دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the flecible hi-pressure pipe connecting the riser pipe and the water tap in rotary system

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

n: see riser pipe.

n: see riser pipe.

n: a pipe through which liquid travels upward. See riser pipe.

n: a term initially applied to the assembly of pressure-control equipment used on slickline operations to house the tool string in preparation for running into the well for retrieval of the tool string on completion of the operation. The lubricator is assem

pipe through which liquid travels upward.

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

n: the pipe and special fittings used on floating offshore drilling rigs to establish a seal between the top of the wellbore, which is on the ocean floor, and the drilling equipment, located above the surface of the water. A riser pipe serves as a guide for the drill stem from the drilling vessel to the wellhead and as a conductor of drilling fluid from the well to the vessel. The riser consists of several sections of pipe and includes special devices to compensate for any movement of the drilling rig caused by waves. Also called marine riser pipe.

n: A telescoping joint at the surface in floating offshore operations that permits vessel heave (vertical motion) while maintaining a riser pipe to the seafloor. As the vessel heaves, the slip joint telescopes in or out by the same amount so that the riser b

n: see telescoping mast. telescoping joint n: a device used in the marine riser system of a mobile offshore drilling rig to compensate for the vertical motion of the rig caused by wind, waves, or weather. It consists of an inner barrel attached beneath the rig floor and an outer barrel attached to the riser pipe and is an integrated part of the riser system.

n: The derrick that can be setted upright by lifting tackle or hydraulic system.