Flow properties of a waxy crude are influenced by shear history.
含蜡原油的流变性与其所经历的剪切历史有关。
The transportation cost of waxy crude oil pipeline consists of power and fuel consumption.
含蜡原油管道输送成本主要由动力消耗和燃料消耗两项组成。
The oscillation shear method is the most suitable for the viscoelasticity measurement of waxy crude oil.
法最适合于含蜡原油的粘弹性测量。
The ultrasonic backscattering can be a proper para meter to reveal the crystallization of waxy crude oil.
声背散射现象的出现是原油中蜡晶析出的直接标志,用声背散射信号反映蜡晶析出是合适的。
The rheology properties of Changqing waxy crude oil after different shearing action history was experimentally studied.
对不同剪切历史作用后的长庆含蜡原油流变性能进行实验研究。
The results show that the rheological behaviors of waxy crude oil depend on the experiment conditions to a large extent.
结果表明,含蜡原油的流变特性在很大程度上依赖于测试条件。
We has also done the experiment research on the rheology of waxy crude oil with depressant and discuss the mechanism of depressant.
对加剂原油的流变性质也进行了流变实验研究,对降凝机理进行了讨论。
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。
In this paper, the calculation of boundary value of waxy crude oil phase transformation is explained and the numerical analysis is done by example.
对含蜡原油相态转换边界值的计算进行描述,同时用实例进行数值分析。
The Position of waxy crude oil rheology was stated in the paper, which indicated that waxy crude oil rheology is an important branch of applied rheology.
本文论述了含蜡原油流变学的地位,指出应将含蜡原油流变学作为应用流变学的一个重要分支。
Some technology issues about safely pipelining the waxy crude oil is put forward based on the actual waxy crude oil pipelining condition of the pipeline.
根据黄青管道的实际输送工况,提出了蜡油安全输送工作应重视的问题。
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 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。
In the treatment of rheological information of waxy crude oil, the article analyzes the problems and the shortness existed in manual plotting and Newton-Raphson Method.
文章分析了在处理含蜡原油的流变资料时,用手工绘图和牛顿—拉夫森迭代法所存在的问题和不足。
After the shutdown of a buried waxy crude pipeline, wax crystals will start to precipitate when the crude cools to the temperature below the wax appearance temperature (WAT).
埋地热含蜡原油管道停输后,当管内原油温度降到析蜡点以下时,原油中的蜡晶将逐渐析出。
Introduced arc the applications of dynamic yield stress in low temperature transportation as well as in the course of restart after shutdown of the waxy crude oil transport system.
介绍了动屈服应力在含蜡原油低温输送和含蜡原油停输后再启动过程中的应用。
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 structure of waxy crude oil means that in the oil paraffin crystalline particles interconnect and form a kind of network which filled with the whole crude system under certain condition.
所谓含蜡原油结构是指一定条件下原油中蜡晶颗粒相互连接所形成的一种充满整个体系的网络。
The temperature drop characteristics of buried waxy crude pipelines in shutdown are summarized and compared with those in water pipelines, heavy crude pipelines and aerial waxy crude pipelines.
全面分析了埋地含蜡原油管道停输后管内原油的温降规律,对埋地含蜡原油管道与输水管道、稠油管道以及架空管道的停输温降规律进行了比较。
Two methods, direct and indirect methods, are usually involved in the measurement of waxy crude oil's dynamic yield stress. Stress relief method is one of the best ways in indirect measurement.
对含蜡原油动屈服应力的测量,通常采用的方法有直接法和间接法,间接法中的应力松弛法被认为是一种较好的测量方法。
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。
The viscoelasticity of waxy crude oil originates from its internal wax crystal amount and its complex wax crystal shape and structure, but the quantitative correlation between them is not established.
含蜡原油粘弹性源于其内部的蜡结晶量与复杂的蜡晶形态及结构,但二者间的定量关系仍未建立起来。
The paper introduces the full rheological curve of waxy. Crude oil, which has an important position in the research of rheology for crude oil.
本文阐述了含蜡原油全流变曲线在原油流变学研究中所占有的重要位置。
The paper introduces the full rheological curve of waxy. Crude oil, which has an important position in the research of rheology for crude oil.
本文阐述了含蜡原油全流变曲线在原油流变学研究中所占有的重要位置。
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