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Patent Agency Ranking
11.发明申请公开(公告)号：US20200065620A1
公开(公告)日：2020-02-27
申请号：US16506891
申请日：2019-07-09
Applicant: PetroChina Company Limited
Inventor： Zhou Feng , Hongliang Wu , Ning Li , Kewen Wang , Peng Liu , Yusheng Li , Huafeng Wang , Binsen Xu
Abstract: A method and an apparatus for automatically recognizing an electrical imaging well logging facies, wherein the method comprises: acquiring historical data of electrical imaging well logging; pre-processing the historical data of the electrical imaging well logging to generate an electrical imaging well logging image covering a full hole; recognizing a typical imaging well logging facies in the electrical imaging well logging image covering the full hole, and determining the electrical imaging well logging image covering the full hole as a training sample in accordance with a category of the imaging well logging facies; constructing a deep learning model including an input layer, a plurality of hidden layers, and an output layer; training the deep learning model using the training sample to obtain a trained deep learning model; and recognizing the well logging facies of the electrical imaging well logging image of the well section to be recognized using the trained deep learning model.
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公开(公告)号：US11112527B2
公开(公告)日：2021-09-07
申请号：US16095432
申请日：2017-05-15
Applicant: PetroChina Company Limited
Inventor： Ning Li , Kewen Wang , Yujiang Shi , Hongliang Wu , Taiping Zhao , Qingfu Feng , Zhou Feng , Haitao Zhang , Baoding Zhu , Xiaoming Yang
Abstract: 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.
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13.发明申请公开(公告)号：US20200065606A1
公开(公告)日：2020-02-27
申请号：US16507270
申请日：2019-07-10
Applicant: PetroChina Company Limited
Inventor： Zhou Feng , Ning Li , Hongliang Wu , Kewen Wang , Peng Liu , Yusheng Li , Huafeng Wang , Chen Wang
Abstract: A method and an apparatus for automatically extracting image features of electrical imaging well logging, wherein the method comprises the steps of: acquiring historical data of electrical imaging well logging; pre-processing the historical data of the electrical imaging well logging to generate an electrical imaging well logging image covering a full hole; recognizing and marking a typical geological feature in the electrical imaging well logging image covering the full hole, obtaining a processed image, and determining the processed image as a training sample according to types of the geological features; constructing a deep learning model including an input layer, a plurality of hidden layers, and an output layer; training the deep learning model using the training sample; using the trained deep learning model, recognizing type of a geological feature of an electrical imaging well logging image of a well section to be recognized, and performing morphological optimization processing on the recognition result to obtain a feature optimization recognition result. The solution can automatically, quickly and accurately recognize the typical geological features in the electrical imaging well logging image.
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公开(公告)号：US10401311B2
公开(公告)日：2019-09-03
申请号：US15888809
申请日：2018-02-05
Applicant: PetroChina Company Limited
Inventor： Hongliang Wu , Ning Li , Changlin Lan , Zhou Feng , Qingfu Feng , Kewen Wang
IPC: G01N23/222 , G01N23/2204 , G01V5/10
Abstract: 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.
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公开(公告)号：US20180172608A1
公开(公告)日：2018-06-21
申请号：US15888809
申请日：2018-02-05
Applicant: PetroChina Company Limited
Inventor： Hongliang WU , Ning Li , Changlin Lan , Zhou Feng , Qingfu Feng , Kewen Wang
IPC: G01N23/222 , G01N23/2204
CPC classification number: G01N23/222 , G01N23/2204 , G01V5/101
Abstract: 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.
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