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

n: rock layers folded in the shape of an arch. Anticlines sometimes trap oil and gas. Compare syncline.

n: A configuration of folded and stratified rock layers in the shape of an arch. Often associated with a trap.

a convex-upward formation of rock layers (a fold with the strata sloping down on the sides from a common crest. In association with a sealing rock, an anticline may form a trap for hydrocarbons. Anticlines may be faulted or unfaulted. The majority of the

n: 1. a body of coarse, poorly sorted sediments formed by the coalescence of alluvial or detrital fans along the flanks of a mountain range. 2. a similar body of turbidite sediments formed by the coalescence of submarine debris fans along the base of the continental slope.

a rheological model used to describe flow in some fluids. Bingham fluids have a linear shear stress, shear-rate behavior after an initial shear-stress boundary has been crossed. Plastic viscosity or PV is the slope of the line. Yield Point is the threshol

n: the transition zone between the continental slope and the oceanic abyss.

n: a zone, adjacent ot a continent, that extends from the lower waterline to the continental slope, the point at which the seafloor begins to slope off steeply into the oceanic abyss.

the shallow area out from shore to a water depth of about 450’.

n: a zone of steep, variable topography forming a transition from the continental shelf edge to the ocean basin.

the slope of the production rate vs. cumulative time or volume measurement. The decline of a well predicts how fast it is being depleted.

n: 1. a European term for the depth of liquid in a storage tank. 2. formation dip. See formation dip. iMage. ullage.

n: the angle at which the bed of formation slopes away from the horizon

the angle that the structural surface or bedding plane or fault surface makes with the horizontal. Measured perpendicular to the strike and in the vertical plane.