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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract

Volume: 32 (1948)

Issue: 5. (May)

First Page: 745

Last Page: 766

Title: Geology of Benton Field, Franklin County, Illinois

Author(s): J. V. Howell (2)

Abstract:

The Benton pool was opened in January, 1941, and developed so rapidly that practically the entire area was drilled by the end of the year. Oil is produced from the Tar Springs sandstone at 2,000-2,100 feet. Accumulation is controlled by a northward-trending anticline with limited closure, but with abrupt gradation of sand to shale at the south, or critical side. Effective sand thickness is as great as 62 feet and the average for the field is 42 feet. Deeper sands have not been tested.

To June 1, 1947, the field had produced 18,656,892 barrels, and for the month produced 2,123 barrels per day. Two hundred forty-two producing wells were completed, of which three have been plugged. The recovery to date has been slightly more than 77,000 barrels per well for each productive well drilled.

Most of the wells have been drilled through abandoned, active, and projected coal mines, and the special methods used are discussed, as well as the history of discovery, reservoir conditions, and sand conditions.

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