煤矿安全2024，Vol.55Issue(1)：192-199,8.DOI:10.13347/j.cnki.mkaq.20221964
基于定向钻探技术的深部矿井突水点封堵方案优化
Optimization of deep mine water inrush point plugging scheme based on directional drilling technology
摘要
Abstract
With the increase of mine development depth,the problems such as high difficulty in plugging deep water inrush points and large quantities of work have become increasingly prominent.The surface multi branch horizontal directional drilling techno-logy is an effective means to solve the above problems,and its construction technical difficulties are mainly well trajectory control,well wall stability control and grouting effect improvement.Based on the above problems,taking Wucun Mine in Jiaozuo Mining Area as an example,the optimal plugging scheme for water inrush points is proposed.The structure of PDM drill is improved by adding eccentric cushion block to improve the control of well trajectory;the potassium ammonium based polymer drilling fluid sys-tem is used to optimize the proportioning scheme of the treating agent to improve the wellbore stability control;variable frequency speed regulating grouting pump and secondary mixing process are adopted to improve the grouting effect.The results show that the maximum drop of water level in Wucun Mine shaft is 6.53 m after the completion of the project,and the water blocking effect is sig-nificant.关键词
突水点封堵/定向钻探技术/螺杆钻具/聚合物钻井液/注浆泵/水害治理Key words
water inrush point blocking/directional drilling technology/PDM drill/polymer drilling fluid/grouting pump/water damage control分类
矿业与冶金引用本文复制引用
薛杨,李建林,郭水涛,徐博博..基于定向钻探技术的深部矿井突水点封堵方案优化[J].煤矿安全,2024,55(1):192-199,8.基金项目
国家自然科学基金资助项目(41972254) （41972254）
河南省高等学校重点科研资助项目(22A170009) （22A170009）
