4D SEISMIC EXPLORATION IN RUSSIA: EXPERIENCE, PROBLEMS AND PROSPECTS
Yu.P. Ampilov1,2, S.V. Gorbachev1
1Lomonosov Moscow State University, Moscow, Russia
2Oil and Gas Research Institute of the Russian Academy of Sciences, Moscow, Russia
Keywords: seismic monitoring, field development, 4D seismic survey, towed streamers, seafloor stations, reservoir pressure, reservoir flooding, fiber optic systems, seismic inversion, acoustic impedance
Abstract
4D seismic exploration is a series of consecutive time-separated 3D areal seismic surveys at oil and gas fields under development. Its purpose is to attempt to register changes in productive formations caused by hydrocarbon extraction from the subsoil in the seismic wave field and, on this basis, optimize the scheme for further field development.
This article provides the first comprehensive analysis of the current state of 4D seismic exploration in Russia. Unfortunately, there are only a few cases of using this technology, while global experience already includes hundreds of successful examples. Various options for its implementation at sea and on land are considered. Almost all known cases of 4D seismic exploration application in Russia, which are still few, are given and the future prospects of this method are analyzed.
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