The Open Petroleum Engineering Journal




(Discontinued)

ISSN: 1874-8341 ― Volume 12, 2019

Modified Theoretical Expression of Water Saturation in Oil-Water Fluid Flow Area


The Open Petroleum Engineering Journal, 2013, 6: 76-78

H.H. Liu

Department of Computer Engineering, Sichuan College of Architectural Technology, Chengdu, China.

Electronic publication date 15/11/2013
[DOI: 10.2174/1874834101306010076]

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Abstract:

Theoretical study of water saturation in oil-water fluid flow area is meaningful to the high, stabilized production and the improvement of ultimate recovery. Combining relational expression between relative permeability and water saturation with the fractional flow equation produced an expression of water cut changed by water saturation; Introducing Vieta's theorem to the differentiation of water cut gave a theoretical expression of water saturation in oil-water fluid flow area; Introducing the concept of frontal water saturation to these expressions give the continuous expression of water saturation. Applying this formula to certain sandstone reservoir in China achieves good results: In oil-water seepage process, water saturation is increasing by frontal distance, and the frontal distance increases over time. This new water saturation equation lays a base for the study of residual oil mobility and enhanced oil recovery.


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