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  2. Directional boring - Wikipedia

    en.wikipedia.org/wiki/Directional_boring

    Directional boring, also referred to as horizontal directional drilling (HDD), is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surface-launched drilling rig. Directional boring offers significant ...

  3. Directional drilling - Wikipedia

    en.wikipedia.org/wiki/Directional_drilling

    Directional drilling (or slant drilling) is the practice of drilling non-vertical bores. It can be broken down into four main groups: oilfield directional drilling, utility installation directional drilling, directional boring (horizontal directional drilling - HDD), and surface in seam (SIS), which horizontally intersects a vertical bore ...

  4. Trenchless technology - Wikipedia

    en.wikipedia.org/wiki/Trenchless_technology

    Trenchless construction includes such construction methods as tunneling, microtunneling (MTM), horizontal directional drilling (HDD) also known as directional boring, pipe ramming (PR), pipe jacking (PJ), moling, horizontal auger boring (HAB) and other methods for the installation of pipelines and cables below the ground with minimal excavation.

  5. Underground pneumatic boring - Wikipedia

    en.wikipedia.org/wiki/Underground_pneumatic_boring

    Underground pneumatic drills can be used in the installation of public utilities like power lines, gas lines, phone cables, and cable television. It can also be used to install residential lawn irrigation systems. Boring is especially useful when it is difficult or cost-prohibitive to plow or trench.

  6. StraightLine HDD - Wikipedia

    en.wikipedia.org/wiki/StraightLine_HDD

    StraightLine HDD, formerly StraightLine Manufacturing, Inc., is an American corporation which designs and builds tooling and equipment for the Directional drilling industry. The company's products include directional drills, mud mixing systems, air hammers and a full line of down hole tools, wear parts and accessories for all brands of ...

  7. Category:Drilling technology - Wikipedia

    en.wikipedia.org/wiki/Category:Drilling_technology

    Directional boring; Directional drilling; Directional well; Down-the-hole drill; Drawworks; Drill bit (well) Drill line; Drill stem test; Drill string compensator; Drilling fluid; Drilling formula sheets; Oil well control; Drilling riser; Drilling stabilizer

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  9. Rotary steerable system - Wikipedia

    en.wikipedia.org/wiki/Rotary_steerable_system

    The first known patent application is from Christopher G. Cross in 1873 for "Drills for Boring Artesian Wells", [1] followed in 1884 by the brothers Morris and Clarence Baker for a "Machine for Operating Drills" [2] The methods used to direct the well path fall into two broad categories, these being “push-the-bit” or “point-the-bit ...

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