دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a short tube with a calibrated constriction that is used in instruments or devices such as jet hoppers. It was developed to take advantage of the principle that a fluid flowing through a constriction has increased velocity and reduced pressure.

n: a flow meter used to determine the rate of flow and employing a venturi tube as the primary element for creating differential pressures in flowing gases or liquids. Compare orifice meter.

tool surface operational check.

n: an electrical measuring instrument that verifies the presence or absence of current or emf in a circuit. A compass needle and a dashboard ammeter are verification indicators.

n: The typical vermiculite is two to one type tri-octahedral banding silicate,which can as the the block agent of gaping leakage zone.

n: A kind of apparatus that be used to measure drill fluid and the oiliness of treating chamical.

n: an imaginary line at right angles to the plane of the horizon. adj: of a wellbore, straight, not deviated.

vertical extent of a depth measurement.

n: The projecting length of well depth on the vertical line is vertical depth ;measured depth is the true length of a well.