Geostatistical Quantification of Geological Information for a Fluvial-type North Sea Reservoir

1999 ◽  
Author(s):  
Jef K. Caers ◽  
S. Srinivasan ◽  
Andre G. Journel
Keyword(s):  
North Sea ◽  
Geological Information

scholarly journals Stratigraphie architecture of the Upper Cretaceous and Cenozoic along the southern border of the North Sea Basin in Belgium

2004 ◽  
Vol 83 (3) ◽  
pp. 155-171
Author(s):  
N. Vandenberghe ◽  
S. Van Simaeys ◽  
E. Steurbaut ◽  
J.W.M. Jagt ◽  
P. J. Felder
Keyword(s):  
North Sea ◽  
Late Cretaceous ◽  
Upper Cretaceous ◽  
Control Mechanisms ◽  
Time Intervals ◽  
The North ◽  
Tectonic Events ◽  
Geological Information ◽  
The North Sea ◽  
Southern Border

AbstractThe Late Cretaceous and Cenozoic sedimentary record in the Campine Basin along the southern border of the North Sea Basin is analysed in terms of sequence stratigraphy. All available biostratigraphic, and in some cases, magnetostratigraphic data are used to constrain the sequence chronostratigraphy. The relative geographic extent of the strata is used as an indication of the relative sea level. Tectonic and eustatic components could be distinguished in several cases using regional geological information. Generally, sequences consist of transgressive and highstand systems tracts only and have flat, abrasion-type lower boundaries. Lowstand deposits are only identified as infill of erosional space, which generally implies marked tectonic uplift. Several eustatic and tectonic events can be correlated with similar events known elsewhere in the North Sea Basin. The time intervals spanned by the different sequences vary considerably, pointing out different control mechanisms.

The integration of public domain lithostratigraphic data into a series of cross-border North Sea well-penetration maps

2020 ◽  
pp. SP494-2020-25
Author(s):  
Henk Kombrink ◽  
Stefano Patruno
Keyword(s):  
North Sea ◽  
Public Domain ◽  
Petroleum Exploration ◽  
The Public ◽  
Cross Border ◽  
The North ◽  
Starting Point ◽  
Geological Information ◽  
Paper Form ◽  
The North Sea

AbstractAs geological information about the North Sea is increasingly made available to the public, there is great potential to build cross-border datasets to enable people to more rapidly filter relevant geological data and also to better understand and further study the subsurface. This paper discusses the construction of such a geological database and presents the associated map set. Public domain lithostratigraphic data from petroleum exploration and appraisal wells drilled in the Norwegian, Danish, German, Dutch and UK North Sea sectors were used to create a series of 13 well-penetration maps, ranging from Basement to Eocene age. In order to produce the maps, lithostratigraphic well tops had to be translated into a chronostratigraphic scheme, followed by building a database and subsequent mapping in a GIS. Three well categories were used for each of the maps: wells that (1) fully penetrate a chronostratigraphic interval, (2) prove it is absent or (3) reach total depth in the interval under consideration. The resulting maps, which will all be discussed and presented in this paper, form a starting point for multiple types of (petroleum) geological screening studies. The North Sea database is freely available in QGIS format and can be easily imported into any geospatial software platform.

scholarly journals Stratigraphic architecture of the Upper Cretaceous and Cenozoic along the southern border of the North Sea Basin in Belgium

2004 ◽  
Vol 83 (3) ◽  
pp. 155-171 ◽  
Author(s):  
N. Vandenberghe ◽  
S. Van Simaeys ◽  
E. Steurbaut ◽  
J.W.M. Jagt ◽  
P.J. Felder
Keyword(s):  
North Sea ◽  
Upper Cretaceous ◽  
Control Mechanisms ◽  
Time Intervals ◽  
The North ◽  
Tectonic Events ◽  
Stratigraphic Architecture ◽  
Geological Information ◽  
The North Sea ◽  
Southern Border

AbstractThe Late Cretaceous and Cenozoic sedimentary record in the Campine Basin along the southern border of the North Sea Basin is analysed in terms of sequence stratigraphy. All available biostratigraphic, and in some cases, magnetostratigraphic data are used to constrain the sequence chronostratigraphy. The relative geographic extent of the strata is used as an indication of the relative sea level. Tectonic and eustatic components could be distinguished in several cases using regional geological information. Generally, sequences consist of transgressive and highstand systems tracts only and have flat, abrasion-type lower boundaries. Lowstand deposits are only identified as infill of erosional space, which generally implies marked tectonic uplift. Several eustatic and tectonic events can be correlated with similar events known elsewhere in the North Sea Basin. The time intervals spanned by the different sequences vary considerably, pointing out different control mechanisms.

scholarly journals Geological steering of horizontal wells in chalk reservoirs Examples from the Danish North Sea

1994 ◽  
Vol 41 ◽  
pp. 138-144
Author(s):  
M. W. Jeppesen
Keyword(s):  
North Sea ◽  
Seismic Data ◽  
Horizontal Wells ◽  
Low Permeability ◽  
3D Seismic ◽  
Well Performance ◽  
Rigorous Evaluation ◽  
Geological Information ◽  
Logging While Drilling ◽  
3D Seismic Data

The reservoir position of horizontal wells drilled in low permeability chalk reservoirs is of vital importance for the well performance. Accurate placement of horizontal wells drilled in the low permeability chalk fields in the Danish North Sea is being achieved by rigorous evaluation of geological information acquired during drilling. The tools which are being utilized for geological steering of horizontal wells comprise: High resolution biostratigraphy, Logging While Drilling, shows evaluation and analysis of 3D seismic data. Examples from the Dan, Kraka, Skjold and Tyra fields illustrate the current applications of geological steering in chalk reservoirs.

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