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

Geomodeling Committee

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

Olena Babak                              Damien Thenin            Seyi Fatoke      

Upcoming Division Talks

Unconventional fracture modeling with new seismic to stimulation workflows: toward understanding the science behind shale

Speaker: Venkateshwaran Ramanathan | Technology Integration Group Leader / Stimulation Domain Manager - Schlumberger Canada

Thursday, March 30th, 2017 - 12:00 Noon

Husky Conference Room A, 3rd Floor, +30 level, South Tower, 707 8th Ave SW, Calgary, Alberta

Stimulating Shale Gas Wells has become a mundane activity with very little or no customized engineering. As the industry has focused on reducing costs and increasing efficiencies of operations, there has been seldom time for fracture design or well positioning engineering.  The lack of any horizontal logging information and the assumption that rock quality does not change has led to spreadsheets providing the fracture designs based on mass balance computations. This results in the same fracture treatment being pumped stage after stage, well after well. The industry has not been modelling the complex fractures being generated and has moved away from fundamental fracture design. This trend has resulted in unexplained large variation in the productivities of the wells and a significant percentage of the wells drilled in unconventional formations not reaching expected profitability.  
This talk details the planning, design and evaluation processes in the application of a new workflow called the Unconventional Reservoir Optimized Completion workflow. This revolutionary seismic to stimulation workflow migrates, a well centric process to a reservoir centric process. By integrating the well logs, and seismic attributes into a model of reservoir parameters, regional geomechanical stresses and local nature fracture networks, a significant step change in induced fracture modelling has been achieved. These models, when validated using micro-seismic and calibrated with production, become a powerful predictive tool for fracture stage placement and even well positioning and spacing. Examples of the application of unconventional fracture models with the ability to model complex fractures and the impact on production experiences and lessons learned will be presented. 

Figure 1: An unconventional horizontal well with predicted complex hydraulic fractures, calibrated with micro-seismic events.

Mr. Venkateshwaran (Venky) has been working with hydraulic fracturing stimulations and completions for Schlumberger since 1998 in various locations around North America. Since 2013, he is working to improve the production return on investment of hydraulic fracturing operations in the unconventional plays of the Western Canadian Sedimentary Basin. Venky has a Master’s degree in Petroleum Engineering from West Virginia University in USA and a Bachelor’s degree in Chemical Engineering from Annamalai University in India.

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.

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