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Oil & gas
Terms concerning oil and gas as a fossil fuel and natural resource.
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Oil & gas > Drilling 
drillstring
Oil & gas; Drilling
The combination of the drillpipe, the bottomhole assembly and any other tools used to make the drill bit turn at the bottom of the wellbore.
calcium sulfate
Oil & gas; Drilling
The chemical CaSO 4 , which occurs naturally as the mineral anhydrite. Gypsum is the dihydrate mineral form, CaSO 4 路2H 2 O. Anhydrite and gypsum (commonly called gyp) are found ...
thixotropy
Oil & gas; Drilling
The characteristic of a fluid, such as a drilling mud, to form a gelled structure over time when not subject to shearing and then to liquefy when agitated. The viscosity of a ...
temperature stability
Oil & gas; Drilling
The characteristic of a drilling fluid or a mud product pertaining to its response to prolonged heating, usually in a controlled mud composition in a rolling- or static-aging ...
right-angle set
Oil & gas; Drilling
The characteristic of a cement slurry whose consistency changes from the point of departure or 30 Bc to 100 Bc in a short time. The term refers to the characteristic 90-degree ...
Sub-categories
- corrosion inhibition (0)
- Downhole (49)
- Drilling (9514)
- Environmental management (93)
- Fuel handling (16)
- Horizontal directional drilling (7)
- Offshore oil exploration (2047)
- Oil (4406)
- Oil & gas instrumentation (856)
- Oilfield (22159)
- Pipeline related (90)