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公开(公告)号：US12000971B2
公开(公告)日：2024-06-04
申请号：US17647799
申请日：2022-01-12
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Daniele Colombo , Ernesto Sandoval-Curiel , Diego Rovetta , Apostolos Kontakis
Abstract: A method may include obtaining various seismic traces for a geological region of interest. The method may further include determining an offset attribute and an azimuthal attribute. The method may further include determining, using the offset attribute and the azimuthal attribute, a virtual trace bin for the geological region of interest. The method may further include generating a virtual trace using a subset of the seismic traces and corresponding to the virtual trace bin. The method may further include generating a velocity model for the geological region of interest using a virtual shot gather including the virtual trace and various virtual traces. A respective virtual trace among the virtual traces may correspond to a respective virtual trace bin among various virtual trace bins. The method may further include generating a seismic image of the geological region of interest using the velocity model.
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2.发明公开公开(公告)号：US20230184972A1
公开(公告)日：2023-06-15
申请号：US17647799
申请日：2022-01-12
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Daniele Colombo , Ernesto Sandoval-Curiel , Diego Rovetta , Apostolos Kontakis
Abstract: A method may include obtaining various seismic traces for a geological region of interest. The method may further include determining an offset attribute and an azimuthal attribute. The method may further include determining, using the offset attribute and the azimuthal attribute, a virtual trace bin for the geological region of interest. The method may further include generating a virtual trace using a subset of the seismic traces and corresponding to the virtual trace bin. The method may further include generating a velocity model for the geological region of interest using a virtual shot gather including the virtual trace and various virtual traces. A respective virtual trace among the virtual traces may correspond to a respective virtual trace bin among various virtual trace bins. The method may further include generating a seismic image of the geological region of interest using the velocity model.
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公开(公告)号：US20220187492A1
公开(公告)日：2022-06-16
申请号：US17121042
申请日：2020-12-14
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Daniele Colombo , Weichang Li , Ernesto Sandoval-Curiel
Abstract: A method for a physics-driven deep learning-based inversion coupled to fluid flow simulators may include obtaining measured data for a subsurface region, obtaining prior subsurface data for the subsurface region, and obtaining a physics-driven standard regularized joint inversion for at least two model parameters. The method may further include obtaining a case-based deep learning inversion characterized by a contracting path and an expansive path. The method may further include forming the physics-driven deep learning inversion with the physics-driven standard regularized joint inversion, the case-based deep learning inversion, and a coupling operator based on a penalty function. The method may further include forming a feedback loop between the physics-driven standard regularized joint inversion and the case-based deep learning inversion for re-training the case-based deep learning inversion. The method may further include generating an inversion solution for reservoir monitoring.
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公开(公告)号：US11346970B2
公开(公告)日：2022-05-31
申请号：US16118829
申请日：2018-08-31
Applicant: Saudi Arabian Oil Company
Inventor： Daniele Colombo , Federico Miorelli , Diego Rovetta , Gary Wayne Mcneice
Abstract: Seismic data from seismic exploration surveys are mapped into a hypercube of bins or voxels in a four-dimensional space (X, Y, Offset, and Azimuth) according to Common Mid-Point (or CMP) between source and receivers. The mapped data from individual voxels or bins is then analyzed by multimodal statistics. Robust estimates of first break picks are obtained from the analysis. The first break picks are then used to as seed inputs for autopicking iteration, which proceeds to convergence. Estimates of confidence levels in the data are provided for re-picking to reduce computer processing time in successive autopicking iterations. Analysis is provided of different seismic attributes such as azimuthal velocity variations indicative of anisotropy, positioning errors of sources/receivers, geometry errors, and three dimensional distribution of inversion residuals. Analysis is also performed of standard deviation of the travel time data useful for estimating data errors in the inversion covariance matrix.
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公开(公告)号：US11340370B2
公开(公告)日：2022-05-24
申请号：US16118616
申请日：2018-08-31
Applicant: Saudi Arabian Oil Company
Inventor： Daniele Colombo , Federico Miorelli , Diego Rovetta , Gary Wayne Mcneice
Abstract: Seismic data from seismic exploration surveys are mapped into a hypercube of bins or voxels in a four-dimensional space (X, Y, Offset, and Azimuth) according to Common Mid-Point (or CMP) between source and receivers. The mapped data from individual voxels or bins is then analyzed by multimodal statistics. Robust estimates of first break picks are obtained from the analysis. The first break picks are then used to as seed inputs for autopicking iteration, which proceeds to convergence. Estimates of confidence levels in the data are provided for re-picking to reduce computer processing time in successive autopicking iterations. Analysis is provided of different seismic attributes such as azimuthal velocity variations indicative of anisotropy, positioning errors of sources/receivers, geometry errors, and three dimensional distribution of inversion residuals. Analysis is also performed of standard deviation of the travel time data useful for estimating data errors in the inversion covariance matrix.
