| 空气钻井技术在柳林煤层气井的应用 |
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| 引用本文： | 莫日和,郭本广,孟尚志,姚勇,林亮.空气钻井技术在柳林煤层气井的应用[J].探矿工程,2012,39(2):35-38. |
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| 作者姓名： | 莫日和 郭本广 孟尚志 姚勇 林亮 |
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| 作者单位： | 中联煤层气有限责任公司,北京100011 |
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| 摘 要： | 空气钻井技术是煤层气高效开发的重要钻井技术,具有循环压耗低、携砂能力强、井眼净化好的特点,同时能有效防止井漏、保护储层、提高机械钻速等,但面临着井壁稳定、水动力条件等复杂的工程和地质难题,在柳林煤层气井施工中,开展了岩层特征、水文地质条件、煤层含水特性、泡沫钻井液设计等研究,针对地层特点,设计了适合空气钻井的配套工艺技术。通过柳林地区7口井的施工,钻井周期缩短50%,储层得到有效保护,直井产气量达到1000 m3/d,水平井产气量达15000 m3/d,初步取得了良好的示范效果,推广应用前景广阔。
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| 关 键 词： | 空气钻井 水文地质 煤层气 钻井技术 柳林地区 |
| 收稿时间： | 2011/6/30 0:00:00 |
| 修稿时间： | 2011/7/12 0:00:00 |
Application of Air Drilling Technology in CBM Well of Liulin Area |
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| MO Ri-he,GUO Ben-guang,MENG Shang-zhi,YAO Yong and LIN Liang.Application of Air Drilling Technology in CBM Well of Liulin Area[J].Exploration Engineering(Drilling & Tunneling),2012,39(2):35-38. |
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| Authors: | MO Ri-he GUO Ben-guang MENG Shang-zhi YAO Yong and LIN Liang |
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| Institution: | (China United Coalbed Methane Corporation,Ltd.,Beijing 100011,China) |
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| Abstract: | Air drilling is an important drilling technology to effectively develope coalbed methane with the characteristics of low circulating pressure loss,strong carrying capacity,better hole cleaning and advantages of preventing wellbore leakage and protecting reservoir.But it also faces complicated engineering and geological problems such as wellbore stabilization and hydrodynamic condition.Research was conducted on rock strata features,hydrogeololgy condition,water saturation character and foam drilling mud design;and according to the formation characteristics,the matching technology suitable for air drilling was designed in Liulin district.During the construction of 7 coalbed methane wells in liulin district,drilling period was shortened by 50%,reservoir was protected effectively,and the production of vertical wells and horizontal well reached 1000 cubic meters and 15000 cubic meters with great applicaton prospect. |
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| Keywords: | air drilling hydrogeology coalbed methane drilling technology Liulin district |
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