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

sulfonated polystyrene-maleic anhydride copolymer

Oil & gas; Drilling

A copolymer of polystyrene (containing sulfonate groups on the ring) and anhydrous maleic acid (a di-hydroxy acid). The sulfonated ring-structure polymer component is anionic and usually low to ...

acrylamido-methyl-propane sulfonate polymer (AMPS)

A copolymer of 2-acrylamido-2methyl propane sulfonate and acrylamide. AMPS polymers are highly water-soluble anionic additives designed for high-salinity and high-temperature water-mud applications. ...

base slurry

Oil & gas; Drilling

A conventional cement slurry used as the cementitious component of a foamed cement slurry.

redox

Oil & gas; Drilling

A contraction of reduction-oxidation, a type of chemical reaction in which one reactant is reduced (gains electrons) while the other is oxidized (loses electrons). Examples of redox mud chemistry ...

wireline log

Oil & gas; Drilling

A continuous measurement of formation properties with electrically powered instruments to infer properties and make decisions about drilling and production operations. The record of the measurements, ...

calcium contamination

Oil & gas; Drilling

A contamination problem caused by Ca +2 ions, usually occurring in fresh water, seawater and other low-salinity and low-hardness mud systems. Soluble calcium comes into a mud from various sources: ...

bit box

Oil & gas; Drilling

A container, usually made of steel and fitted with a sturdy lock, to store drill bits, especially higher cost PDC and diamond bits. These bits are extremely costly but often small in size, so they ...