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Basal heat flow from the crystalline basement and lithospheric mantle into the sedimentary column is a required boundary condition in the petroleum systems model. The model uses two basal heat flow conditions that are described using two ASCII grids that show map variations in heat flow (mW/m2). The “BHF000_BasalHeatFlow_Calib.asc” grid describes the modern-day basal heat flow calibrated to, and derived from subsurface temperature data, including 24 high-resolution static temperature logs from the North Dakota Geological Survey and a large proprietary dataset (>1,000) of drill stem test (DST) and bottom hole temperatures (BHT) from boreholes throughout Montana and North Dakota provided by IHS Markit ® (2022). This...
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The model layer facies grids describe geographic variations in lithology mixtures (facies) used in the 3D petroleum systems model of the Williston Basin. The grids provide constraints on the physical properties used in the model simulation, including mechanical compaction, thermal conductivity, heat capacity, radiogenic heat, porosity and permeability trends, diagenesis, and capillary entry pressures. The grids were derived from borehole geophysical log signatures from two key model layers: the middle member of the Devonian-Mississippian Bakken Formation and the Upper Ordovician Icebox Formation. All the other model layers used a single lithology mixture and were not represented by gridded facies maps. This is a...
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The lake and reservoir water-quality data were compiled from Water Quality Portal (https://www.waterqualitydata.us/) (National Water Quality Monitoring Council, 2015), USGS’s NAWQA Project’s data compilation (Oelsner and others, 2017) and the Montana Bureau of Mines and Geology (Montana Bureau of Mines, 2021), The compilation contains data for chloride, pH, specific conductance, sulfate, total dissolved solids (TDS) collected between water year 1970 to 2014. In addition 10 metals (aluminum, arsenic, barium, chromium, copper, iron, lead, selenium strontium, and zinc) analyzed during water years 1993 through 2014. National Water-Quality Monitoring Council, 2015, Water Quality Portal: National Water-Quality Monitoring...
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This dataset provides a compilation of the wetland characteristics, water quality, and aquatic macroinvertebrate community metric data collected from 159 wetlands in Montana and North Dakota within the Prairie Pothole Region of the Williston Basin .
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This data release includes the model input and output files for the 3D petroleum systems model of the Williston Basin. The model was created in Schlumberger's PetroMod version 2020.1. The enclosed folders are standard PetroMod format and contain all data necessary for defining and re-simulating the model. Please contact Tim Nesheim at the North Dakota Geologic Survey (tonesheim@nd.gov) directly for static temperature log data used in the temperature calibration. Proprietary IHS Markit ® (2022) data used for model calibration are also not included in this data release. This is a child item of a larger data release titled "Data release for the 3D petroleum systems model of the Williston Basin, USA".
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The thermal maturity grids are results generated from the petroleum systems model for five major source rock intervals, which include, from youngest to oldest, the Tyler, Mission Canyon, upper part of the Bakken, Red River, and Icebox Formations. The units are in equivalent vitrinite reflectance using the Nielsen et al. (2017) Basin%Ro kinetic model. Note: these grids represent the modeled thermal maturity of the source interval horizon and may extend beyond the lithostratigraphic extent of the inferred source rock; they cover the entire petroleum systems model area of interest. This is a child item of a larger data release titled "Data release for the 3D petroleum systems model of the Williston Basin, USA".
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The input form provides a record of the complete input values required for the quantitative assessment of water and proppant associated with oil and gas production for the continuous oil and gas resource in a geologically defined Assessment Unit, and the same form template is used for all such assessments. Each USGS water and proppant assessment builds from a USGS petroleum assessment that provides the geologic foundation for the water and proppant assessment. Assessment units are defined in the course of conducting the petroleum assessment.
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Shallow subsurface electrical conductivity was mapped at Medwell National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 9 line-kilometers (km) of data were acquired over an area of approximately 1 square-kilometer. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey path;...
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Shallow subsurface electrical conductivity was mapped at Anderson National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 25 line-kilometers (km) of data were acquired over an area of approximately 1 square-kilometer. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey path;...
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Shallow subsurface electrical conductivity was mapped at Rabenberg National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 32 line-kilometers (km) of data were acquired over an area of approximately 1 square-kilometer. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey...
These geospatial data and their accompanying report outline many areas of coal in the United States beneath more than 3,000 ft of overburden. Based on depth, these areas may be targets for injection and storage of supercritical carbon dioxide. Additional areas where coal exists beneath more than 1,000 ft of overburden are also outlined; these may be targets for geologic storage of carbon dioxide in conjunction with enhanced coalbed methane production. These areas of deep coal were compiled as polygons into a shapefile for use in a geographic information system (GIS). The coal-bearing formation names, coal basin or field names, geographic provinces, coal ranks, coal geologic ages, and estimated individual coalbed...
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Advances in drilling technique have facilitated a rapid increase in hydrocarbon extraction from energy shales, including the Williston Basin in central North America. This area overlaps with the Prairie Pothole Region and greater than 35% of wetlands are less than or equal to 1 km from a petroleum-related well. Legacy practices often released saline co-produced waters (brines) that were chloride rich wastes, affecting wetland water quality directly or persisting in sediments. Despite the potential threat of brine contamination to aquatic habitats, there has been little research into their ecological effects. We capitalized on a gradient of legacy brine-contaminated wetlands in northeast Montana to conduct laboratory...
