Lithologic Reservoirs ›› 2007, Vol. 19 ›› Issue (2): 97-101.doi: 10.3969/j.issn.1673-8926.2007.02.020

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The interpretation method and application effect determined by multiple seismic and logging factors

CHENG Yuhong1,GUO Yanru2,ZHENG Ximing1,FANG Naizhen1,MA Yuhu1   

  1. 1. Research Institute of Petroleum Exploration & Development- Northwest（NWGI）, PetroChina, Lanzhou 730020, China;
    2. Ordos Branch, Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
  • Online:2007-06-15 Published:2007-06-15

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Abstract:

The interpretation is difficult because of the low signal- to- noise caused by the thick loess deposited in Ordos Basin. The authors choose the mid- lower part of Yanchang Formation in Yanding area to demarcate and interpret seismic data accurately and control its quality with using lithology interpretation and electrical analysis of drilling. This process improves the quality and precision of the sequence stratigraphic division map, sedimentary facies map, sandstone thickness map, structural map and so on. The good results have been achieved in the risk exploration in Yanding area.

Key words: migration pathway , fluid features , reservoir critical property , sand body sealing , lithologic reservoirs , four-factor entrapping

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