دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device containing a valve that closes around the wireline to shut in the well if high pressure threatens a blowout. Also called a wireline valve.

n: see core barrel.

n: We dont need to trip out and can coring sequentially with this core barrel.

n: a coring method in which a core barrel assembly is lowered through the drill pipe on wireline without tripping out the drill pipe. After the core is drilled, the core and the core barrel are retrieved by an overshot assembly.

n: a device usually run on a solid wireline to cut another wireline stuck in a well.

n: It be used to cut the wire line of downhole.

n: see electric logging.

n: a flared-end sub run on the end of the tubing string to permit easy access of wireline tools into the tubing ID.

a small fitting on the end of a tubing string that is shaped to allow easier entry of logging tools when pulled back into the tubing from the wellbore below.

n: a tool used to gouge and clean junk and debris from the casing in conjunction with a junk catcher.

a fishing tool used to find and catch wireline in preparation for fishing the line.

n: a formation fluid sampling device, actually run on conductor line rather than wireline, that also logs flow and shut-in pressure in rock near the borehole. A spring mechanism holds a pad finnly against the sidewall while a piston creates a vacuum in a test chamber. Formation fluids enter the test chamber through a valve in the pad. A recorder logs the rate at which the test chamber is filled. Fluids may also be drawn to fill a sampling chamber. Wireline formation tests may be done any number of times during one trip in the hole, so they are very useful in formation testing.

a formation fluid sampling device.

n: a tool used to fish broken wireline out of tubing. Two or three barbed prongs extend along the inside of the Ushaped housing. Wireline becomes caught on these prongs and can be retrieved.

n: any log that is run on wireline.