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Investigation of Physical Properties of Nano Crude Petroleum: Increasing Oil Flow Rate in Reservoirs
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作者 Haniyeh Zare Mehdi Bosaghzadeh Frshad Farahbod 《Advances in Nanoparticles》 CAS 2023年第1期1-10,共10页
The zinc oxide nano-particles have been used in this research. In this work, zinc oxide nanoparticles have been added to light and heavy crude oil. In this research, thermoelectric and physical properties of light and... The zinc oxide nano-particles have been used in this research. In this work, zinc oxide nanoparticles have been added to light and heavy crude oil. In this research, thermoelectric and physical properties of light and heavy crude petroleum have been measured, experimentally. In addition, dimensionless groups in hydrodynamics and heat transfer calculations are presented. This research illustrates that heat capacity of light and heavy crude petroleum varies from 4256 J/kg·°C to 4457 J/kg·°C and 4476 J/kg·°C to 5002 J/kg·°C, respectively. Moreover, heat capacity of light and heavy nano-crude petroleum is changing from about 4285 J/kg·°C to 4496 J/kg·°C and 4494 J/kg·°C to 5021 J/kg·°C, respectively. 展开更多
关键词 crude petroleum THERMOELECTRIC Kinetic Properties Nano-Metals Dimensional Numbers
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Production of Ca<sub>2</sub>AlNbO<sub>6</sub>Ceramics and Study of Their Stability in Crude Petroleum for the Conservation of Metallic Sensing Elements used in Petroleum Extraction
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作者 Yogendra P. Yadava Marilaine M. de Lima +1 位作者 José Carlos S. Oliveira Ricardo A. Sanguinetti Ferreira 《Materials Sciences and Applications》 2012年第6期408-413,共6页
In the present work a niobium based complex cubic perovskite oxide Ca2AlNbO6 ceramic was produced, characterized and studied its stability in crude petroleum environment for inert ceramic embedding for temperature sen... In the present work a niobium based complex cubic perovskite oxide Ca2AlNbO6 ceramic was produced, characterized and studied its stability in crude petroleum environment for inert ceramic embedding for temperature sensors used in petroleum extraction. Ca2AlNbO6 ceramic powder was prepared through thermo-mechanical processing. Structural characteristics of calcined material was investigated by powder X-ray diffarctometry, which presented a single phase complex cubic perovskite structure with lattice parameter a = 7.6599 ?. Compacted discs of Ca2AlNbO6 ceramics were sintered in the temperature range 1250°C - 1350°C during 24 hours in ambient atmosphere. Microstructure of the sintered ceramics was studied by scanning electron microscopy and mechanical behavior was studied by Vicker’s microhardness testing. Ca2AlNbO6 ceramics sintered at 1350°C presented best results in terms of microstructural homogeneity and mechanical hardness. Therefore these sintered ceramics were submerged in crude petroleum for 60 days. Ceramics were taken out from the petroleum periodically and subjected to structural, microstructural and mechanical characterizations. Results showed that ceramics submerged in crude petroleum did not suffer any change at any stage of submersion. These characteristics make this material suitable for inert ceramic embedding for sensors used in petroleum extraction. 展开更多
