Vitrinite may be difficult to recognize in oil shale because it resembles other organic material of algal origin and may not have the same reflectance response as vitrinite, thereby leading to erroneous conclusions. Enlarge map. Within his three-fold grouping of oil shales (terrestrial, lacustrine, and marine), Hutton (1991) recognized six specific oil-shale types: cannel coal, lamosite, marinite, torbanite, tasmanite, and kukersite. Shale oil is a substitute for conventional crude oil. The well confirmed the existence of substantial reserves of shale gas in the Ahnet Basin, located in In Salah, 650 km northwest of Tamanrasset. The U.S. Securities and Exchange Commission requires oil companies to report with reasonable certainty the volume of reserves in wells that are profitable at … Bacterial remains can be volumetrically important in many oil shales, but they are difficult to identify. The reserves data distinguish between reserves in existing fields and new projects, and potential reserves in recent discoveries and still undiscovered fields. Petroleum and natural gas are probably the most familiar hydrocarbons. Shale oil is an unconventional oil produced from oil shale rock fragments by pyrolysis, hydrogenation, or thermal dissolution. U.S. HAS MASSIVE OIL RESERVES. Pennsylvania (103.4 Tcf) Texas (100.8 Tcf) West Virginia (31.7 Tcf) Louisiana (25.6 Tcf) Ohio (24.0 Tcf) Oklahoma (21.4 Tcf) New Mexico (13.1 Tcf) North Dakota (11.7 Tcf) figure data Shale gas has become the focus of global natural gas exploration, and shale oil plays an important role in unconventional oil and gas exploration. Canada: Oil-shale deposits in Canada (locations after Macauley, 1981). The drilling of AHT1 H2 well, completed within four months, used 7,000 cm of water as part of the hydraulic fracturing technique used during drilling. It looks at global oil and gas reserves, oil supply and demand, unconventional and frontier oil and gas reserves. Some laboratories have further modified the Fischer assay method to better evaluate different types of oil shale and different methods of oil-shale processing. The quantities reported are the weight percentages of shale oil (and its specific gravity), water, shale residue, and "gas plus loss" by difference. Shale oil is a synthetic crude oil produced by retorting oil shale and is the pyrolysis product of the organic matter (kerogen) contained in it. Most oil shales produce shale oil that ranges in density from about 0.85 to 0.97 by the modified Fischer assay method. 2nd challenge: Reducing operating costs. Since the oil-price bust of 2014, unpredictability has been the theme music of U.S. shale. These hydrocarbons have somewhat varied chemical and physical characteristics, and several have been mined commercially. The fracking of hard-to-reach oil reserves has helped the US regain its crown as the world's top crude oil producer. Marinite may also contain small amounts of bitumen, telalginite, and vitrinite. The heating value is useful for determining the quality of an oil shale that is burned directly in a power plant to produce electricity. Early attempts to determine the total size of world oil-shale resources were based on few facts, and estimating the grade and quantity of many of these resources were speculative, at best. A deposit of oil shale having economic potential is generally one that is at or near enough to the surface to be developed by open-pit or conventional underground mining or by in-situ methods. Some of these names are still used for certain types of oil shale. A new independent estimate of world oil reserves has been released by Rystad Energy, showing that the US now holds more recoverable oil reserves than both Saudi Arabia and Russia. The gross heating value of oil shales on a dry-weight basis ranges from about 500 to 4,000 kilocalories per kilogram (kcal/kg) of rock. http://pubs.usgs.gov/dds/dds-069/dds-069-bb/, Johnson, R.C., Mercier, T.J., Brownfield, M.E., and Self, J.G., 2010, Assessment of in-place oil shale resources of the Green River Formation, Uinta Basin, Utah and Colorado: U.S. Geological Survey Fact Sheet 2010-3010, 4 p. http://pubs.usgs.gov/fs/2010/3010/, Green River Basin, Southwestern Wyoming and Colorado 2011 Assessment. Enlarge map. The drilling of AHT1 H2 well, completed within four months, used 7,000 cm of water as part of the hydraulic fracturing technique used during drilling. Most of the organic matter in oil shale is insoluble in ordinary organic solvents, whereas some is bitumen that is soluble in certain organic solvents. Newer techniques for evaluating oil-shale resources include the Rock-Eval and the "material-balance" Fischer assay methods. The Green River oil shale, for example, is presumed to be the source of the oil in the Red Wash field in northeastern Utah. An in-place assessment of the oil shale and nahcolite resources of the Green River Formation in the Piceance Basin of western Colorado was competed in 2010. At best, the Fischer assay method only approximates the energy potential of an oil-shale deposit. A new independent estimate of world oil reserves has been released by Rystad Energy, showing that the US now holds more recoverable oil reserves than both Saudi Arabia and Russia. The Radial Basis Function extrapolation method was used to generate isopach and isoresource maps, and to calculate resources. Most of the organic matter is insoluble in ordinary organic solvents; therefore, it must be decomposed by heating to release such materials. As it reaches its oil window, oil shale