Elastic polypropylene hollow fibers were obtained from the blend of polypropylene and paraffin oil which was extruded in melt and then cooled in a high stress field (phase separation occurred).
将聚丙烯和石蜡油的混合物熔融挤出，使之在较高的应力场下冷却和相分离，得到了弹性聚丙烯中空纤维。
High purity heavy liquid paraffin and low condensing point dewaxing oil are produced by urea complex using Daqing crude oil distilling cut as raw materials.
以大庆直馏柴油为原料，经异丙醇尿素脱蜡制得纯度较高的重质液体石蜡和低凝点脱蜡油。
Research has shown that, high paraffin content crude oil is not continental facies, and Marine facies organic matter can also generate crude oil with high paraffin content.
研究表明，高蜡原油并非来源于陆相，海相有机质也可以生成含蜡量较高的原油。
The Ordovician crude oil of Tahe oilfield is marine facies, but it does not contradict with high paraffin content.
塔河油田奥陶系原油来源于海相烃源岩与原油具高蜡特征并不矛盾。
High purity light liquid paraffin and low condensing point kerosene are produced by urea complex using Zhongyuan crude oil distilling cut as raw materials.
以中原原油直馏馏分为原料，用尿素络合法制得纯度较高的轻液体石蜡和低凝点煤油。
These bacteria can resist high temperature, produce biosurfactant and organic acid, and can degrade crude oil and paraffin.
实验证明这些细菌能够耐高温、产生表面活性剂和有机酸、对原油和石蜡具有强降解能力。
Conventional hot washing by moving hot washing truck ADAPTS oil Wells with high reservoir pressure and shallow depth of plunger and relatively minor paraffin problem.
活动热洗车常规热洗适合地层能量充足、下泵深度较浅、结蜡不太严重的的油井。
Conventional hot washing by moving hot washing truck ADAPTS oil Wells with high reservoir pressure and shallow depth of plunger and relatively minor paraffin problem.
活动热洗车常规热洗适合地层能量充足、下泵深度较浅、结蜡不太严重的的油井。
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