SPE Distinguished Lecturer Program The SPE Distinguished Lecturer Program is funded principally through a grant from the SPE Foundation. The society gratefully acknowledges the companies that support this program by allowing their professionals to participate as lecturers. Special thanks to the American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) for its contribution to the program. Society of Petroleum Engineers Distinguished Lecturer Program www.spe.org/dl
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SPE Distinguished Lecturer Program SPE Distinguished Lecturer Program is funded principally through a grant from the . SPE Foundation. ... • Reservoir simulation remains the best
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SPE Distinguished Lecturer Program
The SPE Distinguished Lecturer Program is funded principally through a grant from the SPE Foundation.
The society gratefully acknowledges the companies that support this program by allowing their professionals to participate as lecturers.
Special thanks to the American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) for its contribution to the program.
Society of Petroleum Engineers Distinguished Lecturer Programwww.spe.org/dl
Impact of Cutoffs on Tight Gas Reservoir Simulation
Ahmed M. Al-HamadahSaudi Aramco
Society of Petroleum Engineers Distinguished Lecturer Programwww.spe.org/dl
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OUTLINE• Introduction & definitions• Identify key parameters to recovery • Sensitize on porosity & permeability
Conduct Statistical Analysis on Data Sandstone Gas Well
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Impact of Porosity Cutoffs on GIIP
Carbonates Reservoirs
48% 70%11% 30%V. TightUpper
5% Cutoff3% CutoffGIIP
Reduction
QualityRsrv
21% 55%11% 85%TightLower
% HM Wells GIIP Reduction % HM Wells
NOCUTOFFSAPPLIED
How things look when there is no cutoffs are applied
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Applying Porosity Cutoffs Alone
Watch for reservoir connectivity
APPLYING 3% POROSITY CUTOFF
APPLYING 5% POROSITY CUTOFF
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Watch for reservoir connectivity
Applying Permeability Cutoffs Alone
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Understand Water Saturation
• Identify end points from SCAL• Understand water saturation maps• Mimic logs with J-function • Partition composite facies data• Conduct statistical analysis on data
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Determine Endpoint Saturations
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Partitioning Composite Facies DataFAL SW vs. FAL Porosity - The Six Stratigraphic Layers