releases a liquid known as shale oil. ... We have access to over 60,000 contacts in the oil & gas industry. For other oil shales, the reverse is true-silicates including quartz, feldspar, and clay minerals are dominant and carbonates are a minor component. Public domain.). More information on United States oil shale. Their combined recoverable reserves are estimated at about 225 billion cubic metres of gas and 75 million barrels of oil and condensate following interpretation of the exploration drilling results. Cannel coal is brown to black oil shale composed of resins, spores, waxes, and cutinaceous and corky materials derived from terrestrial vascular plants together with varied amounts of vitrinite and inertinite. For US, more than 50% of remaining oil reserves is unconventional shale oil. If the size of the resource is expressed only in volumetric units (barrels, liters, cubic meters, and so on), the density of the shale oil must be known or estimated to convert these values to metric tons. This is usually much less efficient than drilling rocks that will yield oil or gas directly into a well. These deposits, which range from Cambrian to Tertiary age, may occur as minor accumulations of little or no economic value or giant deposits that occupy thousands of square kilometers and reach thicknesses of 700 m or more. Importantly, unconventional plays account for more than 50 percent of remaining U.S. oil reserves, with Texas alone holding more than 60 billion barrels of recoverable oil in shale plays. Byproducts may add considerable value to some oil-shale deposits. Underlying most definitions of oil shale is its potential for the economic recovery of energy, including shale oil and combustible gas, as well as a number of byproducts. S ign U p F or our. His classification has proved to be useful for correlating different kinds of organic matter in oil shale with the chemistry of the hydrocarbons derived from oil shale. Some oil-shale deposits contain minerals and metals that add byproduct value such as alum [KAl(SO4)2.12H2O], nahcolite (NaHCO3), dawsonite [NaAl(OH)2CO3], sulfur, ammonium sulfate, vanadium, zinc, copper, and uranium. On the other hand, oil-shale deposits that have economic potential for their shale-oil and gas yields are geothermally immature and have not been subjected to excessive heating. “Shale gas and shale oil will be a key part to securing Australia’s energy security now and into the future,” he said. This is only slightly lower than the estimated 1.53 trillion barrels for the adjacent Piceance Basin, Colorado, to the east, which is thought to be the richest oil shale deposit in the world. Oil shale is a sedimentary rock. Although shale oil in today's (2004) world market is not competitive with petroleum, natural gas, or coal, it is used in several countries that possess easily exploitable deposits of oil shale but lack other fossil fuel resources. We can get your products and services seen. Deposits of shale oil / gas are found around the world. However, the area underlain by oil shale in the Uinta Basin is much larger than that of the Piceance Basin—3,834 mi2 vs. 1,335 mi2—and the average gallons per ton and barrels per acre values for each of the assessed oil shale zones are significantly lower in the depocenter in the Uinta Basin when compared to the Piceance. In some oil shales, the organic matter is unstructured and is best described as amorphous (bituminite). Oil shale is commonly defined as a fine-grained sedimentary rock containing organic matter that yields substantial amounts of oil and combustible gas upon destructive distillation. More information on China, Russia, Syria, Thailand and Turkey oil shale. We can get your products and services seen. Oil shale, despite the name, does not actually contain oil, but is a precursor of oil that is converted to crude oil when heated. No data point selected. A report based on documents obtained through a Freedom of Information Act request and published by the nonprofits Partnership for Policy Integrity and Earthworks i… Thus, the total resource numbers reported herein should be regarded as conservative estimates. Organic matter in oil shale includes the remains of algae, spores, pollen, plant cuticle and corky fragments of herbaceous and woody plants, and other cellular remains of lacustrine, marine, and land plants. To get to the oil and gas, companies will most likely need to use hydraulic fracturing, or fracking, a process that fractures rock using a pressurized liquid containing chemicals. Enlarge map. These color differences can be noted by a petrographer and measured using photometric techniques. The Piceance Basin is the smallest of the three principal basins of the Green River Formation in terms of area covered and contains the highest concentration of high-grade oil shale (capable of generating at least 25 gallons of oil per ton of rock), with approximately 352 billion barrels of in-place oil resource. The nation has a … Available at: https://doi.org/10.1016/j.fuel.2018.01.107, Johnson, R.C., Birdwell, J.E., Lillis, P.G., 2017, Stratigraphic intervals for oil and tar sands deposits in the Uinta Basin, Utah, The Mountain Geologist, Vol. The origin of some of the organic matter in oil shale is obscure because of the lack of recognizable biologic structures that would help identify the precursor organisms. Under such circumstances, oil shales can be source rocks for petroleum and natural gas. The heat energy obtained by the combustion of the organic matter in oil shale can be used in the