公开(公告)号：US12000976B2

公开(公告)日：2024-06-04

申请号：US17006110

申请日：2020-08-28

Applicant: Landmark Graphics Corporation

Inventor： Sebastian Kroczka ,  Welton Danniel Souza ,  Chafaa Badis

IPC: G01V20/00 ,  E21B47/085 ,  G01V1/40 ,  G06F30/27 ,  G06F113/08 ,  G06F113/14 ,  G06N20/00

CPC classification number: G01V20/00 ,  E21B47/085 ,  G01V1/40 ,  G06F30/27 ,  G06N20/00 ,  E21B2200/20 ,  G06F2113/08 ,  G06F2113/14

Abstract: A method for training a well model to predict material loss for a pipe string having a wall thickness and located within a borehole. The method may include measuring the wall thickness of a first pipe string at locations axially along the first pipe string with a logging tool at a first time. The method may also include measuring the wall thickness of the first pipe string at the locations with the logging tool at a second time. The method may further include training a first well model based on a machine learning (“ML”) algorithm to predict a predicted amount of material loss in the future for the first pipe string at a selected location using the wall thickness measurements at the first and second times and well operating condition information related to the first pipe string.

公开(公告)号：US11939864B2

公开(公告)日：2024-03-26

申请号：US17064366

申请日：2020-10-06

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： William Owen Alexander Ruhle ,  Ronald Glen Dusterhoft ,  Ajish Potty ,  Joshua Lane Camp

IPC: E21B49/00 ,  E21B43/26 ,  E21B43/267 ,  E21B47/06 ,  E21B47/107 ,  E21B49/08 ,  G01V1/22 ,  G01V1/40 ,  G01V20/00 ,  G06F30/20 ,  E21B47/07 ,  G06F113/08

CPC classification number: E21B49/005 ,  E21B43/26 ,  E21B43/2607 ,  E21B43/267 ,  E21B47/06 ,  E21B47/107 ,  E21B49/00 ,  E21B49/0875 ,  G01V1/226 ,  G01V1/40 ,  G01V20/00 ,  G06F30/20 ,  E21B47/07 ,  E21B2200/20 ,  G06F2113/08

Abstract: Aspects of the subject technology relate to systems and methods for controlling a hydraulic fracturing job. Systems and methods are provided for receiving diagnostics data of a hydraulic fracturing completion of a wellbore, accessing a fracture formation model that models formation characteristics of fractures formed through the wellbore into a formation surrounding the wellbore during the hydraulic fracturing completion with respect to surface variables of the hydraulic fracturing completion, selecting one or more subsurface objective functions from a plurality of subsurface objective functions for changing one or more of the formation characteristics of the fractures, the one or more subsurface objective functions including an objective function for cluster efficiency, the objective function for cluster efficiency including flow distribution throughout a plurality of clusters of perforations, and applying the fracture formation model based on the diagnostics data to determine values of the surface variables.

公开(公告)号：US11874419B2

公开(公告)日：2024-01-16

申请号：US17363660

申请日：2021-06-30

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Philippe Georges Christophe Nivlet ,  Robert James Smith ,  Nasher Muqbel AlBinHassan

IPC: G01V1/32 ,  G01V1/40 ,  G01V1/28

CPC classification number: G01V1/32 ,  G01V1/282 ,  G01V1/40

Abstract: A method is claimed for automatically transforming sonic well logs from a depth domain to a seismic two-way travel-time domain. The method includes obtaining a training well with a measured sonic well log in the depth domain and a borehole seismic dataset in the depth domain and obtaining an application well with only a measured sonic well log in the depth domain. The method further includes training a network to predict a transformed sonic well log for the training well based, at least in part, on the measured sonic well log and the borehole seismic dataset in the training well, and predicting with the network, the transformed sonic well log in the application well.

公开(公告)号：US20240011391A1

公开(公告)日：2024-01-11

申请号：US18042059

申请日：2021-08-10

Applicant: IFP Energies nouvelles

Inventor： Patrick RASOLOFOSAON ,  Antoine BOUZIAT ,  Francois COKELAER

IPC: E21B47/04 ,  E21B49/08 ,  G01V1/40

CPC classification number: E21B47/04 ,  E21B49/088 ,  G01V1/40

Abstract: The invention is a method of determining an electrofacies interpretation of measurements relative to at least a portion of at least one well drilled through an underground formation. The method comprises applying supervised or unsupervised classification methods to measurements in order to determine learning information. Supervised classification methods are subsequently applied to the measurements, the classification methods being trained by learning information. An ensemble classification method is then applied to the results of the supervised classification methods to determine the electrofacies interpretation of the measurements.

公开(公告)号：US11828158B2

公开(公告)日：2023-11-28

申请号：US17850443

申请日：2022-06-27

Applicant: Baker Hughes Oilfield Operations LLC

Inventor： Baoyan Li ,  Elan Yogeswaren ,  Marc Ramirez ,  Joseph Olaiya

IPC: G01V1/48 ,  G01V1/40 ,  G01V1/50 ,  E21B47/005

CPC classification number: E21B47/005 ,  G01V1/48 ,  G01V1/50 ,  G01V1/40

Abstract: In at least one embodiment, a well inspection method and system enables transmission of an acoustic signal from a well inspection tool into a well structure and reception of return signals from the well structure at an array of receivers on the well inspection tool. The method and system enable performing of Short-Term Fourier Transform (STFT) on the return signals to generate spectrogram data that is used to determine short-term power spectra of the return signals. Time-dependent frequency response and location-dependent waveform propagation patterns are identified from the short-term power spectra. Cement bonding conditions is determined based on pattern matching using the time-dependent frequency response patterns and using the location-dependent waveform propagation patterns.

