Results 101 to 110 of about 980 (154)

Tar sand pretreatment with diluent

Mining, Metallurgy & Exploration, 1993
Important aspects of kerosene penetration into tar sand have been investigated. The natural tar sand porosity was measured and used to analyze the performance of the hot water process. Subsequently, pretreatment experiments, using 20-kg tar sand samples (Asphalt Ridge and Whiterocks, Utah) and kerosene as a diluent were carried out at the expected ...
J. Hupka, J. D. Miller
openaire   +1 more source

The Economic Enigma of the Tar Sands

Canadian Public Policy / Analyse de Politiques, 1982
In this paper, a project financial analysis of the operation of a hypothetical tar sands unit is carried out for a range of conditions to determine the oil price required to ensure financial viability of the unit. The paper attempts to answer the question: Is it economically sensible to extract oil from the tar sands using current technology?
G. W. Brandie, R. H. Clark, J. C. Wiginton   +2 more
openaire   +1 more source

Developments in Tar Sands in 1981

AAPG Bulletin, 1982
ABSTRACT Activity in tar sands projects during 1981 continued at a very significant pace. The bulk of activity was in Canada, where 38 pilot projects were active, 2 commercial plants continued operations, 1 commercial scheme was canceled, and another was put into the “twilight zone.” Activity in the United States was low, whereas ...
J. Henri, N. Wennekers
openaire   +1 more source

Tar Sand Triangle--Largest United States Tar Sand Deposit: ABSTRACT

AAPG Bulletin, 1984
Estimates of 4-8 billion bbl of oil in place make the Tar Sand Triangle the largest known deposit of tar sand in the United States. At present, 14 different companies or individuals hold leases in the area, most of which are for in-situ development of the tar sand resource.
openaire   +1 more source

Preliminary Geostatistical Investigations Of Tar-Bearing Sands, Lease-13, Athabasca Tar Sands

Journal of Canadian Petroleum Technology, 1977
Abstract Preliminary geostatistical studies of the tar sand measures in the Lower Cretaceous McMurray formation have shown that variograms of net thickness and grade of tar sand are well formed. These show that the variogram ranges (radii of influence) of net thickness and grade are 4,000-5,000 feet, much wider than
openaire   +1 more source

Air quality at the tar sands

Environmental Science & Technology, 1979
Syncrude Canada, Ltd., a $2.14 billion venture that is expected to produce 129,000 bpd of synthetic crude oil at its design capacity, employs a sophisticated air quality monitoring system. The system monitors baseline meteorological conditions, ambient air quality, static air quality, biological air quality, and source-emissions, and employs sulfur ...
openaire   +1 more source

Tar Sands and Oil Shales

Scientific American, 1966
The worlds largest potential liquid-hydrocarbon reserves are not recoverable by ordinary oil-producing methods. These reserves are the Athabasca tar sands of northern Alberta in Canada and the Green River oil shales of Colorado, Utah, and Wyoming. The two deposits differ in their chemistry, physical state, and history.
openaire   +1 more source

Tar Sands Development: ABSTRACT

AAPG Bulletin, 1973
Tar sands (also known as oil sands and bituminous sands) are sand deposits which are impregnated with dense viscous petroleum. Ultimate world reserves of bitumen in tar sands are about equal to ultimate reserves of crude oil in the United States. However, the only tar-sand deposit of present commercial importance is in the Athabasca area of Alberta ...
openaire   +1 more source

Excavating Tar Sands in Canada

SAE Technical Paper Series, 1975
<div class="htmlview paragraph">This paper discusses the history of the Athabasca Oil Sands in Alberta, Canada, from the time of their discovery in 1788 to the present. These oil sands extend over 30,000 swuare miles and are equal to half of the world's known “conventional” oil accumulations.
openaire   +1 more source

Game Over for the Tar Sands?

Dissent, 2016
Today, plunging oil prices have sent Alberta into an ever-deepening recession; climate change is defining presidential legacies; and opposition to the tar sands has ballooned, with significant popular protests breaking out along proposed pipeline routes across Canada.
openaire   +1 more source