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煤层气多分支井形态分析
引用本文:张 辉,于 洋,高德利,郑江莉.煤层气多分支井形态分析[J].西南石油大学学报(社会科学版),2013,33(4):101-106.
作者姓名:张 辉  于 洋  高德利  郑江莉
作者单位:1. 中国石油大学石油工程教育部重点实验室, 北京 昌平 102249;2. 中国石化西北油田分公司工程技术研究院, 新疆 乌鲁木齐 830011;3. 中国石化西北油田分公司工程监督中心, 新疆 轮台 941600
摘    要:煤层气井开采的第三阶段是煤层气井开采期限的主要部分, 前人研究表明可用真实气体拟压力法来精确描述这一阶段的渗流规律。因此, 根据镜像反映和压力叠加原理, 建立了上下封闭煤层气藏中煤层气多分支井压力分布方程。考虑多分支井沿程流动压降对产能的影响, 建立煤层气多分支井稳定渗流时的产能计算耦合模型, 给出了模型的求解方法, 分析了多分支井形态参数对煤层气多分支井产能的影响规律。

关 键 词:煤层气    多分支井    稳定渗流    耦合模型    分支井形态

Analysis on Configuration of Multi-Lateral Well for Coalbed Methane
ZHANG Hui,YU Yang,GAO De-li,ZHENG Jiang-li.Analysis on Configuration of Multi-Lateral Well for Coalbed Methane[J].Journal of Southwest Petroleum University(Social Sciences Edition),2013,33(4):101-106.
Authors:ZHANG Hui  YU Yang  GAO De-li  ZHENG Jiang-li
Institution:1. MOE Key Lab of Petroleum Engineering, China University of Petroleum ( Beijing ) , Changping, Beijing 102249, China;2. Research Institute of Engineering, Northwest Oilfield Branch, SINOPEC, Urumchi, Xinjiang 830011, China; 3. SupervisionCenter of Engineering, Northwest Oilfield Branch, SINOPEC, Luntai, Xinjiang 941600, Chian
Abstract:The third phase of coal-bed gas exploitation lasts long time, so stable seepage laws of this phase shouldbe studied. Pseudo pressure function is adopted to resolve this problem by J. P. Seidle. The pressure distributionequations in the formation of multi-lateral well for coalbed methane are constructed on the basis of pressure super-position and mirror image reflection theory. Pressure drop influence on the deliverability is considered. By couplingwellbore flow and reservoir stable seepage flow, the deliverability calculation model and its solution method formulti-lateral well are established. Rules of influence on deliverability of multi-lateral well for coalbed methane isanalyzed.
Keywords:coalbed methane                                                                                                                        multi-lateral well                                                                                                                        steady seepage                                                                                                                        coupling model                                                                                                                        configuration of laterals20
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