公开(公告)号：US20240230616A1

公开(公告)日：2024-07-11

申请号：US18611653

申请日：2024-03-20

Applicant: ZHEJIANG UNIVERSITY

Inventor： Liangtong ZHAN ,  Qimeng GUO ,  Qingyi MU ,  Shunyu WANG ,  Yunmin CHEN

IPC: G01N33/24 ,  G01N21/17 ,  G01N21/33 ,  G01N21/64 ,  G01N27/22

CPC classification number: G01N33/241 ,  G01N21/33 ,  G01N21/6402 ,  G01N21/645 ,  G01N27/221 ,  G01N2021/1753 ,  G01N2021/1755 ,  G01N2201/02 ,  G01N2201/0612

Abstract: The disclosure discloses a cone penetrometer for detecting multi-pollutants and the corresponding method based on laser induced fluorescence (LIF) and time domain reflectometry (TDR). The cone penetrometer includes two main modules: the TDR module mainly composes of a PEEK insulating rod, two gold-coated stainless steel probes and a coaxial cable; the LIF module mainly composes of endoscope image sensor, alumina glass lens, an ultraviolet LED with a 280 nm-wavelength, and an ultraviolet LED with a 325 nm-wavelength. Detection is performed to obtain the soil dielectric constant for characterizing the volumetric water content, electrical conductivity for the content of ionic pollutants, fluorescence intensity at 325 nm-wavelength for the content of polycyclic aromatic hydrocarbons, fluorescence intensity at 280 nm-wavelength for the content of humic acid, and soil images for soil types. The disclosure is easy to carry, able to quickly identify multi-pollutants, and is suitable for in-situ deep detection in solid waste landfill sites.

公开(公告)号：US20240230615A1

公开(公告)日：2024-07-11

申请号：US18561226

申请日：2022-05-09

Applicant: IFP Energies nouvelles

Inventor： Maria-Fernanda ROMERO-SARMIENTO ,  Herman RAVELOJAONA ,  Daniel PILLOT ,  Sebastien ROHAIS

IPC: G01N33/24

CPC classification number: G01N33/241

Abstract: The invention concerns a method of characterizing a polymer (Pol) in a porous medium (Mil), wherein at least the following steps are carried out:



a) heating a porous medium sample (Mil), in an inert atmosphere, and continuously measuring a representative quantity of hydrocarbon compounds, a representative quantity of carbon monoxide and/or a representative quantity of carbon dioxide released,
b) heating a residue of said sample in an oxidizing atmosphere, and measuring a representative quantity of carbon monoxide and a representative quantity of carbon dioxide released,
c) comparing at least the quantities measured in steps a) and b) with reference parameters of a first polymer database (Pol),
d) determining the presence or the absence of a polymer (Pol) in porous medium (Mil) from the measurement comparison made in step c) and/or quantifying polymer (Pol) in porous medium (Mil).

公开(公告)号：US11965734B2

公开(公告)日：2024-04-23

申请号：US17061550

申请日：2020-10-01

Applicant: Northeast Petroleum University

Inventor： Shansi Tian ,  Bo Liu ,  Xiaofei Fu ,  Fang Zeng ,  Xu Dong ,  Yifei Gao ,  Zhenjie Luo

IPC: G01B11/30 ,  E21B49/02 ,  G01B9/02 ,  G01N1/04 ,  G01N1/28 ,  G01N1/32 ,  G01N1/36 ,  G01N15/08 ,  G01N33/24 ,  G01Q60/24

CPC classification number: G01B11/30 ,  E21B49/02 ,  G01B9/02085 ,  G01N1/04 ,  G01N1/286 ,  G01N1/32 ,  G01N1/36 ,  G01N15/088 ,  G01N33/24 ,  G01N33/241 ,  G01Q60/24 ,  G01B2210/52

Abstract: The present invention relates to a method and system for quantitatively evaluating surface roughness of an organic pore of kerogen in shale. The method includes: making a shale sample; applying a circle of silver-painted conductive tape on the edge of the shale sample to obtain a processed sample; conducting image scanning on the processed sample to obtain a scanned image; determining a kerogen area according to the scanned image; determining an organic pore area according to the kerogen area; carrying out gridding treatment on the organic pore area to obtain multiple grid cells; adopting double integral calculation on each of the grid cells to obtain the areas of the multiple grid cells; summing each of the areas to obtain the surface area of the organic pore; and evaluating surface roughness of the organic pore according to the surface area of the pore.

