenhouse effect.
