DHIs validation for Amauligak oil field, Canadian Beaufort Sea

Conference · Wed Mar 01 04:00:00 EST 1989 · AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)

OSTI ID:6086207

Enacheschu, M E; Demers, J H.L.

The giant Amauligak field is a three-way fault bounded block situated in the eastern area of the Beaufort Sea known as the growth fault sector. The Amauligak structure was triggered by a major synsedimentary fault trending northeast-southwest. Interbedded sands and shales of the Oligocene Kugmallit Sequence (Pullen delta front) form the core of the structure. A strong amplitude anomaly was recognized on older seismic data in the crestal area of the structure at the top of the Kugmallit Sequence-Pullen unconformity level. Recent (1986) exploration three-dimensional data reveal diverse DHIs including: bright spots, phase change, shadow zone and flat spot, all associated with a large gas cap. Interpretation of seismic data and interactive seismic modeling suggest that a combination of structural, stratigraphic, and hydrodynamic factors are responsible for the aspect and distribution of DHIs at the Amauligak field. Although the gas/liquid contact is seismically mappable over the field, the nature of the downdip liquid remained unknown. To overcome this ambiguity, highly deviated wells were drilled to investigate the reservoir above and below the edge of the amplitude anomaly.

• Research Organization: Husky Oil Operations Ltd., Calgary, Alberta (Canada)
• OSTI ID: 6086207
• Report Number(s): CONF-890404-
• Conference Information: Journal Name: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States) Journal Volume: 73:3
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
ARCTIC OCEAN
BEAUFORT SEA
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOLOGY
GEOPHYSICAL SURVEYS
MAPPING
MINERAL RESOURCES
OIL FIELDS
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
SEAS
SEISMIC SURVEYS
SOURCE ROCKS
STRATIGRAPHY
SURFACE WATERS
SURVEYS