公开(公告)号：US20220145165A1

公开(公告)日：2022-05-12

申请号：US17516275

申请日：2021-11-01

申请人： UNIVERSITY OF WYOMING

发明人： Lamia GOUAL ,  Kaustubh Shriram RANE ,  Bingjun ZHANG

IPC分类号： C09K8/584 ,  C09K8/594 ,  E21B43/16

摘要： In one embodiment, a method for recovery of an oil from a porous medium comprises contacting the porous medium with an aqueous nanofluid, solubilizing oil from the porous medium via the nanoparticles to form a dispersion comprising the oil and the aqueous nanofluid, and collecting at least some of the dispersion. The aqueous nanofluid may contain a combination of amphiphilic quantum dots and hydrophilic quantum dots, in a continuous phase. At least 90% of the quantum dot nanoparticles may have an aspect ratio of from 1:1 to 1:6. In another embodiment, a method for recovery of an oil from a porous medium includes adding quantum dots to foaming surfactants to enhance foam lamella stability under reservoir conditions and provide conformance and mobility control in porous media and hydraulic fractures.

公开(公告)号：US20230304907A1

公开(公告)日：2023-09-28

申请号：US18126168

申请日：2023-03-24

申请人： UNIVERSITY OF WYOMING

发明人： Mohammad PIRI ,  Yun XIE ,  Keerti Vardhan SHARMA ,  Van Si LE ,  Magda Ibrahim YOUSSIF ,  Alvinda Sri HANAMERTANI ,  Omar ELKHATIB ,  Kaustubh Shriram RANE

IPC分类号： G01N7/10 ,  G01N11/00 ,  B05B7/00 ,  B01F23/235 ,  E21B43/16

CPC分类号： G01N7/10 ,  G01N11/00 ,  B05B7/0037 ,  B01F23/235 ,  E21B43/164 ,  G01N2011/008

摘要： Embodiments of the present disclosure generally relate to apparatus and methods for foam generation, and to apparatus and methods for evaluation of foam systems. In an embodiment, a method of analyzing foam properties includes delivering a foaming composition and a gas to a housing at a pressure of 500 psi to 6,000 psi and a temperature of 35° C. to 150° C., the housing containing an unconsolidated porous media. The method further includes flowing the foaming composition and the gas through the housing, and forming a foam by an interaction of the foaming composition, the gas, and the unconsolidated porous media. The method further includes directing the foam from the housing to a visualization chamber, the visualization chamber in fluid communication with the housing, and measuring a foam characteristic via the visualization chamber. The characteristic may include foam half-life, pressure drop through the unconsolidated media, and/or apparent viscosity of the foam.

公开(公告)号：US20210363408A1

公开(公告)日：2021-11-25

申请号：US17324532

申请日：2021-05-19

申请人： University of Wyoming

发明人： Lamia GOUAL ,  Kaustubh Shriram RANE ,  Bingjun ZHANG

IPC分类号： C09K8/584 ,  E21B43/16 ,  E21B43/34

摘要： In one embodiment, a method for recovery of an oil from a porous medium comprises contacting the porous medium with an aqueous nanofluid, solubilizing oil from the porous medium via the nanoparticles, thereby forming a dispersion comprising the oil and the aqueous nanofluid, and collecting at least some of the dispersion. The aqueous nanofluid may contain a combination of amphiphilic quantum dots and hydrophilic quantum dots, in a continuous phase. At least 90% of the quantum dot nanoparticles may have an aspect ratio of from 1:1 to 1:6. The dispersion comprising the oil and the aqueous nanofluid may be stabilized via synergistic effects resulting from the combination of amphiphilic quantum dots and hydrophilic quantum dots. In another embodiment, a method for recovery of an oil from a porous medium whereby the quantum dots are added to foaming surfactants to enhance foam lamella stability under reservoir conditions and provide conformance and mobility control in porous media and hydraulic fractures.