关键词 Ca2AlNbO6 PRODUCTION Microstructure Mechanical Properties STABILITY in crude petroleum
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Laboratory Design Criteria for Monitoring Biostimulated Bioremediation of a Crude Oil Contaminated Soil in Niger Delta Using Total Petroleum Hydrocarbon
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作者 Justin Nnaemeka Okorondu 《Journal of Geoscience and Environment Protection》 2023年第1期139-149,共11页
The remediation of crude oil-impacted soil has always been a challenge in different soil environments and climatic conditions. Bioremediation technology has offered a breakthrough in restoring crude oil-impacted soil/... The remediation of crude oil-impacted soil has always been a challenge in different soil environments and climatic conditions. Bioremediation technology has offered a breakthrough in restoring crude oil-impacted soil/sediment in muddy, dry soil and wetlands. Though, there have been varied environmental conditions that have hampered the success of the bioremediation process. This study has evaluated the effectiveness of a biostimulated bioremediation of crude oil-impacted soil using some design criteria—nutrient amendment (NPK fertilizer) and moisture content. Soil sample sets—A, B, C, D, E, F, and G were impacted with crude oil at a ratio of 10 g/kg and amended with varying amounts of nutrient 30, 60, and 80 g of N.P.K fertilizer. The medium for the inoculation of the nutrient was water and the volume of water applied varied from 30% to 80% saturation. The soil sample sets were harvested at an interval of 3 months for 180 days to determine the concentration of total petroleum hydrocarbon left in the soil. The analysis of the total petroleum hydrocarbon was achieved using a GC-FID with a capillary column and autosampler. Soil samples were extracted with mixed solvent dichloromethane and acetone at a 1:1 ratio. The total petroleum hydrocarbon results show that biostimulated bioremediation achieved better results in soil sample sets with low moisture content (30% water saturation) and moderate nutrient amendment. The biodegradation of the sample sets with high water saturation and a high nutrient amendment was slow with a higher amount of total hydrocarbon content at the end of the 180 days. The variability in the hydrocarbon degradation pattern of contaminated soil shows that biostimulated bioremediation achieved better results in soils with low moisture content than in soil environments with high water content (saturation). More so, nutrient overdosing of the substrate hampered the effectiveness of the remediation process. 展开更多
关键词 BIOREMEDIATION SOIL NUTRIENT Moisture Content Total petroleum Hydrocarbon crude Oil
