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  2. Production tubing - Wikipedia

    en.wikipedia.org/wiki/Production_tubing

    Tubing is a smaller diameter pipe that is run inside of the production casing. A packer is usually set at the lower end of the casing to prevent formation fluid from entering the annulus between the tubing and the casing. A packer is an elastomer cylinder that forms a pressure seal between the tubing and the casing.

  3. Coiled tubing - Wikipedia

    en.wikipedia.org/wiki/Coiled_tubing

    In the oil and gas industry, coiled tubing refers to a long metal pipe, normally 1 to 3.25 in (25 to 83 mm) in diameter which is supplied spooled on a large reel. It is used for interventions in oil and gas wells and sometimes as production tubing in depleted gas wells.

  4. Nominal Pipe Size - Wikipedia

    en.wikipedia.org/wiki/Nominal_Pipe_Size

    Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

  5. Tube (fluid conveyance) - Wikipedia

    en.wikipedia.org/wiki/Tube_(fluid_conveyance)

    A tube and pipe may be specified by standard pipe size designations, e.g., nominal pipe size, or by nominal outside or inside diameter and/or wall thickness. The actual dimensions of pipe are usually not the nominal dimensions: A 1-inch pipe will not actually measure 1 inch in either outside or inside diameter, whereas many types of tubing are ...

  6. SAE 304 stainless steel - Wikipedia

    en.wikipedia.org/wiki/SAE_304_stainless_steel

    A2 stainless steel outside the US, in accordance with ISO 3506 for fasteners. [4] 18/8 and 18/10 stainless steel (also written 18-8 and 18-10) in the commercial tableware and fastener industries. SUS304 the Japanese JIS G4303 equivalent grade. 1.4301, the EN 10088 equivalent. [5] 06Cr19Ni10 and ISC S30408, the equivalent in Chinese GB/T 20878 ...

  7. Casing hanger - Wikipedia

    en.wikipedia.org/wiki/Casing_hanger

    If the well is a very productive oil well, a 7 in (180 mm) production tubing might be installed in a larger diameter casing. Gas wells may only require a small 2 + 7 ⁄ 8 in (73 mm) tubing set in 4 + 3 ⁄ 4 in (120 mm) casing, so the hole might be relatively small. With rank wildcats in geological basins that have not been explored ...

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