西南石油大学学报(自然科学版)

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Application of Seismic Technology in Volcanic Reservoir Prediction

Zhu Chao1, Gong Qingshun1, Huang Geping1, Wu Yiping2   

  1. 1. PetroChina Hangzhou Research Institute of Geology,Hangzhou,Zhejiang 310023,China
    2. College of Geosciences,China University of Petroleum,Changping,Beijing 102249,China
  • Online:2013-10-20 Published:2013-10-20

Abstract:

Seismic technology represented by seismic attribute and inversion is the universal and effective technology for
reservoir prediction. Taking for example volcanic rocks in Honghaoershute Sag of Erlian Basin,by well-seismic calibration,
we summarized reflection characters of volcanic rocks on the seismic section and horizontal time slice and then identified the
volcanic rock. As volcanic reservoir has strong heterogeneity and conventional seismic inversion is too dependent on module,
we tried to extrapolate the distributions of volcanic reservoir by applying AVF inversion and reservoir-parameter inversion based
on BP neural network. In the end,we analyzed the two inversion results and pointed out the exact effective reservoir zones and
non-reservoir zones,which accorded well with the real datum. We believe the findings can effectively guide the exploration
of volcanic rocks. This technology and method on reservoir prediction can be used for reference to especial rocks,which has
strong heterogeneity.

Key words: volcanic reservoir, AVF inversion, reservoir-parameter inversion, Honghaoershute Sag, Erlian Basin