دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a tool placed on a drill collar near the bit that is used, depending on where it is placed, either to maintain a particular hole angle or to change the angle by control- ling the location of the contact point between the hole and the collars. See packR:d-hole as- sembly. 2. a vessel in which hydrocarbon vapors are separated from liquids. 3. a fractionation system that reduces the vapor pressure so that the resulting liquid is less volatile.

n: A downhole tool which has minor interspace with borehole,usually be fixed on the drill string.

n: 1. a vertical arrangement of blowout prevention equipment. Also called preventer See blowout preventer. 2. the vertical chimney like installation that is the waste disposal system for unwanted vapor such as flue gases or tail-gas streams. See exhaust stack.

n: A group of pipe or other pipe lean on the pipe finger of derrick.

n: see total pressure. stake a well v: to locate precisely on the surface of the ground the point at which a well is to be drilled. After exploration techniques have revealed the possibility of a subsurface hydrocarbon-bearing formation, a certified and registered land surveyor drives a stake into the ground to mark the spot where the well is to be drilled.

a vertical pipe on the derrick used for routing injected fluid flow.

n: 1. a measuring instrument intended to define, to represent physically. or to reproduce the unit of measurement of a quantity (or a multiple or submultiple of that unit) to transmit it to other measuring instruments by comparison. See also primary standard, secondary standard, working standard. 2. a prescribed set of voluntary rules. conditions. or requirements concerned with the definition of terms;classification of component;delineation of procedures;specification of dimension;construction criteria;materials;performance;design;or operations;measurement of quality and quantity in describing materials, products, systems, services, or practices;or description of fit and measurement of size.

n: the accepted density of standard air varies between the US. British. and metric systems of measurement. The correct densities have been incorporated in the ASTM-IP Measurement Tables and IP 250/69.

n: a gas volume unit of measurement at a specified temperature and pressure. The temperature and pressure may be defined in the gas sales contract or by reference to other standards.

n: the root mean Square (rms) deviation of the observed values from the average. standard dress n: diving equipment consisting of brass diving helmet, breastplate, heavy dry suit, weighted boots, weighted belt, hose, compressor, and communications.