This "directional drilling" has several advantages
这种“定向钻取”的优势如下
It has a practical significance on construction of directional drilling.
对正确指导定向井施工具有较大的实际意义。
The design of centralizer assembly is the basic and key job for directional drilling.
扶正器组合设计是钻定向井基本而关键的工作。
All of the directional drilling applications described here are carried out by REI drilling, Inc.
这里介绍的均为REI钻进公司在定向钻进方面的应用。
The application of horizontal directional drilling technology in municipal pipeline is introduced.
介绍了水平定向钻进技术在市政管线上的应用。
Horizontal Directional Drilling technology is widely used in urban underground pipe laying engineering.
在非开挖工程中，水平定向钻进技术广泛应用于城市地下管线铺设工程。
It is a combine of directional drilling technique on land and manual mud-penetrator technique undersea.
它是将陆地定向钻技术与水下人工攻泥器技术相结合，构成一种新的可控穿千斤攻泥器。
This paper discussed the horizontal directional drilling trace optimization design in no-dig engineering.
水平定向钻进轨迹最优化设计进行了深入研究。
Electronic directional drilling system consists of downhole tool and sur - face data processing equipment.
电子式定向仪由井下仪器及地面处理设备组成。
The key problem of directional drilling is the accuracy and reliability of orientation of deflecting tools.
定向钻进的成败关键在干对造斜工具定向的准确性和可靠性。
The flexible drill string is one of the key tools to materialize the high accuracy directional drilling technique.
挠性钻杆是实现高精度定向钻孔技术的关键器具之一。
In the process of drilling, it is important to predict the drilling formation depth, especially directional drilling.
钻井中，需要对将要钻达的下部地层深度进行预测，特别是在定向井的钻探过程中显得尤为重要。
Directional drilling technique has already become a key link in long broach construction for gas drainage of the mine.
定向钻进技术已经成为煤矿井下抽放瓦斯长钻孔施工成套技术的关键环节。
It also introduces the main characteristics of the directional drilling graphics display system and its main functions.
同时介绍了定向钻图形显示系统的特色及主要功能。
Method and its application of uneven ground modifying in directional drilling locus design are narrated in this article.
叙述了在定向钻进的钻孔轨迹设计时，地面不平整度修正的方法与应用。
For mining CBM effectively, directional CBM production Wells were drilled through the application of directional drilling.
为有效开采煤层气，应用定向钻进技术施工煤层气定向井。
An apparatus and method for a modified horizontal directional drilling assembly for drilling pipe into a drilling surface.
用于将钻杆钻入钻探面的改良型水平定向钻探组件的器械和方法。
The technique of underground pipeline laying with guided/directional drilling is technologically intensive and eco-friendly.
近十年来，非开挖定/导向钻进技术用于敷设城市地下管线在我国得到了极大的推广应用。
The wire-line directional drilling and coring technology can take cores and drill directionally without using down-hole motors.
绳索取心技术因其钻进效率高而广泛应用，但其无法实施定向作业。
The main problems on horizontal directional drilling method of non-excavation in the practical applications were reviewed in the paper.
论述了非开挖水平导向钻进法在实际应用中的主要问题。
The proposed approach was applied in the product development of horizontal directional drilling machine and its feasibility was verified.
最后给出了水平定向钻机完整产品总体设计方案的配置实例，并验证了所提方法的可行性。
The technique standard of the multiple directional drilling technology in East Sichuan was summed up and verified through field examples.
总结了川东分枝定向井工艺技术规范，并通过现场实例予以充分论证。
Technique of multiple directional drilling holes can effectively solve the problem among well location, surface installations and physiognomy.
丛式定向井技术能够有效地解决地下井位与地面建筑物、地形地貌之间的矛盾。
The basic work principle and equipment composition of non-excavation technique of directional drilling machine have been introduced in this paper.
介绍了采用定向钻非开挖技术的基本工作原理与设备组成。
With targeted bit speed and specialized MWD components, the SRT provides efficient directional drilling at a lower cost than rotary-steerable systems.
高效钻速与专业化的MWD组件，使得SRT较于常规型旋转导向系统能够以更低成本完成更加高效的定向钻进。
Magnesium ribbon anodes are installed in radial pattern beneath the tank bottom by directional drilling and then connected electrically with the bottom.
它运用定向顶管施工方法把镁带牺牲阳极呈辐射状水平地直接埋设在罐底下，然后与罐底板连通。
This paper briefs the long borehole directional drilling technology, selection of typical equipment, process, measuring system and application in coalmines.
本文介绍深孔定向钻进技术的原理、典型的设备选择、工艺、测量系统以及该技术在煤矿工程中的应用。
The practice proves that comparing with conventional excavation technique, non -excavating horizontal directional drilling technique is obviously advantageous.
实践证明，非开挖水平定向钻进技术相对传统的开挖技术在特定条件下具有明显的优越性。
The practice proves that comparing with conventional excavation technique, non -excavating horizontal directional drilling technique is obviously advantageous.
实践证明，非开挖水平定向钻进技术相对传统的开挖技术在特定条件下具有明显的优越性。
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