期刊文献+
共找到15篇文章
< 1 >
每页显示 20 50 100
透镜状“水包油”特殊岩性油藏 被引量:1
1
作者 邢正岩 陶国秀 许坚 《石油勘探与开发》 SCIE EI CAS CSCD 北大核心 2000年第6期58-59,共2页
透镜状“水包油”油藏是在储集层非均质严重的地区常见的一种油藏类型。造成“水包油”现象的主要原因是在沉积过程中储集层岩性有一定变化 ,经成岩演化后储集层物性也有一定差异。油气运移过程中 ,由于毛细管力的作用 ,孔喉半径大、渗... 透镜状“水包油”油藏是在储集层非均质严重的地区常见的一种油藏类型。造成“水包油”现象的主要原因是在沉积过程中储集层岩性有一定变化 ,经成岩演化后储集层物性也有一定差异。油气运移过程中 ,由于毛细管力的作用 ,孔喉半径大、渗透性好的生物灰岩中的水容易被排替 ,形成油层 ;而孔喉半径小、渗透性差的生物灰岩中的水不易被排替 ,形成水层。对该类油藏需要进行精细地层对比 ,并根据岩心、录井、试油、试采及电测井资料综合判断油水层。在射孔时应有选择地射开厚度较大、物性较好的层 ,避射物性差的层段 ,使该类难动用储量能得以开发动用。图 1参 2 (邢正岩摘 ) 展开更多
关键词 郑家 藏类型 透镜状 “水包油”岩性
下载PDF
“水包油”特殊岩性油藏机理研究 被引量:3
2
作者 陶国秀 《特种油气藏》 CAS CSCD 2005年第3期36-37,41,108,共4页
文中所介绍的这种油藏与常规油藏不同,它没有统一的油水界面,为呈薄的透镜状或条带状夹持在大段水层中的非常规的“水包油”特殊岩性油藏。从沉积条件、储层条件、油气运移等方面阐述了该种油藏特殊的形成机理。这种油藏的发现拓宽了对... 文中所介绍的这种油藏与常规油藏不同,它没有统一的油水界面,为呈薄的透镜状或条带状夹持在大段水层中的非常规的“水包油”特殊岩性油藏。从沉积条件、储层条件、油气运移等方面阐述了该种油藏特殊的形成机理。这种油藏的发现拓宽了对岩性油藏的认识范畴。 展开更多
关键词 特殊岩性 “水包油” 成藏机理 研究 郑家田郑6块
下载PDF
“水包油”型乳化重油燃烧与排放的实验研究 被引量:2
3
作者 龚景松 贾云涛 +1 位作者 何裕昆 傅维镳 《热能动力工程》 CAS CSCD 北大核心 2012年第1期51-54,134,共4页
实验研究了含水30%"水包油"型乳化重油的燃烧与污染物排放特性。燃烧在一维卧式炉上进行,采用专门针对乳化油设计的喷嘴、燃烧器和乳化油加热系统。实验过程中观察了喷嘴雾化和火焰状态,并测量了炉膛内不同剖面的温度分布、... 实验研究了含水30%"水包油"型乳化重油的燃烧与污染物排放特性。燃烧在一维卧式炉上进行,采用专门针对乳化油设计的喷嘴、燃烧器和乳化油加热系统。实验过程中观察了喷嘴雾化和火焰状态,并测量了炉膛内不同剖面的温度分布、氧气浓度分布和NO分布。"水包油"型乳化重油的燃烧实验表明,此类乳化重油完全可以在工业设备上代替柴油使用,对缓解我国的能源形势紧张和环境保护具有重要意义。 展开更多
关键词 “水包油”型乳化重 燃烧特性 喷嘴 节能 降低污染
原文传递
改变进气流量实现可调回流区位置的研究
4
作者 傅维镳 龚景松 《热能动力工程》 CAS CSCD 北大核心 2004年第5期495-497,共3页
提出了一种实现回流区可调的新方法 ,并对其特点进行了研究。根据流体力学的规律 ,实现了无移动部件和无高温部件 (钝件 )情况下回流区的可调性 ,满足不同油品正常燃烧时对回流区的要求 ,特别是在研究不同掺水率的“水包油”型乳化油的... 提出了一种实现回流区可调的新方法 ,并对其特点进行了研究。根据流体力学的规律 ,实现了无移动部件和无高温部件 (钝件 )情况下回流区的可调性 ,满足不同油品正常燃烧时对回流区的要求 ,特别是在研究不同掺水率的“水包油”型乳化油的燃烧特性时 ,其特点更为突出。此研究还为工业应用提供了支持。实验和计算结果表明 。 展开更多
关键词 可调回流区 “水包油”型乳化 燃烧器
下载PDF
Effects of Different Heavy Crude Oil Fractions on the Stability of Oil-in-water Emulsions —— Isolation of functional fractions from heavy crude oil and study of their properties 被引量:5
5
作者 范维玉 宋远明 +3 位作者 南国枝 赵福麟 肖建洪 李水平 《Petroleum Science》 SCIE CAS CSCD 2004年第3期66-71,共6页
The functional fractions (acid, basic, amphoteric and neutral fractions) are isolated from the Liaohe Du-84 heavy crude oil and Shengli Gudao Kenxi heavy crude oil by ion-exchange chromatography, but the conventional... The functional fractions (acid, basic, amphoteric and neutral fractions) are isolated from the Liaohe Du-84 heavy crude oil and Shengli Gudao Kenxi heavy crude oil by ion-exchange chromatography, but the conventional fractions (saturates, aromatics, resins and asphaltenes) are also isolated from the heavy crude oil. These components have been characterized by spectroscopic methods (FT-IR), namely acid number, basic nitrogen number, ultimate analysis and molecular weight measurements using vapor pressure osmometry (VPO). The ion-exchange chromatography method based on separation by a functional group induces a little change on the nature of the crudes and reasonable mass balances can be easily obtained. 展开更多
关键词 Heavy crude oil components oil in water emulsion
下载PDF
Electrostatic Enhancement of Coalescence of Oil Droplets(in Nanometer Scale) in Water Emulsion 被引量:3
6
