Upcoming Division Event

Leveraging Machine Learning for Building Seismically-Constrained Reservoir Models: A Permian Case Study

Speaker: Dennis Ellison, Emerson
Time: 12:00 - 1:00 pm, Thursday, Nov. 28, 2019
Location: Palliser Conference Centre on the 2nd floor, 298, 115 9th Ave SE

*CSPG members can register for free and track their CPD hours!

To evaluate the quality of the reservoir and gain a more realistic measure of its heterogeneity before drilling, geoscientists require accurate, calibrated reservoir models and maps to better understand rock type and fluid distribution and forecast production potential. Typically, these reservoir models are created from wireline and core data. Ideally, these reservoir models are digital representations of the subsurface which include seismic constraints for structure, lithology, and fluids.

An effective tool for meeting this challenge is Democratic Neural-Network Association (DNNA), and Emerson-developed Rock-Type Classification method based on a Supervised Machine Learning approach. This method reconciles seismic data with well data to predict formations, fluids, and structure away from the wellbore. It employs an ensemble of neural-networks running in parallel which simultaneously learn from the multi-resolution wellbore and seismic data using different strategies and associations. This machine learning architecture minimizes the possibility of biasing the results. DNNA includes a secondary training stage where seismic data is introduced away from the wellbore and “voted” on for training set inclusion. This “voting” step stabilizes the learning process while preventing overfitting.

The aim is to generate a seismically constrained probabilistic facies model from electrofacies models, and preferably core data. The strength of this method is its ability to integrate different data types (core, wireline, seismic) and resolutions. This technology reveals new insights into the seismic data reliability for predicting subsurface reservoir models away from well locations.

In his role as Technical Advisor – Geophysics, Dennis Ellison helps producers get more from their data by leveraging next generation technology. His career started in depth imaging of geologically complex land data and transitioned into Reservoir Characterization and Quantitative Interpretation, focusing on unconventional geological and geomechanical property prediction. Dennis actively volunteers with ENERGYminute, CSEG, and Scouts Canada. Earlier this year, the ENERGYminute won the Community Engagement and Educational Outreach Award with the SPE – Calgary Section, and in 2017, he received awards from GeoConvention and the CSEG. He is a member of SEG, CSEG, APEGA, EAGE, and SPE.

Division Sponsor

Division Profile
The mandate of the Geomodeling Division is to provide CSPG members with opportunities for education and information related to technical developments in the subject areas of geomathematics and computer technologies as they are used in the pursuit of petroleum exploration and development. As a main contribution of the division, technical luncheon presentations are held once a month, usually on the last Wednesday of the month. 

The subjects that are presented in these technical talks include, for example, The latest developments in geomathematical applications, Geological modeling technology, Geostatistical approaches to modeling and risk analysis, Geological case studies using computer technology and the benefits, Digital data organization - storage and retrieval. In addition, ad hoc forums may be organized where members can discuss geomathematical and geological computer issues with experts in the field.The Geomodeling Division does not endorse or promote the use of specific commercial software products, nor does it perform any testing or comparative studies of such products.We do encourage volunteers to present public talks on case histories that illustrate the use of technology and methods.

The success of the Division depends on volunteer participation. CSPG members are encouraged to attend the activities of the Geomodeling Division and to be involved in organizing these activities. Division meetings are held once a month over lunch. If you are interested in joining this committee or if you have suggestions for luncheon talks or other activities, please contact any members of the committee.

Committee Members

Weishan Ren | Chairperson      Tom Cox                       Hayley Silberg             Sonia Brar
David Garner | Co-chair            Sasan Ghanbari           Darcy Novak                Cindy Xu

Olena Babak                             Damien Thenin             Eric Niven  

There is no charge. Non-members of the CSPG are also welcome. Please bring your lunch. For details or to present a talk in the future, please contact Weishan Ren via email at