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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Horizontal drilling technology achieved commercial viability during the late 1980's.
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Horizontal drilling technology was not readily available when Lisbon field and other Leadville fields were discovered and developed.
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Horizontal drilling technology has developed rapidly since the late 1980s.
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In many basins and reservoirs, properly applied horizontal drilling technology has demonstrated an incremental advantage over vertical wells.
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Lack of horizontal drilling technology was the key handicap for development of UCG in the past.
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| | The paper introduces the key points of radial horizontal drilling,full size surface simulation test and field tests in Jin 450419 Well,on the basis of analyses the rock breaking capacity of rotary fluidics,the capacity of steering device,bit trajectory and the antideformaton capacity of flexible drilling pipe.The successul application in Jin 450419 Well shows that the technology is both feasible and ecnomical,and can be widely applied. | | 介绍了径向水平钻进技术原理及技术关键。分析了地面全尺寸模拟水平钻进试验及锦45-04-19井水平钻进试验情况。探讨了旋转射流的破岩能力、转向器的送进能力、钻头轨迹及柔性钻杆的抗变形能力对径向水平钻进的影响。在锦45-04-19井的试验成功表明,该项技术具有可行性和经济性,应用前景广阔,对开采我国东部油区剩余油、提高采收率和经济效益有十分重要的现实意义。 | | 文摘来源 | | Communication pipe playing construction case with trenchless horizontal directional drilling technology in KaifengLuoyang express highway was studied. Field drilling experimental data were analyzed. That the borehole track of horizontal directional drilling is arc is concluded. Calculating formula of borehole arc curvature radius and inlet elevation angle assuring borehole outlet exactly are induced. Main technological points of horizontal directional drilling are summarized in the paper. | | 结合水平横穿开封—洛阳高速公路非开挖水平钻进铺设通讯管道工程实例 ,通过对实钻试验数据进行分析 ,得出了水平定向钻进中钻孔轨迹为弧线的规律 ,并推导出钻孔弧段曲率半径以及能保证准确钻孔出口位置的入口仰角的计算公式。总结了水平钻进的技术要点 | | 文摘来源 | | This paper presents four kinds of direction controllable trenchless techniques for pipeline installation. The principle of these techniques, including controllable impact moling, horizontal drilling with controllable pneumatic hammer, soil displacement pilot hole drilling technique and soil displacement micro-tunneling, is that the soils are displaced to the hole wall rather than removed to the ground surface during construction. In addition, the suitable conditions for each method are introduced. | | 介绍了4种方向可控的土层挤密式非开挖管线铺设方法:可控冲击矛挤密工法、可控冲击矛水平钻进技术、先导式土层挤密施工技术和土层挤密式微型隧道施工技术。同时,还对各种施工方法的使用条件和应用情况作了简要论述。 | | 文摘来源 | |   |
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