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公开(公告)号：US10926227B2
公开(公告)日：2021-02-23
申请号：US16208301
申请日：2018-12-03
IPC分类号： B01D67/00 , B81C1/00 , C23C16/455 , B01D71/02
摘要： A method for fabricating calcite channels in a nanofluidic device is described. A porous membrane is attached to a substrate. Calcite is deposited in porous openings in the porous membrane attached to the substrate. A width of openings in the deposited calcite is in a range from 50 to 100 nanometers (nm). The porous membrane is etched to remove the porous membrane from the substrate to form a fabricated calcite channel structure. Each channel has a width in the range from 50 to 100 nm.
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公开(公告)号：US10920128B2
公开(公告)日：2021-02-16
申请号：US16686769
申请日：2019-11-18
摘要： An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 4000 parts-per-million (ppm) total dissolved solids (TDS) to about 8000 ppm TDS and a polymer having a concentration of 250 ppm to 750 ppm. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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公开(公告)号：US10761428B2
公开(公告)日：2020-09-01
申请号：US16114906
申请日：2018-08-28
IPC分类号： C23C16/455 , G03F7/075 , G03F7/40 , G03F7/20
摘要： A method for fabricating calcite channels in a nanofluidic device is described. A photoresist layer is coated onto a top surface of a silicon nitride (SiN) substrate. After coating the photoresist layer, the photoresist layer is scanned with an electron beam in a predefined pattern. The scanned photoresist is developed to expose portions of the top surface of the SiN substrate in the predefined pattern. Calcite is deposited in the predefined pattern using atomic layer deposition (ALD) using a calcite precursor gas. Using a solvent, a remaining portion of the photoresist layer is removed to expose the deposited calcite in the predefined pattern and on the top surface of the SiN substrate, where a width of the deposited calcite is in range from 50 to 100 nanometers (nm).
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44.发明申请公开(公告)号：US20200271563A1
公开(公告)日：2020-08-27
申请号：US16287255
申请日：2019-02-27
发明人： Quan Chen , Sultan Enezi , Ali Abdallah Al-Yousef
摘要： A core sample holder assembly for performing core flood experiments includes a first end cap having a first cylindrical body with a first central chamber and a first inner end that is ring shaped, and a second end cap having a second cylindrical body with a second central chamber and a second inner end that is ring shaped. Three flow lines are spaced elevationally apart, the three flow lines extending from a first outward end to a first inward facing surface of each end cap. A flexible sleeve circumscribes the first end cap and the second end cap. A test sample bore is defined by the first inner end, the second inner end, and an inner diameter surface of the flexible sleeve. A central axis extends through the first end cap, the second end cap, and the flexible sleeve, the first end cap, the second end cap, and the flexible sleeve being axially aligned.
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公开(公告)号：US20200171492A1
公开(公告)日：2020-06-04
申请号：US16208301
申请日：2018-12-03
摘要： A method for fabricating calcite channels in a nanofluidic device is described. A porous membrane is attached to a substrate. Calcite is deposited in porous openings in the porous membrane attached to the substrate. A width of openings in the deposited calcite is in a range from 50 to 100 nanometers (nm). The porous membrane is etched to remove the porous membrane from the substrate to form a fabricated calcite channel structure. Each channel has a width in the range from 50 to 100 nm.
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46.发明申请公开(公告)号：US20190234889A1
公开(公告)日：2019-08-01
申请号：US16374189
申请日：2019-04-03
IPC分类号： G01N23/046 , G01N1/28 , H01J37/147 , G01N33/24 , G01N23/225
CPC分类号： G01N23/046 , G01N1/28 , G01N23/225 , G01N33/24 , H01J37/1478 , H01J2237/049 , H01J2237/21 , H01J2237/226 , H01J2237/31749
摘要： A process for the preparation and imaging of a sample of rock from an oil and gas reservoir is provided. A sample of reservoir rock may be obtained, such as from a core sample obtained using a core sampling tool inserted in a wellbore extending into an oil and gas reservoir. A photoresist may be deposited on the surface of reservoir rock sample to form a homogenous layer. The photoresist-coated surface of the reservoir rock sample may be imaged using a focused ion beam (FIB). The photoresist protects the pores and other surface features of the rock from damage or implantation by the FIB ion beam and thus minimizes the curtain effect in the resulting images.
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47.发明申请公开(公告)号：US20190136118A1
公开(公告)日：2019-05-09
申请号：US16235569
申请日：2018-12-28
摘要： An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include sodium sulfate (Na2SO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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公开(公告)号：US10266752B2
公开(公告)日：2019-04-23
申请号：US16025787
申请日：2018-07-02
摘要： A method for increasing oil production in a carbonate reservoir by incorporating a saline solution injection including a saline soluble surfactant and a saline soluble polymer. The method provides for increased oil production as compared to conventional waterflooding techniques.
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49.发明申请公开(公告)号：US20190023974A1
公开(公告)日：2019-01-24
申请号：US16140062
申请日：2018-09-24
摘要： An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 4000 parts-per-million (ppm) total dissolved solids (TDS) to about 8000 ppm TDS, a polymer having a concentration of 250 ppm to 500 ppm, metal oxide nanoparticles of up to 0.1 weight (wt) %, and dissolved CO2. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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公开(公告)号：US10106726B2
公开(公告)日：2018-10-23
申请号：US15903952
申请日：2018-02-23
摘要： An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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