Patents by Inventor Anatoly I. Baumstein
Anatoly I. Baumstein 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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Patent number: 11662493Abstract: A method for enhancing properties of geophysical data with deep learning networks. Geophysical data may be acquired by positioning a source of sound waves at a chosen shot location, and measuring back-scattered energy generated by the source using receivers placed at selected locations. For example, seismic data may be collected using towed streamer acquisition in order to derive subsurface properties or to form images of the subsurface. However, towed streamer data may be deficient in one or more properties (e.g., at low frequencies). To compensate for the deficiencies, another survey (such as an Ocean Bottom Nodes (OBN) survey) may be sparsely acquired in order to train a neural network. The trained neural network may then be used to compensate for the towed streamer deficient properties, such as by using the trained neural network to extend the towed streamer data to the low frequencies.Type: GrantFiled: December 17, 2020Date of Patent: May 30, 2023Assignee: ExxonMobil Technology and Engineering ComanyInventors: Anatoly I. Baumstein, Mehdi Aharchaou, Rongrong Lu, Junzhe Sun
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Patent number: 11340366Abstract: Iterative methods for inversion of seismic data to update a physical property model are disclosed. Such methods may comprise iteratively updating the model until a first predetermined resolution is achieved, using full wavefield inversion of the seismic data up to a first frequency threshold and assuming the seismic data is free of attenuation effects; extracting geobodies from the updated model; obtaining a Q model using the geobodies; and updating the physical property model using an inversion process, wherein the Q model is incorporated into the inversion process. These steps may be repeated until a second predetermined resolution of the physical property model is achieved, wherein the first frequency threshold is progressively increased in each repetition. The Q model may be updated with seismic data at all available frequencies to obtain a full-band Q model; and the physical property model may be updated using full-band migration and the full-band Q model.Type: GrantFiled: September 16, 2019Date of Patent: May 24, 2022Assignee: ExxonMobil Upstream Research CompanyInventors: Anatoly I. Baumstein, Gboyega Ayeni, Carey M. Marcinkovich, Jaewoo Park, Sirui Tan, Peter Traynin
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Publication number: 20210318458Abstract: A method for enhancing properties of geophysical data with deep learning networks. Geophysical data may be acquired by positioning a source of sound waves at a chosen shot location, and measuring back-scattered energy generated by the source using receivers placed at selected locations. For example, seismic data may be collected using towed streamer acquisition in order to derive subsurface properties or to form images of the subsurface. However, towed streamer data may be deficient in one or more properties (e.g., at low frequencies). To compensate for the deficiencies, another survey (such as an Ocean Bottom Nodes (OBN) survey) may be sparsely acquired in order to train a neural network. The trained neural network may then be used to compensate for the towed streamer deficient properties, such as by using the trained neural network to extend the towed streamer data to the low frequencies.Type: ApplicationFiled: December 17, 2020Publication date: October 14, 2021Inventors: Anatoly I. Baumstein, Mehdi Aharchaou, Rongrong Lu, Junzhe Sun
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Publication number: 20210041589Abstract: Seismic data processing may include computing the travel time shift between two seismic signals or the depth shift between two seismic images. In Full Waveform Inversion (FWI), the travel time difference between an observed trace and a simulated trace may be computed such that the two traces match after the travel time shift is applied to the observed trace. The travel time shift may be computed based on a constrained optimization that maximizes the windowed cross-correlation between the two seismic traces by constraining the time derivative of the travel time shift to be less than a constant while maximizing the windowed cross-correlation. Further, the travel time shift may be computed during the model line search in FWI by computing a plurality of travel time shifts where a first travel time shift is dependent on the observed trace and a second travel time shift is independent of the observed trace.Type: ApplicationFiled: May 6, 2020Publication date: February 11, 2021Inventors: Hong Zhao, Valeriy Brytik, Anatoly I. Baumstein, Yaxun Tang, Sirui Tan
