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公开(公告)号：US10739269B2
公开(公告)日：2020-08-11
申请号：US16164011
申请日：2018-10-18
申请人： Sankaran Murugesan , Radhika Suresh , Valery N. Khabashesku , Qusai Darugar , Stephen Mark Heath
发明人： Sankaran Murugesan , Radhika Suresh , Valery N. Khabashesku , Qusai Darugar , Stephen Mark Heath
摘要： A method of analyzing a well sample for a well treatment additive includes contacting the sample with functionalized metallic nanoparticles that contain metallic nanoparticles functionalized with a functional group including a cyano group, a thiol group, a carboxyl group, an amino group, a boronic acid group, an aza group, an ether group, a hydroxyl group, or a combination including at least one of the foregoing; irradiating the sample contacted with the functionalized metallic nanoparticles with electromagnetic radiation at a selected energy level; measuring a Raman spectrum emitted from the sample; and determining presence, type or concentration of the well treatment additive in the sample from the Raman spectrum.
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公开(公告)号：US20200124534A1
公开(公告)日：2020-04-23
申请号：US16164011
申请日：2018-10-18
申请人： Sankaran Murugesan , Radhika Suresh , Valery N. Khabashesku , Qusai Darugar , Stephen Mark Heath
发明人： Sankaran Murugesan , Radhika Suresh , Valery N. Khabashesku , Qusai Darugar , Stephen Mark Heath
摘要： A method of analyzing a well sample for a well treatment additive includes contacting the sample with functionalized metallic nanoparticles that contain metallic nanoparticles functionalized with a functional group including a cyano group, a thiol group, a carboxyl group, an amino group, a boronic acid group, an aza group, an ether group, a hydroxyl group, or a combination including at least one of the foregoing; irradiating the sample contacted with the functionalized metallic nanoparticles with electromagnetic radiation at a selected energy level; measuring a Raman spectrum emitted from the sample; and determining presence, type or concentration of the well treatment additive in the sample from the Raman spectrum.
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公开(公告)号：US10908092B2
公开(公告)日：2021-02-02
申请号：US16157574
申请日：2018-10-11
摘要： A cyanide-functionalized gold nanoparticle. A method of making cyanide-functionalized gold nanoparticles includes forming an aqueous reaction mixture comprising a gold precursor and glycine, keeping the reaction mixture at about 18° C. to about 50° C. for at least 6 days to provide formation of the cyanide-functionalized gold nanoparticles, and isolating the cyanide-functionalized gold nanoparticles from the reaction mixture. A method of analyzing a sample, comprising contacting cyanide-functionalized gold nanoparticles with the sample and performing an analytical method on the sample. A sensor comprises cyanide-functionalized gold nanoparticles.
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4.发明授权公开(公告)号：US10209193B2
公开(公告)日：2019-02-19
申请号：US15143886
申请日：2016-05-02
IPC分类号： G01N21/65
摘要： A method and apparatus for estimating a concentration of chemicals in a fluid flowing in a fluid passage is disclosed. A sample of the fluid is placed on a substrate comprising a first layer of carbon nanotubes and a second layer of metal nanowires. An energy source radiates the fluid sample with electromagnetic radiation at a selected energy level, and a detector measures an energy level of radiation emitted from the fluid sample in response to the electromagnetic radiation. A processor determines a Raman spectrum of the fluid sample from the energy level of the emitted radiation and estimates the concentration of a selected chemical in the fluid sample based on the Raman spectrum.
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公开(公告)号：US09958394B2
公开(公告)日：2018-05-01
申请号：US15677813
申请日：2017-08-15
申请人： Sankaran Murugesan , Radhika Suresh , Darryl N. Ventura , Bradley G. Harrell , Valery N. Khabashesku , Qusai A. Darugar
发明人： Sankaran Murugesan , Radhika Suresh , Darryl N. Ventura , Bradley G. Harrell , Valery N. Khabashesku , Qusai A. Darugar
CPC分类号： G01N21/65 , C10G29/00 , C10G2300/202 , C10G2300/4075 , G01J3/02 , G01N21/658 , G01N33/2835
摘要： A system and method for estimating a concentration of monoethanolamine (MEA) in a fluid. A substrate for supporting a sample of the fluid during testing includes a carbon nanotube mat layer, a silver nanowire layer disposed on the carbon nanotube mat layer, and a chemical enhancer layer disposed on the silver nanowire layer. A sample of the fluid is placed on the substrate, and the fluid sample is radiated with electromagnetic radiation at a selected energy level. A detector measures a Raman spectrum emitted from the sample in response to the electromagnetic radiation. A processor estimates the concentration of MEA in the sample from the Raman spectrum and adds a corrosion inhibitor to the fluid in an amount based on the estimated concentration of MEA to reduce the concentration of MEA in the fluid.
