Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/07151917381 |
Tectono-sedimentary evolution and petroleum systems of the Mundau subbasin: A new deep-water exploration frontier in equatorial Brazil | |
de Almeida, Narelle Maia1,2; Alves, Tiago M.3; Nepomuceno Filho, Francisco4; Sa Freire, George Satander1; Braga de Souza, Ana Clara1; Normando, Marcio Nunes1; Leopoldino Oliveira, Karen M.1; da Silva Barbosa, Thiago Henrique5 | |
2020-04-15 | |
发表期刊 | AAPG BULLETIN |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2020 |
卷号 | 104期号:4页码:795-824 |
文章类型 | Article |
语种 | 英语 |
国家 | Brazil; Wales |
英文摘要 | The Brazilian equatorial margin (BEM) evolved in response to transform motion between Brazil and Africa. In 2012, Petrobras drilled the Pece ' m well in the Mundau subbasin (Ceara Basin) of the BEMto record the first deep-water oil discovery in the region. This work investigates the deep-water evolution of the Mundau subbasin focusing on its structural and sedimentary evolution, and characterizes the petroleum systems in this new exploration frontier. For such purposes, poststack seismic reflection, borehole, and geochemical data were used. Three tectono-stratigraphic sequences representing synrift (Mundau Formation), transitional (Paracuru Formation), and drift strata (Ubarana Formation) were divided into seven seismic units. Different tectonic domains were interpreted: proximal, distal, and Romanche Fracture Zone. Typical structures of transform margins, such as marginal ridges and marginal plateaus, were not identified in the Mundau ' subbasin. Instead, the subbasin was predominantly deformed by transtensional movements. The Mundau and Paracuru Formations are mature within the oil window, whereas the Ubarana Formation is immature. Main reservoir intervals consist of approximately 1-m (similar to 3.28-ft)-thick intercalations of sandstone between shales, siltstones, and marls. The seal rocks comprise shales in the Ubarana Formation, whereas the hydrocarbon trap is related to an unconformity and a normal fault. This work concludes that the Paracuru Formation is the main source and reservoir in the deep-water Mundau ' subbasin, effectively comprising a ParacuruParacuru petroleum system. The results have significant implications for petroleum exploration in the BEM by proposing a developed transitional petroleum system in the distal parts of northeastern Brazil. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000526969200003 |
WOS关键词 | TRANSFORM MARGINS ; BREAK-UP ; CONTINENTAL MARGINS ; GRAVITY TECTONICS ; CRUSTAL STRUCTURE ; SOUTH-ATLANTIC ; AMAZONAS BASIN ; FRACTURE-ZONE ; RIFT SYSTEM ; GULF |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/248726 |
专题 | 地球科学 |
作者单位 | 1.Univ Fed Ceara, Programa Posgrad Geol, Fortaleza, Ceara, Brazil; 2.Inst Fed Rio Grande do Norte, Natal, RN, Brazil; 3.Cardiff Univ, Sch Earth & Ocean Sci, 3D Seism Lab, Cardiff, Wales; 4.Univ Fed Ceara, Dept Fis, Fortaleza, Ceara, Brazil; 5.Univ Fed Ceara, Dept Engn Petroleo, Fortaleza, Ceara, Brazil |
推荐引用方式 GB/T 7714 | de Almeida, Narelle Maia,Alves, Tiago M.,Nepomuceno Filho, Francisco,et al. Tectono-sedimentary evolution and petroleum systems of the Mundau subbasin: A new deep-water exploration frontier in equatorial Brazil[J]. AAPG BULLETIN,2020,104(4):795-824. |
APA | de Almeida, Narelle Maia.,Alves, Tiago M..,Nepomuceno Filho, Francisco.,Sa Freire, George Satander.,Braga de Souza, Ana Clara.,...&da Silva Barbosa, Thiago Henrique.(2020).Tectono-sedimentary evolution and petroleum systems of the Mundau subbasin: A new deep-water exploration frontier in equatorial Brazil.AAPG BULLETIN,104(4),795-824. |
MLA | de Almeida, Narelle Maia,et al."Tectono-sedimentary evolution and petroleum systems of the Mundau subbasin: A new deep-water exploration frontier in equatorial Brazil".AAPG BULLETIN 104.4(2020):795-824. |
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