Fine Study of Sand Body Based on High Precision Seismic Data and Its Application in Well Location Demonstration and Implementation

Abstract

AbstractIn the middle and late stage of oilfield development, tapping the potential of remaining oil enrichment area is an important means to stabilize production, which requires fine research on sand bodies, especially the superimposed sedimentary sand bodies of complex rivers. This paper takes s sand body of Bohai C oilfield as an example, shows the channel and sand body contemporaneous by river and sand fusion attribute, and proves the correctness of showing the channel in attributes through real drilling data. The relationship between the width and the depth of the meandering river with high curvature was studied, and several point bar sedimentary bodies in the flaky sand body were determined. This paper studies the development of mudstone in the inner side of point dam sand body and its influence on horizontal production wells, and puts forward the design scheme of horizontal wells for different similar point bars. Through the research of this paper, the fine research on the three-level configuration of high curvature meandering river sand body is realized, and based on this, the development mode of horizontal well in the remaining oil enrichment area is proposed, which has achieved good results in the actual production oilfield.KeywordsReservoir configuration researchFine study of composite sand bodyDescription of river courseHorizontal well development