دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a coral island consisting of a reef surrounding a lagoon.

n: the depositional environments associated with a shallow lagoon shoreward from a coastal barrier island. These environments are highly variable and may include tidal channels, salt marshes, shell reefs, and mangrove swamps, among others.

n: a reef or mound built by small organisms and their remains, such as coral, plankton, and oysters. Originally a waveresistant coral structure served as an anchor for calcareous debris that formed limestone. It was tectonically submerged, or the sea level rose faster than the corals could build it, and it was eventually buried beneath marine shales. A bioherm is often porous enough to hold large accumulations of hydrocarbons, especially if it has been dolomitized. A bioherm is a stratigraphic trap.

n: see reef.

n: an anticline composed of sedimentary deposits atop a reef or atoll, along whose flanks greater thicknesses of sediments have been deposited and compacted than atop the reef itself. Also called compaction anticline.

n: congressional act that provides for the development of a National Artificial Reef Plan to promote and facilitate responsible and effective efforts to establish artificial reefs.

a conical shaped reef-type deposit, usually with good permeability and pososity.

n: 1. a type of reservoir trap composed of rock (usually limestone) formed from the shells or skeletons of marine animals. 2. a burled coral or other reef from which hydrocarbons may be withdrawn.

coral reef built deposits. Among the highest permeability reservoirs because of connected voids if there has not been extensive chemical modification.

n: a program developed under the National Fishing Enhancement Act that led to the state sponsorship of the conversion of rigs to artificial reefs in the Gulf of Mexico.