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苏桥油田的原油通过在集输模拟试验装置上进行不同流量、不同含水、不同油气比和不同输送温度的投球清蜡试验中,找出了油、气、水混输的流动规律。即油气混合阻力系数“λ”与油气混合雷诺数“Re_(Lg)”之间关系。利用华北油气混输热力及水力计算公式计算出油井集输管路的热力和压力损失。计算结果表明:苏桥油田的集输管路采用泡沫塑料黄夹克保温防腐,埋地1米深,井口投球,单管低温不加热输送工艺流程较为合理。油井投产时井口最低温度达-26℃,计量站达-15℃,投产顺利,生产正常。苏桥油田实行低温不加热输送工艺流程,节约大量基建投资和能源,很有推广价值。
The crude oil from Suqiao Oilfield can find out the law of mixed transportation of oil, gas and water through the experiment of pitching and waxing with different flow rates, different water contents, different oil-gas ratios and different conveying temperatures in a simulation test set. That is, the relationship between the mixed drag coefficient “λ” and the mixed Reynolds number “Re_ (Lg)” of oil and gas. The heat and pressure loss of the well gathering and transporting pipeline are calculated by using the heat and hydraulic calculation formula in North China. The calculation results show that the transmission pipeline of Suqiao Oilfield is made of foam yellow jacket for preservation and corrosion protection. The buried depth is 1m. Wellhead pitching and single tube low temperature non-heating conveying process are more reasonable. When the well is put into operation, the minimum wellhead temperature reaches -26 ℃ and the metering station reaches -15 ℃, and the production goes smoothly and the production is normal. Suqiao oilfield implementation of low temperature non-heating transport process, saving a lot of capital investment and energy, a great promotional value.