| 卵石和沙层定向钻穿越工程施工技术 |
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| 引用本文： | 杨永兴,王玉晓,刘华.卵石和沙层定向钻穿越工程施工技术[J].中国化工装备,2011,13(3):26-29. |
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| 作者姓名： | 杨永兴 王玉晓 刘华 |
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| 作者单位： | 1. 中国石油华北油田第一采油厂,任丘,062550
2. 中国石油华北油田第三采油厂,河间,062450 |
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| 摘 要： | 卵石层是常规定向钻穿越施工的禁区,采用常规工艺扩孔时,因泥浆不能够支撑卵石而形成管线回拖所必需的环形空间,基本无法施工.本文以长庆-乌海-临河输气管道工程黄河定向钻穿越为例,介绍了采取安装套管的方法穿越卵石层,保证钻导向孔、扩孔和回拖的施工技术.
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| 关 键 词： | 长输管道 穿越 卵石 砂层 套管 |
Engineering Construction Technique with Orientation Drilling to Cross Pebbles and Sand Bed |
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| Yang Yong-xing,Wang Yu-xiao,Liu Hua.Engineering Construction Technique with Orientation Drilling to Cross Pebbles and Sand Bed[J].China Chemical Industry Equipment,2011,13(3):26-29. |
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| Authors: | Yang Yong-xing Wang Yu-xiao Liu Hua |
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| Affiliation: | Yang Yong-xing,Wang Yu-xiao (No.1 Oil Production Plant of CNPC Huabei Oilfield,Renqiu 062550) Liu Hua (No.3 Oil Production Plant of CNPC Huabei Oilfield,Hejian 062450) |
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| Abstract: | Pebble bed is a restricted area in the cross construction of general orientation drilling. When the normal expanding-hole craft was adopted, the pipeline can not be pull-back because the mud can not prop up the pebble bed. For the Yellow River section between Changqing to Wuhai to Linhe gas pipeline as an example, this paper introduces a method of crossing pebble bed which can ensure the success rates of guiding- hole, expanding-hole and pull-back construction by fixing a sleeve. |
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| Keywords: | long-distance pipeline cross pebble sand bed sleeve |
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