Dynamics of crude oil rheological properties after ultrasonic treatment

2020 ◽  
Vol 6 ◽  
pp. 30-34
Author(s):  
Aydar Kadyirov ◽  
Yulia Karaeva ◽  
Ekaterina Vachagina
Keyword(s):  
Energy Efficiency ◽  
Crude Oil ◽  
Temperature Sensitivity ◽  
Ultrasonic Treatment ◽  
Oil Viscosity ◽  
Basic Principles ◽  
Energy Economy ◽  
Heavy Crude ◽  
And Storage ◽  
Published Research

Ultrasonic treatment of heavy crude oils has been proven to manage oil viscosity and temperature sensitivity. In continuation of the previously published research results (Energy Safety and Energy Economy, iss. 5, 2019), we found out basic principles to predict dynamics of crude oil viscosity depending on time, power, and frequency of ultrasonic treatment. Viscosity control is essential for crude oil not only after its ultrasonic treatment but also while transporting and storage to keep energy efficiency of the entire process at the desired level.

Heavy crude oil viscosity reduction and rheology for pipeline transportation

Fuel ◽  
2010 ◽  
Vol 89 (5) ◽  
pp. 1095-1100 ◽  
Author(s):  
Shadi W. Hasan ◽  
Mamdouh T. Ghannam ◽  
Nabil Esmail
Keyword(s):  
Crude Oil ◽  
Viscosity Reduction ◽  
Heavy Crude Oil ◽  
Pipeline Transportation ◽  
Oil Viscosity ◽  
Heavy Crude

Heavy crude oil viscosity reduction by dilution with hydrocarbons obtained via pyrolysis of polypropylene and polystyrene

2020 ◽  
Vol 38 (8) ◽  
pp. 651-658
Author(s):  
Gerardo Martínez-Narro ◽  
Cuauhtémoc Pozos-Vázquez ◽  
Alejandro Núñez-Delgado ◽  
Daniela Morán-Medellín ◽  
Virginia Elizabeth Lara-Zárate
Keyword(s):  
Crude Oil ◽  
Viscosity Reduction ◽  
Heavy Crude Oil ◽  
Oil Viscosity ◽  
Heavy Crude

A Study of the Effect of Gas Condensate on the Viscosity and Storage Stability of Omani Heavy Crude Oil

2006 ◽  
Vol 20 (6) ◽  
pp. 2504-2508 ◽  
Author(s):  
Naoya Shigemoto ◽  
Rashid S. Al-Maamari ◽  
Baba Y. Jibril ◽  
Akihiko Hirayama
Keyword(s):  
Crude Oil ◽  
Storage Stability ◽  
Gas Condensate ◽  
Heavy Crude Oil ◽  
Heavy Crude ◽  
And Storage

scholarly journals Screening of waterflooding, hot waterflooding and steam injection for extra heavy crude oil production from Tatarstan oilfield

2021 ◽  
Vol 931 (1) ◽  
pp. 012002
Author(s):  
A Pituganova ◽  
I Minkhanov ◽  
A Bolotov ◽  
M Varfolomeev
Keyword(s):  
Crude Oil ◽  
Oil Recovery ◽  
Water Injection ◽  
Oil Production ◽  
Steam Injection ◽  
Hot Water ◽  
Heavy Crude Oil ◽  
Oil Viscosity ◽  
Heavy Crude ◽  
Bulk Model

Abstract Thermal enhanced oil recovery techniques, especially steam injection, are the most successful techniques for extra heavy crude oil reservoirs. Steam injection and its variations are based on the decrease in oil viscosity with increasing temperature. The main objective of this study is the development of advanced methods for the production of extra heavy crude oil in the oilfield of the Republic of Tatarstan. The filtration experiment was carried out on a bulk model of non-extracted core under reservoir conditions. The experiment involves the injection of slugs of fresh water, hot water and steam. At the stage of water injection, no oil production was observed while during steam injection recovery factor (RF) achieved 13.4 % indicating that fraction of immobile oil and non-vaporizing residual components is high and needed to be recovered by steam assisted EORs.

