18 July 2017
Laboratory analysis of a core sample to determine porosity, permeability, lithology, fluid content, angle of dip, geological age, and probable productivity of the formation.
18 July 2017
A tubular device, usually from 10 to 60 ft (3 to 18 m) long, run at the bottom of the drill pipe in place of a […]
18 July 2017
The part of the core barrel that holds the formation sample.
18 July 2017
The cutting element of the core barrel assembly. In design it corresponds to one of the three main types of bits; drag bits with blades for […]
10 November 2021
Nonferrous-based alloys where any one or the sum of the specified amount of the elements titanium, nickel, cobalt, chromium, and molybdenum exceeds 50% mass fraction.
18 July 2017
1) in piping, a metal collar with internal threads used to join two sections of threaded pipe. 2) in power transmission, a connection extending longitudinally between […]
18 July 2017
Term meaning the hole is caving in. To crater refers to the results that sometime accompany a violent blowout during which the surface surrounding the wellbore […]
10 November 2021
The static gel strength of the cement that results in the decay of hydrostatic pressure to the point at which pressure is balanced (hydrostatic equals pore […]
18 July 2017
A wellbore that has been unintentionally drilled in a direction other than vertical. It usually occurs where there is a section of alternating hard and soft […]
18 July 2017
An assembly of sheaves mounted on beams at the top of the derrick and over which the drilling line is reeved. See block, reeve, sheave.
18 July 2017
The fragments of rock dislodged by the bit and brought to the surface in the drilling mud. Washed and dried cuttings samples are analyzed by geologists […]
18 July 2017
A rig that utilizes a hydraulically powered hoisting system with long stroke cylinders for pushing a sheave cluster and traveling assembly vertically. These cylinders and sheave […]
