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Casing head (#27) is a large metal flange welded or screwed onto the top of the conductor pipe (also known as drive-pipe) or the casing and is used to bolt the surface equipment such as the blowout preventers (for well drilling) or the Christmas tree (oil well) (for well production).
When the well has been drilled, it is completed to provide an interface with the reservoir rock and a tubular conduit for the well fluids. The surface pressure control is provided by a Christmas tree , which is installed on top of the wellhead, with isolation valves and choke equipment to control the flow of well fluids during production.
Some statistics on this page are disputed and controversial—different sources (OPEC, CIA World Factbook, oil companies) give different figures. Some of the differences reflect different types of oil included. Different estimates may or may not include oil shale, mined oil sands or natural gas liquids.
OCTG – oil country tubular goods (oil well casing, tubing, and drill pipe) [23] OD – outer diameter (of a tubular component such as casing [citation needed]) ODT – oil down to; OFE – oil field equipment; OFST – offset vertical seismic profile; OEM – original equipment manufacturer; OFIC – offshore interim completion certificate
Top 5 oil-producing countries 1980–2022 World oil production. This is a list of countries by oil production (i.e., petroleum production), as compiled from the U.S. Energy Information Administration database for calendar year 2023, tabulating all countries on a comparable best-estimate basis.
The list is incomplete; there are more than 25,000 oil and gas fields of all sizes in the world. [1] However, 94 % of known oil is concentrated in fewer than 1,500 giant and major fields. [ 2 ] Most of the world's largest oilfields are located in the Middle East , but there are also supergiant (>10 billion bbls ) oilfields in Brazil, Mexico ...
List of Tankers Vessel Name Operator IMO Number Ship Type Country DWT Year; ALICE [1] 9709087 Crude Oil Tanker Belgium: 299982 2016 ANTONIS I.ANGELICOUS [2] 9930777 Crude Oil Tanker Greece: 165054 2023 DALIAN [3] 9595228 Crude Oil Tanker United States: 299981 2013 DELTA AIGAIGON [4] 9516923 Crude Oil Tanker United States: 319725 2014 DELTA ...
[citation needed] Outside biology and medicine, people usually refer to forceps as tweezers, tongs, pliers, clips or clamps. Mechanically, forceps employ the principle of the lever to grasp and apply pressure. Depending on their function, basic surgical forceps can be categorized into the following groups: Non-disposable forceps.