Simonette Beaverhill Lake oil pool: Discovery history, reservoir characterization and depletion strategy

Conference · Mon Jan 01 04:00:00 EST 1996 · AAPG Bulletin

OSTI ID:6590213

Ollenberger, L R ^[1]; Cortis, T L ^[2]

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1. Chevron Canada Resources, Calgary, Alberta (Canada)
2. Shell Canada Limited, Calgary, Alberta (Canada)

A significant light oil discovery was made in reefal carbonates of the Middle-Upper Devonian Swan Hills Formation of the Beaverhill Lake Group in west-central Alberta in September, 1993. The discovery well, Chevron Simonette 7-20-64-26W5, encountered a dolomitized Swan Hills reef margin with 28 meters of net oil pay and was capable of producing 750 ml (4700 barrels) of oil per day. A total of eighteen wells have been drilled into the pool to date. The accumulation at Simonette is divided into two pools (Beaverhill Lake A and B) by a north-south trending fault. The pools are the twelfth and fourteenth largest Swan Hills oil pools discovered to date and the largest Swan Hills oil pools discovered since 1962. The pools have an average net pay of 13.5 meters, with average porosity of approximately 9% and average water saturation of 7%. Porosity is present within both dolomite and limestone and the distribution of the reservoir is controlled by depositional facies. The density of the oil is 808 kg/m[sup 3] (43[degrees] API) and the gas/oil ratio is 325 m[sup 3]/m[sup 3]. The solution gas has an H[sub 2]S content of 1.5%. Initial reservoir studies indicate that 48% of the oil in place in the A Pool can be recovered with a hydrocarbon miscible flood, which was initiated in March, 1995. A water flood, with anticipated recovery of 41% of the oil in place, will be initiated in the B Pool in early 1996.

• OSTI ID: 6590213
• Report Number(s): CONF-960527--
• Conference Information: Journal Name: AAPG Bulletin Journal Volume: 5
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
020300 -- Petroleum-- Drilling & Production
ALBERTA
CANADA
DEVELOPED COUNTRIES
ENERGY SOURCES
ENGINEERING
EXPLORATION
FLUID INJECTION
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
MINERAL RESOURCES
NORTH AMERICA
OIL FIELDS
PETROLEUM
PETROLEUM DEPOSITS
POROSITY
RESERVOIR ENGINEERING
RESERVOIR ROCK
RESOURCES
SEDIMENTARY BASINS
WATERFLOODING