The International Geological and Geophysical Conference "GeoEurasia-2022" will be held from March 30 to April 01, 2022.
The conference is scheduled in online format.
Within the International Geological and Geophysical Conference "GeoEurasia-2022" we are pleased to invite you to attend the following reports:
1. Phase deconvolution of 3D seismic data. Technological and methodological aspects of a statistical algorithm application for phase spectrum correction.
The speaker: Ovchinnikov Kirill, Geophysicist, Seismotech Ltd.
The authors are: Finikov Dmitry, Ovchinnikov Kirill, Ryabinskiy Maxim
Nowadays, phase deconvolution has not gained popularity among geophysicists, although it has been discussed since the mid-80s of the last century. Partially, it was due to the lack of coverage of this topic in the industry and the difficulties of the obtained results verification. Traditionally, the question of the phase component of the signal is left to the stage of the interpretation and it is performed using wells, which do not provide sufficient statistics to obtain reliable estimates.
Many years of experience in seismic data processing shows the need of phase spectrum correction at the processing stage and the efficiency of the procedure when the parameters are chosen carefully and intelligently.
The authors believe they have succeeded in providing the necessary flexibility of the algorithm for the 3D observations processing and also in developing tools allowing the interpreter to control the process of phase spectrum correction. Technological and methodological aspects of the algorithm application are discussed in the report.
2. Evaluation and correction of the waveform using a multiple wave field.
The speaker: Ovchinnikov Kirill, Geophysicist, Seismotech Ltd.
The authors are: Finikov Dmitry, Ovchinnikov Kirill
The paper presents a new procedure of waveform correction involving multiple waves modeling according to the SRMP scheme. The physical meaning of the operator of the model field adaptation to the true multiples observed in real data is disclosed.
The method is applicable and effective for marine data processing, but, first of all, it is relevant for onshore data processing. The theoretical and applied issues are discussed in the report.
