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公开(公告)号：US20210025858A1
公开(公告)日：2021-01-28
申请号：US16938801
申请日：2020-07-24
Applicant: Saudi Arabian Oil Company
Inventor： Hooisweng Ow , Gawain Thomas , Sehoon Chang , Wei Wang
Abstract: Systems and methods for analyzing groundwater samples with multiple organic tracer species from a petroleum containing reservoir include obtaining the sample, isolating an aqueous fraction of the groundwater sample, separating the aqueous fraction into a plurality of components, where each component corresponds to a different one of the organic tracer species, combining each of the separated components with at least one lanthanide element to form a plurality of component solutions, where a ratio of the at least one lanthanide element to the separated component in each component solution is 5:1 or greater, and analyzing each component solution to determine a relative amount of each organic tracer species in the groundwater sample.
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公开(公告)号：US20200290879A1
公开(公告)日：2020-09-17
申请号：US16818632
申请日：2020-03-13
Applicant: Saudi Arabian Oil Company
Inventor： Sehoon Chang , Wei Wang
IPC: C01B32/198 , C09K8/584
Abstract: Synthesizing Janus material including forming a lamellar phase having water layers and organic layers, incorporating nanosheets and a functional agent into the lamellar phase, and attaching the functional agent to the nanosheets in the lamellar phase to form Janus nanosheets.
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公开(公告)号：US20190196057A1
公开(公告)日：2019-06-27
申请号：US16248576
申请日：2019-01-15
Applicant: Saudi Arabian Oil Company
Inventor： Sehoon Chang , Wei Wang , Shannon L. Eichmann
CPC classification number: G01V15/00 , E21B47/1015 , E21B49/08 , G01N21/658
Abstract: The present disclosure describes methods and systems for detecting a tracer in a hydrocarbon reservoir. One method includes injecting a tracer at a first location in a reservoir, wherein the tracer mixes with subsurface fluid in the reservoir; collecting fluid samples at a second location in the reservoir; mixing a magnetic surface-enhanced Raman scattering (SERS) particle with the fluid samples; applying a magnetic field to the mixed fluid samples; and analyzing the fluid samples to detect a presence of the tracer in the fluid samples.
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公开(公告)号：US10261216B2
公开(公告)日：2019-04-16
申请号：US16163813
申请日：2018-10-18
Applicant: Saudi Arabian Oil Company
Inventor： Sehoon Chang , Wei Wang , Shannon L. Eichmann
Abstract: The present disclosure describes methods and systems for detecting a tracer in a hydrocarbon reservoir. One method includes injecting a tracer at a first location in a reservoir, wherein the tracer mixes with subsurface fluid in the reservoir; collecting fluid samples at a second location in the reservoir; mixing a magnetic surface-enhanced Raman scattering (SERS) particle with the fluid samples; applying a magnetic field to the mixed fluid samples; and analyzing the fluid samples to detect a presence of the tracer in the fluid samples.
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公开(公告)号：US20190049624A1
公开(公告)日：2019-02-14
申请号：US16163813
申请日：2018-10-18
Applicant: Saudi Arabian Oil Company
Inventor： Sehoon Chang , Wei Wang , Shannon L. Eichmann
Abstract: The present disclosure describes methods and systems for detecting a tracer in a hydrocarbon reservoir. One method includes injecting a tracer at a first location in a reservoir, wherein the tracer mixes with subsurface fluid in the reservoir; collecting fluid samples at a second location in the reservoir; mixing a magnetic surface-enhanced Raman scattering (SERS) particle with the fluid samples; applying a magnetic field to the mixed fluid samples; and analyzing the fluid samples to detect a presence of the tracer in the fluid samples.
