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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 63 (1979)

Issue: 3. (March)

First Page: 468

Last Page: 468

Title: Effect of Depletion on Near-Surface Hydrocarbon Anomalies: ABSTRACT

Author(s): Leo Horvitz

Article Type: Meeting abstract

Abstract:

Early in the history of geochemical prospecting, it was recognized that more intense Previous HitsoilNext Hit-hydrocarbon anomalies occur in the near-surface Previous HitsoilNext Hit over newly discovered petroleum accumulations than over those that are depleted or nearing depletion. The first convincing confirmation of this effect was obtained in 1968 after resurveying the Hastings oil field, Brazoria County, Texas, which previously was sampled in 1946. The outstanding Previous HitsoilNext Hit hydrocarbon anomaly of the earlier survey did not reappear in the 1968 study.

Surveys conducted in 1970-71 over new and old oil and gas producing areas in Jackson County, Texas, furnished additional support to the thesis that removal of hydrocarbons from subsurface reservoirs affects near-surface Previous HitsoilTop hydrocarbon anomalies.

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Copyright 1997 American Association of Petroleum Geologists