Method of determining solid and liquid components in sedimentary rocks using NMR relaxation

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dc.contributor.assigneeRice Universityen_US
dc.contributor.assigneeVinegar Technologies LLCen_US
dc.contributor.publisherUnited States Patent and Trademark Officeen_US
dc.creatorSinger, Philip M.en_US
dc.creatorLiu, Yunkeen_US
dc.creatorWang, Xinglinen_US
dc.creatorHirasaki, George J.en_US
dc.creatorVinegar, Harold J.en_US
dc.date.accessioned2025-03-04T18:06:09Zen_US
dc.date.available2025-03-04T18:06:09Zen_US
dc.date.filed2023-03-24en_US
dc.date.issued2025-02-18en_US
dc.description.abstractA method for separating liquid-like (T2e) from solid-like (T2G) 1H NMR transverse relaxation times in porous media uses novel pulse sequences together with a 1H NMR spectrometer optimized for geological core samples. The method is applied to obtain 1D T2 distributions and 2D T1-T2 maps in organic-rich chalks for quantification of liquid-like signal (micropore fluids, meso-macropore fluids, fluids dissolved in organic matter, and clay-bound water) and solid-like signal (kerogen, bitumen, and clay hydroxyls). The novel pulse sequences comprise a solid-echo, which detects more solid-like signal than an FID. The method is used for fluid typing in micro/meso-macro pores, clay mineral identification, determination of kerogen content, and quantification of solvent-extracted bitumen versus bitumen expelled from kerogen due to swelling from dissolved hydrocarbons. The method is used to quantify the asphaltene, resin, aromatic, and/or saturate content of bitumen in the rock.en_US
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 purposes.en_US
dc.format.extent49en_US
dc.identifier.patentIDUS12228531B1en_US
dc.identifier.urihttps://hdl.handle.net/1911/118280en_US
dc.language.isoengen_US
dc.titleMethod of determining solid and liquid components in sedimentary rocks using NMR relaxationen_US
dc.typeUtility patenten_US
dc.type.dcmiTexten_US
dc.type.genrepatentsen_US
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