دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a chemical family of specific organic compounds, including monoethanolamine (MEA),diethanolamine (OEA),and triethanolamine (TEA). These chemicals, and proprietary mixtures containing them and other amines, are used extensively for the removal of hydrogen sulphide and carbon dioxide from other gases and are particularly adapted for obtaining the low acid gas residuals that are usually specified by pipelines.

n: The process that superpolymer is destroied by the microbe and macromolecule fractures to micromolecule.

breaking down alkanes by bacterial action. Common by psedomonis and ultramonis bacteria and other bacterial strains that digest parts of the crude oil structures. Useful for remediating oil spills or tank bottom residuals.

n pi: 1. the liquids and the residue that collect in the bottom of a vessel (such as tank bottoms) or that remain in the bottom of a storage tank after a period of service.2. the residual fractions remaining at the bottom of a fractionating tower after lighter components have been distilled off as vapours.

n: see residuals.

a fuel oil, normally with high sulfur and high viscosity. API gravity of about 10.5o. Also called Navey Heavy and Number 6 fuel oil.

a low alloy steel, containing a mass fraction maximum of 2% carbon, 1.65% manganese and residual quantities of other materials. Common in pipe manufacture.

v: 1. to remove with the bit the residual cement that normally remains in the lower section of casing and the wellbore after the casing has been cemented.2. to remove the settlings and cavings that are plugged inside a hollow fish (such as drill pipe) during a fishing operation.

drilling through the cement after a primary cement job as the hole is deepened.

.. n: a transformer loss caused by magnetism retained in the core of the transformer each time the alternating current is reversed. Some energy must be used to overcome the residual magnetism each time the current reverses.

regionally extensive deposits along the shores of ancient seas. Permeability varies with energy of deposition (amount of residual silt).

n: (MER) the producing rate of a well that brings about maximum volumetric recovery from a reservoir with a minimum of residual-oil saturation at the time of depletion. It is often used to mean the field production rate that will achieve maximum financial returns from operation of the reservoir. The two rate figures seldom coincide, however.

n: the ratio of the mobility of a driving fluid (water or a chemical solution at residual oil saturation to the mobility of the driven fluid (oil) at connate water saturation. The mobility ratio affects the sweep efficiency of an improved recovery project.

a comparison of the ability of a fluid to move through another fluid or to displace the fluid.