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建立了一个考虑各种影 响因素的 泡沫有 效粘 度模型 以及一 个气液 两相 泡沫 驱数 学模 型，从 该模型 可以 看出：表面活性剂浓度越大，产生泡沫 液的粘度也越大，并呈直线上升 趋势． 岩石的 渗透率 越大，所产 生的泡 沫液的粘 度也越大 ，即在渗透率较高的介质中产生的 泡沫具有较强的降低气体渗透率的 能力． 有泡沫 时，地层的气相压力上升比 较慢，注采井呈现的压力梯度较大
A model of foam effective viscosity considering various influencing factors and a mathematic model of gas-liquid two-phase foam flooding are established. It can be seen from the model that the larger the concentration of surfactant, the larger the viscosity of the foam liquid is, Upward trend. The greater the permeability of the rock, the greater the viscosity of the resulting foamy liquid, ie the foam produced in the more permeable medium has a stronger ability to reduce the gas permeability. When there is foam, the vapor pressure in strata rises slowly, and the pressure gradient in well injection and production well is larger