CO2 miscible flooding in low permeability sandstone reservoirs and its influence on crude oil properties
Title
CO2 miscible flooding in low permeability sandstone reservoirs and its influence on crude oil properties
Subject
Asphaltenes
Crude oil
Viscosity
Carbon dioxide
Enhanced recovery
Oil fields
Low permeability reservoirs
Petroleum reservoir engineering
Deposits
Floods
Oil well flooding
Reservoirs (water)
Sandstone
Description
Miscible CO2 injection process has become widely used technique for the enhanced oil recovery in low permeability reservoirs. Core flooding experiments and field test of CO2 miscible flooding in low permeability sandstone reservoirs and its influence on crude oil properties was studied. The results showed that CO2 miscible flooding in low permeability sandstone reservoirs can enhance oil recovery both in laboratory study and field test. The permeability of sandstone reservoirs decreased during CO2 miscible flooding due to the precipitation of asphaltene of crude oil. The precipitation of asphaltene lead to a reduction of asphaltene content and the apparent viscosity of crude oil. A further study on inhibitors and removers for asphaltene deposits from crude oil should be investigated to prevent and remove asphaltene deposits in low permeability sandstone reservoirs. 2017 Taylor & Francis Group, LLC.
2024-2029
35
Publisher
Petroleum Science and Technology
Date
2017
Contributor
Xu, Bin
Type
journalArticle
Identifier
10916466
10.1080/10916466.2017.1377235
Collection
Citation
“CO2 miscible flooding in low permeability sandstone reservoirs and its influence on crude oil properties,” Lamar University Midstream Center Research, accessed May 13, 2024, https://lumc.omeka.net/items/show/24811.