油砂储层层内水层孔隙尺寸分布对注气的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-01-01 DOI:10.2516/ogst/2020047

Jinze Xu, Zhangxin Chen, Ran Li

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引用次数: 22

摘要

在加拿大油砂油田中广泛报道了信息水区。为了给小偷区加压，其中一个措施就是注入气体。然而，基于孔隙尺寸分布的注气能力评价仍然是一个很大的挑战。该研究提供了一种多尺度的方法来研究孔隙尺寸分布对层内水层注气能力的影响。结果表明，孔隙网络越不复杂、越离散，气体有效渗透率越高。随着孔隙网络复杂性的提高和离散性的降低，有效渗透率随含气饱和度的增加而减弱。孔隙网络越不复杂、越离散，越有利于提高注气能力。

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Impacts of pore size distribution on gas injection in intraformational water zones in oil sands reservoirs

Intraformational water zones are widely reported in Canadian oil sands fields. In order to pressurize a thief zone, one of the initiatives is to inject gas. However, the evaluation of gas injectivity based on a pore size distribution is still a big challenge. This study provides a multi-scale approach to study the effect of a pore size distribution on gas injectivity in intraformational water zones. The results indicate the gas effective permeability increases in a less complex and more discrete pore network. The enhancement of gas effective permeability with increased gas saturation weakens with higher complexity and lower discreteness of a pore network. A less complex and more discrete pore network better benefits the gas injectivity index.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.