Lithologic Reservoirs ›› 2017, Vol. 29 ›› Issue (3): 110-117.doi: 10.3969/j.issn.1673-8926.2017.03.013

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Application of facies-controlled technique to bioclastic shoal reservoir prediction in less well zones

LI Jinlei1, CHEN Zuqing1, WANG Liangjun1, LIU Lihui2, LI Jianhai2   

  1. 1. Exploration Company, Sinopec, Chengdu 610041, China;
    2. Chengdu Rock Crystal Petroleum Science Technology Co., Ltd., Chengdu 610041, China
  • Received:2016-09-24 Revised:2016-12-28 Online:2017-05-21 Published:2017-05-21

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Abstract: The bioclastic shoal reservoir has strong heterogeneity, and it is difficult to accurately predict the reservoirs and physical properties by conventional geophysical prospecting methods. A set of integrated techniques of seismic microfacies analysis, facies-controlled reservoir inversion, facies-controlled porosity prediction was formed, to predict bioclastic shoal reservoirs and their properties. The results show that facies analysis techniques of plane sedimentary facies interpretation and profile seismic facies monitoring based on the waveform clustering can be used to realize seismic microfacies analysis. Under the control of sedimentary microfacies, the low frequency model was established by filling the average velocity of lithology in each facies, and then combined with the color inversion technology, the impedance inversion could be completed. This is an effective inversion method in the less well zones. According to the results of statistical rock physical analysis, the impedance could be transformed to porosity under the control of sedimentary structure and microfacies, and then the bioclastic shoal reservoir property prediction could be realized in the less well zones. Practical application has proved that this method is effective for the prediction of bioclastic shoal reservoirs.

Key words: new-added proved reserves, SEC rules, oil-bearing area, net pay, initial rate, decline rate, Shengli Oilfield

CLC Number: 

  • P631.4
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