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Patent Agency Ranking
公开(公告)号：US12253467B2
公开(公告)日：2025-03-18
申请号：US17643983
申请日：2021-12-13
Applicant: Saudi Arabian Oil Company
Inventor： Sehoon Chang , Gawain Thomas , Wei Wang , Hooisweng Ow
Abstract: Optical properties of a tracer in water are measured at varying concentrations. A reference curve is built based on the measured optical properties at varying concentrations. An emulsion is mixed with the tracer. The emulsion is demulsified into an oil component and an aqueous component. Optical properties of one of the components are measured. A partition coefficient is determined based on the measured optical properties of a demulsified component and the reference curve.
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公开(公告)号：US12228512B2
公开(公告)日：2025-02-18
申请号：US16931143
申请日：2020-07-16
Applicant: Saudi Arabian Oil Company
Inventor： Hooisweng Ow , Sehoon Chang , Jason R. Cox , Bora Yoon , Wei Wang
Abstract: Devices for chemical analysis include a first separation element formed on the substrate, the first separation element having a wicking surface that separates water from hydrocarbons in a fluid sample, a hydrophobic barrier at least partially surrounding the first separation element, a second separation element fluidically connected the first separation element, the second separation element configured to trap salts and organic matter present in the fluid sample, and a detection element fluidically connected to the second separation element, the detection element having a surface that binds with one or more analytes that may be present in the fluid sample and thereby emits a signal that is capable of being optically detected by a detector. Methods include providing such a device for chemical analysis, placing the fluid sample on the first separation element, and detecting the signal emitted by the detection element.
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公开(公告)号：US12168929B2
公开(公告)日：2024-12-17
申请号：US18182235
申请日：2023-03-10
Applicant: Saudi Arabian Oil Company
Inventor： Bora Yoon , Hooisweng Ow , Sehoon Chang , Wei Wang , Rena Shi
IPC: E21B49/08 , C09K8/60 , E21B41/00 , C09K103/00
Abstract: A method, system, and taggants (tracers) for quantifying zonal flow in a multi-lateral well having a wellbore with a first lateral and second lateral. The technique includes flowing first produced fluid from a formation via the first lateral into production tubing providing a first taggant through a first dosing tubing to the first lateral, and flowing second produced fluid from the formation via the second lateral into the production tubing and providing a second taggant through a second dosing tubing to the second lateral. A produced stream having the first produced fluid and the second produced fluid flows uphole through the production tubing and discharges from the wellbore. The produced stream may be analyzed to measure an amount of the first taggant in the produced stream and an amount of the second taggant in the produced stream.
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公开(公告)号：US20240392181A1
公开(公告)日：2024-11-28
申请号：US18324391
申请日：2023-05-26
Applicant: Saudi Arabian Oil Company
Inventor： Shannon Eichmann , Hooisweng Ow , Sehoon Chang , Wei Wang
Abstract: A coated proppant including a particulate substrate, a first polymeric layer surrounding the particulate substrate, and a second polymeric layer surrounding the first polymeric layer. The first polymeric layer may include chemical additives. The second polymeric layer may include chemical tracers. The chemical tracers include barcoded degradable polymers, fluorescent dyes, quantum dot nanoparticles, superparamagnetic nanoparticles, up-conversion phosphors, long-persistent phosphors, time-resolved fluorescence resonance energy transfer polymer-nanoparticles (TR-FRET), or combinations thereof.
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公开(公告)号：US12140582B2
公开(公告)日：2024-11-12
申请号：US17522445
申请日：2021-11-09
Applicant: Saudi Arabian Oil Company
Inventor： Wei Wang , Sehoon Chang , Hooisweng Ow
Abstract: Compositions and methods for determining the origin location of subterranean rock samples. In some implementations, the compositions include a nanoparticle tag that includes a natural polysaccharide, a fluorescent dye, and superparamagnetic nanoparticles. In some implementations, a method of determining the origin location of a subterranean rock sample includes mixing the nanoparticle tag into a fluid, flowing the fluid into a subterranean formation, recovering subterranean rock samples from the formation, separating tagged rock samples from untagged rock samples using a magnet, and determining the origin location by analyzing a fluorescent signal of the nanoparticle tag.
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