油砂储层层内水层孔隙尺寸分布对注气的影响

IF 1.8 4区 工程技术 Q4 ENERGY & FUELS Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 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
CiteScore
2.70
自引率
0.00%
发文量
0
审稿时长
2.7 months
期刊介绍: OGST - Revue d''IFP Energies nouvelles is a journal concerning all disciplines and fields relevant to exploration, production, refining, petrochemicals, and the use and economics of petroleum, natural gas, and other sources of energy, in particular alternative energies with in view of the energy transition. OGST - Revue d''IFP Energies nouvelles has an Editorial Committee made up of 15 leading European personalities from universities and from industry, and is indexed in the major international bibliographical databases. The journal publishes review articles, in English or in French, and topical issues, giving an overview of the contributions of complementary disciplines in tackling contemporary problems. Each article includes a detailed abstract in English. However, a French translation of the summaries can be provided to readers on request. Summaries of all papers published in the revue from 1974 can be consulted on this site. Over 1 000 papers that have been published since 1997 are freely available in full text form (as pdf files). Currently, over 10 000 downloads are recorded per month. Researchers in the above fields are invited to submit an article. Rigorous selection of the articles is ensured by a review process that involves IFPEN and external experts as well as the members of the editorial committee. It is preferable to submit the articles in English, either as independent papers or in association with one of the upcoming topical issues.
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