scholarly journals Rheological behavior and viscosity reduction of heavy crude oil and its blends from the Sui-zhong oilfield in China

2017 ◽  
Vol 156 ◽  
pp. 563-574 ◽  
Author(s):  
Jian Zhang ◽  
Xiao-ping Chen ◽  
Dong Zhang ◽  
Jing-yu Xu
Keyword(s):  
Crude Oil ◽  
Rheological Behavior ◽  
Viscosity Reduction ◽  
Heavy Crude Oil ◽  
Heavy Crude

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

scholarly journals Synthesis of Zinc Oxide Nanoparticles for Oil Upgrading and Wax Deposition Control: Effect of Calcination Temperature

2020 ◽  
Vol 20 (4) ◽  
pp. 746
Author(s):  
Siti Nurliyana Che Mohamed Hussein ◽  
Fatin Syahirah Mohamed Fuad ◽  
Marina Ismail
Keyword(s):  
Crude Oil ◽  
Crystallite Size ◽  
Calcination Temperature ◽  
Zno Nanoparticles ◽  
Viscosity Reduction ◽  
Heavy Crude Oil ◽  
Wax Deposition ◽  
X Ray ◽  
Heavy Crude ◽  
Deposition Control

In this study, ZnO nanoparticles were synthesized using a sol-gel method for oil upgrading and wax deposition control. The synthesized ZnO nanoparticles were used to measure viscosity and wax deposition in the heavy crude oil and to investigate the effectiveness of the nanoparticles in the reduction of viscosity and wax deposition control of the heavy crude oil. This study investigated the effect of calcination temperature on ZnO nanoparticles during synthesis towards viscosity reduction and wax deposition control. ZnO nanoparticles were calcined at different temperatures ranging from 300 to 900 °C. The calcined ZnO nanoparticles were characterized using X-ray diffraction (XRD), Field Emission Scanning Electron microscope (FESEM), and Energy-dispersive X-ray spectroscopy (EDX) for its structure, size, shape, and morphology. The characterization results showed a hexagonal wurtzite structure of ZnO nanoparticles. The physical properties and rheology of heavy crude oil were characterized by using Electronic Rheometer and cold finger method to analyze the viscosity, shear rate, and wax deposition of the heavy crude oil for performance study. Decreased in crystallite size from 15.59 to 12.84 nm was observed with increasing calcination temperature from 300 to 400 °C, and a further increase of calcination temperature from 400 to 900 °C, the crystallite size increased from 12.84 to 41.58 nm. The degree viscosity reduction (DVR %) of heavy crude oil was observed to increase by 41.7%, with decreasing ZnO nanoparticles size from 30.11 nm to 12.84 nm. The optimum calcination temperature was 400 °C. Wax deposition decreases by 32.40% after the addition of ZnO nanoparticles into heavy crude oil.

scholarly journals A pilot test of ultrasonic viscosity reduction of heavy crude oil in oilfield

2017 ◽  
Author(s):  
Delong Xu ◽  
Chao Li ◽  
Jingjun Deng ◽  
Weijun Lin ◽  
Lixin Bai
Keyword(s):  
Crude Oil ◽  
Viscosity Reduction ◽  
Heavy Crude Oil ◽  
Pilot Test ◽  
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

scholarly journals Viscosity reduction of extra heavy crude oil by magnetite nanoparticle-based ferrofluids

2017 ◽  
Vol 36 (1-2) ◽  
pp. 23-45 ◽  
Author(s):  
Juan E Aristizábal-Fontal ◽  
Farid B Cortés ◽  
Camilo A Franco
Keyword(s):  
Crude Oil ◽  
Automotive Industry ◽  
Viscosity Reduction ◽  
Heavy Crude Oil ◽  
Hexadecyltrimethylammonium Bromide ◽  
Reduction Degree ◽  
Magnetite Nanoparticle ◽  
Carrier Fluid ◽  
Heavy Crude ◽  
Temperature Time

The main objective of this work is to synthesize and evaluate magnetite (Fe3O4) nanoparticle-based ferrofluids for reducing the viscosity of an extra heavy crude oil. The carrier fluid of the nanoparticles was synthesized using an engine lubricant recycled from the automotive industry and hexadecyltrimethylammonium bromide as a surfactant. Fe3O4 nanoparticles were synthesized by coprecipitation method. The effect of the concentration of nanoparticles in the viscosity reduction degree was determined for dosages between 0 and 50,000 mg/L. Different dosages of carrier fluid were evaluated between 0 and 10% v/v. The effects of the amount of brine emulsified, temperature, time, and shear rate were assessed. Overall, the results showed that viscosity and shear stress of extra heavy crude oil could be reduced up to 81 and 78% in the presence of ferrofluid, respectively. The rheological behavior of extra heavy crude oil in the presence and absence of ferrofluid was assessed by Cross, Ostwald-de Waele, and Herschel-Bulkley models.

Development of a Fracturing Nanofluid with Dual Purpose: Increasing Heavy Oil Mobility and Reducing the Reservoir Damage Associated at the Remaining Fracture Fluid

2021 ◽  
Author(s):  
Maria Alejandra Giraldo ◽  
Richard Zabala ◽  
Jorge Ítalo Bahamon ◽  
Camilo Mazo ◽  
Juan David Guzmán ◽  
...  
Keyword(s):  
Crude Oil ◽  
Rheological Behavior ◽  
Fumed Silica ◽  
Rock Sample ◽  
Formation Damage ◽  
Heavy Crude Oil ◽  
Fracturing Fluid ◽  
Dual Purpose ◽  
Fracture Fluid ◽  
Heavy Crude

Abstract This work aims to develop a fracturing nanofluid with a dual purpose: i) to increase heavy crude oil mobility and ii) to reduce formation damage caused by the remaining fluid. Three commercial nanoparticles were evaluated: two fumed silica of different sizes and one type of alumina. They were acidified and basified, obtaining nine nanoparticles (NPs) by the surface modification, characterized by TEM, DLS, Z Potential and Total Acidity. The effect of adding nanoparticles at different concentrations onto the linear gel and heavy crude oil was determined by their rheological behavior. Also, there was assessed the alteration of the rock wettability by contact angle for all NPs and concentrations. Based on these results, the nanoparticle with better performance was the neutral fumed silica of 7 nm at 1000 mg/L. These were used to make a fracturing nanofluid from a commercial fracturing fluid (FF). Both of them were evaluated through their rheological behavior overtime at high pressure following the API RP39 test and quantitative measurements of the rock sample wettability changes. Displacement tests also were performed on proppant and rock samples at reservoir conditions: pressure and temperature. Finally, there was evaluated the rheological behavior of the crude oil recovered in the displacement test. It was possible to conclude that the inclusion of nanoparticles allowed obtaining a reduction of 10 and 20% in the two breakers used in the commercial fracture fluid formulation. An alteration of the rock wettability was achieved, where the rock sample became up to 50% more wettable to water. Moreover, there was a diminution of 53% in the damage caused by the remaining fracturing fluid to the oil effective permeability in the proppant medium. In the rock sample, a decrease of 31% of this kind of damage was observed. Increases of 28 and 18 % in the crude oil recovery were noticed in the proppant and the rock sample, respectively. Finally, there was a reduction of 40% in the crude oil viscosity, showing the effectiveness of adding nanoparticles to fracturing fluids for increasing oil mobility and reducing the formation damage.

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