Movable Fluid Saturation of Low-Permeability and Tight Sandstone Oil Reservoir: Taking Chang 6 Reservoir in Banqiao-Heshui Area as an Example

Abstract:

By analyzing the thin sections, physical property and nuclear magnetic resonance, the petrology character, pore types and the movable fluid saturation distribution characteristics of Chang 6 reservoir in Banqiao-Heshui area were tested. The research shows that the main lithology of Chang 6 reservoir in study area is lithic arkose. The pore space of reservoir mainly include the solution pores and the primary residual intergranular pores. Fine pore-tiny throat is the main pore configuration. The physical properties of Chang 6 reservoir in Banqiao-Heshui area are weak and it belongs to low-permeability and porosity oil reservoir. There are two models of T2 spectrum, including bimodal and unimodal modes. Movable fluid saturation and fluid porosity varies a lot, the reservoir can be classified as many types by movable fluid saturation and for each of them, its movable fluid saturation differs obviously.

• Periodical: Advanced Materials Research (Volumes 1092-1093)
• Pages: 1420-1423
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.1420
• Online since: March 2015
• Authors: Lei Cao*, Wei Sun, Rui Niu, Lei Huo, Fu Tao Qu, Teng Yun Xie
• Keywords: Banqiao-Heshui Area, Chang 6 Reservoir, Movable Fluid Saturation

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