Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/05091918122 |
Geostatistical Earth modeling of cyclic depositional facies and diagenesis | |
Le Blevec, Thomas; Dubrule, Olivier; John, Cedric M.; Hampson, Gary J. | |
2020-03-15 | |
发表期刊 | AAPG BULLETIN
![]() |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2020 |
卷号 | 104期号:3页码:711-734 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | In siliciclastic and carbonate reservoirs, depositional facies are commonly described as being organized in cyclic successions overprinted by diagenesis. Most reservoir modeling workflows are not able to stochastically reproduce such patterns. Herein, a novel geostatistical method is developed to model depositional facies architectures that are rhythmic and cyclic, together with superimposed diagenetic facies. The method uses truncated Pluri-Gaussian random functions constrained by transiograms. Cyclicity is defined as an asymmetric ordering between facies, and its direction is given by a three-dimensional vector, called shift. This method is illustrated in two case studies. Outcrop data of the Triassic Latemar carbonate platform, northern Italy, are used to model shallowing-upward facies cycles in the vertical direction. A satellite image of the modern Bermuda platform interior is used to model facies cycles in the windward-to-leeward lateral direction. Because depositional facies architectures are modeled using two Gaussian random functions, a third Gaussian random function is added to model diagenesis. Thereby, depositional and diagenetic facies can exhibit spatial asymmetric relationships. The method is applied in the Latemar carbonate platform that experiences syndepositional dolomite formation. The method can also incorporate proportion curves to model nonstationary facies proportions. This is illustrated in Cretaceous shallow-marine sandstones and mudstones of the Book Cliffs (Utah), for which cyclic fades and diagenetic patterns are constrained by embedded transition probabilities. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000520042700009 |
WOS关键词 | CARBONATE PLATFORM ; BASIN ; DOLOMITIZATION ; SIMULATION ; PATTERNS ; SEDIMENTOLOGY ; ARCHITECTURE ; VARIABILITY ; MOUNTAINS ; SANDSTONE |
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/248738 |
专题 | 地球科学 |
作者单位 | Imperial Coll London, Earth Sci & Engn, London, England |
推荐引用方式 GB/T 7714 | Le Blevec, Thomas,Dubrule, Olivier,John, Cedric M.,et al. Geostatistical Earth modeling of cyclic depositional facies and diagenesis[J]. AAPG BULLETIN,2020,104(3):711-734. |
APA | Le Blevec, Thomas,Dubrule, Olivier,John, Cedric M.,&Hampson, Gary J..(2020).Geostatistical Earth modeling of cyclic depositional facies and diagenesis.AAPG BULLETIN,104(3),711-734. |
MLA | Le Blevec, Thomas,et al."Geostatistical Earth modeling of cyclic depositional facies and diagenesis".AAPG BULLETIN 104.3(2020):711-734. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论