Burbank Oil Field
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Transcript of Burbank Oil Field
Burbank, Osage County, Oklahoma
I. Background of the Field II. Primary Recovery: Solution-Gas Drive
III. Secondary Recovery: WaterfloodIV. Enhance Oil Recovery: MIcellar Polymer Flooding
Location of Burbank Field on the Map
The burbank field is located principally in Osage County, but with a small extension into Kay
County
Stage 3
Production while saturated and the free gas is mobile and the producing gas-oil ratio (GOR) is increasing
A. Reservoir Geology Considerations
• understanding the reservoir rocks • the diagenetic history of the reservoir rocks must be
ascertained• the structure and faulting of the reservoir must be
determined • the water/oil/rock characteristics need to be
understood
B. Waterflooding Considerations
• Oil properties • viscosity and density at reservoir
conditions• the mobility of a fluid is defined as its
endpoint relative permeability divided by its viscosity
C. Rationale for Waterflooding• The waterflood performance of this stratified reservoir can
prove reasonably accurate. • Permeability values in this reservoir range from less than 0.1
md to nearly 3 darcys and 90 percent of the permeability capacity is contained in approximately 26 percent of the reservoir volume.
• Nearly 70 percent of the recovery can be achieved at water-cut values greater than 95 percent.
E. Waterflood Production Facilities• 250-600 psia• Equipped either with staged centrifugal pumps or
multistage pot turbine pump• Water treatment- sodium hexametaphospate
THE OIL PRODUCTION WILL BE GATHERED AND MONITORED AT SEPARATE FACILITIES. THEIR LOCATIONS WILL BE EQUIPPED WITH LACT UNITS AND CONVENTIONAL TANK BATTERIES.
The high productivity indices of most of the
producing wells have permitted wide application of
large-volume, submergible, multi-stage centrifugal
pumps. Individual producing well potentials of 3,000 to
4,000 BFPD are not uncommon and several will be
operated in the 5,000 to 7,000 BFPD range.
OIL RECOVERY
• Ultimate primary and secondary will be 302 bbl/acre-ft which is approximately 40 percent of the OSTOIP
A. Screening Criteria for Micellar Polymer Flooding
• API Gravity >20o
• Viscosity <35cp• Composed of light and/or intermediate oils• Oil Saturation >35%• Net Thickness is no critical• Average Permeability of >10md• Depth of >9000ft• Temperature >80oF
C. Surfactant Design
The proposed surfactant-polymer project will
cover approximately 90 acres, and would
comprise of inverted five-spot patterns of
approximately ten acres each.
Major Concerns and Solutions:
1. High salinity and hardness of the formation
water
2. Fractures
3. Oil-wet nature of rocks