Drilling

Drilling

Of or relating to the penetration of the Earth's surface in order to extract petroleum oil.

Industry: Oil & gas

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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.

monomer

Oil & gas; Drilling

The chemical unit from which a polymer is made.

cementer

Oil & gas; Drilling

The colloquial term for the crew member in charge of a specialized cementing crew and trucks.

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 in the subsurface and ...

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 thixotropic fluid ...

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 test.

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 bend in a plot of ...