公开(公告)号：US12228531B1

公开(公告)日：2025-02-18

申请号：US18125757

申请日：2023-03-24

Applicant: Vinegar Technologies LLC ,  William Marsh Rice University

Inventor： Philip M. Singer ,  Yunke Liu ,  Xinglin Wang ,  George J. Hirasaki ,  Harold J. Vinegar

IPC: G01N24/08 ,  G01R33/50 ,  G01V3/32

Abstract: A 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.

公开(公告)号：US12216071B2

公开(公告)日：2025-02-04

申请号：US17142601

申请日：2021-01-06

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Hao Wang ,  Chengrong Wang ,  Amy C Clingenpeel ,  Kuangnan Qian

IPC: G01N24/08 ,  A01G33/00 ,  C11B1/10 ,  C12Q1/02 ,  C12Q1/06

Abstract: A method and system for direct quantification of the concentration of biomolecules in algal biomass. The biomolecules include lipids, proteins, and carbohydrates. An algae slurry is cultivated within a cultivation vessel, and algal biomass is harvested therefrom. A portion of biomass is analyzed using solvent-lipid analysis to extract lipids and nuclear magnetic resonance spectroscopy is used to quantify the biomolecular concentration of the biomass.

公开(公告)号：US20250029684A1

公开(公告)日：2025-01-23

申请号：US18757981

申请日：2024-06-28

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： WEN NIE ,  WENJIN NIU ,  QIU BAO ,  QIFAN TIAN ,  RUOXI LI ,  HUAJUN LIU ,  JING YANG ,  XIAOHAN ZHANG ,  JIE LIAN ,  LIDIAN GUO ,  CHENGYI LIU ,  CHANGWEI XU

IPC: G16C20/30 ,  G01N21/3563 ,  G01N24/08 ,  G16C20/20

Abstract: Disclosed is a microscopic comparison and experimental verification method for the wettability of similar surfactants on coal dust, comprising: collecting a coal sample on site from a mining area and analyzing the coal sample by infrared spectroscopy and nuclear magnetic resonance spectroscopy to obtain information on functional groups and carbon structure of coal molecules; S2: constructing a surfactant-coal molecule electrostatic interaction model and analyzing an orbital energy difference and an electrostatic potential difference between surfactant molecules and coal molecules, etc. S6. The invention provides a simple and effective idea for the selection of surfactants.

公开(公告)号：US20250020605A1

公开(公告)日：2025-01-16

申请号：US18712676

申请日：2021-11-26

Applicant: Johannes Gutenberg-Universität Mainz ,  CERN - European Organization for Nuclear Research ,  GSI Helmholtzzentrum für Schwerionenforschung GmbH

Inventor： Dmitry BUDKER ,  James EILLS ,  Magdalena KOWALSKA ,  Karolina KULESZ ,  John BLANCHARD

IPC: G01N24/08 ,  G01R33/28 ,  G01R33/44 ,  G01T1/20 ,  G01T1/202

Abstract: The present invention relates to a method and an apparatus (100) for investigating an object (10) by using nuclear magnetic resonance, the apparatus (100) comprising: —a magnetically shielded chamber (20) for magnetically shielding the object (10) from external static magnetic fields when being investigated: —a spin-manipulation unit (30), which is arranged, at least in parts, in the magnetically shielded chamber (20) and configured to manipulate spins of radioactive nuclei that are present in the object (10); and —at least one particle detector (40) which is configured to detect nuclear radiation emitted from the radioactive nuclei that are present in the object (10).

公开(公告)号：US20250004083A1

公开(公告)日：2025-01-02

申请号：US18554758

申请日：2022-04-01

Applicant: The Regents of the University of California

Inventor： Jia Guo

IPC: G01R33/561 ,  G01N24/08 ,  G01N33/483 ,  G01R33/563

Abstract: Techniques, systems and apparatus are described for magnetic resonance imaging. A method includes applying a radio frequency (RF) signal of a predetermined time duration towards a target, wherein the RF signal comprises a composite pulse that includes a velocity-selective pulse comprising RF pulses whose phase shift is modulated over the predetermined time duration, acquiring a magnetic resonance signal from the target resulting from the application of the RF signal, and generating an MRI image of the target from the magnetic resonance signal.

公开(公告)号：US20250003900A1

公开(公告)日：2025-01-02

申请号：US18703913

申请日：2022-10-27

Applicant: Massachusetts Institute of Technology

Inventor： Jongyoon Han ,  Laurie Boyer ,  Smitha Surendran Thamarath ,  Shu Hui Neo ,  Ching Ann Tee

IPC: G01N24/08 ,  C12N5/00 ,  G01R33/50

Abstract: Senescent cells can be detected using magnetic resonance relaxometry.

