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

metamorphic

Oil & gas; Drilling

One of three main classes of rock (igneous, metamorphic and sedimentary). Metamorphic rocks form from the alteration of preexisting rocks by changes in ambient temperature, pressure, volatile ...

hardness ion

Oil & gas; Drilling

One of three divalent cations that can be present in water, including calcium (Ca +2 ), magnesium (Mg +2 ) and ferrous (Fe +2 , a form of iron). Hardness ions develop from dissolved minerals, ...

sedimentary

Oil & gas; Drilling

One of the three main classes of rock (igneous, metamorphic and sedimentary). Sedimentary rocks are formed at the Earth's surface through deposition of sediments derived from weathered rocks, ...

polyalphaolefin

Oil & gas; Drilling

One of the synthetic hydrocarbon liquids manufactured from the monomer ethylene, H 2 C=CH 2 . Polyalphaolefins have a complex branched structure with an olefin bond in the alpha position of one ...

derrickman

Oil & gas; Drilling

One of the rig crew members who gets his name from the fact that he works on a platform attached to the derrick or mast, typically 85 ft (26 m) above the rig floor, during trips. On small land ...

One of the instruments that the driller uses to monitor and improve the operating efficiencies of the drilling operation. The actual measurement of weight is made with a hydraulic gauge attached to ...

rheological property

Oil & gas; Drilling

One of several flow characteristics of a material, such as a drilling fluid, completion fluid, workover fluid or cement. Shear-stress measurements made at a minimum of two shear rates are needed to ...