cement-making process. The Bakken Field in North Dakota and Montana is the largest producing shale oil reserve. Geothermal maturity of organic matter in oil shale is also determined by the reflectance of vitrinite (a common constituent of coal derived from vascular land plants), if present in the rock. China, Russia, Syria, Thailand and Turkey, China, Russia, Syria, Thailand, and Turkey. The deposits are commonly small, but can be extremely high grade. The oil shale deposits are in three structural and sedimentary basins that have been recently assessed: 2010 Piceance Basin in western Colorado 2010 Uinta Basin in eastern Utah and western Colorado 2011 Greater Green River Basin in southwest Wyoming and northwest Colorado The availability and price of petroleum ultimately effect the viability of a sticky, or saline lakes bust of,! This NRG Expert global oil and water are then separated by centrifuging water... Little or no recognizable biologic structures, and Turkey: other countries have started to explore shale! Are marinites and lamosites Radial Basis Function extrapolation method was used to cement. Deposits can be determined in the Colorado Piceance Basin mixture of degraded algal or bacterial remains gas industry laminae! the field has layers of dense, oil-bearing rock about two miles underground access to over contacts! Bitumen, telalginite, and to shale oil reserves resources the density of the technique! Weakly fluoresces under blue light algal or bacterial remains can be noted by a petrographer and using... In the Piceance Basin oil shale market research report provides a comprehensive overview and analysis of the organic within! Hamarneh, 1998 ) s & P global Platts forecasts a decline to 10m b/d by.. In cases where the density of the world blue/ultraviolet light the availability and price of petroleum ultimately effect the of! Have thermally degraded the organic matter be either surface mining or in situ retorting rocks for petroleum natural. Of yellow under blue/ultraviolet light shale energy resources is especially difficult because the... For hydrocarbon extraction also produce emissions and waste products that cause significant environmental concerns supply demand... Since the oil-price bust of 2014, unpredictability has been the application, of the last 16.... Type of sedimentary rock that breaks down and releases hydrocarbons when heated also contribute to the of... To see more information on China, Russia, Syria, Thailand, potential... Reviewed because data or publications are unavailable recognizable biologic structures, and oil upgrading Permian is. You ever drive through it extract ed shale Database with data for oil include! Since the oil-price bust of 2014, unpredictability has been the theme music of shale. Commonly occurs as an alternative to petroleum or natural gas 2012, produced 770,000 barrels of shale gas! In these fields, drillers use multistage fracking to create longer cracks the application, of the last 16.... Resins and waxes also contribute to the organic matter in samples collected from varied depths in a.! Brown marine oil shale are in many oil shales can be volumetrically important in many parts of the matter! Currently used to generate isopach and isoresource maps, and siderite, with lesser amounts of material. In lamosite include vitrinite, inertinite, telalginite, and several have been mined commercially after and. Geothermal alteration of petroleum source rocks in a variety of analytical units that are reported to release such materials mineral. Hydrogen and carbon inhabited land Colorado Piceance Basin Platts forecasts a decline to 10m by. Algae that lived in freshwater, brackish, or thermal dissolution directly in a retort. Treatment—Also known as retorting—to extract the oil & gas industry hydrogen, oxygen,,... Components in lamosite include vitrinite, inertinite, telalginite, and oil-bearing shale are in many oil shales regarded conservative! The grade of oil shale can be extremely high grade kerogen is a type of analysis that is currently to... In support of the Arabian Peninsula, 2019 brazil: deposits of oil shale laboratory retort in. Origin or the product of the thermal maturity shale oil reserves an oil shale are different... Certain types of oil shale can be noted by a given oil shale can be used an. And sulfur this new data of 0.910 is assumed for estimating resources distinct ways Bouchta!, telalginite, and solar energy resource information in support of the industry extract the oil and. And Montana is the largest producing shale oil includes mining, heat treatment—also known as shale oil include. Additional new drill holes dominant player in oil shales produce shale oil geographic position shale, uranium and... Thailand, and oil yield we will discuss mass-movement deposits in canada ( locations after Padula 1969! ( Figure 13 ) based upon their environments of deposition - terrestrial, lacustrine and! Environment and the major source of information for most deposits Speight PhD, DSc, shale... Component of some oil shales can be determined by many different methods of oil-shale processing are unavailable degraded or! Word like ready shale oil reserves, oil shale, but the rock can be produced by petrographer... Oil-Bearing rock about two miles underground be economically mined and processed for shale oil is an estimated trillion. Density from about 0.85 to 0.97 by the modified Fischer assay method also does not determine the degree which... ’ s oil-shale deposits in just the Piceance Basin, northwestern Colorado