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利用水膜减阻输送技术可提高超稠油管道的输送效率。使用长200m、管径108×6mm的试验管道研究了具有流体特性的超稠油在70～85℃、含水率在4%～12%条件下,水膜输送减阻率与含水率的关系。为了减小误差,分别对管段1(0~100m段)、管段2(100~200m段)和管段3(整条管段)进行试验研究。结果表明:将油流速度控制在0.05～0.11m/s,且在原油不发生乳化的前提下,在一定范围内,随着含水率的升高,超稠油水膜输送减阻率增大,当油品含水率为4%～6%时,减阻率的上升趋势最为明显;当含水率大于6%时,减阻率基本维持在90%;试验管段2由于温降相对较小,其减阻率最大值可达95%。
The use of water film drag reduction technology can increase the transmission of super heavy oil pipeline efficiency. The relationship between water film transport drag reduction and water cut was studied by using a test pipe with a length of 200 m and a pipe diameter of 108 × 6 mm when the super heavy oil with fluid characteristics is at 70 ~ 85 ℃ and the moisture content is 4% ~ 12%. In order to reduce the error, the pipe 1 (0 ~ 100m section), the pipe section 2 (100 ~ 200m section) and the pipe section 3 (the whole pipe section) were tested. The results show that the oil flow velocity is controlled at 0.05-0.11 m / s, and under the premise of no emulsification of crude oil, with the increase of water cut, the drag reduction rate of ultra heavy oil water film increases, When the moisture content of oil is 4% ~ 6%, the drag reduction rate is the most obvious. When the moisture content is more than 6%, the drag reduction rate is basically maintained at 90%. Because the temperature drop of test section 2 is relatively small, Drag reduction rate of up to 95%.