Stable absorption compensation with lateral constraint

• Autorzy: Ma Xiong , Li Guofa , Li Hao , Li Jiaojiao , Fan Xu

Identyfikatory

DOI

10.1007/s11600-020-00453-w

• Języki publikacji: EN

Abstrakty

EN

The presence of seismic absorption distorts seismic record and reduces seismogram resolution, which can be partially compensated by application of absorption compensation algorithms. Conventional absorption compensation techniques are based on 1D forward model with each seismic trace being compensated independently. Therefore, the 2D results combined by each compensation trace may be noisy and discontinuity. To eliminate this issue, we extend the 1D forward model to the 2D forward system and further add an additional lateral constraint to the compensation algorithm for enforcing the lateral continuity of the compensated section. Solving the proposed laterally constrained absorption compensation (LCAC) problem, we simultaneously obtain the multiple compensated traces with lateral smoother transition and higher signal-to-noise ratio (S/N). We testify the efectiveness of the proposed method by applying both synthetic and feld data. Synthetic data examples demonstrate the superior performance of the LCAC algorithm in terms of improving algorithmic stability and protecting lateral continuity. The feld data tests further indicate its ability to not only improve seismic resolution, but also inhibit the amplifcation of high-frequency noise.

Słowa kluczowe

EN

absorption compensation; lateral constraint; seismic resolution; lateral continuity

PL

kompensacja absorpcji; ograniczenie boczne; rozdzielczość sejsmiczna; ciągłość boczna

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2020
• Tom: Vol. 68, no. 4
• Strony: 1039--1048
• Opis fizyczny: Bibliogr. 44 poz.

Twórcy

autor

Ma Xiong

• China University of Petroleum-Beijing, School of Geophysics, State Key Lab of Petroleum Resources and Prospecting, Key Lab of Geophysical Exploration of CNPC, Changping, Beijing 102249, China

autor

Li Guofa

• China University of Petroleum-Beijing, School of Geophysics, State Key Lab of Petroleum Resources and Prospecting, Key Lab of Geophysical Exploration of CNPC, Changping, Beijing 102249, China

autor

Li Hao

• China University of Petroleum-Beijing, School of Geophysics, State Key Lab of Petroleum Resources and Prospecting, Key Lab of Geophysical Exploration of CNPC, Changping, Beijing 102249, China

autor

Li Jiaojiao

• China University of Petroleum-Beijing, School of Geophysics, State Key Lab of Petroleum Resources and Prospecting, Key Lab of Geophysical Exploration of CNPC, Changping, Beijing 102249, China

autor

Fan Xu

• Institute of Geophysics, Institute of Exploration and Development, Xinjiang Oilfeld, Ürümqi 830000, Xinjiang, China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)