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  2. Well - Wikipedia

    en.wikipedia.org/wiki/Well

    Cable tool water well drilling rig in Kimball, West Virginia Water well drilling in Ein Hemed, near Jerusalem circa 1964. Rotary drilling machines use a segmented steel drilling string, typically made up of 3m (10ft), 6 m (20 ft) to 8m (26ft) sections of steel tubing that are threaded together, with a bit or other drilling device at the bottom ...

  3. Water well pump - Wikipedia

    en.wikipedia.org/wiki/Water_well_pump

    Deep well pumps extract groundwater from subterranean aquifers, offering a reliable source of water independent of municipal networks. These pumps, often submersible and powered by electricity, can access water reserves located much deeper than shallow wells, ensuring a consistent supply even during periods of drought.

  4. Well drilling - Wikipedia

    en.wikipedia.org/wiki/Well_drilling

    Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring.

  5. Resistivity logging - Wikipedia

    en.wikipedia.org/wiki/Resistivity_logging

    Resistivity logging is used in mineral exploration (for example for exploration for iron and copper ore bodies), geological exploration (deep geological disposal, geothermal wells), and water-well drilling. It is an indispensable tool for formation evaluation in oil- and gas-well drilling.

  6. Drilling rig - Wikipedia

    en.wikipedia.org/wiki/Drilling_rig

    Cable tool drilling was developed in ancient China and was used for drilling brine wells. The salt domes also held natural gas, which some wells produced and which was used for evaporation of the brine. Drake learned of cable tool drilling from Chinese laborers in the U.S. [4] The first primary product was kerosene for lamps and heaters.

  7. Casing (borehole) - Wikipedia

    en.wikipedia.org/wiki/Casing_(borehole)

    Tool joint coating; Well path and dogleg; The following are recommendations for preventative measures to minimize casing wear: Minimization of dogleg severity and expect real dogleg at least 1.5 times higher than the planned value. Usage of casing friendly tool joint materials. Minimize rotor speed and use downhole motor. Increase ROP.

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