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  2. Casing (borehole) - Wikipedia

    en.wikipedia.org/wiki/Casing_(borehole)

    Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream. The lower portion (and sometimes the entirety) is typically held in place with cement. [1]

  3. Conductor pipe - Wikipedia

    en.wikipedia.org/wiki/Conductor_pipe

    A conductor Pipe is a large diameter pipe that is set into the ground to provide the initial stable structural foundation for a borehole or oil well. [1] The Conductor pipe is the first string of casing and is the largest diameter casing to be installed in a well. It can also be referred to as a drive pipe because it is often driven into the ...

  4. Steel casing pipe - Wikipedia

    en.wikipedia.org/wiki/Steel_casing_pipe

    Steel casing pipe, also known as encasement pipe, is most commonly used in underground construction to protect utility lines of various types from getting damaged. Such damage might occur due to the elements of nature or human activity. Steel casing pipe is used in different types of horizontal underground boring, where the pipe is jacked into ...

  5. Tube well - Wikipedia

    en.wikipedia.org/wiki/Tube_well

    Tube well. A tube well is a type of water well in which a long, 100–200 millimetres (3.9–7.9 in)-wide, stainless steel tube or pipe is bored underground. The lower end is fitted with a strainer, and a pump lifts water for irrigation. The required depth of the well depends on the depth of the water table.

  6. Multilevel groundwater monitoring systems - Wikipedia

    en.wikipedia.org/wiki/Multilevel_groundwater...

    The casing comes in two different sizes, the MP38 system (38 mm, 1.5-inch) and MP55 system (55 mm, 2.25-inch). One single string of water-tight Westbay casing sections is installed in the borehole. Each desired monitoring zone has valved couplings and ports to access groundwater outside the casing and instruments inside the casing.

  7. Casing string - Wikipedia

    en.wikipedia.org/wiki/Casing_string

    Casing string. In drilling technology, casing string is a long section of connected oilfield pipe that is lowered into a wellbore and cemented. The purpose of the casing pipe is as follows: prevent the collapse of the borehole. prevent formation fluids from entering the borehole in an uncontrolled way (blow out)

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