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  2. 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 ...

  3. Tunnel boring machine - Wikipedia

    en.wikipedia.org/wiki/Tunnel_boring_machine

    A tunnel boring machine (TBM), also known as a "mole" or a "worm", is a machine used to excavate tunnels. Tunnels are excavated through hard rock, wet or dry soil, or sand, each of which requires specialized technology. Tunnel boring machines are an alternative to drilling and blasting (D&B) methods and "hand mining".

  4. Drilling - Wikipedia

    en.wikipedia.org/wiki/Drilling

    Circle interpolating, also known as orbital drilling, is a process for creating holes using machine cutters. Orbital drilling is based on rotating a cutting tool around its own axis and simultaneously about a centre axis which is off-set from the axis of the cutting tool. The cutting tool can then be moved simultaneously in an axial direction ...

  5. List of companies of India - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_India

    Oil & gas offshore drilling & other services Chennai: 1986 Oil, petrochemical P A ABG Shipyard: Industrials Shipbuilding Ahmedabad: 1985 Ship building P A ABP Group: Consumer services Broadcasting & entertainment Kolkata: 1922 Media, news P A ACC: Industrials Cement Mumbai: 1936 Cement P A ACG Group: Industrials Machinery: specialty Mumbai: 1961

  6. Drilling rig - Wikipedia

    en.wikipedia.org/wiki/Drilling_rig

    Drilling the Bakken Formation in the Williston Basin Large hole drilling rig for blast-hole drilling. A drilling rig is an integrated system that drills wells, such as oil or water wells, or holes for piling and other construction purposes, into the earth's subsurface.

  7. Flipkart - Wikipedia

    en.wikipedia.org/wiki/Flipkart

    Flipkart slowly grew in prominence and was receiving 100 orders per day by 2008. [16] Flipkart acquired WeRead in 2010 from Lulu.com that helped it build its foundational strength which was the digital retail of books. This space was otherwise only shared by very limited number of players at that time in the market, such as Landmark and ...

  8. Magnetic drilling machine - Wikipedia

    en.wikipedia.org/wiki/Magnetic_drilling_machine

    A portable magnetic drilling machine is faster and more portable alternative to hole making machines such as the drill press, and is more accurate than a hand drill. A portable magnetic drilling machine is used on steel or other magnetic materials. It gives an accuracy of 0.01 mm to 0.05mm in steel or other magnetic material.

  9. Drifter drill - Wikipedia

    en.wikipedia.org/wiki/Drifter_drill

    Rock drill mounted on a tripod. The large objects on the legs are weights to anchor it down into position. In reciprocating power drills, the drilling cylinder is mounted on a feed-screw, such that as the hole is drilled and the drilling point recedes from the rock face, the drill-bit continues to move into it, while the anchor point (on the tripod or column) remains in place. [11]

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