作者 HOSSEINI M. SHAHAVI M.H. 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2012年第4期654-658,共5页
Oil droplets in nanometer scale which are dispersed in water cannot be separated easily. An attractive technique is carried out by electrical phenomena to demulsify oil in water emulsion. In this research, non-uniform... Oil droplets in nanometer scale which are dispersed in water cannot be separated easily. An attractive technique is carried out by electrical phenomena to demulsify oil in water emulsion. In this research, non-uniform electric field or dielectrophoresis (DEP) is applied to remove sunflower oil (which is dispersed in the water). Effectsof temperature, time and voltage (using AC-electric field) were considered to get the highest DEP-force (Fdi) and the best results. The oil particles sizes with average of approximately 76 nm have been shown using a ZetaSizer Nano ZS, Model ZEN 1600 (Malvem Instrument Ltd.). The maximum separation efficiency of 85% is obtained at the optimum temperature of 38 ℃ and voltage of 3000 V. 展开更多
关键词 DEMULSIFICATION oil/water emuision electric field dielectrophoresis
下载PDF
Measurement of water holdup in oil-in-water emulsions in wellbores using microwave resonance sensor 被引量:1
7
作者 Jin-Ningde Liu-Dongyang +1 位作者 Bai-Landi Ren-Yingyu 《Applied Geophysics》 SCIE CSCD 2021年第2期185-197,273,共14页
In this study,we propose a new method for water holdup measurement of oil-in-water emulsions with a microwave resonance sensor(MRS).The angle and length of the electrode plate are optimized by HFSS simulation software... In this study,we propose a new method for water holdup measurement of oil-in-water emulsions with a microwave resonance sensor(MRS).The angle and length of the electrode plate are optimized by HFSS simulation software.Using a vector network analyzer(VNA),a static calibration experiment is conducted,and the resonant frequency distribution of oil-in-water emulsions is analyzed within an 80%–100%water holdup range.In addition,we observe and analyze the micron-sized oil bubble structure in the emulsifi ed state with an optical microscope.On this basis,a dynamic experiment of oil-in-water emulsions with high water cut and low velocity in a vertical upward pipe is conducted.S_(21) response curves of the MRS are obtained by the VNA under diff erent working conditions in real time.Finally,we analyze the relationship between the resonant frequency and water cut.Experimental results show that the MRS has an average resolution of 0.096%water cut for high water cut oil-in-water emulsions within the frequency range of 2.2–2.8 GHz. 展开更多
关键词 oil-in-water emulsions water holdup measurement high water cut microwave resonance sensor
下载PDF
Kinetic and Phase Behaviors of Catalytic Cracking Dry Gas Hydrate in Water-in-Oil Emulsion 被引量:1
8
作者 马庆兰 黄强 +3 位作者 陈光进 王秀林 孙长宇 杨兰英 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2013年第3期295-300,共6页