公开(公告)号：US12178891B2

公开(公告)日：2024-12-31

申请号：US16753875

申请日：2018-10-05

Applicant: University of Florida Research Foundation, Inc.

Inventor： Clifford Russell Bowers ,  Wenbo Zhao

IPC: A61K49/18 ,  G01N24/08 ,  G01R33/28 ,  G01R33/46

Abstract: Methods of and systems for making a hyperpolarized fluid are provided, which include exposing a fluid and parahydrogen to a catalyst. The hyperpolarized fluid can be introduced to a subject. The hyperpolarized fluid can be included in methods of imaging a subject. Also provided are methods that use the hyperpolarized fluids for detecting protein ligand interactions and for enhancing the NMR signals of biopolymers having chemically exchangeable protons.

公开(公告)号：US12164010B2

公开(公告)日：2024-12-10

申请号：US16575545

申请日：2019-09-19

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Hyman D. Chantz

IPC: G01R33/46 ,  A61B5/00 ,  G01N24/00 ,  G01N24/08 ,  G01R23/00 ,  G01R23/07 ,  G01R23/16 ,  G01R23/18 ,  G01R33/20 ,  G01R33/28 ,  G01R33/32 ,  G01R33/34 ,  G01R33/36 ,  G01R33/38 ,  G01R33/385 ,  G01R33/58 ,  G06T7/00

Abstract: Nuclear Magnetic Resonant Imaging (also called Magnetic Resonant Imaging or “MRI”) devices which are implantable, internal or insertable are provided. The disclosure describes ways to miniaturize, simplify, calibrate, cool, and increase the utility of MRI systems for structural investigative purposes, and for biological investigation and potential treatment. It teaches use of target objects of fixed size, shape and position for calibration and comparison to obtain accurate images. It further teaches cooling of objects under test by electrically conductive leads or electrically isolated leads; varying the magnetic field of the probe to move chemicals or ferrous metallic objects within the subject. The invention also teaches comparison of objects using review of the frequency components of a received signal rather than by a pictorial representation.

公开(公告)号：US12153004B1

公开(公告)日：2024-11-26

申请号：US18818596

申请日：2024-08-29

Applicant: Southwest Petroleum University ,  Sichuan Hengyi Petroleum Technology Services Co., Ltd ,  Shale Gas Research Institute, PetroChina Southwest Oil and Gas Field Company

Inventor： Xinyang He ,  Kun Zhang ,  Chengzao Jia ,  Yan Song ,  Hulin Niu ,  Jing Li ,  Yijia Wu ,  Jiayi Liu ,  Bo Li ,  Yiming Yang ,  Liang Xu ,  Yongyang Liu ,  Jia He ,  Jiajie Wu ,  Zhi Gao ,  Tian Tang ,  Cheng Yang ,  Lei Chen ,  Xuefei Yang ,  Fengli Han ,  Xueying Wang ,  Weishi Tang ,  Jingru Ruan ,  Hengfeng Gou ,  Lintao Li ,  Yipeng Liu ,  Ping Liu

IPC: G01N24/08 ,  G01N15/08

Abstract: A method for calculating a surface relaxation rate of a shale includes: a relaxation time T distribution curve and a pore throat radius r distribution curve are obtained through experiments; abscissas of the two distribution curves are standardized, and the abscissa of the relaxation time T distribution curve is expanded or shrunk to ensure an abscissa value corresponding to a maximum ordinate value in the transformed relaxation time T distribution curve is same as an abscissa value corresponding to a maximum ordinate value in the pore throat radius r distribution curve; straight lines with a number of N parallel to a y-axis of a combined curve graph including the two distribution curves are drawn and a ρ value corresponding to each straight line is calculated; and ρ value with the number of N are processed to obtain a final surface relaxation rate ρ′.

公开(公告)号：US20240383009A1

公开(公告)日：2024-11-21

申请号：US18790011

申请日：2024-07-31

Applicant: CD PROCESSING LTD.

Inventor： Daniel SHAW ,  James SAVILLE

IPC: B07C5/344 ,  B07C5/36 ,  G01N24/08

Abstract: A system and method for sorting copper-bearing ore to select portions having a target copper content. The system includes an analysis and selection station including first magnetic resonance analyzer measuring the input ore copper content and a controlled diverter to divert portions of the input ore to a collection path when the copper content meets or exceeds a predetermined cut-off value. The predetermined cut-off is adjusted by a controller in response to the first magnetic resonance analyzer. A second magnetic resonance analyzer measures the copper content of ore in a product path. That measurement is fed back to the controller to fine tune the adjusted cut-off value above, up or down, to optimize the yield of ore having the targeted copper content. The system may include a station for sizing the input ore, a station for sizing the output ore, and a station for sizing waste produced by the system.