Lithologic Reservoirs ›› 2007, Vol. 19 ›› Issue (3): 93-96.doi: 10.3969/j.issn.1673-8926.2007.03.016

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Prestack seismic data spl icing techniques based on shaping operator derived from poststack record

FENG Xinyuan,WANG Yuchao,HU Ziduo,LI Fei,SHAO Xichun   

  1. Research Institute of Petroleum Exploration & Development-Northwest ( NWGI) , PetroChina , Lanzhou 730020 , China
  • Online:2007-09-15 Published:2007-09-15

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Abstract:

In order to overcome the disadvantages in the conventional prestack seismic data splicing processing , the post stack record was used to obtain shaping operators. Then the shaping matched filtering is perormed. This technique makes the seismic data with different characteristics consistent on frequency , phase and mplitude ,and carries out the prestack seismic data splicing. The practical application of the technique showed that it could provide high quality prestack gathers for subsequent processing , by which the shaping operators obtained are stable and easy to perform , and that it is assuredly a good choice for block-tie processing.

Key words: extra-low permeability, surface density, micro-fracture, Ordos Basin

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