The property tests and application results showed that DSMPA had excellent dispersibility, emulsifying ability and high viscosity reducing efficiency for emulsifying Daqing Heidimiao heavy crude oils.

性能测试和应用结果表明，该产物具有良好的乳化力和分散力，对大庆黑帝庙稠油具有较好的乳化降粘效果。

youdao

Heavy fuel oils that come from residual oils of crude oil refining, are used as fuels of the steam boiler, furnace and gas turbine.

重质燃料油一般是原油经过炼制所产生的渣油经调合而成的，主要用作蒸汽锅炉、加热炉以及燃汽轮机的燃料。

youdao

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。

youdao

Further, heavy crude oils do not produce as much gasoline or fuel oil as light crude oil.

FORBES: Drill It, Dam it, Log It: How To Fight Eco-Tyranny In America

The majority new oil being developed are heavy, sour crude oils which have a high sulfur content, high viscosity, and high density.

FORBES: China's Not Going Green

Further the number of gallons of gasoline produced per barrel heavy crude oil is lower than for light crude oils.

FORBES: China's Not Going Green