Philosophy of EOR

T Babadagli - SPE Asia Pacific Oil and Gas Conference and …, 2020 - onepetro.org
This paper seeks answers, through a 'philosophical'approach, to the questions of whether
enhanced oil recovery projects are purely driven by economic restrictions (ie oil prices) or if …

Phase behavior of heavy oil–solvent mixture systems under reservoir conditions

XF Sun, ZY Song, LF Cai, YY Zhang, P Li - Petroleum Science, 2020 - Springer
A novel experimental procedure was proposed to investigate the phase behavior of a
solvent mixture (SM)(64 mol% CH 4, 8 mol% CO 2, and 28 mol% C 3 H 8) with heavy oil …

Comprehensive experimental study of the interfacial stability of foamy oil and identification of the characteristic responsible for foamy oil formation

X Sun, Y Zhang, Z Gai, H Zhao, G Chen, Z Song - Fuel, 2019 - Elsevier
Solution gas drive from some heavy oil reservoirs exhibits foamy oil behavior. However, the
characteristics of oil that determine whether foamy oil behavior occurs have not been …

Wettability of hybrid nanofluid-treated sandstone/heavy oil/brine systems: implications for enhanced heavy oil recovery potential

X Sun, Y Zhang, G Chen, T Liu, D Ren, J Ma… - Energy & …, 2018 - ACS Publications
In this work, we investigated heavy oil/brine systems on oil-wet sandstone surfaces to
quantify the performance of hybrid nanofluids (HNFs) for wettability alteration. In the first …

Experimental study on the enhanced ultra-heavy oil recovery using an oil-soluble viscosity reducer and CO2 assisted steam flooding

W Liu, L Du, X Zou, T Liu, X Wu, Y Wang… - Geoenergy Science and …, 2023 - Elsevier
Ultra-heavy oil resources have gained extensive attention due to their abundant reserves
and the shortage of conventional hydrocarbon resources. In this work, we investigate the …

Experimental study on chemical-assisted methane flooding for foamy oil reservoirs after primary production

X Li, X Sun, Z Yang, H Gong, T Li, X Shi - Journal of Petroleum Science and …, 2022 - Elsevier
As the foamy oil phenomenon disappears gradually, the produced gas-oil ratio of foamy oil
reservoirs increases rapidly and the well productivity declines fast. This paper presents a …

An experimental study on the oil-soluble surfactant-assisted cyclic mixed solvent injection process for heavy oil recovery after primary production

X Sun, H Zhao, Y Zhang, Y Liu, G Chen, W Wang - Fuel, 2019 - Elsevier
Cyclic solvent injection (CSI) has shown a significant potential to enhance heavy oil
recovery after primary production. However, the principal limitation of this process is quick …

Propane–Bitumen Interactions during Cyclic Solvent Injection─ A Cold Lake Case Study

S Mohammadi, L Yuan, M Yousefi… - Energy & …, 2023 - ACS Publications
Common bitumen recovery processes, such as steam-assisted gravity drainage (SAGD) and
vapor extraction (VAPEX), are not suitable for thin reservoirs due to the heavy consumption …

Mechanistic modelling of non-equilibrium interphase mass transfer during solvent-aided thermal recovery processes of bitumen and heavy oil

A Al-Gawfi, H Nourozieh, E Ranjbar, H Hassanzadeh… - Fuel, 2019 - Elsevier
One of the important mechanisms involved in solvent-aided thermal recovery processes is
interphase-mass transfer phenomenon. However, in current reservoir simulation models a …

Mechanics of foamy oil during methane-based cyclic solvent injection process for enhanced heavy oil recovery: a comprehensive review

E Basilio, T Babadagli - SPE Reservoir Evaluation & Engineering, 2020 - onepetro.org
Foamy oil flow is a commonly encountered drive mechanism in the primary production
(depletion of naturally methane‐saturated heavy oil) and secondary stage (cyclic gas …