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Subsurface temperatures and geothermal gradients on the North Slope, Alaska

Society of Petroleum Engineers of AIME, (Paper) SPE

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Abstract

Geothermal gradients as interpreted from a series of high-resolution stabilized well-bore-temperature surveys from 46 North Slope, Alaska, wells vary laterally and vertically throughout the near-surface sediment (0-2,000 m). The data from these surveys have been used in conjunction with depths of ice-bearing permafrost, as interpreted from 102 well logs, to project geothermal gradients within and below the ice-bearing permafrost sequence. The geothermal gradients calculated from the projected temperature profiles are similar to the geothermal gradients measured in the temperature surveys. Measured and projected geothermal gradients in the ice-bearing permafrost sequence range from 1.5??C/100m in the Prudhoe Bay area to 5.1??C/100m in the National Petroleum Reserve in Alaska (NPRA).

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Subsurface temperatures and geothermal gradients on the North Slope, Alaska
Series title:
Society of Petroleum Engineers of AIME, (Paper) SPE
Year Published:
1989
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article