... Abstract The Powder River Basin (PRB) unconventional source rock play in Upper Cretaceous Niobrara Formation is exploits up to four different landing zones, although well spacing and field development are still being optimized. Wine rack development can be improved with an understanding...

... Abstract The Niobrara Formation in the Denver Basin is an unconventional oil and gas play composed of highly cyclic, alternating chalk and marl units. These units act as the source, seal and trap for hydrocarbons generated in the organic rich marl beds of the Niobrara. The organic-rich marls...

... Oil & Gas organic matter structural geology chalk facies porosity Niobrara Formation chalk lithofacies petroleum system source rock complex reservoir study area marl mineralogy Denver Basin shale gas chalk sample rock property nanopore carbonate Colorado URTeC: 219...

... Abstract The Niobrara Total Petroleum System (TPS) covers an extensive area across the Rocky Mountain Region, USA. In the Powder River Basin (PRB), the petroleum system consists of source beds in the Upper Cretaceous Niobrara Formation as well as reservoirs in the Upper Cretaceous Frontier...

... Reservoir Characterization structural geology variation log analysis Niobrara Formation thermal maturity Upstream Oil & Gas variability porosity calibration factor npt curve fit correction well logging pore pressure Modeling & Simulation curve fit Powder River basin...

..., was the ability to perform the evaluation on drill cuttings from the laterals, keeping the costs down relative to obtaining and evaluating full and side-wall core. Reservoir Characterization information shale undisturbed reservoir Upstream Oil & Gas variation Niobrara Formation horizontal leg...

... unconventional reservoir challenges. This procedure integrates petrophysics, rock typing, 3D seismic elastic properties, and geostatistics to build the reservoir model, and then directly incorporates the reservoir results into fracture model designs. This methodology was used on the Cretaceous Niobrara formation...

... on the water surface in the reactor during heating. The chalk and marlstone sequence of the Cretaceous Niobrara Formation in the Denver Basin provides an excellent test of this approach with both lithologies being a source and reservoir of retained oil to different degrees. complex reservoir low...

... Abstract The Niobrara Formation consists of deep-water chalks and marl units in the Denver Basin. Chalk units are generally considered the reservoir rock while the marls contain higher total organic carbon (TOC) contents and are considered the source beds. Chalk and marl units consist...

... Abstract The operator has drilled and completed a number of 8,000 to 10,000 foot horizontal wells in the Niobrara Formation in the Piceance Basin in Colorado. The Niobrara Formation in the Piceance Basin is a 1,200 foot thick gas-producing pay-zone of complex rock properties with (35% to 65...

... Summary Unconventional reservoirs are multivariate problems requiring integration of data across multiple disciplines. Microseismic data recording hydraulic fracture treatments in the Niobrara Formation in the Denver Basin are no exception. Microseismic data are the real time recording...

... Summary The Codell Sandstone has recently been the subject of extensive exploration and subsequent development activity in both the Colorado and Wyoming portions of northern DJ Basin. The Niobrara Formation has been the primary historical exploration target since the late 1980's due to success...

... complex reservoir fracture intensity Niobrara Formation Reservoir Characterization Upstream Oil & Gas quarry hydraulic fracturing Grechishnikova listric fault fracture characterization Weimer chalk Denver Basin flower structure fracture swarm lithofacies-bound fracture...

.... , , 1998 , Nature and distribution of Niobrara lithologies in the Cretaceous Western Interior seaway of the Rocky Mountain Region : The Mountain Geologist , v. 35 , no. 4 , p. 137 – 170 . Lowman , B.M. , 1982 , Stratigraphy of the upper Benton and lower Niobrara formations (Upper Cretaceous...

... in South Dakota, and the South Dakota School of Mines and Technology to assess the hydrocarbon potential of the Niobrara Formation in south-central South Dakota. The intent was to introduce Native American students to the energy resource evaluation process, providing context and experience that could...

... hydraulic fracturing shale gas complex reservoir production log Niobrara Formation completion design spe-178635-m urtec lateral fault plane well placement wellbore Upstream Oil & Gas GeoModel stimulation workflow production contribution information united states placement Summary...

... Transactions , v. 60 , p. 693 – 702 . Abstract All intervals within the Smoky Hill Mbr. of the Niobrara Formation (informally, Nio "A", "B", and "C"), as well as the overlying Sharon Springs Mbr. of the Pierre Shale have bentonites which range from 4" thick in the Sharon Springs to <1/8" thick...

... Summary The organic-rich marls within the Niobrara Formation act as source rocks while the chalks act as reservoirs. The hydrocarbon potential of a source rock is highly dependent on its organic content and maturity. Different empirical relationships were developed to estimate TOC from logs...

... Summary Horizontal drilling and artificial stimulation have made the Cretaceous Niobrara Formation, Denver-Julesburg Basin, a prolific, self-sourced, unconventional reservoir that yields both gas and liquids. As a carbonate-dominated reservoir, pore networks documented in most other...

... residual fracture pores, thereby reducing fracture permeability. In order to better understand fluid transport in the Niobrara Formation, we studied the influence of cementation on flow in the fracture. We acquired the fracture geometry from x-ray microtomography (CT) scans, capturing the small-scale...