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Total petroleum systems of the Illizi Province, Algeria and Libya; Tanezzuft-Illizi

November 1, 2000

Undiscovered conventional oil and gas resources were assessed within a total petroleum system of the Illizi Province (2056) as part of the U.S. Geological Survey World Petroleum Assessment 2000. The Illizi Province is in eastern Algeria and a small portion of western Libya. The province and its total petroleum system coincide with the Illizi Basin. Although several total petroleum systems may exist within the Illizi Province, only one “composite” total petroleum system is identified. This total petroleum system comprises a single assessment unit. The main source rocks are the Silurian Tanezzuft Formation (or lateral equivalents) and Middle to Upper Devonian mudstone. The total petroleum system was named after the oldest major source rock and the basin in which it resides. The estimated means of the undiscovered conventional petroleum volumes in the Tanezzuft-Illizi Total Petroleum System are 2,814 million barrels of oil (MMBO), 27,785 billion cubic feet of gas (BCFG), and 873 million barrels of natural gas liquids (MMBNGL).

Citation Information

Publication Year 2000
Title Total petroleum systems of the Illizi Province, Algeria and Libya; Tanezzuft-Illizi
DOI 10.3133/b2202A
Authors T. R. Klett
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Bulletin
Series Number 2202
Index ID b2202A
Record Source USGS Publications Warehouse
USGS Organization

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