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  2. Deepwater drilling - Wikipedia

    en.wikipedia.org/wiki/Deepwater_drilling

    Deepwater drilling, [1] or deep well drilling, [2] is the process of creating holes in the Earth's crust using a drilling rig for oil extraction under the deep sea. There are approximately 3400 deepwater wells in the Gulf of Mexico with depths greater than 150 meters. [3] [full citation needed]

  3. List of oilfield service companies - Wikipedia

    en.wikipedia.org/wiki/List_of_oilfield_service...

    This is a list of oilfield service companies – which provide services to the petroleum exploration and production industry but do not typically produce petroleum. In the list, notable subsidiary companies and divisions are listed as sub-lists of their current parent companies.

  4. Drilling rig - Wikipedia

    en.wikipedia.org/wiki/Drilling_rig

    An automated drill rig (ADR) is an automated full-sized walking land-based drill rig that drills long lateral sections in horizontal wells for the oil and gas industry. [8] ADRs are agile rigs that can move from pad to pad to new well sites faster than other full-sized drilling rigs. Each rig costs about $25 million.

  5. Drilling Down Into Bakken Well Costs - AOL

    www.aol.com/news/2013-05-31-drilling-down-into...

    It's done so due to drilling and completion efficiencies as well as moving to multi-well pads. Continental is looking to shave its completed well costs to $8.2 million by the end of the year.

  6. Extraction of petroleum - Wikipedia

    en.wikipedia.org/wiki/Extraction_of_petroleum

    Deep well drilling – Using a drilling rig to bore holes for petroleum extraction in deep sea; Directional drilling – Practice of drilling non-vertical bores; Driller (oil) – Leader in charge during well drilling; Drilling fluid – Aid for drilling boreholes into the ground

  7. 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."

  8. China is drilling new 10,000m deep hole into Earth to search ...

    www.aol.com/china-drilling-10-000m-deep...

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  9. Drill bit (well) - Wikipedia

    en.wikipedia.org/wiki/Drill_bit_(well)

    For this reason, the effectiveness of a bit is often measured as drilling cost per foot of hole drilled, where a lower number indicates a higher performing bit. Note that the cost of the bit itself often is a rather small part of the overall drilling cost. Within the last couple of decades, a third design goal has become important in some cases.

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