Recognizing environments in the deposits of the Niger delta
Conference
·
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
OSTI ID:7024890
- Univ. of Cambridge (United Kingdom)
The paralic sediments of the Agbada Formation are the targets of commercial exploration and exploitation of oil and gas in the Niger delta. Sedimentological and microfossil data from a middle Miocene reservoir in the delta have revealed a succession of deltaic subenvironments of deposition within a prograding offlap sequence. Ten lithofacies, comprising five sandstone, three heterolithic, and two mudstone types, are recognized from grain size, sedimentary structures, and trace fossils in two cored boreholes. Fourteen palynodebris types, including amorphous organic matter, various types of palynomorphs, and wood, were identified in the sediments. These components were subjected to principal component analysis and cluster analysis. The resulting palynofacies are integrated with lithofacies and paleoecological inferences made from the palynomorph and foraminifera contents of the sediments for paleoenvironmental reconstruction. Gamma-ray log correlation of the reservoir in uncored boreholes was carried out, using information from the cores, and this has resulted in a depositional model.
- OSTI ID:
- 7024890
- Report Number(s):
- CONF-910403--
- Conference Information:
- Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 75:3
- Country of Publication:
- United States
- Language:
- English
Similar Records
Multivariate statistical analyses of palynodebris from the Middle Miocene of the Niger Delta and their environmental significance
Foraminiferal biostratigraphy, depositional environments and hydrocarbon source rock potential of sediments from five wells in the western offshore region of the Niger delta, Nigeria
Sedimentology and origin of source rocks in the Tertiary Niger delta
Journal Article
·
Mon Nov 30 23:00:00 EST 1992
· Palaios; (United States)
·
OSTI ID:6426633
Foraminiferal biostratigraphy, depositional environments and hydrocarbon source rock potential of sediments from five wells in the western offshore region of the Niger delta, Nigeria
Thesis/Dissertation
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:5495933
Sedimentology and origin of source rocks in the Tertiary Niger delta
Conference
·
Mon Aug 01 00:00:00 EDT 1988
· AAPG Bull.; (United States)
·
OSTI ID:5840232
Related Subjects
02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
AFRICA
CENOZOIC ERA
COASTAL REGIONS
DEPOSITION
DEVELOPING COUNTRIES
EXPLORATORY WELLS
FOSSILS
GAMMA LOGGING
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC HISTORY
GEOLOGIC MODELS
GEOLOGY
MINERAL RESOURCES
MIOCENE EPOCH
NATURAL GAS DEPOSITS
NIGER RIVER
NIGERIA
PALEONTOLOGY
PALYNOLOGY
PETROLEUM DEPOSITS
RADIOACTIVITY LOGGING
RESERVOIR ROCK
RESOURCES
RIVER DELTAS
RIVERS
STRATIGRAPHY
STREAMS
SURFACE WATERS
TERTIARY PERIOD
WELL LOGGING
WELLS
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
AFRICA
CENOZOIC ERA
COASTAL REGIONS
DEPOSITION
DEVELOPING COUNTRIES
EXPLORATORY WELLS
FOSSILS
GAMMA LOGGING
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC HISTORY
GEOLOGIC MODELS
GEOLOGY
MINERAL RESOURCES
MIOCENE EPOCH
NATURAL GAS DEPOSITS
NIGER RIVER
NIGERIA
PALEONTOLOGY
PALYNOLOGY
PETROLEUM DEPOSITS
RADIOACTIVITY LOGGING
RESERVOIR ROCK
RESOURCES
RIVER DELTAS
RIVERS
STRATIGRAPHY
STREAMS
SURFACE WATERS
TERTIARY PERIOD
WELL LOGGING
WELLS