دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a method of improved recovery in which alkaline chemicals such as sodium hydroxide are injected during a water flood or combined with polymer flooding. The chemicals react with the natural acid present in certain crude oils to form surfactants within the reservoir. The surfactants enable the water to move additional quantities of oil from the depleted reservoir. Compare chemical flooding, polymer flooding, water flooding.

n: a bridge plug or cement plug placed near the bottom of the bole to shut off a depleted, water-producing, or unproductive zone.

n: Refers to the cement plug or bridge plug located in the downhole, used to packoff depleted formation and water yield formation.

n pi: a classification of injection wells under SDWA that are related to oil and gas activity. Typically, these wells are used to dispose of produced waters into depleted oil formations below drinking water sources;to inject produced water from production operations back into the producing zone;to inject fluids for enhanced recovery;and to store hydrocarbons.

the slope of the production rate vs. cumulative time or volume measurement. The decline of a well predicts how fast it is being depleted.

v: to exhaust a supply. An oil and gas reservoir is depleted when most or all economically recoverable hydrocarbons have been produced.

water at the sides or edges of the hydrocarbon deposit. Often causes problems because the channels that deplete the fastest are the highest permeability and water production through them can be severe. These respond well to treatment if they can be isolat