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公开(公告)号：US12117407B2
公开(公告)日：2024-10-15
申请号：US18166143
申请日：2023-02-08
Applicant: Saudi Arabian Oil Company
Inventor： Stacey M. Althaus , Jin-Hong Chen , John David Broyles , Mohammed Boudjatit
CPC classification number: G01N24/081 , G01N15/088
Abstract: Techniques for determining a geologic property of a rock sample include (i) measuring a mass of a processed rock sample that includes a solid matrix and a fluid entrained within the solid matrix; (ii) measuring, using nuclear magnetic resonance (NMR), a volume of the fluid entrained within the solid matrix; (iii) measuring, using a gas porosimeter, a volume of the solid matrix of the processed rock sample; (iv) measuring, with a mercury immersion porosimeter, a bulk volume of the processed rock sample; and (v) determining, based at least on the measured volume of the fluid, the measured volume of the solid matrix, and the measured bulk volume, at least one of a bulk density, a grain density, or a porosity of the processed rock sample.
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公开(公告)号：US12078583B2
公开(公告)日：2024-09-03
申请号：US17055072
申请日：2019-01-17
Inventor： Qiangyi Li , Christopher P. Eppig , Derrick P. Green
CPC classification number: G01N15/088 , G01N1/28 , G01N24/08 , G01R33/448
Abstract: A method of determining the identity of a petroleum coke sample including obtaining a nuclear magnetic resonance (NMR) measurement of the sample, determining a relaxation decay value of a fluid in the sample from the NMR measurement, comparing the relaxation decay value to relaxation decay values of known petroleum coke materials in a reference group to determine whether the petroleum coke is one of the known materials.
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3.发明授权公开(公告)号：US11965845B2
公开(公告)日：2024-04-23
申请号：US17860570
申请日：2022-07-08
Applicant: Institute of Geology and Geophysics, Chinese Academy of Sciences , Northeast Petroleum University
Inventor： Likuan Zhang , Xiaorong Luo , Jianzhao Yan , Yuhong Lei , Ming Cheng , Naigui Liu
CPC classification number: G01N24/081 , G01N15/088 , G01N24/082 , G01R33/448 , G01V3/32 , G01V3/38
Abstract: The present invention provides a device and a method for measuring fluid saturation in nuclear magnetic resonance (NMR) on-line displacement, the method comprising: measuring a nuclear magnetic resonance (NMR) T2 spectrum under the dead volume filling of the on-line displacement system as displacing phase fluid and the core to be measured as saturated nuclear magnetic detection phase fluid to generate a calibrated T2 spectrum; measuring a nuclear magnetic resonance (NMR) T2 spectrum of a process in which the core to be measured is converted from a saturated displaced phase fluid into a displacing phase fluid to generate a displacement process T2 spectrum; generating the fluid saturation of the on-line displacement system in real time according to the generated calibrated T2 spectrum and the displacement process T2 spectrum. The present invention achieves the purpose of improving measurement precision of fluid saturation in the on-line displacement process.
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公开(公告)号：US11852576B2
公开(公告)日：2023-12-26
申请号：US17649473
申请日：2022-01-31
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Jun Gao , Marwah Mufid AlSinan , Hyung Tae Kwak
CPC classification number: G01N15/088 , E21B49/02 , G01N15/08 , G01N24/081 , G01N33/24 , G01V3/32
Abstract: A method for determining the pore size distribution in a reservoir, including the steps: drilling a core sample out of the reservoir, determining a porosity distribution along the core sample, obtaining T2-distributions at different saturation levels of the core sample with formation brine, performing time domain subtraction on the T2-distributions to obtain T2-distributions at all saturation levels, determining the pore throat size distribution along the core sample, determining first porosities from the T2-distributions that correspond to second porosities of the pore throat size distribution for each saturation level, determining T2-distributions at the first porosities from the T2-distributions, determining pore throat sizes at the second porosities from the pore throat size distributions, plotting the pore throat sizes as function of the relaxation times T2 to obtain the surface relaxation, and determining the pore size distribution of the reservoir.
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5.发明授权公开(公告)号：US11781962B2
公开(公告)日：2023-10-10
申请号：US18124703
申请日：2023-03-22
Applicant: China University of Mining and Technology
Inventor： Yang Wang , Jie Xiang , Shangbin Chen , Tong Zhang , Qingshun Cao
IPC: G01B13/06 , G01N15/08 , G01N24/08 , G01N33/24 , G01N1/28 , G01N23/223 , G01N23/201
CPC classification number: G01N15/088 , G01N1/286 , G01N23/201 , G01N23/223 , G01N24/081 , G01N33/24
Abstract: Disclosed is a characterization method of closed pores and connectivity of coal measure composite reservoirs, including collecting samples of coal seams and shales reservoirs, carrying out low-field NMR experiments and NMR freeze-thaw experiments on plunger samples and crushed samples with different particle sizes to obtain cumulative pore volume distribution and differential pore size distribution of the crushed samples, comparing crushed samples with plunger samples for optimal crushed particle sizes, and preliminarily determining a distribution range of closed pores; carrying out SAXS experiments on crushed samples to obtain size distribution and volume of total pores of 1-100 nanometers; calculating pore volume of total pores and closed pore volume in composite reservoirs by low-field NMR experiments results; carrying out non-steady overburden permeability experiments and variable factors on plunger samples of coal seams, shales and tight sandstone to characterize the connectivity under influence of pores development and lithologic combinations.
