Investigation of the hydrodynamic characteristics of the elements of the multidimensional seismic streamer research system

Abstract

Seismic methods are one of the main sources of information about the deep structure of the earth's crust covered with water. A promising area of application remains the study of the geological structure of water areas, including for determining the location of deposits of oil, gas and other minerals. Despite the leading positions of the Russian Federation in the world in the extraction of oil and gas from the sea shelves, the technical re-equipment of the seismic survey fleet is carried out slowly and at the expense of the secondary market. In this paper, some issues of designing seismic streamers are considered. The object of research is seismic streamers, consisting of geophones connected in series by sections into one or more lines (streamers). For a more detailed study of geological objects and tracking the parameters of the wave field in the process of field development, multidimensional (three-dimensional) seismic survey is relevant, carried out by a seismic streamer, consisting of many streamers spaced both in depth and in width. In this case, contact between neighboring braids is not allowed. This paper presents the results of calculations of hydrodynamic forces that arise when towing elements of the diversion system of a multidimensional seismic streamer. A method for implementing a multidimensional seismic streamer using hydrodynamic diverters is considered. The value of the required area of the bearing surface of the diverter is determined. Assumptions are made to improve the system.