文档介绍：钻孔漏失是钻探工程多发性和灾难性事故之一。潞安矿区钻孔漏失现象分布广泛,漏失量大,严重影响钻进效率,极大增加钻探成本,是潞安矿区煤田钻探生产实践中急需解决的工程难题。因此,确定漏失规律和揭示漏失机理,探索和研制防漏堵漏方案及工艺,对提高钻探工程质量,增加钻探工程效益具有现实和长远意义。
The determination of the leakage pattern and mechanism, as well as the exploration and development for the scheme and technology of the leakage resistance and plugging are of realistic and long-term significance to the enhancement of the drilling engineering quality and benefit,
due to the fact that the widespread and a large amout of circulation loss, one of the multiple and cataclysmic accidents in drilling engineering, and also a dissolved engineering roadblock in the drilling production practice of Lu’an mining area,
exerts a serious influence on the drilling efficiency and causes a great increase in the drilling cost .
在分析潞安矿区地质条件、钻探生产工艺、钻孔堵漏研究现状基础上,探索并划分了潞安矿区钻孔漏失类型,调查并研究了漏失地层特征与分布规律,分析并确定了漳村井田煤田钻孔漏失原因;研制了测漏、堵漏装置;通过大量室内试验,设计并优化了适用于潞安矿区复杂多漏失地层的防漏和堵漏方案及工艺;防漏和堵漏技术在工程现场中得到了很好的实践效果。
Based on the analysis for the geological conditions of Lu’an mining area, the drilling production technology and the present situation of plugging, the exploration and division for the circulation loss mode of Lu’an mining area, and the investigation and research on the leaking formation pattern and distribution were carried out to study and determine the reasons for the drilling circulation loss of Zhangcun coal mine.
Furthermore, with new devices for