دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the cleanup, removal of contaminated materials, and removal of hazardous substances that remain after an emergency response operation is terminated;that portion of the emergency response perfonned after the immediate threat of a release has been stabilized or eliminated and cleanup of the site has begun.

n: a floating offshore drilling unit that has pontoons and columns that, when flooded. cause the unit to submerge to a predetermined depth. Living quarters, storage space, and so forth are assembled on the deck. Semisutxnersible rigs are self-propelled or towed to a drilling site and anchored or dynamically positioned over the site, or both. In shallow water, some semi-submersibles can be ballasted to rest on the seabed. Semi-submersibles ale more stable than drill ships and ship-shaped barges and are used extensively to drill wildcat wells in rough waters such as the North Sea. Two types of semi-submersible rigs ale the bottle- type and the column-stabilized. See floating offshore drilling rig.

an emulsion, usually breakable only with solvent that is stabilized by silt accumulation at the surface of the bubbles or droplets.

n: 1. a tarlike substance that is formed when oil oxidizes. 2. a highly viscous mixture of oil, water, sediment, and residue.

n: The silt and warp deposited in the tank bottom.




a very viscous, usually solids stabilized emulsion. Often triggered by ferric iron and an asphaltenic oil after an acid job.

adj: said of a flowing well when its rate of production through a given size of choke remains constant, or, in the case of a pumping well, when the fluid column within the well remains constant in height.

n: the bottomhole flowing pressure that has been allowed time to reach a steady state.

n: the bottomhole shut-in pressure that has been allowed time to reach a steady state.

n: condensate that has been stabilized to a definite vapor pressure in a fractionation system.

the bottom hole pressure when the well has been shut-in and the well stabilized.