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  2. Well drilling - Wikipedia

    en.wikipedia.org/wiki/Well_drilling

    Tricone rock bit. 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.

  3. Borehole - Wikipedia

    en.wikipedia.org/wiki/Borehole

    For many years, the world's longest borehole was the Kola Superdeep Borehole in Russia. From 2011 until August 2012 the record was held by the 12,345-metre (40,502 ft) long Sakhalin-I Odoptu OP-11 Well, offshore the Russian island Sakhalin. [11] The Chayvo Z-44 extended-reach well took the title of the world's longest borehole on 27 August 2012 ...

  4. Indiana gas boom - Wikipedia

    en.wikipedia.org/wiki/Indiana_Gas_Boom

    Indiana Gas Field Natural gas miners and their drill, near Kokomo, Indiana, c. 1885. The Indiana gas boom was a period of active drilling and production of natural gas in the Trenton Gas Field, in the US state of Indiana and the adjacent northwest part of Ohio. The boom began in the early 1880s and lasted into the early 20th century.

  5. Bluespring Caverns - Wikipedia

    en.wikipedia.org/wiki/Bluespring_Caverns

    Bluespring Caverns are one of five show caves in Indiana. The other four are Marengo Cave , Wyandotte Caves , Indiana Caverns and Squire Boone Caverns . Twin caves , located in Spring Mill State Park , about 15 minutes south of Bluespring Caverns, near Mitchell, Indiana offers a 20-minute boat tour into the cave which goes back about 600 feet ...

  6. Borehole mining - Wikipedia

    en.wikipedia.org/wiki/Borehole_mining

    Borehole Mining (BHM) is a remote operated method of extraction (mining) of mineral resources through boreholes based on in-situ conversion of ores into a mobile form (slurry) by means of high pressure water jetting (hydraulicking). This process is carried-out from a land surface, open pit floor, underground mine or floating vessel through pre ...

  7. MUB opts for 'no dig' option on Listravia, updates reservoir ...

    www.aol.com/mub-opts-no-dig-option-033400460.html

    "If we were to replace this by the conventional method, digging and putting in new pipe, our engineering staff has estimated that to be about $120, 000 as compared to $67, 000, " McNulty said.

  8. Casing (borehole) - Wikipedia

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

    Casing Diameters of a Borehole Casing Diagram premium gas tight connections on a casing string. 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.

  9. Indiana wants to weed out non-citizens from voter rolls. It ...

    www.aol.com/indiana-wants-weed-non-citizens...

    The constitutional argument against Indiana's bill, as well as similar proposals in those other states, is that the state would be creating different classes of voters by creating extra burdens ...