METADATA IN ENGLISH

About the journal

SEISMICHESKIE PRIBORY, ISSN: 0131-6230, eISSN: 2312-6965, DOI: 10.21455/si,

http://elibrary.ru/title_about.asp?id=25597

English Translation: Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online),

https://link.springer.com/journal/11990

Joint hyperbolic median filtering and inversion
for simultaneous pulse source separation

A.V. Tarasov1, A.A. Shuvalov1, A.I. Konkov1, V.I. Ignatev2,
B.M. Kashtan1, A.N. Oshkin3

1 Saint Petersburg State University, Saint Petersburg, Russia

2 Geodevice LLC, Saint Petersburg, Russia

3 Lomonosov Moscow State University, Moscow, Russia

Corresponding author: A.I. Konkov, e-mail: magister44@yandex.ru

Abstract. The paper is devoted to multisource technology – a new direction of geophysics, that provides high performance of seismic operations due to the simultaneous use of several seismic sources. The main task when deploying several sources is the procedure of separating interfering wave fields. In order to solve this problem, the authors propose a method of hyperbolic median filtering that uses the hyperbolicity of travel time curve of reflected waves in the common midpoint gather. Additionally, an inversion algorithm is deployed to correct the amplitudes of signals after separation. The paper discusses theoretical basics of the methods and the reasons for their implementation. In order to verify quality of the algorithm, it was tested on a configuration of seismic sources that allowed us to increase the maximum offset. The presented approach demonstrates acceptable results on synthetic data.

Keywords: multisource, simultaneous source separation, noise reduction, median filtering, marine seismic survey, filtering.

About the authors

TARASOV Aleksei Viktorovich – PhD candidate, Department of Earth’s Physics, Saint Petersburg State University. 7-9 Universitetskaya emb., 199034 Saint Petersburg. E-mail: aleksei.v.tarasov@gmail.com

SHUVALOV Andrei Anatolevich – PhD candidate, Department of Earth’s Physics, Saint Petersburg State University. 7-9 Universitetskaya emb., 199034 Saint Petersburg. E-mail: andrei. a.shuvalov@gmail.com

KONKOV Andrey Igorevich – PhD, Senior Research Fellow, Department of Earth’s Physics, Saint Petersburg State University. 7-9 Universitetskaya emb., 199034 Saint Petersburg. E-mail: magister44@yandex.ru

IGNATEV Vladimir Ivanovich – Chief Marketing Officer, Geodevice LLC. 41–89 Gavanskaya str., 199406 Saint Petersburg. E-mail: vi@geodevice.ru

KASHTAN Boris Markovich – Doctor of Science, Professor, Department of Earth’s Physics, Saint Petersburg State University. 7-9 Universitetskaya emb., 199034 Saint Petersburg. E-mail: bmkashtan@gmail.com

OSHKIN Alexander Nikolaevich – PhD, Professor Assistant, Department of Seismometry and Geoacoustics, Lomonosov Moscow State University. 1 Leninskie Gory str., 119991 Moscow. E-mail: a.oshkin@mail.com

Cite this article as: Tarasov A.V., Shuvalov A.A., Konkov A.I., Ignatev V.I., Kashtan B.M., Oshkin A.N. Joint hyperbolic median filtering and inversion for simultaneous pulse source separation, Seismicheskie Pribory, 2019, Vol. 55, no. 2, pp. 65–80. [in Russian]. https://doi.org/10.21455/ si2019.2-5