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  2. Well drilling - Wikipedia

    en.wikipedia.org/wiki/Well_drilling

    Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring. Drilling for the exploration of the nature of the material ...

  3. Drilling fluid - Wikipedia

    en.wikipedia.org/wiki/Drilling_fluid

    In geotechnical engineering, drilling fluid, also known as drilling mud, is used to aid the drilling of boreholes into the earth. Used while drilling oil and natural gas wells and on exploration drilling rigs, drilling fluids are also used for much simpler boreholes, such as water wells. The two main categories of drilling fluids are water ...

  4. Well - Wikipedia

    en.wikipedia.org/wiki/Well

    The difference between a well and a cistern is in the source of the water: a cistern collects rainwater where a well draws from groundwater. A well is an excavation or structure created in the earth by digging, driving, or drilling to access liquid resources, usually water. The oldest and most common kind of well is a water well, to access ...

  5. Drilling rig - Wikipedia

    en.wikipedia.org/wiki/Drilling_rig

    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. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually ...

  6. Deepwater drilling - Wikipedia

    en.wikipedia.org/wiki/Deepwater_drilling

    In the background are the Discoverer Enterprise, GSF Development Driller II, and Helix Producer I. Deepwater drilling, [1] or deep well drilling, [2] is the process of creating holes in the Earth's crust using a drilling rig for oil extraction under the deep sea. There are approximately 3400 deepwater wells in the Gulf of Mexico with depths ...

  7. Hydrogeology - Wikipedia

    en.wikipedia.org/wiki/Hydrogeology

    A water well is a mechanism for bringing groundwater to the surface by drilling or digging and bringing it up to the surface with a pump or by hand using buckets or similar devices. The first historical instance of water wells was in the 52nd century BC in modern-day Austria . [ 20 ]

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