Boundary effect on liquid invasion in tight gas reservoirs

Li, Gao; Ren, Weiqing; Meng, Yingfeng; Feng, Yong; Sun, Ai-Sheng; Chu, Hengzhi

doi:10.2298/tsci1504393l

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…Song et al (2019a) proposed a new single-channel flow model for describing nonlinear flow in low-permeability reservoirs based on ABL theory. Most of previous studies (Li et al 2015a;Tian et al 2016;Chen et al 2018) investigated the effect of ABL on fluid flow in a single pipe, whereas real porous media are more complicated. Therefore, it is of great significance to study the influence of ABL by considering more complex and realistic porous media.…”

Section: Introductionmentioning

confidence: 99%

Flow simulation considering adsorption boundary layer based on digital rock and finite element method

Yang

Wang

et al. 2020

Pet. Sci.

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Due to the low permeability of tight reservoirs, throats play a significant role in controlling fluid flow. Although many studies have been conducted to investigate fluid flow in throats in the microscale domain, comparatively fewer works have been devoted to study the effect of adsorption boundary layer (ABL) in throats based on the digital rock method. By considering an ABL, we investigate its effects on fluid flow. We build digital rock model based on computed tomography technology. Then, microscopic pore structures are extracted with watershed segmentation and pore geometries are meshed through Delaunay triangulation approach. Finally, using the meshed digital simulation model and finite element method, we investigate the effects of viscosity and thickness of ABL on microscale flow. Our results demonstrate that viscosity and thickness of ABL are major factors that significantly hinder fluid flow in throats.

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Section: Introductionmentioning

confidence: 99%