Upstream - Activities concerned with finding petroleum and producing it, compared to downstream which are all the operations that take place after production. The pressure exerted by a vapor held in equilibrium with its solid or liquid state. Viscosity - A fluid's resistance to flowing. A tanker built to carry 200,000 to 350,000 dwt of crude oil. Wasting assets - Assets that will eventually lose their value.
Water drive - The most efficient driving mechanism to force oil and gas out of the reservoir.
Waterflooding - A secondary recovery method in which water is injected into a reservoir to force additional oil into the wells. Well platform - An offshore structure that supports a well's surface controls and flow piping. The procedure for drilling, casing, and completing a well. Wellbore - Physically, wellbore refers to a borehole, in other words a completed well. Wellhead - A device on the surface used to hold the tubing in the well.