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Book Chapter

Oil Horizons in the Middle East1

By
Douglas A. Greig
Douglas A. Greig
New York, New York
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Published:
January 01, 1958

Abstract

The oil horizons in the world's greatest productive basin range in age from Miocene to Jurassic. With additional prospecting, older producing horizons can confidently be expected. The younger Tertiary horizons produce on the mobile or mountainward side of the basin. Older horizons thus far have their major accumulations on the low foreland shelf of the basin with the older horizons being productive higher on the shelf than the younger horizons.

Generally speaking, all the oils are relatively high in sulfur and there is a tendency for the oil gravities to become lighter with depth and toward the center of the basin. There is an indication of a tar belt on the northwest side of the basin, as exemplified by the famous tar seepages of Hit. Through Syria, prospecting has thus far been negative in spite of a satisfactory stratigraphic section being present. Three types of structures are present—1. strongly folded and commonly long anticlinal structures paralleling the front of the mobile mountains; 2. long, broad, gentle, uniform structures of the shelf; and 3. a large number of salt domes. A unique feature of this basin is the repeated occurrence of evaporites from the Cambrian up to the Miocene. Apparently, these evaporite beds act as an excellent sealing agent to retain the oil in place.

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Contents

AAPG Special Publication

Habitat of Oil

Lewis G. Weeks
Lewis G. Weeks
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American Association of Petroleum Geologists
ISBN electronic:
9781629812434
Publication date:
January 01, 1958

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