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  2. Schlumbergera - Wikipedia

    en.wikipedia.org/wiki/Schlumbergera

    Schlumbergera is a small genus of cacti with six to nine species found in the coastal mountains of south-eastern Brazil.These plants grow on trees or rocks in habitats that are generally shady with high humidity, and can be quite different in appearance from their desert-dwelling cousins.

  3. 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.

  4. Well logging - Wikipedia

    en.wikipedia.org/wiki/Well_logging

    Conrad developed the Schlumberger array, which was a technique for prospecting for metal ore deposits, and the brothers adapted that surface technique to subsurface applications. On September 5, 1927, a crew working for Schlumberger lowered an electric sonde or tool down a well in Pechelbronn, Alsace, France creating the first well log.

  5. Formation evaluation gamma ray - Wikipedia

    en.wikipedia.org/wiki/Formation_evaluation_gamma_ray

    The formation evaluation gamma ray log is a record of the variation with depth of the natural radioactivity of earth materials in a wellbore. Measurement of natural emission of gamma rays in oil and gas wells are useful because shales and sandstones typically have different gamma ray levels.

  6. Perforation (oil well) - Wikipedia

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

    A perforation in the context of oil wells refers to a hole punched in the casing or liner of an oil well to connect it to the reservoir.Creating a channel between the pay zone and the wellbore to cause oil and gas to flow to the wellbore easily.

  7. Turnkey - Wikipedia

    en.wikipedia.org/wiki/Turnkey

    Common usage. Turnkey refers to something that is ready for immediate use, generally used in the sale or supply of goods or services. The word is a reference to the fact that the customer, upon receiving the product, just needs to turn the ignition key to make it operational, or that the key just needs to be turned over to the customer.

  8. Production packer - Wikipedia

    en.wikipedia.org/wiki/Production_packer

    A production packer is a standard component of the completion hardware of oil or gas wells used to provide a seal between the outside of the production tubing and the inside of the casing, liner, or wellbore wall.

  9. Sucker rod - Wikipedia

    en.wikipedia.org/wiki/Sucker_rod

    A sucker rod is a steel rod, typically between 25 and 30 feet (7 to 9 meters) in length, and threaded at both ends, used in the oil industry to join together the surface and downhole components of a reciprocating piston pump installed in an oil well.