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Method of and apparatus for drilling oil wells. United States Patent 1981525. Inventors: Price, Bailey E. Publication Date: 11/20/1934. View Patent Images: ...
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www.freepatentsonline.com/1981525.html
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Apparatus for treating oil-contaminated drill cuttings from a well drilling operation through a subsurface formation which is substantially free of sand and ...
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www.patentstorm.us/patents/4480702/claims.html
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Patent Abstract: An apparatus and method for drilling two separate and independent wellbores through a single surface casing. According to one aspect of the ...
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www.patentstorm.us/patents/6543553.html
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An improved method and apparatus for preventing buildup of cuttings or debris in underwater oil wells. The apparatus includes a drilling tool in the form of a primary tubular member having an internal ... An improved method and apparatus for preventing buildup of cuttings or debris in underwater oil wells.
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freepatentsonline.com/4060140.html
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The field of invention relates to apparatus that uses the steel drill string attached to a drilling bit during drilling operations used to drill oil and gas wells for a second purpose as the casing that is cemented in place during typical oil andgas well completions.
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www.patentgenius.com/patent/7228901.html
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NAICS #213111 | This U.S. industry comprises establishments primarily engaged in drilling oil and gas wells for others on a contract or fee basis. This industry includes contractors that specialize ... and Merchant wholesale distribution of insulated wire--are classified in Industry 423610, Electrical Apparatus and Equipment,
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www.ameinfo.com/db-845123.html
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Derrick - support structure that holds the drilling apparatus; tall enough to allow new sections of ... The U.S. Department of Energy and the oil industry are working on new ways to drill oil, including horizontal drilling techniques, to reach oil under ecologically-sensitive areas, and using lasers to drill oil wells.
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science.howstuffworks.com/oil-drilling.htm/printable
science.howstuffworks.com/oil-drilling.htm/printable
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1. Apparatus for removing metal cuttings from oil well drilling mud, comprising:a) a magnetized bar having first and second end portions and a generally uniform cross section;b) a first end plate attached to one end portion and extending radially and circumferentially from the magnetized bar;c) a second end plate...
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www.faqs.org/patents/app/20090218145
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Description of how to drill for oil and gas. ... turntable - part of the drilling apparatus ... The U.S. Department of Energy and the oil industry are working on new ways to drill oil, including horizontal drilling techniques, to reach oil under ecologically-sensitive areas, and using lasers to drill oil wells.
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www.elsandcompany.com/howdrillingworks.htm
www.elsandcompany.com/howdrillingworks.htm
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