Gladys McCall geopressured reservoir analysis - June 1987

Journal Article · Thu Dec 01 00:00:00 EST 1988 · J. Energy Resour. Technol.; (United States)

DOI:https://doi.org/10.1115/1.3231391· OSTI ID:6159154

Riney, T D

The Gladys McCall geopressured reservoir consists of an interbedded sequence of relatively thick sands and thin shales. The lateral extent of the reservoir is not well defined, Gladys McCall Well No. 1 produced approximately 4.0 X 10/sup 6/ m/sup 3/ (25 X 10/sup 6/ barrels) of brine from Sand Zone No. 8 from October 7, 1983 through May 1987. Analysis of the flow data from the well has led to the development of a conceptual model of the reservoir, which depends on the cross-flow from sands overlying/underlying Sand Zone No. 8 for the observed pressure maintenance. The fluid source is remote from the well in the sense that the fluid from the neighboring sands must flow a long distance to find a vertical pathway around the intervening shale stringers in order to recharge Sand Zone No. 8. A reservoir simulation model based on the conceptual model provides an excellent match to the detailed downhole pressure buildup measurements made during the original Reservoir Limits Test and two subsequent short-term buildup tests. The model has also been employed to match the production history of the Gladys McCall No. 1 well and to predict future reservoir response. Nevertheless, the reservoir model employed is not unique and alternate models for pressure maintenance are also being investigated.

• Research Organization: S-Cubed, La Jolla, CA (US)
• OSTI ID: 6159154
• Journal Information: J. Energy Resour. Technol.; (United States), Vol. 110:4
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
OIL SANDS
RESERVOIR PRESSURE
OIL SHALES
BOREHOLES
DATA ANALYSIS
FLUID FLOW
GEOLOGIC MODELS
MAINTENANCE
MEASURING METHODS
SIMULATION
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CAVITIES
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
040500* - Oil Shales & Tar Sands- Properties & Composition
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