Patents by Inventor Qingfu Feng
Qingfu Feng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240109895Abstract: An oxaspiro substituted pyrrolopyrazole derivative, an intermediate thereof, and a preparation method therefor.Type: ApplicationFiled: December 29, 2021Publication date: April 4, 2024Applicants: SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.Inventors: Zhenya ZENG, Chao KAN, Qingfu GAO, Yixiao FENG, Bo WU, Xingsong ZHANG, Youhong MA, Kejun SUN
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Patent number: 11313223Abstract: A gamma ray spectrum unfolding method for elemental capture spectroscopy logging and a device therefor including the steps of first preprocessing the data obtained from an elemental capture spectrometry instrument; constructing a primary element group and an auxiliary element group according to the degree of interactions among the elements via theoretical analysis and numerical calculation of spectrum profiles, characteristic peak channels, and backgrounds of different elements; unfolding by using the least square method based on the construction of the primary element group and the auxiliary element group; and finally reconstructing the spectrum based on theory according to the yield of each element obtained by unfolding with the least square method, and comparing the measured gamma ray spectrum with the reconstructed gamma ray spectrum for error control, thereby improving the spectrum unfolding precision.Type: GrantFiled: December 10, 2018Date of Patent: April 26, 2022Assignee: PETROCHINA COMPANY LIMITEDInventors: Hongliang Wu, Ning Li, Zhou Feng, Changlin Lan, Tao Lv, Kewen Wang, Qingfu Feng
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Publication number: 20210355822Abstract: A gamma ray spectrum unfolding method for elemental capture spectroscopy logging and a device therefor including the steps of first preprocessing the data obtained from an elemental capture spectrometry instrument; constructing a primary element group and an auxiliary element group according to the degree of interactions among the elements via theoretical analysis and numerical calculation of spectrum profiles, characteristic peak channels, and backgrounds of different elements; unfolding by using the least square method based on the construction of the primary element group and the auxiliary element group; and finally reconstructing the spectrum based on theory according to the yield of each element obtained by unfolding with the least square method, and comparing the measured gamma ray spectrum with the reconstructed gamma ray spectrum for error control, thereby improving the spectrum unfolding precision.Type: ApplicationFiled: December 10, 2018Publication date: November 18, 2021Applicant: PETROCHINA COMPANY LIMITEDInventors: Hongliang WU, Ning LI, Zhou FENG, Changlin LAN, Tao LV, Kewen WANG, Qingfu FENG
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Patent number: 11112527Abstract: The present application provides a method and a system for determining a saturation exponent of a heterogeneous carbonate reservoir. The method comprises: dividing a target reservoir into at least two reservoir types in accordance with a predetermined rule; obtaining a correspondence relationship between a saturation exponent and a bound water saturation in each of the reservoir types; determining the reservoir type to which a to-be-measured core belongs in accordance with the predetermined rule; obtaining a bound water saturation of the to-be-measured core; and calculating the saturation exponent of the to-be-measured core according to the bound water saturation of the to-be-measured core on the basis of the correspondence relationship of the reservoir type to which the to-be-measured core belongs.Type: GrantFiled: May 15, 2017Date of Patent: September 7, 2021Assignee: PetroChina Company LimitedInventors: Ning Li, Kewen Wang, Yujiang Shi, Hongliang Wu, Taiping Zhao, Qingfu Feng, Zhou Feng, Haitao Zhang, Baoding Zhu, Xiaoming Yang
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Patent number: 11086034Abstract: The embodiments of the present disclosure disclose a method and an apparatus for determining the permeability of the reservoir. The method comprises: acquiring logging data corresponding to the two zones at least; determining the permeability of a specified zone in the two zones at least based on logging data corresponding to the specified zone, wherein the specified zone represents any one of the two zones at least; setting weight values corresponding to the at least two zones respectively; and determining the permeability of the reservoir based on the weight values and the permeability respectively corresponding to the two zones at least. The technical solutions provided by the embodiments of the present disclosure can improve the accuracy of the determined permeability of the reservoir.Type: GrantFiled: October 12, 2018Date of Patent: August 10, 2021Assignee: PetroChina Company LimitedInventors: Ning Li, Hongliang Wu, Zhou Feng, Peng Liu, Kewen Wang, Qingfu Feng, Yusheng Li
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Patent number: 11010507Abstract: The present invention provides a stratum component optimization determination method and device, which fall within the technical field of oil-gas exploration well logging. The method comprises: establishing a stratum rock component model according to core analysis data and geological conditions of a stratum to be detected, and determining a well logging curve determined by a participation model; determining a well logging response equation expression corresponding to the well logging curve determined by the participation model; parsing, recording and storing the well logging response equation expression, establishing a target function of an optimization problem, and solving the target function through an iteration algorithm to determine an optimal component content of the stratum to be detected.Type: GrantFiled: October 10, 2016Date of Patent: May 18, 2021Assignee: Petrochina Company LimitedInventors: Zhou Feng, Ning Li, Hongliang Wu, Huafeng Wang, Qingfu Feng, Kewen Wang
