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

material-balance equation

Oil & gas; Drilling

Mathematical relationship between the densities and the corresponding volumes of mixtures of liquid-solid slurries and clear fluid blends, such as drilling muds and completion fluids. Assumptions ...

autochthonous

Oil & gas; Drilling

Materials, especially rock masses, that formed in their present location and have not been transported. Fault surfaces can separate indigenous rocks from allochthonous rocks, although some ...

acrylate polymer

Oil & gas; Drilling

Linear, anionic polymer made from the monomer acrylic acid, CH 2 =CHCOO - H + . The acrylic acid groups are evenly spaced along the chain. Acrylic acid polymer neutralized with NaOH is sodium ...

casing

Oil & gas; Drilling

Large-diameter pipe lowered into an openhole and cemented in place. The well designer must design casing to withstand a variety of forces, such as collapse, burst, and tensile failure, as well as ...

Large capacity self-locking wrenches used to grip drillstring components and apply torque. The breakout tongs are the active tongs during breakout operations. A similar set of tongs is tied off to a ...

tongs

Oil & gas; Drilling

Large-capacity, self-locking wrenches used to grip drillstring components and apply torque. As with opposing pipe wrenches for a plumber, the tongs must be used in opposing pairs. As a matter of ...

gels

Oil & gas; Drilling

Jargon referring to the two gel-strength values for a mud. The 10-second and 10-minute "gels," often written as one number over the other. For example, 6/16 means 6 lb/100 ft 2 and is ...