Solid precipitation

The Research and Application of the Model of Organic Solid Precipitation

有机固相沉积模型研究与应用

Summarization of the research on solid precipitation and gas-liquid-solid phase equilibrium

固相沉积及气-液-固三相相平衡研究发展综述

The laser technique can test solid precipitation at high temperature and pressure for a system of oil and gas .

激光法适合于高温、高压以及含气原油体系的固相沉积点的测定。

Wax and asphalt solid precipitation in oil and gas recovering process is a problem considering very much at home and abroad in the petroleum industry .

油气开采过程中的蜡质和沥青质等固相沉积问题，是目前国内外研究的热点和难点。

The organic solid precipitation happening in the recovering process along with the changes of thermodynamic conditions , such as temperature , pressure and composition , influences the oil and gas production severely .

在油气生产的各个环节，随着温度、压力和轻质组分逸出等热力学条件的变化所产生的有机固相沉积问题，给油气田生产造成了严重的危害；

This model can offer a prediction method for prevention damage from solid precipitation in the process of production , transportation , process and flooding of injecting gas when the temperature , pressure or composition changes .

为油气开采过程、集输过程、石油化工生产过程以及气驱采油过程，由于温度、压力或组成的改变而造成的石蜡、沥青等有机固相沉积给生产造成的危害，提供了预测方法。

To conduct the phase equilibrium calculation , the phase equilibrium thermodynamic model of 3 phases , which can describe the organic solid precipitation of oil and gas system in the reservoir , is also established .

为完成油相、气相和有机固相的相平衡计算，还建立了考虑有机固相沉积、适合于地下油气藏烃类体系的三相相平衡热力学模型；

Freezing is the weather phenomena that the temperature is below 0 ℃ in winter , and the cooling and freezing precipitation or solid precipitation and icing phenomena . It is the formation in particular weather conditions , and highly localized .

凝冻是指冬季出现的温度低于0℃，有冷却降水或固体降水和结冰现象发生的天气现象，它是在特定的天气条件下形成的，并具有高度局域性。

Production of Sandy alumina by a High solid Content Precipitation

高固含铝酸钠溶液生产砂状氧化铝技术

However , further increase of the concentration results primarily in solid solution precipitation .

Zn（Ⅱ）平衡浓度进一步增大，以固体溶液沉积为主。

Effect of Heating Temperature on Solid Solution Precipitation of Second Phase Particles and Grain Growth

加热温度对含铌Q345钢第二相粒子固溶析出及晶粒长大的影响

Efficient modeling technique of high molecular weight organic solid hydrocarbons precipitation in crude oil

有效模拟原油中高分子有机烃类沉降量方法

Landscape painting formed since Wei and Jin Dynasties has been the most solid emotional precipitation and the most obscure spiritual hope .

山水画自魏晋南北朝形成以来便成为了中国人最厚重的情思积淀、最隐晦的精神寄托。

Solid phase precipitation accounts for 46 % of ground precipitation amount and graupel-fall is 65 % of solid phase precipitation . Graupel particles grow by accretion with rainwater and cloud water .

在地面降水中，固态降水占降水总量的46%，而霰占固态降水的65%，霰主要靠撞冻雨水和云水增长；

Many methods are applied for preparing the ceramic powders , such as solid state reaction , precipitation , sol-gel and hydrothermal method and so on .

用于合成陶瓷粉体的方法有多种，如：固相合成法、沉淀法、溶胶凝胶法、水热法等。

The methods of extraction and eliminate impurity in taxol pretreatment including liquid-liquid extractin , solid phase extraction , precipitation , supercritical fluid extraction , resin chromatography are reviewed .

对紫杉醇的提取和前处理技术包括液-液萃取法、固相萃取法、沉淀法、超临界流体萃取法、树脂层析法的研究进展进行了较全面的综述。

The high strength comes from strain hardening and precipitation strengthening of the precipitated chromium particles . And the high electroconductivity is mainly due to the composition close to Cu Zn solid solution matrix after precipitation .

合金高强度主要来源于加工硬化和第二相铬粒子的析出强化，合金的高导电性则主要来源于贫化后成份接近于铜锌固溶体的基体。

The characteristic of gold-rich phase diagrams in binary Au alloy systems , the tendency of distribution and of strengthening of alloying elements in and to gold were summarized in present paper . The parameters of solid solution strengthening and precipitation strengthening of alloying elements to gold were analyzed .

本文讨论了二元Au合金系中富Au端相图特征，合金元素在Au合金中分布及强化与脆化倾向性，分析了合金元素对Au的固溶强化参数和沉淀强化参数。

The gas liquid solid three phases balance model is used to study the wax solid precipitation for an oil and gas system . The calculation results demonstrate that the state conversion of gas liquid solid three phases happens as temperature and pressure changes .

将该气-液-固三相相平衡热力学模型应用于某一油气体系的蜡固相沉积模拟研究，模拟结果表明，在温度、压力改变过程中，出现了气液固三相相态转换；