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  2. Well stimulation - Wikipedia

    en.wikipedia.org/wiki/Well_stimulation

    Well stimulation is a broad term used to describe the various techniques and well interventions that can be used to restore or enhance the production of hydrocarbons from an oil well. Hydraulic fracturing (fracking) and acidizing are two of the most common methods for well stimulation.

  3. Production tubing - Wikipedia

    en.wikipedia.org/wiki/Production_tubing

    Production casing is the final casing string set in a well and usually reaches from the surface to Target Depth (TD). The type of casing used depends upon the different conditions in the well. Commonly, production casing sizes range from 4 + 1 ⁄ 2 in (110 mm) to as large as 9 + 5 ⁄ 8 in (240 mm). It is the last string cemented in a well ...

  4. Completion (oil and gas wells) - Wikipedia

    en.wikipedia.org/wiki/Completion_(oil_and_gas_wells)

    This refers to the portion of the well across the production or injection zone. The well designer has many tools and options available to design the lower completion (downhole completion) according to the conditions of the reservoir. Typically, the lower completion is set across the productive zone using a liner hanger system, which anchors the ...

  5. Subsea production system - Wikipedia

    en.wikipedia.org/wiki/Subsea_production_system

    The oil platform well is drilled by a movable rig and the extracted oil or natural gas is transported by submarine pipeline under the sea and then to rise to a processing facility. It is classified into [1] Subsea production control system; Subsea structures and manifold system; Subsea intervention system; Subsea umbilical system; Subsea ...

  6. Workover - Wikipedia

    en.wikipedia.org/wiki/Workover

    The workover begins by killing the well then removing the wellhead and possibly the flow line, then installing a B.O.P. commonly known as a blowout preventer, then lifting the tubing hanger from the casing head, thus beginning to pull the completion out of the well. The string will almost always be fixed in place by at least one production ...

  7. Well intervention - Wikipedia

    en.wikipedia.org/wiki/Well_intervention

    Well intervention vessel Skandi Constructor. A well intervention, or well work, is any operation carried out on an oil or gas well during, or at the end of, its productive life that alters the state of the well or well geometry, provides well diagnostics, or manages the production of the well.

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    mail.aol.com/?rp=webmail-std/en-us/basic

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  9. Christmas tree (oil well) - Wikipedia

    en.wikipedia.org/wiki/Christmas_tree_(oil_well)

    The right hand valve is often called the flow wing valve or the production wing valve, because it is in the flowpath the hydrocarbons take to production facilities (or the path water or gas will take from production to the well in the case of injection wells). The left hand valve is often called the kill wing valve (KWV).