Desorption area and pressure-drop region of wells in a homogeneous coalbed
文献类型：期刊论文
| 作者 | Wan YZ ; Liu YW(刘曰武); Ouyang WP; Liu WC; Han GF; Liu, YW (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
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| 刊名 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
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| 出版日期 | 2016-01 |
| 卷号 | 28页码:1-14 |
| 关键词 | Cbm Desorption Area Finite Element Method Contour |
| ISSN号 | 1875-5100 |
| DOI | 10.1016/j.jngse.2015.11.026 |
| 产权排序 | [Wan, Yizhao; Liu, Yuewu; Liu, Wenchao; Han, Guofeng] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; [Ouyang, Weiping] CNPC, Chuangqing Drilling Engn Co Ltd, Chongqing Downhole Technol Co, Xian 710018, Peoples R China |
| 文献子类 | 期刊论文 |
| 英文摘要 | The coalbed methane (CBM) desorption area is highly important in the placement of wells to produce an adequate working system. This paper develops a homogeneous seepage model of CBM that incorporates desorption and uses a finite-element method to obtain the pressure field in complex boundary cases influenced by adjacent wells. The pressure field is presented in a 2D and pseudo-3D form that visually demonstrates the shape of the pressure profile and the pressure expansion. A method of combined numerical computation and contour drawing technology is used to determine the CBM desorption area and pressure drop region. By analyzing the main factors that affect the CBM desorption region, we demonstrate that a higher value of critical desorption pressure yields a larger desorption area of the seam. The effect of the permeability is different from the value of the critical desorption. This effect is determined by the critical desorption pressure level and the intersection of pressure profiles with different permeabilities. Permeability anisotropy leads to a desorption area with an elliptical shape. We also demonstrate that a greater flux of methane will result in a greater desorption region, and the effects of the distance between wells and the desorption area are closely related to the permeability. The developed model is applied in a field case to predict the desorption area. (C) 2015 Elsevier B.V. All rights reserved. |
| 分类号 | 二类/Q2 |
| URL标识 | 查看原文 |
| WOS关键词 | ORGANIC RANKINE-CYCLE ; SUPERCRITICAL CO2 ; TEMPERATURE ; CAPTURE ; REACTOR ; ENERGY ; SYSTEM |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000370457700002 |
| 资助机构 | The authors would like to acknowledge the funding by the project (Grant No. 51404232) sponsored by the Natural Science Foundation of China (NSFC), the National Science and Technology Major Project (Grant No. 2011ZX05038003) and the project (Grant No. 2014M561074) by the China Postdoctoral Science Foundation. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58669]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Liu, YW (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wan YZ,Liu YW,Ouyang WP,et al. Desorption area and pressure-drop region of wells in a homogeneous coalbed[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2016,28:1-14. |
| APA | Wan YZ,刘曰武,Ouyang WP,Liu WC,Han GF,&Liu, YW .(2016).Desorption area and pressure-drop region of wells in a homogeneous coalbed.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,28,1-14. |
| MLA | Wan YZ,et al."Desorption area and pressure-drop region of wells in a homogeneous coalbed".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 28(2016):1-14. |
入库方式： OAI收割
来源：力学研究所
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