Multiple Porosity/Fractal/Anomalous Diffusion Models, for Heterogeneous Complex Reservoirs

Recorded On: 10/13/2022

The pore structures of conventional and unconventional reservoirs have various scales of heterogeneity, which lead to multiple flow mechanisms at different scales. 

Non-Darcy flow may occur at high and low velocities, at the lower end we have the sub-diffusion that occurs in unconventional resources and that can be captured using a fractional temporal derivative of Darcy’s law.

In naturally fractured reservoirs, the fractal geometry eliminates the assumptions used in the traditional dual-porosity model, because the geological/geomechanical origins of most fracture networks do not justify them. In addition, a triple-porosity/dual-permeability formulation considers both a fracture network and a dissolution cavities network.  Both the fractal dual-porosity and the triple-porosity/dual-permeability continuous models are more general than the traditional dual-porosity model. 

The fractional and fractal approaches represent two ways to capture anomalous diffusion, which is more overarching than the classical normal diffusion, usually assumed in most numerical simulators.

This webinar focuses on the convenience of using the fractional approach to analyze transient pressure and rate field data.  Also, this webinar addresses the pressure transient analysis with the fractal and the triple-porosity/dual-permeability models and the production consequences of these two more general continuous models.

This webinar is categorized under the Reservoir technical discipline.

All content contained within this webinar is copyrighted by Rodolfo Camacho and Wei-Chun Chu and its use and/or reproduction outside the portal requires express permission from Rodolfo Camacho and Wei-Chun Chu.

Rodolfo Camacho

Rodolfo Gabriel Camacho-Velázquez is a professor in the petroleum engineering department at the National University of Mexico, where he teaches courses related to naturally fractured reservoirs and provides guidance and monitors research progress on the subject.

He worked with Pemex for 25 years, where he was the manager of different positions identifying assets’ technical needs and provided guidance on the dynamic characterization and behavior of complex, naturally fractured reservoirs. 

Camacho is the current SPE Reservoir Technical Director, a member of the SPE Reservoir Advisory Committee, and was an SPE Distinguished Lecturer for the 2015–2016 season. In 2008, he received the Lester C. Uren Award. 

Camacho-Velázquez was president of SPE’s Mexico Section from 2004 to 2007, and review chairman for SPE Reservoir Evaluation and Engineering from 1997 to 1999.

Camacho-Velázquez holds master’s and doctorate degrees in petroleum engineering from The University of Tulsa, and a bachelor’s degree in geophysical engineering from the National University of Mexico.

Wei-Chun Chu

Weichun Chu retired from Pioneer Natural Resources (PXD) in 2019 as an Engineering Technical Specialist. He has 41 years of reservoir engineering experience in both conventional and unconventional reservoirs with primary focus on pressure analysis. Before rejoining PXD in Irving, Texas, he was with OMV in Vienna, Austria and PXD in London, UK. In 2000, he retired from Marathon Oil Company as a Technical Consultant in Littleton, Colorado. He has designed and analyzed all types of well tests for oil, gas and water reservoirs around the world including formation testing. Weichun holds a BS degree in Chemistry from New Mexico Tech and a PhD degree in Petroleum Engineering from the University of Tulsa and is a member of SPE.

Erdal Ozkan (Moderator)

Erdal Ozkan is a Distinguished Member of SPE and a professor at Colorado School of Mines.He holds BS and MS degrees from Istanbul Technical University and a Ph.D. degree from the University of Tulsa. His specialties are reservoir engineering, flow in porous media, PTA/RTA, and unconventional reservoirs. He has written over 150 papers, a book, and several book contributions. Ozkan received the SPE Lester C. Uren (2013),Formation Evaluation (2007),and Rocky Mountain North America Reservoir Description and Dynamics (2018) Awards. He was a Distinguished Lecturer (2011-2012)and the Reservoir Technical Director on the SPE International Board of Directors(2018-2021).

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Multiple Porosity/Fractal/Anomalous Diffusion Models, for Heterogeneous Complex Reservoirs
10/13/2022 at 11:00 AM (EDT)   |  90 minutes
10/13/2022 at 11:00 AM (EDT)   |  90 minutes
20 Questions
Live and Archive Viewing: 0.15 CEU/1.5 PDH credits and certificate available
Live and Archive Viewing: 0.15 CEU/1.5 PDH credits and certificate available