Multichannel sparse spike deconvolution based on dynamic time warping

• Autorzy: Zhao Xiaowei , Wang Shangxu , Yuan Sanyi , Cheng Liang , Cai Youjun

Identyfikatory

DOI

10.1007/s11600-021-00571-z

• Języki publikacji: EN

Abstrakty

EN

Seismic sparse spike deconvolution is commonly used to invert for subsurface refectivity series and is usually implemented as an inversion scheme. Conventional sparse spike deconvolution method does not utilize the relationships among adjacent traces resulting in instability and poor lateral continuity of the inverted result. We propose a multichannel sparse spike deconvolution method with a sparsity-promoting constraint and an extra lateral constraint exploiting the spatial relationships among adjacent seismic traces. Firstly, the dynamic time warping (DTW) is performed between any two adjoining seismic traces to obtain the warping path (a series of estimated time shifts of one seismic trace relative to the other). Based on the assumption that if the inverted refectivity series is convolved with the same wavelet used for inversion, the newly constructed adjoining seismic traces shall also be conformable to the relationships exploited among the original seismic traces by DTW. A diference operator is constructed with the estimated time shifts to guarantee the diference operation is performed between corresponding time samples on adjoining seismic traces and the inversion is regularized with this diference operator as the lateral constraint. Synthetic and real data case studies confrm that inverted result obtained by the proposed method is superior to those obtained by single-channel sparse spike deconvolution method and another multichannel deconvolution method based on horizontal frst-order derivative constraint in both signal-to-noise ratio and lateral continuity.

Słowa kluczowe

EN

multichannel; deconvolution; dynamic time warping; lateral continuity

PL

wielokanałowy; dekonwolucja; dopasowanie czasu dynamiczne; ciągłość boczna

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2021
• Tom: Vol. 69, no. 3
• Strony: 783--793
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Zhao Xiaowei

• State Key Laboratory of Petroleum Resources and Prospecting, CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum, Changping, 102249 Beijing, China

autor

Wang Shangxu

• State Key Laboratory of Petroleum Resources and Prospecting, CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum, Changping, 102249 Beijing, China

autor

Yuan Sanyi

• State Key Laboratory of Petroleum Resources and Prospecting, CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum, Changping, 102249 Beijing, China

autor

Cheng Liang

• State Key Laboratory of Petroleum Resources and Prospecting, CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum, Changping, 102249 Beijing, China
• CNOOC Ltd Tian Jin Branch, 300459 Tianjin, China

autor

Cai Youjun

• Exploration and Development Research Institute, PetroChina Huabei Oilfeld Company, 062552 Renqiu, Hebei, China

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