دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

slugging a chemical such as a biocide or a corrosion inhibitor in high concentration to accomplish either placement or super concentrated treating.

n: slang. See flow by heads.

flowing slugs of material.

a device in the line filled with gas that may reduce the surges of pressure pulsation or flow slugging.

n: 1.The predominant flow geometry reflected in a pressure-transient response that is most easily recognized in the log-log presentation of the pressure-change derivative. The most easily recognized flow regime is radial flow, which produces a constant or fl

flow condition (e.g., mist, slug, churn, etc.) of a multiphase process stream.

the flow of slugs of fluids (unstable behavior).

n: a method of improved oil recovery in which chemicals dissolved in water are pumped into a reservoir through injection wells to mobilise oil left behind after primary or secondary recovery and to move it toward production wells. The chemical solution includes surfactants or surfactant-forming chemicals that reduce the interfacial and capillary forces between oil and water. releasing the oil and carrying it out of the pores where it has been trapped. The solution may also contain cosurfactants to match the viscosity of the solution to that of the oil to stabilise the solution and to prevent its adsorption by reservoir rock. An electrolyte is often added to aid in adjusting viscosity. Injection of the chemical solution is followed by a slug of water thickened with a polymer. which pushes the released oil through the reservoir. decreases the effective permeability of established channels so that new channels are opened. and serves as a mobility buffer between the chemical solution and the final injection of water.

n: a large, high-pressure reciprocating pump used to circulate the mud on a drilling rig. A typical mud pump is a single- or double-acting, two- or threecylinder piston pump whose pistons travel in replaceable liners and are driven by a crankshaft actuated by an engine or a motor. Also called a slush pump.

n: a large reciprocating pump used to circulate the drilling fluid down the well.both duplex and triplex pumps are used with replaceable liners. mud pumps are also called slug pumps

primary mud circulation pumps on the rig.

a piece of the copper liner that forms a cylindrical slug.