Lithologic, mineralogical, and petrophysical characteristics of the Eau Claire Formation; complexities of a carbon storage system seal

Concerns about potential climate change related to greenhouse gas emissions have spurred researchers across the world to assess the viability of geologic storage of CO2. In the Illinois Basin in the United States, the Cambrian Mount Simon Sandstone has been targeted as a reservoir for car... Full description

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doi: 10.1306/eg.02081211014
Authors:Neufelder, R.J.; Bowen, B.B.; Lahann, R.W.; Rupp, J.A.
Volume Title:Environmental Geosciences
Source:Environmental Geosciences, 19(3), p.81-104. Publisher: American Association of Petroleum Geologists (AAPG), Division of Environmental Geosciences, Tulsa, OK, United States. ISSN: 1075-9565
Publication Date:2012
Note:In English. 32 refs.; illus., incl. 7 tables, sketch map
Subjects:Authigenic minerals; Brines; Cambrian; Carbon dioxide; Carbon sequestration; Characterization; Clastic rocks; Contaminant plumes; Eau Claire Formation; Fabric; Greenhouse gases; Injection; Lithofacies; Mineral composition; Mount Simon Sandstone; Mudstone; Paleozoic; Permeability; Physical properties; Pollution; Porosity; Regional; Reservoir rocks; Sandstone; Sealing; Sedimentary rocks; Siltstone; Solutes; Storage coefficient; Underground disposal; Upper Cambrian; Waste disposal; Whole rock; X-ray diffraction data; Illinois Basin; Indiana; United States
Coordinates:N374500 N414500 W0844500 W0881000
Record ID:2013002121
Copyright Information:GeoRef, Copyright 2020 American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States, Reference includes data supplied by American Association of Petroleum Geologists
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100 1 |a Neufelder, R.J.  |u Purdue University, Department of Earth and Atmospheric Sciences, West Lafayette, IN 
245 1 0 |a Lithologic, mineralogical, and petrophysical characteristics of the Eau Claire Formation; complexities of a carbon storage system seal 
300 |a p. 81-104 
500 |a In English. 32 refs. 
500 |a Key title: Environmental Geosciences 
500 |a Source note: Environmental Geosciences, 19(3), p.81-104. Publisher: American Association of Petroleum Geologists (AAPG), Division of Environmental Geosciences, Tulsa, OK, United States. ISSN: 1075-9565 
500 |a Publication type: journal article 
504 |b 32 refs. 
506 1 |a Restricted access 
510 3 |a GeoRef, Copyright 2020 American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States, Reference includes data supplied by American Association of Petroleum Geologists 
520 |a Concerns about potential climate change related to greenhouse gas emissions have spurred researchers across the world to assess the viability of geologic storage of CO<2`. In the Illinois Basin in the United States, the Cambrian Mount Simon Sandstone has been targeted as a reservoir for carbon capture and storage (CCS). In this CCS system, the Eau Claire Formation is expected to serve as the primary seal to prevent upward migration of the CO<2` plume; however, little work has been done to specifically determine how well it will function as a seal. Although the lateral extent and thickness of the Eau Claire Formation, along with its generally low permeability, certainly make it a prime candidate to serve in this capacity, the primary depositional fabric and mineralogy, which are the fundamental controls on the petrophysical charter of this unit, remain poorly constrained. Therefore, the purpose of this study is to investigate the lithologic, mineralogical, and petrophysical properties of the Eau Claire Formation in an effort to characterize its potential as a functional seal in a CCS system. Sixty-six core-derived Eau Claire Formation samples from seven wells within the Illinois Basin are described using a combination of petrography, reflectance spectroscopy, x-ray diffraction, geochemical, and petrophysical analyses. These analyses show that the Eau Claire Formation contains five different lithofacies (sandstone, clean siltstone, muddy siltstone, silty mudstone, and shale) with fine-scale heterogeneities in fabric and mineralogy that greatly influence the petrophysical properties. Porosity, permeability, and entry-pressure data suggest that some, but not all, lithofacies within the Eau Claire Formation have the capability to serve as a suitable CCS seal. Abundant authigenic minerals and dissolution textures indicate that multiple generations of past fluid-rock interactions have occurred within the Eau Claire Formation, demonstrating that much of the formation has behaved as a fluid conduit instead of as a seal. Minerals that would be potentially reactive in a CCS system (including carbonate, glauconite, and chlorite) are common in the Eau Claire Formation. Dissolution of these and other phases in the presence of carbonic acid could potentially jeopardize the sealing integrity of the unit. Although complexities in the sealing properties exist, the dynamics of the CCS system and the potential for precipitation of new minerals should allow the Eau Claire Formation to serve as an adequate seal. 
650 7 |a Authigenic minerals  |2 georeft 
650 7 |a Brines  |2 georeft 
650 7 |a Cambrian  |2 georeft 
650 7 |a Carbon dioxide  |2 georeft 
650 7 |a Carbon sequestration  |2 georeft 
650 7 |a Characterization  |2 georeft 
650 7 |a Clastic rocks  |2 georeft 
650 7 |a Contaminant plumes  |2 georeft 
650 7 |a Eau Claire Formation  |2 georeft 
650 7 |a Fabric  |2 georeft 
650 7 |a Greenhouse gases  |2 georeft 
650 7 |a Injection  |2 georeft 
650 7 |a Lithofacies  |2 georeft 
650 7 |a Mineral composition  |2 georeft 
650 7 |a Mount Simon Sandstone  |2 georeft 
650 7 |a Mudstone  |2 georeft 
650 7 |a Paleozoic  |2 georeft 
650 7 |a Permeability  |2 georeft 
650 7 |a Physical properties  |2 georeft 
650 7 |a Pollution  |2 georeft 
650 7 |a Porosity  |2 georeft 
650 7 |a Regional  |2 georeft 
650 7 |a Reservoir rocks  |2 georeft 
650 7 |a Sandstone  |2 georeft 
650 7 |a Sealing  |2 georeft 
650 7 |a Sedimentary rocks  |2 georeft 
650 7 |a Siltstone  |2 georeft 
650 7 |a Solutes  |2 georeft 
650 7 |a Storage coefficient  |2 georeft 
650 7 |a Underground disposal  |2 georeft 
650 7 |a Upper Cambrian  |2 georeft 
650 7 |a Waste disposal  |2 georeft 
650 7 |a Whole rock  |2 georeft 
650 7 |a X-ray diffraction data  |2 georeft 
651 7 |a Illinois Basin  |2 georeft 
651 7 |a Indiana  |2 georeft 
651 7 |a United States  |2 georeft 
700 1 |a Bowen, B.B. 
700 1 |a Lahann, R.W. 
700 1 |a Rupp, J.A. 
773 0 |t Environmental Geosciences  |d Tulsa, OK : American Association of Petroleum Geologists (AAPG), Division of Environmental Geosciences, Sep. 2012  |x 1075-9565  |n Environmental Geosciences, 19(3), p.81-104. Publisher: American Association of Petroleum Geologists (AAPG), Division of Environmental Geosciences, Tulsa, OK, United States. ISSN: 1075-9565  |g Vol. 19, no. 3  |h illus., incl. 7 tables, sketch map 
856 |u urn:doi: 10.1306/eg.02081211014