Preprint Article Version 1 This version is not peer-reviewed

Study on the Impact of Microscopic Pore Structure Characteristics in Tight Sandstone on Microscopic Remaining Oil After Polymer Flooding

Version 1 : Received: 16 July 2024 / Approved: 17 July 2024 / Online: 17 July 2024 (13:36:58 CEST)

How to cite: Xianda, S.; Ling, Z.; Zhang, H.; Xu, C.; Qin, X.; Zeng, M. Study on the Impact of Microscopic Pore Structure Characteristics in Tight Sandstone on Microscopic Remaining Oil After Polymer Flooding. Preprints 2024, 2024071390. https://doi.org/10.20944/preprints202407.1390.v1 Xianda, S.; Ling, Z.; Zhang, H.; Xu, C.; Qin, X.; Zeng, M. Study on the Impact of Microscopic Pore Structure Characteristics in Tight Sandstone on Microscopic Remaining Oil After Polymer Flooding. Preprints 2024, 2024071390. https://doi.org/10.20944/preprints202407.1390.v1

Abstract

The characteristics of tight sandstone, such as small pores, complex pore structures, low permeability, and low porosity, make it difficult to accurately characterize its pore structure. This represents a major challenge in the exploration and development of tight sandstone oil and gas reservoirs. This article conducts a simulation study on the impact of characteristic parameters such as pore size, coordination number, pore-throat ratio, and wettability on microscopic remaining oil after polymer flooding, thereby quantifying the types of remaining oil.

Keywords

Microscopic pore structure; Remaining Oil type; Pore size; Coordination number; Pore-throat ratio; Wettability

Subject

Engineering, Energy and Fuel Technology

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