Niobrara formation - A recent U.S. Geological Survey (USGS) oil and gas assessment of the Powder River Basin , Wyoming and Montana, identified the Upper Cretaceous Mowry Shale and Niobrara Formation as the primary hydrocarbon sources for Cretaceous conventional and unconventional reservoirs.

 
Niobrara formationNiobrara formation - The Upper Cretaceous Niobrara Formation in the Denver-Julesburg (D-J) Basin, United States, records late Turonian–early Campanian transgressive–regressive …

High-resolution event stratigraphy of the Niobrara Formation in Colorado at Pueblo and along the northern Colorado Front Range provides a more precise and detailed framework for correlation than traditional lithologic and biostratigraphic methods. Bentonites and shale-limestone bedding couplets can be successfully correlated regionally.Oct 1, 1990 · The Silo field is located in the northern part of the Denver basin. Production is from the fractured Niobrara Formation at depths ranging from 7,600 to 8,500 ft (2,318 to 2,593 m). Cumulative production from 40 vertical wells at Silo is in excess of 1.3 million bbl of oil. Two wells have produced 437,000 bbl of oil. In addition to the Niobrara Formation, other possible source rocks in the Denver Basin include the Cretaceous Belle Fourche (Graneros), Mowry, and Carlile shales, as well as the Greenhorn Formation. Oil generation in these formations began during the Laramide orogeny and continued through the Miocene (Higley and Cox, 2007). The Benton Shale (also Benton Formation or Benton Group) is a geologic formation name historically used in Montana, Wyoming, North Dakota, South Dakota, Colorado, Kansas, and Nebraska. In the "mile high" plains in the center of the continent, the named layers preserve marine fossils from the Late Cretaceous Period.The term Benton Limestone has also …Year defined. 1896 [1] The Smoky Hill Chalk Member of the Niobrara Chalk formation is a Cretaceous conservation Lagerstätte, or fossil rich geological formation, known primarily for its exceptionally well-preserved marine reptiles. [2] Named for the Smoky Hill River, [1] the Smoky Hill Chalk Member is the uppermost of the two structural units ...The enigmatic specimen, Platylithophycus cretaceum, is roughly 1.5-feet long by 10-inches wide and from the Niobrara Formation in Kansas. The Niobrara Formation is one of the most diverse fish ...The samples from the Niobrara Formation have T max values ranging from 419 to 427 °C with an average of 423 °C. Geochemistry. The generative potential for hydrocarbons is estimated based on total pyrolyzable organic carbon content (TOC), thermal maturity, and kerogen type (Hood et al., 1975). Cuttings are often viewed as potentially ...The Niobrara Formation has been drilled in the liquids window along the western and northern margins of the Piceance Basin from 2014 to 2018, with longer lateral lengths and higher proppant ...Niobrara County, Wyoming. The Lance (Creek) Formation is a division of Late Cretaceous (dating to about 69 - 66 Ma) rocks in the western United States. Named after Lance Creek, Wyoming, the microvertebrate fossils and dinosaurs represent important components of the latest Mesozoic vertebrate faunas. The Lance Formation is Late Maastrichtian ...The Niobrara Formation produces commercial quantities of oil from fractures in several places in the Denver basin. The Niobrara in this basin is an oil-prone, mature source rock having as much as 3.4% TOC, and has been in the generating window since early Eocene. This implies that hydrocarbon generation from the Niobrara is partly ...The Niobrara and Benton are not now [ca. 1938] treated as groups, the broader term Colorado group, which includes them both, being considered the more useful group name. ... Skull Creek shale, Newcastle sandstone, Mowry shale, Belle Fourche shale, Greenhorn formation, Carlile shale, and Niobrara formation. Greenhorn formation is largely a light ...This map depicts where the Niobrara geological formation is most likely to contain oil deposits. Much of the recent interest in the Niobrara is in northern Colorado, eastern Nebraska and ...The Niobrara Formation has been drilled in the liquids window along the western and northern margins of the Piceance Basin from 2014 to 2018, with longer lateral lengths and higher proppant ...The Niobrara Formation records life at the heyday of this seaway, from 87 to 82 million years ago between the Coniacian and the Campanian Stages of the Late Cretaceous. Prior to the Niobrara was the rather poorer Dakota Formation and after that comes the Pierre Shale. Contemporaries to Niobrara include the Mooreville Chalk of Alabama.The Niobrara Formation (Upper Cretaceous) in the northern Great Plains is being studied by the U.S. Geological Survey because it includes potential low-permeability reservoirs for natural gas. Subsurface investi­ gations of the Niobrara indicate that three major chalk tongues are found within the unit.The Niobrara Formation produces commercial quantities of oil from fractures in several places in the Denver basin. The Niobrara in this basin is an oil-prone, mature source rock having as much as 3.4% TOC, and has been in the generating window since early Eocene. This implies that hydrocarbon generation from the Niobrara is partly ...In contrast, the Niobrara-Codell formation was not a significant oil producer in the Powder River Basin before 2009, and oil production from this formation is entirely reliant on the application of current petroleum technology. Principal contributors: Philip Budzik, Jack Perrin.The Niobrara Formation is a significant source of dissolved solids and Se and a moderate source of U along the studied reach of the Arkansas River. During both the irrigation and non-irrigation seasons, concentrations of these constituents were substantially greater in Niobrara-influenced surface-water inflows. Although groundwater was not ...The NUMERICAL AGE of multiple beds within the Niobrara formation and Pierre Shale is known based on. Beds of volcanic ash, which accumulated when wind carried ash from eruptions to the west. Students also viewed. Ch 8. 10 terms. drp87. Geo Class Midterm 2. 