3D reservoir simulation of Ekofisk compaction drive

Journal Article · Tue Oct 01 00:00:00 EDT 1991 · Journal of Petroleum Technology; (United States)

OSTI ID:5679674

Sulak, R M; Thomas, L K; Boade, R R ^[1]

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1. Phillips Petroleum Co. (US)

In late 1984, the seafloor at the Ekofisk oil field in the Norwegian North Sea was discovered to have subsided by more than 10 ft as a result of production-induced reservoir compaction. Subsidence was not expected and its detection suggested that reservoir compaction was perhaps a more important mechanism for hydrocarbon production than previously assumed. This paper describes procedures developed to account for compaction drive in the 3D reservoir simulator that is used for the Ekofisk field. The procedures involve the incorporation of results from a subsidence model into the reservoir chalk as a function of porosity, rock type, reservoir pressure, and position in the reservoir.

• OSTI ID: 5679674
• Journal Information: Journal of Petroleum Technology; (United States), Journal Name: Journal of Petroleum Technology; (United States) Vol. 43:10; ISSN JPTJA; ISSN 0022-3522
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
020900 -- Petroleum-- Environmental Aspects
58 GEOSCIENCES
580000 -- Geosciences
ANALOG SYSTEMS
ATLANTIC OCEAN
CARBONATE ROCKS
COMPACTING
DEVELOPED COUNTRIES
EUROPE
FUNCTIONAL MODELS
GEOLOGIC DEPOSITS
GEOLOGIC MODELS
GROUND SUBSIDENCE
LIMESTONE
MINERAL RESOURCES
NORTH SEA
NORWAY
OFFSHORE OPERATIONS
OIL FIELDS
PETROLEUM DEPOSITS
POROSITY
RESERVES
RESERVOIR PRESSURE
RESOURCES
ROCKS
SCANDINAVIA
SEAS
SEDIMENTARY ROCKS
SIMULATORS
SURFACE WATERS