Modeling of the reservoir architecture of point bars of meandering rivers
N. Fedorov and V. Klimov
Event name: Tyumen 2019
Session: Reservoir / Проблемы качества прогноза свойств резервуаров в межскважинном пространстве
Publication date: 25 March 2019
Info: Extended abstract, PDF ( 734.33Kb )
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This paper discusses the features of the geological modeling of the point bars of meandering rivers identified by seismic data, taking into account the genetic features of the formation during the transverse and longitudinal migration of the river bed. According to the results of interpretation of the spectral decomposition the facies were identified in terms of the longitudinal and transverse migration of the river bed. Based on the borehole data and genetic prerequisites for the formation of this type of sediments, property cubes were modeled, the analysis of which revealed the most promising areas with the best reservoir properties. The used approach to modeling of meandering rivers sediments made it possible to create a geological model that changes not so much the reservoir volume in the reservoir but its internal architecture, which is based on genetic prerequisites and core and geophysical data analysis. The proposed technique describes the structure of the reservoir qualitatively and allows you to simulate the structure of the point bars on neighboring deposits subsequently, in the conditions of the almost complete lack of data.