改善稠油渗流流变性的试验

doi:10.11743/ogg20050318

Abstract

Abstract:

Non-Newtonian flow characteristic of heavy oil is the main reason resulting in low oil recovery rate and low recovery factor in heavy oil reservoir.ZHSS-01 surfactant system can form reverse emulsion when it is mixed with heavy oil in the reservoir in a relatively wide range of temperature(30-71℃),relatively high salinity(16×10⁴ mg/ L)and relatively high hardness of water (1.1×10⁴ mg/L),which would lead to a viscosity breaking effectiveness of over 98%.As a result,the rheological characteristics of percolation flow of heavy oil around the wellbore can be improved,fihrational resistance of heavy oil in the vicinity of the wellbore is lowered,and oil production rate is increased.Experimental study shows that recovery factor can be enhanced over 3 % when heavy oil being displaced with ZHSS-01 surfactant system.

Key words: mechanics of percolation flow through porous media, rheological characteristics, surfactant, heavy oil

CLC Number:

TE313.7

Wang Bu'e, Zheng Huiguang. Experimental study of improving rheological characteristics of heavy oil's percolation flow[J]. Oil & Gas Geology, 2005, 26(3): 370-373.

References

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Experimental study of improving rheological characteristics of heavy oil's percolation flow

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