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  2. Down-the-hole drill - Wikipedia

    en.wikipedia.org/wiki/Down-The-Hole_Drill

    DTH drill tool operated with drilling mud (Drillstar MUDHammer) A down-the-hole drill, usually called DTH by most professionals, is basically a jackhammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small cuttings and dust that are evacuated by a fluid (air, water or drilling mud). The DTH hammer is one ...

  3. List of components of oil drilling rigs - Wikipedia

    en.wikipedia.org/wiki/List_of_components_of_oil...

    Drill bit (#26) is a device attached to the end of the drill string that breaks apart the rock being drilled. It contains jets through which the drilling fluid exits. Drill floor (#21) is the area on the rig where the tools are located to make the connections of the drill pipe, bottom hole assembly, tools and bit. It is considered the main area ...

  4. Drilling - Wikipedia

    en.wikipedia.org/wiki/Drilling

    Titanium drilling. Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute.

  5. Drilling rig - Wikipedia

    en.wikipedia.org/wiki/Drilling_rig

    Cable tool drilling was developed in ancient China and was used for drilling brine wells. The salt domes also held natural gas, which some wells produced and which was used for evaporation of the brine. Drake learned of cable tool drilling from Chinese laborers in the U.S. [4] The first primary product was kerosene for lamps and heaters.

  6. Ditch Witch - Wikipedia

    en.wikipedia.org/wiki/Ditch_Witch

    The Ditch Witch organization specializes in the design and manufacture of underground construction equipment. The company is a source for trenchers, vibratory plows, horizontal directional drilling systems, drill pipe, downhole tools, vacuum excavation systems, fluid management systems, and mini skid steers. Because of its extensive experience ...

  7. Rotary steerable system - Wikipedia

    en.wikipedia.org/wiki/Rotary_steerable_system

    Push-the-bit tools use pads on the outside of the tool which press against the well bore thereby causing the bit to press on the opposite side causing a direction change. Point-the-bit technologies cause the direction of the bit to change relative to the rest of the tool by bending the main shaft running through it.