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In heavy oil reservoirs, steam channeling and steam override seriously decrease oil production and the ultimate oil recovery during steam flooding. Aiming at the two problems, some experiments were carried out to analyze the EOR mechanisms through injecting foaming agents along with steam injection in heavy oil reservoirs. An orthogonal method was employed to analyze the multiple factors on foam’s...
With the rapid development of the world economy, energy consumption and demand are rising quickly, and shale gas and other unconventional energy sources gradually attract more and more attention. The research of shale gas in China started late, and has yet to establish a sound system of shale gas target preferred. In this study, considering an actual shale gas area in South China, the fuzzy comprehensive...
Water flooding is an effective way for oilfield to improve the recovery. However, because of the reservoir heterogeneity, dominant channel of waterflooding is forming after a long-time water injection. In turn, the dominant seepage flow makes the injected water futile cycling. Most of the injected water passes through the dominant seepage unit and cannot effectively spread the low permeability layer,...
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