دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 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. In production, it is usually made up in the tubing string some distance above the producing zone. A packing element expands to prevent fluid flow except through the packer and tubing. Packers are classified according to configuration, use, and method of setting and whether or not they are retrievable (that is, whether they can be removed when necessary, or whether they must be milled or drilled out and thus destroyed).

n: a downhole tool, run on drill pipe, tubing or casing, which can be used extensively in drill stem tests, cement squeezes and complections.

a device that forms a seal between two chambers of the well. Packers may be equipped with slips that anchors the packer and stops movement under high pressure.