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  2. Wellhead - Wikipedia

    en.wikipedia.org/wiki/Wellhead

    In exploration wells that are later abandoned, the wellhead may be recovered for refurbishment and re-use. Offshore, where a wellhead is located on the production platform it is called a surface wellhead , and if located beneath the water then it is referred to as a subsea wellhead or mudline wellhead.

  3. Blowout (well drilling) - Wikipedia

    en.wikipedia.org/wiki/Blowout_(well_drilling)

    Modern wells have blowout preventers intended to prevent such an occurrence. An accidental spark during a blowout can lead to a catastrophic oil or gas fire. Prior to the advent of pressure control equipment in the 1920s, the uncontrolled release of oil and gas from a well while drilling was common and was known as an oil gusher, gusher or wild ...

  4. Wellhead protection program - Wikipedia

    en.wikipedia.org/wiki/Wellhead_protection_program

    A community's Wellhead Protection Program must add in any new water well that serves a public water supply system. A demonstration program which protects designated aquifers is required. Additionally, EPA must impose monitoring requirements on water systems for contaminants which have not yet been regulated [ 7 ]

  5. Artesian well - Wikipedia

    en.wikipedia.org/wiki/Artesian_well

    An artesian well is a well that brings groundwater to the surface without pumping because it is under pressure within a body of rock or sediment known as an aquifer. [1] When trapped water in an aquifer is surrounded by layers of impermeable rock or clay, which apply positive pressure to the water, it is known as an artesian aquifer. [1]

  6. Ranney collector - Wikipedia

    en.wikipedia.org/wiki/Ranney_collector

    A Ranney Collector is a type of radial well used to extract water from an aquifer with direct connection to a surface water source like a river or lake. The amount of water available from the collector is typically related more to the surface water source than to the piezometric surface of the aquifer. [1]

  7. 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.

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