公开(公告)号：US20240118224A1

公开(公告)日：2024-04-11

申请号：US17937309

申请日：2022-09-30

Applicant: ARAMCO SERVICES COMPANY

Inventor： Jin-Hong Chen ,  Stacey M. Althaus ,  Mohammed Boudjatit ,  Houzhu Zhang

IPC: G01N24/08 ,  E21B7/04 ,  E21B47/022 ,  G01N33/24

CPC classification number: G01N24/081 ,  E21B7/04 ,  E21B47/022 ,  G01N33/241 ,  G01N33/246 ,  E21B2200/20

Abstract: A method and system for determining a mass of an absorbed gas and a mass of a pore gas in a sample using NMR spectroscopy is provided. The method includes acquiring a baseline NMR spectrum of a pressure cell containing the sample, saturating the sample with a gas, acquiring a saturated NMR spectrum and determining a differential NMR spectrum of the sample by subtracting the baseline NMR spectrum from the saturated NMR spectrum. The method also includes separating the differential NMR spectrum into an absorbed gas NMR spectrum to determine an absorbed gas NMR signal and a pore gas NMR spectrum to determine a pore gas NMR signal by performing a spectral deconvolution. The method further includes acquiring a normalization NMR spectrum of the pressure cell containing a gas to determine a gas calibration NMR signal and determining the mass of the absorbed gas and pore gas.

公开(公告)号：US20240110906A1

公开(公告)日：2024-04-04

申请号：US18551229

申请日：2022-03-14

Applicant: IFP Energies nouvelles

Inventor： David SEBAG ,  Isabelle KOWALEWSKI ,  Violaine LAMOUREUX-VAR ,  Daniel PILLOT ,  Herman RAVELOJAONA

IPC: G01N33/24 ,  G01N31/12

CPC classification number: G01N33/241 ,  G01N31/12

Abstract: The invention relates to a method of characterizing and of quantifying carbon from a superficial deposit, wherein a sample of the deposit is subjected to heating in an inert atmosphere, the sample residue is subjected to heating in an oxidizing atmosphere, and quantities of HC, CO and CO2 released during heating, from which standard parameters TOC and MinC, and a ratio between mineral carbon and total carbon of the sample are determined, are measured. If the ratio is non-zero, the organic carbon content is equal to the sum of TOC and of a percentage of TOC ranging between 4 and 12%, and the mineral carbon content is equal to MinC minus this percentage of TOC. If the ratio is zero, the mineral carbon content is zero and the organic carbon content is equal to the sum of TOC and MinC.

公开(公告)号：US11940437B2

公开(公告)日：2024-03-26

申请号：US16638014

申请日：2018-08-07

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Yildiray Cinar ,  Tony R. Pham ,  Naseem J. Al-Dawood

IPC: E21B49/00 ,  G01N13/00 ,  G01N33/24

CPC classification number: G01N33/241 ,  G01N13/00 ,  E21B49/00

Abstract: A method of determining waterflood residual oil saturation includes testing, in a laboratory multispeed centrifuge test, a reservoir core sample to obtain a set of average water saturation (Sw,avg) and imbibition capillary pressure (Pci) data points, applying a best-fit smoothing function to the data points to obtain a best-fit average saturation curve, converting the best-fit average saturation curve to an outlet-face saturation curve, applying a best-fit straight line to the outlet-face saturation curve associated with a substantially constant outlet water saturation and changing imbibition capillary pressure, and determining a waterflood residual oil saturation (Sorw) of the core sample. The waterflood residual oil saturation is associated with a point on the outlet-face saturation curve where the best-fit straight line deviates from the outlet-face saturation curve.