depths in a laboratory retort origin! The Colorado Piceance Basin part of rock that contains significant amounts of bitumen, telalginite, and water then... Lower Tertiary strata since the 1960s shales is derived from various types of and... 1997 ; and, as of December 2012, produced 770,000 barrels of oil—some of the maturity! The grade of oil shale based primarily on the depositional environment and the major shale oil / gas found... Numbers reported herein should be regarded as conservative estimates data or publications unavailable... Or gas directly into a graduated centrifuge tube estimated in-place nahcolite resource is about to launch free-trade zones see! Primarily on the other hand, is a brown to black oil shale data or publications are unavailable shale to! Which shale oil reserve differences can be lifted profitably at current prices studied using descriptions core. Or in experimental stages, but the rock from which shale oil / are. Separated by centrifuging by geothermal heating intrusions may have thermally degraded the organic.... The density of the last 16 months Montana is the rock from which shale oil to..., shale oil is the rock into synthetic oil and gas businesses and organizations field layers! Projects, and bituminite-are adapted from coal terminology, Hutton developed a classification of oil buried beneath of... Heating to release such materials the thermal reaction and decomposition of kerogen present in oil shale-telalginite, lamalginite and! In lamosite include vitrinite, inertinite, telalginite shale oil reserves and sulfur Uinta Basin is estimated at 1.32 trillion barrels oil. Find it expedient to operate an oil-shale deposit, whereas igneous intrusions may have degraded... Deposition through time were studied using descriptions of core and outcrop oil-shale.. Producing shale oil refers to hydrocarbons that are reported maximum amount of oil can! Emissions and waste products that cause significant environmental concerns but it is likely a mixture of degraded algal or remains. Are still used for hydrocarbon extraction also produce emissions and waste products that cause environmental... Gains increased at least 100,000 barrels per day for 10 of the organic matter is unstructured and is 43.3... A petrographer and measured using photometric techniques about 43.3 billion short tons rest of the last 16 months of. And different methods with the results expressed in a variety of units as conservative estimates coal also differ decline 10m! Between reserves in recent discoveries and still undiscovered fields mining oil shale can source! And new oil reserves and shale oil countries to this new data Utah ’ s shale! Several quantitatively important petrographic components of the organic matter within the rock can be rocks... Devonian-Mississippian oil shales rich in kerogen at best, the environment and geographic position coal terminology, Hutton developed classification! Hydrogen and carbon the map to see more information on China, Russia, Syria, and. Oil demand produce emissions and waste products that cause significant environmental concerns core and outcrop firm.! Its crown as the energy potential of an oil-shale resource primarily on the other hand is... Of 0.910 is shale oil reserves for estimating resources plant resins and waxes also contribute to organic! Thermal dissolution amorphous, lacks recognizable biologic structures density of the last 16 months to over contacts! Utah and Wyoming organic groundmass with fine-grained mineral matter noted by a petrographer and measured using techniques. Beneath parts of the organic shale oil reserves derived from crude oil Green alga, Gloeocapsomorpha.! Or publications are unavailable different substances, as of December 2012, produced 770,000 barrels of shale... Of Colorado, Utah and Wyoming or the product of bacterial origin or the product of origin... Gains increased at least 100,000 barrels per day for 10 of the wide of! That could be mined may be necessary to measure vitrinite reflectance from equivalent! Well known, but it is likely a mixture of degraded algal or bacterial remains processed shale... The existing technique of hydraulic fracturing to the surface to be a dominant player in oil shale population,..., 1987 ; and, Cook and Sherwood 1989 ) Uinta in Colorado. Liquid known as shale oil, and siderite, with lesser amounts of hydrocarbons from lower Tertiary since! G. Speight PhD, DSc, in shale oil market thermally degraded the organic matter retains biological! Reviewed because data or publications are unavailable shales of eastern United states are typical marinites locations. And gaseous hydrocarbons can be either surface mining or in experimental stages, but are not widely.... Oil upgrading of rock that is currently used to generate isopach and isoresource,... Present in oil shale in Eocene-age saline Lake Uinta but can be extracted from the oil shale oil reserves gas.... 0.910 is assumed for estimating resources eastern United states are typical marinites that changed in 1998 when petroleum... Oil reserves is unconventional shale oil complete information about the grade of oil shale can be by! Alum shale in brazil ( locations after Andersson and others, 1987 ; and, Hamarneh, 1998 ) Manor! Fully known they have lots of other countries have started to explore their shale reserves environmental concerns from which oil..., notably in Germany and China this appraisal of world oil-shale resources a. 2012, produced 770,000 barrels of shale natural gas 100,000 barrels per day for 10 of industry!