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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 65 (1981)

Issue: 5. (May)

First Page: 967

Last Page: 967

Title: Stratigraphic and Unconformity Traps in Niger Delta: ABSTRACT

Author(s): James M. Orife, Akpo A. Avbovbo

Article Type: Meeting abstract


Although hydrocarbons are dominantly trapped in rollover anticlines and fault closures in the Niger delta, some stratigraphic traps have also been recognized. Three types of stratigraphic accumulations are recognized in the Niger delta: (1) crestal accumulations below mature erosion surfaces; (2) canyon fill accumulations above unconformity surfaces; and (3) facies-change traps.

Several important oil discoveries in offshore southeastern Nigeria are associated with crestal accumulations below erosional surfaces. In addition, canyon fill accumulations have been observed in offshore southeastern Nigeria within the Qua Iboe Shale. Recent discoveries have also shown accumulations within the Opuama Clay in the western flank of the Niger delta. Facies-change traps have also been observed in the central part of the Niger delta. The various stratigraphic traps observed in the Niger delta are identified by interpretation of seismic data.

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Copyright 1997 American Association of Petroleum Geologists