Discussion on Fine Characterization Technology of Single Sand Body in Fluvial Reservoir

Geological Institute of the Fourth Oil Production Plant of Daqing Oilfield Co., Ltd, Daqing, Heilongjiang, 163511, China

Abstract

Fuyu oil layer of an oilfield is an ultra-low permeability oil layer. The remarkable characteristics of this oil layer are poor physical properties, low single well production, 2-4 layers of sand body longitudinally, large change frequency of plane upper layer and continuous characteristics. In order to realize effective oil layer development and ensure effective reservoir utilization. According to the poor physical properties of this oilfield, this paper analyzes the microscopic and macroscopic responsiveness of the reservoir, ensures effective permeability and thickness of permeable sand body, quantificationally depicts the plane distribution of permeable sand body, and effectively determines the distribution range of the reservoir according to the description of single sand body, thus providing a good technical means for subsequent scale production.