气候变化领域集成服务门户(CCPortal): Geophysical well log-motifs; lithology; stratigraphical aspects and correlation of the Ordovician succession in the Swedish part of the Baltic Basin

CCPortal

DOI	10.1007/s00531-019-01712-y
	Geophysical well log-motifs; lithology; stratigraphical aspects and correlation of the Ordovician succession in the Swedish part of the Baltic Basin
	Erlström M.; Sopher D.
发表日期	2019
ISSN	14373254
起始页码	1387
结束页码	1407
卷号	108 期号:4
英文摘要	The geophysical characteristics of the carbonate-dominated Ordovician succession is described using wire-line logging data from exploration wells located within the Swedish part of the Baltic Basin, both offshore and from the island of Gotland. The petrophysical properties and log-motifs are compared and correlated with the lithology of cores from the Hamra-10, Skåls-1 and Grötlingbo-1 wells on southern Gotland. The 80–125-m-thick Ordovician succession is divided into five log stratigraphic units Oa–Oe, which are correlated throughout the study area. The proposed log stratigraphy and wire-line log characteristics are evaluated and compared with the established Ordovician stratigraphy from the adjacent areas of Öland, Östergötland and South Estonia. The newly established log stratigraphy is also linked to the existing seismic stratigraphic framework for the study area and exemplified with a selection of interpreted seismic type sections from Gotland and the south Baltic Sea. The presented characterization, division and correlation provide a basis for understanding the lateral and vertical variation of the petrophysical properties, which are essential in assessing the sealing capacity of the Ordovician succession, in conjunction with storage of CO2 in the underlying Cambrian sandstone reservoir. © 2019, The Author(s).
英文关键词	Carbonates; CO2-seal; Core descriptions; Gotland; OPAB dataset; Seismostratigraphy
语种	英语
scopus关键词	carbon dioxide; carbonate system; data set; geophysical method; hydrocarbon reservoir; lithology; sandstone; sediment core; seismic stratigraphy; well logging; Baltic Region; Gotland; Sweden
来源期刊	International Journal of Earth Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147839
作者单位	Geological Survey of Sweden, Kiliansgatan 10, Lund, 223 50, Sweden; Department of Geology, Lund University, Sölvegatan 12, Lund, 223 62, Sweden; Geological Survey of Sweden, Villavägen 18, Uppsala, 751 28, Sweden
推荐引用方式 GB/T 7714	Erlström M.,Sopher D.. Geophysical well log-motifs; lithology; stratigraphical aspects and correlation of the Ordovician succession in the Swedish part of the Baltic Basin[J],2019,108(4).
APA	Erlström M.,&Sopher D..(2019).Geophysical well log-motifs; lithology; stratigraphical aspects and correlation of the Ordovician succession in the Swedish part of the Baltic Basin.International Journal of Earth Sciences,108(4).
MLA	Erlström M.,et al."Geophysical well log-motifs; lithology; stratigraphical aspects and correlation of the Ordovician succession in the Swedish part of the Baltic Basin".International Journal of Earth Sciences 108.4(2019).