A "BOP" is a large, specially designed valve that is mounted on top of the well during the drilling and completion stages of operation. The operator can close this valve to stop the flow of oil or gas in case of emergency.
one of several valves installed at the wellhead to prevent the escape of pressure either in the annular space between the casing and drill pipe or in open hole (i.e., hole with no drill pipe) during drilling completion operations. Blowout preventers on land rigs are located beneath the rig at the land's surface; on jackup or platform rigs, at the water's surface; and on floating offshore rigs, on the seafloor.
A special assembly of heavy-duty valves installed on top of a well which can be closed to prevent high-pressure oil or gas from escaping (a blowout) from the well hole during drilling operations.
(BOP) n: one or more valves installed at the wellhead to prevent the escape of pressure either in the annular space between the casing and the drill pipe or in open hole (for example, hole with no drill pipe) during drilling or completion operations.
An emergency shut-off valve installed on the wellhead which incorporates hydraulic pipe rams capable of closing the space around the drillpipe against very high pressures. The will stop any flow into or out of the well.
The equipment installed at the wellhead for the purpose of controlling rig pressures in the annular space between the casing and drill pipe (or tubing) during drilling, completion and certain workover operations.
A stack or an assembly of heavy-duty valves attached to the top of the casing to control well pressure.
The equipment installed at the wellhead to control pressured in the annular space between the casing and drill pipe or tubing during drilling, completion and workover operations. See also Christmas tree.
Hydraulically or mechanically actuated high-pressure valve installed at the wellhead to control pressure within the well.
An emergency shut-off valve installed on the wellhead during drilling or testing of a well, which incorporates hydraulic pipe rams capable of closing the space around the drillpipe against very high pressures.
a system of valves and rams set in a well which can be closed successively to counteract the uncontrolled rise of oil or gas from a reservoir below.
BOP. A safety device for closing the wellhead, which has rubber rams which can be closed down on the logging cable in the event the well begins to blow out. Blow-out preventers may be connected in series for improved control.
A blowout preventer (BOP) is a large valve that encases an oil well at surface. During drilling, the valve may be closed if overpressure from an oil reservoir causes formation fluids such as oil and natural gas to back up within the wellbore and threaten the rig. By closing this valve (usually operated remotely via hydraulic actuators), the drilling crew can prevent explosive pressure release, thus regaining control of the reservoir pressure.