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Patent number: 10962679Abstract: Disclosed is a method of acquiring the rock component content in a stratum, the method comprising: on the basis of acquired element capture spectroscopy logging data, performing normalization processing on each element yield in the stratum rock components; on the basis of an element yield curve obtained from the normalization processing and a pre-established stratum rock interpretation model, establishing a logging curve response equation set; and utilizing the established logging curve response equation set and an optimization algorithm, calculating the content of a rock component in a stratum. The method and device can directly process element yield data of element capture spectroscopy logging, and can improve the accuracy of calculating the rock component in a stratum.Type: GrantFiled: March 30, 2018Date of Patent: March 30, 2021Assignee: PETROCHINA COMPANY LIMITEDInventors: Hongliang Wu, Zhou Feng, Ning Li, Kewen Wang, Qingfu Feng, Gong Zhang
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Patent number: 10641088Abstract: The present invention relates to the technical field of well logging interpretation. The present invention provides a method for determining the karst development degree of a reservoir, a computer readable storage medium and a device, and pertains to the technical field of well logging interpretation, the method comprising: extracting vertical denudation pore features and horizontal denudation pore features from electrical imaging logging image data of a undetermined reservoir, and counting well logging feature parameters; determining karst belts of the undetermined reservoir and classifying the karst development degree according to the vertical denudation pore features, the horizontal denudation pore features and the well logging feature parameters; and determining the available reservoir development degree of the undetermined reservoir according to the karst belts and the result of the classified karst development degree.Type: GrantFiled: May 25, 2018Date of Patent: May 5, 2020Assignee: PETROCHINA COMPANY LIMITEDInventors: Ning Li, Hongliang Wu, Zhou Feng, Qingfu Feng, Kewen Wang, Xiaotao Zhang, Gong Zhang
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Patent number: 10401311Abstract: The present invention provides a method and a device for measuring a formation elemental capture gamma ray spectrum, pertaining to the field of oil-gas exploration and well logging technologies. The method comprises: performing moderation on neutrons emitted from a neutron source according to a neutron capture cross section of a test sample; and adjusting a relative location of the test sample with respect to the neutron source, so that a standard capture gamma ray spectrum of the test sample is measured and obtained at a location where a thermal neutron flux reacting with atomic nucleuses of the test sample reaches a first predetermined value. The present invention performs moderation on a neutron source according to neutron capture cross sections of different test samples to measure and obtain elemental capture gamma ray spectra of the test samples, thereby obtaining various formation elemental capture gamma ray spectra with higher accuracy.Type: GrantFiled: February 5, 2018Date of Patent: September 3, 2019Assignee: PetroChina Company LimitedInventors: Hongliang Wu, Ning Li, Changlin Lan, Zhou Feng, Qingfu Feng, Kewen Wang
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Publication number: 20190137648Abstract: The present application provides a method and a system for determining a saturation exponent of a heterogeneous carbonate reservoir. The method comprises: dividing a target reservoir into at least two reservoir types in accordance with a predetermined rule; obtaining a correspondence relationship between a saturation exponent and a bound water saturation in each of the reservoir types; determining the reservoir type to which a to-be-measured core belongs in accordance with the predetermined rule; obtaining a bound water saturation of the to-be-measured core; and calculating the saturation exponent of the to-be-measured core according to the bound water saturation of the to-be-measured core on the basis of the correspondence relationship of the reservoir type to which the to-be-measured core belongs.Type: ApplicationFiled: May 15, 2017Publication date: May 9, 2019Applicant: PetroChina Company LimitedInventors: Ning LI, Kewen WANG, Yujiang SHI, Hongliang WU, Taiping ZHAO, Qingfu FENG, Zhou FENG, Haitao ZHANG, Baoding ZHU, Xiaoming YANG
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Publication number: 20190056519Abstract: The embodiments of the present disclosure disclose a method and an apparatus for determining the permeability of the reservoir. The method comprises: acquiring logging data corresponding to the two zones at least; determining the permeability of a specified zone in the two zones at least based on logging data corresponding to the specified zone, wherein the specified zone represents any one of the two zones at least; setting weight values corresponding to the at least two zones respectively; and determining the permeability of the reservoir based on the weight values and the permeability respectively corresponding to the two zones at least. The technical solutions provided by the embodiments of the present disclosure can improve the accuracy of the determined permeability of the reservoir.Type: ApplicationFiled: October 12, 2018Publication date: February 21, 2019Inventors: Ning LI, Hongliang WU, Zhou FENG, Peng LIU, Kewen WANG, Qingfu FENG, Yusheng LI
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Publication number: 20180274364Abstract: The present invention relates to the technical field of well logging interpretation. The present invention provides a method for determining the karst development degree of a reservoir, a computer readable storage medium and a device, and pertains to the technical field of well logging interpretation, the method comprising: extracting vertical denudation pore features and horizontal denudation pore features from electrical imaging logging image data of a undetermined reservoir, and counting well logging feature parameters; determining karst belts of the undetermined reservoir and classifying the karst development degree according to the vertical denudation pore features, the horizontal denudation pore features and the well logging feature parameters; and determining the available reservoir development degree of the undetermined reservoir according to the karst belts and the result of the classified karst development degree.Type: ApplicationFiled: May 25, 2018Publication date: September 27, 2018Inventors: Ning Li, Hongliang Wu, Zhou Feng, Qingfu Feng, Kewen Wang, Xiaotao Zhang, Gong Zhang
