دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a disklike plate of anhydrite, gypsum, limestone, or sulphur overlying most salt domes in the Gulf Coast region. 2. impermeable rock overlying an oil or gas reservoir that tends to prevent migration of oil or gas out of the reservoir.

n: an instrument used to detect and measure minute differences in the earths gravitational pull at different locations to obtain data about subsurface formations.

a device that measures the local gravitational pull. Gravimeters are useful for determining small changes in the gravity. Very useful for detecting salt domes.

n: (RCRA) placement in or on the land;placement in a landfill, surface impoundment, waste pile, injection well, land treatment facility, salt dome formation, salt bed formation, underground mine or cave. or in a concrete vault or bunker intended for disposal purposes.

n: a dome that is caused by an intrusion of rock salt into overlying sediments. A piercement salt dome is one that has been pushed up so that it penetrates the overlying sediments, leaving them truncated. The formations above the salt plug are usually arched so that they dip in all directions away from the center of the dome, thus frequently forming traps for petroleum accumulations.

n: an anticlinal structure caused by an intrusion of rock salt into overlying sediments.this structure is often associated with traps for petroleum accumlations.

a usually large movement or intrusion of salt that gradually flows through the rock. Can create reservoir traps and can create casing collapse problems.

n: salt domes, depleted gas fields, or other suitable underground formations located in a companys major market areas into which gas is injected during low-demand summer months and from which it is withdrawn during highdemand winter months. May be 20 to 30 feet (6 to 9 metres) thick and can cover many square miles.