Lithologic Reservoirs ›› 2010, Vol. 22 ›› Issue (1): 101-103.doi: 10.3969/j.issn.1673-8926.2010.01.019

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Applying waveform analysis to semi-quantitatively predict carbonate reservoir in Tazhong area

SUN Qinhua， LIU Xiaomei， LIU Jianxin， ZHANG Jijuan   

  1. Research Institute of Petroleum Exploration and Development-Northwest， PetroChina， Lanzhou 730020， China
  • Online:2010-03-15 Published:2010-03-15

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Abstract:

The carbonate reservoir is characterized by various types and strong inhomogeneity. Seismic waveform variation characteristic is used to semi-quantitatively identify and predict the distribution of high-quality reservoir. The basic principle, realization process and the key parameters of this technology are analyzed. The seismic response pattern is established in reservoir zone by well-seismic calibration, and the seismic waveform characteristics of different reservoirs are analyzed. Seismic trace waveform of target zone is classified by means of self-organizing neural network. The semi-quantitatively evaluation of carbonate reservoir is finally carried out. According to the prediction, two wells have been drilled, and the drilling result is consistent with the prediction result.

Key words: lithologic reservoirs, high resolution sequence stratigraphic framework, seismic reservoir prediction, DongyingFormation, Gaoliu area

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