characteristics of tar sand

Elevation ranges from 700 to 1400 feet.

Rim sandstone that occurs along the margin of the. You have to login with your ACS ID befor you can login with your Mendeley account.

Canada’s oil sands are concentrated mostly in Alberta, extending slightly into the Saskatchewan border. Microbe bacteria contained in the water fed off the lighter hydrocarbon molecules, in a process called biodegradation. [1] Bitumen is a thick, sticky, black oil that can form naturally in a variety of ways, usually when lighter oil is degraded by bacteria. The excessively drained Boone soils are nearby on uplands where sandstone bedrock is at a depth of 20 to 40 inches.

The excessively drained and moderately well drained Impact soils are in landscape positions similar to those of Tarr soils where there is a thick dark colored surface layer.

A preliminary characterization of a Utah tar sand bitumen has been made using methods developed for high boiling petroleum fractions. Thickness of the solum ranges from 20 to 40 inches.

A typical oil sands deposit contains about 10% bitumen, 5% water and 85% solids. Citations are the number of other articles citing this article, calculated by Crossref and updated daily.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the The hydrocarbon occurs in two predominantly sandy zones separated by an 8 m thick oil shale. The Nigerian tar sands compare closely with the Athabasca sands in all the above textural parameters. Generally tar sand comprises an intimate mixture of bitumen, water, quartz sand and clays. How much of U.S. carbon dioxide emissions are associated with electricity generation? The hydrocarbon occurs in two predominantly sandy zones separated by an 8 m thick oil shale. Some pedons have a BC horizon with hue of 7.5YR or 10YR, value of 5 to 8, and chroma of 4 to 8. It is sand or fine sand. Shale deposits can decline even faster, as much as 40% per year, requiring constant movement of drilling rigs. The solids contained within the oil sands deposit is mostly quartz silica sand (usually over 80%), with a small fraction of potassium feldspar and fine clays.

Fines tend to be clustered together within the deposit, sometimes referred to as a clay lens. Although oil sands and shale deposits are found all over the world, the Alberta oil sands are, BITUMEN RECOVERY FROM ATHABASCA OIL SANDS — VOL 1: THEORETICAL BASIS, BITUMEN RECOVERY FROM ATHABASCA OIL SANDS — VOL 2: INDUSTRIAL PRACTICE. The mass loss obtained from TGA was found to be independent of the heating rate at 35% of the original mass.

Theoretical considerations suggest that given species are partitioned between the maltene and asphaltene portions further contributing to a lack of chemical distinction between maltene and asphaltene species.

… The exact composition of Alberta's oil sands can vary greatly, even within the same geological formation.

Thus, asphaltenes appear to be chemically nondistinct from maltenes and correlations between asphaltene content and processability, while useful to an engineer, are chemically fortuitous.

All rights reserved. Reaction ranges from very strongly acid to slightly acid in the substratum. It shows an upward fining of grains and increased consolidation updip. Heavy crude has density approaching, or even exceeding, that of water.

Heavy crude can’t be produced, transported, and refined by conventional methods because it has high concentrations of sulfur and several metals, particularly nickel and vanadium. When exposed to atmosphere for prolonged periods of time, bitumen can become "aged", making hot water separation much less efficient. Asphaltenes have an extremely complex molecular structure, imparting a high viscosity to the oil. The Bw horizon has hue of 7.5YR or 10YR; value of 3 to 6; and chroma of 3 to 8. The Athabasca oil sands found in Alberta are water-wet, meaning a layer of water is thought to coat the bitumen and solids. The remaining portion of the bitumen is in the form of maltenes, which can be further fractionated into saturates, aromatics and resins. It is sand or fine sand. In both cases, the resulting bitumen product can either be sent to an upgrader, for conversion into synthetic crude oil, or diluted and sold directly to refineries. The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative

Tar sands (also called oil sands) are a mixture of sand, clay, water, and bitumen.

