beyond fault seal analysis - Force

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Diagenetic compartmentalisationCiPEG1 mD difference in thepermeability of thereservoir can have thesame impact as a partiallysealing fault
CiPEGConclusions• To gain history match of many HTHP reservoirs far lower faulttransmissibility multipliers are used than can be justified based onpublished fault rock permeability data• Taking into account problems with existing databases on faultrock properties does not provide good explanation for why suchlow TM values are needed for history match• Overestimation of sediment connectivity or failure to properlymodel 3-phase flow may be an issue• Diagenetic alteration maybe responsible for poor communicationbetween injectors and producers– Potentially reservoir permeability is slightly overestimated– Transition zone forms a permeability jail: consistent with lackof aquifer support in many HTHP reservoirs
Page 1 and 2: Reservoir compartmentalisation inHT
Page 3 and 4: Impact of faults on gas productionC
Page 5 and 6: CiPEGFault rock seals
Page 7 and 8: Extensive databases on faultpropert
Page 9 and 10: Simulation model using singlephasef
Page 11 and 12: Fault rock permeability needed forh
Page 13 and 14: Relative permeability of faults321C
Page 15 and 16: Capillary pressure (psi)Gas relativ
Page 17 and 18: CiPEGMiri cataclasite
Page 19 and 20: Variation in clay content between d
Page 21 and 22: Permeability (mD)Stress dependence
Page 23 and 24: Stress dependence of Hg injection d
Page 25: Reservoir quality in HTHP reservoir

beyond fault seal analysis - Force

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