دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

gravity n: specific gravity as measured by the Baume scale. Two arbitrary scales are employed: one for liquids lighter than water and the other for liquids heavier than water. This scale is also used to describe the density of acid solutions.

n: either of two arbitrary scales-one for liquids lighter than water and the other for liquids heavier than water-that indicates specific gravity in degrees. bbl abbr: barrel. bbV acre-ft abbr: barrels per acre-foot. bbVd abbr: barrels per day. Bcf abbr: billion cubic feet. Bcf/d abbr: billion cubic feet per day. b/d abbr: barrels per day;often used in drilling reports. BID abbr: barrels per day. BOC abbr: bottom dead centre

a sintered aluminum based proppant with very high strength, 3.2 g/cc density and high abrasion characteristics.

characteristic markings (ridges, tears, risers, etc.) on fracture surfaces after fatigue crack of fracture propagation (also known as clamshell marks, conchoidal marks and arrest marks).

an isotope tracer in a bead with the same density of the flowing fluid that is used to track fluid flow rates and therefore fluid entry and exit points along the wellbore.

n: (1) the extreme width (breadth) of the hull of a ship or mobile offshore drilling rig. (2) a walking beam. See walking beam.

n: the weights on a beam pumping unit installed on the end of the walking beam, which is opposite the end over the well. The counterbalance offsets, or balances, the weight of sucker rods and other downhole equipment installed in the well.

an artificial lift system, common to low pressure, lower rate oil wells, with a plunger type bottom hole pump operated from the surface by a rod string.

n: a machine designed specifically for sucker rod pumping. An engine or motor (prime mover) is mounted on the unit to power a rotating crank. The crank moves a horizontal member (walking beam) up and down to produce reciprocating motion. This reciprocating motion operates the pump. Compare pump jack.

n: a well whose fluid is being lifted by rods and pump actuated by a beam pumping unit.