Mid-Norway Pressure Study

The recently updated offshore Mid Norway pressure study combines Ikon GeoPressure's extensive experience of overpressures in Mid Norway and elsewhere, with IHS's comprehensive high quality database to examine the distribution and impact of overpressure on the Mid Norway petroleum system.  The study has already been purchased by many operators in the area, as it provides key information on the timing of pressure development and its iinfluence on hydrocarbon trapping.  Key information is included on assessing and reducing risk associated with highly variable pressure and water depths in the Mid-Norway region.

The Mid Norway Pressure Study provides a comprehensive and authoritative picture of formation pressure distribution and provides an invaluable calibration to in-house pressure interpretations.  The result is a highly detailed study encompassing many facets of Mid Norway pressure.

If your company has exploration, development and/or production interests in the Mid-Norway you will benefit with:

• Reduced risk of experiencing unexpectedly high or low pressures.
• Associated time and cost savings.
• Identification of additional reserves.
• Improved understanding of the regional pressure regime

This significant study utilises over 197 wells out of a possible 225 wells (at the time of the study).  The high quality data used in its compilation provide a comprehensive and authoritative picture of formation pressure distribution, and its causes within Mid-Norway.  This gives valuable calibration to in-house pressure interpretations at prospect up to regional scale.

The study area includes the More and Voring Basins to the south, west and north-west, Halten Terrace and Trondelag Platforms to the east and the Vestfjorden Basin to the north-east.  The original study was completed in 2007 and updated in 2012.

Key Deliverables

• A complete description of subsurface pressures, backed by selected single-well pressure - depth plots, along with many multi-well plots by horizon and location.
• The distribution of overpressure, mapped out at 7 main horizons (Post Palaeocene (Brygge), Palaeocene (Tang and Tare), Upper Cretaceous (Springar, Nise and Kvitnos), Lower Cretaceous (Lysing, Lange and Lyr), Upper Jurassic (Spekke and Melke), Lower/Middle Jurassic (Garn, Ile, Tilje and Are) and Triassic) and displayed on a series of map enclosures, coupled with maps of residual overpressures generated between the Lange Formation and the Lower/Middle Jurassic reservoirs and between the Garn, Ile, Tilje and Are Formations.
• A composite structure map of tectonic elements, based on a wide search of published data, integrated with all available pressure data to produce overpressure compartment maps.
• Four case studies, dealing with topics such as: lithostatic and fracture gradients, seal breach risking, pressure reversals and field scale studies, which illustrate the main characteristics of overpressure in Mid Norway.

Stratigraphic Horizons

• Post-Palaeocene (Brygge)
• Palaeocene (Tand and Tare)
• Upper Cretaceous (Springar, Nise and Kvitnos)
• Lower Cretaceous (Lange, LYsing and Lyr)
• Upper Jurassic (Spekk and Melke)
• Lower/Middle Jurassic (Garn, lle, Tilje and Are) Triassic

Key features:

• The dramatic contrasts in pressure regimes found in Jurassic/Triassic reservoirs are explained.
• The influence of glacial loading/unloading is related to seal breach as well as non-eguilibrated fluids in some hydrocarbon fields.

The study is available hard-bound in A4 format (with enclosures) and GIS Shape files on CD.  A presentation of the summary and conclusions from the final technical review is also on CD.

Complete our Pressure Study Request Form to find out more about purchasing your own copy of the Pressure Study of Mid-Norway.