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Open-File Report 00-372



Water co-produced with coalbed methane in the Powder River Basin, Wyoming: preliminary compositional data


Rice, C.A.1 Ellis, M.S.1, and Bullock, J.H., Jr.1

Open File-Report 00-372


This report is preliminary and has not been reviewed for conformity with the U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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Table of Contents

Geologic Setting
Results and Discussion

List of Figures
Figure 1. Generalized geologic map of the Powder River Basin, Wyoming and Montana showing the basin axis, counties, major cities.

Figure 2. Cross section showing an example of the complex stratigraphic relationship of coal beds in part of the Tongue River Member of the Fort Union Formation.

Figure 3. Composite stratigraphic column showing the Upper Cretaceous Lance Formation (part) and Tertiary Fort Union and Wasatch Formations in the Powder River Basin, Wyoming and Montana. 

Figure 4. Map showing the Powder River Basin, counties, and location of well sites sampled for this study.

Figure 5. Collecting filtered samples for analysis.

Figure 6. Distribution of total dissolved solids in water co-produced with coalbed methane from the Wyodak-Anderson coal zone. 

List of Tables

Table 1. Information on wells sampled. Information is from Wyoming Oil and Gas Conservation Commission well files and completion reports.

Table 2. Measured parameters and major and minor element concentrations in waters produced with coalbed methane from wells in the Powder River Basin, Wyoming.

Table 3. Trace element concentrations in water produced with coalbed methane from wells in the Powder River Basin, Wyoming.

¹ U.S. Geological Survey, Denver, CO

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