WELL CORRELATION THROUGH INTERMEDIARY WELL
    1.
    发明申请

    公开(公告)号:WO2022103801A1

    公开(公告)日:2022-05-19

    申请号:PCT/US2021/058730

    申请日:2021-11-10

    Abstract: An intermediary well may be selected for a group of wells. The intermediary well may be used as an origin point from which branching wells paths are generated to connect the group of wells through the intermediary well. A shortest path between the intermediary well and the group of wells along the branching well paths may be identified, and the group of wells may be aligned along the shortest path. Boundaries of the intermediary well may be propagated to the aligned group of wells to establish correlation between segments of the intermediary well and segments of the aligned group of wells.

    DETERMINATION OF REPRESENTATIVE WELLS TO CHARACTERIZE SUBSURFACE REGIONS

    公开(公告)号:WO2022026237A1

    公开(公告)日:2022-02-03

    申请号:PCT/US2021/042214

    申请日:2021-07-19

    Abstract: Simulated wells may be selected from a subsurface representation to serve as representation of the corresponding simulated subsurface region. Spatial coverage of a simulated well for the simulated subsurface region may be determined based on extent of similarity between the simulated well and other simulated wells in the subsurface representation. The simulated wells may be selected to achieve desired spatial coverage for the simulated subsurface region and to achieve desired representation of properties of interest for the simulated subsurface region.

    DETECTION OF ANOMALY IN A SUBSURFACE REGION
    5.
    发明申请

    公开(公告)号:WO2022103875A1

    公开(公告)日:2022-05-19

    申请号:PCT/US2021/058835

    申请日:2021-11-10

    Abstract: A region of interest may include a group of wells. The group of wells may be connected to form a graph of wells, with nodes representing wells and edges representing connections between wells. Connection scores from dynamic time warping paths for individual pairs of connected wells may be used to detect anomalies in the region of interest. Number of boundaries within individual wells may be used to detect anomalies in the region of interest. Connection score and/or number of boundaries may be represented on a visual map of the region of interest.

    COMPARISON OF WELLS USING A DISSIMILARITY MATRIX

    公开(公告)号:WO2021194851A1

    公开(公告)日:2021-09-30

    申请号:PCT/US2021/023008

    申请日:2021-03-18

    Abstract: Well information may define subsurface configuration of different wells. Marker information defining marker positions within the wells may be obtained. A dissimilarity matrix for the wells may generated, with the element values of the dissimilarity matrix determined based on comparison of corresponding subsurface configuration of the wells. A gated dissimilarity matrix may be generated from the dissimilarity matrix based on the marker positions within the wells. The elements values of the gated dissimilarity matrix corresponding to one set of marker positions and not corresponding to the other set of marker positions may be changed. Correlation between the wells may be determined based on the gated dissimilarity matrix such that correlation exists between a marker position in one well and a marker position in another well.

    VISUALIZATION OF DIRECTIONAL INFLUENCE OF WELLS ON CORRELATION

    公开(公告)号:WO2022103863A1

    公开(公告)日:2022-05-19

    申请号:PCT/US2021/058819

    申请日:2021-11-10

    Abstract: A well may be selected from a group of wells. Multiple scenarios of boundary locations within the selected well may be determined based on propagation of boundaries from other wells to the selected well. A visual representation of the multiple scenarios of boundary locations within the selected well may be provided based on spatial arrangement of the wells within the group of wells. A visual representation of the spatial arrangement of the wells within the group of wells may be provided.

    IMAGE-COMPARISON BASED ANALYSIS OF SUBSURFACE REPRESENTATIONS

    公开(公告)号:WO2021231457A1

    公开(公告)日:2021-11-18

    申请号:PCT/US2021/031817

    申请日:2021-05-11

    Abstract: 2D slices/images may be extracted from a three-dimensional volume of subsurface data. Image comparison analysis across sequential 2D slices/images may identify boundaries within the corresponding subsurface region, such as changes in style of deposition or reservoir property distribution. Identification of temporal/spatial boundaries in the subsurface region where subsurface properties change may facilitate greater understanding of the scales and controls on heterogeneity, and connectivity between different locations.

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