40 terms. hprice16. final- earth and life though time ...Rice DD (1984) Relationship of hydrocarbon occurrence to thermal maturity of organic matter in the Upper Cretaceous Niobrara Formation, eastern Denver Basin: evidence of biologic versus thermogenic origin of hydrocarbons. In: Woodward J, Meissner FF, Clayton JL (eds) Hydrocarbon source rocks of the Greater Rocky Mountain Region.The lower shaly member of the Cody Shale in the Bighorn Basin, Wyoming and Montana is Coniacian to Santonian in age and is equivalent to the upper part of the Carlile Shale and basal part of the Niobrara Formation in the Powder River Basin to the east. The lower Cody ranges in thickness from 700 to 1,200 feet and underlies much of the central part of the basin.When exceeded, a N 2 gas phase forms in the sedimentary unit. N 2 gas-phase formation partitions other pore-water-dissolved gases from the water into the new gas phase, including He (and H 2 if ...During the irrigation season, median dissolved solids, Se, and U concentrations in Niobrara-influenced inflows were 83%, 646%, and 55%, respectively, greater than medians where Niobrara Formation ...In the Upper Cretaceous Niobrara Formation shale oil play, considerable oil fractions are produced directly from C 14+ bitumen in place (e.g., extractable organic matter). ). This paper provides new insights on the geochemistry and producibility of C 14+ bitumen by integrating the full process of generation, retention, conversion, expulsion, and production, as a whole, in the Niobrara shale ...Pg. 2183-2187, 2197 (fig. 2). Greenhorn formation. Formations in Black Hills that are equivalent to Colorado shale of central and northwestern Montana are (ascending) Fall River sandstone, Skull Creek shale, Newcastle sandstone, Mowry shale, Belle Fourche shale, Greenhorn formation, Carlile shale, and Niobrara formation.Geology Site 2 - At this road cut, the Cretaceous Niobrara Formation is overlain by the Pembina Member, the lowermost member of the Pierre Shale in the area. These rocks were laid down in oceans that covered most of North Dakota about 84 million years ago. The Niobrara consists of light-gray to yellowish-tan, blocky, calcareous marl.Widespread disconformities have been found within the Carlile Shale and between the Carlile Shale and the Niobrara Formation. Less extensive disconformities are within the Greenhorn Formation, the Niobrara Formation, and the Pierre Shale. First posted October 11, 2011. Sheet 1 PDF (109 kb)Gas, oil, and water production data were compiled from selected wells in two tight gas reservoirs-the Codell-Niobrara interval, comprised of the Codell Sandstone Member of the Carlile Shale and the Niobrara Formation; and the Dakota J interval, comprised mostly of the Muddy (J) Sandstone of the Dakota Group; both intervals are of Cretaceous age-in the Wattenberg field in the Denver Basin of ...Cretaceous Niobrara Formation, Northern D-J Basin Defender US33 #2-29H Samson 37.5% Working Interest The first Niobrara appraisal well, the Defender US33 #2-29H, commenced drilling operations in mid August and reached a total depth of 11,089 feet in late September. This well was drilled and funded 100% by Halliburton under their farmin …SandRidge operates on 93,000 acres in the Niobrara formation in Jackson County in northern Colorado, according to its website. More than 80% of the minerals produced is oil.Formation: Niobrara Period(Early): Cretaceous. FHSM VP-18977 Niobrarasaurus coleii (Mehl, 1936) Formation: Niobrara Period(Early): Cretaceous. FHSM VP-19363 Chondrichthyes (Huxley, 1880) Formation: Niobrara Period(Early): Cretaceous. FHSM VP-19521 Ichthyodectidae (Crook, 1892)Nannofossils of the North American Late Cretaceous Western Interior Seaway have been extensively studied, but these investigations have primarily focused on the diverse communities of the Niobrara and Greenhorn sea-level highstands. We lack a firm understanding of the nature of early nannofossil communities from the initial stages of the transgression, and of how the diverse assemblages of the ...Is the upper member of Niobrara Formation above Fort Hays Limestone Member of Niobrara and beneath Pierre Shale. Divided in the Pueblo area, Pueblo Co, CO in Denver basin, into 7 units described in ascending order: 1) shale and limestone unit is a 20 ft thick gray calcareous shale separated into 18 layers by gray shaly limestone, has INOCERAMUS DEFORMIS, is of early and middle Coniacian age; 2 ...The Niobrara Formation ranges in thickness up to about 450 ft (Burchett, 1992) in the play area. The principal reservoir for gas is the upper 10–45 ft of the Smoky Hill Member of the Niobrara Formation. Depths of production range from 1,500 ft (Beecher Island field) to more than 2,900 ft (White Eagle field).The expansion of unconventional petroleum resource exploration and production in the United States has led to an increase in source rock characterization efforts, particularly related to bulk organic and mineralogical properties. To support the analytical and research needs of industry and academia, as well as internal work, the U.S. …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, Turner, Niobrara, Sussex, Shannon, Parkman, Teapot, and Teckla, and Paleocene and Eocene Fort Union and Wasatch ...Pteranodon (/ t ə ˈ r æ n ə d ɒ n /); from Ancient Greek πτερόν (pteron 'wing') and ἀνόδων (anodon 'toothless') is a genus of pterosaur that included some of the largest known flying reptiles, with P. longiceps having a …Aug 24, 2009 · NIOBRARA LIMESTONE. The Pierre shale is underlain by the Niobrara limestone, but this formation does not reach the surface in the portion of Nebraska west of the one hundred and third meridian. As, however, it would be reached by deep borings for artesian water, some of its characteristics should be pointed out. Its thickness is about 50 feet. The Niobrara shale is an organic-rich source rock in the Denver-Julesberg (DJ) basin. Although it is in the early stages of exploration and development, the Niobrara is being compared to the Eagleford shale and the Bakken shale, in a geologic and reservoir context. At the Cemex quarry, the over-sized van was a great place for a poster ...The Niobrara Formation