REMARKS: Diagnostic horizons and features recognized in this pedon are: ochric epipedon - from 2 to 6 inches (A); coated feature - 5 percent or less silt plus clay as a weighted average in the particle-size control section; siliceous feature - have less than 10 percent weatherable minerals (0.02 to 2 mm fraction) in the particle-size control section. These deposits require the use of solvents and chemicals to separate the heavy oil from the solids.

A preliminary characterization and beneficiation study of Jordanian tar sand obtained from the Dead Sea area has been carried out. It is sand or fine sand.

No chemical features (e.g., carbon type, heteroatom type, molecular weight, or structure) were found that distinguished species found in the asphaltenes fraction from those in the maltenes fraction. Hookson soils (MAP=44) inches are more moist in the soil moisture control section during the 120 days following the summer solstice and they have 5 percent or less of silt plus clay throughout. Permeability is rapid.

What are the major sources and users of energy in the United States. [1] Bitumen is a thick, sticky, black oil that can form naturally in a variety of ways, usually when lighter oil is degraded by bacteria.

It was found that the activation energy, in the region of fuel deposition, changes from 32 kJ/mol to 42 kJ/mol by increasing the heating rate from 1 °C/min to 50 °C/min, respectively. INTRODUCTION Until recently, tar sand deposits have been of relatively little importance as an energy resource.

Other oil sands, tar sands or shale deposits, commonly found in places like Venezuela and Utah, are oil-wet and therefore cannot be separated in a water-based process.

However, only 10% of this volume can be economically recovered at current oil prices.

Oil sands deposits are localized in 3 regions, categorized in one of three basins — Athabasca, Peace River, and Cold Lake: The Athabasca basin is by far the largest, spanning an area of about 40,000 km². Mean annual temperature ranges from 46 to 51 degrees F. The frost free period ranges from about 135 to 160 days.

TAXONOMIC CLASS: Mesic, uncoated Typic Quartzipsamments, TYPICAL PEDON: Tarr sand - on a southwest-facing slope of 3 percent in woodland at an elevation of about 940 feet. The moderately well drained Tintson soils are in landscape positions similar to those of Tarr soils where there is a loamy substratum at 40 to 60 inches. While average properties differ between asphaltenes and maltenes, major overlap between these fractions is experienced with respect to carbon type, heteroatom type, molecular weight, and volatility. Bw1--6 to 13 inches; dark yellowish brown (10YR 3/4) sand; weak fine subangular blocky structure; very friable; common fine and medium roots; strongly acid; clear smooth boundary. Characteristics of some major Utah tar sand deposits 16 3.

► Tar sand is composed of quartz particles of < 1 mm surrounded by a bitumen envelope.

Surface runoff is slow to very rapid. C--34 to 62 inches; yellowish brown (10YR 5/8) sand; single grain; loose; moderately acid. Some of the existing and planned attempts to mitigate the environmental impacts of mining tar sands include using non-potable and recycled water, moving to in-situ rather than open-pit mining to decrease land use and waste, and using carbon capture and storage to reduce greenhouse gas emissions from the extraction and use of oil from tar sands.

DISTRIBUTION AND EXTENT: West-central Wisconsin.

Once processed, then bitumen can be then refined into oil. Tint series.

The fines are contained within the water phase of the deposit.

Copyright © 2012 Elsevier B.V. All rights reserved. DID YOU KNOW?

This is an estimate of the total volume of oil that can be extracted in the future. ► Most of bitumen content in Jordanian tar sand is concentrated in the fraction (< 106 μm).


Get article recommendations from ACS based on references in your Mendeley library. [3], Because bitumen is very thick and does not flow easily, it clings to the sand and clay and can’t be simply pumped out of the ground through wells like conventional oil.

Find more information about Crossref citation counts. Conventional wisdom is that the grains of sand are covered with a water layer, although this theory has never been proven. The Alberta oil sands hold an estimated 164 billion barrels of recoverable oil. The Cold Lake basin spans an area of about 22,000 km², extending into Saskatchewan. A brief treatment of tar sands follows. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. Heavy crude oil is also known as “tar sands” because of its high bitumen content. Carver soils have 25 percent or more of coarse and very coarse sand and less than 50 percent of either medium, fine or very fine sand.


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