The systematic experimental studies were performed on the hydrate formation kinetics and gas-hydrate equilibrium for a simulated catalytic cracking gas in the water-in-oil emulsion. The effect of temperature, pressure... The systematic experimental studies were performed on the hydrate formation kinetics and gas-hydrate equilibrium for a simulated catalytic cracking gas in the water-in-oil emulsion. The effect of temperature, pressure and initial gas-liquid ratio on the hydrate formation was studied, respectively. The data were obtained at pressures ranging from 3.5 to 5 MPa and temperatur.es from 274.15 to 277.15 K. The results showed that hydrogen and methane can be separated Irom the (~2+ ti'action by tOrming hydrate at around 273.15 K which is much higher temperature than that of the cryogenic separation method, and the hydrate formation rate can be enhanced in the wa- ter-in-oil emulsion compared to pure water. The experiments provided the basic data for designing the industrial process, and setting the suitable operational conditions. The measured data ot gas-hydrate equilibria were compared with the predictions by using the Chen-Guo hydrate thermodynamic model. 展开更多
关键词 HYDRATE catalytic cracking dry gas SEPARATION EMULSION
下载PDF
Testing for Nonlinearity in Dynamic Characteristics of Vertical Upward Oil-Gas-Water Three-phase Bubble and Slug Flows 被引量:1
9
作者 朱雷 金宁德 +2 位作者 高忠科 杜萌 王振亚 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2012年第5期870-882,共13页
Based on the conductance fluctuation signals measured from vertical upward oil-gas-water three-phase flow experiment, time frequency representation and surrogate data method were used to investigate dynamical characte... Based on the conductance fluctuation signals measured from vertical upward oil-gas-water three-phase flow experiment, time frequency representation and surrogate data method were used to investigate dynamical characteristics of oil-in-water type bubble and slug flows. The results indicate that oil-in-water type bubble flow will turn to deterministic motion with the increase of oil phase fraction f o and superficial gas velocity U sg under fixed flowrate of oil-water mixture Q mix . The dynamics of oil-in-water type slug flow becomes more complex with the increase of U sg under fixed flowrate of oil-water mixture. The change of f o leads to irregular influence on the dynamics of slug flow. These interesting findings suggest that the surrogate data method can be a faithful tool for characterizing dynamic characteristics of oil-in-water type bubble and slug flows. 展开更多
关键词 oil-gas-water three-phase flow conductaJace fluctuating signals time-frequency representation surrogate data method
下载PDF
Study on the New Grinding Fluids of Oils on Water
10
作者 魏源迁 钱怡 +1 位作者 中村隆 松原十三生 《Journal of Donghua University(English Edition)》 EI CAS 2003年第3期16-18,共3页
To fulfill a zero-emission in the process of grinding and thoroughly eliminate the influences of the conventional grinding fluids on the eco-environment as well as save up electric energy and reduce in production cost... To fulfill a zero-emission in the process of grinding and thoroughly eliminate the influences of the conventional grinding fluids on the eco-environment as well as save up electric energy and reduce in production costs, the new grinding fluids of botanic oils on water were developed, in which a lot of tiny water droplets attached with micro oil films were blown to the machining area by a compressing air-jet so good as to produce lubricating and cooling roles.In this study, grinding performances of the new fluids were investigated by comparison to the conventional ones such as emulsion on the plane NC grinder. 展开更多
