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Extrapolate well logs based on the constrained interpolation algorithm

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Abstract

Based on a detailed analysis of differences between seismic data and well logs, we discuss the problem of matching seismic traces and well logs and present a new matching method based on event search in instantaneous phase which greatly improves seismic resolution. The method is based on flattening events in instantaneous phase to compare the seismic traces to the well log traces with the same phase. We calculate the coefficients using the singular value decomposition method to extrapolate the well logs. As a result, the events in the seismic profile are continuous and match well with well logs. We apply this method to the Mao-2 well in Daqing Oilfield with good results.

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Authors and Affiliations

  1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China

    Hongwei Liu & Hong Liu

  2. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China

    Hongwei Liu

  3. The Exploratory development Institute of Daqing Oilfield Limited Liability Company, Daqing, 163712, China

    Yueshuang Qin

  4. Research Institute of Exploration and Development of Chinese Petroleum, Beijing, 100083, China

    Hao Shou

Authors
  1. Hongwei Liu
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  2. Hong Liu
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  3. Yueshuang Qin
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  4. Hao Shou
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Corresponding author

Correspondence to Hong Liu.

Additional information

This research was supported by National Natural Science Foundation of China (Grant No. 40674072), National Hi-tech Research and Development Program of China (863 Program) (Grant No. 2006AA09A102-08), National Basic Research Program of China (the 973 Program. Grant No. 007CB209603) and the Opening fund of State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences (GPMR200633).

Liu Hongwei received a Bachelor’s degree in Solid Earth Geophysics from the University of Science and Technology of China in 2005. He is now a PhD Candidate in the Institute of Geology and Geophysics, Chinese Academy of Sciences. His research work is mainly seismic data high resolution reconstruction and pre-stack migration.

Liu Hong, Professor, PhD Supervisor, Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS).

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Liu, H., Liu, H., Qin, Y. et al. Extrapolate well logs based on the constrained interpolation algorithm. Appl. Geophys. 5, 307–313 (2008). https://doi.org/10.1007/s11770-008-0032-4

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  • DOI: https://doi.org/10.1007/s11770-008-0032-4

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