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Determination of petroleum sulfonates in crude oil by column-switching anion-exchange chromatography 被引量:4
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作者 Liang Zhao Xu Long Cao +2 位作者 Hong Yan Wang Xia Liu Sheng Xiang Jiang 《Chinese Chemical Letters》 SCIE CAS CSCD 2008年第2期219-222,共4页
A column-switching anion-exchange chromatography method was described for the separation and determination of petroleum monosulfonates (PMS) and petroleum disulfonates (PDS) in crude oil that was simply diluted wi... A column-switching anion-exchange chromatography method was described for the separation and determination of petroleum monosulfonates (PMS) and petroleum disulfonates (PDS) in crude oil that was simply diluted with the dichloromethane/methanol (60/40). The high performance liquid chromatography (HPLC) system consisted of a clean-up column and an analytical column, which were connected with two six-port switching valves. Detection of petroleum sulfonates was available and repeatable. This method has been successfully applied to determine PMS and PDS in crude oil samples from Shengli oil field. 展开更多
关键词 petroleum sulfonate DETERMINATION Anion-exchange chromatography COLUMN-SWITCHING crude oil
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富产化学品的绿色高效石油碱催化新技术
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作者 吴青 《石油炼制与化工》 CAS CSCD 北大核心 2024年第1期189-201,共13页
近年来,碱催化技术和原油直接制化学品技术越来越受到人们的关注。本文报道中国海洋石油集团有限公司开发的原油直接催化转化制化学品(DPC)碱催化技术,包括催化剂性能、工业试验效果、碱催化技术与分子筛酸催化技术的比较以及碱催化反... 近年来,碱催化技术和原油直接制化学品技术越来越受到人们的关注。本文报道中国海洋石油集团有限公司开发的原油直接催化转化制化学品(DPC)碱催化技术,包括催化剂性能、工业试验效果、碱催化技术与分子筛酸催化技术的比较以及碱催化反应特点、反应机理等。DPC碱催化技术开发的关键是在发现可大幅减少焦炭和干气产率的催化新材料基础上,合成制备出高水热稳定性的介孔材料及具有高碱活性稳定性的碱催化剂,并开发出配套的反应-再生新工艺。处理劣质重油原料时,DPC技术比延迟焦化技术和催化裂化(FCC)技术更具优势,而与处理常压渣油或减压渣油的加氢处理工艺,即常压渣油加氢脱硫(ARDS)或减压渣油加氢脱硫(VRDS)技术相比,DPC技术也具有更多的优势。DPC技术在大幅降低干气和焦炭产率的同时,还能大幅提高化学品收率,是目前唯一适用于原油、蜡油、常压渣油、减压渣油、油砂沥青等各类原料的新技术。经初步证实,DPC碱催化技术遵循负碳离子反应机理,几乎不发生氢转移和芳烃缩合反应,但也表现出一定的裂解和异构化反应能力,是当前对用分子筛固体酸催化处理重油技术的颠覆性技术,可以取代延迟焦化、FCC、ARDS或VRDS工艺,为原油直接制化学品提供理论与技术指导、支撑与引领。 展开更多
关键词 碱催化技术 石油加工 原油直接制化学品 绿色 低碳
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Liquid marbles containing petroleum and their properties 被引量:3
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作者 Edward Bormashenko Roman Pogreb +3 位作者 Revital Balter Hadas Aharoni Doron Aurbach Vladimir Strelnikov 《Petroleum Science》 SCIE CAS CSCD 2015年第2期340-344,共5页
Liquid marbles (non-stick droplets) containing crude petroleum are reported. Liquid marbles were ob- tained by use of fluorinated decyl polyhedral oligomeric silsequioxane (FD-POSS) powder. Marbles containing crud... Liquid marbles (non-stick droplets) containing crude petroleum are reported. Liquid marbles were ob- tained by use of fluorinated decyl polyhedral oligomeric silsequioxane (FD-POSS) powder. Marbles containing crude petroleum remained stable on a broad diversity of solid and liquid supports. The effective surface tension of marbles filled with petroleum was established. The mechanism of friction of the marbles is discussed. Actuation of liquid marbles containing crude petroleum with an electric field is presented. 展开更多
