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| DOI | 10.1306/02251917408 |
| A review of producing fields inferred to have upslope stratigraphically trapped turbidite reservoirs: Trapping styles (pure and combined); pinch-out formation; and depositional setting | |
| Amy L.A.; Amy L.A. | |
| 发表日期 | 2019 |
| ISSN | 0149-1423 |
| 起始页码 | 2861 |
| 结束页码 | 2889 |
| 卷号 | 103期号:12 |
| 英文摘要 | Siliciclastic turbidite systems that pinch out updip toward their proximal margin are prime targets for hydrocarbon exploration, especially in deep-water basins. Such "upslope stratigraphic traps"potentially offer large-volume discoveries but have significant geological risks, notably because of ineffective closure or containment. In the published literature, at least 20 fields from 11 basins globally with 6-7 billion BOE of cumulative discovered reserves have been inferred to be reliant on upslope pinchout traps. These fields are reviewed in terms of their interpreted trapping styles, pinch-out formation process, and depositionaltectonic setting. Reservoirs display a range of upslope trapping styles, including pure (depositional and erosional) stratigraphic pinch-outs and combined stratigraphic-structural traps. In one-third of cases, faulting appears intimately linked to updip trapping, either through offsetting slope feeder conduits or assisting pinch-out development, and in some cases, faulting may be the most important updip trapping element. Sediment bypass and erosion in proximal areas is the most common inferred pinch-out formation mechanism. Some reservoirs also demonstrate the ability of erosional truncation by mud-prone channels and mass transport deposits to form viable stratigraphic traps and seals. Encouragingly for exploration, robust pinchout traps occur in various tectonic settings on a variety of different slope types and positions along the slope profile.Most large-volume discoveries to date, however, are restricted to the toe-of-slope environment in graded passive margins or out-of-grade rift and transform margin settings. Insights into the nature and occurrence of upslope stratigraphic traps are important for future exploration, especially for evaluating new license areas and risking prospects. © 2019 The American Association of Petroleum Geologists. All rights reserved. |
| 语种 | 英语 |
| scopus关键词 | Deposition; Erosion; Faulting; Petroleum prospecting; Depositional setting; Formation mechanism; Hydrocarbon exploration; Mass transport deposit; Siliciclastic turbidites; Slope environments; Tectonic settings; Turbidite reservoirs; Stratigraphy; deep water; depositional environment; erosion; faulting; field method; hydrocarbon exploration; hydrocarbon generation; hydrocarbon reservoir; oil field; siliciclastic deposit; trapping; turbidite |
| 来源期刊 | AAPG Bulletin
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/143744 |
| 作者单位 | Irish Centre for Research in Applied Geosciences, School of Earth Sciences, University College Dublin, Dublin, Ireland; Leeds Turbidite Research Group, School of Earth and Environment, University of Leeds, Leeds, United Kingdom |
| 推荐引用方式 GB/T 7714 | Amy L.A.,Amy L.A.. A review of producing fields inferred to have upslope stratigraphically trapped turbidite reservoirs: Trapping styles (pure and combined); pinch-out formation; and depositional setting[J],2019,103(12). |
| APA | Amy L.A.,&Amy L.A..(2019).A review of producing fields inferred to have upslope stratigraphically trapped turbidite reservoirs: Trapping styles (pure and combined); pinch-out formation; and depositional setting.AAPG Bulletin,103(12). |
| MLA | Amy L.A.,et al."A review of producing fields inferred to have upslope stratigraphically trapped turbidite reservoirs: Trapping styles (pure and combined); pinch-out formation; and depositional setting".AAPG Bulletin 103.12(2019). |
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