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Patent Agency Ranking
公开(公告)号：US11714078B1
公开(公告)日：2023-08-01
申请号：US16438312
申请日：2019-06-11
Applicant: Battelle Memorial Institute
Inventor： Timothy C. Johnson , Christopher E. Strickland , Yue Zhu , Jonathan N. Thomle , James C. Stegen
IPC: G01N33/24 , G01L19/00 , G01K13/02 , G01N15/08 , G01N15/00 , G01R27/22 , G01L19/08 , G01K13/12 , G01N30/00
CPC classification number: G01N33/246 , G01K13/02 , G01K13/12 , G01L19/0092 , G01L19/083 , G01N15/088 , G01R27/22 , G01K13/026 , G01N2015/0034 , G01N2015/0833 , G01N2030/0095 , G01V2210/661
Abstract: Systems for determining GW/SW interaction are provided. The systems can include: a sensing assembly comprising sensors for pressure, fluid conductivity, temperature, and transfer resistance; processing circuitry operatively coupled to the sensing assembly and configured to receive data from the sensing assembly and process the data to provide a GW/SW interaction, wherein the data includes pressure, fluid conductivity, temperature, transfer resistance data. Methods for determining GW/SW interaction are provided. The methods can include: receiving real time data including pressure, fluid conductivity, temperature, and transfer resistance; from at least some of the data received simulating the SW/GW interaction; and fitting the real time data with the simulated data to provide actual SW/GW interaction.
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7.发明公开公开(公告)号：US20230146357A1
公开(公告)日：2023-05-11
申请号：US18050172
申请日：2022-10-27
Applicant: XI'AN SHIYOU UNIVERSITY
Inventor： Wei Dang , Xiaoliang Wei
CPC classification number: G01N15/088 , G01N7/04 , G01N33/241 , G06F30/28 , G01N2015/0866
Abstract: A method and device for obtaining microscopic occurrence characteristics of oil stored in a shale, where the microscopic occurrence characteristics include the adsorbed oil film thicknesses in the shale and the oil distribution in the shale. The method includes four steps. The first step is an experiment step in which a N-Hexane vapor adsorption experiment is performed on a sample made from a shale. The second step is a first obtaining step for calculating and obtaining the adsorbed oil film thicknesses in the shale. The third step is a first calculating step and the fourth step is a second obtaining step. They aim to obtain the oil distribution in the shale.
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公开(公告)号：US20230145554A1
公开(公告)日：2023-05-11
申请号：US17754504
申请日：2019-10-21
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Li Qian , Alberto Borrego Lebrato , David Munoz Navarro
CPC classification number: G01N15/088 , G06T7/001
Abstract: Example implementations relate to substrate porosity determination. Some examples refer to a substrate porosity determination comprising an image capture device a controller to obtain a reference image by the image capture device; obtain a measurement image after a printing operation has been performed on a substrate located over the image capture device; compare the reference image and the measurement image—determine whether the substrate is porous based on the comparison; and determine a print parameter based on the determination of whether the substrate is porous.
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9.发明申请公开(公告)号：US20180348105A1
公开(公告)日：2018-12-06
申请号：US15775391
申请日：2016-12-02
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Ping GUO , Shuai WU , Wanbo ZHANG , Yisheng HU , Yijian CHEN , Huimin ZHANG , Zhouhua WANG , Jianfen DU , Huang LIU , Hongmei REN
CPC classification number: G01N1/36 , G01N15/082 , G01N15/088 , G01N33/241 , G01N2001/2873 , G01N2001/366
Abstract: A direct method for manufacturing a large model fractured core and maintaining original oil-water saturation, including the following steps: (1) determining the volume V, porosity φ, permeability K, oil saturation So, water saturation Sw and the like of a fractured core to be manufactured; (2) preparing simulated oil, and determining the used oil mass mo=Vo×ρo; (3) under the circumstance of no consideration of oil saturation, acquiring the mass of the used water, cement and quartz sand; (4) while establishing oil saturation, acquiring the mass mw of water for manufacturing the core as mw=a−Vo×ρw; (5) mixing oil, water and an emulsifier evenly to prepare an oil-in-water emulsion; (6) adding cement and quartz sand into the emulsion and stirring evenly to obtain cement slurry; (7) when a cement sample is in a semi-solidified state, cutting the cement sample with a steel wire; and (8) solidifying the cement sample to the end.
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10.发明申请公开(公告)号：US20180209889A1
公开(公告)日：2018-07-26
申请号：US15935151
申请日：2018-03-26
Applicant: Schlumberger Technology Corporation
Inventor： Maxim Andreevich Chertov , Roberto Suarez-Rivera , Dean M. Willberg , Sidney J. Green
CPC classification number: G01N15/082 , G01N7/00 , G01N15/08 , G01N15/0806 , G01N15/0826 , G01N15/088 , G01N33/24
Abstract: A method for characterizing properties of a sample that employs a test apparatus including an isolated sample cell and pressure sensor where the isolated sample cell is loaded with the sample and gaseous test fluid to perform a number of different tests to derive properties of the sample. The tests can be performed over different parameters, such as different applied pressures of the test fluid to derive parameters related to apparent gas permeability of the sample as a function of applied pressure, different gaseous test fluids to characterize dependence of permeability of the sample on mean free molecular path or pressure, with both adsorptive and non-adsorptive test gases to characterize at least one property related to adsorptive interaction between the adsorptive test gas and the sample, and with samples of varying saturation levels to derive a measure of at least one property of the subsamples at corresponding saturation levels.
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