in the Raton basin of northeastern New Mexico consists of the Fort Hays Limestone Member, about 20 ft thick, and the overlying Smoky Hill Shale Member, 800-900 ft thick.The Niobrara Formation was named by Meek and Hayden in 1862 from exposures along Missouri River near the mouth of Niobrara River in Knox County, Nebraska. In Kansas, rocks belonging to the Niobrara have long attracted attention because they form some of the more spectacular landscape features of western Kansas, such as Castle Rock (Pl. 4A ...Although the Niobrara National Scenic River is comprised mostly of private land, the Fort Niobrara National Wildlife Refuge and Niobrara Valley Preserve protect much of the area. ... The escarpment on the north side of the valley is a good place to view the lateral exposure of the Ash Hollow Formation (6-11 million years old). Below that is the ...Niobrara Formation (Upper Cretaceous) at surface, covers < 0.1 % of this area. White to dark-gray argillaceous chalk, marl, and shale. Weathers yellow to orange. Contains thin, laterally continuous bentonite beds, chalky carbonaceous shale, minor sand, and small concretions. Thickness up to 150 ft (46 m).The results were confirmed by the tracer data analyses, which indicate strong inter-well and inter-formation communication. For instance, when gas was injected into a Niobrara well, the oil production of a nearby Codell well was more enhanced than its neighboring Niobrara wells. The modeled gas injection EOR yielded 2% - 4% incremental oil ...The results were confirmed by the tracer data analyses, which indicate strong inter-well and inter-formation communication. For instance, when gas was injected into a Niobrara well, the oil production of a nearby Codell well was more enhanced than its neighboring Niobrara wells. The modeled gas injection EOR yielded 2% - 4% incremental oil ...These tributaries flow over the Rosebud Formation. Some waterfalls drop into the Niobrara, while others are found in spring-fed streams. The Ogallala Aquifer, a fragile, vast underground reservoir, is partially recharged by rainwater and snowmelt. Through springs, seeps, and waterfalls it provides most of the water to the Niobrara. Biological ...The productive Niobrara Formation in the basin contains calcareous shale, shaley limestone, and marls as reservoir rocks. According the USGS, reservoir zones in the Niobrara range from 50 to 200 feet in thickness, however, there have been wells drilled in the basin where the zones were near 400 feet. The most prolific benches composed of these ...The Niobrara Formation of the W Interior consists of 100-250m of interbedded chalks and calcareous shales. The formation is divided into 2 members: 1) a thin, basal, dominantly chalk-bearing ...2.22 Niobrara Shale. The Niobrara shale formation (Denver-Julesburg Basin, Colorado) is a shale rock formation located in Northeast Colorado, Northwest Kansas, Southwest Nebraska, and Southeast Wyoming. Oil and natural gas can be found deep below the earth's surface at depths of 3000–14,000. Companies drill these wells vertically and even ...Operators are targeting the Niobrara A, B, C benches and Codell formation, which are mostly in the DJ. Much of Colorado oil and gas development, including in the prolific Wattenberg field, has been just north of Denver in Weld County, but the area north of there has been drawing increased interest in recent years.The Niobrara Formation /ˌnaɪ.əˈbrærə/, also called the Niobrara Chalk, is a geologic formation in North America that was deposited between 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late Cretaceous. It is composed of two structural units, the Smoky … See moreThe Niobrara Formation has been drilled in the liquids window along the western and northern margins of the Piceance Basin from 2014 to 2018, with longer lateral lengths and higher proppant ...The targets are the Late Cretaceous Steele Shale and the Niobrara Formation, having a combined thickness of 3700-4900 ft. The productive intervals have a depth ranging from 8500 to 13,000 ft ...The Niobrara Formation within the U.S. Geological Survey (USGS) #1 Portland core was sampled at 0.5 m resolution at the USGS Core Research Center in Denver, Colorado (Figure 1). The Portland core was drilled and continuously cored in the Cañon City Basin, Colorado, where Cretaceous strata, including half of the Niobrara …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. This study will look into and compare the different methods of quantifying TOC from logs and how they ...Sonnenberg, S. A., 2016, Stratigraphic architecture of the Niobrara Formation, Wattenberg Field Area, Colorado: Presented at the Unconventional Resources Technology Conference, URTeC-2435024, doi: 10.15530/urtec-2016-URTeC 2435024. Crossref Google ScholarEstimated Ultimate Recoveries (EURs) were made for approximately 600 productive wells from the geopressured Niobrara Formation in the Denver-Julesburg (DJ), 520 wells, and Powder River, 80 wells, basins. EUR estimates were calculated using Drillinginfo's web based EUR calculator and all wells were normalized to a 9,000 foot horizontal length.The Niobrara shale formation is situated in northeastern Colorado and parts of adjacent Wyoming, Nebraska, and Kansas. Primarily an oil play, it is in the Denver-Julesburg Basin, which has long been a major oil and gas province.gas in the underlying Niobrara Formation. A configuration map of the Ardmore Bentonite Beds of the Pierre shows the major structural features of the area. Maps of thickness of the Pierre and of rocks above the Pierre summarize regional patterns of Niobrara burial depth. Niobrara burial depth is also summarized on a map of depth to the base of theHydrocarbon source rocks in Wattenberg are the Skull Creek Shale, Graneros Shale, Greenhorn Limestone, Carlile Formation, Niobrara Formation, and Sharon Springs Member of the Pierre Shale. Total source rock thickness in Wattenberg is 200 to 250 ft (>2 wt.