| 低渗欠饱和煤层气井产能分析新方法研究 |
| |
| 引用本文： | 孙政,李相方,徐兵祥,肖芝华,张砚,苗亚楠,彭泽阳,王小果. 低渗欠饱和煤层气井产能分析新方法研究[J]. 煤炭科学技术, 2019, 0(6): 238-243 |
| |
| 作者姓名： | 孙政 李相方 徐兵祥 肖芝华 张砚 苗亚楠 彭泽阳 王小果 |
| |
| 作者单位： | 中国石油大学(北京)石油工程学院教育部重点实验室;中海油研究总院新能源研究中心;中联煤层气国家工程研究中心有限责任公司;中国石油西南油气田分公司川西北气矿;中国石油北京油气调控中心 |
| |
| 基金项目： | 国家科技重大专项资助项目(2016ZX05042,2017ZX05039);国家自然科学基金资助项目(51504269,51490654) |
| |
| 摘 要： | 为准确获取煤层气井物理性能参数,提出了一种简便的基于生产初期排水数据的产能分析新方法,首先,考虑煤层普遍具有的低渗特征,引入调查半径公式,计算各个时刻煤层气井压力波前缘位置,然后,基于连续稳态方法,推导各个时刻考虑应力敏感与压力波扩展的稳态渗流方程;最后,对渗流方程进行线性化处理,得到适用于低渗欠饱和煤层气井的产能分析新方法,该方法的可靠性与应用性通过与数值模拟以及现场实例对比进行研究。研究结果表明:新方法预测的渗透率与实际渗透率间的误差为2.38%,表皮因子的误差为6.59%,满足现场工程应用需求,新方法能够准确获取储层物性参数,为气井后期产能预测,生产制度调整提供有效理论依据。
|
| 关 键 词： | 煤层气井 低渗 欠饱和 应力敏感 产能分析方法 |
Study on novel method of production capacity analysis on low permeability and unsaturated coalbed methane well |
| |
| SUN Zheng,LI Xiangfang,XU Bingxiang,XIAO Zhihua,MIAO Yanan,PENG Zeyang,WANG Xiaoguo. Study on novel method of production capacity analysis on low permeability and unsaturated coalbed methane well[J]. Coal Science and Technology, 2019, 0(6): 238-243 |
| |
| Authors: | SUN Zheng LI Xiangfang XU Bingxiang XIAO Zhihua MIAO Yanan PENG Zeyang WANG Xiaoguo |
| |
| Affiliation: | (MOE Key Lab,School of Petroleum Engineering,China University of Petroleum (Beijing),Beijing102249,China;New Energy Research Center,CNOOC Research Institute,Beijing100028,China;National Engineering Research Center Limited,China United Coalbed Methane Company Limited,Beijing100095,China;Northwest Sichuan Gas Mine,Southwest Oil and Gas Field Company,China National Petroleum Corporation,Jiangyou621700,China;Beijing Oil&Gas Control Center,National Petroleum Corporation,Beijing100007,China) |
| |
| Abstract: | SUN Zheng;LI Xiangfang;XU Bingxiang;XIAO Zhihua;MIAO Yanan;PENG Zeyang;WANG Xiaoguo(MOE Key Lab,School of Petroleum Engineering,China University of Petroleum (Beijing),Beijing102249,China;New Energy Research Center,CNOOC Research Institute,Beijing100028,China;National Engineering Research Center Limited,China United Coalbed Methane Company Limited,Beijing100095,China;Northwest Sichuan Gas Mine,Southwest Oil and Gas Field Company,China National Petroleum Corporation,Jiangyou621700,China;Beijing Oil&Gas Control Center,National Petroleum Corporation,Beijing100007,China) |
| |
| Keywords: | coalbed methane well low permeability unsaturated stress sensitivity production capacity analysis method |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
