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  2. Wellhead - Wikipedia

    en.wikipedia.org/wiki/Wellhead

    When the well has been drilled, it is completed to provide an interface with the reservoir rock and a tubular conduit for the well fluids. The surface pressure control is provided by a Christmas tree, which is installed on top of the wellhead, with isolation valves and choke equipment to control the flow of well fluids during production.

  3. Downhole safety valve - Wikipedia

    en.wikipedia.org/wiki/Downhole_safety_valve

    This means that they are installed as a component of the completion string and run in during completion. Retrieving the valve, should it malfunction, requires a workover. The full name for this most common type of downhole safety valve is a Tubing Retrievable Surface Controlled Sub-Surface Valve, shortened in completion diagrams to TRSCSSV.

  4. Compression fitting - Wikipedia

    en.wikipedia.org/wiki/Compression_fitting

    A compression fitting 15 mm isolating valve. A compression fitting is a fitting used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together. . In instances where two pipes made of dissimilar materials are to be joined (most commonly PVC and copper), the fittings will be made of one or more compatible materials appropriate for the connect

  5. Completion (oil and gas wells) - Wikipedia

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

    Within the tubing you can mount a combination of tools that will help to control fluid flow through the tubing. Gas lift well: gas is fed into valves installed in mandrels in the tubing strip. The hydrostatic head is lowered and the fluid is gas lifted to the surface. Single-well alternate completions: in this instance there is a well with two ...

  6. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [ 1 ] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave.

  7. FCC chair proposes cybersecurity rules in response to China's ...

    www.aol.com/news/fcc-chair-proposes-cyber...

    WASHINGTON (Reuters) -U.S. Federal Communications Commission Chairwoman Jessica Rosenworcel is proposing that communications service providers be required to submit an annual certification ...

  8. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    [19]: 61 To reduce flow resistance and solid deposits when the direction of flow is changed, they use a shallow curve with a large radius of curvature. [19]: 61 [20] In addition, a well-designed system will often use two 45° elbows instead of one 90° elbow (even a sweep 90° elbow) to reduce flow disruption as much as possible. [19]: 61

  9. These are the 20 best Cyber Monday deals under $100 at Walmart

    www.aol.com/lifestyle/these-are-the-best-cyber...

    Ninja products go on sale here and there, but this is the first time we can recall seeing such a good price on their 1200-watt blender. Smoothies won't know what hit them. $98 at Walmart

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