Lithologic Reservoirs ›› 2015, Vol. 27 ›› Issue (3): 103-107.doi: 10.3969/j.issn.1673-8926.2015.03.016

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Application of constrained sparse spike inversion in the third member of Hetaoyuan Formation in Dupo Oilfield

ZHANG Yi,YIN Yanshu   

  1.  College of Geosciences ， Yangtze University ， Wuhan 430100 ， China
  • Online:2015-05-26 Published:2015-05-26

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Abstract:

 The reservoir in Dupo Oilfield is controlled by structure and channel sand body, and has fast lateral variation and well developed fracture, which restricts the development of oilfield in the late production. In order to make clear the reservoir distribution characteristics, we need to depict the development and distribution of sand body through seismic inversion technique. Based on the geologic, seismic and logging data, this paper carried out reservoir prediction of ⅡⅥ oil groups of the third member of Hetaoyuan Formation. According to the basic principle of constrained sparse spike inversion, carried out feasibility analysis, well-to-seismic calibration and wavelet extraction, formed frame model by using interpreted formation and fault, then established low frequency model, and finally completed the study on constrained sparse spike inversion by setting important parameters. Through analyzing inversion results, the development and distribution of sand body of the third member of Hetaoyuan Formation in Dupo Oilfield are clear, which depicts the distribution characteristics of reservoir to a certain extent and provides a reference for the next development and adjustment of Dupo Oilfield.

Key words: constrained sparse spike inversion, wavelet extraction, low frequency model, the third member of Hetaoyuan Formation, reservioir prediction, Dupo Oilfield, Dupo Oilfield

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