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首页> 外文期刊>Journal of Applied Mechanics and Technical Physics >OIL RECOVERY IN THE PRESENCE OF MICROBUBBLES IN THE FILTRATION FLOW
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OIL RECOVERY IN THE PRESENCE OF MICROBUBBLES IN THE FILTRATION FLOW

机译：过滤流中存在微气泡的采油

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摘要

This paper presents mathematical models for oil-gas flow taking into account the various processes due to the formation of gas micronuclei (microbubbles) in oil: slip of oil relative to the walls of the pore channels (gas lubrication), changes in oil viscosity, and motion of microbubles with respect to oil. We consider examples of oil flow in the near-wellbore zone for the case where a reduction in pressure to the saturation pressure leads to the formation of gas microbubbles and micronuclei and examples of the action of a water-gas mixture in the case where oil foams in the contact area with the injected gas, i.e., a finely dispersed mixture of oil and microbubbles is formed. The behavior of indicator curves for an oil well with the formation of microbubbles is simulated, and the effect of microbubbles on the oil recovery factor in a water-alternating-gas injection process is studied.
机译：本文介绍了油气流动的数学模型，其中考虑到了由于石油中形成的气体微核（微气泡）而引起的各种过程：石油相对于孔道壁的滑移（气体润滑），石油粘度的变化，和微气泡相对于油的运动。对于压力降低至饱和压力会导致形成气体微泡和微核的情况，我们考虑了在近井眼区域中的油流动的例子，以及在油起泡的情况下，水-气混合物的作用的例子在与注入气体的接触区域中，即形成油和微气泡的精细分散的混合物。模拟了具有微泡形成的油井指标曲线的行为，研究了微泡对注水交替气注入过程中油采收率的影响。

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