CAJ | 학술논문

针对辽河油田加热开采稠油降黏工艺存在能耗过高这一问题，配制并筛选出两种新型水溶性乳化降粘剂WH-I和WH-II，对冷家稠油进行降粘工艺实验。试验结果表明，在50℃油水比7︰3的冷家稠油中添加2%降粘剂WH-I，降黏率为94.8%；将降粘剂WH-I浓度升至3%，降黏率为99.4%；添加3%降粘剂WH-II降黏率为98.1%。通过绘制降黏率和温度的关系曲线可以看出，降粘剂WH-I对乳化温度的变化具有一定的敏感度，随着温度的升高，添加降粘剂WH-I的乳状液降黏率缓慢下降。井口降黏后的稠油可以在提高原油采收率的同时满足举升和油田地面集输基本要求，为冷家稠油改善流动性提供一条新方向。
침대료하유전가열개채주유강점공예존재능모과고저일문제，배제병사선출량충신형수용성유화강점제WH-I화WH-II，대랭가주유진행강점공예실험。시험결과표명，재50℃유수비7︰3적랭가주유중첨가2%강점제WH-I，강점솔위94.8%；장강점제WH-I농도승지3%，강점솔위99.4%；첨가3%강점제WH-II강점솔위98.1%。통과회제강점솔화온도적관계곡선가이간출，강점제WH-I대유화온도적변화구유일정적민감도，수착온도적승고，첨가강점제WH-I적유상액강점솔완만하강。정구강점후적주유가이재제고원유채수솔적동시만족거승화유전지면집수기본요구，위랭가주유개선류동성제공일조신방향。
Since heating visbreaking for Liaohe heavy oil can result in higher energy loss, two new types of water-based emulsification viscosity breaking agents WH-I and WH-II were formulated and selected for Lengjia heavy oil visbreaking experiments. The results show that, when temperature is 50 ℃, moisture content is 30%, viscosity breaking agent is 2%WH-I, the visbreaking rate can reach 94.8%;When WH-I concentration is 3%, the visbreaking rate can reach 99.4%; adding 3% viscosity breaking agent WH-II, the visbreaking rate can reach 98.1%. The visbreaking rate-temperature curve shows that viscosity breaking agent WH-I is sensitive to different temperature. The visbreaking rate of viscosity breaking agent WH-I declines while temperature rises. The heavy oil visbreaking at wellhead can improve oil recovery and meet basic requirements of the lifting and oilfield surface gathering, which can provide a new direction to improve fluidity of Lengjia heavy oil.