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| 煤粉对煤层气直井产量的影响 | |
| 引用本文： | 马洪泽,李治平,刘翰林,许声瑞,张瑞.煤粉对煤层气直井产量的影响[J].煤矿开采,2013,18(1):104-106. |
| 作者姓名： | 马洪泽 李治平 刘翰林 许声瑞 张瑞 |
| 作者单位： | 1. 中国地质大学(北京),北京,100083 2. 长庆油田第三采油厂新寨作业区,陕西延安,717600 3. 青海油田涩北作业公司,青海格尔木,816000 |
| 基金项目： | 国家科技重大专项煤层气排采工艺与数值模拟技术项目:煤层气井生产动态变化特征和监测技术(2009ZX05038);非常规天然气能源地质评价与开发工程北京市重点实验室2012年阶梯计划项目(Z121109002812011) |
| 摘 要： | 根据煤层气藏的特点,利用渗透率平行路径模型和煤层气渗流控制方程推导稳态情形时煤层气直井产量公式。结果表明,对于不同的非堵塞路径占总孔隙路径的百分比,煤粉产出时煤层渗透率和煤层气直井产量有可能增大,也有可能减小。实例计算结果与实际生产资料一致,证明了该方法的可靠性。 |
| 关 键 词： | 煤粉 渗透率 煤层气直井产量 |
Influence of Coal Ash on Coalbed Methane Output of Vertical Shaft |
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| MA Hong-zhe , LI Zhi-ping , LIU Han-lin , XU Sheng-rui , ZHANG Rui.Influence of Coal Ash on Coalbed Methane Output of Vertical Shaft[J].Coal Mining Technology,2013,18(1):104-106. | |
| Authors: | MA Hong-zhe LI Zhi-ping LIU Han-lin XU Sheng-rui ZHANG Rui |
| Affiliation: | 1.China University of Geosciences(Beijing),Beijing 100083,China; 2.Xinzhai Working Area,the 3rd Oil Production Plant,Changqing Oil Field,Yan’an 717600,China; 3.Sebei Working Company,Qinghai Oil Field,Golmud 816000,China) |
| Abstract: | On the basis of coalbed methane reservoir characteristic,equation of coalbed output from vertical shaft was deduced by applying permeability parallel path model and seepage control equations.Results showed that for different percentages of unlocked path over global pore path,coal-seam permeability and CBM output from vertical shaft would increase and also would decrease.Calculation result met actual data,which proved the method reliable. |
| Keywords: | coal ash permeability CBM output from vertical shaft |
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