دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a method of lubricating a chain-and-sprocket drive in which a reservoir drips oil onto the chain at 4 to 20 drops per minute, depending on the speed of the drive. A drip lubricator for a multistrand drive has a pipe to distrioote the oil to all strands.

n: a tool that installed on the cone bit in early phase is use to lubricate bit bearing.

n: a surface device used in pressure control for slickline. See also lubricator.

a pressure control method for forming a pressure seal around braded line and electric line. Grease is injected between special tubes in a high pressure housing. The tubes are slightly larger than the line and grease seals the remaining area.

n: a pulley that is normally attached to the wellhead at a convenient place for the wireline to pass through as it comes from the stuffing box sheave before being spooled onto the wireline reel. The hay pulley prevents any lateral force from being exerted on the lubricator and the wellhead.

lubricator.

n: a specially fabricated length of casing or tubing usually placed temporarily above a valve on top of the casing- head or tubing head. It is used to run swabbing or perforating tools into a producing well and provides a method for sealing off pressure and thus should be rated for highest anticipated pressure.

n: A long, high-pressure pipe fitted to the top of a wellhead or Christmas tree so that tools may be put into a high-pressure well. The top of the lubricator assembly includes a high-pressure grease-injection section and sealing elements. The lubricator is i

a pressurized shell, mounted above the BOP or master valve, which houses the tool string when entering a live well.

n: see lubricator.

n: a gland arrangement that mechanically or hydraulically seals by pressure. It is used to prevent leakage and waste of gas, oil, or water around a wireline (as when swabbing a well).

n: packing box that made of pressure seal steel wire. Which prevents the leakage of ioil, water or gas around the steel wire.

a seal arrangement on top of a wireline lubricator that prevents loss of oil or gas to the atmosphere.

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: see lubricator.