Enhanced oil recovery in shale reservoirs by gas injection

JJ Sheng - Journal of Natural Gas Science and Engineering, 2015 - Elsevier
Highlights•Provide a comprehensive description of alkaline-crude oil reaction.•Quantify how
much surfactant can be generated by such reaction.•Discuss about the reasons for low oil …

A technical review of CO2 for enhanced oil recovery in unconventional oil reservoirs

C Sambo, N Liu, R Shaibu, AA Ahmed… - Geoenergy Science and …, 2023 - Elsevier
Unconventional oil reservoirs have become an increasingly essential resource for energy in
recent years. Despite the massive oil reserves in these reservoirs, as well as the current …

Molecular insights into carbon dioxide enhanced multi-component shale gas recovery and its sequestration in realistic kerogen

S Wang, X Yao, Q Feng, F Javadpour, Y Yang… - Chemical Engineering …, 2021 - Elsevier
Understanding the governing processes of CO 2 huff-n-puff in shales is essential for
enhancing shale gas recovery and CO 2 sequestration. However, existing studies have not …

An Experimental Study of Cyclic CO2 Injection to Improve Shale Oil Recovery

TD Gamadi, JJ Sheng, MY Soliman… - SPE Improved Oil …, 2014 - onepetro.org
The low recovery and high oil volume remaining in shale oil reservoirs are a strong
motivation to investigate the application of enhanced oil recovery methods in these …

Monitoring oil displacement and CO2 trapping in low-permeability media using NMR: A comparison of miscible and immiscible flooding

M Cai, Y Su, Y Hao, Y Guo, D Elsworth, L Li, D Li, X Li - Fuel, 2021 - Elsevier
Dynamic monitoring of the internal fluid distribution during CO 2 immiscible/miscible flooding
provides a crucial window for illuminating key processes controlling displacement and …

Oil Recovery Performance of Immiscible and Miscible CO2 Huff-and-Puff Processes

A Abedini, F Torabi - Energy & Fuels, 2014 - ACS Publications
The recovery performance of immiscible and miscible CO2 huff-and-puff processes for
enhanced oil recovery (EOR) in a light crude oil sample was experimentally investigated …

Microscopic transport and phase behaviors of CO2 injection in heterogeneous formations using microfluidics

Y Guo, F Liu, J Qiu, Z Xu, B Bao - Energy, 2022 - Elsevier
CO 2 injection into the geological formations is a promising option to enhance oil recovery
while simultaneously contributing to carbon storage. Conventional core tests provide critical …

Recovery mechanisms of hydrocarbon mixtures in organic and inorganic nanopores during pressure drawdown and CO2 injection from molecular perspectives

M Zhang, S Zhan, Z Jin - Chemical Engineering Journal, 2020 - Elsevier
Competitive adsorption of hydrocarbon mixtures (C 1-C 2-C 3) as well as CO 2 in shale
nanopores is of critical importance to CO 2 enhanced shale gas recovery. While …

Enhanced light oil recovery from tight formations through CO2 huff 'n'puff processes

J Ma, X Wang, R Gao, F Zeng, C Huang… - Fuel, 2015 - Elsevier
The major objective of this paper was to evaluate the viability of CO 2 huff 'n'puff processes
as primary means to enhance oil recovery in low-pressure tight reservoirs and thereby …

The influence of CO2 huff and puff in tight oil reservoirs on pore structure characteristics and oil production from the microscopic scale

X Huang, X Wang, M He, Y Zhang, Z Su, X Li, W Yang… - Fuel, 2023 - Elsevier
CO 2 huff-n-puff can store CO 2 and improve the recovery of tight oil reservoir. The
asphaltene precipitation produced by the interaction of CO 2 and oil causes damage to tight …