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Patent number: 10739480Abstract: A computer-implemented method for updating subsurface models including: using an offset continuation approach to update the model, and at each stage defining a new objective function where a maximum offset for each stage is set, wherein the approach includes, performing a first stage iterative full wavefield inversion with near offset data, as the maximum offset, to obtain velocity and density or impedance models, performing subsequent stages of iterative full wavefield inversion, each generating updated models, relative to a previous stage, wherein the subsequent stages include incrementally expanding the maximum offset until ending at a full offset, wherein a last of the stages yields finally updated models, the subsequent stages use the updated models as starting models, and the full wavefield inversions include constraining scales of the velocity model updates at each stage of inversion as a function of velocity resolution; and using the finally updated models to prospect for hydrocarbons.Type: GrantFiled: February 12, 2018Date of Patent: August 11, 2020Assignee: ExxonMobil Upstream Research CompanyInventors: Volkan Akcelik, Anatoly I. Baumstein, Valeriy V. Brytik, Sunwoong Lee, Yaxun Tang
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Patent number: 10698126Abstract: A computer-implemented method for updating a physical properties model of a subsurface region in an iterative inversion of seismic data using a gradient of a cost function that compares the seismic data to model-simulated data, said method comprising: obtaining a contrast model of a subsurface physical parameter that is sensitive to data dynamics and a kinematic model of a subsurface physical parameter; determining a gradient of a cost function using the contrast model and the kinematic model, wherein the cost function compares seismic data to model-simulated data; updating the kinematic model using a search direction derived from the gradient; adapting the contrast model according to an update to the kinematic model performed in the updating step; iteratively repeating the determining, updating, and adapting steps until a predetermined stopping criteria is reached, and generating a subsurface image from a finally updated kinematic model; and using the subsurface image to prospect for hydrocarbons.Type: GrantFiled: June 6, 2017Date of Patent: June 30, 2020Assignee: ExxonMobil Upstream Research CompanyInventors: Yaxun Tang, Sunwoong Lee, Anatoly I Baumstein, Volkan Akcelik
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Publication number: 20200124752Abstract: Iterative methods for inversion of seismic data to update a physical property model are disclosed. Such methods may comprise iteratively updating the model until a first predetermined resolution is achieved, using full wavefield inversion of the seismic data up to a first frequency threshold and assuming the seismic data is free of attenuation effects; extracting geobodies from the updated model; obtaining a Q model using the geobodies; and updating the physical property model using an inversion process, wherein the Q model is incorporated into the inversion process. These steps may be repeated until a second predetermined resolution of the physical property model is achieved, wherein the first frequency threshold is progressively increased in each repetition. The Q model may be updated with seismic data at all available frequencies to obtain a full-band Q model; and the physical property model may be updated using full-band migration and the full-band Q model.Type: ApplicationFiled: September 16, 2019Publication date: April 23, 2020Inventors: Anatoly I. Baumstein, Gboyega Ayeni, Carey M. Marcinkovich, Jaewoo Park, Sirui Tan, Peter Traynin
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Patent number: 10520619Abstract: A method, including: obtaining a seismic dataset that is separated into subsets according to predetermined subsurface reflection angle ranges; performing, with a computer, an acoustic full wavefield inversion process on each of the subsets, respectively, to invert for density and generate respective density models; generating acoustic impedances for each of the subsets, as a function of reflection angle, using the respective density models; and transforming, using a computer, the acoustic impedances for each of the subsets into reflectivity sections, wherein the transforming includes normalizing the reflectivity sections by their respective bandwidth.Type: GrantFiled: August 30, 2016Date of Patent: December 31, 2019Assignee: ExxonMobil Upstream Research CompanyInventors: Di Yang, Reeshidev Bansal, Spyridon K. Lazaratos, Jia Yan, Anatoly I. Baumstein
