Determination of fluid-phase-specific petrophysical properties of geological core for oil, water and gas phases

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dc.contributor.assigneeRice University
dc.contributor.assigneeVinegar Technologies LLC
dc.contributor.publisherUnited States Patent and Trademark Office
dc.creatorVinegar, Eva
dc.creatorSinger, Philip M.
dc.creatorHirasaki, George J.
dc.creatorChen, Zeliang
dc.creatorWang, Xinglin
dc.creatorVinegar, Harold J.
dc.date.accessioned2024-04-04T17:24:29Z
dc.date.available2024-04-04T17:24:29Z
dc.date.filed2021-04-06
dc.date.issued2024-03-05
dc.description.abstractThe following invention is used for determining the relative permeability of a fluid in a rock for three different phases: water, oil, and gas, in both conventional and unconventional formations. The permeability of a phase describes how much it can flow in porous media given a pressure gradient and is useful in evaluating reservoir quality and productivity. The following invention is a method to determine the three-phase relative permeabilities in both conventional and unconventional formations using NMR restricted diffusion measurements on core with NMR-active nuclei, combined with centrifugation of the core. In addition, the tortuosity, pore size (surface-to-volume ratio), fluid-filled porosity, and permeability is determined for each of the three phases in a rock.
dc.digitization.specificationsThis patent information was downloaded from the US Patent and Trademark website (http://www.uspto.gov/) as image-PDFs. The PDFs were OCRed for access purposes2
dc.format.extent20
dc.identifier.patentIDUS11921069B1
dc.identifier.urihttps://hdl.handle.net/1911/115481
dc.language.isoeng
dc.titleDetermination of fluid-phase-specific petrophysical properties of geological core for oil, water and gas phases
dc.typeUtility patent
dc.type.dcmiText
dc.type.genrepatents
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