| 松软煤层水平对接井筛管完井工艺技术 |
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| 引用本文： | 赵永哲. 松软煤层水平对接井筛管完井工艺技术[J]. 煤田地质与勘探, 2014, 42(4): 100-102. DOI: 10.3969/j.issn.1001-1986.2014.04.023 |
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| 作者姓名： | 赵永哲 |
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| 作者单位： | 1.中煤科工集团西安研究院有限公司, 陕西西安 710077 |
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| 基金项目： | 国家科技重大专项课题(2008ZX05041-001) |
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| 摘 要： | 松软煤层中开发煤层气，由于地质条件复杂、井壁不稳定、产气通道易堵塞等，致使松软煤层中水平对接井的抽采效果较差。重点研究了松软煤层水平对接井筛管完井工艺技术，包括筛管选型、配套设备机具和下管工艺技术等。通过在晋城成庄区块现场应用，3口水平井煤层段下入筛管总长度达到1466 m，取得了良好的应用效果。
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| 关 键 词： | 松软煤层 煤层气 水平对接井 筛管完井 煤层气开发 |
| 收稿时间： | 2013-10-30 |
Well completion technology by screen pipe for horizontally-intersected well in soft coal seam |
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| ZHAO Yongzhe. Well completion technology by screen pipe for horizontally-intersected well in soft coal seam[J]. COAL GEOLOGY & EXPLORATION, 2014, 42(4): 100-102. DOI: 10.3969/j.issn.1001-1986.2014.04.023 |
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| Authors: | ZHAO Yongzhe |
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| Affiliation: | 1.Xi'an Research Institute, China Coal Technology and Engineering Group Corp, Xi'an 710077, China |
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| Abstract: | During the development of coalbed methane(CBM) in soft coal seam, the complicated geological conditions, the borehole sidewall instability and blocking of gas -producing channels lead to poor effect of gas drainage with horizontally-intersected wells in soft coal seam. The well completion technology directly affects the drainage effect of CBM, and in this paper, the well completion technology by screen pipe for horizontally-intersected well is studied, including selection of the screen pipe, development of equipment and screen pipe running operation technique, etc. Through field application in Jincheng-Chengzhuang coal mines, three horizontally-intersected wells were completed with a total length of 1466m screen pipe, and its application effect is good. |
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| Keywords: | soft coal seam coalbed methane horizontally-intersected well well completion with screen pipe CBM development |
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