康家湾矿区充填孔大直径钻孔施工防斜措施
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摘要
康家湾矿区位于湖南省常宁市水口山镇,地处世界铅都,因矿方已有的充填孔不能满足现有水泥浆充填需求,目前急需重新施工一个充填孔,充填是提高矿山资源回采量,防止地面下沉塌陷以及周围地下水资源流失的新措施。而充填孔大多为垂直定向钻孔,偏斜度要求极小,需要面对钻孔因施工距离长、地层复杂造成钻孔易弯曲的技术难点。湖南省有色地质勘查局二一七队根据以往多年的钻孔施工经验,在该矿区钻孔防斜方面取得了一些技术突破,自创了钻孔精准防斜施工工艺方法,形成了一套实用高效的钻孔弯曲度质量保障体系。
Kangjiawan Mining Area is located in Shuikoushan Town, Changning City, Hunan Province. It is located in the lead capital of the world. Because the existing filling holes can not meet the needs of the existing cement slurry filling,there is an urgent need to re-construct a filling hole. Filling is a new measure to improve the recovery of mine resources,prevent ground subsidence and the loss of surrounding groundwater resources. The filling holes are mostly vertical directional boreholes, and the deviation requirement is very small. It is necessary to face the technical difficulties that the boreholes are easy to bend due to the long construction distance and complex strata. According to the experience of drilling construction in the past years, the 217 team of Hunan Nonferrous Geological Exploration Bureau has made some technical breakthroughs in drilling anti-inclination in this mining area. It has created a precise drilling anti-inclination construction technology and formed a set of practical and efficient quality assurance system for drilling bending.
Kangjiawan Mining Area is located in Shuikoushan Town, Changning City, Hunan Province. It is located in the lead capital of the world. Because the existing filling holes can not meet the needs of the existing cement slurry filling,there is an urgent need to re-construct a filling hole. Filling is a new measure to improve the recovery of mine resources,prevent ground subsidence and the loss of surrounding groundwater resources. The filling holes are mostly vertical directional boreholes, and the deviation requirement is very small. It is necessary to face the technical difficulties that the boreholes are easy to bend due to the long construction distance and complex strata. According to the experience of drilling construction in the past years, the 217 team of Hunan Nonferrous Geological Exploration Bureau has made some technical breakthroughs in drilling anti-inclination in this mining area. It has created a precise drilling anti-inclination construction technology and formed a set of practical and efficient quality assurance system for drilling bending.
引文
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[2]刘广志.金刚石深孔钻探孔斜问题与纠偏措施[J].地质与勘探,1989,25(1):55-57.
[3]吕鹏翔.钻井过程中防斜打直技术的探讨[J].中国石油与化工标准与质量,2014(2).
[4]方俊,陆军,张幼振,等.定向长钻孔精确探放矿井老空水技术及其应用[J].煤田地质与勘探,2015,43(2):101-105.
[5]张杰,姚宁平,李乔乔,煤矿井下定向钻井技术在矿井地质勘探中的应用[J].煤矿安全,2013,44(10):131-134.
[6]吴翔,杨凯华,蒋国盛.定向钻井原理与应用[M].湖北武汉:中国地质大学出版社,2009.
[7]胡郁乐,张绍和.钻探事故预防与处理知识问答.湖南长沙:中南大学出版社,2010.
[8]石浩,张杰。煤矿井下精准定向探放水技术[J].煤矿安全,2015(2):64-68.