Niobrara and Greenhorn Formations Geological and Petrophysical Database for DJ and Raton Basins
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Niobrara and Greenhorn Formations Geological and Petrophysical Database for the DJ and Raton Basins

This three-part study covers the DJ basin Niobrara and Greenhorn tight oil plays from SE Wyoming to the New Mexico border. The objective of the project is to provide a regional framework with the data needed to quickly extend your mapping across the entire play fairway; to provide completed regional maps and sections for screening lease acquisition and drilling opportunities; and to build an immediately workable dataset to give new entrants a head start on their geologic evaluations.

North Half - Formation tops, digital log curves, petrophysical properties, geologic maps, and new vitrinite reflectance measurements for the northern DJ basin play fairway from the city of Denver north into Wyoming.

South Half - Formation tops, digital log curves, petrophysical properties, geologic maps, and new vitrinite reflectance measurements for the southern Colorado portion of the DJ basin  and the Raton basin.

Niobrara
  • Digital database in Petra or ASCII format, delivered on DVD
  • Basic well header data, non-proprietary X-Y locations
  • Digital land base
  • Vitrinite reflectance measurements for 147 wells in the North and 62 in the South
  • Formation tops include:
    • Niobrara Formation and five internal markers
    • Fort Hays Limestone
    • Carlile Shale
    • Greenhorn Formation
    • Graneros Formation
    • X-bentonite Marker
    • D-sand
    • J-sand
  • Digitized log curves in almost 700 Niobrara wells, most with density and neutron curves
    • At least 449 wells in North and 223 wells in South
  • Zone averages of key petrophysical properties
  • Over 50 maps and associated regional cross sections in PDF format, including:
    • Thickness of Niobrara, Greenhorn and each sub-interval
    • Structure and drilling depth to base of Niobrara
    • Average density and neutron porosity, resistivity and water saturation by unit
    • Mean TOC computed from bulk density for Niobrara and Greenhorn

For more details and pricing information, contact us

Niobrara Oil Fairway Study Outline 

Niobrara vitrinite reflectance






The Discovery Group
Geologist & Petrophysicist in Denver
1560 Broadway, Suite 1470, Denver, CO 80202