دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a sediment deposited by wind.

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: a deviation from the norm. In geology the term indicates an abnormality such as a fault or dome in a sedimentary bed.

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.

v: to reverse the flow of fluid from a water injection well to get rid of sediment that has clogged the wellbore.

v: The verb form of backwashing.

n: oil that contains a sufficient amount of sediment and water to make it unaccetable to a pipeline or other oil transportation system.

a sediment with alternating layers of chert and iron rich minerals.

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

n: igneous or metamorphic rock, which seldom contains petroleum. Ordinarily, it lies below sedimentary rock. When it is encountered in drilling, the well is usually abandoned.