Architecture Characterization and Fluid Migration Mechanism of Composite Point Dam in Meandering River

doi:10.11885/j.issn.16745086.2020.05.18.02

Abstract

Abstract: Based on the abundant data resources and the advantage of inter-well distance under the condition of high density well pattern, the characterization of the sand body architecture, remaining oil analysis and fluid migration mechanism of a meandering river point dam in a sedimentary unit in a block in Changyuan Daqing were studied. Aiming at the problem of multi-solutions of quantitative identification of point dam architecture elements, the parameter correction of the calculated results was carried out through the internal morphological difference of the meandering river single sand body, so as to realize the deterministic quantitative characterization of configuration elements. At the same time, the modeling idea of using structure to represent the shape of sand body is proposed, and the 3D characterization of point bar sand body internal configuration is realized by directional grid editing technology. Finally, through the numerical simulation technology to analyze the distribution of remaining oil and fluid migration, to clarify the mechanism of fluid migration under the influence of configuration, and put forward the next direction of tapping potential.

Key words: meandering river point dam, 3D characterization of architecture, parameter correction, the directional grid editing technology, fluid migration mechanism

CLC Number:

TE122

WANG Dacheng, LIU Yikun, BAI Junhui, FU Qingchun, CHEN Fen. Architecture Characterization and Fluid Migration Mechanism of Composite Point Dam in Meandering River[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2021, 43(3): 25-36.

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