Geologic framework for the national assessment of carbon dioxide storage resources: Williston Basin, Central Montana Basins, and Montana Thrust Belt study areas: Chapter J in Geologic framework for the national assessment of carbon dioxide storage resources

Open-File Report 2012-1024- J
By: , and 
Edited by: Peter D. Warwick and M.D. Corum

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Abstract

The 2007 Energy Independence and Security Act directs the U.S. Geological Survey (USGS) to conduct a national assessment of potential geologic storage resources for carbon dioxide (CO2). The methodology used by the USGS for the national CO2 assessment follows that of previous USGS work. This methodology is non-economic and is intended to be used at regional to sub-basinal scales.

The Williston Basin of North Dakota, South Dakota, and Montana, along with the Central Montana Basins and Montana Thrust Belt study areas are adjacent and share similar geologic units. In general, the Williston Basin study area is a wide sedimentary basin, whereas the Central Montana Basins study area contains sedimentary rocks along topographic highs and flat plains, and the Montana Thrust Belt study area is more structurally complex.

This report identifies and contains geologic descriptions of nine storage assessment units (SAUs) in Cambrian to Upper Cretaceous sedimentary rocks within the Williston Basin study area. The Central Montana Basins and Montana Thrust Belt study areas were also investigated for this report. Nevertheless, no SAUs in these study areas were assessed because they contained potential sources of underground drinking water; although sufficient geologic data were available, and suitable storage formations meeting our size, depth, reservoir quality, and regional seal guidelines were found. Ultimately, the report focuses on the characteristics, specified in the methodology, that influence the potential CO2 storage resource in the SAUs. Specific descriptions of the SAU boundaries as well as their sealing and reservoir units are included. Properties for each SAU, such as depth to top, gross thickness, porosity, permeability, groundwater quality, and structural reservoir traps, are usually provided to illustrate geologic factors critical to the assessment. The geologic information herein was employed, as specified in the USGS methodology, to calculate a probabilistic distribution of potential storage resources in each SAU with these assessment outputs contained in a companion results report.

Figures in this report show the study area boundaries along with the SAU extent and cell maps of well penetrations through sealing units into the top of the storage formations. The USGS does not necessarily know the location of all wells and cannot guarantee the full extent of drilling through specific formations in any given cell shown on the cell maps.

Study Area

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Geologic framework for the national assessment of carbon dioxide storage resources: Williston Basin, Central Montana Basins, and Montana Thrust Belt study areas: Chapter J in Geologic framework for the national assessment of carbon dioxide storage resources
Series title Open-File Report
Series number 2012-1024
Chapter J
DOI 10.3133/ofr20121024J
Year Published 2014
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Central Energy Resources Science Center, Energy Resources Program, Eastern Energy Resources Science Center
Description Report: vii, 40 p.; Well Density; Storage Assessment Units
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title Geologic framework for the national assessment of carbon dioxide storage resources (Open-File Report 2012-1024)
Country United States
State Montana, North Dakota, South Dakota
Other Geospatial Central Montana Basins, Montana Thrust Belt, Williston Basin
Projection Albers Equal Area Projection
Online Only (Y/N) Y
Additional Online Files (Y/N) Y