wellington ks co2 eor project monitoring co2 · pdf filewellington ks co2 eor project...
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Wellington KS CO2 EOR Project Monitoring CO2
• August 5, 2016
• Dana G. Wreath • Vice President Engineering • Berexco LLC – a private oil and gas company
based in Wichita KS • Operator of Wellington Field in southern KS
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DOE Funded CO2 Research
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DOE-NETL Contract #FE0006821
L. Watney (Joint PI), J. Rush (Joint PI), T. Bidgoli, J. Doveton, E. Holubnyak, M. Fazelalavi, R. Miller, D. Newell, J. Hollenbach (static & dynamic modeling, well test analysis, high-resolution seismic, passive seismic, accelerometers, geomechanical analysis, project management)
Tom Daley, Barry Freifeld (CASSM, U-Tube, cross well seismic)
Jennifer Roberts, Leigh Stearns (cGPS), Mike Taylor (InSAR), George Tsoflias (passive and active seismic)
Brian Dressel, DOE Project Manager
Dana Wreath & Adam Beren (field operator and operations, repeat 3D multicomponent seismic)
T. Birdie (Class VI permitting, monitoring, synthesis, reporting, closure)
CO2 supply
seismometers
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Wellington Field
Top Mississippian Structure, 10 ft C.I.
6 mi (10 km)
Wellington Field Site of Small Scale Field Test
20 Million Barrel Oil Field above Arbuckle Group
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Kansas Geological Survey Website http://www.kgs.ku.edu/PRS/Ozark/index.html
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CO2-EOR Technology & Carbon Management Research in Kansas
• Utilize oil and gas field Infrastructure • Utilize comparable approaches to characterization and simulation of oil and reservoirs • Evaluated sites for commercial scale carbon storage sites in aquifers beneath existing oil
fields • Conduct small scale CO2-EOR injection at Wellington Field, Sumner County Kansas • KU & partners have performed extensive research on: -monitoring -verification -accounting of the CO2 over the long term
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Geologic Carbon Utilization & Storage The 2015 United States Carbon Utilization and Storage Atlas – Fourth Edition (Atlas IV) DOE-NETL
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Wellington Project Current Status
• CO2 EOR Project is the first phase at 3600’ depth, then deep saline injection to follow (USEPA Class 6) at 5100’ depth.
• CO2 EOR injection began Jan 2016 and was completed June 22, 2016.
• EOR recovery, monitoring and CO2 mass balance measurement currently ongoing.
• USEPA Class 6 Injection Permit pending for saline injection phase. Timing?
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CO2 Utilization in Enhanced Oil Recovery (EOR)
CO2 mixes with oil and CO2 is
recycled
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Mississippian Reservoir
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Pilot CO2-EOR well drilled in 2015 and injection began in January 2016
Mississippian dolomite reservoir in Wellington Field Sumner County, Kansas
Berexco LLC Wellington KGS #2-32 2680'FSL & 709'FEL, Sec 32, T 31S, R 1W Sumner County, Kansas
Drilled in March 2015
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Wellington CO2 Project
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Wellington CO2 Monitoring
• CO2 Flowmeter at injector wellhead. • Temperature sensor at injector wellhead • Water Flowmeter at wellhead • CO2 Flowmeters at producing wells • CO2 Flowmeter at tank battery
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Wellington Automation System
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Liquid CO2 Injection Meter Display
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CO2 Properties
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CO2 Injection
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Lessons Learned Measuring Liquid CO2 Injection Volume
• Temperature Matters!! • Daily volume of liquid CO2 trucked in
averaged 900 bbl, but wellhead flowmeter was reading 1400 bbl per day.
• CO2 density at -14F is different than -5F. • Berexco installed temperature sensors tied to
SPOC controller to record temp continuously. • Reccomendation: Measure gas volume at low
pressure in gas phase. Its more reliable.
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CO2 Produced Gas Measurement
• Cameron MC-III EXP Flow Measurement • Installed at wellhead vent, or 2 phase
separator at well. • Separators needed to stop liquids flowing up
annulus making a mess as gas volumes increase.
• CO2 Content Sensors for low volume gas venting.
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Wellington Oil Well Configuration
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2 Phase Separator
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CO2 Vent Measurement
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CO2 Content Sensor
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CO2 Monitoring Data at Oil Wells
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Producing Well Test Data
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CO2 Measurement at Tank Battery
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CO2 Meter at Tank Battery
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CO2 Measurement, Verification and Accounting
• Accurately measure ALL CO2 injected – volume or mass.
• Must know relationship between volume and mass if using liquid CO2!
• Accurately measure ALL CO2 at producing wells and tank batteries. Any place CO2 leaves the reservoir.
• Choose injection site carefully to avoid underground leakage.
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Wellington Results
• CO2 Accounting • Total 374,461 MCF Injected (21,784 US tons) • Required 1,101 Truckloads, each about 20 US
tons. • Incremental Oil Production about 4,200 bbls
to date. • Approximately 11% of CO2 injected has been
produced (vented)
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CO2 Injection Begins 1-09-16
Oil Recovery Starts 2-26-16
Pause in CO2
Injection CO2
Injection Ends
Sustained High Volume
Water Injection
Begins 7-14-16
Legend
CO2 Injected and Recovered; Oil Produced Through 7/31/16
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0.001
0.01
0.1
1
10
100
1000
10000
12/12/2015 1/31/2016 3/21/2016 5/10/2016 6/29/2016 8/18/2016
Daily Purchased MCF CO2 (red)-- MCF CO2 recovered (gold) ---- Daily Ratio recovered vs purchased CO2 (blue)
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Wellington Unit Oil Production
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www.ccusconference.com #CCUS
Summary and Future Work
• No substantial deviations due to unforeseen circumstances (carbonate fracturing, temperature, pressure, etc.)
• Successful oil recovery • Low CO2 losses due to venting or reservoir
properties • Manage CO2 plume and finalize CO2 injection • 2D seismic to confirm CO2 plume
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Phase 2 CO2 Disposal
• Phase 2: Deep CO2 Disposal in Arbuckle Formation at 5100’ depth.
• Phase 2 goals: demonstrate CO2 can be safely disposed (sequestered) in the Arbuckle Formation.
• Phase 2 will start in 2017 (?) but waiting on disposal permit from USEPA. Getting close.
• Previously Berexco drilled two deep wells to the basement to characterize the Arbuckle reservoir, one of which will be the CO2 disposal well.
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Conclusions
• Measure CO2 accurately in and out. • Use good measurement equipment. • Maintain good records.
• Thanks and Credits to DOE/NETL, Kansas
Geological Survey, Berexco LLC.
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KGS 2-32 Drilling Phase
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KGS 2-32 Completion
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KGS 2-32 Start of Injection
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18 seismic seismometer array operating at Wellington Field to monitor CO2 pilot tests
G. Tsoflias Alex Nolte KU Geology J. Hollenbach & J. Victorine, KGS