关键词 Eco-machining Zero-emission ECO-ENVIRONMENT Grinding fluids Botanic oils EMULSION Grinding experiments Grinding characteristics
下载PDF
Hydrocarbon charging histories of the Ordovician reservoir in the Tahe oil field, Tarim Basin, China 被引量:3
11
作者 李纯泉 陈红汉 +2 位作者 李思田 张希明 陈汉林 《Journal of Zhejiang University Science》 EI CSCD 2004年第8期976-978,共3页
The Ordovician reservoir of the Tahe oil field went through many tectonic reconstructions, and was characterized by multiple hydrocarbon chargings. The aim of this study was to unravel the complex charging histories. ... The Ordovician reservoir of the Tahe oil field went through many tectonic reconstructions, and was characterized by multiple hydrocarbon chargings. The aim of this study was to unravel the complex charging histories. Systematic analysis of fluid inclusions was employed to complete the investigation. Fluorescence observation of oil inclusions under UV light, and microthermometry of both oil and aqueous inclusions in 105 core samples taken from the Ordovician reservoir indicated that the Ordovician reservoir underwent four oil chargings and a gas charging. The hydrocarbon chargings occurred at the late Hercynian, the Indo-Sinian and Yanshan, the early Himalaya, the middle Himalaya, and the late Himalaya,respectively. The critical hydrocarbon charging time was at the late Hercynian. 展开更多
关键词 Tahe oil field Ordovician reservoir Fluid inclusion Hydrocarbon charging
下载PDF
Kinetics for Describing the Creaming of Protein-Stabilized O/W Emulsions by Multiple Light Scattering
12
作者 Luis Alberto Panizzolo Luis Eduardo Mussio María Cristina Anon 《Journal of Food Science and Engineering》 2014年第5期236-243,共8页
In the present work, new kinetics to describe the creaming stability of oil-in-water emulsions determined by backscattering measurements (BS) is proposed. The emulsions assayed exhibited a different backscattering p... In the present work, new kinetics to describe the creaming stability of oil-in-water emulsions determined by backscattering measurements (BS) is proposed. The emulsions assayed exhibited a different backscattering profiles regarding creaming destabilization hyperbolic and sigmoid one. Hyperbolic behavior can be described by a second order kinetics, where k_h could be equaled to a rate constant that describes the creaming process and its values would indicate the stability of emulsions. While for the sigmoid BS pattern, kinetics with two terms, is adequate to describe the creaming process in contrast to kinetics previously reported in the literature. The kh value has the same meaning as before, and ks indicates the delaying effect on the creaming rate. 展开更多
关键词 EMULSION PROTEINS CREAMING KINETIC multiple light scattering.
