دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the vanish point of drilling fluid on the surface of vibrosieve

n: (ESA) an act that declares the intentions of Congress to conserve threatened and endangered species and the ecosystems on which those species depend. ESA provides for federal designation of species determined to be endangered or threatened. It prohibits the taking of an endangered or threatened species of fish, wildlife, or vegetation.

n: a test that determines the volatility of a gasoline by measuring the percentage of the gasoline that can be distilled at various temperatures.

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: the heat content of fuel. A thermodynamic property, it is the sum of the internal energy of a body and the product of its pressure multiplied by its volume.

n: working-interest owners share of production. This volume may not equal actual sales because of contractual or market conditions.

n: liquid particles that may be carried out of the top of a distillation or absorber column with the vapors or residue gas.

n: (EPA) a federal agency that was created in 1970 from a variety of existing agencies. The EPA administers air pollution, water pollution, pesticide, solid waste, noise control, drinking water, and toxic substances acts. It also has major research responsibilities. Ad- dress: 401 M Street SW;Washington, DC 20460;(202) 260-2090.

n: a neutron having an energy level of 0.02 to 100 electron volts.

n: 1. any compound characterized by the presence of a reactive chemical structure that has an oxygen atom joined to each of two carbon atoms that are already bonded.2. any of various resins capable of forming tight cross-linked polymer structures characterized by toughness, strong adhesion, and high corrosion and chemical resistance. Epoxys are used extensively as coatings and adhesives.

a resin formed by reaction of polyols with epichlorohydrin.