| 大口径煤矿应用井施工技术难点及应对措施 |
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| 引用本文： | 王英,刘炳志,杜庆军. 大口径煤矿应用井施工技术难点及应对措施[J]. 探矿工程, 2010, 37(12): 51-53 |
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| 作者姓名： | 王英 刘炳志 杜庆军 |
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| 作者单位： | 山东省煤田地质局第三勘探队,山东泰安271000 |
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| 摘 要： | 结合山东省龙固矿井煤矿应用井施工工程实际,阐述了在巨厚表土层中,无表层套管施工的优点及施工难度,并提出了应对措施：通过塔式钻具防斜、陀螺仪测斜、螺杆钻纠斜、优质泥浆护壁、浮力器平衡套管重力、气动扳手减轻工人劳动强度等措施,提前完成了2口井的施工。同时,由于无表层套管,大大降低了施工成本,节约了施工时间。
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| 关 键 词： | 大口径井 无表层套管 施工难点 应对措施 |
| 收稿时间： | 2010-05-13 |
| 修稿时间： | 2010-05-13 |
Technical Difficulties in Large Diameter Well Drilling in Coal Mine Construction and the Countermeasures |
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| WANG Ying,LIU Bing-zhi and DU Qing-jun. Technical Difficulties in Large Diameter Well Drilling in Coal Mine Construction and the Countermeasures[J]. Exploration Engineering:Rock & Soil Drilling and Tunneling, 2010, 37(12): 51-53 |
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| Authors: | WANG Ying LIU Bing-zhi DU Qing-jun |
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| Affiliation: | (The Third Geological Brigade of Shandong Provincial Bureau of Coal Geology,Tai＇an Shandong 271000,China) |
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| Abstract: | Based on a well drilling engineering of a mine in Shandong,the paper introduced the advantages and difficulties of construction without surface casing drilling with the countermeasures.The construction of 2 wells were fulfilled ahead of time through deviation control by tower drilling tools,inclination survey by gyro inclinometer,wall protection by high-quality mud and working intensity reducing by buoyancy device and impact wrench.Drilling without surface casing greatly saved the construction cost. |
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| Keywords: | large diameter well no surface case construction difficulty countermeasure |
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