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  2. Choke valve - Wikipedia

    en.wikipedia.org/wiki/Choke_valve

    Most choke valves in engines are butterfly valves mounted upstream of the carburetor jet to produce a higher partial vacuum, which increases the fuel draw. [ 1 ] In heavy industrial or fluid engineering contexts, including oil and gas production, a choke valve or choke is a particular design of valve with a solid cylinder placed inside another ...

  3. Choke manifold - Wikipedia

    en.wikipedia.org/wiki/Choke_manifold

    In oil and gas production a choke manifold is used to lower the pressure from the well head. It consist of a set of high pressure valves and at least two chokes. These chokes can be fixed or adjustable or a mix of both. The redundancy is needed so that if one choke has to be taken out of service, the flow can be directed through another one.

  4. Blowout preventer - Wikipedia

    en.wikipedia.org/wiki/Blowout_preventer

    A typical subsea deepwater blowout preventer system includes components such as electrical and hydraulic lines, control pods, hydraulic accumulators, test valve, kill and choke lines and valves, riser joint, hydraulic connectors, and a support frame. Two categories of blowout preventer are most prevalent: ram and annular. BOP stacks frequently ...

  5. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Choke valve, a solid cylinder placed around or inside a second cylinder with multiple holes or slots, inside a housing. Shifting the solid cylinder exposes more or fewer holes. Used in oil and gas wellheads, where the pressure drop is high. (Not to be confused with engine choke valve, below.)

  6. Christmas tree (oil well) - Wikipedia

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

    Oil well Christmas tree. In petroleum and natural gas extraction, a Christmas tree, or tree, is an assembly of valves, casing spools, and fittings used to regulate the flow of pipes in an oil well, gas well, water injection well, water disposal well, gas injection well, condensate well, and other types of well.

  7. Gas–oil separation plant - Wikipedia

    en.wikipedia.org/wiki/Gas–oil_separation_plant

    The high pressure is reduced at the choke valve to typically 7 to 30 bar at the separator, although the first stage separator could operate at higher pressure c. 250 bar. [2] Modern oil recovery practice may place a hydro-cyclone to replace the temporary GOSP, allowing the water to be removed immediately and re-injected into the reservoir.

  8. Completion (oil and gas wells) - Wikipedia

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

    The high pressure is needed to overcome the production pressure in the tubing upstream of the choke on the tree. The valve will operate if the umbilical HP line is cut or the wellhead/tree is destroyed. This valve allows fluids to pass up or be pumped down the production tubing.

  9. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    CHK – choke (a restriction in a flowline or a system, usually referring to a production choke during a test or the choke in the well control system) CHKSR – checkshot survey report; CHKSS – checkshot survey log; CHOPS – cold heavy oil production with sand; CHP – casing hanger pressure (pressure in an annulus as measured at the casing ...

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