| 大口径煤矿应用井施工技术难点及应对措施 |
| 投稿时间：2010-05-13 修订日期：2010-05-13 点此下载全文 |
| 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].钻探工程,2010,37(12):51-53.WANG Ying,LIU Bing-zhi,DU Qing-jun. Technical Difficulties in Large Diameter Well Drilling in Coal Mine Construction and the Countermeasures[J]. Drilling Engineering, 2010,37(12):51-53. |
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| 中文摘要: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。 |
| 中文关键词:大口径井 无表层套管 施工难点 应对措施 |
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| Technical Difficulties in Large Diameter Well Drilling in Coal Mine Construction and the Countermeasures |
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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. |
| keywords:large diameter well no surface case construction difficulty countermeasure |
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