Lithologic Reservoirs ›› 2008, Vol. 20 ›› Issue (1): 95-100.doi: 10.3969/j.issn.1673-8926.2008.01.016

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Study and application of seismic prestack analysis technique in Zizhou Gas Field

WANG Daxing1, YU Bo2, ZHANG Mengbo1, SONG Chen3   

  1. 1. Research Institute of Petroleum Exploration and Development, Changqing Oilfield Company, PetroChina, Xi’an 710021, China; 2. Exploration Department, Changqing Oilfield Company, PetroChina, Xi’an 710021, China; 3. Changqing Business Division, Logging Co. Ltd., CNPC, Xi’an 710021, China
  • Online:2008-03-15 Published:2008-03-15

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Abstract:

The sandstone of the second member of Shanxi Formation in Zizhou Gas Field is characterized by thin reservoir and quick lateral variation. Based on the poststack seismic reservoir prediction, the method of prestack seismic reservoir prediction is studied and applied. The prediction accuracy for the effective reservoir can be improved by using prestack inversion to calculate elastic impedance and elastic parameters. The application of this technique in the reservoir prediction in Zizhou Gas Field shows that the prediction coincidence rate is raised, and that it takes a significant part in the development in Zizhou Gas Field.

Key words: scientific thinking, logical thinking, rational quality, comprehensive quality, petroleum exploration

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