دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the prevent sticking joint that connected the top of fishing tool.

annular safety valve.

n: (RSPA) a DOT agency that oversees the Office of Pipeline Safety, intermodal containers, highway portable tanks, railroad cars, and anything used in interstate or international commerce not regulated by the coast guard. Under OPA, RSPA has authority over onshore oil and hazardous materials pipelines that are used in interstate commerce. Address: 400 7th Street SW;Washington, DC 20590;(202) 366-4433.

n: organisation that establishes safety practices for several industries. Its publications are Professional Safety and Society Update. Address: 1800 East Oakton;Des Plaines, IL 60018-2187;(847) 699-2929.

a downhole safety valve that shuts off the annulus.

n: (1) in designing or ordering hoisting (lifting) equipment, the maximum weight that the equipment will be able to safely lift. (2) on diesel electric rigs, the maximum amount of electric power that the generators will have to produce to adequately power the rig.

abbr: American Society of Safety Engineers.

annular safety valve.

n: (ADS) a oneperson atmospheric suit rated to depths of 2,300 feet (701 metres). Advantages include allowing the operator to work in a safe environment for debris salvage or recovery operations.

n: a braking mechanism on the drawworks, supplemental to the mechanical brake, that permits the lowering of heavy hook loads safely at retarded rates without incurring appreciable brake maintenance. There are two types of auxiliary brake-the hydrodynamic and the electrodynamic. In both types, work is converted into heat, which is dissipated through liquid cooling systems. See electrodynamic brake, hydrodynamic brake.

n: The additional device of mechanical brake.Decreasing the maintenance of brake system and making landing heavy loading safe. There are two kinds of forms: one is hydrodynamic, the other is dynamic.