دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a permeable body of rock capable of yielding groundwater to wells and springs. 2. the part of a water drive reservoir that contains the water.

n: (1) water bearing strata. (2) aqueous section in water controlled reservoir.

a water containing formation that may or may not be directly connected to the hydrocarbon bearing zone. A connected aquifer may or may not offer pressure support to the pay.

n: 1. a surface representing the hydrodynamic pressure gradient of groundwater flowing through an aquifer. 2. the level to which unconfined flowing water would rise.

n: see surface pipe.

n: A large-diameter, relatively low-pressure pipe string set in shallow yet competent formations for several reasons. First, the surface casing protects fresh-water aquifers onshore. Second, the surface casing provides minimal pressure integrity, and thus en

the casing string that protects the fresh water supply. It is always cemented across the water zone and usually extends to surface.

n: the first string of casing (after the conductor pipe) that is set in a well. It varies in length from a few hundred to several thousand feet (metres). Some states require a minimum length to protect freshwater sands. Compare conductor pipe.

n: A large-diameter, relatively low-pressure pipe string set in shallow yet competent formations for several reasons. First, the surface casing protects fresh-water aquifers onshore. Second, the surface casing provides minimal pressure integrity, and thus en

n: A large-diameter, relatively low-pressure pipe string set in shallow yet competent formations for several reasons. First, the surface casing protects fresh-water aquifers onshore. Second, the surface casing provides minimal pressure integrity, and thus en

n: the efficiency with which water displaces oil or gas in a water drive oil or gas field. Water flowing in from the aquifer does not displace the oil or gas uniformly but channels past certain areas due to variations in porosity and permeability.

the percentage of original oil in place displaced from a formation by a flooding fluid.

n: the reservoir drive mechanism in which oil is produced by the expansion of the underlying water and rock, which forces the oil into the well bore. In general, there are two types of water drive: bottom-water drive, in which the oil is totally underlain by water;and edgewater drive, in which only a portion of the oil is in contact with the water.

a reservoir drive mechanism where an aquifer provides pressure support and pushes towards the low pressure area around the well, driving the oil ahead of it.