Assessment of CO2 geological storage capacity in the oilfields of the Songliao Basin, northeastern China

2015 ◽  
Vol 20 (2) ◽  
pp. 247-257 ◽  
Author(s):  
Shanghai Du ◽  
Xiaosi Su ◽  
Wei Xu
Keyword(s):  
Storage Capacity ◽  
Northeastern China ◽  
Songliao Basin ◽  
Geological Storage ◽  
Co2 Geological Storage

scholarly journals CO2 geological storage capacity analysis in Estonia and neighbouring regions

2011 ◽  
Vol 4 ◽  
pp. 2785-2792 ◽  
Author(s):  
Alla Shogenova ◽  
Kazbulat Shogenov ◽  
Rein Vaher ◽  
Jüri Ivask ◽  
Saulius Sliaupa ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Capacity Analysis ◽  
Geological Storage ◽  
Co2 Geological Storage

The impact of heterogeneous mixed siliciclastic-carbonate systems on CO2 geological storage

2021 ◽  
pp. petgeo2020-086
Author(s):  
Azadeh Pourmalek ◽  
Andrew J. Newell ◽  
Seyed M. Shariatipour ◽  
Adrian M. Wood
Keyword(s):  
Storage Capacity ◽  
Co2 Storage ◽  
Significant Feature ◽  
Carbonate Sediments ◽  
Geological Storage ◽  
Co2 Geological Storage ◽  
Content Type ◽  
Storage Security ◽  
The Impact ◽  
Mixed Systems

Three different outcrops are selected in this study, each representing a shallow marine system with varying heterogeneity provided by siliciclastic-carbonate mixing that may form a small or large stratigraphic trap. The impact of these styles of mixed facies on CO2 storage is relatively poorly known. This study demonstrates the significance of these systems for safe CO2 geological storage, as stratigraphic traps are likely to be a significant feature of many future storage sites. The three 3D models are based on the: 1. Grayburg Formation (US), which displays spatial permeability linked to variations in the mixture of siliciclastic-carbonate sediments; 2. Lorca Basin outcrop (Spain), which demonstrates the interfingering of clastic and carbonate facies; and 3. Bridport Sand Formation outcrop (UK), an example of a layered reservoir, which has thin carbonate-cemented horizons.This study demonstrates that facies interplay and associated sediment heterogeneity have a varying effect on fluid flow, storage capacity and security. In the Grayburg Formation, storage security and capacity are not controlled by heterogeneity alone but influenced mainly by the permeability of each facies (i.e., permeability contrast), the degree of heterogeneity, and the relative permeability characteristic of the system. In the case of the Lorca Basin, heterogeneity through interfingering of the carbonate and clastic facies improved the storage security regardless of their permeability. For the Bridport Sand Formation, the existence of extended sheets of cemented carbonate contributed to storage security but not storage capacity, which depends on the continuity of the sheets. These mixed systems specially minimise the large buoyancy force that act on the top seal and reduce the reliance of the storage security on the overlying caprock. They also increase the contact area between injected CO2 and brine, thereby promoting the CO2 dissolution processes. Overall, mixed systems contribute to the safe storage of CO2.Thematic collection: This article is part of the Geoscience for CO2 storage collection available at: https://www.lyellcollection.org/cc/geoscience-for-co2-storage

scholarly journals Evaluation of Barriers to National CO2 Geological Storage Assessments

2017 ◽  
Vol 114 ◽  
pp. 4750-4756 ◽  
Author(s):  
Ceri J. Vincent ◽  
M.S. Bentham ◽  
K.L. Kirk ◽  
M.C. Akhurst ◽  
J.M. Pearce
Keyword(s):  
Geological Storage ◽  
Co2 Geological Storage
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