دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: to reverse the flow of fluid from a water injection well to get rid of sediment that has clogged the wellbore.

v: The verb form of backwashing.

n: see alkaline (caustic) flooding, micellarpolymer flQoding.

one of several methods involving injecting a chemical into a formation to improve the production of hydrocarbon. May be from an injection well to a production well or injection into a producer with a soak period before recovery.

n pi: a classification of injection wells under Safe Drinking Water Act that are related to hazardous, industrial nonhazardous, and municipal wastewater disposal below underground sources of drinking water.

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.

n: a produciton log used to determine which of several zones contributes the most to the total production or, in the case of an injection well, which zone is receiving the most injected fluids.

n: (EOR) 1. the introduction of artificial drive and displacement mechanisms into a reservoir to produce a portion of the oil unrecoverable by primary recovery methods. To restore formation pressure and fluid flow to a substantial portion of a reservoir, fluid or heat is introduced through injection wells located in rock that has fluid communication with production wells. See alkaline (caustic) flooding, gas injection, micellar-polymer flooding, primary recovery, secondary recovery, tertiary recovery, thermal recovery, waterflooding. 2. the use of certain recovery methods that not only restore formation pressure but also improve oil displacement or fluid flow in the reservoir. These methods may include chemical flooding, gas injection, and thermal recovery.

one or more of a variety of processes that seek to improve recovery of hydrocarbon from a reservoir after the primary production phase.

n: four input or injection wells located in a square pattern with the production well in the centre.

n: a common type of in situ combustion in which the combustion front moves in the same direction as the injected air. Burning is started at an injection well and moves toward production wells as air is continuously injected into the injection well. Compare reverse combustion.

n: see gas input well.

n: a well into which gas is injected for the purpose of maintaining or supplementing pressure in an oil reservoir. More commonly called a gas injection well.