Arab-D carbonate formation

E777207

The Arab-D carbonate formation is a highly productive Late Jurassic limestone and dolomite reservoir rock that hosts much of the oil in Saudi Arabia’s giant Ghawar field and other major Middle Eastern petroleum accumulations.

All labels observed (3)

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Statements (42)

Predicate Object
instanceOf carbonate reservoir rock
geologic formation
petroleum reservoir
depositionalEnvironment shallow-marine carbonate platform
shoal and grainstone complexes
diageneticFeatures cementation
dissolution-enhanced porosity
dolomitization
discoveryContext developed as a major reservoir during mid-20th century exploration in Saudi Arabia
economicImportance hosts much of the oil in the Ghawar field
one of the most productive oil reservoirs in the world
geologicAge Late Jurassic
geologicPeriod Jurassic
hydrocarbonSystemRole principal reservoir in the Jurassic petroleum system of eastern Saudi Arabia
hydrocarbonType light crude oil
lithology dolomite
limestone
locatedIn Arabian Basin
Middle East
Saudi Arabia
memberOf Arab carbonate-evaporite sequence
namingConvention designated as the D member of the Arab Formation
operatorAssociation Saudi Aramco
overlainBy Arab evaporite units
partOf Arab Formation
permeabilityCharacteristic high permeability in grainstone and dolomitized intervals
porosityType fracture porosity
intergranular porosity
vuggy porosity
primaryProductionMechanism solution-gas drive and waterflooding in Ghawar field
regionalCorrelation equivalent to other Late Jurassic Arab reservoirs across the Arabian Plate
reservoirFor associated gas
conventional oil
sealRock overlying anhydrite and evaporites of the Arab Formation
stratigraphicPosition upper part of the Jurassic succession in eastern Saudi Arabia
stratigraphicUnitOf Abqaiq oil field
Ghawar oil field
Shaybah oil field
other major Middle Eastern petroleum accumulations
structuralSetting gentle regional anticlines of the Ghawar trend
thicknessCharacteristic substantial net pay thickness in Ghawar field
underlainBy Hanifa Formation

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ghawar oil field reservoirFormation Arab-D carbonate formation
Arab-D carbonate formation memberOf Arab carbonate-evaporite sequence
linked to: Arab-D carbonate formation
Shedgum geologicalFormation Arab-D carbonate reservoir
linked to: Arab-D carbonate formation