18 July 2017
Intentional deviation of a wellbore from the vertical. Although wellbores are normally drilled vertically, it is sometimes necessary or advantageous to drill at an angle from […]
18 July 2017
The first oil or gas well drilled in a new field that reveals the presence of a hydrocarbon-bearing reservoir. Subsequent wells are development wells. Compare development […]
18 July 2017
A BOP control system that utilizes pilot hoses from the surface to transmit hydraulic pressure signals to activate pilot operate valves assigned to functions on the […]
18 July 2017
In oilwell cementing, the fluid, usually drilling mud or salt water, that is pumped into the well after the cement is pumped into it to force […]