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6.发明申请公开(公告)号：US20180067054A1
公开(公告)日：2018-03-08
申请号：US15698007
申请日：2017-09-07
IPC分类号： G01N21/65
CPC分类号： G01N21/658 , G01N2201/127 , G01N2201/12746
摘要： A method of analyzing a selected refinery chemical at a low concentration comprises contacting a sample with functionalized metallic nanoparticles that contain metallic nanoparticles functionalized with a functional group comprising a cyano group, a thiol group, a carboxyl group, an amino group, a boronic acid group, an aza group, an ether group, a hydroxyl group, or a combination comprising at least one of the foregoing; radiating the sample contacted with the functionalized metallic nanoparticles with electromagnetic radiation at a selected energy level; measuring a Raman spectrum emitted from the sample; and determining the presence or a concentration of a selected refinery chemical in the sample from the Raman spectrum.
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7.发明申请公开(公告)号：US20170315061A1
公开(公告)日：2017-11-02
申请号：US15143886
申请日：2016-05-02
IPC分类号： G01N21/65
CPC分类号： G01N21/658
摘要： A method and apparatus for estimating a concentration of chemicals in a fluid flowing in a fluid passage is disclosed. A sample of the fluid is placed on a substrate comprising a first layer of carbon nanotubes and a second layer of metal nanowires. An energy source radiates the fluid sample with electromagnetic radiation at a selected energy level, and a detector measures an energy level of radiation emitted from the fluid sample in response to the electromagnetic radiation. A processor determines a Raman spectrum of the fluid sample from the energy level of the emitted radiation and estimates the concentration of a selected chemical in the fluid sample based on the Raman spectrum.
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8.发明申请公开(公告)号：US20180246039A1
公开(公告)日：2018-08-30
申请号：US15968506
申请日：2018-05-01
申请人： Sankaran Murugesan , Radhika Suresh , Darryl N. Ventura , Bradley G. Harrell , Valery N. Khabashesku , Qusai A. Darugar
发明人： Sankaran Murugesan , Radhika Suresh , Darryl N. Ventura , Bradley G. Harrell , Valery N. Khabashesku , Qusai A. Darugar
CPC分类号： G01N21/65 , C10G29/00 , C10G2300/202 , C10G2300/4075 , G01J3/02 , G01N21/658 , G01N33/2835
摘要： A system and method for estimating a concentration of monoethanolamine (MEA) in a fluid. A substrate for supporting a sample of the fluid during testing includes a carbon nanotube mat layer, a silver nanowire layer disposed on the carbon nanotube mat layer, and a chemical enhancer layer disposed on the silver nanowire layer. A sample of the fluid is placed on the substrate, and the fluid sample is radiated with electromagnetic radiation at a selected energy level. A detector measures a Raman spectrum emitted from the sample in response to the electromagnetic radiation. A processor estimates the concentration of MEA in the sample from the Raman spectrum and adds a corrosion inhibitor to the fluid in an amount based on the estimated concentration of MEA to reduce the concentration of MEA in the fluid.
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9.发明授权公开(公告)号：US10962481B2
公开(公告)日：2021-03-30
申请号：US15698007
申请日：2017-09-07
摘要： A method of analyzing a selected refinery chemical at a low concentration comprises contacting a sample with functionalized metallic nanoparticles that contain metallic nanoparticles functionalized with a functional group comprising a cyano group, a thiol group, a carboxyl group, an amino group, a boronic acid group, an aza group, an ether group, a hydroxyl group, or a combination comprising at least one of the foregoing; radiating the sample contacted with the functionalized metallic nanoparticles with electromagnetic radiation at a selected energy level; measuring a Raman spectrum emitted from the sample; and determining the presence or a concentration of a selected refinery chemical in the sample from the Raman spectrum.
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10.发明授权公开(公告)号：US10247675B2
公开(公告)日：2019-04-02
申请号：US15968506
申请日：2018-05-01
申请人： Sankaran Murugesan , Radhika Suresh , Darryl N. Ventura , Bradley G. Harrell , Valery N. Khabashesku , Qusai A. Darugar
发明人： Sankaran Murugesan , Radhika Suresh , Darryl N. Ventura , Bradley G. Harrell , Valery N. Khabashesku , Qusai A. Darugar
摘要： A system and method for estimating a concentration of monoethanolamine (MEA) in a fluid. A substrate for supporting a sample of the fluid during testing includes a carbon nanotube mat layer, a silver nanowire layer disposed on the carbon nanotube mat layer, and a chemical enhancer layer disposed on the silver nanowire layer. A sample of the fluid is placed on the substrate, and the fluid sample is radiated with electromagnetic radiation at a selected energy level. A detector measures a Raman spectrum emitted from the sample in response to the electromagnetic radiation. A processor estimates the concentration of MEA in the sample from the Raman spectrum and adds a corrosion inhibitor to the fluid in an amount based on the estimated concentration of MEA to reduce the concentration of MEA in the fluid.
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