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Immiscible displacement of oil by water in consolidated porous media due to capillary imbibition under ultrasonic waves
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10.1121/1.2756190
/content/asa/journal/jasa/122/3/10.1121/1.2756190
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/3/10.1121/1.2756190

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Schematic of the experimental setup of imbibition experiments, (b) the glass imbibition cell used to collect oil effluent from a saturated core immersed in an aqueous phase.

Image of FIG. 2.
FIG. 2.

Peak-to-peak amplitude of a ultrasonic horn versus setting number (Misonix Sonicator 3000).

Image of FIG. 3.
FIG. 3.

(Color online) Flow chart illustrating all spontaneous imbibition experiments with different fluid pairs, rock types and boundary conditions.

Image of FIG. 4.
FIG. 4.

Summary of final recovery with and without ultrasound for all fluid pairs. The 45° line in (b) represents the case when the response equals that of the control. Dashed lines signify the percent deviation (%) from the control case. Recovery below deviation from the 45° line is believed to be within the uncertainty range of imbibition experiments, and therefore assumed to be unaffected by ultrasound (PV=Pore Volume of the rock, equivalent to the original oil in place).

Image of FIG. 5.
FIG. 5.

(Color online) Air recovery versus imbibition time of water imbibing into dry (a) Berea sandstone and (b) Indiana limestone. Blue and green curves represent the imbibition performance under ultrasound with a horn (, Setting 5) and ultrasonic bath , respectively. Red curves represent the control without the application of ultrasound. Both co-current and counter-current scenarios are shown (modified from Refs. 58 and 62).

Image of FIG. 6.
FIG. 6.

(Color online) Oil recovery versus time during spontaneous imbibition of water into kerosene and light mineral oil saturated Berea sandstone at two intensities of ultrasound for two boundary conditions: (a) all sides open (uncoated) (modified from Ref. 61), (b) bottom end open (coated). The dashed interval outlines the recovery when imbibition cells are reversed (modified from Ref. 62).

Image of FIG. 7.
FIG. 7.

(Color online) Cross-comparison plot of the sponta-neous imbibition of 15,000 and aqueous solution into light mineral oil saturated Berea sandstone (all sides open) at two intensities of ultrasound, as compared to no ultrasound. The 45° line represents the condition when the response under ultrasound equals that of the control (no ultrasound). Dashed lines signify the percent (%) deviation from the control.

Image of FIG. 8.
FIG. 8.

(Color online) Cross-comparison plot of the spontane-ous imbibition under ultrasound of brine solution into light mineral oil saturated Berea sandstone (all sides open) before and after aging for one month. The 45° line represents the condition when the response under ultrasound equals that of the control. Dashed lines signify the percent (%) deviation from the control.

Image of FIG. 9.
FIG. 9.

(Color online) Cross-comparison plot of oil recovery during spontaneous imbibition of 1% alkyldiphenyloxide disulfonic acid (DOWFAX 3B0), and 5% alkyldiphenyloxide disulfonic acid into light mineral oil saturated Berea sandstone (all sides open) at two intensities of ultrasound. The 45° line represents the condition when the response under ultrasound equals that of the control. Dashed lines signify the percent (%) deviation from the control.

Image of FIG. 10.
FIG. 10.

(Color online) A cross-comparison plot of the spontaneous imbibition of various alkyldiphenyloxide disulfonic acid solutions (DOWFAX 2A1) into light mineral oil saturated Berea sandstone (all sides open) under ultrasound. For comparison, we also added the imbibition performance of brine solution as aqueous phase. The 45° line represents the case when the response equals that of the control. Dashed lines signify the percent deviation (%) from the control case.

Image of FIG. 11.
FIG. 11.

(Color online) A cross-comparison plot of the spontaneous imbibition of various alkyldiphenyloxide disulfonic acid solutions into light mineral oil saturated Berea sandstone (all sides open) under ultrasound after aging samples for one month. For comparison, we also added the imbibition performance of brine solution as aqueous phase. The 45° line represents the case when the response equals to that of the control. Dashed lines signify the percent deviation (%) from the control case.

Image of FIG. 12.
FIG. 12.

(Color online) A cross-comparison plot, of the spontaneous imbibition of various alcohol ethoxylate (Tergitol 15-S-7) solutions into light mineral oil saturated Berea sandstone (all sides open) under ultrasound (Setting 5). The 45° line represents the case when the response equals that of the control. Dashed lines signify the percent deviation (%) from the control case.

Image of FIG. 13.
FIG. 13.

(Color online) A cross-comparison plot of the spontaneous imbibition of various xanthan gum solutions into light mineral oil saturated Berea sandstone (all sides open) under ultrasound (Setting 2). For comparison, we also added the imbibition performance after using a brine solution as aqueous phase. The 45° line represents the case when the response equals that of the control. Dashed lines signify the percent deviation (%) from the control case.

Image of FIG. 14.
FIG. 14.

(Color online) A cross-comparison plot, of the spontaneous imbibition of brine and 3% alyldiphenyloxide disulfonic acid solution into crude oil saturated Berea sandstone (all sides open) under ultrasound (Setting 2). The 45° line in (b) represents the case when the response equals that of the control. Dashed lines signify the percent deviation (%) from the control case.

Tables

Generic image for table
TABLE I.

Fluid properties of oleic and aqueous phases used in spontaneous imbibition experiments. All values were measured at standard atmospheric conditions. DOWFAX 2A1=Sodium Dodecyl Diphenyloxide Disulfonate. Tergitol 15-S-7=Alcohol Ethoxylate.

Generic image for table
TABLE II.

Interfacial tension data for all fluid pairs used in the experiments. All values were measured at standard atmospheric conditions using a DuNouy-type tensiometer.

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/content/asa/journal/jasa/122/3/10.1121/1.2756190
2007-09-01
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Immiscible displacement of oil by water in consolidated porous media due to capillary imbibition under ultrasonic waves
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/3/10.1121/1.2756190
10.1121/1.2756190
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