% TOC). The source beds are dominantly Type II with some Type III kerogen present.Intellectual merit: The goal is to revise the Cretaceous time scale using new 40 Ar/ 39 Ar and U-Pb dates that anchor astronomical time scales from the Western Interior basin. New 40 Ar/ 39 Ar dates (n=34) have been acquired from Albian to Campanian representing 1000’s of sanidine dates. Campanian U-Pb zircon dates, the first for the Late Cretaceous, are from …The Fort Hays limestone is the lower member of the Niobrara formation (Moore, Frye, and Jewett, 1944, p. 152) of Cretaceous age. The Fort Hays member is recognized in the field primarily by its thick massive beds and small amount of shale. Chalky shale is the major constituent of the overlying Smoky Hill chalk.The Niobrara Formation in the Southern Powder River Basin, Wyoming: An Emerging Giant Continuous Petroleum Accumulation. 18URTC. New Reserves in an Old Field, the Niobrara Resource Play in the Wattenberg Field, Denver Basin, Colorado. 13URTC. Mineralogy Derived Brittleness from the Qemscan: Niobrara Case Study.The age estimate for the base of the Coniacian derived from an astrochronologic framework of the Niobrara Formation anchored with radioisotopic data (40Ar/39Ar and U-Pb) from the Kevin–Sunburst Dome area of Montana is 89.75 ± 0.38 Ma (after Sageman et al., 2014). Correlation EventsNiobrara Limestone, division of rocks in the central United States dating to the Late Cretaceous Period, which ended some 65.5 million years ago.Aug 17, 1992 · The Niobrara formation in the central Rocky Mountain region has been written about at length by several authors, most recently concerning Silo field near Cheyenne, Wyo. The Niobrara has proven an enigma to many explorationists, because while the promise is great (individual wells with cumulative production in excess of 1 million bbl), many ... Title: Sequence stratigraphy of the Niobrara Formation: implications for age-constraining tectonic events and stratigraphic complexities in the Denver-Julesburg Basin, United States Author (s): Drake, W.R., and Hawkins, S.J. Publishing Organization: American Association of Petroleum Geologists Series and Number: Bulletin v. 105, n. 7, p. 1293The Niobrara Shale is a shale rock formation located in Northeast Colorado, Northwest Kansas, Southwest Nebraska, and Southeast Wyoming. Oil and Natural Gas can be found deep below the earth's surface at depths of 3,000 - 14,000 feet. Notes. The Niobrara Formation , also called the Niobrara Chalk, is a geologic formation in North America that ...consistent with gas produced from the Niobrara formation in the core parts of the Wattenberg Field and DJ Basin. This result is a considerable improvement on the previous well drilled, the J.W. Powell which recorded an IP of 220 BOE/day. Especially encouraging was the high oil component in the Vespucci well which will deliver a solidboost to ...Benton formation. Recognized in subsurface of Williston basin, northwestern and central South Dakota. Conformably underlies Dakota sandstone and conformably overlies Niobrara formation. Correlates with (ascending) Graneros, Greenhorn, and Carlile formations of Ward County, north-central North Dakota.20 sept. 2013 ... ... Niobrara formation, which is composed of chalk benches with intervening marls. Because both permeability and porosity in the Niobrara chalk ...Median dissolved solids, Se, and U concentrations in Niobrara-influenced inflows were 288%, 863%, and 155%, respectively, greater than median concentrations where the Niobrara Formation was absent. Identification of the Niobrara Formation as a disproportionate source for dissolved solids, Se, and U will allow for more targeted studies and ...1. The Niobrara River is an outstanding example of a largely free-flowing Great Plains river. 2. The Niobrara River Valley contains a large concentration of scenic river cliffs and waterfalls that are rare on the Great Plains. 3. The high bluffs along the river provide scenic vistas of the Niobrara River Valley and its many plant communities.The formation also crops out along Sappa Creek, in Decatur and Norton counties, and along Prairie Dog Creek in Norton and Phillips counties, as southwestward extensions of the Nebraska Niobrara outcrop (Fig. 1). Altogether, the Niobrara crops out in parts of 23 Kansas counties (Fig. 1).Stage boundary ages are estimated via integration of new radioisotopic data with the floating astrochronology for the Niobrara Formation. The ages are determined by anchoring the long eccentricity bandpass from spectral analysis of the Nio brara Formation to radioisotopic ages with the lowest uncertainty proximal to the boundary, and adding or ...Sections of the Upper Cretaceous (Coniacian to Campanian) Niobrara Formation in two cores from Kansas and Colorado, the Amoco Rebecca Bounds and USGS Portland 1, respectively, were examined by ...The Mancos-Niobrara formation in western Colorado is estimated by the USGS to contain 66 trillion cubic feet of natural gas. Successfully developing this asset depends on understanding the geology, geomechanics, the impact of fracture length and height, conductivity, fracture spacing, and well spacing on estimated ultimate recovery.People have long known that the Niobrara is thick, rich in organics and thermally mature. Oil has flowed from the Niobrara since the dawn of the industry: Florence Field, near Canon City, Colorado, was discovered in 1876 near an oil seep. Florence produces from fractured Pierre shale, and part of the Niobrara formation. Oil pioneers also found the Niobrara productiveThe chalk beds in the Niobrara Formation (targets of horizontal drilling) are adjacent to organic-rich marl beds. Mudrock and tight oil plays have been ... Bakken, Three Forks, Niobrara, Eagle Ford, Austin Chalk, Vaca Muerta, parts of the Barnett, etc. New halo reservoir plays include the Parkman, Teapot, Turner, SussexOsha plant identification, Que significa organizaciones sin fines de lucro, Ugly haircuts, Is an mou a contract, Ku players in the nfl, Great.clip, Gatlinburg 2023, Cole haan zerogrand lined laser wingtip oxford, Group born from 2010 to 25 informally crossword, Evaluation work, Saturn trine ascendant synastry, Jackson hewitt texas, Best outdoor basketball courts near me, Examples of community leaders

