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公开(公告)号：US20230313616A1
公开(公告)日：2023-10-05
申请号：US17657078
申请日：2022-03-29
Applicant: Halliburton Energy Services, Inc.
Inventor： Hsu-Hsiang Wu , Ting Yan , Li Pan , Huiwen Sheng
CPC classification number: E21B7/04 , E21B49/00 , E21B2200/20
Abstract: System and methods for geosteering inversion are provided. Downhole tool responses are predicted for different points along a planned path of a wellbore during a downhole operation, based on each of a plurality of inversion models. Measurements of the downhole tool's actual responses are obtained as the wellbore is drilled over the different points during a current stage of the operation. The inversion models are then clustered using a weighted clustering approached in which a weighted score system is formulated to apply a standard deviation, number of models, and/or misfit of each cluster as key parameters, and used to evaluate the clusters accordingly. The corresponding scores are computed and used to select clusters. The planned wellbore path is adjusted for the subsequent stage(s) of the downhole operation.
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公开(公告)号：US20230220768A1
公开(公告)日：2023-07-13
申请号：US17575173
申请日：2022-01-13
Applicant: Halliburton Energy Services, Inc.
Inventor： Hsu-Hsiang Wu , Li Pan , Ting Yan
CPC classification number: E21B49/003 , G01V3/20 , E21B44/00 , E21B7/04 , E21B2200/20
Abstract: System and methods for geosteering inversion are provided. Downhole tool responses are predicted for different points along a planned path of a wellbore during a downhole operation, based on each of a plurality of inversion models. Measurements of the downhole tool's actual responses are obtained as the wellbore is drilled over the different points during a current stage of the operation. The inversion models are clustered based on a comparison between the actual and predicted tool responses and a randomly selected centroid for each cluster. The inversion models are re-clustered using an average inversion model determined for each cluster as the centroid for that cluster. At least one of the re-m clustered inversion models is used to perform inversion for one or more subsequent stages of the downhole operation along the planned wellbore path. The planned wellbore path is adjusted for the subsequent stage(s) of the downhole operation.
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公开(公告)号：US12123301B2
公开(公告)日：2024-10-22
申请号：US17575173
申请日：2022-01-13
Applicant: Halliburton Energy Services, Inc.
Inventor： Hsu-Hsiang Wu , Li Pan , Ting Yan
CPC classification number: E21B49/003 , E21B7/04 , E21B44/00 , E21B47/18 , E21B49/087 , G01V3/20 , G01V3/30 , G01V3/38 , E21B2200/20
Abstract: System and methods for geosteering inversion are provided. Downhole tool responses are predicted for different points along a planned path of a wellbore during a downhole operation, based on each of a plurality of inversion models. Measurements of the downhole tool's actual responses are obtained as the wellbore is drilled over the different points during a current stage of the operation. The inversion models are clustered based on a comparison between the actual and predicted tool responses and a randomly selected centroid for each cluster. The inversion models are re-clustered using an average inversion model determined for each cluster as the centroid for that cluster. At least one of the re-m clustered inversion models is used to perform inversion for one or more subsequent stages of the downhole operation along the planned wellbore path. The planned wellbore path is adjusted for the subsequent stage(s) of the downhole operation.
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