Effects of thermal stresses on caprock integrity during CO2 storage

Protection of Caprock Integrity for Large-Scale CO2 Storage on the Norwegian Continental Shelf

SSRN Electronic Journal ◽

10.2139/ssrn.3365962 ◽

2019 ◽

Author(s):

Sarah Gasda ◽

Ivar Aavatsmark ◽

Bahman Bohloli ◽

Helge Hellevang ◽

Jan Nordbotten ◽

...

Keyword(s):

Continental Shelf ◽

Large Scale ◽

Co2 Storage ◽

Caprock Integrity ◽

Norwegian Continental Shelf

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Multiscale Assessment of Caprock Integrity for Geologic Carbon Storage in the Pennsylvanian Farnsworth Unit, Texas, USA

10.20944/preprints202102.0121.v1 ◽

2021 ◽

Author(s):

Natasha Trujillo ◽

Dylan Rose-Coss ◽

Jason E. Heath ◽

Thomas A Dewers ◽

William Ampomah ◽

...

Keyword(s):

Oil Recovery ◽

Noble Gas ◽

Co2 Storage ◽

Mercury Porosimetry ◽

Coupled Processes ◽

Data Set ◽

Sedimentary Architecture ◽

Caprock Integrity ◽

Regional Partnership ◽

Combined Data

The assessment of caprock integrity for underground storage of CO2 and/or enhanced oil recovery (EOR) systems is a multiscale endeavor. Caprock sealing behavior depends on coupled processes that operate over a broad range of length and time scales including nanoscale heterogeneity in capillary and wettability properties to depositional heterogeneity that is basin wide. Larger-scale sedimentary architecture, fractures, and faults can govern properties of potential “seal-bypass” systems that may be difficult to assess. We present a multiscale investigation of geologic sealing integrity of the caprock system that overlies the Morrow B sandstone reservoir, Farnsworth Unit, Texas, USA. The Morrow B sandstone is the target geologic unit for an on-going combined CO2 storage–EOR project by the Southwest Regional Partnership on Carbon Sequestration (SWP). Methods and/or data encompass small-to-large scales, including: petrography using electron and optical microscopy; mercury porosimetry; core examinations of sedimentary architecture and fractures; well logs; a suite of geomechanical testing; and a noble gas profile through sealing lithologies into the reservoir, as preserved from fresh core. The combined data set allows a comprehensive examination of sealing quality by scale, by primary features that control sealing behavior, and an assessment of sealing behavior over geologic time.

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The effects of lateral variations in rock composition and texture on anhydrite caprock integrity of CO2 storage systems

International Journal of Rock Mechanics and Mining Sciences ◽

10.1016/j.ijrmms.2014.03.001 ◽

2014 ◽

Vol 69 ◽

pp. 80-92 ◽

Cited By ~ 12

Author(s):

S.J.T. Hangx ◽

A.M.H. Pluymakers ◽

A. Ten Hove ◽

C.J. Spiers

Keyword(s):

Storage Systems ◽

Co2 Storage ◽

Rock Composition ◽

Caprock Integrity ◽

Lateral Variations

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How can biogeomechanical alterations in shales impact caprock integrity and CO2 storage?

Fuel ◽

10.1016/j.fuel.2021.120149 ◽

2021 ◽

Vol 291 ◽

pp. 120149

Author(s):

Oladoyin Kolawole ◽

Ion Ispas ◽

Mallika Kumar ◽

Joachim Weber ◽

Bo Zhao ◽

...

Keyword(s):

Co2 Storage ◽

Caprock Integrity

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Deformation at interfaces of Ti-6Al-4V/SiC fiber composites

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100121193 ◽

1992 ◽

Vol 50 (1) ◽

pp. 158-159

Author(s):

Warren J. Moberly ◽

Daniel B. Miracle ◽

S. Krishnamurthy

Keyword(s):

Thermal Stresses ◽

Load Transfer ◽

Coefficient Of Thermal Expansion ◽

Hot Isostatic Pressing ◽

Matrix Composites ◽

Ongoing Research ◽

Aerospace Applications ◽

Sic Fiber ◽

The Matrix ◽

Intermetallic Matrix Composites

Titanium-aluminum alloy metal matrix composites (MMC) and Ti-Al intermetallic matrix composites (IMC), reinforced with continuous SCS6 SiC fibers are leading candidates for high temperature aerospace applications such as the National Aerospace Plane (NASP). The nature of deformation at fiber / matrix interfaces is characterized in this ongoing research. One major concern is the mismatch in coefficient of thermal expansion (CTE) between the Ti-based matrix and the SiC fiber. This can lead to thermal stresses upon cooling down from the temperature incurred during hot isostatic pressing (HIP), which are sufficient to cause yielding in the matrix, and/or lead to fatigue from the thermal cycling that will be incurred during application, A second concern is the load transfer, from fiber to matrix, that is required if/when fiber fracture occurs. In both cases the stresses in the matrix are most severe at the interlace.

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