Enhanced Oil Recovery :: EOR Solutions
Description
pulled from site's meta descriptionEnhanced Oil Recovery (abbreviated EOR) is a generic term for techniques for increasing the amount of crude oil that can be extracted from an oil field. Using EOR, 30-60%, or more, of the reservoir's original oil can be extracted compared with 20-40% using primary and secondary recovery. Enhanced Oil Recovery (EOR) is a term applied to methods used for recovering oil from a petroleum reservoir beyond that recoverable by primary and secondary methods. Primary recovery normally refers to production using the energy inherent in the reservoir from gas under pressure or a natural water drive. Secondary recovery usually refers to injection of water or waterflooding. Thus, Enhanced Oil Recovery is often synonymous with tertiary recovery. Improved Oil Recovery (IOR) and Advanced Oil Recovery (AOR) have similar meaning, except they also apply to primary and secondary methods, and sometimes EOR methods can be used earlier in the sequence. At or before the time these drawings were prepared, waterflooding was considered as Enhanced Oil Recovery, but now EOR is generally considered to follow waterflooding. Four groups of methods - thermal recovery, gas miscible recovery, chemical flooding and microbial flooding - are included in this collection. Twelve EOR methods and two production technologies are described and illustrated in this collection. The thermal recovery methods are steamflooding, cyclic steam stimulation and in situ combustion. The gas miscible recovery methods are carbon dioxide flooding, cyclic carbon dioxide stimulation, nitrogen flooding and nitrogen-CO 2 flooding. The chemical flooding methods are polymer flooding (including polymer gels), micellar-polymer flooding, and alkaline flooding. Microbial EOR methods include microbial flooding and cyclic microbial recovery. The production technologies are improved drilling technology and hydraulic fracturing.
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[[Category:methods.Primary]][[Category:recovery. Improved]][[Category:waterflooding. Four]][[Category:collection. The]]
- AboutUs AutoGen
- Enhanced
- Recovery
- (abbreviated
- generic
- techniques
- increasing
- amount
- crude
- extracted
- field.
- Using
- 30-60%
- more
- reservoir's
- original
- compared
- 20-40%
- using
- primary
- secondary
- recovery.
- (EOR)
- applied
- methods
- recovering
- petroleum
- reservoir
- beyond
- recoverable
- recovery
- normally
- refers
- production
- energy
- inherent
- under
- pressure
- natural
- water
- drive.
- Secondary
- usually
- injection
- waterflooding.
- Thus
- often
- synonymous
- tertiary
- (IOR)
- Advanced
- (AOR)
- similar
- meaning
- except
- apply
- sometimes
- earlier
- sequence.
- before
- these
- drawings
- prepared
- waterflooding
- considered
- generally
- follow
- groups
- thermal
- miscible
- chemical
- flooding
- microbial
- included
- collection.
- Twelve
- technologies
- described
- illustrated
- steamflooding
- cyclic
- steam
- stimulation
- combustion.
- carbon
- dioxide
- nitrogen
- nitrogen-CO
- flooding.
- polymer
- (including
- gels)
- micellar-polymer
- alkaline
- Microbial
- include
- improved
- drilling
- technology
- hydraulic
- fracturing.