This article refers to what PPD can undermine the special structure of thick crude oil, and crude oil viscosity and pour point reduction in the chemical agent.
本文所说降凝剂是指能破坏特稠原油的结构力，使原油粘度和凝点降低的化学剂。
Viscosity: viscosity is the crude oil in the flow caused by the internal frictional resistance, crude oil viscosity depends on temperature, pressure, dissolved gas and its chemical composition.
粘度：原油粘度是指原油在流动时所引起的内部摩擦阻力，原油粘度大小取决于温度、压力、溶解气量及其化学组成。
An analysis is made in the paper of the theoretical basis on which the crude oil of high pour point and high viscosity is transported by low viscous liquid jacket.
本文分析了低粘液环输送高凝、高粘原油的理论基础，并在试验管道上成功地实现了高凝原油的低粘液环输送。
A method to reduce the viscosity of crude oil in oil production using combination of chemical and physical viscosity - reducing means was introduced.
介绍了稠油开采过程中因稠油粘度过高采用的物理与化学相结合的降粘方法。
On the basis of comprehension of process flow, process mechanism and principle of crude oil distillation, we analyze various factors which affect viscosity and flash point.
在了解了工艺流程、工艺机理和原油蒸馏的原理的基础之上，分析了影响粘度和闪点的各种因素。
Crude oil in primary and secondary gun barrels at central gathering station always foams in winter for high viscosity of the crude oil in Gudao oilfield.
孤岛油田原油粘度大，联合站一次、二次沉降罐的原油在冬季经常起泡。
Highly viscous crude oil is commonly transported with mixing technique (heavy crude and light crude) in order to reduce viscosity.
高粘原油降粘通常采用稠油与轻质原油混合输送的方式。
Crude oil in Fularchi heavy oilfield has high viscosity and low mobility. Conventional development is difficult and the effect of cyclic steam stimulation is also not ideal.
富拉尔基稠油油田原油粘度高，地下流动能力较低，常规开采较为困难，而蒸汽吞吐开采效果也不理想。
When crude oil pipelines shutdown, the temperature of the oil left in the line drops and the viscosity increases.
热油管道停输后，管内存油的温度下降，粘度上升。
Daqing crude oil production using a high viscosity index base oil and 25 oil-based transformer oil, add antioxidant, anti-rust additives, such as by modulation.
采用大庆原油生产的高粘度指数基础油和25号变压器油为基础油，加入抗氧、防锈等多种添加剂调制而成。
The flow rate of reservoir crude depends on bottom-hole pressure, reservoir pressure, rock permeability, and the viscosity of the oil.
储集层里原油的流速取决于井底压力、油层压力、岩石渗透率和原油粘度。
Thee flow rate of reservoir crude depends on bottom-hole pressure, reservoir pressure, rock permeability, and the viscosity of the oil.
译：储集层里原油的流速取决于井底压力、油层压力、岩石渗透率和原油粘度。
The related performance between D943 oxidization and rotary oxygen shoot was studied by turbineoil, HL hydraulic oil and base oil of every kind of viscosity produced from Daqing crude oil.
对大庆原油生产的透平油、HL液压油及各粘度等级基础油来讨论D943氧化与旋转氧弹法氧化二者之间的相关性。
A high efficient complex viscosity reduction system XGD was developed for the crude oil in superheavy oil reservoir with high resin and asphaltene content and complicated layer structure.
针对特超稠油油藏原油胶质、沥青质含量高，层状结构复杂的特点，研制了高效复合降粘体系XGD并对其性能进行了评价。
The flow of crude oil and crude oil on the freezing point and viscosity.
原油的流动性与原油的凝固点和粘度有关。
So flow pattern character can be used to estimate the flex point temperature of the crude oil, which will help for selecting the available viscosity reducing method and the viscosity reduction depth.
因此，可以根据流态特征来估计该原油的拐点温度，为选择合适的降粘方法和降粘深度提供了技术指导。
In a word, theoretical studies and lab experiments have both showed that it is possible to reduce the viscosity of crude oil when the ultrasound has a reasonable intensity and frequency.
总之，理论研究及室内实验均表明在合理的作用强度和频率下，利用超声波降低原油粘度是可行的。
The viscosity, IFTs, and wax component of the crude oil produced by microbial flooding are reduced from 42.
采出原油的黏度、油水界面张力和含蜡质量分数分别由42。
Particularly in the course of recovering the oil floating water surface, the ways and the rate of recovery directly depends on the viscosity and temperature-viscosity of crude oil.
尤其在水面浮油的回收过程中，回收方式的选择和回收率直接取决于原油的粘性及其粘温特性。
At normal temperatures, the oil driving efficiency and the sweep efficiency of water driving are low, and the crude viscosity increases after water drive.
常温驱油效率低，水驱波及系数小，且水驱后原油黏度增加。
Waxy crude oil presents different rheological property with different forms of wax existing in it and consequently shows different viscosity - temperature curves.
含蜡原油中所含的蜡处于不同形态，呈显出不同流变特性，从而使其粘温曲线不同。
The effect of temperature on the distorting and breaking up of droplets is produced mainly by changing the properties of crude oil, especially the viscosity.
温度改变原油性质来影响水滴的变形断裂，其中粘性阻力起主导作用。
The higher concentration of crude oil, the higher interfacial shear viscosity.
原油浓度越大，界面剪切黏度越大；
Oil drilling mud dispersant and crude oil emulsification viscosity reduction agent.
原油钻井泥浆分散剂、原油乳化降粘剂。
The density, viscosity and heat capacity of waxy crude oil is changed along with the temperature drop and flow type and the flow patterns are different along the pipe during the design and operation.
含蜡热油管道在设计及实际运行过程中，油品密度、粘度、比热容沿程随温度变化，沿线流型与流态也不断变化，这些都是计算管道温降必须考虑的因素。
Add different for different crude oil pour point depressant, dispersant or viscosity reducer can improve low-temperature fluidity of crude oil.
针对不同原油加入不同降凝剂、分散剂或降粘剂可以改善原油的低温流动性。
Dispersant and crude oil emulsification viscosity reduction agent.
分散剂、原油乳化降粘剂。
DFA is a low molecule organic compound, with the oil solution ratio as high as 99.9%. At the same time, it plays no role in the viscosity development of crude oil.
DFA为有机低分子量化合物，不溶于水，但极易溶于煤油，在煤油中的油溶率高达99.9%，而且对原油粘度基本无影响。
DFA is a low molecule organic compound, with the oil solution ratio as high as 99.9%. At the same time, it plays no role in the viscosity development of crude oil.
DFA为有机低分子量化合物，不溶于水，但极易溶于煤油，在煤油中的油溶率高达99.9%，而且对原油粘度基本无影响。
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