Drilling

Drilling

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

Contributors in Drilling

Drilling

Gas that is introduced into the drilling mud from a source other than the formation. Contamination gas normally evolves as a by-product of oil-base mud systems and those using volatile additives such ...

trip gas

Oil & gas; Drilling

Gas entrained in the drilling fluid during a pipe trip, which typically results in a significant increase in gas that is circulated to surface. This increase arises from a combination of two factors: ...

drill solids

Oil & gas; Drilling

Formation solids contained in a mud system, generally considered to be detrimental to the drilling operation because they produce high plastic viscosity, yield point and gel strengths and build ...

EDTA

Oil & gas; Drilling

Ethylenediamine tetraacetic acid, the reagent used to titrate for calcium and magnesium ions (hardness ions) in water samples. It is also known as versenate or titraver.

dynamic filter press

Oil & gas; Drilling

Equipment used to measure filtration under dynamic conditions. Two commercial dynamic-filtration testers are available, one of which uses a thick-walled cylinder with rock-like characteristics as the ...

endpoint

Oil & gas; Drilling

During a titration procedure in analytical chemistry, the point at which reagent addition should be immediately stopped and the volume of reagent recorded. The endpoint represents the end of a ...

clear-water drilling

Oil & gas; Drilling

Drilling operations using a water-base drilling fluid that contains few solids. Clear-water drilling is done in "hard rocks" in which density and fluid loss are not critical. Rapid drilling rate is ...