Using Changqing and Qinghai waxy crude oils as research objects, the depressive effects of ethylene-vinyl acetate (EVA) copolymer pour point depressant on the waxy crude oils were studied.
以长庆、青海含蜡原油为研究对象，考察乙烯-醋酸乙烯酯共聚物(简称EVA)降凝剂对含蜡原油的降凝效果。
The crude oils exploited in our country's oilfields are mainly waxy crude oil, which have high solidification point and abnormal point and shows most complex rheology.
我国大多数油田开采的原油为石蜡基原油，其凝点和反常点温度较高，流变性质异常复杂。
More than 80% of crude oils produced in China are the high-pour-point waxy crude or the viscous heavy crude with poor flow ability.
我国所产原油80%以上为流动性较差的高凝含蜡原油和高粘重质原油。
More than 80% of crude oils produced in China are the high-pour-point waxy crude or the viscous heavy crude with poor flow ability.
我国所产原油80%以上为流动性较差的高凝含蜡原油和高粘重质原油。
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