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Increasing Oil Production from the Venango Second Sand. A Reappraisal of Two in Situ Combustion Tests.

Authors
Frohne-KH
Source
NTIS: PB 201 899 :15 pages
Link
NIOSHTIC No.
10008775
Abstract
In 1962 and 1963, two in situ combustion pilot tests were conducted in the shallow second venango sand near Reno, Pennsylvania. Because of poor oxygen utilization and lack of production response, both tests were considered failures and were terminated. The area was then relatively inactive until late 1966, when a development well drilled near the 1963 test site had surprisingly good production in what was considered to be a pressure-depleted reservoir. Other wells drilled in and around the old thermal pilot areas also came in as good oil producers. This report presents a study of the increased oil production from the second venango sand in the Reno area, and the apparent connection of the present production response and the old thermal pilot tests. Apparently combustion occurred in the second venango sand after the 1962 and 1963 experiments were terminated and, supported by large volumes of air left in the reservoir after the 1963 test, generated carbon dioxide which helped repressure the formation. This field evidence of combustion warrants another pilot experiment to further explore the use of properly designed in situ combustion techniques in increasing production from the second venango sand.
Publication Date
19710101
Document Type
IH; Report of Investigation;
Fiscal Year
1971
NTIS Accession No.
PB-201899
NTIS Price
A03
Identifying No.
RI 7536
NIOSH Division
MERC;
Source Name
NTIS: PB 201 899
State
PA;
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