دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. (slang) an oilfield worker who moves from one centre of activity to another;a floater or transient.2. a device used to tighten chains on a load of pipe or other equipment on a truck to make it secure.

n: a bottle released at sea to measure currents. It contains a card stating the date and location of release. The person who finds the bottle writes on the card the date and location of the bottles recovery and returns the card. Also called a floater.

n: a component of the marin riser system that can accommodate some lateral movement when drilling from a floater.

n: see drift bottle. floating offshore drilling rig.

n: general term used for a floating drilling rig.

an outer steel shell that connects a drill ship, jackup or floater to the well template on the ocean floor. The drill string is run through the riser and the returning mud and cutting flow u the drill pipe / riser annulus.

n: the component in a blowout preventer that cuts. or shears, through drill pipe and forms a seal against well pressure. Shear rams are used in floating offshore drilling operations to provide a quick method of moving the rig away from the hole when there is no time to trip the drill stern out of the hole.

n: the component of the BOP stack (q.v.) that cuts through the drill pipe and forms aseal across the wellbore. These are used on floaters when the rig must be moved off location in an emergency.

a ram in the BOP that shears off the pipe.