The Niobrara Formation in the Denver Basin, USA, is a unique example of a chalk δ 18 O record that deviates from the global trend for deeply buried chalks in petroliferous basins (Figure 1).Multiple workers have documented δ 18 O values of Niobrara calcite that are significantly lower than other chalk formations worldwide (Hefton, 2015; Pollastro & Scholle, 1986; Scholle, 1977).. Looked for facts in figures nyt crossword

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Figure 3.7. Rose Diagram Plot for horizon "Top Niobrara." A near random orientation for faults in this tier is observed, however a slight preference for the NE-SW orientation is evident. This might be caused by a slight preference towards the thinning direction of Niobrara or perhaps a slight structural dip during formation.@article{osti_6935706, title = {Regional analysis of rhythmic bedding in the Fort Hays limestone member, Niobrara Formation (Upper Cretaceous), US western interior}, author = {Laferriere, A P}, abstractNote = {Results of a regional stratigraphic investigation of the rhythmically bedded Fort Hays limestone member of Kansas, Colorado, and New Mexico indicate at least two levels of cyclicity.Is the upper member of Niobrara Formation above Fort Hays Limestone Member of Niobrara and beneath Pierre Shale. Divided in the Pueblo area, Pueblo Co, CO in Denver basin, into 7 units described in ascending order: 1) shale and limestone unit is a 20 ft thick gray calcareous shale separated into 18 layers by gray shaly limestone, has INOCERAMUS DEFORMIS, is of early and middle Coniacian age; 2 ...A recent U.S. Geological Survey (USGS) oil and gas assessment of the Powder River Basin , Wyoming and Montana, identified the Upper Cretaceous Mowry Shale and Niobrara Formation as the primary hydrocarbon sources for Cretaceous conventional and unconventional reservoirs.A JPG file is one of the most common compressed image file types and is often created by digital cameras. At times, you may need to convert a JPG image to another type of format. You can do this several ways. Read on to find out how.The Niobrara Formation is an important source and reservoir for biogenic and thermogenic petroleum in eastern Colorado. The Niobrara and the underlying Codell Sandstone Member of the Carlile Shale contribute 67% of the total oil and 34% of the total gas production in the Wattenberg field in the west-central part of the Denver Basin ...Marked cycles in color, carbonate and organic-carbon concentrations, geophysical log characteristics (for example, gamma-ray and sonic velocity), degree of bioturbation, and composition of benthic faunal assemblages characterize the pelagic carbonate sequences of the Upper Cretaceous Niobrara Formation in the Cretaceous Western Interior Seaway ofNorth America and seem to be attributable to ...Wyoming Oil and Gas Conservation Commission data shows that Niobrara oil production increased from 365,000 barrels in 2010 to 3.5 million barrels last year, seventh-most of any formation in the ...A recent U.S. Geological Survey (USGS) oil and gas assessment of the Powder River Basin , Wyoming and Montana, identified the Upper Cretaceous Mowry Shale and Niobrara Formation as the primary hydrocarbon sources for Cretaceous conventional and unconventional reservoirs. Cumulative Mowry-sourced petroleum production is about 1.2 BBO (billion barrels of oil) and 2.2 TCFG (trillion cubic feet of gasSeismic reservoir characterization of the Najmah Formation, Raudhatain Field, North Kuwait: Download: 2017: Alfataierge, Ahmed: MS: 3D Modeling and characterization of hydraulic fracture efficiency integrated with 4D/9C time-lapse seismic interpretations in the Niobrara Formation, Wattenberg Field, Denver Basin: Download: 2017: Avila Vizuett ...Niobrara Formation . The Niobrara Formation (often called the Niobrara Chalk) was deposited during the Late Cretaceous about 80-88 million years ago. This unit is a chalk because it consists mostly of ancient marine plankton. Other marine fossils, including shells and fish bones also have been found in the Niobrara Formation. May 1, 2020 · The productive Niobrara Formation in the basin contains calcareous shale, shaley limestone, and marls as reservoir rocks. According the USGS, reservoir zones in the Niobrara range from 50 to 200 feet in thickness, however, there have been wells drilled in the basin where the zones were near 400 feet. It has been found that the formation stresses on both sides of fractured result in high penetration of proppant in the fracture surfaces, although proppant remains un-deformed. ... Prasad M. Fracturing fluid effects on Young’s modulus and embedment in the Niobrara formation. In: SPE Annual Technical Conference and Exhibition. Amsterdam, …The Niobrara Formation in the Denver-Julesburg Basin is a self-sourced resource play producing oil and natural gas from low permeability chalks. Key reservoir lithologies consist of chalk, chalky marl and marl. These lithologies contain flattened chalk fecal pellets which play a significant role in providing porosity. Integration of ...The Niobrara Formation produces commercial quantities of oil from fractures in several places in the Denver basin. The Niobrara in this basin is an oil-prone, mature source rock having as much as 3.4% TOC, and has been in the generating window since early Eocene. This implies that hydrocarbon generation from the Niobrara is partly ...Abstract The Late Cretaceous (89-82 Ma) Niobrara Formation is the primary target for unconventional horizontal well activity in the Denver Basin. With an abundance of horizontal activity, the question of well-length scale lateral heterogeneity becomes paramount addressing steering practices, completion, and ultimately well performance. We have incorporated detailed core description, high ...The vast majority of rare earth element (REE) deposits are known to form at high temperatures in association with carbonatitic and peralkaline magmatism (e.g., Migdisov et al., 2016).However, lesser-known hydrothermal deposits of heavy REE (HREE)–enriched xenotime (YPO 4) also occur within sedimentary basins (e.g., Rabiei et …These tributaries flow over the Rosebud Formation. Some waterfalls drop into the Niobrara, while others are found in spring-fed streams. The Ogallala Aquifer, a fragile, vast underground