18 July 2017
An internal combustion engine can, temporarily, develop at any speed a maximum usable horsepower; also, can temporarily, run at much higher speeds than economically feasible with […]
10 November 2021
The effective density of the circulating fluid in the wellbore resulting from the sum of the hydrostatic pressure imposed by the static fluid column and the […]
25 July 2017
The shift of duty on a drilling rig that starts in the afternoon and runs through the evening. Sometimes called afternoon tour. Compare daylight tour, graveyard […]
18 July 2017
A well drilled to permit more effective extraction of oil from a reservoir. Sometimes called a development well.