下载PDF
Hydrodynamics and Mass Transfer of Oily Micro-emulsions in An External Loop Airlift Reactor
13
作者 Mona Ebrahimi Fakhari Mostafa Keshavarz Moraveji Reza Davarnejad 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2014年第3期267-273,共7页
This study reports an experimental investigation on hydrodynamics and mass transfer characteristics in a 15.6x10-3 m3 external loop airlift reactor for oil-in-water micro-emulsions with oil to water volume ratio (φ... This study reports an experimental investigation on hydrodynamics and mass transfer characteristics in a 15.6x10-3 m3 external loop airlift reactor for oil-in-water micro-emulsions with oil to water volume ratio (φ) rang- ing from 3% to 7% (by volume). For comparative purposes, experiments were also carried out with water. Increase in φ of micro-emulsion systems results in an increment in the gas holdup and a decrease in the volumetric gas-liquid oxygen transfer coefficient and liquid circulation velocity, attributed to the escalation in the viscosity of mi- cro-emulsions. The gas holdup and volumetric mass transfer coefficient for micro-emulsion systems are signifi- cantly higher than that of water system. Two correlations are developed to predict the gas holdup and oxygen trans- fer coefficient 展开更多
关键词 external loop airlitt reactor laydroclynarmcs MICRO-EMULSIONS oxygen transter
下载PDF
Aminopropyl-containing ionic liquid based organosilica as a novel and efficient adsorbent for removal of crystal violet from wastewaters
14
作者 Frood Shojaeipoor Bakhshali Masoumi +1 位作者 Mohammad Hossain Banakar Javad Rastegar 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2017年第9期1294-1302,共9页
Herein a novel aminopropyl-containing ionic liquid based organosilica(ILOS-NH_2) is prepared, characterized and applied as effective adsorbent for removal of crystal violet(CV) dye from wastewater. The ILOS-NH2 materi... Herein a novel aminopropyl-containing ionic liquid based organosilica(ILOS-NH_2) is prepared, characterized and applied as effective adsorbent for removal of crystal violet(CV) dye from wastewater. The ILOS-NH2 material was synthesized by hydrolysis and co-condensation of 1,3-bis-(3-trimethoxysilylpropyl)-imidazolium chloride(BTMSPIC) under acidic conditions followed by treatment with 3-aminopropyl-trimethoxysilane in toluene under reflux conditions. This material was characterized using scanning electron microscopy(SEM), diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS), thermal gravimetric analysis(TGA) and energy dispersive X-ray analysis(EDAX). The material was effectively used in the removal of crystal violet at ambient temperature and showed high capacity and stability under applied conditions. The efficacy of p H, contact time, adsorbent dose, initial dye concentration, temperature, and isotherm studies and the applicability of pseudo-first, second order and Elovich kinetic models have also been investigated. 展开更多
关键词 Ionic liquid based organosilica Aminopropyl-functionalized Crystal violet(CV) Isotherm Kinetic
下载PDF
Lubricating properties of oil-in-water emulsion with low oil concentration:Competitive wetting effect 被引量:5
15
作者 LIU ShuHai TAN GuiBin 《Science China(Technological Sciences)》 SCIE EI CAS 2013年第2期369-375,共7页
Oil-in-water (O/W) emulsions are widely used in metal working such as hot rolling and cutting. Three kinds of O/W emulsions with low oil concentration were prepared which include conventional emulsion (CE), miniem... Oil-in-water (O/W) emulsions are widely used in metal working such as hot rolling and cutting. Three kinds of O/W emulsions with low oil concentration were prepared which include conventional emulsion (CE), miniemulsion (MNE) and microemulsion (ME). The lubricating properties of O/W emulsions with low oil concentration were investigated using the tribological testers and the thin film interferometry based on the relative optical interference intensity method. The tribological test results under boundary lubrication show that the friction coefficient and the total losing weight can be clearly seen: CE 〈 MNE 〈 ME. The lubricating film thicknesses under elastohydrodynarnic lubrication and thin film lubrication show that a relationship of the film formation abilities: CE 〉 MNE 〉 ME. Competitive wetting behavior of water and oil on solid surface was confirmed to play an important role in the film formation and tribological behaviors of O/W emulsion. 展开更多
关键词 oil-in-water (O/W) emulsion water-based lubrication tribological properties lubricating film thickness competitivewetting
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部