reservoir, is partially recharged by rainwater and snowmelt. Through springs, seeps, and waterfalls it provides most of the water to the Niobrara. Biological ...The Silo field is located in the northern part of the Denver basin. Production is from the fractured Niobrara Formation at depths ranging from 7,600 to 8,500 ft (2,318 to 2,593 m). Cumulative production from 40 vertical wells at Silo is in excess of 1.3 million bbl of oil. Two wells have produced 437,000 bbl of oil.Imaging of Niobrara Formation and Mowry Shale samples from a range of thermal maturities provided observations and data on pore systems, organic matter (OM) types and associations with mineralogy and fabric, wettability, and microporosity associated with both diagenetic and detrital clays. Imaging techniques included scanning electron microscopy, organic petrography and correlative scanning ...from the Niobrara Formation of Kansas and the Pierre Shale of Wyoming: American Museum Novitates v. 2434, p. 1-29 ___ ,1976, Enchodus (feleostei: Enchodontidae) from theThe Smoky Hill Chalk Member of the Niobrara Chalk formation is a Cretaceous conservation Lagerstätte, or fossil rich geological formation, known primarily for its exceptionally well-preserved marine reptiles. It outcrops in parts of northwest Kansas, its most famous localities for fossils, and in southeastern Nebraska.Coprolites from the Niobrara Formation of Kansas. A Coprolite with scaphitid inclusions; K1NP 25870. B. Associated coprolites containing rachis fragments of Tusoteuthis longa; K1NP 65095.Explore this photo album by James St. John on Flickr! Pseudoperna congesta fossil osyters encrusting a Platyceramus platinus inoceramid bivalve shell (Smoky Hill Chalk Member, Niobrara Formation, Upper Cretaceous; Castle Rock chalk badlands, south of Quinter, Kansas, USA) 1 by James St. JohnThe Niobrara play in the Powder River Basin (PRB) and Trabing Field reflects a continuous-type accumulation with structural deformation and complex stratigraphy reflected at all scales. The field was previously studied in order to understand the petroleum potential of the Frontier Formation. The work done prior to this study have failed to focus on understanding the field-scale structural and ...Title: Sequence stratigraphy of the Niobrara Formation: implications for age-constraining tectonic events and stratigraphic complexities in the Denver-Julesburg Basin, United States Author (s): Drake, W.R., and Hawkins, S.J. Publishing Organization: American Association of Petroleum Geologists Series and Number: Bulletin v. 105, n. 7, p. 1293Estimated Ultimate Recoveries (EURs) were made for approximately 600 productive wells from the geopressured Niobrara Formation in the Denver-Julesburg (DJ), 520 wells, and Powder River, 80 wells, basins. EUR estimates were calculated using Drillinginfo's web based EUR calculator and all wells were normalized to a 9,000 foot horizontal length.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, Turner, Niobrara, Sussex, Shannon, Parkman, Teapot, and Teckla, and Paleocene and Eocene Fort Union and Wasatch ...Niobrara Formation (1) Senonian (2) Turonian (2) Vivian Formation (1) Jurassic ... Cape Phillips Formation (1) Ordovician Lower Ordovician Saint George Group ...The company's 2013 drilling plan targets the B bench of the Niobrara formation and is primarily focused on horizontal development drilling. Pad drilling was initiated by the company in the second half of 2012 with three four-well pads. The average vertical depth drilled was approximately 1,951 m (6,400 ft) plus a 1,219-m (4,000-ft) lateral ...Xiphactinus audax 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late Cretaceous Niobrara Chalk Formation, ...Summary. Low-temperature hydrous pyrolysis (LTHP) at 300°C (572°F) for 24 h released retained oils from 12- to 20-mesh-size samples of mature Niobrara marly chalk and marlstone cores. The released oil accumulated on the water surface of the reactor, and is compositionally similar to oil produced from the same well. The quantities of oil released from the marly chalk and marlstone by LTHP are ...The Niobrara play in the Powder River Basin (PRB) and Trabing Field reflects a continuous-type accumulation with structural deformation and complex stratigraphy reflected at all scales. The field was previously studied in order to understand the petroleum potential of the Frontier Formation. The work done prior to this study have failed to focus on understanding the field-scale structural and ...Feb 23, 2017 · It is clear that the remarkably pronounced approximately 1.2-Myr rhythm in the primary stratigraphy of the Niobrara Formation is a consequence of the reinforcement of a 1.2-Myr obliquity forcing ... Formation: Niobrara Period(Early): Cretaceous. FHSM VP-18977 Niobrarasaurus coleii (Mehl, 1936) Formation: Niobrara Period(Early): Cretaceous. FHSM VP-19363 Chondrichthyes (Huxley, 1880) Formation: Niobrara Period(Early): Cretaceous. FHSM VP-19521 Ichthyodectidae (Crook, 1892)Pteranodon (/ t ə ˈ r æ n ə d ɒ n /); from Ancient Greek πτερόν (pteron 'wing') and ἀνόδων (anodon 'toothless') is a genus of pterosaur that included some of the largest known flying reptiles, with P. longiceps having a wingspan of over 6 m (20 ft). They lived during the late Cretaceous geological period of North America in present-day Kansas, Nebraska, Wyoming, South Dakota ...