Loss Coefficient for Viscous Mixtures of Light and Heavy Crude Oil in Y-Junctions

2016 ◽  
Author(s):  
Andres Piñero ◽  
Elionora Caldera ◽  
Manuel Borregales ◽  
Miguel Asuaje
Keyword(s):  
Crude Oil ◽  
Viscous Fluids ◽  
Energy Losses ◽  
Heavy Crude Oil ◽  
Oil Viscosity ◽  
Cfd Simulations ◽  
Two Phase ◽  
Oil Water ◽  
Heavy Crude ◽  
Water Cut

One of the challenges of transporting highly viscous crude oil is to ensure that the flow of oil will be delivered. It is also necessary to keep the operational standards and conditions along sections of pipes and fittings. Today, with low oil prices, it is important to minimize energy losses through the pipelines and accessories. However, new designs are often based on correlations that have not been developed for heavy oil water mixtures and are not frequently reported in the literature. Moreover, conventional calculations do not take into account the presence of accessory lines, or simply consider by empirically adding an extra percentage of energy loss or according to the engineer design test. Even more, the current correlations that could estimate accessory loss do not work well for viscous fluids and are even less suitable for the case of two-phase mixtures. For example, Gardel correlation [1] was made for water flow through yee type accessories. Applying this correlation to viscous fluids result in high deviations, more than 500% compared to CFD simulations. The present work attempts to predict the fluid dynamics behavior and the energy losses of these viscous fluids and mixtures (oil - water) going through a Yee type confluence. All simulations were carried out using ANSY CFX® v14.5. Mesh number of elements was optimized using Pipe-It® (optimization software). A grid independence study was also carried out automatically in Pipe-It® to ensure the quality of results. Several conditions have been simulated: angle confluence of 45°–75°, diameter ratio 2–7, oil viscosity from 10 to 105 cP, and water cut of 0–1. As the main result, a correlation that predicts the behavior of viscous mixtures in their passage through yee type confluences was developed using a genetic algorithms technique [2]. This correlation takes into account: viscosity, fluid fractions, input speeds, confluence angle and other parameters that are not normally considered by other authors. Therefore, it may be used in mixtures of water with light and heavy crude oil. Finally, correlations with 10% deviation compared to CFD simulations were obtained.

scholarly journals Extra-Heavy Crude Oil Viscosity Reduction Using and Reusing Magnetic Copper Ferrite Nanospheres

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 175
Author(s):  
Lucía Mateus ◽  
Esteban A. Taborda ◽  
Carlos Moreno-Castilla ◽  
María Victoria López-Ramón ◽  
Camilo A. Franco ◽  
...  
Keyword(s):  
Crude Oil ◽  
Heavy Oil ◽  
Solvothermal Method ◽  
Sio2 Nanoparticles ◽  
Viscosity Reduction ◽  
Copper Ferrite ◽  
Dynamic Rheology ◽  
Oil Viscosity ◽  
Fixed Concentration ◽  
Heavy Crude

The main objective of this study is the synthesis, use, and reuse of magnetic copper ferrite nanospheres (CFNS) for extra-heavy oil viscosity reduction. The CFNS were synthesized using a solvothermal method resulting in mean particle size of 150 nm. Interactions of CFNS with the crude oil were evaluated through asphaltene adsorption isotherms, as well as static and dynamic rheology measurements for two cycles at 25 °C. Adsorption and desorption experiments corroborated that most of the asphaltenes adsorbed can be removed for nanoparticle reuse. During the rheology tests, nanoparticles were evaluated in the first cycle at different concentrations from 300 to 1500 mg/L, leading to the highest degree of viscosity reduction of 18% at 500 mg/L. SiO2 nanoparticles were evaluated for comparison issues, obtaining similar results regarding the viscosity reduction. After measurements, the CFNS were removed with a magnet, washed with toluene, and further dried for the second cycle of viscosity reduction. Rheology tests were performed for a second time at a fixed concentration of 500 mg/L, and slight differences were observed regarding the first cycle. Finally, changes in the extra-heavy oil microstructure upon CFNS addition were observed according to the significant decrease in elastic and viscous moduli.

Combined Analysis of Heavy Crude Oil Viscosity and Stress Acting on the Buried Oil Pipelines

2021 ◽  
Vol 12 (1) ◽  
pp. 04020059
Author(s):  
Manigandan Sekar ◽  
Praveenkumar Thaloor Ramesh ◽  
Eshanthini Palanivelu
Keyword(s):  
Crude Oil ◽  
Heavy Crude Oil ◽  
Oil Viscosity ◽  
Combined Analysis ◽  
Oil Pipelines ◽  
Heavy Crude
Sign in / Sign up

Export Citation Format

Share Document