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GEOREF RECORD

Main trap models of OGX's oil discovery from Albian/Cenomanian carbonate reservoirs; Cabo Frio High, southern Campos Basin

Osvaldo Braga Silva, Paulo Ricardo Santos, Leonardo Borges Caixeta, Carolina Ribeiro and Paulo Barros
Main trap models of OGX's oil discovery from Albian/Cenomanian carbonate reservoirs; Cabo Frio High, southern Campos Basin (in Papers presented at the 32nd annual GCSSEPM Foundation Bob F. Perkins research conference; New understanding of the petroleum systems of continental margins of the world, Norman C. Rosen (editor), Paul Weimer (editor), Sylvia Maria Coutes dos Anjos (editor), Sverre Henrickson (editor), Edmundo Marques (editor), Mike Mayall (editor), Richard Fillon (editor), Tony D'Agostino (editor), Art Saller (editor), Kurt Campion (editor), Tim Huang (editor), Rick Sarg (editor) and Fred Schroeder (editor))
Papers presented at the Gulf Coast Section, Society of Economic Paleontologists and Mineralogists Foundation Annual Bob F. Perkins Research Conference (2012) 32: 347-364

Abstract

The great geological success in OGX's oil prospecting at the Albian-Cenomanian carbonate shelf on the southern Campos basin involves at least three different geologic components: (1) the appropriate geographic position of the traps within a low geopressure zone, away from the high pressure oil kitchen (external rift) and beyond the most prolific oil carrier bed of the Campos basin-the Cabo Frio fault system (Papa Terra, Maromba, Polvo and Peregrino oil fields and all of the discoveries made by OGX); (2) the Late Cretaceous and mainly early Tertiary magmatic events that contributed to the generation of an intensive and extensive high secondary porosity and increased permeability by thermobaric effects on the carbonate rocks; and (3) the presence of a high energy carbonate depositional system in the Quissama Formation (Albian) and Imbetiba Formation (Cenomanian), which involves lateral accretion [e.g., Pipeline (1-OGX-2A-RJS well), Waimea (1-OGX-3-RJS well), Etna (1-OGX-6-RJS well), Fuji (1-OGX-8-RJS well), Illimani (1-OGX-28D-RJS well), Pero (1-OGX-14-RJS well), and Tambora (1-OGX-52-RJS well)] and vertical stacking [e.g., Waikiki (1-OGX-25-RJS well)] of thickening and shoaling upward carbonate depositional cycles. The oil accumulations in the Quissama Formation are well defined by logs and pressure data (Pipeline, Etna, Illimani, Fuji, Waimea and Tambora wells) and are typically related to five tilted fault block trends (faults strike direction northeast/southwest), sub-parallel to the Cabo Frio fault system, all of which are filled to the spill-point, and each has a different oil/water contacts. As a general rule the antithetic faults act as the major controlling seal for the oil accumulations in these three-way dip closure structures. The last successfully tested exploration model was a stratigraphic-structural trap formed by the updip pinch out of prograding carbonate shoals in the Imbetiba Formation relative to regional structural dip. This was drilled by the 1-OGX-14-RJS well (Pero Prospect) with an oil column of approximately 60 m based on pressures and well log data.


ISSN: 1544-2462
Serial Title: Papers presented at the Gulf Coast Section, Society of Economic Paleontologists and Mineralogists Foundation Annual Bob F. Perkins Research Conference
Serial Volume: 32
Title: Main trap models of OGX's oil discovery from Albian/Cenomanian carbonate reservoirs; Cabo Frio High, southern Campos Basin
Title: Papers presented at the 32nd annual GCSSEPM Foundation Bob F. Perkins research conference; New understanding of the petroleum systems of continental margins of the world
Author(s): Silva, Osvaldo BragaSantos, Paulo RicardoCaixeta, Leonardo BorgesRibeiro, CarolinaBarros, Paulo
Author(s): Rosen, Norman C.editor
Author(s): Weimer, Pauleditor
Author(s): Coutes dos Anjos, Sylvia Mariaeditor
Author(s): Henrickson, Sverreeditor
Author(s): Marques, Edmundoeditor
Author(s): Mayall, Mikeeditor
Author(s): Fillon, Richardeditor
Author(s): D'Agostino, Tonyeditor
Author(s): Saller, Arteditor
Author(s): Campion, Kurteditor
Author(s): Huang, Timeditor
Author(s): Sarg, Rickeditor
Author(s): Schroeder, Frededitor
Affiliation: OGX Petroleo e Gas Participacoes, Rio de Janeiro, Brazil
Pages: 347-364
Published: 2012
Text Language: English
Publisher: Society of Economic Paleontologists, Gulf Coast Section (GCSSEPM) Foundation, Houston, TX, United States
ISBN: 978-0-9836097-8-0
Meeting name: 32nd annual GCSSEPM Foundation Bob F. Perkins research conference
Meeting location: Houston, TX, USA, United States
Meeting date: 20121202Dec. 2-5, 2012
References: 4
Accession Number: 2017-003524
Categories: Economic geology, geology of energy sources
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects., geol. sketch maps
S24°00'00" - S18°00'00", W41°00'00" - W38°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 201704
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