Light-Oil Steamflooding: A Laboratory Study

Sarathi, Partha; Roark, S.D.; Stryker, Arden R.

doi:10.2118/17447-pa

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…These later results are attributed to a steam distillation mechanism, which "boils off" the lighter components with the concomitant increase in the percentage of oil recovery with respect to hot water displacement, as mentioned in the Introduction. Similar results have been proposed by other authors in their physical and numerical simulation studies [8][9][11][12][13][14][15] .…”

Section: Resultssupporting

confidence: 91%

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Physical and Numerical Simulations of Steamflooding in a Medium Crude Oil Reservoir, Lake Maracaibo, Venezuela

Ovalles

Angel

Perez-Perez

et al. 2002

Proceedings of SPE/DOE Improved Oil Recovery Symposium

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractPhysical and numerical simulations of steamflooding were carried out to determine the technical feasibility of applying this technology to a medium crude oil reservoir (25° API) located in the Lake Maracaibo, Western Venezuela, specifically, 3 rd phase LL-03 reservoir. A one-dimension cell with steam injection (80% quality and 400 psi) was used to study the steamflooding behavior at laboratory scale. Oil rates cumulative oil productions and temperature profiles were reported and the results showed an increase of 14-20 percent of oil recovery with respect to original oil in place after waterflooding. Additionally, the use of steam drive as primary recovery method showed an additional of 5% in cumulative oil production. Compositional-thermal numerical simulations were carried out and validated using the laboratory scale results. Based on analysis of the crude oil true boiling point curve, the oil fraction was represented by a three pseudocomponents model. The results (oil rates and cumulative oil productions) showed a reasonable match between the calculated and experimental simulations.Using this model, a numerical simulation study was carried out in a seven-spot inverted pattern (300 m) in order to provide performance forecast and other useful information for the design, implementation and operation of a field scale steamflooding test. After seven-year of steamflooding, the simulation showed only 15 percent of incremental oil recovery in comparison with waterflooding. However, using a five-spot inverted pattern (100 m), 2.5-fold increase in cumulative oil production can be predicted with respect to waterflooding during the same period. Based on these results, it can be concluded that steamflooding technology in a Lake Maracaibo medium crude oil reservoir (25° API) represents a feasible alternative with high potential applications.

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Section: Resultssupporting

confidence: 91%

“…As shown, the time needed for oil displacement was reduced from 1500 min (waterflooding followed by steamflooding) to 400 min (steam drive only). This result gives evidence on the advantages of using steam as primary EOR method 8,14 .…”

Section: Resultsmentioning

confidence: 65%

Physical and Numerical Simulations of Steamflooding in a Medium Crude Oil Reservoir, Lake Maracaibo, Venezuela

Ovalles

Angel

Perez-Perez

et al. 2002

Proceedings of SPE/DOE Improved Oil Recovery Symposium

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“…In low-pressure, scaled-model studies, the porous media has typically been very ' strongly water-wet glass beads (Doscher et al, 1982;Doscher, 1981;Sufi, 1990;Ahner and Sufi, ' 1990;Lookeren, 1977;I;arouq Ali, 1985). High-pressure models have used unconsohdated field sand of intermediate wettability (Quettier and Corre, 1988;Green and lsaa_zs, 1986), very strongly water-wet quartz sands (Butler and Yee, 1986;Ozen and Farouq Ali, 196"/;Coats, et al,, 1974), or very strongly water-wet consolidated sandstone, such as Berea sandstone (Ozen and Farouq Ali, 1967;Sarathi et al, 1990;Madden and Sarathi, 1985), or crushed Berea sandstone (Madden and Sarathi, 1985;Wu and Fulton, 1971) as the porous media in their laboratory studies of thermal oil recovery processes.…”

Section: Effect Of Temperature On Capillary Pressure and Wettabilitymentioning

confidence: 99%

Supporting technology for enhanced oil recovery: Sixth amendment and extension to Annex IV enhanced oil recovery thermal processes

Reid¹,

Rivas²

1991

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DISCLAIMER Thisreportwaspreparedasan account of worksponsored byan agencyoftheUnitedStatesGovernment.Neitherthe UnitedStatesGovernment noranyagency thereof, noranyoi theiremployees, makes anywarranty, expressor implied, or assumes anylegalliabilityor responsibility fortheaccuracy, completeness, or usefulness ofanyinformation°apparatus, product, or process disclosed, orrepresents that itsusewouldnot inlringeprivately ownedrights. Reference hereintoanyspecific commercial product, process,or serviceby trade name,trademark, manufacturer, or otherwisedoes not necessarily constitute or implyitsendorsement, recommendation, or tavoring bytheUnitedStatesGovernment or any agencythereof.TheviewsandoDinlons oi authorsexpressed hereindo not necessarily stateor reflectthoseof the UnitedStatesGovernment or anyagencythereof. This report has been reproduced directly from the best available copy.

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“…Details of the experimental procedures have been described 25. Almost a direct correlation was noted between the severity of the steam treatment and the decrease in oil-wetness (an increase in water wetness) in these experiments.…”

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confidence: 93%