18 July 2017
See Horizontal tubular transfer.
18 July 2017
The collapse of the walls of the wellbore; also called Sloughing.
18 July 2017
A pit in the ground, usually lined with concrete or steel pipe, that provides additional height between the rig floor and the wellhead to accommodate the […]
9 November 2021
Measures integrity of cement bond between tubing/casing and well bore. The cement bond evaluation for large-diameter casing can be technically challenging because it can reach the […]
18 July 2017
To fill the annulus between the casing and wall of the hole with cement to support the casing and prevent fluid migration between permeable zones.
18 July 2017
When casing is being cemented in a borehole, the cement slurry can fail to rise uniformly between the casing and the borehole wall, leaving spaces devoid […]
18 July 2017
The application of a liquid slurry of cement and water to various points inside or outside the casing. See Primary cementing, Secondary cementing, Squeeze cementing.
18 July 2017
Spring steel guides which are attached to casing and which serve to keep it centered in the hole.
10 November 2021
A document in which the manufacturer certifies that the assembly or part is in conformance to the mentioned standard(s), specifications, and guidelines in accordance with the […]
18 July 2017
A mechanical drive using a driving chain and chain gears to transmit power. Power transmissions use a roller chain, in which each link is made of […]
18 July 2017
A tool consisting of a handle and releasable chain used for turning pipe or fittings of a diam larger than that which a pipe wrench would […]
18 July 2017
Rams are the flexible elements which accomplish the sealing effect of the blowout preventer. It is necessary to change the rams when drill pipe of a […]
