Results 171 to 180 of about 658,079 (225)

Silurian Evolution of Central Appalachian Basin

AAPG Bulletin, 1978
Abstract Isopach and lithofacies maps of eight Silurian formations illustrate that during Middle Silurian time a broad shelf emerged from southeast to northwest across southern West Virginia, separating an adjacent basin on the north from the rest of the Appalachian trough in Ohio, Kentucky, and Tennessee. This subdivision of the once-
Richard Smosna, Douglas Patchen
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Analysis of Appalachian Basin Economics

Journal of Petroleum Technology, 1974
With improved wellhead prices, substantial risk capital is now available for developing modest per-well reserves in the Appalachian Basin. The leasing of tangible well equipment can, in instances where wells are better than marginal, provide additional economic incentives by improving the discounted cash flow rate of return.
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Changing Culture and Behaviors in the Appalachian Basin

SPE International Conference on Health, Safety, and Environment, 2014
Abstract Over the past decades major oil companies left the Appalachian Basin, leaving only small independents to operate the mature oil fields. Many of the regions drilling contractors worked under turnkey operations to drill shallow, vertical wells, developing a "get things done fast" working approach.
H. C. Reavis, Steve Loop
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Central Basin of Appalachian Geosyncline

AAPG Bulletin, 1941
This paper has for its purpose the summary and critical examination of existing information and opinion relative to the structure and stratigraphy of the central part of the Appalachian geosyncline. The Appalachian geosyncline is made up of three major basins of deposition: (1) a Northern basin with its deepest point near Altoona ...
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Identifying Fracture Geometry in the Appalachian Basin

SPE Eastern Regional Meeting, 1999
Abstract Identification of fracture geometry is necessary for the proper design and execution of a hydraulic fracture treatment. The Appalachian Basin consists of many different producing formations. These formations can vary in depth from 600 ft. to 7700 ft.
R. Jacot, Bruce Meyer, Roger Myers, Len Paugh   +3 more
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Provenance of the Newfoundland Appalachian foreland basins

American Journal of Science, 2019
The tectonic history of the Appalachian orogen is recorded in the adjacent foreland. Offshore seismic data suggest that an initial, Middle Ordovician foreland basin was filled by sources in Newfoundland, whereas the Late Ordovician foreland basin was loaded and filled by sources to the SW, in the Quebec segment of the orogen, where NW-vergent Taconian ...
Shawna E. White, John W.F. Waldron, Greg R. Dunning, S. Andrew Dufrane   +3 more
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Central Appalachian Tectonics and the Deep Basin

AAPG Bulletin, 1964
ABSTRACT Much of the central Appalachian region fits a geometric pattern that is bilaterally symmetrical to an axis passing N. 40° W. from the Baltimore dome through the high point of the Nittany arch. Many elements are likewise concentric to a focus situated on that axis near Baltimore, Maryland, and are symmetrically tangent to a ...
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Sequences, cycles, and basin dynamics in the Silurian of the Appalachian Foreland Basin

Sedimentary Geology, 1990
Abstract Field stratigraphic analysis of the Early and medial Silurian strata of Ontario, New York and Pennsylvania permits recognition of six major sequences, reflecting 3rd-order cycles, in the Niagaran (Llandoverian-Ludlovian) of New York and adjacent regions.
Carlton E. Brett, William M. Goodman, Steven T. LoDuca   +2 more
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Natural Gases of Appalachian Basin

1968
Abstract The Appalachian basin or area embraces about 100 million surface acres within parts of eight states—New York, Pennsylvania, Ohio, West Virginia, Maryland, Kentucky, Tennessee, and Alabama. It also includes a section of southwestern Ontario, Canada, Although petroleum and natural gas have been known to be present ...
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Re-Fracturing the Appalachian Basin: An Economic Analysis

SPE Eastern Regional Meeting, 2019
Abstract In the past ten years, hydraulic fracturing technology and strategies have made major improvements in the operational efficiency and economic performance of shale well completions. Much of this advancement was derived in the past three years as a response to the global downturn in oil and gas commodity pricing.
Kade Kiselica, Taylor Jennings
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