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Two categories of blowout preventer are most prevalent: ram and annular. BOP stacks frequently utilize both types, typically with at least one annular BOP stacked above several ram BOPs. Blowout preventers are used on land wells, offshore rigs, and subsea wells. Land and subsea BOPs are secured to the top of the wellbore, known as the wellhead.
Cameron ram-type blowout preventer. The Cameron ram-type blowout preventer was the first successful blowout preventer (BOP) for oil wells. It was developed by James S. Abercrombie and Harry S. Cameron in 1922. [1] [2] The device was issued U.S. patent 1,569,247 on January 12, 1926. [3] The blowout preventer was designated as a Mechanical ...
[1] Abercrombie was born the fourth of 13 children in Huntsville, Texas to parents James Buford and Evelina Abercrombie Jr on 7 July, 1891. He attended a grammar school in his hometown throughout childhood, before eventually his family was forced to move in 1900, citing a combination of the harsh winters in the area, as well as an infestation ...
Failure of blowout preventer equipment was a major cause of the April 2010 disaster that killed 11 workers and resulted in an estimated 130 million gallons of crude oil spewing into the Gulf of ...
[1] While drilling the oil well, surface pressure control is provided by a blowout preventer (BOP). If the pressure is not contained during drilling operations by the column of drilling fluid , casings, wellhead, and BOP, a well blowout could occur.
On July 15, 2010, BP announced that it had successfully plugged the oil leak using a tightly fitted cap. The cap, weighing 75 tons and standing 30 feet (9.1 m) high, was bolted to the failed blowout preventer. It consisted of a Flange Transition Spool and a 3 Ram Stack and was a temporary solution. [29] [30]
The blowout preventer is tested and found to be "functional." [20] Gagliano now reports that using only 6 centralizers "would likely produce channeling and a failure of the cement job." [11] April 18 – Gagliano's report says "well is considered to have a severe gas flow problem."
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