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    LABELING AN UNLABELED DATASET
    521.
    发明申请
    LABELING AN UNLABELED DATASET 有权

    公开(公告)号：US20220058440A1

    公开(公告)日：2022-02-24

    申请号：US17410400

    申请日：2021-08-24

    Applicant: CHEVRON U.S.A. INC.

    Inventor： Xin FENG ,  Shuxing CHENG ,  Tamas NEMETH ,  Irene E. STEIN ,  Larry A. BOWDEN JR. ,  Adam M. REEDER

    IPC: G06K9/62 ,  G06N3/08

    Abstract: Embodiments of labeling an unlabeled dataset are provided. One embodiment comprises (a) obtaining a labeled dataset comprising a first plurality of data inputs and corresponding labels; (b) training a classification model using the labeled dataset; (c) obtaining the unlabeled dataset comprising a second plurality of data inputs without labels; (d) applying the classification model to the unlabeled dataset to generate a predicted label for each data input of the unlabeled dataset; (e) determining a verification quantity of the predicted labels to be verified by a user; (f) obtaining a verification dataset for the verification quantity of the predicted labels verified by the user; (g) updating the classification model using the verification dataset; and (h) applying the updated classification model to the remaining predicted labels that did not undergo verification and updating in response to the updated classification model. The verification dataset comprises an update to at least one predicted label.

    Systems and methods for estimating a likelihood of an object element in a given position in a subsurface volume of interest
    522.
    发明授权
    Systems and methods for estimating a likelihood of an object element in a given position in a subsurface volume of interest 有权

    公开(公告)号：US11255996B2

    公开(公告)日：2022-02-22

    申请号：US16378451

    申请日：2019-04-08

    Applicant: CHEVRON U.S.A. INC.

    Inventor： Julian Thorne ,  Michael Pyrcz

    IPC: G01V1/30

    Abstract: Systems and methods for estimating a likelihood of an object element in a given position in a subsurface volume of interest are disclosed. Exemplary implementations may: obtain target subsurface data from the subsurface volume of interest; obtain an object element set corresponding to the subsurface volume of interest; generate correlation values as a function of position in the subsurface volume of interest by applying the object filters to the target subsurface data; and generate object element likelihood values by applying the object templates to positions in the subsurface volume of interest corresponding to the correlation values.

    SYSTEM AND METHOD FOR SUBSURFACE STRUCTURAL INTERPRETATION
    527.
    发明申请
    SYSTEM AND METHOD FOR SUBSURFACE STRUCTURAL INTERPRETATION 有权

    公开(公告)号：US20210405234A1

    公开(公告)日：2021-12-30

    申请号：US16912703

    申请日：2020-06-25

    Applicant: Chevron U.S.A. Inc.

    Inventor： Kellen Leigh Gunderson ,  Chris Anthony Guzofski

    IPC: G01V1/30

    Abstract: A method is described for assessing subsurface structure uncertainty based on at least one subsurface horizon. The method calculates seismic continuity attributes to determine a mappability of the subsurface horizon(s); determines horizontal uncertainty for each fault in vertical uncertainty for each horizon; generates probabilistic scenarios for a subsurface geometry for at least one conceptual model; and generates a map of geological model uncertainty based on the probabilistic scenarios. In some embodiments, the probabilistic scenarios are stochastic simulations. In some embodiments, generating a map of geological model uncertainty is based on information entropy. The method may be executed by a computer system.

    PH CONTROL IN FLUID TREATMENT
    528.
    发明申请
    PH CONTROL IN FLUID TREATMENT 有权

    公开(公告)号：US20210395602A1

    公开(公告)日：2021-12-23

    申请号：US17287734

    申请日：2019-10-22

    Applicant: CHEVRON U.S.A. INC.

    Inventor： Sujeewa S. PALAYANGODA ,  Kerry Kennedy SPILKER ,  Sumitra SUBRAHMANYAN ,  Gayani W. PINNAWALA ,  Sophany THACH ,  Gregory A. WINSLOW ,  Dennis Arun ALEXIS ,  Harold Charles LINNEMEYER ,  Timothy P. THERIOT ,  Les Leszek JACKOWSKI ,  Francesca CIBOTTI

    IPC: C09K8/588 ,  E21B21/06 ,  E21B43/38

    Abstract: Embodiments of treating fluid comprising hydrocarbons, water, and polymer being produced from a hydrocarbon-bearing formation are provided. One embodiment comprises adding a concentration of a viscosity reducer to the fluid to degrade the polymer present in the fluid and adding a concentration of a neutralizer to the fluid to neutralize the viscosity reducer in the fluid. The viscosity reducer is buffered at a pH of 7 or less (e.g., at a pH of from 2 to 7, such as at a pH of from 3.5 to 7, or at a pH of from 5 to 7). The addition of the concentration of the viscosity reducer is in a sufficient quantity to allow for complete chemical degradation of the polymer prior to the addition of the concentration of the neutralizer in the fluid such that excess viscosity reducer is present in the fluid. The addition of the concentration of the neutralizer is sufficiently upstream of any surface fluid processing equipment to allow for complete neutralization of the excess viscosity reducer such that excess neutralizer is present in the fluid prior to the fluid reaching any of the surface fluid processing equipment.

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