| 煤层气羽状水平井开采数值模拟研究 |
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| 引用本文： | 张冬丽,王新海.煤层气羽状水平井开采数值模拟研究[J].煤田地质与勘探,2005,33(4):47-51. |
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| 作者姓名： | 张冬丽 王新海 |
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| 作者单位： | 中石化石油勘探开发研究院油藏所,北京,100083;长江大学地球科学学院,湖北,荆州,434023 |
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| 基金项目： | 国家“973”煤层气项目（编号2002CB211709） |
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| 摘 要： | 建立了煤层气定向羽状水平井开采的数学模型,该模型考虑了地层非均质和各向异性的影响、渗透率的压力敏感性和主支、分支井筒内压降影响;本文给出了数值模拟方法,实现了数值模拟计算;并分别对理论模型和樊庄区块煤层气试验区所设计的羽状水平井进行产能预测,证明了模型及算法的正确性。
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| 关 键 词： | 煤层气 数值模拟 羽状水平井 |
| 文章编号： | 1001-1986（2005）04-0047-05 |
| 收稿时间： | 2004-09-27 |
| 修稿时间： | 2004年9月27日 |
Numerical simulation of Pinnate horizontal multilateral well for coalbed gas recovery |
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| ZHANG Dong-li,WANG Xin-hai.Numerical simulation of Pinnate horizontal multilateral well for coalbed gas recovery[J].Coal Geology & Exploration,2005,33(4):47-51. |
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| Authors: | ZHANG Dong-li WANG Xin-hai |
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| Institution: | 1. Sinopec Exploration & Production Research Institute, Beijing 100083, China;2. Geoscience Institute of Yangtze River University, Jingzhou 434023, China |
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| Abstract: | A mathematical model of Pinnate horizontal multilateral well for coalbed gas recovery is developed. Such factors as inhomogeneity and anisotropy of stratum, sensitivity of permeability to pressure and friction and acceleration loss in wellbore are considered in this model. The numerical simulation method is presented and used to simulate the gas rate and water rate with one theory, model and one field model, which shows the validity of the model and algorithm. |
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| Keywords: | coalbed gas Pirmate horizontal well numerical simulation |
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