Drilling

Drilling

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

Contributors in Drilling

Drilling

The operation of squeezing a gunk plug into a zone of lost circulation. When spotted next to the zone, the annular blowout preventers are closed and pressure is applied by further pumping to force ...

moon pool

Oil & gas; Drilling

The opening in the hull of a drillship or other offshore drilling vessel through which drilling equipment passes.

oil on cuttings

Oil & gas; Drilling

The oil content of cuttings, normally expressed as grams of oil adsorbed per kilogram of dry cuttings. The value has been used as the basis for discharge regulations for oil-base muds in several ...

fly ash

Oil & gas; Drilling

The noncombustible residue from the burning of pulverized coal. Fly ash is pozzolanic and is frequently used to replace a portion of the cement and reduce its density.

Chenevert Method

Oil & gas; Drilling

The name given by API to the electrohygrometer method for testing oil mud and cuttings samples for water-phase activity, a w .

osmosis

Oil & gas; Drilling

The movement of water from one aqueous system to another through a semipermeable membrane. Osmotic movement is driven by activity differences between the two systems and can be considered as a ...

equivalent weight

Oil & gas; Drilling

The molecular weight of an element, molecule or ion divided by its valence (or valence change for a redox reaction). For example, the molecular weight of calcium hydroxide, or "slaked lime," (Ca(OH) ...