NORWAY · LITHOSTRATIGRAPHY · GROUP
Fladen Gp
Fladen Gp is a group on the Norwegian shelf. 1 wellbore has a top filed in it, at a median of 4,162 m along the wellbore.
- 1
- wellbores with a top
- 4,162
- m median top · 4,162 to 4,162 for the middle 80%
- 0
- wellbores cored in it
- 0
- m of core
SODIR FACTPAGES · DEPTHS ALONG THE WELLBORE · NORTH SEA 1
Every wellbore with a top in Fladen Gp →
Units within it
- Rattray Fm → 1 wellbores
Latest wellbores to meet it
BY ENTRY DATE
| Wellbore | Top, m | Base, m | Operator | Field | Entered |
|---|---|---|---|---|---|
| 15/8-1 | 4,162 | 4,300 | Den norske stats oljeselskap a.s | Utgard | Jul 18, 1981 |
Description
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
Name From the Fladen Ground Spur, a structural feature.
Type area The group is typically developed in the UK sector of the Central North Sea particularly in the area between the Piper and Forties oilfields.
Thickness Within the volcanic province the thickest section penetrated so far is 1100 m and in this well the base of the volcanic was not reached. A considerable amount of thickness information was presented by Howitt and others (1975).
Lithology The group embraces both volcanic and non-volcanic formations. Therefore the group contains a wide range of lithologies including basalts, tuff agglomerates, and normal continental to shallow water sediments.
Boundaries The group normally rests on pre-Jurassic rocks, frequently Triassic sediments, and the lower boundary is marked either by the incoming of igneous rocks or the change from Triassic continental sediments to paralic sediments containing tuff horizons. The upper boundary is the contact with the marine sediments of the Humber Group. The Piper or Kimmeridge Clay formations may overlie the Fladen Group and in some sections the Heather Formation may be present but as noted earlier the complex interdigitations of the component formations of the Humber Group are not precisely known for this part of the Central North Sea.
Distribution
This unit on Sodir FactPages →
About this data
Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Tops and cored lengths are the Directorate's, per wellbore and unit; the percentiles are computed from those tops and are depths along the wellbore, not true vertical depth.
Developers: this page as JSON is GET /v1/data/norway/formations/fladen-gp, documented in the API reference.