دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device that provides a flexible connection between the riser pipe and the subsea blowout preventers. By accommodating lateral movement of a mobile offshore drilling rig, flex joints help to prevent a build up of abnormal bending load pressure.

n: on offshore floating rigs, a large spool, or reel, onto which the hose bundle is wrapped. The hose bundle consists of several control lines, some electrical and some hydraulic, that run to the control pods on the subsea blowout preventer. When the driller or other person actuates a BOP control on the rig at the surface, the control signal goes through the hose bundle to the control pod on the BOP stack.

n: a device used on floating offshore drilling rigs to provide a way to actuate and control subsea blowout preventers from the rig. Hydraulic lines from the rig enter the pods, through which fluid is sent toward the preventer. Usually two pods, one yellow and one blue, are used, each to safeguard and back up the other. Also called blue pod, yellow pod.

n: (LMRP) the equipment that attaches the lower part of the marine riser to the subsea blowout preventer (BOP) stack. It includes the BOP connector, a flexible joint to compensate for side-to-side movement, and the marine riser connector. See marine riser;subsea blow- out preventer:

n: a fitting on top of the subsea blowout preventers to which the riser pipe is connected.

n: the act of removing the riser pipe (marine riser) from its attachment to the subsea blowout preventer stack.

n: the slight increase in mud weight used to offset friction losses that occur as the mud is circulated through the riser in a subsea blowout preventer system.

n: a pressure test of a subsea blowout preventer stack performed on the rig floor on a test stump-a device that allows pressure to be exerted on the stackto ensure that all the pressure-sealing elements of the stack are working properly.

n: a blowout preventer placed on the seafloor for use by a floating offshore drilling rig.

n: a valve mounted in the choke line of a subsea blowout preventer stack. It serves to regulate the flow of well fluids being circulated through the choke line when the well is closed in.