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Patent number: 10459096Abstract: A method for iteratively inverting seismic data to jointly infer a model for at least P-wave velocity and attenuation parameters of the subsurface, the method including: jointly inverting the P-wave velocity and attenuation parameters with an iterative visco-acoustic full wavefield inversion process, wherein the iterative visco-acoustic full wavefield inversion process includes computing a gradient of an objective function, the objective function measuring a misfit between all or part of the seismic data and corresponding model-simulated seismic data; for each of the P-wave velocity and attenuation parameters, computing a search direction in model space from the gradient; determining line search step sizes ? and ? for the search directions for the P-wave velocity and attenuation parameters, respectively, wherein a ratio of the step sizes is a function of the P-wave velocity parameter; and using the step sizes ? and ? and the search directions for each of the P-wave velocity and attenuation parameters, computiType: GrantFiled: June 6, 2017Date of Patent: October 29, 2019Assignee: ExxonMobil Upstream Research CompanyInventors: Sirui Tan, Yaxun Tang, Anatoly I. Baumstein, Gboyega Ayeni, Tetyana Vdovina, Thomas A. Dickens
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Patent number: 10338244Abstract: A method, including performing, with a computer, up/down separation of geophysical data, which produces an approximate up-going wavefield and an approximate down-going wavefield; creating an areal source based at least in part on the down-going wavefield; and performing, with a computer, a full wavefield inversion process with the areal source, and an objective function measuring a misfit between modeled up-going wavefields and recorded up-going wavefields, wherein the full wavefield inversion process generates a final subsurface physical property model.Type: GrantFiled: April 3, 2017Date of Patent: July 2, 2019Assignee: ExxonMobil Upstream Research CompanyInventors: Anatoly I Baumstein, Di Yang, Tetyana Vdovina, Yaxun Tang
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Publication number: 20180275300Abstract: A computer-implemented method for updating subsurface models including: using an offset continuation approach to update the model, and at each stage defining a new objective function where a maximum offset for each stage is set, wherein the approach includes, performing a first stage iterative full wavefield inversion with near offset data, as the maximum offset, to obtain velocity and density or impedance models, performing subsequent stages of iterative full wavefield inversion, each generating updated models, relative to a previous stage, wherein the subsequent stages include incrementally expanding the maximum offset until ending at a full offset, wherein a last of the stages yields finally updated models, the subsequent stages use the updated models as starting models, and the full wavefield inversions include constraining scales of the velocity model updates at each stage of inversion as a function of velocity resolution; and using the finally updated models to prospect for hydrocarbons.Type: ApplicationFiled: February 12, 2018Publication date: September 27, 2018Inventors: Volkan Akcelik, Anatoly I. Baumstein, Valeriy V. Brytik, Sunwoong Lee, Yaxun Tang
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Publication number: 20180045839Abstract: A computer-implemented method for updating a physical properties model of a subsurface region in an iterative inversion of seismic data using a gradient of a cost function that compares the seismic data to model-simulated data, said method comprising: obtaining a contrast model of a subsurface physical parameter that is sensitive to data dynamics and a kinematic model of a subsurface physical parameter; determining a gradient of a cost function using the contrast model and the kinematic model, wherein the cost function compares seismic data to model-simulated data; updating the kinematic model using a search direction derived from the gradient; adapting the contrast model according to an update to the kinematic model performed in the updating step; iteratively repeating the determining, updating, and adapting steps until a predetermined stopping criteria is reached, and generating a subsurface image from a finally updated kinematic model; and using the subsurface image to prospect for hydrocarbons.Type: ApplicationFiled: June 6, 2017Publication date: February 15, 2018Inventors: Yaxun Tang, Sunwoong Lee, Anatoly I Baumstein, Volkan Akcelik