关键词 Liquid marbles crude petroleum FrictionLow energy oil transportation effective surface tension -Electrical actuation
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高酸原油选择适合破乳剂的实验分析研究 被引量:1
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作者 沈洪泉 万德福 +1 位作者 赵建彬 赵东蒙 《山西化工》 CAS 2024年第5期28-30,共3页
现有破乳剂均有一定的局限性,对于特高含水的水包油型乳状液,存在脱水率低、脱水温度高、脱水速度慢等缺点,因此,针对不同地区的不同原油选择适合的破乳剂有着重要意义。基于此,考察了影响破乳剂性能的各种反应条件,在实验温度90℃和用... 现有破乳剂均有一定的局限性,对于特高含水的水包油型乳状液,存在脱水率低、脱水温度高、脱水速度慢等缺点,因此,针对不同地区的不同原油选择适合的破乳剂有着重要意义。基于此,考察了影响破乳剂性能的各种反应条件,在实验温度90℃和用量为10×10^(-6)破乳剂的条件下,通过瓶试脱水法,考察评价石油磺酸盐对破乳剂的影响。研究表明,石油磺酸盐明显降低了破乳剂在高酸原油中破乳脱水作用。 展开更多
关键词 高酸原油 实验分析 破乳剂 石油磺酸盐 原油脱水
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全二维气相色谱技术在石油地球化学中的应用进展
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作者 侯佳凯 张志遥 +1 位作者 师生宝 朱光有 《石油与天然气地质》 EI CAS CSCD 北大核心 2024年第2期565-580,共16页
石油是一种多组分的复杂有机混合物,在形成、运移过程中较易受到各种物理、化学和生物作用的改造,其中含量极低的化合物或特殊化合物用常规一维气相色谱难以检测确定。因全二维气相色谱技术具有超高的分辨率和灵敏度、较大的峰容量及准... 石油是一种多组分的复杂有机混合物,在形成、运移过程中较易受到各种物理、化学和生物作用的改造,其中含量极低的化合物或特殊化合物用常规一维气相色谱难以检测确定。因全二维气相色谱技术具有超高的分辨率和灵敏度、较大的峰容量及准确的定性和定量检测结果,可对复杂混合物进行分离与鉴定,从而解决了石油复杂成分的精确定量分析难题。研究结果表明:①全二维气相色谱分别与硫化学发光检测器、电子俘获检测器、氢火焰离子化检测器以及飞行时间质谱仪联用后,在原油馏分烃类组成分析及杂原子化合物分析检测方面的适用范围大、应用效果非常显著;②该技术可用于解析稠油的不可分离混合物成分(UCM)、评价原油裂解程度和判识超深层液态原油保存极限深度、定量评价硫酸盐热化学还原反应(TSR)蚀变强度以及识别原油中痕量分子化合物并进行结构鉴定;③该技术在石油地球化学科学问题研究中发挥了独特优势,今后将在页岩油气勘探以及深层-超深层液态原油运移、成藏保存和次生改造研究中发挥重要作用。 展开更多
关键词 金刚烷 全二维气相色谱 分离原理 石油地球化学 稠油 原油
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RIPP Works on Crude Formulation Technique to Grapple with Refiners' Tough Problems
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《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2016年第4期60-60,共1页
Currently "The Crude Formulation Technique" developed by the SINOPEC Research Institute of Petroleum Processing(RIPP) has passed the technical review sponsored by the Sinopec Corp.This technique by means of adopti... Currently "The Crude Formulation Technique" developed by the SINOPEC Research Institute of Petroleum Processing(RIPP) has passed the technical review sponsored by the Sinopec Corp.This technique by means of adopting the advanced algorithm on the basis of the crude assay data bank and the large crude spectroscopic database can intelligently blend together different kinds of crude oils to obtain multiple crude formulations, the quality of which is quite close to the target crude in a bid to provide technical support to the refining enterprises in the area of crude procurement and sustained property stabilization of crude oils pro-cessed thereby. 展开更多
关键词 crude petroleum passed refinery refining adopting imported blend formulation switch
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进口俄罗斯原油综合性质评价
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作者 吕君君 高伟 +2 位作者 王鹏伟 兰伟伟 杜若宇 《石化技术与应用》 CAS 2024年第5期351-356,共6页
使用实沸点蒸馏仪对进口俄罗斯原油进行切割,分析所得馏分,并与已知性质的陕西榆林地区原油作对比,得出进口俄罗斯原油综合评价数据。结果表明:与榆林原油相比,进口俄罗斯原油的轻油馏分收率较高,按关键馏分分类属于中间基原油;15~175... 使用实沸点蒸馏仪对进口俄罗斯原油进行切割,分析所得馏分,并与已知性质的陕西榆林地区原油作对比,得出进口俄罗斯原油综合评价数据。结果表明:与榆林原油相比,进口俄罗斯原油的轻油馏分收率较高,按关键馏分分类属于中间基原油;15~175℃馏分精制后是高品质的乙烯裂解原料,65~175℃馏分可作催化重整原料,140~240℃馏分可生产3号喷气燃料;175~370℃馏分可生产-20号车用柴油,240~360℃馏分可生产-10号车用柴油,360~500℃馏分经脱蜡、精制后,可生产对黏度指数要求不高的润滑油基础油原料,360~540℃馏分是一般的催化裂化原料;>360℃重油馏分属于二类渣油,可部分掺入蜡油中用作催化裂化原料,>540℃渣油馏分属于三类渣油,可用作延迟焦化原料。 展开更多
关键词 俄罗斯原油 综合性质 原油评价 实沸点蒸馏 石油馏分 相对密度指数
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植物根际产ACC脱氨酶原油降解菌的筛选及其降解和促生特性研究
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作者 麦迪努尔·依力哈木 樊永红 依力哈木·尔西丁 《中国土壤与肥料》 CAS CSCD 北大核心 2024年第5期177-189,共13页
从新疆克拉玛依油田作业区周围选择石油污染及盐渍化的3个区域采集梭梭根际土壤,测定土壤理化性质;分别以原油与1-氨基环丙烷-1-羧酸(1-amino-cyclopropane-1-carboxylic acid,ACC)作为唯一碳源和氮源,从土样中分离出两株耐盐碱能力强、... 从新疆克拉玛依油田作业区周围选择石油污染及盐渍化的3个区域采集梭梭根际土壤,测定土壤理化性质;分别以原油与1-氨基环丙烷-1-羧酸(1-amino-cyclopropane-1-carboxylic acid,ACC)作为唯一碳源和氮源,从土样中分离出两株耐盐碱能力强、ACC脱氨酶活力较高、原油降解能力较强的菌株。菌株S8-1和W8-4的ACC脱氨酶比活力分别为(0.17±0.06)和(0.77±0.08)U/mg,W8-4的酶比活力显著高于S8-1。通过乳化性能的测定,得出菌株W8-4和S8-1的乳化率分别为(54.92±5.04)%和(49.59±3.69)%,表明其具有增溶作用,可降低油水界面张力。7 d的降解试验结果显示,两株菌对原油的降解率分别为52.82%和41.38%。经形态学观察、生理生化鉴定和16S rDNA序列分析鉴定S8-1为格氏假单胞菌(Pseudomonas gessardii)菌株,W8-4为假单胞菌属(Pseudommonas sp.)菌株。通过研究不同环境条件对菌株原油降解效果的影响发现,当降解时间为7 d,摇床转速为180 r/min时,菌株S8-1的最佳降解条件是接种量为4%,初始pH为7,培养温度为30℃,原油浓度为0.5 g/L;菌株W8-4的最佳降解条件是接种量为5%,初始pH为8,培养温度为30℃,原油浓度为2.5 g/L;此时,两菌株对原油的降解率分别为55.16%和57.89%。促生能力的测定结果表明,两株菌均具有生物固氮和溶磷能力。因此,这两株菌可为将来盐渍化石油污染土壤的治理提供有价值的菌种资源。 展开更多
关键词 石油污染 植物根际 耐盐碱 ACC脱氨酶 原油降解率 促生作用
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Effect of Inlet Velocity on the Crude Oil Coking and Gas Phase Formation in a Straight Pipe 被引量:1
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作者 Dahmani Fouzia Tae Seeon Park 《Journal of Applied Mathematics and Physics》 2017年第1期17-25,共9页
A comparative numerical study is conducted to evaluate the effect of inlet velocity on the gas-liquid-solid phase change, the separation of phases and the coke formation. The numerical procedure is constructed within ... A comparative numerical study is conducted to evaluate the effect of inlet velocity on the gas-liquid-solid phase change, the separation of phases and the coke formation. The numerical procedure is constructed within the Eulerian framework in which the liquid phase is treated as a continuous phase while gas and solid are both considered as dispersed phases. The simplified reaction net of crude oil is used in order to predict the thermal cracking of the crude oil. The temperature distribution, flow field, liquid–gas phase separation, and coke formation are predicted and discussed for different inlet velocities. The information predicted by the CFD model can be utilized in the optimal design of industrial fired furnaces. 展开更多
关键词 crude Oil FOULING petroleum Thermal Cracking PREHEATER COKING
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Geochemical Characteristics of Different Kinds of Crude Oils in the Tarim Basin, Northwest China
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作者 朱扬明 《Chinese Journal Of Geochemistry》 EI CAS 2001年第1期73-87,共15页
Based on the compositions and distributions of biomarkers in thirty\|five representative oil samples, oils from the Tarim Basin of northwestern China are mainly divided into two oil families. One oil family contains r... Based on the compositions and distributions of biomarkers in thirty\|five representative oil samples, oils from the Tarim Basin of northwestern China are mainly divided into two oil families. One oil family contains relatively low amounts of C\-\{15\}\|C\-\{20\} isoprenoid hydrocarbons and shows pristane predominance with Pr/Ph ratios ranging from \{1.50\} to \{3.00\}. The GC/MS analytical data of these oils show the occurrence of abundant hopanes, and low concentrations of steranes and tricyclic terpanes with hopanes/steranes ratios from \{6.25\} to \{12.24\} and tricyclic terpanes/hopanes ratios from \{0.03\} to \{0.24\}. These oils contain low drimane relative to homodrimane (C\-\{15\}/C\-\{16\}<1.0) and abundant rearranged bicyclanes in bicyclic sesquiterpanes. They are dominated by low carbon number (C\-\{19\}\|C\-\{21\}) compounds in the tricyclic terpanes, and are rich in rearranged hopanes, C\-\{29\}Ts and an unknown C\-\{30\} compound in pentacyclic triterpanes. These geochemical characteristics suggest that the oils were generated mainly from terrigenous organic matter. The other oil family shows remarkably different biomarker compositions and distributions. The oils revealed Pr/Ph ratios of about \{1.0\}, high drimane/homodrimane ratios (>\{1.0\}), low hopanes/steranes ratios (\{0.65\}-\{2.50\}), high tricyclic terpanes/hopanes ratios (\{0.30\}-\{2.00\}) and a dominant peak at C\-\{23\} in tricyclic tepanes, suggesting a marine organic origin. Oil\|source rock correlation indicates that these two oil families seem to have been derived from Mesozoic Jurassic\|Triassic terrestrial source rocks (shales and coal seams) and Lower Paleozoic Ordovician\|Cambrian marine source rocks, respectively. 展开更多
关键词 地球化学特征 粗油 塔里木盆地 中国 油气藏 储层
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准噶尔盆地盆1井西凹陷侏罗系原油成因与来源 被引量:4
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作者 刘华 孟祥雨 +5 位作者 任新成 程斌 程长领 邓旭波 张洪瑞 方旭庆 《中国石油大学学报(自然科学版)》 EI CAS CSCD 北大核心 2023年第1期25-37,共13页
准噶尔盆地多套烃源岩、多期生排烃过程导致了原油来源的复杂性。利用原油物性、气相色谱-质谱等资料,综合厘定盆1井西凹陷原油的地化特征与来源。结果显示,研究区存在3种类型原油:Ⅰ类原油具有高含量25-降藿烷、高含量伽马蜡烷和大斜... 准噶尔盆地多套烃源岩、多期生排烃过程导致了原油来源的复杂性。利用原油物性、气相色谱-质谱等资料,综合厘定盆1井西凹陷原油的地化特征与来源。结果显示,研究区存在3种类型原油:Ⅰ类原油具有高含量25-降藿烷、高含量伽马蜡烷和大斜率“上升型”三环萜烷分布特征,是强还原沉积环境有机质形成的主生油窗阶段原油,来自于风城组烃源岩;Ⅱ、Ⅲ类原油具有较低含量伽马蜡烷和“山峰型”或弱“上升型”三环萜烷分布特征,是弱还原沉积环境有机质形成的原油,原油主要来自下乌尔禾组烃源岩,混有降解的风城组来源原油,其中,Ⅱ类原油是主生油窗阶段的原油,Ⅲ类原油是高过成熟阶段的原油。油藏具有多期充注特征,中晚侏罗世聚集的Ⅰ类原油分布广泛,但遭受了强烈生物降解,对成藏贡献小;晚白垩世聚集的Ⅱ类原油在砂体中长距离运移,多在凸起区汇聚成藏;新近纪,储层物性变差,原油难以长距离运移,该时期聚集的Ⅲ类原油多在断裂带附近成藏。 展开更多
关键词 准噶尔盆地 原油地化特征 生物标志化合物 油气成因 成藏过程
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Sludge Pollution Control from Crude Oil Tank Cleaning 被引量:1
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作者 Christopher C. Adigwe Ify L. Nwaogazie +2 位作者 Ejikeme Ugwoha Adekunle O. David Ndubuisi G. Elemuo 《Journal of Water Resource and Protection》 CAS 2022年第9期632-649,共18页
This study investigated the use of microbial analysis as a bioremediation option for remediating petroleum sludge, which is part of the waste stream generated in the petroleum industry. The aim is to reduce environmen... This study investigated the use of microbial analysis as a bioremediation option for remediating petroleum sludge, which is part of the waste stream generated in the petroleum industry. The aim is to reduce environmental burden caused by the discharge of untreated sludge. Sludge sample was cultured in other to isolate microorganisms for the sludge treatment. The selected strain of the organisms after screening were Aspergillus flavus, Aspergillus niger, Verticillus sp, Penicillum sp, and Microsporium audouinii. Bioreactors (labeled A, B, C, D and O) were designed for the treatment of petroleum sludge. These reactors contain 2.0 × 10<sup>-2</sup> m<sup>3</sup> of the diluted sludge samples and the isolated organisms for the treatment process. On a weekly basis, the control reactors received 1.5 × 10<sup>-3</sup> m<sup>3</sup> of fresh and saline water respectively. After 12 weeks of treatment, sludge physicochemical characteristics showed distinct variations. From the result, reactor D was the best in terms of remediating the sludge as compared to other reactors. Friedman non-parametric test was performed to check if the weeks of treatment affected the reduction of the total hydrocarbon content (THC) in the five reactors and also checked for significant differences in the THC after treatments. The drop in the THC of the treated sludge ranged from 56.0% to 67.3%. These results showed the possibility of enhanced biodegradation of petroleum sludge by hydrocarbon utilizing microorganisms (fungi). 展开更多
关键词 petroleum Sludge Sludge Pollution Control crude Oil Tank Cleaning Microbial Analysis BIOREMEDIATION BIOREACTOR
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Phase-Controlled and Gas-Washing Fractionations During the Formation of Petroleum Reservoirs
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作者 苏爱国 张水昌 +1 位作者 向龙斌 曾凡刚 《Chinese Journal Of Geochemistry》 EI CAS 2001年第2期108-109,共2页
By PVT fractionation experiments to model phase\|controlled and gas\|washing fractionations during the formation of petroleum reservoirs, the authors measured the physical and chemical properties of products formed in... By PVT fractionation experiments to model phase\|controlled and gas\|washing fractionations during the formation of petroleum reservoirs, the authors measured the physical and chemical properties of products formed in different fractionation stages and made a correlative analysis of the influence of depressurization and gas washing on oil/gas molecular composition and the rule of fractionation. The analytical results showed that gas washing is an important factor affecting the physical properties of crude oils, and also can be regarded as a good genetic interpretation of marine wax\|high oils in the Tarim region, Xinjiang, China. Phase\|controlled and gas\|washing fractionations can lead to the formation of condensates and their differences in chemical composition