A ring of packing or a special device to render gas-tight and water-tight the space between the tubing and bore of an oil well.
A flexible rubber sleeve that is part of a special joint of pipe.
A downhole, expanding plug-like device which is used to seal off certain parts of tubing, casing, or open hole when cementing, acidizing, or isolating specific zones of a formation for production or testing. Packers can be run on logging cables, tubing, drill pipe, or casing and when in position can be expanded to form a seal to confine fluid flow to the inside bore of the packer.
A device lowered into a borehole, which automatically swells or can be made to swell at the correct time to produce a water tight joint against the side of the borehole or casing.
an inflatable rubber element that inflates to sea
an inflatable rubber element that inflates to seal
an isolation tool to separate gas production zones
An expanding plug used in a well to seal off certain sections of the tubing or casing when cementing, acidizing, or when a production formation is to be isolated. Packers are hung on the tubing or the casing and when in position can be expanded hydraulically or mechanically against the pipe wall or the wall of the well bore.
An inflatable gland, or balloon, used to create a temporary seal in a borehole, probe hole, well, or drive casing. It is made of rubber or non-reactive materials.
open and cased-hole devices used to create seals to control fluid flow.
A seal used to isolate a section of a well, eg for testing or production from one of several formations. Packers are also used in operations such a cementing and acidizing.
a device (often rubber) which seals off a section of the well during testing.
A piece of downhole equipment that consists of a sealing device, a holding or setting device, and an inside passage for fluids. It is used to block the flow of fluids through the annular space between pipe and the wall of the wellbore by sealing off the space between them.