دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: inside blowout preventer (so named by the company that invented it- TX Iron Works).

tubing kill valve.

abbr: threshold limit value.

threshold limit value.

n: the range of variation permitted in maintaining a specific dimension in machining a part. For example, a shaft measurement could be 2.000 inches +0.001 (50 millimetres +0.025). This means that any measurement from 1.999 inches to 2.001 inches (49.975 millimetres to 50.025 millimetres) would be acceptable.

an aromatic (cyclic) 6-carbon ring compound with 7 carbons and 3 triple bonds. A very powerful solvent for oil, tar and asphaltenes.

three dimensional display of seismic velocity in a well or area.

n: 1. (nautical) a volume measure equal to 100 square feet applied to mobile offshore drilling rigs. 2. a measure of weight equal to 2,000 pounds. 3. (metric) a measure of weight equal to 1,000 kilograms. Usually spelled tonne."

n pi: very hard and brittle pieces of serrated steel that are installed in the tongs and that grip or bite into the tool joint of drill pipe when the tongs are latched onto the pipe.

n: The toothing hard and brittle bloom that have been thermal treated,which be fixed in the tong.

n pi: the large wrenches used for turning when making up or breaking out drill pipe, casing, tubing, or other pipe;variously called casing tongs, pipe tongs, and so forth, according to the specific use. Power tongs or power wrenches are pneumatically or hydraulically operated tools that serve to spin the pipe up tight and, in some instances, to apply the final makeup torque.

a wrench, hand or power, suspended above the rig floor to make or break pipe connections.

n: a hydraulic device connected between an engine and a mechanical load such as a compound. Torque converters are characterized by an ability to increase output torque as the load causes a reduction in speed. Torque converters are used on mechanical rigs that have compounds.

n: It be setted between the engine and drive mechanism,which can increase the torque when velocity decline caused by loading increasing.