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Patent Agency Ranking
公开(公告)号：US10914854B2
公开(公告)日：2021-02-09
申请号：US16443384
申请日：2019-06-17
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Daniele Colombo , Federico Miorelli
Abstract: A surface-consistent refraction analysis automatically derives near surface corrections during seismic data processing. Residual time lags are evaluated in multiple CMP-offset-azimuth bins by similarity analysis with a pilot trace where a correlation window is centered at the refracted arrival. The similarity analysis may take the form of computerized cross-correlation, or other criteria such as semblance. The residuals are then used to build a system of linear equations that is simultaneously inverted for surface-consistent shot and receiver time shift corrections plus a possible subsurface residual term. The refraction analysis steps are completely automated and require a fraction of the time needed for conventional near surface analysis.
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公开(公告)号：US20200319365A1
公开(公告)日：2020-10-08
申请号：US16904131
申请日：2020-06-17
Applicant: Saudi Arabian Oil Company
Inventor： Daniele Colombo , Gary W. McNeice , Brett W. Bouldin
Abstract: Naturally-occurring, electromagnetic signals generated by interaction of solar wind with earth's magnetosphere adjacent a borehole are measured by an electromagnetic sensor positioned adjacent the borehole in the hydrocarbon-bearing formation. Electromagnetic signals generated within the borehole are measured over a period of time by a borehole sensor positioned within the borehole. The electromagnetic signals change over the period of time due to variations in fluid distributions within the hydrocarbon-bearing formation. Electromagnetic changes to the electromagnetic signals generated within the borehole and to the passive, naturally-occurring electromagnetic signals over the period of time are determined by one or more processors. A computational model of the hydrocarbon-bearing formation is generated based in part on the electromagnetic changes.
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公开(公告)号：US20190301925A1
公开(公告)日：2019-10-03
申请号：US16444646
申请日：2019-06-18
Applicant: Saudi Arabian Oil Company
Inventor： Howard K. Schmidt , Jesus Manuel Felix Servin , Frode Hveding , Daniele Colombo
Abstract: A variable-frequency light source is configured to emit a light beam and modulate a frequency of the light beam. A fiber optic cable is attached to the variable frequency light source. The fiber optic cable is configured to receive the light beam at an inlet and pass the light beam to an exit. Multiple optical detectors are attached to the fiber optic cable. Each of the optical detectors is configured to detect a specified frequency of light that is backscattered through the fiber optic cable. An actuation mechanism is attached to the fiber optic cable. The actuation mechanism is configured to deform the fiber optic cable in response to a stimulus.
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公开(公告)号：US10330526B1
公开(公告)日：2019-06-25
申请号：US15833782
申请日：2017-12-06
Applicant: Saudi Arabian Oil Company
Inventor： Howard K. Schmidt , Jesus Manuel Felix Servin , Frode Hveding , Daniele Colombo
Abstract: A variable-frequency light source is configured to emit a light beam and modulate a frequency of the light beam. A fiber optic cable is attached to the variable frequency light source. The fiber optic cable is configured to receive the light beam at an inlet and pass the light beam to an exit. Multiple optical detectors are attached to the fiber optic cable. Each of the optical detectors is configured to detect a specified frequency of light that is backscattered through the fiber optic cable. An actuation mechanism is attached to the fiber optic cable. The actuation mechanism is configured to deform the fiber optic cable in response to a stimulus.
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公开(公告)号：US20230125277A1
公开(公告)日：2023-04-27
申请号：US17522145
申请日：2021-11-09
Applicant: Saudi Arabian Oil Company
Inventor： Daniele Colombo , Ersan Turkoglu , Ernesto Sandoval-Curiel , Diego Rovetta , Apostolos Kontakis , Weichang Li
Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving for a plurality of common midpoint-offset bins each comprising a respective plurality of seismic traces, respective candidate pilot traces representing the plurality of common midpoint-offset bins; generating, based on the respective candidate pilot traces, a respective plurality of corrected seismic traces for each of the plurality of common midpoint-offset bins; grouping the respective pluralities of corrected seismic traces into a plurality of enhanced virtual shot gathers (eVSGs); generating, based on the plurality of common midpoint-offset bins, a common-midpoint (CMP) velocity model; calibrating the CMP velocity model using uphole velocity data to generate a pseudo-3 dimensional (3D) velocity model; performing, based on the plurality of enhanced virtual shot gathers and the pseudo-3D velocity model, a 1.5-dimensional full waveform inversion (FWI); and determining the subsurface velocity model based on the 1.5 dimensional FWI.
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