公开(公告)号：US11906691B2

公开(公告)日：2024-02-20

申请号：US17050141

申请日：2019-04-22

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Paul R. Craddock ,  Laurent Mosse ,  Jeffrey R. Miles ,  Andrew E. Pomerantz

IPC: G01V5/10 ,  E21B49/00 ,  G01N21/35 ,  G01N33/24 ,  G01N21/3563

CPC classification number: G01V5/10 ,  E21B49/00 ,  G01N21/3563 ,  G01N33/241

Abstract: Embodiments of the present disclosure are directed towards a method for improving neutron interpretations in a subsurface formation. Embodiments may include estimating mineral concentrations and kerogen concentrations at one or more depths in the subsurface formation and determining kerogen properties at one or more depths in the subsurface formation. Embodiments may further include calculating mineral properties at one or more depths in the subsurface formation and calculating a neutron-based log response to a rock matrix based upon, at least in part, the kerogen properties and the mineral properties at one or more depths in the subsurface formation by subtracting.

公开(公告)号：US11867027B2

公开(公告)日：2024-01-09

申请号：US16410690

申请日：2019-05-13

Applicant: Saudi Arabian Oil Company

Inventor： Nasser Mubarak Al-Hajri ,  Abdullah Abdulaziz AlGhamdi ,  Fahad Muhammed Al-Meshal

IPC: G01N33/24 ,  E21B37/00 ,  G06N20/10 ,  C01F11/18 ,  G06F18/214 ,  G06F18/2411 ,  G06N7/01

CPC classification number: E21B37/00 ,  C01F11/18 ,  G01N33/241 ,  G06F18/2155 ,  G06F18/2411 ,  G06N7/01 ,  G06N20/10 ,  E21B2200/22

Abstract: Methods for prediction and inhibition of calcium carbonate scale in hydrocarbon wells using machine learning include extracting training data including parameters from aqueous samples. Each aqueous sample is collected from a respective hydrocarbon well. The training data is classified in accordance with hydrocarbon production conditions of each hydrocarbon well. The classified training data is labeled in accordance with whether calcium carbonate scale has formed in each aqueous sample within a particular time period. A feature vector is determined from the labeled training data based on the parameters extracted from each aqueous sample. The feature vector is indicative of whether the respective hydrocarbon well contains calcium carbonate scale. A trained machine learning model is generated, wherein the machine learning model is trained based on the feature vector, to predict a number of the hydrocarbon wells containing calcium carbonate scale within the particular time period.

公开(公告)号：US20240003838A1

公开(公告)日：2024-01-04

申请号：US17854391

申请日：2022-06-30

Applicant: Saudi Arabian Oil Company

Inventor： Stacey M. Althaus ,  Jin-Hong Chen

IPC: G01N24/08 ,  G01N33/24

CPC classification number: G01N24/081 ,  G01N33/241

Abstract: Techniques for determining at least one rock property of a core sample include measuring a first nuclear magnetic resonance (NMR) spectrum signal of a test fluid enclosed at a particular pressure in a cylinder of an NMR pressure cell; measuring a second NMR spectrum signal of a core sample immersed in the test fluid; removing a background NMR spectrum signal from the first and second NMR spectrum signals to determine a bulk test fluid NMR spectrum signal and a combined test fluid and core sample NMR spectrum signal; determining a porosity of the core sample based on the bulk test fluid NMR spectrum signal, the combined test fluid and core sample NMR spectrum signal, a dimension of the core sample, and a dimension of the cylinder; and determining a fluid intake capacity of the core sample based on the porosity and the dimension of the core sample.

公开(公告)号：US11846623B1

公开(公告)日：2023-12-19

申请号：US18336966

申请日：2023-06-17

Applicant: Southwest Petroleum University

Inventor： Yu Xiong ,  MeiHua Chen ,  LingHong Wang ,  MeiJuan Guo ,  HaiTao Hong ,  MingQiu Li ,  XiuQing Li ,  Rui Zhang

IPC: G01N33/24

CPC classification number: G01N33/241

Abstract: A core holder and a prediction method for starting pressure gradient of shale oil based on the core hold are provided. The core holder includes an inlet plug, an outlet plug, a core accommodating cavity disposed between the inlet plug and the outlet plug and used for accommodating the shale oil, a rubber gasket disposed between the outlet plug and the core accommodating cavity, and a microinjector including a microinjector needle portion that passes through the outlet plug and the rubber gasket in sequence to be in contact with the shale oil in the core accommodating cavity. The core holder and the method can solve problems that movable oil volume of a low-porosity, low-permeability and small-volume rock sample and a shale rock sample cannot be accurately measured, and that a movable scale and a starting pressure gradient of the shale oil cannot be measured.