Genesis NRG, Inc. is Basin set for the exploration of oil and gas in the Denver Julesburg Basin. Oil and natural gas were first discovered in the area around Boulder in 1901, but it is likely that reserves still lay untapped. The Denver Julesburg Basin area of the Niobrara formation is an ideal location for undiscovered oil and natural gas reserves because of the long amount of time the basin has been at a sufficient depth.
According to the Colorado Department of Natural Resources, the deepest part of the Niobrara formation near Denver is about 8000 feet below the surface. This deep portion of the basin extends from the eastern part of the Front Range to the Colorado-Kansas border, which shows rock layers that dip gently while moving westward.
The natural shape of the Denver Julesburg Basin is in approximately the same shape as the sedimentary basin that formed over 60 million years ago during the Cretaceous period. However, this older sedimentary basin is larger than the Denver Julesburg Basin is today.
Both the depth and the temperature of the rock in the basin are very important in the possibility of the accrual of oil and gas deposits. Temperature increases the greater the depth according to the geothermal gradient, but the geothermal gradient is known to vary between locations in Colorado. This means that other factors also play an important role in the formation of oil and gas reserves.
Factors other than depth that are important include the specific type of rock and the thickness of the rock. Variations of heat through the mantle and into the crust of the Earth is another factor.
The Colorado Geological Survey's Newsletter, Rock Talk, describes how sedimentary basins such as the Denver Basin may include shale deposits. Shale has a low thermal conductivity and can greatly affect the temperature of the basin.
The presence of shale, however, allows scientists working for Genesis NRG, Inc. to calculate the geothermal gradient of the Denver Basin based on the existing oil and gas wells in the Niobrara formation.
The compression after millions of years of organic decay by bacteria and fungi offers a valuable crop of hydrocarbon by products trapped in layers of Source Rock or shale. This is the latest source of home grown crude oil and natural gas for the nation's energy producers. The force of compression is only part of the natural process of production of deep rock fossil fuels. Source rock acts as a mega pressurization distiller of oil that must be assisted by other natural forces to cause the by product to flow through the porous constitution of the source rocks to a reservoir where the by products are pooled and available for harvest. Much as any garlic or vegetable press is used in distillation of olive oil, vegetable oil or garlic oils, the earth must do the same with these crude fossil fuels. Time is essentially the force that will do the most work as there will be no more room for the broken down natural oils from bacterial and fungal activities. Eventually the rocks will ooze and then burst with these oils and gases as the volume must go somewhere. Displacement will cause the migration of oils if not assisted by some other means.
Earth geologists, energy engineers apply drilling and fracting techniques which are more ecologically friendly such as horizontal and vertical drilling to harvest these accessible stores that were created some 80 million years ago in the Niobrara Formation of source rock. With water depth and water circulation flows located in the Cretaceous Inland Seaway, movement of these oil shales have been found. Niobrara Shales are notably abundant in these types of highly compressed sub surface stores. Something to take note of as well is the presence of shallow stores of a similar kerogenic light crude oil and gas reserve. From the thermal migration of gas and oil through higher elevations in the Raton Basin of the southern central regions of Colorado, along with the Wattenberg Field in the northwestern region of Denver, a discovery of the kerogen conversion has taken place at more accessible depths than previous finds.
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