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Publication number: 20180246999Abstract: The present invention provides a stratum component optimization determination method and device, which fall within the technical field of oil-gas exploration well logging. The method comprises: establishing a stratum rock component model according to core analysis data and geological conditions of a stratum to be detected, and determining a well logging curve determined by a participation model; determining a well logging response equation expression corresponding to the well logging curve determined by the participation model; parsing, recording and storing the well logging response equation expression, establishing a target function of an optimization problem, and solving the target function through an iteration algorithm to determine an optimal component content of the stratum to be detected.Type: ApplicationFiled: October 10, 2016Publication date: August 30, 2018Inventors: Zhou Feng, Ning Li, Hongliang Wu, Huafeng Wang, Qingfu Feng, Kewen Wang
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Publication number: 20180246254Abstract: Disclosed is a method of acquiring the rock component content in a stratum, the method comprising: on the basis of acquired element capture spectroscopy logging data, performing normalization processing on each element yield in the stratum rock components; on the basis of an element yield curve obtained from the normalization processing and a pre-established stratum rock interpretation model, establishing a logging curve response equation set; and utilizing the established logging curve response equation set and an optimization algorithm, calculating the content of a rock component in a stratum. The method and device can directly process element yield data of element capture spectroscopy logging, and can improve the accuracy of calculating the rock component in a stratum.Type: ApplicationFiled: March 30, 2018Publication date: August 30, 2018Inventors: Hongliang Wu, Zhou Feng, Ning Li, Kewen Wang, Qingfu Feng, Gong Zhang
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Publication number: 20180172608Abstract: The present invention provides a method and a device for measuring a formation elemental capture gamma ray spectrum, pertaining to the field of oil-gas exploration and well logging technologies. The method comprises: performing moderation on neutrons emitted from a neutron source according to a neutron capture cross section of a test sample; and adjusting a relative location of the test sample with respect to the neutron source, so that a standard capture gamma ray spectrum of the test sample is measured and obtained at a location where a thermal neutron flux reacting with atomic nucleuses of the test sample reaches a first predetermined value. The present invention performs moderation on a neutron source according to neutron capture cross sections of different test samples to measure and obtain elemental capture gamma ray spectra of the test samples, thereby obtaining various formation elemental capture gamma ray spectra with higher accuracy.Type: ApplicationFiled: February 5, 2018Publication date: June 21, 2018Applicant: PetroChina Company LimitedInventors: Hongliang WU, Ning Li, Changlin Lan, Zhou Feng, Qingfu Feng, Kewen Wang
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Patent number: 8805661Abstract: A quantitative calculation method for oil (gas) saturation of fractured reservoir during petroleum exploitation is provided. The method comprises: obtaining the fracture porosity and calculating resistivity index at different depth of fractured reservoir with known full diameter core data and imaging logging data; establishing the percolation network model of matrix and fracture combination with known pore structure feature; calibrating the numerical simulation results obtained from percolation network model based on the data of core experiment and sealed coring analysis results, then obtaining the relationship between the resistivity index (I) and water saturation (Sw) at different fracture porosity; calculating the oil (gas) saturation of fractured reservoir through selecting an interpolation function. The oil (gas) saturation calculated with said method is 0.67, however 0.49 with common method in some fractured reservoir. The accuracy is improved by more than 0.18 in the studied fractured reservoir.Type: GrantFiled: March 31, 2010Date of Patent: August 12, 2014Assignee: PetroChina Company LimitedInventors: Ning Li, Kewen Wang, Dexin Qiao, Qingfu Feng, Hongliang Wu
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Publication number: 20120109603Abstract: A quantitative calculation method for oil (gas) saturation of fractured reservoir during petroleum exploitation is provided. The method comprises: obtaining the fracture porosity and calculating resistivity index at different depth of fractured reservoir with known full diameter core data and imaging logging data; establishing the percolation network model of matrix and fracture combination with known pore structure feature; calibrating the numerical simulation results obtained from percolation network model based on the data of core experiment and sealed coring analysis results, then obtaining the relationship between the resistivity index (I) and water saturation (Sw) at different fracture porosity; calculating the oil (gas) saturation of fractured reservoir through selecting an interpolation function. The oil (gas) saturation calculated with said method is 0.67, however 0.49 with common method in some fractured reservoir. The accuracy is improved by more than 0.18 in the studied fractured reservoir.Type: ApplicationFiled: March 31, 2010Publication date: May 3, 2012Inventors: Ning Li, Kewen Wang, Dexin Qiao, Qingfu Feng, Hongliang Wu