دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. the point at which, in terms of temperature and pressure, a fluid cannot be distinguished as being either a gas or a liquid, i.e., the point at which die physical properties of a liquid and a gas are identical. 2. one of the places along die length of milling line at which strain is exerted as pipe is run into or pulled out of the hole.

n: see critical point, defn. 1.

n: a round cluster of hydrocarbon chains formed when the amount of surfactant in an aqueous solution reaches a critical point. The micelles are able to surround and dissolve droplets of water or oil. forming an emulsion.

an association or grouping of molecules in suspension.

n: a pin that is inserted at a critical point in a mechanism and designed to shear when subjected to excess stress. The shear pin is usually easy to replace.

a pin in a tool (brass, steel or aluminum) that is designed to shear or break at a certain pressure that enables a tool function.