The sedimentary process of meandering river under the influence of tide is quite different from the general meandering river. Influenced by the bidirectional flow of rivers and tides, the spatial distribution of reservoirs is complicated. In this paper, the fine dissection of point bars in meandering river under the influence of tides was carried out by using seismic sedimentology method and combining with core and logging data. The scale, spatial distribution, shape and superimposed style of different point bar units were determined, and the evolution law of point bar deposits in meandering river under the influence of tides was revealed. The development and evolution of point bars were reasoned and analyzed, the sedimentary process was reproduced, and the reservoir distribution and development mechanism in the study area were revealed. This study not only deepens the understanding of reservoirs, but also provides a good reference for the structural anatomy of sedimentary reservoirs by high identification of seismic data.
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