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The missing section grids describe geographic variations in erosion associated with unconformities in the 3D petroleum systems model. The grid values provide inputs for the model to restore layer thicknesses prior to erosion events and at the time of deposition. Each missing section grid here describes the depth of material that was eroded at 70, 50, 43, and 20 million years ago in the model. This is a child item of a larger data release titled "Data release for the 3D petroleum systems model of the Williston Basin, USA".
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The subsurface temperature grids are results/outputs from the 3D petroleum systems model. They represent modern subsurface temperatures in degrees Fahrenheit extracted onto the stratigraphic horizons in the model. The temperature values are calibrated using 24 high-resolution static temperature logs provided by the North Dakota Geological Survey and a large proprietary dataset (>1,000) of drill stem test (DST) and bottom hole temperatures (BHT) from boreholes throughout Montana and North Dakota provided by IHS Markit ® (2022). This is a child item of a larger data release titled "Data release for the 3D petroleum systems model of the Williston Basin, USA".
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Shallow subsurface electrical conductivity was mapped at Dogleg National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 14 line-kilometers (km) of data were acquired over an area of approximately .6 square-kilometers. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey path;...
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Shallow subsurface electrical conductivity was mapped at Bigslough National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 36 line-kilometers (km) of data were acquired over an area of approximately 2 square-kilometers. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey...
In 2018, groundwater samples were collected from aquifers in the Williston Basin in parts of eastern Montana, western North Dakota, and northwestern South Dakota. This dataset includes quality-control data for volatile organic compounds that include data for source-solution blanks and field blanks. The dataset also includes data for sulfur hexafluoride in environmental samples of groundwater.


map background search result map search result map Widespread legacy brine contamination from oil shales reduces survival of chorus frog larvae-Data Wetland characteristics from the Prairie Pothole Region of the Williston Basin (2014-2016) Input forms for 2016 water and proppant assessment of the Bakken and Three Forks Formations, Williston Basin, USA Anderson NWR, Montana, 2017 Bigslough NWR, Montana, 2017 Dogleg NWR, Montana, 2017 Rabenberg NWR, Montana, 2017 Medwell NWR, Montana, 2017 Quality-Control Data for Volatile Organic Compounds and Environmental Sulfur-Hexafluoride Data for Groundwater Samples from the Williston Basin, USA Drill hole data for coal beds in the Paleocene Fort Union Formation in the Williston Basin in Golden Valley County, North Dakota Drill hole data for coal beds in the Paleocene Fort Union Formation in the Williston Basin in Billings County, North Dakota Drill hole data for coal beds in the Paleocene Fort Union Formation in the Williston Basin in McLean County, North Dakota Lake water-quality data for select constituents in Williston Basin, Montana, North Dakota, and South Dakota for water years 1970-2014 Calibrated basal heat flow grids for the 3D petroleum systems model of the Williston Basin, USA PetroMod model files for the 3D petroleum systems model of the Williston Basin, USA Missing section grids for the 3D petroleum systems model in the Williston Basin of North Dakota, South Dakota, and Montana Model layer facies grids for the 3D petroleum systems model of the Williston Basin, USA Subsurface temperature grids for the 3D petroleum systems model of the Williston Basin, USA Calibrated thermal maturity grids for the 3D petroleum systems model of the Williston Basin, USA Medwell NWR, Montana, 2017 Dogleg NWR, Montana, 2017 Rabenberg NWR, Montana, 2017 Anderson NWR, Montana, 2017 Bigslough NWR, Montana, 2017 Widespread legacy brine contamination from oil shales reduces survival of chorus frog larvae-Data Drill hole data for coal beds in the Paleocene Fort Union Formation in the Williston Basin in Golden Valley County, North Dakota Drill hole data for coal beds in the Paleocene Fort Union Formation in the Williston Basin in Billings County, North Dakota Drill hole data for coal beds in the Paleocene Fort Union Formation in the Williston Basin in McLean County, North Dakota Wetland characteristics from the Prairie Pothole Region of the Williston Basin (2014-2016) Lake water-quality data for select constituents in Williston Basin, Montana, North Dakota, and South Dakota for water years 1970-2014 Quality-Control Data for Volatile Organic Compounds and Environmental Sulfur-Hexafluoride Data for Groundwater Samples from the Williston Basin, USA Calibrated basal heat flow grids for the 3D petroleum systems model of the Williston Basin, USA PetroMod model files for the 3D petroleum systems model of the Williston Basin, USA Missing section grids for the 3D petroleum systems model in the Williston Basin of North Dakota, South Dakota, and Montana Model layer facies grids for the 3D petroleum systems model of the Williston Basin, USA Subsurface temperature grids for the 3D petroleum systems model of the Williston Basin, USA Calibrated thermal maturity grids for the 3D petroleum systems model of the Williston Basin, USA Input forms for 2016 water and proppant assessment of the Bakken and Three Forks Formations, Williston Basin, USA