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用一个由30/40目砂充填的线性模型进行了一项在水驱过程中研究电位梯度对采油量、产水量和水一油比的影响的实验研究。在实验中,用了相对密度为0.8816的油和含有30,000ppm NaCl 的水。检验了范围从0.5V/cm 到7.5V/cm的直接电位梯度。用电位梯度穿过含油一水地层,使注入端为负极,采出端为正极。发现应用直接电位梯度提高了采油量,降低了产水量和水油比。而且,这些效果直接与应用的电位差的增高成正比,并且只有在见水后这些效果才比较明显。
An experimental study of the effects of potential gradient on oil production, water production and water-oil ratio was carried out using a linear model filled with 30/40 mesh sand. In the experiment, an oil with a relative density of 0.8816 and water containing 30,000 ppm NaCl were used. A direct potential gradient ranging from 0.5 V / cm to 7.5 V / cm was examined. With the potential gradient through the oil-bearing water formation, so that the negative injection side, mining side for the positive. It is found that the application of direct potential gradient increases oil production and reduces water production and water-oil ratio. Moreover, these effects are directly proportional to the increase in potential difference applied, and these effects are only noticeable when water is seen.