Lithologic Reservoirs ›› 2010, Vol. 22 ›› Issue (3): 91-94.doi: 10.3969/j.issn.1673-8926.2010.03.017

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Rock physics for remaining oil distribution prediction in water flood field

LIU Wenlin   

  1. Research Institute ofPetroleum Exploration&Development，PetroChina，Beijing 100083，China
  • Online:2010-09-15 Published:2010-09-15

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Abstract:

The velocity contrast caused by the reservoir property variation in long period of water flood recovery in the old fields of eastern China is obviously greater than that caused by oil displacement water．So seismic data can be used to predict the remaining oil distribution．Time lapse seismic is applied to obtain the 3D seismic amplitude difference before and after water flood recovery．Because of the seismic response difference of fluids．it is more effective than conventional hydrocarbon detection technology to identify the remaining oil distribution．The model and application show that practicability of time lapse seismic for predicting remaining oil distribution．Finally an approach is proposed that using time lapse seismicis to carry out pre-stack.

Key words: gas hydrate, forming conditions, forecasting model, influencing factors, Luojiazhai gas reservoir

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