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Event
SPE Permian Basin - October Section Meeting
Date: October 19, 2017
Time: 11:30am to 1:00pm
Location: Midland Petroleum Club
Dr. Ahmed Ouenes
FracGeo LLC
"Geomechanical Modeling with Poroelasticity to Prevent Mid and Far Field Frac Hits in Naturally Fractured Unconventional Reservoirs"
Preregistering is not required, but encouraged to take advantage of $5 savings.
Abstract
The proper modeling of unconventional reservoirs requires multiple tools to represent the physics that occurs at three different scales. The Far Field requires the use of reservoir geomechanics to capture the interaction between the regional stress and the three key sources of stress gradients: natural fractures, heterogeneous distribution of geomechanical properties and pore pressure. The Mid Field requires the use of interface geomechanics that takes into account the complex vertical propagation of a hydraulic fracture in the presence of a vertically varying stress crossing multiple heterogeneous layers of naturally fractured rocks. Interface geomechanics must also incorporate the constraints imposed by the Far Field and its resulting heterogeneous horizontal stress gradients. The Near Field is where wellbore geomechanics combined with wireline and/or surface drilling data provides an estimation of the key geomechanical properties, stresses, pore pressure and natural fractures. These factors will have a major impact on the performance of the near wellbore physics as well as provide indication on potential depleted zones that could indicate a potential pressure conduit that could facilitate frac hits. In this presentation, focus will be given to the use of fast methods (asymmetric tri-linear models and Fast Marching Method) to estimate the pressure depletion around existing wells. The resulting pressure will be used as input in poroelastic geomechanical modeling that takes into account variable geomechanical properties and a realistic distribution of natural fractures estimated using the Continuous Fracture Modeling (CFM) approach. A Wolfcamp case study is used to illustrate the interaction between Wolfcamp B and Lower Spraberry wells. An Eagle Ford example is used to illustrate the optimal spacing needed between a child well and a depleted parent well. The two case studies will be used to illustrate the importance of recognizing the geologic features contributing to frac hits and present at different scales. From this understanding, the proper science and software tools were developed and deployed across E&P companies to predict well interferences so they can be managed and avoided with adaptive fracing strategies.
Bio
Ahmed is the founder and CEO of FracGeo, a technology company that specializes in improving the development of unconventional reservoirs. Ahmed has 29 years experience in the oil and gas industry where he occupied different positions in consulting, software development, operating oil and gas fields, and academia. Ahmeds main interest is the development of new reservoir characterization technologies that improve the bottom line of E&P companies. He has been focusing lately on developing 3G concepts and new ways to integrate Geomechanics with Geology and Geophysics (3G) to improve frac design and reservoir simulation of unconventional reservoirs. Previously, Ahmed was the founder and president of Prism Seismic, a software and consulting company sold in 2011 to the Symphony Technology Group. Ahmed was Chief Reservoir Engineer at RC Squared where he developed the first commercial software for the Continuous Fracture Modeling (CFM) technology. He was also Executive Vice President of an independent oil and gas producer that focused on developing fractured reservoirs. Ahmed graduated from Ecole Centrale de Paris and holds a Ph.D. in Petroleum Engineering from New Mexico Tech. He is the author of more than 80 papers on various complex reservoir studies and new reservoir modeling techniques that cover a wide range of multidisciplinary topics including unconventional reservoirs, geomechanics, fracture modeling, reservoir geophysics, artificial intelligence, reservoir simulation and proxy models, automatic history matching, stochastic optimization for inverse problems, upscaling, geostatistics, and wettability. He teaches fracture modeling courses for AAPG, CSEG and other professional organizations.
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LocationMidland Petroleum Club (View)
501 W Wall St
Midland, TX 79701
United States
Categories
| Kid Friendly: Yes! |
| Dog Friendly: No |
| Non-Smoking: Yes! |
| Wheelchair Accessible: Yes! |
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Contact
| Owner: Kyle Richter |
| On BPT Since: Apr 25, 2011 |
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| Darlene Olson |
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