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  2. Well drilling - Wikipedia

    en.wikipedia.org/wiki/Well_drilling

    The earliest record of well drilling dates from 347 AD in China. [1] Petroleum was used in ancient China for "lighting, as a lubricant for cart axles and the bearings of water-powered drop hammers, as a source of carbon for inksticks, and as a medical remedy for sores on humans and mange in animals."

  3. 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 ...

  4. WELL Building Standard - Wikipedia

    en.wikipedia.org/wiki/WELL_Building_Standard

    WELL Water aims to increase the rate of adequate hydration in building and reduce risks due to contaminated water. Human's body is two-thirds water, recommended water intake around 2 - 3.7 litres per day to let respiration, perspiration and excretion works. Water with high nitrate can impair oxygen transport in infants, causing neurodevelopment ...

  5. Injection well - Wikipedia

    en.wikipedia.org/wiki/Injection_well

    An injection well is a device that places fluid deep underground into porous rock formations, such as sandstone or limestone, or into or below the shallow soil layer. The fluid may be water, wastewater, brine (salt water), or water mixed with industrial chemical waste. [1]

  6. Artesian well - Wikipedia

    en.wikipedia.org/wiki/Artesian_well

    An artesian well is a well that brings groundwater to the surface without pumping because it is under pressure within a body of rock or sediment known as an aquifer. [1] When trapped water in an aquifer is surrounded by layers of impermeable rock or clay, which apply positive pressure to the water, it is known as an artesian aquifer. [1]

  7. Borehole - Wikipedia

    en.wikipedia.org/wiki/Borehole

    Drilling for boreholes was time-consuming and long. As the depth of the holes varied, the drilling of a single well could last nearly one full decade. [4] It was not up until the 19th century that Europe and the West would catch up and rival ancient Chinese borehole drilling technology. [10] [5]

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