A generic term, originally a trademark name, used to describe a stage tool, used in selective zone primary cementing.

A sliding-sleeve ported casing section used in stage cementing.

A cementing repair technique involving injecting cementing under pressure to fill channels in the primary cementing treatment.

A tool used to open or close a downhole valve; a tool used to set or release a downhole tool, such as a retrievable bridge plug.

1. a bladed or bow spring tool that helps center tools or pipe in the wellbore.
2. a mechanical device to position casing concentrically in the wellbore. a centralizer is usually used during cementing operations to provide a constant annular space around the casing, rather than having the casing lying eccentrically against the borehole wall. for [...]

A generic term used to describe a retrievable service squeeze tool; used in remedial cementing.

A remedial cementing operation designed to force cement into leak paths in wellbore tubulars. the required squeeze pressure is achieved by carefully controlling pump pressure. squeeze cementing operations may be performed to repair poor primary cement jobs, isolate perforations or repair damaged casing or liner.

The string of drill pipe tubing suspended in a well to which is attached a special tool or device that is used to carry out a certain task, as squeeze cementing or fishing.

The string of drill pipe or tubing suspended in a well to which is attached a special tool or device that is used to carry out a certain task, such as squeeze cementing or fishing.

The tool man; a packer hand; a service company hand.

A heavy coupling element for drill pipe. it is made of special ahoy steel and has coarse, tapered threads and seating shoulders designed to sustain the weight of the drill stem, withstand the strain of frequent coupling and uncoupling, and provide a leakproof seal. the male section of the joint, or the pin, is attached [...]

A tubular device employed as an isolation tool inside the christmas tree, to increase the tree’s pressure rating during stimulation.

A retrievable or drillable packer in which sufficient pipe weight is not available to set the tool in compression.

A tool used to set drillable or permanent tools, such as packers, retainers, plugs; can be mechanical, electric, or hydraulic.

Any cementing operation after the primary cementing operation. secondary cementing includes a plug-back job, in which a plug of cement is positioned at a specific point in the well and allowed to set. wells are plugged to shut off bottom water or to reduce the depth of the well for other reasons.