Video: Application of Peres Integral and Gladfelter Deconvolution to Unconventional Reservoirs - The Fractured Basement Case
- Leonardo Kubota (Petrobras)
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- Society of Petroleum Engineers
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- Document Type
- 2018. Copyright is retained by the author. This presentation is distributed by SPE with the permission of the author. Contact the author for permission to use material from this video.
- 5.6.3 Pressure Transient Testing, 5.6 Formation Evaluation & Management, 5 Reservoir Desciption & Dynamics
- Pressure Transient Analysis, Unconventional Reservoirs, Deconvolution, Fractured Basement
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This paper prescribes the application of Peres Integral Method (1989) and Gladfelter Deconvolution (1955) to the analysis of pressure-transient tests performed on fractured basement reservoirs. Such type of unconventional porous medium features a matrix that plays no role whatsoever, while a fracture network accounts for both conductivity and storability. Well tests in these unconventional reservoirs might be dominated by noise from wellbore storage effects, which drown out actual reservoir response. We show that the joint application of those methods can effectively purge variable-rate effects from the pressure data and, as a result, unveil reservoir-flow dynamics.