Oil & Gas Geology ›› 2016, Vol. 37 ›› Issue (4): 591-597.doi: 10.11743/ogg20160417

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Study and application of high-order statistics constrained sparse blind deconvolution technique

Zhang Hua1,2, Pang Yanqing4, He Zhenhua1, Yang Bo5, He Guangming2,3, Wu Furong2, Chen Aiping2,3, Xie Xiaocui2,3   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China;
    2. Geophysical Exploration Company, Chuanqing Drilling Engineering Co. Ltd., CNPC, Chengdu, Sichuan 610213, China;
    3. Mountain Geophysical Technology Test Center, CNPC, Chengdu, Sichuan 610213, China;
    4. Xinjiang Oilfield Company, CNPC, Karamay, Xinjiang 834000, China;
    5. Luliang Field Operation District, Xinjiang Oilfieled Company, Karamay, Xinjiang 834000, China
  • Received:2015-03-02 Revised:2016-07-10 Online:2016-08-08 Published:2016-09-06

Abstract: Based on the basic theory of Bayesian and using the high precision wavelet estimated in high-order double spectrum domain as constraints,this paper realized sparse blind deconvolution frequency-expanding processing under the modified Cauchy criteria and obtained data that are more reliable and have higher frequency than the conventional deconvolution frequency-enhancing method.The results of numerical experiments and real data processing show that the wavelet estimated in the dual spectrum domain has higher accuracy,under the priori constraint of which the sparse blind deconvolution can greatly enhance the resolution of both P-wave and PS-wave.It can meet the requirement of resolute very thin layers,thus can be used as an effective method for high resolution processing.

Key words: wavelet estimation, frequency improving, deconvolution, reflectance, seismic exploration

CLC Number: