Разработка инновационной энергосберегающей технологии очистки резервуаров путем диспергирования отложений

2021 ◽  
pp. 484-491
Author(s):  
Mars N. Fazlyev ◽  
Аlexey Y. Demyanov ◽  
Мars Y. Timirgaliyev ◽  
Тimur I. Bezymyannikov ◽  
Еugeny М. Muphtakhov ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Bottom Sediments ◽  
Petroleum Products ◽  
Heavy Oils ◽  
Oil Viscosity ◽  
Cavitation Effect ◽  
Global Trend ◽  
Sediment Formation ◽  
Experimental Laboratory ◽  
High Frequency Waves

An obvious global trend in recent years is the increase in the proportion of viscous and heavy oils featured by high density and content of asphalt-resin-paraffin deposits. Due to the deterioration of the rheological properties of oil, the processes of its extraction, preparation in the fields, further transportation and subsequent processing have been made more difficult. The object of the study is the cleaning of oil and petroleum products storage tanks from the accumulated bottom sediments. The existing methods of tanks cleaning have been analyzed, the most promising methods and technical means for removing sediment and reducing the volume of sediment formation have been identified. The urgency of the development and implementation of innovative technologies enabling minimization of accumulation of deposit to reduce the scope of work in tank cleaning has been established. In this regard, experimental laboratory studies were conducted to determine the effectiveness of ultrasonic exposure with the occurrence of cavitation on the rheological properties of oil. The obtained results are indicative of a positive effect of ultrasound treatment of high-paraffin oil, such effect been expressed in decreased oil viscosity. A method is proposed for cleaning the tank from bottom sediments with the use of hydraulic washout system and ultrasonic plant. That method is based on the use of the cavitation effect caused by high-frequency waves, which makes it possible to temporarily adjust the rheological properties of oil and sludge deposit, reduce the deposit deposition rate and thereby slow down the process of sediment deposition during the storage of oil and petroleum products in large-volume tanks. Очевидной тенденцией последних лет в мире является увеличение доли вязких и тяжелых нефтей, характеризующихся высокой плотностью и содержанием асфальтосмолопарафиновых отложений. Вследствие ухудшения реологических свойств нефти затрудняются процессы ее добычи, подготовки на промыслах, дальнейшей транспортировки и последующей переработки. Объектом исследования является очистка резервуаров для хранения нефти и нефтепродуктов от образующихся донных отложений. Проанализированы существующие способы очистки резервуаров, выявлены наиболее перспективные методы и технические средства для удаления осадка и снижения объема образования отложений. Установлена актуальность вопроса разработки и использования инновационных технологий, позволяющих минимизировать выпадение осадка с целью уменьшения объема работ при очистке резервуаров. В этой связи проведены экспериментальные лабораторные исследования для определения эффективности ультразвукового воздействия с возникновением кавитации на реологические свойства нефти. Полученные результаты свидетельствуют о положительном эффекте обработки ультразвуком высокопарафинистой нефти, который выражается в снижении ее вязкости. Предложен способ очистки резервуара от донных отложений с применением гидравлической системы размыва и ультразвуковой установки. Он основан на использовании эффекта кавитации, вызываемой посредством высокочастотных волн, что позволяет провести временную корректировку реологических свойств нефти и осадка нефтешлама, снизить скорость выпадения осадка и таким образом замедлить процесс образования отложений при хранении нефти и нефтепродуктов в резервуарах большого объема.

scholarly journals INVESTIGATION OF RHEOLOGICAL PROPERTIES OF HEAVY OIL DEPOSITS

2020 ◽  
Author(s):  
Sudad H Al-Obaidi ◽  
Smirnov VI ◽  
Kamensky IP
Keyword(s):  
Rheological Properties ◽  
Heavy Oil ◽  
High Viscosity ◽  
Oil Field ◽  
Natural Mode ◽  
Heavy Oils ◽  
Oil Viscosity ◽  
Temperature Range ◽  
Reservoir Conditions ◽  
Oil Deposits

High viscosity of heavy oils at reservoir conditions is one of the main causes of the low production rates of producing wells, and sometimes even their complete absence when trying to develop a field on a natural mode. The rheological properties of heavy oil deposits in a wide temperature range were studied in this work. Special attention was paid to the study of viscous and elastic components of oil viscosity as a function of temperature to justify the optimal conditions for the development of heavy oil fields. Heavy oil samples collected from Pechersky oil field (Russia) were used in this research. Dynamic viscosity tests were carried out on the heavy oil of this field. It was noticed that high values of viscous and elastic components of oil viscosity were observed over the entire temperature range. It has also been remarked that the values of oil viscosity components are inversely proportional to the temperature increase.

scholarly journals Migration of heavy metals in system of coastal soil – bottom sediments – plants of the Khodtsa river during summer mean water in 2019

2020 ◽  
Vol 2020 (2) ◽  
pp. 67-74
Author(s):  
Zhanna Sergeevna Makakhaniuk ◽  
Valentina Mikhailovna Zubkova ◽  
Lyubov Anatolievna Rozumnaya
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
Aquatic Vegetation ◽  
River Mouth ◽  
Petroleum Products ◽  
Small River ◽  
Laboratory Research ◽  
Intermediate Point ◽  
Higher Aquatic Vegetation ◽  
Environmental Monitoring System

The article describes the purpose of the work, which is determining the distribution and relationships between the composition of pollutants in coastal soil, bottom sediments and higher aquatic vegetation in the small river Khodtsa. There have been presented the data of the laboratory research based on the results of the field work onselecting samples, on concentration of toxicants (cadmium, lead, iron, nitrogen, ammonium and petroleum products) in deposit media, as well as in Carex aquatilis plants of the small river Hodza. This plant species is limiting throughout the river due to the low intensity of biological absorption. The studies were carried out during the summer low water season in 2019 on the river section from the source (Elektrostal city) to the river mouth in the area of Pavlovsky Posad. In all the studied objects there have been found increased concentrations of iron. In the coastal ground and bottom sediments the pollution with heavy metals is manifested to a much greater extent: at the source and intermediate point. Petroleum products and ammonia nitrogen are distributed unevenly in space. A correlation analysis of the experimental data obtained in the components of the environment of the studied territory (the Khodtsa river) was performed. In general, the highest measurement results are observed in the upper reaches of the small river Khodtsa in the industrial city of Elektrostal. The obtained data on the heavy metals migration in the system “сoastal ground – bottom sediments – higher aquatic vegetation” of the small river Khodtsa can be successfully used as indicators an environmental monitoring system and serve as the basis for organizing further research, as well as for developing a strategy for environmental management and environmental protection in the Moscow Region.

scholarly journals REDUCING OF OIL VISCOSITY UNDER PULSE ARC ELECTROHYDRAULIC DISCHARGE

2020 ◽  
pp. 25-32
Author(s):  
В. В. Лыков ◽  
Л. Ш. Махмудова ◽  
М. Х. Джабраилова ◽  
Х. Ш. Лаиева
Keyword(s):  
Relaxation Time ◽  
Rheological Properties ◽  
Viscosity Reduction ◽  
Oil Viscosity ◽  
The Cost ◽  
Pulsed Arc ◽  
Pulsed Arc Electrohydraulic Discharge ◽  
Electrohydraulic Discharge

В работе исследовалось воздействие импульсного плазменного (ИПВ) электрогидравлического разряда на реологические свойства нефтей с месторождений Октябрьское и Старогрозненское Чеченской Республики и Зимняя Ставка Ставропольского края. В результате ИПВ наблюдалось снижение вязкости нефти с месторождения Октябрьское на 15%, с месторождения Старогрозненское - на 25%, с месторождения Зимняя Ставка - на 50%. Показана зависимость степени снижения вязкости после ИПВ от содержания парафинов в нефти. Чем больше процент содержания парафинов, тем больше процент снижения вязкости. Время восстановления вязкости поле ИПВ (время релаксации) превышало 7 дней, что позволяет транспортировать нефти на большие расстояния, существенно сокращая затраты на путевые подогреватели и насосы. Можно ожидать сокращение затрат на борьбу с парафиновыми отложениями на стенках трубопроводов (АСПО) и насосно-компрессорных труб (НКТ) из-за снижения концентрации парафинов при ИПВ. The paper investigated the effect of pulsed arc electrohydraulic discharge (PAED) on the rheological properties of oil from the Oktyabrskoye and Starogroznenskoye fields in the Chechen Republic and Zimnyaya Stavka in the Stavropol territory. As a result of PAED, the viscosity of oil from the Oktyabrskoye field decreased by 15%, from the Starogroznenskoye field by 25%, and from the Zimnyaya Stavka field by 50%. The dependence of the degree of viscosity reduction after PAED on the paraffin content in oils is shown. The higher the percentage of paraffin content, the greater the percentage of viscosity reduction. The time of recovery of the viscosity after PAED (relaxation time) exceeded 7 days, which allows transport oil over long distances, significantly reducing the cost of track heaters and pumps. We expect a reduction in the cost of controlling paraffin deposits on the walls of pipelines and tubing due to a decrease in the concentration of paraffins after PAED.

scholarly journals Analysis of the migration of a pollutant in the soil structure

2019 ◽  
pp. 130-134
Author(s):  
Maria Popa ◽  
Loredana Irena Negoita
Keyword(s):  
Grain Size ◽  
Physical Properties ◽  
Petroleum Product ◽  
Soil Structure ◽  
Petroleum Products ◽  
Depth Of Penetration ◽  
Liquid Petroleum Product ◽  
Accidental Pollution ◽  
Experimental Laboratory ◽  
First Time

This paper presents a study on the migration into a soil structure of a pollutant, a liquid petroleum product. Accidental pollution with a liquid petroleum product can also be considered to crack a transport pipeline. This leads to the displacement of the pollutant in the soil structure, both horizontally and vertically. The study presents an analysis of the migration velocity in the soil structure, with certain physical properties, of both the soil and the pollutant petroleum product. The penetration of petroleum products to a certain depth in soil is influenced by its humidity, grain size and density, pollution intensity, viscosity and pollutant density. It was possible to calculate for the first time at the experimental laboratory level the depth of penetration of the pollutant.

Aeroschup — The Unique Technology for Cleanup Bottom Sediments from Oil and Petroleum Products

2019 ◽  
Author(s):  
D.S. Vorobiev ◽  
Y.A. Frank ◽  
A.A. Trifonov ◽  
O.E. Merzlyakov ◽  
A.O. Borisov ◽  
...  
Keyword(s):  
Bottom Sediments ◽  
Petroleum Products

Effect of Oil Viscosity, Permeability and Injection Rate on Performance of Waterflooding, CO2 Flooding and WAG Processes on Recovery of Heavy Oils

2010 ◽  
Author(s):  
Farshid Torabi ◽  
Benyamin Yadali Jamaloei ◽  
Ostap Zarivnyy ◽  
Brett Alvin Paquin ◽  
Nevin John Rumpel ◽  
...  
Keyword(s):  
Injection Rate ◽  
Heavy Oils ◽  
Co2 Flooding ◽  
Oil Viscosity

scholarly journals Criterion for the assessment of the ecological condition of bottom sediments (on the example of the Brest region)

2019 ◽  
Vol 54 (4) ◽  
pp. 455-466
Author(s):  
L. N. Ryabova ◽  
I. A. Zalygina
Keyword(s):  
Trace Elements ◽  
Bottom Sediments ◽  
Petroleum Products ◽  
Ecological Condition ◽  
Pollution Level ◽  
Satisfactory Condition ◽  
Geochemical Parameters ◽  
Drainage Channels ◽  
Copper Zinc ◽  
Surrounding Landscape

Geochemical parameters of bottom sediments allow quick estimating the state of the environment within the catchment of watercourses, as the composition of bottom sediments inherits the geochemical features of the components of the surrounding landscape. New data on the content of trace elements, sulfates, chlorides, nitrates, petroleum products, synthetic surfactants and phenols in the bottom sediments, obtained during complex geochemical studies in the Brest region, are presented. The concentration levels of the determined ingredients for sediments of the main types of reservoirs were determined. The maximum accumulation of nitrogen compounds, chlorides, phosphates and trace elements (nickel, cobalt, vanadium, chromium, copper, zinc and manganese) was marked in the sediments of rivers, while sulfates and lead are concentrated to a greater extent in the bottom sediments of the drainage channels. The map of pollution of bottom deposits of the territory of the Brest region of scale 1:200000 was constructed. It was found that the geochemical state of bottom sediments in the reservoirs of the Brest region is mainly in satisfactory condition, the degree of pollution by heavy metals was estimated as permissible with only 3.0 % belonging to the category of dangerous pollution level.

scholarly journals Influence of leaching parameters on the vanadium extraction from petroleum coke

2021 ◽  
Vol 266 ◽  
pp. 08002
Author(s):  
A.A. Kudinova ◽  
N.K. Kondrasheva ◽  
V.A. Rudko
Keyword(s):  
Petroleum Coke ◽  
Acid Leaching ◽  
Lithium Ion ◽  
Petroleum Products ◽  
Heavy Oils ◽  
Rare Metals ◽  
Valuable Component ◽  
Vanadium Extraction ◽  
Liquid Phases ◽  
Leaching Parameters

More than 60 trace elements, including rare metals, can be found in heavy oils. The most valuable component of oils and petroleum products is vanadium. It is used as an alloying agent to create extra strong steel, as a cathode for lithium-ion batteries, and also as a catalyst in the chemical industry. Nowadays studies of various methods for extracting vanadium from heavy oils and petroleum products are actively carried out. This work presents the method of alkaline and acid leaching of vanadium from petroleum coke and also results of the examination of influence of factors such as the duration of the process (0.5, 1.5 and 2.5 h) and the ratio of solid and liquid phases (1:2, 1:3 and 1:4). The highest yield of vanadium 80% is observed using sulfuric acid with the process duration is 1.5 hours and the ratio S/L = 1:4

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