Phase behavior and physical properties of dimethyl ether/water/heavy-oil systems under reservoir conditions

D Huang, R Li, D Yang - SPE Journal, 2021 - onepetro.org
Phase behavior and physical properties including saturation pressures, swelling factors
(SFs), phase volumes, dimethyl ether (DME) partition coefficients, and DME solubility for …

Dimethyl ether as an additive to steam for improved steam-assisted gravity drainage

K Sheng, R Okuno, M Wang - SPE Journal, 2018 - onepetro.org
Coinjection of solvent with steam results in lower chamber-edge temperatures than those in
steam-assisted gravity drainage (SAGD), which enables the decrease of heat losses to the …

Continuous high frequency measurement improves understanding of high frequency torsional oscillation in North America land drilling

Z Zhang, Y Shen, W Chen, J Shi, W Bonstaff… - SPE Annual Technical …, 2017 - onepetro.org
Bit and bottom hole assembly (BHA) rotational speed oscillation is often encountered in
North America land drilling applications. One common type of rotational speed oscillation is …

A systematic comparison of solvents and their concentrations in bitumen gravity drainage under controlled thermodynamic conditions

H Amer, K Sheng, R Okuno, A Al-Gawfi, P Nakutnyy - Fuel, 2024 - Elsevier
Abstract Solvent-assisted SAGD (SA-SAGD) has been studied as an alternative to improve
the efficiency of SAGD. This paper reports a new set of experimental data for SA-SAGD and …

Phase Behavior and Physical Properties of Dimethyl Ether/CO2/Water/Heavy Oil Systems under Reservoir Conditions

D Huang, Y Li, D Yang - SPE Journal, 2023 - onepetro.org
In this paper, techniques have been developed to quantify phase behavior and physical
properties including phase boundaries, swelling factors (SFs), and phase volumes for …

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 …

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 …

Mechanistic simulation study of expanding-solvent steam-assisted gravity drainage under reservoir heterogeneity

AV Venkatramani, R Okuno - Journal of Petroleum Science and …, 2018 - Elsevier
Expanding-solvent steam-assisted gravity drainage (ES-SAGD) is a potential method to
reduce steam-oil ratio (SOR) of SAGD, which is a critical concern especially for highly …

Quantification of phase behaviour of solvents-heavy oil/bitumen systems in the presence of water at high pressures and elevated temperatures

Z Chen, D Yang - Fuel, 2018 - Elsevier
In this work, a new and pragmatic methodology has been developed and validated to predict
phase boundaries together with their types as well as solvent solubility for solvents-heavy …

Viscosity Modeling of Solvent-Heavy Oil/Bitumen Systems at High Pressures and Elevated Temperatures

B Hu, D Yang - International Conference on …, 2024 - asmedigitalcollection.asme.org
This work presents a novel framework for reproducing the measured viscosity of solvent-
heavy oil/bitumen systems by integrating the Peng-Robinson equation of state (PR EOS) …