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吐哈油田鲁克沁采油厂开采的稠油密度为0.93g/mL,常温状态下如摩丝状,黑色、不透明,在地层和井底流动性能良好,在油管举升过程中越接近井口(温度越低)流动性越差,如果不采取降黏措施,33℃就失去流动性而停产。目前采用掺稀油管线和混合油管线双管生产,稀油通过空心抽油杆在井下2000m处掺入油管与稠油混合,稀释降黏后采出地面,如图1所示。掺入稀油密度不超过0.80g/mL,掺稀油系统压力为8~10MPa,稀稠比为1.151618
The density of heavy oil in the Luqqin Oil Production Plant in Tuha Oilfield is 0.93g / mL. It is mousse-like, black and opaque at normal temperature and has good flowability in the formation and bottom hole. The closer it is to the well head (temperature The lower the liquidity of the worse, if you do not take the viscosity reduction measures, 33 ℃ to lose mobility and stop production. At present, the production line is mixed with thin oil pipelines and mixed oil pipelines. The thin oil is mixed with heavy oil through a hollow sucker rod at 2000m downhole, and the ground is diluted and then reduced. Incorporation of dilute oil density of not more than 0.80g / mL, dilute oil system pressure of 8 ~ 10MPa, thin to thick ratio of 1.151618