دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a large, sloping sedimentary deposit at the mouth of a canyon, laid down by intermittently flowing water, especially in arid climates, and composed of gravel and sand. The deposit tends to be coarse and unworked, with angular, poorly sorted grains in thin, overlapping sheets. A line of fans may eventually coalesce into an apron that grows broader and higher as the slopes above are eroded away.

land counterpart of a river delta. Characteristic of sediments that have been transported by a fast moving stream then dropped out of the flow as the stream velocity drops as it spreads out. Typical of zones of heavy water runoff such as found at the base

adj: of or pertaining to an instrument that measures a continuous variable that is proportional to another variable over a given range. For example, temperature can be represented or measured as voltage, its analog.

n: the product of volts and amperes in an AC circuit when voltage and current are measured separately. If voltage and current are not in phase, apparent power is greater than true power.

n: the average of all the instantaneous values of current or voltage in one-half a cycle of AC electricity;equal to 0.636 times the maximum value.

n: voltage induced in the armature of a motor by the magnetic field in which it is turning. Also called counter emf. See electromotive force.

an elongated lens of sand formed during distribution of sediment in a delta.

the simultaneous flow of two immiscible fluids.

n: the part of a marine delta that lies farthest from shore. It consists of silt and clay extending well out from the toe of the steep delta face. Such beds grow slowly, out of reach of most of the effects of river current and wave action.

n: The voltage when emulsion begins to demulsify under the certain condition. A target used to measure stability of emulsion.

n: an energy-producing process involving the simultaneous generation of thermal and electrical energy from a single primary heat source.

production of electrical or mechanical energy and heat or other power.