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Keywords: flood
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Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218194-MS
... Abstract Heterogeneous sandstone reservoirs pose many challenges to oil recovery, one of them being recovering oil from the low permeability zones. Low-tension-gas (LTG) flooding has been proven to be effective in mobilizing oil trapped in low permeability reservoirs. Meanwhile, polymeric gel...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 25–29, 2022
Paper Number: SPE-209385-MS
... was conducted with the dead oil. The surfactant formulation systems were tested in tertiary ASP core floods in reservoir rocks. Many surfactant formulations were identified which gave ultralow IFT, but the formulation with only one surfactant (at 0.5 wt% concentration) in presence of one co-solvent was selected...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200461-MS
... Abstract Polymer flooding has proved to be a successful EOR method in very heavy oil reservoirs, despite failure to achieve a favorable mobility ratio even with polymer, which was originally imagined to be a necessary criterion for success based upon fractional flow theory. In a previous study...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190328-MS
...Introduction Abstract In this paper we investigate the contribution of capillary and viscous cross-flow to oil recovery during secondary polymer flooding. Cross-flow can be an important mechanism in oil displacement processes in vertically communicating stratified reservoirs. Using polymers...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190296-MS
... Chemical Flooding (alkali-surfactant-polymer (ASP) and surfactant-polymer (SP)) employs surfactants to reduce the interfacial tension (IFT) between oil and brine to very low values so that residual oil saturations in porous media can be reduced to less than 1% in the swept zone. Many laboratory...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190193-MS
... Abstract This paper presents modeling CO 2 enhanced oil recovery (EOR) flood performance through the application of dimensionless scaling for both forecasting and surveillance purposes. While the methodology has been used successfully for West Texas CO 2 floods for more than two decades...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 11–13, 2016
Paper Number: SPE-179540-MS
... Abstract Achieving maximum oil recovery utilizing CO 2 has limitations when operating at, or very close, to the Minimum Miscibility Pressure (MMP) of the CO 2 in the oil. A modular source of CO 2 would allow Enhanced Oil Recovery (EOR) flooding of "stranded" and shallow reservoirs...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 11–13, 2016
Paper Number: SPE-179568-MS
... associated with miscible floods. As a result, shallower reservoirs containing significant volumes of recoverable resource are generally overlooked. However, basins with relatively low geothermal gradients and high fracture gradients, such as the Illinois Basin, can sustain pressures above the vapor pressure...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 11–13, 2016
Paper Number: SPE-179586-MS
...) and steam flood, and very tight well spacing (P50 value of 4 acres, as close as 0.25 acres) development strategy. The 51 high recovery conventional clastic reservoirs are characterized by favorable reservoir and fluid properties, water-wet or mixed-wet wettability, high net to gross ratio, and strong...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 11–13, 2016
Paper Number: SPE-179606-MS
... Abstract Alkaline-surfactant-polymer (ASP) flooding of a viscous oil (100 cp) is studied here in a two-dimensional (2D) sand pack. An ASP formulation was developed by studying the phase behavior of the oil with several alkaline-surfactant formulations. The effectiveness of the ASP formulation...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 11–13, 2016
Paper Number: SPE-179689-MS
... by an inelastic Newtonian fluid (diluted glycerin). These floods were followed by injection of a viscoelastic polymer, hydrolyzed polyacrylamide (HPAM). Significant reduction in residual oil was observed for all core floods performed at constant pressure drop when the polymer had significant elasticity...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 12–16, 2014
Paper Number: SPE-169057-MS
... sulfate – internal olefin sulfonate (APS/IOS). Surfactant adsorption is low and oil recovery in core floods is high. Static adsorption tests show that low surfactant adsorption is attained at pH > 9, a condition that ammonia satisfies at low solution concentration. It is expected that ammonia has...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 12–16, 2014
Paper Number: SPE-169062-MS
... Abstract Polymer flooding is becoming increasingly more common and more successful in western Canada. In the year 2011, western Canada produced over 1,600,000 m 3 of oil using polymer flooding. In the statistical study reported here, production, injection, reservoir, and operating data were...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 12–16, 2014
Paper Number: SPE-169109-MS
... to secondary water floods. Tracer tests could act as a good screening tool to identify potential reservoirs/projects for EOR projects as well. EOR projects require accurate reservoir characterization for project success. Apart from providing information on thief zones the analysis could help in estimating...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 12–16, 2014
Paper Number: SPE-169155-MS
... improved SNR per scan and shorter echo spacing as described by Mitchell et al. (2013b) . However, depending on the required SNR and number of pixels, a phase-encoded T 2 profile can be slower to acquire. We have used this method previously in a brine-only core flood by Mitchell et al. (2013a...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 12–16, 2014
Paper Number: SPE-169162-MS
... Abstract Polymer flooding is investigated in laboratory cores as a non-thermal enhanced oil recovery process for viscous oils in heterogeneous carbonate reservoirs. Core floods were performed in vuggy dolomite cores saturated with 200 cP crude oil and complementary pore-scale investigations...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 14–18, 2012
Paper Number: SPE-152862-MS
... Abstract The Beaver Creek Madison project is the most recent CO 2 EOR project in the state of Wyoming. Having pre-project oil production of 43 MMBO, this flood is projected to increase recovery by 11.1 MMBO or 10% of the estimated 109 MMBO OOIP. Early CO 2 flood response has yielded...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 14–18, 2012
Paper Number: SPE-153906-MS
... Abstract A pilot carbon dioxide miscible flood was initiated in the Lansing Kansas City C formation in the Hall Gurney Field, Russell County, Kansas. The reservoir zone is an oomoldic limestone located at a depth of about 2900 feet. The pilot consisted of one carbon dioxide injection well...

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