دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the adhesion of a thin film of a gas or liquid to the surface of a solid. Liquid hydrocarbons are recovered from natural gas by passing the gas through activated charcoal, silica gel, or other solids, which extract the heavier hydrocarbons. Steam treatment of the solid removes the adsorbed hydrocarbons, which are then collected and re-condensed. The adsorption process is also used to remove water vapour from air or natural gas. Compare absorption.

n: A surface phenomenon exhibited by a solid (adsorbent) to hold or concentrate gases, liquids or dissolved substances(adsorptive) upon its surface, due to adhesion.

the attraction and holding of a layer of a chemical on the wall of a formation. Usually held by ionic charge or wetting preference.

n: 1. a pipe connction around a valve or other control mechanism that is installed to permit passage of fluid through the line while adjustments or repairs are being made on the control. 2. a delivery of gas to a customer by means of a pipeline other than that customers traditional supplier. For example, delivery of gas to an end user directly off a transmission pipeline without moving the gas through the end users traditional local distribution company supplier.

corrosion acceleration by passage of a high velocity flow or impingement of solids. May remove the thin, protective oxide film that protects exposed metal surface.

n: a method for removing small concentrations of hydrogen sulphide from natural gas by passing the gas over a bed of wood shavings that have been impregnated with a form of iron oxide (iron sponge). The hydrogen sulphide reacts with the iron oxide, forming iron sulphide and water.

n: a kinds of method that eliminate the hydrogen sulfide of natrual gas.

n: see wire-wrapped screen. screw packer n: a packer in which the packing element is expanded by rotating the pipe. It is used when it is not desirable to put tubing weight on the packer. scrub v: to remove certain constituents of a gas by passing it through a scrubber in which the gas is intimately mixed with a suitable liquid that absorbs or washes out the constituent to be removed.

n: The serial casing with mesh,which be situated at the bottom of oil string.