Tulsa Geological Society upcoming events

Joint Luncheon with SPE "Assessing CO₂ Storage Potential in the Arbuckle Group, Northeastern Oklahoma: Geological and Reservoir Simulation Modeling" with Dr. Benmadi Milad (16 Sep 2026)

Wed, 16 Sep 2026 16:30:00 GMT

Joint Luncheon with SPE

Assessing CO₂ Storage Potential in the Arbuckle Group, Northeastern Oklahoma: Geological and Reservoir Simulation Modeling.

Speaker: Dr. Benmadi Milad

Lunch 11:30 Presentation 12:00

Publications:

· CO2 Geological Model: https://doi.org/10.1016/j.fuel.2023.129323
· CO2 Simulation Model: https://doi.org/10.1016/j.ijggc.2026.104679

Abstract

Carbon Capture and Storage (CCS) projects require secure, long-term containment of CO₂ in suitable geological formations, which depends on plume behavior, pressure dynamics, and trapping mechanisms. This study evaluates CO₂ storage feasibility of 51.5 megatonnes (MT) in the Arbuckle Group within Osage Nation and Kay County, Northeast Oklahoma. Using a subsurface geological model and historical field data from saltwater disposal and hydrocarbon production, we developed and calibrated a pressure model with real-time monitoring data. Integrated geological and pressure models were applied in reservoir simulations to assess CO₂ injection scenarios with varying perforation depths across the Arbuckle over 1000 years. Results indicate that injection confined to the lower Arbuckle interval ensures plume containment, whereas upper-interval injection increases the risk of caprock penetration. Long-term security relies on multiple trapping mechanisms: approximately 40% from residual and mineral trapping and 60% from solubility, structural-stratigraphic trapping and caprock integrity. Mineralization accounts for ∼8% of injected CO₂ over millennial timescales, primarily through anorthite dissolution and precipitation of calcite and dolomite. This study relies on limited sites specific data, including sparse core measurements, analog-derived flow and geochemical properties, coarse grid resolution, and default CMG parameters, making predictions of plume evolution, trapping efficiency, and caprock behavior preliminary. Thus, additional assessments require further validation with higher resolution data and sensitivity analyses. Overall, though, our findings underscore the importance of injection depth, caprock integrity, and pressure management in CCS site selection and design.

Biographical Sketch

Dr. Benmadi Milad is a Geostorage Specialist and Energy Team Lead at the Oklahoma Geological Survey (OGS) and Adjunct Faculty at the University of Oklahoma (OU). His research focuses on subsurface energy resources, geological carbon storage, underground hydrogen storage, and emerging energy technologies, integrating geoscience and engineering to support energy solutions.

Dr. Milad serves as Co-Principal Investigator of the Oklahoma Carbon Hub (OKHUB), a CarbonSAFE project currently under negotiation to evaluate large-scale CO₂ storage opportunities in Oklahoma. He works with multidisciplinary teams from academia, government, national laboratories, and industry on reservoir characterization and modeling for carbon storage deployment.

His expertise includes geological and reservoir modeling, petrophysics, reservoir characterization, numerical simulation, fluid-rock interactions, geological carbon storage, and underground hydrogen storage. Prior to joining OGS, he worked as a Senior Production Engineer at Eni and later as a Postdoctoral Research Associate at the University of Oklahoma, where he conducted research, taught petroleum engineering courses, and mentored students.

Drawing on experience across industry, academia, and applied geoscience research, Dr. Milad advances collaborative and innovative approaches to subsurface energy development and storage.

Crater of Diamonds Family Trip! (18 Sep 2026)

Fri, 18 Sep 2026 05:00:00 GMT

Please register for free if you are planning to attend. We have a group planning to camp Friday and Saturday and go into the park to dig on Saturday! We will try to organize a group meal Saturday evening - details in the works.

We have a few campsites reserved, you can register to use one of them at cost here, or reserve your own campsite. We have campsites 49,52,51,48,40 reserved, grab one nearby! To reserve your own visit Arkansas State Park Reservations.

7th Bienniel AAPG Mid-Con Section Field Conference (2 Oct 2026)

Fri, 02 Oct 2026 05:00:00 GMT

7th BIENNIAL AAPG MID-CONTINENT SECTION FIELD CONFERENCE

Hosted by OKLAHOMA STATE UNIVERSITY

OCTOBER 2-4, 2026

Geoscience Integration of Hydrology and Petroleum Geology Along the Seminole -Cushing Ridge and the Arbuckle-Simpson Aquifer, Eastern and Southern Oklahoma

Course Leadership: Dr. Todd Halihan, Dr. Brandon Spencer, Lawrence Walker, John Brett

Background and Significance

For more than a century, the Arbuckle-Simpson (Cambro-Ordovician) and “Vamoosa Group” (Late Carboniferous) bedrock aquifers in Oklahoma have supported regional growth by supplying water to rural residents and larger communities, including Tulsa. Over the same period, the petroleum industry has extracted, stored, transported, and refined billions of barrels of oil and gas equivalent from formations beneath and adjacent to these aquifers. Together, these water and energy systems extend from the East Davis and Fitts “Pool” oil fields in the south northward through the Seminole-Cushing Uplift into Osage County.

Course Focus and Approach: Surface to Basement Integration

Automated computing workflows have improved understanding of connected pore systems. In this course, participants will examine outcrops and subsurface sites tied to aquifer evaluation and oil field pressure maintenance while discussing geologic scale and reservoir connectivity. Exercises will use remote sensing data from the Arbuckle-Simpson Uplift, borehole cross-sections, 3D frameworks, and a Virgilian aquifer geologic model developed in SLB’s Petrel software.

Hotel Links

Stillwater

Home2Suites: https://group.home2suites.com/ha5wq8

Best Western: https://www.bestwestern.com/en_US/book/hotel-rooms.37120.html?groupId=R33HM3B3

Ardmore

Group Rate

Courtyard by Marriott:

https://www.marriott.com/event-reservations/reservation-link.mi?id=1783364517981&key=GRP&app=resvlink&_branch_match_id=1573327375388976171&_branch_referrer=H4sIAAAAAAAAA8soKSkottLXTywo0MtNLCrKzC8p0UvOz9UvSi0uy0wtN7IHytiCODmZedlqmSm2huYWxsZmJqaG5pYWhmrZqZW27kEBanVFqWmpQO156fFJRfnlxalFts4ZRfm5qQAVzwVDYQAAAA%3D%3D

Early (before 3 September)

Industry/government folks: $325

Faculty/academic: $225

Guest/Spouse: $125

Late (after 3 September)

Industry/government folks: $400

Faculty/academic: $300

Guest/Spouse: $175

Student Registration is Free!

This sponsorship is made possible through Geoscience Foundation of Tulsa (GFT). Travel Vouchers are available for Students.

Rate includes Friday evening seminar and dinner, Saturday AM refreshments before departure, lunch on Saturday during the trip, dinner and two drink tickets for Saturday night at the Courtyard, and light refreshments during the trip on Sunday. Breakfast is included in the Courtyard booking on Sunday AM.

AAPG MidCon page advertising: https://aapgmcs.org/

Save the Date! 2027 Shrimp Boil! (5 Jun 2027)

Sat, 05 Jun 2027 18:00:00 GMT

SAVE the DATE!

2027 Shrimp Boil!

June 5th, 2027

Chandler Park Shelter #1