This "directional drilling" has several advantages
这种“定向钻取”的优势如下
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 article introduces the principles and peculiarities of some guiding techniques in horizon directional drilling project with comparison of their applicability.
文章介绍了水平定向钻施工中各种导向技术的基本原理和各自的特点，并对其适用性进行了比较。
DZ-1 small -sized directional drilling newly developed by China Petroleum pipeline Scientific Research Institute provides an advanced method for laying of various pipelines.
由中国石油天然气管道科学研究院最新研制的DZ - 1小型定向钻为各类地下管道的敷设提供了一种先进的方法。
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。
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 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。
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。
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 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。
Simulation method of directional drilling course was discussed under limited survey point data, and the reliability of simulation method was analyzed with cases.
在测点数据有限的情况下，探讨定向钻孔轨迹的模拟方法，并通过实例分析模拟方法的可靠性。
Two major types of communicated well pairs are introduced, namely hydraulic fracturing communicated well groups and directional drilling communicated well pairs.
介绍了连通井组的两种主要类型：水力压裂连通井组与定向钻井连通井组。
This paper gives a brief introduction to the cardinal principle of horizontal directional drilling technique and its application in the construction of sewer net.
本文介绍了水平定向钻进技术的基本原理及在污水管网建设中的应用。
During production of complicated and craven faulted oilfields, the directional drilling technology with bibuild and bihold profile is used to prevent the hits of cluster wells.
在复杂小断块油田的整体开发中，运用双增双稳剖面定向井有利于丛式井组的防碰。
The broad application of directional drilling has brought some difficulty to the net pay thickness determination for single well during the reserve calculation with volumetric method.
定向井技术的广泛应用，给容积法储量计算时单井有效厚度的确定带来一定的困难。
Pipe sticking phenomenon appears sometimes during pull-back stage of pipeline crossing with horizontally directional drilling, which results in crossing failure and great economic loss.
在水平定向钻穿越管道回拖环节中，容易出现卡管现象，导致穿越失败，造成巨大的经济损失。
Oftentimes the assembly includes a mud motor, directional drilling and measuring equipment, measurements-while-drilling tools, logging-while-drilling tools and other specialized devices.
井底钻具组合经常包括一个泥浆马达、定向钻进及测量设备、随钻测量工具、随钻测井工具和其它特殊的装置。
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