公开(公告)号：US11802789B2

公开(公告)日：2023-10-31

申请号：US17364595

申请日：2021-06-30

Applicant: Silixa Ltd.

Inventor： Mahmoud Farhadiroushan ,  Tom Richard Parker ,  Sergey Shatalin

IPC: G01H9/00 ,  G01D5/353 ,  E21B47/002 ,  E21B47/107 ,  G01M11/00 ,  G01F1/661 ,  G01F1/66 ,  G01V1/40

CPC classification number: G01H9/004 ,  E21B47/002 ,  E21B47/107 ,  G01D5/35303 ,  G01D5/35306 ,  G01D5/35325 ,  G01D5/35335 ,  G01D5/35358 ,  G01D5/35364 ,  G01D5/35377 ,  G01D5/35383 ,  G01F1/66 ,  G01F1/661 ,  G01M11/331 ,  G01V1/40 ,  E21B47/0025

Abstract: The present invention provides novel apparatus and methods for fast quantitative measurement of perturbation of optical fields transmitted, reflected and/or scattered along a length of an optical fibre. The present invention can be used for point sensors as well as distributed sensors or the combination of both. In particular this technique can be applied to distributed sensors while extending dramatically the speed and sensitivity to allow the detection of acoustic perturbations anywhere along a length of an optical fibre while achieving fine spatial resolution. The present invention offers unique advantages in a broad range of acoustic sensing and imaging applications. Typical uses are for monitoring oil and gas wells such as for distributed flow metering and/or imaging, seismic imaging, monitoring long cables and pipelines, imaging within large vessel as well as for security applications.

公开(公告)号：US11795783B2

公开(公告)日：2023-10-24

申请号：US16863123

申请日：2020-04-30

Applicant: ExxonMobil Technology and Engineering Company

Inventor： David J. Schmidt ,  Krishnan Kumaran ,  Donald Allen Burnett

IPC: E21B41/00 ,  G01V1/40 ,  G01V1/28 ,  E21B43/02 ,  E21B43/12

CPC classification number: E21B41/00 ,  G01V1/288 ,  G01V1/40 ,  E21B43/123

Abstract: A method of identifying hydrocarbon production information is disclosed. In in a first hydrocarbon management environment, a first audio signal is detected and a characteristic acoustic fingerprint is identified therefrom. The fingerprint is stored in a memory, along with identifying information associated with the first signal. A second audio signal is detected and a characteristic acoustic fingerprint is identified therefrom. The fingerprints are compared, and if the fingerprints match the identifying information of the first audio signal is assigned to the second audio signal. A notification regarding the matching of the characteristic acoustic fingerprints of the first and second audio signals is issued.

公开(公告)号：US20230136442A1

公开(公告)日：2023-05-04

申请号：US18046516

申请日：2022-10-14

Applicant: Schlumberger Technology Corporation

Inventor： Andrew Hayman ,  Christoph Klieber ,  Jean-Luc Le Calvez ,  Thilo Brill

IPC: E21B47/005 ,  G01N29/04 ,  G01N29/42 ,  G01N29/11 ,  E21B47/107 ,  G01V1/40

Abstract: Systems and methods are provided for obtaining a flexural-attenuation measurement for cement evaluation that may be effective even for wells with relatively thick casings. A method includes emitting an acoustic signal at a casing in a well that excites the casing into generating an acoustic response signal containing acoustic waves, such as Lamb waves. The Lamb waves include flexural waves and extensional waves. The casing may be relatively large, having a thickness of at least 16 mm. The acoustic response signal may be detected and filtered to reduce a relative contribution of the extensional waves. This may correspondingly increase a relative contribution of the flexural waves. The filtered acoustic response signal may be used as a flexural-attenuation measurement for cement evaluation.

公开(公告)号：US20230066787A1

公开(公告)日：2023-03-02

申请号：US17896357

申请日：2022-08-26

Applicant: ExxonMobil Upstream Research Company

Inventor： David J. SCHMIDT ,  Krishnan KUMARAN ,  Bry-Ann M. SALAHI ,  Brian C. SEABROOK

IPC: G01V1/22 ,  H04R1/08 ,  G01V1/40 ,  E21B47/095

Abstract: Methods of characterizing acoustic output from a hydrocarbon well and hydrocarbon wells that include controllers that perform the methods are disclosed herein. The methods include receiving the acoustic output, determining a plurality of acoustic fingerprints, and electronically clustering the plurality of acoustic fingerprints. The acoustic output includes information regarding a plurality of sound events, and each sound event of the plurality of sound events includes at least one corresponding sound detected at the hydrocarbon well. The plurality of acoustic fingerprints includes a corresponding acoustic fingerprint for each sound event of the plurality of sound events. The electronically clustering includes utilizing a clustering algorithm to generate a plurality of acoustic event clusters. Each acoustic event cluster of the plurality of acoustic event clusters includes a corresponding fingerprint subset of the plurality of acoustic fingerprints, and each acoustic fingerprint in the corresponding fingerprint subset includes at least one similar acoustic property.

公开(公告)号：US11592590B2

公开(公告)日：2023-02-28

申请号：US17247580

申请日：2020-12-17

Applicant: Schlumberger Technology Corporation

Inventor： Christopher Lunny

IPC: G01V1/40 ,  G06F16/2455 ,  E21B49/00 ,  G06K9/62

Abstract: A method may include calculating a first set of hash values for a set of well log channels, extracting a well log channel snippet from an unknown well log channel, calculating a second set of hash values for the well log channel snippet, identifying, for the unknown well log channel, a matching well log channel by searching the first set of hash values with the second set of hash values, and storing, for the unknown well log channel, a channel context corresponding to the matching well log channel.