AN INTEGRATED PETROLEUM RESERVOIR
MANAGEMENT (MDT) OF A MATURE OILFIELD
PRIMER The current low oil price
environment has stagnated oil field
developments; Companies incentivized
to generate value by optimizing
extraction from existing, mature
assets. Integrated Petroleum Reservoir
Management vital to this endeavor
SET CLEAR
OBJECTIVES
RESERVOIR
CHARACTERIZATION
and EVALUATION
Selveindran, A.; Simone, A; Chen, J.; Joslin, B.; Narayan, R.; Rendon, C.; Sharma, P.
Dept. of Petroleum Engineering
2(a).RESERVOIR CHARACTERIZATION
Porosity Cut-off: 4%
Permeability Cut-off 0.04mD
SIMULATION MODEL
2(b).RESERVOIR EVALUATION
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2
3.WATERFLOOD ASSESSMENT
SENSTIVITIES AND
ECONOMIC
EVALUATION
4.HIGH RESOLUTION NUMERICAL SIMULATION (3∅, 3D)
Reopen upper zone/reperforate
Convert to Injector
once residual
saturation
reached/water-cut
limit reached
Waterflood pattern
tightening in poorer
porosity area
So1000 ft
1.OBJECTIVES Evaluate a
mature waterflooded oil-field and
generate field re-development
options in a short time-frame (<2
months)
WATERFLOOD
PERFORMANCE
ASSESSMENT
KEY RECOMMENDATIONS How to add value and maximize
oil recovery? (in order of cheapest to most expensive)
1. Infill opportunities with recompletions
2. Waterflood pattern tightening
3. Complete wells with sand frac. (>+25% IP)
4. Conduct pilot EOR (CO2 – WAG) with lab work
5. CO2 injection North-side of the field
5.ECONOMIC EVALUATION
Oil production DRIVEN by geology
Larger circles = higher cumulative
production
Waterflood performance
affected by geology
WATERFLOOD ABC PLOTS
Key economic
infill drilling
locations
Waterflood
optimization
Potential CO2
flood location
Field oil saturation map @ 2016
1
2
1
2
Challenges
1. High water production
2. Sub-optimal well placement
3. High residual (“left-behind”) oil
Good flood performance
Poor flood
performance
KEY LEARNINGS
• How a MDT approach
creates value
• How to work as a team
with professionals from
various backgrounds
> College of Engineering
> College of Geoscience
> School of Business
APPROVED RESOURCES
DISCOVERED RESOURCES
MULTI-DISCIPLINARY TEAM (MDT) WORKFLOW
Cumulative oil production over porosity map
High productivity
Avg. productivity
WaterOil
Oil P
roducti
on r
ati
o
Water Production ratio
OIL
(B
ILLI
ON
BB
LS)
0
5
10
15
20
25
2000 2004 2008 2012 2016
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