{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T21:45:31Z","timestamp":1768427131317,"version":"3.49.0"},"reference-count":54,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,1,12]],"date-time":"2023-01-12T00:00:00Z","timestamp":1673481600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key R&amp;D Program of China","award":["2018YFA0702502"],"award-info":[{"award-number":["2018YFA0702502"]}]},{"name":"National Key R&amp;D Program of China","award":["2022DQ0604-03"],"award-info":[{"award-number":["2022DQ0604-03"]}]},{"name":"National Key R&amp;D Program of China","award":["2021DJ3506"],"award-info":[{"award-number":["2021DJ3506"]}]},{"name":"CNPC","award":["2018YFA0702502"],"award-info":[{"award-number":["2018YFA0702502"]}]},{"name":"CNPC","award":["2022DQ0604-03"],"award-info":[{"award-number":["2022DQ0604-03"]}]},{"name":"CNPC","award":["2021DJ3506"],"award-info":[{"award-number":["2021DJ3506"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>As an irreplaceable quantitative interpretation method, prestack seismic inversion enables the effective estimation of subsurface elastic parameters for reservoir prediction. However, for the model-driven prestack seismic inversion, the band-limited characteristics and noise interference of observed seismic data result in its high dependence on the initial models. This suggests that reasonable initial models act as a supplement to reliable variation trends in formation and can reduce the non-uniqueness of inversion results. In this article, we introduce a well-log interpolation method with a feature map-guided non-local means algorithm, which is for establishing high-fidelity initial models used for prestack seismic inversion. First, we briefly review the basic theory of general model-driven prestack seismic inversion. Then, we use dictionary learning to split the poststack seismic record into patches, and represent them with sparse vectors, instead of directly using seismic record. The advantage of dictionary learning is that it can adaptively extract useful signals from noisy observed data and provide fine structures by sparse reconstruction. Therefore, the proposed feature extraction method can improve the noise immunity and reliability of the well-log interpolation. More accurate initial models are pre-constructed efficiently by our feature extraction method, which improves the reliability of prestack seismic inversion results. Two kinds of observed seismic data are used, including the poststack seismic record for well-log interpolation and prestack seismic data used for inversion. Synthetic and field data tests both demonstrate the favorable performance of the proposed well-log interpolation method. In summary, a novel and convenient initial model building approach is provided, which contributes to seismic exploration and geologic modeling.<\/jats:p>","DOI":"10.3390\/rs15020459","type":"journal-article","created":{"date-parts":[[2023,1,12]],"date-time":"2023-01-12T05:45:33Z","timestamp":1673502333000},"page":"459","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Adaptive Feature Map-Guided Well-Log Interpolation"],"prefix":"10.3390","volume":"15","author":[{"given":"Lingqian","family":"Wang","sequence":"first","affiliation":[{"name":"College of Science, China University of Petroleum, Changping, Beijing 102249, China"}]},{"given":"Hui","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Geophysics, China University of Petroleum, Changping, Beijing 102249, China"}]},{"given":"Hanming","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Geophysics, China University of Petroleum, Changping, Beijing 102249, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"R753","DOI":"10.1190\/geo2018-0730.1","article-title":"Three-parameter prestack seismic inversion based on L1-2 minimization","volume":"84","author":"Wang","year":"2019","journal-title":"Geophysics"},{"key":"ref_2","first-page":"4502511","article-title":"Directional Total Variation Regularized High-Resolution Prestack AVA Inversion","volume":"60","author":"Huang","year":"2021","journal-title":"IEEE Trans. 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