| 陕西黄陇煤田侏罗系煤层气开发关键技术 |
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| 引用本文： | 祁满意.陕西黄陇煤田侏罗系煤层气开发关键技术[J].中国煤炭地质,2014(2):21-24. |
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| 作者姓名： | 祁满意 |
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| 作者单位： | 中煤科工集团西安研究院,陕西西安710054 |
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| 基金项目： | 国家科技重大专项项目（2011ZX05040-003）,中煤科工集团西安研究院院2013年创新项目（2013XAYCX032）. |
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| 摘 要： | 黄陵煤田侏罗纪煤层裂隙发育,渗透率高,煤层气开发的地质条件优越,即将成为我国煤层气开发一个重要的潜在接替领域,根据焦坪矿区和彬长矿区煤层气开发取得的成果,详细探讨了煤层气开发方式、井位部署、钻完井工艺、压裂工艺和排采工艺等关键技术,指出欠平衡钻进、基于储层保护的洞穴完井和分层控压联合排采将是该区煤层气开发技术发展的方向。
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| 关 键 词： | 低煤级 煤层气 勘探开发 黄陇侏罗纪煤田 |
Key Techniques of CBM Exploitation in Shaanxi Huanglong Jurassic system Coals |
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| Qi Manyi.Key Techniques of CBM Exploitation in Shaanxi Huanglong Jurassic system Coals[J].Coal Geology of China,2014(2):21-24. |
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| Authors: | Qi Manyi |
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| Institution: | Qi Manyi (Xian Research Institute, China Coal Technology ＆ Engineering Group Corp, Xian, Shaanxi 710077) |
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| Abstract: | High permeability fissures are well developed in Jurassic coal seams in the Huanglong coalfield. The coalfield has advanta- geous geological condition for CBM exploitation, thus a momentous potential superseding area in the country. Based on CBM exploita- tion results in Jiaoping and Binchang mining areas, detailedly discussed key techniques in CBM exploitation mode, well deployment, drilling and completion, fracturing and drainage technologies. Finally, the author has pointed out that the underbalanced drilling, reser- voir preserving cavern completion and hierarchical pressure controlling combined drainage would be the CBM exploitation technologi- cal development trend in the area. |
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| Keywords: | low coal rank CBM exploration and exploitation Huanglong Jurassic coalfield |
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