scholarly journals An Evaluation of Subsurface Microbial Activity Conditional to Subsurface Temperature, Porosity, and Permeability at North American Carbon Sequestration Sites

2016 ◽  
Author(s):  
B. Wilson ◽  
S. Mordensky ◽  
Circe Verba ◽  
K. Rabjohns ◽  
F. Colwell
Keyword(s):  
Carbon Sequestration ◽  
Microbial Activity ◽  
North American ◽  
Subsurface Temperature ◽  
Porosity And Permeability

scholarly journals Reservoir and sealing properties of the Newark rift basin formations: Implications for carbon sequestration

2020 ◽  
Vol 39 (1) ◽  
pp. 38-46
Author(s):  
N. V. Zakharova ◽  
D. S. Goldberg ◽  
P. E. Olsen ◽  
D. Collins ◽  
D. V. Kent
Keyword(s):  
Carbon Sequestration ◽  
Atlantic Coast ◽  
High Porosity ◽  
Rift Basins ◽  
Reservoir Properties ◽  
Porous Flow ◽  
Mafic Intrusions ◽  
Porosity And Permeability ◽  
Structural Architecture ◽  
Newark Basin

The Newark Basin is one of the major Mesozoic rift basins along the U.S. Atlantic coast evaluated for carbon dioxide (CO2) storage potential. Its geologic setting offers an opportunity to assess both the traditional reservoir targets, e.g., fluvial sandstones, and less traditional options for CO2 storage, e.g., mafic intrusions and lavas. Select samples from the basal, predominantly fluvial, Stockton Formation are characterized by relatively high porosity (8%–18%) and air permeability (0.1–50 mD), but borehole hydraulic tests suggest negligible transmissivity even in the high-porosity intervals, emphasizing the importance of scale in evaluating reservoir properties of heterogeneous formations. A stratigraphic hole drilled by TriCarb Consortium for Carbon Sequestration in the northern basin also intersected numerous sandstone layers in the predominantly lacustrine Passaic Formation, characterized by core porosity and permeability up to 18% and 2000 mD. However, those layers are shallow (predominantly above 1 km in this part of the basin) and lack prominent caprock layers above. The mudstones in all three of the major sedimentary formations (Stockton, Lockatong, and Passaic) are characterized by a high CO2 sealing capacity — evaluated critical CO2 column heights exceed several kilometers. The igneous options are represented by basalt lavas, with porous flow tops and massive flow interiors, and a crystalline but often densely fractured Palisade Sill. The Newark Basin basalts may be too shallow for sequestration over most of the basin's area, but many other basalt flows exist in similar rift basins. Abundant fractures in sedimentary and igneous rocks are predominantly closed and/or sealed by mineralization, but stress indicators suggest high horizontal compressional stresses and strong potential for reactivation. Overall, the basin potential for CO2 storage appears low, but select formation properties are promising and could be investigated in the Newark Basin or other Mesozoic rift basins with similar fill but a different structural architecture.

Extending rotation age for carbon sequestration: A cross-protocol comparison of North American forest offsets

2009 ◽  
Vol 259 (2) ◽  
pp. 201-209 ◽  
Author(s):  
Timothy G. Foley ◽  
Daniel deB. Richter ◽  
Christopher S. Galik
Keyword(s):  
Carbon Sequestration ◽  
North American ◽  
Rotation Age

Douglas-fir reforestation in North Apennine (Italy): Performance on soil carbon sequestration, nutrients stock and microbial activity

2015 ◽  
Vol 86 ◽  
pp. 82-90 ◽  
Author(s):  
Livia Vittori Antisari ◽  
Gloria Falsone ◽  
Serena Carbone ◽  
Sara Marinari ◽  
Gilmo Vianello
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Microbial Activity ◽  
Douglas Fir ◽  
Soil Carbon Sequestration

Microfluidics Underground: A Micro-Core Method for Pore Scale Analysis of Supercritical CO2 Reactive Transport in Saline Aquifers

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
Phong Nguyen ◽  
Hossein Fadaei ◽  
David Sinton
Keyword(s):  
Carbon Sequestration ◽  
Chemical Analysis ◽  
Supercritical Co2 ◽  
Small Sample ◽  
Co2 Injection ◽  
Micro Ct ◽  
Pore Scale ◽  
Core Method ◽  
Porosity And Permeability ◽  
Supercritical Co2 Injection

Carbon sequestration in microporous geological formations is an emerging strategy for mitigating CO2 emissions from fossil fuel consumption. Injection of CO2 in carbonate reservoirs can change the porosity and permeability of the reservoir regions, along the CO2 plume migration path, due to CO2-brine-rock interactions. Carbon sequestration is effectively a microfluidic process over large scales, and can readily benefit from microfluidic tools and analysis methods. In this study, a micro-core method was developed to investigate the effect of CO2 saturated brine and supercritical CO2 injection, under reservoir temperature and pressure conditions of 8.4 MPa and 40 °C, on the microstructure of limestone core samples. Specifically, carbonate dissolution results in pore structure, porosity, and permeability changes. These changes were measured by X-ray microtomography (micro-CT), liquid permeability measurements, and chemical analysis. Chemical composition of the produced liquid analyzed by inductively coupled plasma-atomic emission spectrometer (ICP-AES) shows concentrations of magnesium and calcium in the produced liquid. Chemical analysis results are consistent with the micro-CT imaging and permeability measurements which all show high dissolution for CO2 saturated brine injection and very minor dissolution under supercritical CO2 injection. This work leverages established advantages of microfluidics in the new context of core-sample analysis, providing a simple core sealing method, small sample size, small volumes of injection fluids, fast characterization times, and pore scale resolution.

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