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Book Chapter

10: Libra: A Newborn Giant in the Brazilian Presalt Province

By
Marco Antonio Carlotto
Marco Antonio Carlotto
Petrobras (Petróleo Brasileiro S.A.), Rio de Janeiro, Brazil
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Rodrigo Correia Baptista da Silva
Rodrigo Correia Baptista da Silva
Petrobras (Petróleo Brasileiro S.A.), Rio de Janeiro, Brazil
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Arlindo Akio Yamato
Arlindo Akio Yamato
Petrobras (Petróleo Brasileiro S.A.), Rio de Janeiro, Brazil
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Wagner Luz Trindade
Wagner Luz Trindade
Petrobras (Petróleo Brasileiro S.A.), Rio de Janeiro, Brazil
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Jobel Lourenço Pinheiro Moreira
Jobel Lourenço Pinheiro Moreira
Petrobras (Petróleo Brasileiro S.A.), Rio de Janeiro, Brazil
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Ricardo Augusto Rosa Fernandes
Ricardo Augusto Rosa Fernandes
Petrobras (Petróleo Brasileiro S.A.), Rio de Janeiro, Brazil
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Orlando José Soares Ribeiro
Orlando José Soares Ribeiro
Petrobras (Petróleo Brasileiro S.A.), Rio de Janeiro, Brazil
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Wenceslau Peres Gouveia, Jr.
Wenceslau Peres Gouveia, Jr.
Shell Brasil Petróleo Ltda., Rio de Janeiro, Brazil
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Julien Philippe Carminati
Julien Philippe Carminati
Total E & P do Brasil Ltda., Rio de Janeiro, Brazil
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Deng Qicai
Deng Qicai
CNOOC Petroleum Brasil Ltda., Rio de Janeiro, Brazil
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Zhao Junfeng
Zhao Junfeng
CNODC Brasil Petróleo e Gás Ltda., Rio de Janeiro, Brazil
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Augusto Carlos da Silva-Telles, Jr.
Augusto Carlos da Silva-Telles, Jr.
PPSA (Pré-Sal Petróleo S.A.), Rio de Janeiro, Brazil
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Published:
January 01, 2017

ABSTRACT

As the operator of several exploratory blocks in ultradeep waters, Petrobras was responsible for many presalt oil discoveries in Santos Basin such as Tupi, Carioca, Guará, and Iara. In partnership with the National Petroleum, Natural Gas and Biofuels Agency (ANP), Petrobras drilled well 2-ANP-2A, which resulted in the Libra discovery. In 2013, Libra was offered in the first bidding round executed by the Brazilian government under the new Production Sharing Contract for presalt areas. The winning consortium is comprised of Petrobras (operator), Shell, Total, CNOOC (China National Offshore Oil Corporation), CNPC (China National Petroleum Corporation), and PPSA (Pré-Sal Petróleo S.A.).

The Libra discovery is sitting over a structural trap of about 550 km2 (212 mi2) closure at the Aptian top reservoirs level presenting a maximum oil column that can reach up to 900 m (2953 ft). The main reservoirs are lacustrine carbonates, deposited from the Neobarremian until the Aptian. Preliminary estimates indicate a volume of oil in place between 8 and 12 billion BOE.

The development proposed for Libra started with Phase 0, in 2014, and is focused on information gathering, including appraisal wells, extended well tests (EWT), early production systems (EPS), and a pilot project. Phase 1 encompasses the definitive production systems and is expected to start in 2022 and finish in 2030.

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Contents

AAPG Memoir

Giant Fields of the Decade 2000–2010

R. K. Merrill
R. K. Merrill
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C. A. Sternbach
C. A. Sternbach
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The American Association of Petroleum Geologists
Volume
113
ISBN electronic:
9781629812762
Publication date:
January 01, 2017

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