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, Turner, Niobrara, Sussex, Shannon, Parkman, Teapot, and Teckla, and Paleocene and Eocene Fort Union and Wasatch ...The stratigraphic and paleogeographic distribution of the suspension-feeding pachycormiform fish Bonnerichthys is reviewed. Fossils attributable to this genus are known from the Western Interior Seaway (Niobrara Formation of Kansas, Sharon Springs Formation of Kansas, Nebraska, and North Dakota, DeGrey Formation of South …The Cretaceous Niobrara Formation is one of the latest unconventional exploration targets in North America. In this paper, an overall Type-II marine organofacies with some variability is present within a core which consists of alternating marls and chalks, covering a maturity range of 0.8–1.0 %Rc (calculated vitrinite reflectance).The coiled tubing (CT) rig designed, built and operated by Advanced Drilling Technologies (ADT), was documented in its performance by GTI staff in the course of drilling wells ranging in depth from 500 to nearly 3,000 feet. Access to well sites in the Niobrara for documenting CT rig performance was provided by Rosewood Resources of Arlington, VA.The Niobrara shale formation (Denver-Julesburg Basin, Colorado) is a shale rock formation located in Northeast Colorado. Northwest Kansas, Southwest Nebraska, and Southeast Wyoming. Oil and natural gas can be found deep below the surface of the Earth at depths of three thousand to fourteen thousand.The Niobrara Formation in the studied cores appears to be hiatus-free and therefore provides a continuous record of rhythmic deposition for astronomical timescale development. The relationship between carbonate content and sedimentation rate throughout the Niobrara Formation indicates that the decameter-scale oscillations of chalk and marl are ...Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 534 million barrels of oil and 939 billion cubic feet of gas in the Niobrara interval of the Cody Shale in the Bighorn Basin Province, Wyoming and Montana.Specifically, Ca (%), Si/Al, Mo (ppm), and Mn (ppm) define sequence stratigraphic surfaces that correspond to those from previous workers. Fourth order cycles in the Greenhorn cycle (inclusive of both the Greenhorn and Carlile formations) are notably more frequent and of shorter duration than those of the Niobrara Formation.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 act as source rocks and represent periods of anoxia and organic preservation. The calcareous, carbonate-rich ...The Niobrara formation is an increasingly active exploration target in the Denver-Julesburg basin that contains both reservoir rock and source rock. The reservoir rock consists of up to four laterally continuous chalk benches and the source rock is comprised of three organic-rich interbedded shales. Both permeability and porosity in the Niobrara chalk are relatively low and production is ...A cervical vertebra of the large, pelagic pterodactyloid pterosaur Pteranodon sp. from the Late Cretaceous Niobrara Formation of Kansas, USA is significant for its association with a tooth from the large lamniform shark, Cretoxyrhina mantelli. Though the tooth does not pierce the vertebral periosteum, the intimate association of the fossils—in which the tooth is wedged below the left ...Nov 1, 2014 · This study presents a regional stratigraphic framework and paleoenvironmental reconstruction of the Niobrara Formation in northern Colorado (Fig. 1) based upon multidisciplinary biostratigraphic and petrographic data. In doing so, this analysis provides an integrated biofacies/lithofacies model of sediment deposition and regional ... operation of the Niobrara Formation. B. Provide that the Commission’s pooling order is made effective as of the earlier of the date of this Application, or the date that any of the costs specified in § 34-60-116(7)(b), C.R.S. are first incurred for the drilling of the Wells in the Niobrara Formation on the Application Lands.The ages are determined by anchoring the long eccentricity bandpass from spectral analysis of the Niobrara Formation to radioisotopic ages with the lowest uncertainty proximal to the boundary, and adding or subtracting time by parsing the 405 k.y. cycles. The new stage boundary age determinations are: 89.75 ± 0.38 Ma for the Turonian-Coniacian ...The Cretaceous Niobrara Formation is one of the latest unconventional exploration targets in North America. In this paper, an overall Type-II marine organofacies with some variability is present within a core which consists of alternating marls and chalks, covering a maturity range of 0.8–1.0 %Rc (calculated vitrinite reflectance).The Niobrara Formation (Upper Cretaceous) in the northern Great Plains is being studied by the U.S. Geological Survey because it includes potential low-permeability reservoirs for natural gas. Subsurface investi­ gations of the Niobrara indicate that three major chalk tongues are found within the unit.The Cretaceous Niobrara Formation and Codell Member of the Carlile Formation are the top producing unconventional zones in the Denver-Julesburg Basin. The basin encompasses eastern and northeastern Colorado, southeastern Wyoming, southwestern Nebraska, and far western Kansas. The Codell member of the Carlile Formation is a tight sandstone 4 to ...The Niobrara Formation has been drilled in the liquids window along the western and northern margins of the Piceance Basin from 2014 to 2018, with longer lateral lengths and higher proppant ...The Cretaceous Niobrara Formation is one of the latest unconventional exploration targets in North America. In this paper, an overall Type-II marine organofacies with some variability is present ...The Kansas Niobrara Cretaceous ... At several places in the upper part of the formation there occur thin seams filled with fragments of bones, scales, teeth and similar remains much broken up and comminuted. No coal, of any character has ever been discovered in the formation, and from the nature of the beds can not be expected. ...A Ptychodus shark tooth from the Niobrara Formation in Cretaceous deposits of Kansas, United States.To format a government or military situation report, known as a sitrep, follow a template that details what information goes on each line of the report. You need a computer with Internet access. Expect the process to take about an hour.For the younger Niobrara Formation, a similar split between oxic chalk and anoxic marls to mudstones was noted by a factor analysis of elemental geochemical data carried out by Dean and Arthur (1998). The interpretation of CCA reflecting a gradient between pelagic vs. terrigenous sediments is supported by positive correlations with …Rouleaux formation happens when either fibrinogens or globulins are present at high levels in the blood, although at times it may be caused by incorrect blood smear preparation when blood is placed on a slide for microscopic examination.Formation No. 3--Niobrara; Formation No. 2--Fort Benton; Formation No. 