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Publication number: 20180017690Abstract: A method for iteratively inverting seismic data to jointly infer a model for at least P-wave velocity and attenuation parameters of the subsurface, the method including: jointly inverting the P-wave velocity and attenuation parameters with an iterative visco-acoustic full wavefield inversion process, wherein the iterative visco-acoustic full wavefield inversion process includes computing a gradient of an objective function, the objective function measuring a misfit between all or part of the seismic data and corresponding model-simulated seismic data; for each of the P-wave velocity and attenuation parameters, computing a search direction in model space from the gradient; determining line search step sizes ? and ? for the search directions for the P-wave velocity and attenuation parameters, respectively, wherein a ratio of the step sizes is a function of the P-wave velocity parameter; and using the step sizes ? and ? and the search directions for each of the P-wave velocity and attenuation parameters, computiType: ApplicationFiled: June 6, 2017Publication date: January 18, 2018Inventors: Sirui Tan, Yaxun Tang, Anatoly I. Baumstein, Gboyega Ayeni, Tetyana Vdovina, Thomas A. Dickens
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Publication number: 20170307770Abstract: A method, including performing, with a computer, up/down separation of geophysical data, which produces an approximate up-going wavefield and an approximate down-going wavefield; creating an areal source based at least in part on the down-going wavefield; and performing, with a computer, a full wavefield inversion process with the areal source, and an objective function measuring a misfit between modeled up-going wavefields and recorded up-going wavefields, wherein the full wavefield inversion process generates a final subsurface physical property model.Type: ApplicationFiled: April 3, 2017Publication date: October 26, 2017Inventors: Anatoly I. BAUMSTEIN, Di Yang, Tetyana Vdovina, Yaxun Tang
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Publication number: 20170108602Abstract: A method, including: obtaining a seismic dataset that is separated into subsets according to predetermined subsurface reflection angle ranges; performing, with a computer, an acoustic full wavefield inversion process on each of the subsets, respectively, to invert for density and generate respective density models; generating acoustic impedances for each of the subsets, as a function of reflection angle, using the respective density models; and transforming, using a computer, the acoustic impedances for each of the subsets into reflectivity sections, wherein the transforming includes normalizing the reflectivity sections by their respective bandwidth.Type: ApplicationFiled: August 30, 2016Publication date: April 20, 2017Inventors: Di YANG, Reeshidev Bansal, Spyridon K. Lazaratos, Jia Yan, Anatoly I. Baumstein
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Publication number: 20090288823Abstract: A method is disclosed that uses (a) source-receiver reciprocity and (b) a method such as ISR DMO (U.S. Patent Application Publication No. 2006/0098529) that allows reconstruction of densely sampled gathers at arbitrary surface locations, to efficiently predict multiple reflections, either surface related or interbed multiples, in seismic data. For each reconstructed gather and each output (field) trace, two traces are extracted corresponding to the field source and receiver positions of the output trace, then they are convolved and the convolution result is added (summed) to that obtained by applying this procedure to previously reconstructed gathers. The efficiency results from the fact that the convolutions are performed by looping over all traces for each “bounce” point, with the outer loop being over bounce points. Once all the reconstructed gathers are processed, multiple predictions are obtained for the whole survey by conventional means.Type: ApplicationFiled: February 6, 2009Publication date: November 26, 2009Inventor: Anatoly I. Baumstein
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Patent number: 7505362Abstract: Method for interpolating aliased seismic data to generate shot records at regular shot points. The method involves sorting the data into common offsets to obtain the finer sampling in the common-offset domain, then using DMO to transform the data to zero offset to eliminate azimuth and offset variations, from which densely sampled shot records are reconstructed by an efficient Log-Stretch Inverse Shot Record DMO. The method has ready application to techniques that benefit from input data that are regularly and densely sampled, such as 3-D surface related multiple elimination and shot record wave equation migration.Type: GrantFiled: August 24, 2005Date of Patent: March 17, 2009Assignee: ExxonMobil Upstream Research Co.Inventors: John E. Anderson, Anatoly I. Baumstein, Mohamed T. Hadidi