The recovery of oil and gas through the injection of liquids or gases into the reservoir, supplementing its natural energy. Secondary recovery methods are often applied when production slows due to depletion of the natural pressure.
n: 1. the use of water-flooding or gas injection to maintain formation pressure during primary production and to reduce the rate of decline of the original reservoir drive. 2. water-flooding of a depleted reservoir. 3. the first improved recovery method of any type applied to a reservoir to produce oil not recoverable by primary recovery methods. See primary recovery.
Recovery of hydrocarbons from a reservoir by increasing reservoir pressure by injecting gas or water into reservoir rock. (see also Primary and Tertiary Recovery.)
Hydrocarbons produced in one well bore by increasing reservoir pressure with water injected into an adjacent well bore.
Enhanced recovery of oil or gas from a reservoir beyond the oil or gas that can be recovered by normal flowing and pumping operations. Secondary recovery techniques involve maintaining or enhancing reservoir pressure by injecting water, gas or other substances into the formation. See also enhanced recovery and tertiary recovery.
The recovery of reserves by pressure maintenance through the injection of water or gas to increase the reservoir pressure and force the hydrocarbons up to the lower-pressure surface facilities.
Recovery of oil or gas from a reservoir by artificially maintaining or enhancing the reservoir pressure by injecting gas, water or other substances into the reservoir rock.
An artificial method or process used to restore or increase production from a reservoir after the primary production by the natural producing mechanism and the reservoir pressure has experienced partial depletion. Gas injection and waterflooding are examples of this technique.
The extraction of additional crude oil, natural gas and related substances from reservoirs through pressure maintenance techniques such as water flooding and gas injection.
Injecting water or natural gas into a producing reservoir to maintain reservoir pressure and enhance recovery of oil.