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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. Rotary steerable system - Wikipedia

    en.wikipedia.org/wiki/Rotary_steerable_system

    They are generally programmed by the measurement while drilling (MWD) engineer or directional driller who transmits commands using surface equipment (typically using either pressure fluctuations in the mud column or variations in the drill string rotation) which the tool responds to, and gradually steers into the desired direction.

  6. Underground pneumatic boring - Wikipedia

    en.wikipedia.org/wiki/Underground_pneumatic_boring

    If the soil is rocky the tool may be deflected or fail to pound forward due to its inability to break the rock. These drawbacks can be overcome by directional boring or straight-line horizontal underground boring machines that use either wet (slick boring, slurry boring) or dry (auger boring, jack and bore) methods.

  7. Trump won't kill green energy [Video] - AOL

    www.aol.com/finance/trump-wont-kill-green-energy...

    Trump’s impact on actual energy markets, however, is likely to be incremental and perhaps ephemeral. Start with drilling. Energy firms will certainly welcome Trump’s lighter regulatory touch ...

  8. Logging while drilling - Wikipedia

    en.wikipedia.org/wiki/Logging_while_drilling

    Logging while drilling (LWD) is a technique of conveying well logging tools into the well borehole downhole as part of the bottom hole assembly (BHA).. Although the terms Measurement while drilling (MWD) and LWD are related, within the context of this section, the term MWD refers to directional-drilling measurements, e.g., for decision support for the smooth operation of the drilling, while ...

  9. Category:Drilling technology - Wikipedia

    en.wikipedia.org/wiki/Category:Drilling_technology

    Deep hole drilling; Degasser; Density logging; Desander; Deviation survey; Differential sticking; 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 ...