大直径工程井钻孔防斜关键技术研究
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摘要
大直径工程井钻孔中对垂直度要求高,施工过程中的防斜保直难度大。通过分析此类大直径井的特征及施工过程中造成井斜的原因,研究出一套适合大直径工程井的施工方法和钻具组合。通过分析造成大直径工程井井斜大的原因,从成孔方法、防斜钻具、纠斜钟摆钻具的选择等方面对大直径工程井钻孔防斜的关键技术进行研究,并将该项研究应用到具体的工程实例中。研究对提高大直径工程井钻井防斜具有一定的指导意义。
Large diameter engineering wells have high requirements for verticality,and it is difficult to prevent the inclination during construction.By analyzing the characteristics of such large diameter wells and the causes of well inclination during construction,a targeted study is made.The construction method and drilling tool combination suitable for large diameter engineering wells have certain guiding significance for improving the anti-slope of large diameter engineering wells.In this paper,the main reasons for the large diameter engineering wells are analyzed,and the key techniques for drilling and anti-slanting of large diameter engineering wells are studied from the aspects of hole forming method,anti-slanting drilling tools and selection of slanting pendulum drilling tools.The study was applied to specific engineering examples.
Large diameter engineering wells have high requirements for verticality,and it is difficult to prevent the inclination during construction.By analyzing the characteristics of such large diameter wells and the causes of well inclination during construction,a targeted study is made.The construction method and drilling tool combination suitable for large diameter engineering wells have certain guiding significance for improving the anti-slope of large diameter engineering wells.In this paper,the main reasons for the large diameter engineering wells are analyzed,and the key techniques for drilling and anti-slanting of large diameter engineering wells are studied from the aspects of hole forming method,anti-slanting drilling tools and selection of slanting pendulum drilling tools.The study was applied to specific engineering examples.
引文
[1]熊亮,袁志坚,彭桂湘,等.219.1/168.3 mm气举反循环双壁钻具在大直径工程井中的成功应用[C]//煤层气学术研讨会,2013.
[2]袁志坚.大直径气举反循环成套钻具的研制[J].探矿工程(岩土钻掘工程),2014,41(12):44-48.Yuan Zhijian.Development of complete set of large diameter air-lift reverse circulation drilling tool[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,41(12):44-48.
[3]白领国,袁志坚.大直径工程井成井下管方法探讨[J].探矿工程(岩土钻掘工程),2014,41(2):33-36.Bai Lingguo,Yuan Zhijian.Discussion on casing running for large diameter engineering well[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,41(2):33-36.
[4]周兢.煤矿大口径工程井钻井技术研究[J].中国煤炭地质,2016,28(1):58-62.Zhou Jing.Study on coalmine large diameter engineering well drilling[J].Coal Geology of China,2016,28(1):58-62.
[5]陈明旺,陈茂林.淮南潘集煤矿大口径抽排瓦斯钻孔施工工艺[J].徐煤科技,1999(2):18-19.Chen Mingwang,Chen Maolin.Construction technology of large diameter drainage gas drilling in Panji Coal Mine of Huainan[J].Coal Science&Technology Magazine,1999(2):18-19.
[6]杨宗仁,张宁,贺连杰,等.超大直径工程井钻井垂直度控制工艺技术[J].探矿工程(岩土钻掘工程),2010,37(8):44-46.Yang Zongren,Zhang Ning,He Lianjie,et al.Drilling verticality control technology of super-large diameter project well[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2010,37(8):44-46.
[7]莫海涛.煤矿区地面大口径定向井成井工艺研究[D].北京:煤炭科学研究总院,2014.
[2]袁志坚.大直径气举反循环成套钻具的研制[J].探矿工程(岩土钻掘工程),2014,41(12):44-48.Yuan Zhijian.Development of complete set of large diameter air-lift reverse circulation drilling tool[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,41(12):44-48.
[3]白领国,袁志坚.大直径工程井成井下管方法探讨[J].探矿工程(岩土钻掘工程),2014,41(2):33-36.Bai Lingguo,Yuan Zhijian.Discussion on casing running for large diameter engineering well[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,41(2):33-36.
[4]周兢.煤矿大口径工程井钻井技术研究[J].中国煤炭地质,2016,28(1):58-62.Zhou Jing.Study on coalmine large diameter engineering well drilling[J].Coal Geology of China,2016,28(1):58-62.
[5]陈明旺,陈茂林.淮南潘集煤矿大口径抽排瓦斯钻孔施工工艺[J].徐煤科技,1999(2):18-19.Chen Mingwang,Chen Maolin.Construction technology of large diameter drainage gas drilling in Panji Coal Mine of Huainan[J].Coal Science&Technology Magazine,1999(2):18-19.
[6]杨宗仁,张宁,贺连杰,等.超大直径工程井钻井垂直度控制工艺技术[J].探矿工程(岩土钻掘工程),2010,37(8):44-46.Yang Zongren,Zhang Ning,He Lianjie,et al.Drilling verticality control technology of super-large diameter project well[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2010,37(8):44-46.
[7]莫海涛.煤矿区地面大口径定向井成井工艺研究[D].北京:煤炭科学研究总院,2014.