دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: any shipboard tank or tanker compartment normally used for carrying saltwater ballast. When these compartments or tanks are not connected with the cargo system, they are called segregated ballast tanks or systems.

n: an interior wall that subdivides a ship or a mobile offshore drilling rig into compartments.

n: the empty space between two bulkheads that separates two adjacent compartments. It is designed to isolate the two compartments from each other, thereby preventing the liquid contents of one compartment from entering the other in the event of the failure of the bulkhead of one to retain its tightness. In oil tankers, cargo spaces are always isolated from the rest of the ship by cofferdams fitted at both ends of the tank body.

separate compartments or smaller reservoirs in a larger, common reservoir that may not be in communication.

segregated flow units of a main reservoir that have a poor flow connection or no flow connection to the main reservoir.

n: a chamber in which excessive pressure can gradually be reduced to atmospheric pressure. It is especially equipped to help divers complete their decompression schedules and may also be used to treat diving casualties. One or more of the compartments may be installed on the deck of a work boat or barge.

n: (remaining on board)estimated material remaining on board a vessel after a discharge. Includes residue or sediment clingage, which builds up on the interior surfaces of the vessels cargo compartments.

n: (remaining on board) the measurable material remaining on board a vessel after a discharge. Includes measurable sludge, sediment, oil, and water or oil residue lying on the bottom of the vessels cargo compartments and in associated lines and pumps.

n: a mixture of individual samples from several compartments of a ship or barge, each of which contains the same grade of petroleum material. The mixture is blended in proportion to the volume of material in each compartment.

n pi: the compartments on a floating offshore drilling rig that are filled with water to offset the rig.s tendency to roll.