1--Dakota; Cretaceous rocks were mapped in Kansas as early as 1857 (Hayden) but detailed study proceeded slowly as evident in a remark by Swallow (1866, p. 10), in his first annual report as State Geologist of Kansas, that the "...In addition to the Niobrara Formation, other possible source rocks in the Denver Basin include the Cretaceous Belle Fourche (Graneros), Mowry, and Carlile shales, as well as the Greenhorn Formation. Oil generation in these formations began during the Laramide orogeny and continued through the Miocene (Higley and Cox, 2007). A recent U.S. Geological Survey (USGS) oil and gas assessment of the Powder River Basin , Wyoming and Montana, identified the Upper Cretaceous Mowry Shale and Niobrara Formation as the primary hydrocarbon sources for Cretaceous conventional and unconventional reservoirs.10.1190/urtec2013-015 Valuing Seismic at the Drilling Program Level for Sweet Spot Identification in Unconventional Resource 10.1190/urtec2013-016 Geologic Controls on Oil Production from the Niobrara Formation, Silo Field, Laramie County, Wyoming 10.1190/urtec2013-017 Niobrara Sweet Spots, Basement Geology, and Sea …Gas, oil, and water production data were compiled from selected wells in two tight gas reservoirs-the Codell-Niobrara interval, comprised of the Codell Sandstone Member of the Carlile Shale and the Niobrara Formation; and the Dakota J interval, comprised mostly of the Muddy (J) Sandstone of the Dakota Group; both intervals are of Cretaceous age-in the Wattenberg field in the Denver Basin of ...The Niobrara Formation is the fourth largest oil-producing shale play in the continental United States, with production of around 700,000 barrels of oil and 13 million cubic feet of natural gas ...mesozoic periods in order. Pangaea. What supercontinent existed at the start of the Mesozoic? 1. Modern oceans and continents begin to form and pangaea breaks up. 2. last greenhouse interval of earth history. 3. many of earth's modern mountains and resources form during the mesozoic. Why is the Mesozoic an important time interval in Earth history?The Niobrara Formation of the Western Interior consists of 100 to 250 m of interbedded chalks and calcareous shales. The formation is divided into two members: (1) a thin, basal, dominantly chalk-bearing sequence, the Fort Hays Limestone Member, and (2) an upper, thick, calcareous shale unit, the Smoky Hill Chalk Member. ...NG-4 NIOBRARA FORMATION, UNDERLYING CERTAIN ) LANDS IN YUMA COUNTY, COLORADO AS A ) ORDER NO. NG-4-2 "TIGHT FORMATION", PURSUANT TO REGULATIONS ) NGPA Section 107(b) OF THE FEDERAL ENERGY REGULATORY COMMISSION ) FERC Regulation 271.705 The Colorado Oil and Gas Conservation Commission is the designated jurisdictional agency under subpart (g) of ...The Niobrara Formation of the W Interior consists of 100-250m of interbedded chalks and calcareous shales. The formation is divided into 2 members: 1) a thin, basal, dominantly chalk-bearing ...7 jan. 2013 ... The organic-rich formation consists mainly of shale and carbonate layers from a former marine environment. Although it's typically referred to ...The Niobrara Formation is a significant source of dissolved solids, Se and a moderate source of U along the studied reach of the Arkansas River. They revealed that during both the irrigation and non-irrigation seasons, concentrations of these constituents were substantially greater in Niobrara-influenced surface-water inflows.Hierosaurus (meaning "sacred lizard") is an extinct genus of nodosaurid ankylosaur which lived during the Late Cretaceous 87 to 82 million years ago. Its fossils were found in the Smoky Hill Chalk Member of the Niobrara Formation, in western Kansas, which would have been near the middle of the Western Interior Sea during the Late Cretaceous.7 jan. 2013 ... The organic-rich formation consists mainly of shale and carbonate layers from a former marine environment. Although it's typically referred to ...Smagala T. M., Brown C. A. and Nydegger G. L. (1984) Log-derived indicator of thermal maturity, Niobrara Formation, Denver Basin, Colorado, NebrAsk~ Wyoming. In Hydrocarbon Source Rocks of the Greater Rocky Moun- tain Region (Edited by Woodward J., Meissner F. J. and Petrophysical source rock evaluation 119 Clayton J. L.), pp. 355-364.Feb 20, 2015 · In southern New Mexico the Niobrara equivalent is assigned to the Mesa Verde Formation (or Group) (Cobban and Reeside, 1952, chart lOb). In western Colorado the Niobrara passes into calcareous beds of the Mancos Shale (Fisher and others, 1960) and in east-central Utah is represented by the Bluegate Shale Tongue of the Mancos (McGookey and ... The entire formation could produce up to 1 million barrels a day. ... Niobrara boosts interest in local oil development. Oct 9, 2010 Oct 9, 2010; Comments; Facebook; Twitter;The Niobrara River drains nearly 12,000 square miles and cuts through four rock formations. These formations provide the underground "plumbing" that supplies the numerous springs and waterwalls visible along or near the river. ... The topmost layer of rock is the Ash Hollow formation, a grayish cap-rock best seen on hills north of the river ...10. Belle Fourche Shale, Greenhorn Formation, Carlile Shale, and Niobrara Formation, and lower part of Pierre Shale, northeastern Niobrara County T25 11. Frontier Formation and Sage Breaks Member of Cody Shale, southeastern Natrona County T27 12. Niobrara Member and part of Gammon Member of Cody Shale, northern Big Horn County T39 13.Niobrara Shale Overview. The Niobrara shale formation is situated in northeastern Colorado and parts of adjacent Wyoming, Nebraska, and Kansas. Primarily an oil play, it is in the Denver-Julesburg Basin, which has long been a major oil and gas province. Technological advances in horizontal drilling and hydraulic fracturing in the last decade ...Niobrara Formation (Upper Cretaceous) at surface, covers < 0.1 % of this area. White to dark-gray argillaceous chalk, marl, and shale. Weathers yellow to orange. Contains thin, laterally continuous bentonite beds, chalky carbonaceous shale, minor sand, and small concretions. Thickness up to 150 ft (46 m).. 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