from crude oils are a direct reflection of evaporating fractionation. Phase\|controlled and gas\|washing fractionations have a great influence on the composition of molecular compounds and relevant parameters. So phase\|controlled and gas\|washing fractionations during the formation of petroleum reservoirs are not only favorable to identifying different processes of formation of petroleum reservoirs, but also to the scientific application of routine geochemical parameters. 展开更多
关键词 相变化 PVT试验 蒸汽驱 压力 分馏法 石油 油层注气
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高效降解菌用于含盐废水生物处理
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作者 龚小芝 《绿色科技》 2023年第4期108-114,共7页
对含盐污水三级生化进、出水进行分析,确定了污水中生物难降解有机物主要为直链烷烃。从含盐污水生化处理二沉池污泥中优选出三株在3%的盐度下有较高降解能力的菌株,经鉴定,均为芽孢杆菌属。菌株特性测试结果表明:此三株菌有较强的耐盐... 对含盐污水三级生化进、出水进行分析,确定了污水中生物难降解有机物主要为直链烷烃。从含盐污水生化处理二沉池污泥中优选出三株在3%的盐度下有较高降解能力的菌株,经鉴定,均为芽孢杆菌属。菌株特性测试结果表明:此三株菌有较强的耐盐能力,在3.5%盐度下能较快的生长;在30~35℃,pH值7.0~7.5时,此三株菌生长最好。将三株菌混合培养后用于实际废水生物处理,与原生物处理工艺相比:缩短了水力停留时间25%,同时出水的COD比实际排水指标低14 mg/L。 展开更多
关键词 耐盐 芽孢杆菌属 原油降解 石油烃 好氧生物膜
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二元石油磺酸盐无碱体系的研究与应用 被引量:1
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作者 王玉梅 《炼油与化工》 CAS 2023年第3期30-33,共4页
表面活性剂(S)-聚合物(P)二元复合驱(简称SP)是1种新型的3次采油的技术,它具备了无碱、不结垢、高粘弹性等特点,及良好的增加采收率效果,已在辽河、新疆、胜利等油田开展矿场试验,增油效果明显[1]。石油磺酸盐是1种驱油用表面活性剂,其... 表面活性剂(S)-聚合物(P)二元复合驱(简称SP)是1种新型的3次采油的技术,它具备了无碱、不结垢、高粘弹性等特点,及良好的增加采收率效果,已在辽河、新疆、胜利等油田开展矿场试验,增油效果明显[1]。石油磺酸盐是1种驱油用表面活性剂,其优点是价格低与原油配伍性好,已成为大庆油田提高原油采收率的主要驱油用剂,由碱(A)-表面活性剂(S)-聚合物(P)组成的三元复合驱(简称ASP)在油田广泛使用,而SP体系尚未普遍应用。文中主要研究评价了大庆炼化石油磺酸盐产品在吉林油田和大庆油田二元无碱体系的应用,并通过室内实验筛选石油磺酸盐与不同表面活剂的复配研究,以达到满足大庆油田的二元无碱驱油体系中表面活性剂的性能需求。 展开更多
关键词 石油磺酸盐 界面张力 原油采收率 复配
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两种裂解气中轻烃组成差异性及其应用 被引量:51
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作者 胡国艺 肖中尧 +4 位作者 罗霞 李志生 李剑 孙庆武 王春怡 《天然气工业》 EI CAS CSCD 北大核心 2005年第9期23-25,共3页
为了寻找干酪根和原油裂解气识别指标,对两种裂解气中轻烃各化合物开展了深入的对比研究。热模拟实验表明干酪根裂解气和原油裂解气轻烃组成存在差异,在C7轻烃组成中,原油裂解气中甲基环己烷/正庚烷和(2-甲基己烷+3-甲基己烷)/正己烷均... 为了寻找干酪根和原油裂解气识别指标,对两种裂解气中轻烃各化合物开展了深入的对比研究。热模拟实验表明干酪根裂解气和原油裂解气轻烃组成存在差异,在C7轻烃组成中,原油裂解气中甲基环己烷/正庚烷和(2-甲基己烷+3-甲基己烷)/正己烷均明显高于干酪根裂解气;通过对海相典型原油裂解气和干酪根裂解气的轻烃组成对比研究进一步证实了两种裂解气在轻烃组成上存在差异,原油裂解气中甲基环己烷/正庚烷一般大于1.0,(2-甲基己烷+3-甲基己烷)/正己烷一般大于0.5,而干酪根裂解气则反之。塔里木盆地满东-英吉苏地区天然气轻烃组成具有环烷烃和异构烷烃含量高的分布特征,应用上述指标对该区天然气成气过程进行判识,结果表明满东-英吉苏地区天然气主要为原油裂解气。 展开更多
关键词 干酪根 原油 裂解气 轻烃 组成 塔里木盆地 满东-英吉苏地区 原油裂解气 烃组成 应用
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聚丙烯酸酯降凝剂对蜡晶形态和电性质的影响 被引量:17
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作者 宋昭峥 赵密福 +2 位作者 葛际江 张贵才 蒋庆哲 《石油学报(石油加工)》 EI CAS CSCD 北大核心 2004年第2期41-46,共6页
采用偏光显微镜和微电泳仪研究了聚丙烯酸酯降凝剂对蜡晶的形态和电性质的影响。结果表明,降凝剂的加入,使原油中的蜡结晶成小晶体,同时,改变了蜡晶的表面性质,降低了蜡晶的表面能。降凝剂加入原油后,降凝剂中的极性基团在蜡晶表面形成... 采用偏光显微镜和微电泳仪研究了聚丙烯酸酯降凝剂对蜡晶的形态和电性质的影响。结果表明,降凝剂的加入,使原油中的蜡结晶成小晶体,同时,改变了蜡晶的表面性质,降低了蜡晶的表面能。降凝剂加入原油后,降凝剂中的极性基团在蜡晶表面形成极性点,在其上优先吸附含蜡体系中的极性低分子物质,蜡晶表面产生定向电场,由于电性排斥使蜡晶高度分散而稳定存在,高度分散的蜡晶使原油的凝点和粘度下降。当降凝剂用量较低时,蜡晶表面的ζ电位随降凝剂用量的增加而增加;降凝剂的用量较高时,蜡晶表面ζ电位随降凝剂用量的增加趋势变缓;降凝剂用量达到一定值时,蜡晶表面ζ电位不随降凝剂用量的变化而变化。 展开更多
关键词 聚丙烯酸酯 降凝剂 蜡晶形态 原油 极性基团 表面能
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