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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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2.发明授权公开(公告)号：US11003952B2
公开(公告)日：2021-05-11
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：US20180246999A1
公开(公告)日：2018-08-30
申请号：US15749290
申请日：2016-10-10
Applicant: PetroChina Company Limited
Inventor： Zhou Feng , Ning Li , Hongliang Wu , Huafeng Wang , Qingfu Feng , Kewen Wang
CPC classification number: G06F17/5009 , E21B41/0092 , E21B49/00 , E21B49/02 , G01V99/00 , G06F17/50
Abstract: 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. By establishing the stratum rock component model, determining corresponding well logging response equation, and parsing through an expression parsing method and recording and storing the well logging response equation expression, and then, establishing the target function of the optimization problem, and obtaining the optimal component content of the stratum to be detected through the iteration algorithm, the present invention can not only optimizes the self-defined well logging response equation expression of the user, but achieves a high processing precision.
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公开(公告)号：US20180246254A1
公开(公告)日：2018-08-30
申请号：US15942356
申请日：2018-03-30
Applicant: PetroChina Company Limited
Inventor： Hongliang Wu , Zhou Feng , Ning Li , Kewen Wang , Qingfu Feng , Gong Zhang
CPC classification number: G01V99/005 , E21B49/00 , E21B49/02 , E21B49/08 , G01V5/101
Abstract: 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.
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5.发明授权公开(公告)号：US11313223B2
公开(公告)日：2022-04-26
申请号：US16470539
申请日：2018-12-10
Applicant: PETROCHINA COMPANY LIMITED
Inventor： Hongliang Wu , Ning Li , Zhou Feng , Changlin Lan , Tao Lv , Kewen Wang , Qingfu Feng
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11010629B2
公开(公告)日：2021-05-18
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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7.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：US11086034B2
公开(公告)日：2021-08-10
申请号：US16159052
申请日：2018-10-12
Applicant: PetroChina Company Limited
Inventor： Ning Li , Hongliang Wu , Zhou Feng , Peng Liu , Kewen Wang , Qingfu Feng , Yusheng Li
IPC: G01V1/30 , G01V3/20 , G01V11/00 , E21B49/00 , G01V1/50 , G16Z99/00 , G01N15/08 , G01V3/38 , G01V5/04
Abstract: 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.
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公开(公告)号：US11010507B2
公开(公告)日：2021-05-18
申请号：US15749290
申请日：2016-10-10
Applicant: PetroChina Company Limited
Inventor： Zhou Feng , Ning Li , Hongliang Wu , Huafeng Wang , Qingfu Feng , Kewen Wang
Abstract: 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. By establishing the stratum rock component model, determining corresponding well logging response equation, and parsing through an expression parsing method and recording and storing the well logging response equation expression, and then, establishing the target function of the optimization problem, and obtaining the optimal component content of the stratum to be detected through the iteration algorithm, the present invention can not only optimizes the self-defined well logging response equation expression of the user, but achieves a high processing precision.
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公开(公告)号：US10962679B2
公开(公告)日：2021-03-30
申请号：US15942356
申请日：2018-03-30
Applicant: PetroChina Company Limited
Inventor： Hongliang Wu , Zhou Feng , Ning Li , Kewen Wang , Qingfu Feng , Gong Zhang
Abstract: 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.
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