Presentazione in lingua inglese di un tema a scelta.
Titolo: "Enhanced Oil Recovery:
Engineering ideas for getting the most out of proven oil reserves"
Nella presentazioni sono state trattate tutte le tecniche attualmente in uso nell'industria petrolifera per aumentare la produzione di petrolio
12. Enhanced Oil Recovery (EOR) 12/18
• oil gravity degree: 12 API
• oil viscosity: 700-1200 cp
• reservoir depth: 915 m
Bachaquero,
Western Venezuela
1. Steam injecPon " days to weeks
2. Well is shut in / soak " days
3. Well returns to producPon " weeks to months
Reservoir parameters for both SF and CSI:
! RelaPvely high Φ and K values (~ >0.2 and >100-200 mD)
! Shallow depths (not higher than ~1,000 m)
! Preferably no aquifer or gas cap
! Low shale content
Bachaquero Field, Western Venezuela
• RF: 16.2%
• 776 wells
• 1600 steam cycles
Cyclic Steam Injec]on (CSI)
13. ! Uninterrupted verPcal permeability is a must
! Understanding of the distribuPon of sedimentary facies
! RF can be as high as 70% - 80% of OOIP in suitable reservoirs
• Proven oil reserves have increased to 179 BBO
• Raised Canada's oil reserves to the 3rd highest in the world (azer Venezuela and Saudi Arabia)
• As of 2011, the oil sands reserves stand at around 169 BBO
www.energy.alberta.ca
Steam assisted gravity drainage (SAGD)
SAGD Development of Alberta oil sands - Canada
EOR method used for producing heavy crude oil and
bitumen, which flow down to the producPon well via gravity
Enhanced Oil Recovery (EOR) 13/18