Viscosity models for bitumen–solvent mixtures

OS Alade, DA Al Shehri, M Mahmoud… - Journal of Petroleum …, 2021 - Springer
Viscosity is the resistance of a material to continuous deformation exerted by shear force.
High viscosity, which is sometimes greater than 1 million mPa s, at the initial reservoir …

[HTML][HTML] Experimental study of Iranian heavy crude oil viscosity reduction by diluting with heptane, methanol, toluene, gas condensate and naphtha

AHS Dehaghani, MH Badizad - Petroleum, 2016 - Elsevier
Due to the high viscosity of heavy crude oils, production from these reservoirs is a
demanding task. To tackle this problem, reducing oil viscosity is a promising approach …

Comparative study of oil-dilution capability of dimethyl ether and hexane as steam additives for steam-assisted gravity drainage

KH Baek, K Sheng, FJ Argüelles-Vivas… - … Reservoir Evaluation & …, 2019 - onepetro.org
Dimethyl ether (DME) was investigated as a potential additive to steam to improve steam‐
assisted gravity drainage (SAGD) in a previous simulation study. The main objective of this …

Density and Viscosity of Multicomponent Solvent (n-Pentane + n-Hexane + n-Heptane + cyclo-Hexane + Toluene) and Bitumen Mixtures─Implications for In Situ …

MSF Khan, H Hassanzadeh - Energy & Fuels, 2023 - ACS Publications
Conventional techniques for extracting and transporting bitumen, such as steam-assisted
gravity drainage (SAGD), are associated with significant environmental drawbacks and …

Quantification of viscosity for solvents− heavy oil/bitumen systems in the presence of water at high pressures and elevated temperatures

Z Chen, X Li, D Yang - Industrial & Engineering Chemistry …, 2018 - ACS Publications
In this study, a new and pragmatic methodology has been developed to accurately predict
the viscosity for light solvents (ie, methane, ethane, propane, n-butane, n-pentane, N2, and …

Compositional mechanisms in steam-assisted gravity drainage and expanding-solvent steam-assisted gravity drainage with consideration of water solubility in oil

AV Venkatramani, R Okuno - SPE Reservoir Evaluation & Engineering, 2017 - onepetro.org
Experimental data have shown that the solubility of water in the oleic (L) phase (x wL) can
be significant at elevated temperatures. However, x wL was not properly considered in prior …

Quantification of Phase Behaviour and Physical Properties of Alkane Solvents/CO2/ Water/Heavy Oil Systems under Equilibrium and Nonequilibrium Conditions

D Yang, Y Li, D Huang - SPE Canadian Energy Technology …, 2022 - onepetro.org
The hybrid steam-solvent injection has been considered as a promising technique for
enhancing heavy oil/bitumen recovery, while its main mechanisms including the heat …

Reducing the energy and steam consumption of SAGD through cyclic solvent co-injection

D Manfre Jaimes, ID Gates, M Clarke - Energies, 2019 - mdpi.com
The amount of oil that is contained in the Canadian oil sands represent the third largest oil
accumulation in the world. Approximately half of the daily oil production from the oil sands …

A phase-behavior study for n-hexane/bitumen and n-octane/bitumen mixtures

J Gao, R Okuno, HA Li - SPE Journal, 2018 - onepetro.org
Steam/solvent coinjection has been studied as a potential method to improve the efficiency
of conventional steam-assisted gravity drainage (SAGD) for bitumen recovery. This research …

Scaled physical experiments on drainage mechanisms of solvent-expanded SAGD in super-heavy oil reservoirs

WU Yongbin, LIU Xueqi, DU Xuan, Z Xiaoyi… - Petroleum Exploration …, 2020 - Elsevier
In view of high oil viscosity at high temperatures, slow steam chamber expansion rate, low
oil rate, and low oil/steam ratio of domestic super heavy oil blocks developed with dual …