Sequence stratigraphy analysis of Carapita E Lower Miocene; North of Monagas, Venezuela
- Corpoven S.A., Puerto La Cruz (Venezuela)
The Carapita E sandstone is of lower Miocene age, and occurs in the maturin sub-basin within the active thrust belt of the eastern Venezuela tertiary foreland basin. This basin is a prolific hydrocarbon basin and the Carapita sandstones form an important reservoir system. This study is based on an integration of well logs and cores from 56 wells covering an area of more than 39.000 km[sup 2] the sediments were interpreted in terms of depositional environments and sequence stratigraphic patterns. The sandstone unit overlies a type I sequence boundary (25,5 m.y.) and in the central and western part of the study area it is interpreted as a lowstand systems tract, deposited within an incised valley on the shelf. Further east, the sediments were deposited in a coastal to shelf setting and the unconformable sequence boundary is interpreted to pass into a correlative conformity. These more distal shoreline sands from a shelf-perched lowstand prograding wedge which is coeval with the incised valley fill further landward they comprise coastal and nearshore deposits in the form of prograding coastal/deltaic bars and shoreline sands. This detailed sedimentological and sequence stratigraphic study has resulted in improved productivity and optimization of hydrocarbon recovery from the Carapita E sands.
- OSTI ID:
- 6066915
- Report Number(s):
- CONF-930306--
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (United States), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Vol. 77:2; ISSN 0149-1423; ISSN AABUD2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sequence stratigraphic and tectonic controls on Shannon incised-valley distribution, Hartzog Draw, Wyoming
Sequence stratigraphic and tectonic controls on Shannon incised-valley distribution, Hartzog Draw, Wyoming
Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
BOUNDARY LAYERS
CENOZOIC ERA
DEPOSITS
DEVELOPING COUNTRIES
DRILL CORES
ENHANCED RECOVERY
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
GEOLOGY
HYDROCARBONS
LATIN AMERICA
LAYERS
MINERAL RESOURCES
OIL FIELDS
ORGANIC COMPOUNDS
PETROLEUM DEPOSITS
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY BASINS
SEDIMENTARY ROCKS
SEDIMENTS
SOUTH AMERICA
STRATIGRAPHY
TERTIARY PERIOD
VENEZUELA
WELL LOGGING