Blowout Preventer

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blowout preventer

[′blō‚au̇t pri‚ven·tər]
(petroleum engineering)
Any one of several types of valves used on the wellhead to prevent the loss of pressure either in the annular space between drill pipe and casing or in the open hole during drilling completion operations.

Blowout Preventer


a device for the hermetic sealing of a well during drilling. It is used to prevent the open gushing of oil or gas.

References in periodicals archive ?
Cameron delivered the industry's first and only 13-5/8" 25,000 psi blowout preventer to Freeport-McMoRan in 2011.
A remote-controlled, independently powered blowout preventer unit, which allows workers to control what's happening on the rig at a safe distance, must be located a minimum of 100 feet from the well and operational during all post-frac cleanout operations.
Many local and international rig contractors purchase extra blowout preventers to protect or recover the loss caused at the time of maintenance of primary blowout preventers.
The problems with this blowout preventer were worse than we understood," Daniel Horowitz, managing director of the board, told AP.
The blowout preventer sealed the well temporarily, but then it failed and that caused the massive spill, the new 166-page report found.
The well lost control after a blowout preventer failed and was leaking between 50 and 70 barrels per day of fracking fluid that contains chemicals, water and sand, a company spokesman said.
It analyzes the performance of the technologies and practices used, including the blowout preventer and related technology features, and recommends a number of actions that industry and regulators should take to decrease the risk of danger in future drilling operations.
A blowout preventer, or BOP, is the mechanical device intended to control and close off a well if there is an uncontrolled flow of oil and gas.
They include lax regulation, inadequate cement, blowout preventer failure and a poorly coordinated response.
Summary: BP have sued Cameron International Corp for negligence, after a blowout preventer failed to avert the Gulf of Mexico oil spill.
The rig's crew activated a blowout preventer seconds before the blowout began.