The planning of a large-scale miscible flood at Prudhoe Bay
This paper describes the technical considerations that set the major design parameters for the Prudhoe Bay Miscible Gas Project (PBMGP). This project was planned as a large hydrocarbon miscible flood. The basic project concept is to manufacture a miscible injectant from the field separator off-gas (WAG) mode. The miscible gas supply will vary, generally increasing with time. Over the first 10 years of the project, an average supply of 200 MMscf/D (5.66X10/sup 6/ m/sup 3//d) is anticipated. The gas processing plant and the factors affecting miscible gas supply are described. The EOR project area was selected by a screening process. This led to a project area definition encompassing 4.9X10/sup 9/ RB (779X10/sup 6/ m/sup 3/) PV containing 2.2X10/sup 9/ STB (350X10/sup 6/ m/sup 3/)original oil in place (OOIP). The planned cumulative volume of miscible gas injected will be 10% PV. Reservoir studies indicate an incremental oil recovery by miscible flooding of some 5.2% OOIP or 115X10/sup 6/ STB (18.3x10/sup 6/ m/sup 3/) Aspects of these reservoir studies are described. The Sadlerochit reservoir is both the ultimate source of the miscible solvent and the target reservoir. This introduces several reservoir/facility interaction effects. The planning of a major EOR project in the Arctic has also involved technical considerations not routinely encountered in conventional oilfield projects. Both aspects are discussed in the paper.
- Research Organization:
- Sohio Petroleum Co., San Rafael, CA
- OSTI ID:
- 7148533
- Journal Information:
- J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 38:11; ISSN JPTJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ARCTIC OCEAN
BAYS
BEAUFORT SEA
COMPRESSION
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GASEOUS WASTES
GEOLOGIC DEPOSITS
INDUSTRIAL PLANTS
MINERAL RESOURCES
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS PROCESSING PLANTS
OFF-GAS SYSTEMS
OIL FIELDS
OIL WELLS
OIL YIELDS
PETROLEUM
PETROLEUM DEPOSITS
PLANNING
PRUDHOE BAY
RECOVERY
RESOURCES
SEAS
SEPARATION EQUIPMENT
STIMULATION
SURFACE WATERS
TIME DEPENDENCE
WASTES
WATERFLOODING
WELL STIMULATION
WELLS
YIELDS