Pressure Studies» North Sea Central Graben Pressure Study Phase 2

North Sea Central Graben Pressure Study Phase 2

Completed: 2011

The Phase 2 study enhances the North Sea Central Graban Pressure Study Phase 1 by integrating full 3D seismic coverage to supply:

Better definition of pressure compartments.
Evidence for fluid escape in and around breached traps.
Structural definition relative to well position and the location of seal failure.

Study area

Benefits

Integration of well and seismic data for strengthened confidence in the resulting model.
Improved knowledge of sub-Chalk compartments and pressures.
Predictive algorithms for fracture gradients and overburden for the entire basin.
Improved definition of seal breach risk.

Deliverables

Maps from Phase 1 updated with an additional 300 E&A wells provided by IHS.
Integration of seismic data supplied by PGC in the form of a comprehensive overpressure compartment map for Jurassic and Triassic intervals.
A risking strategy for seal breach (hydraulic top-seal failure) using structural crestal depths derived from seismic data.
Effective stress maps at Base Chalk and Base Cretaceous and an assessment of seal breach in undrilled areas.
A discussion of vertical fluid flow and leakage above traps and faults.
A reassessment of stratigraphic position for pressure data in the Palaeocene.

Highlights of Phase 1 and Phase 2 studies

Phase 1 Maps based on data released up to 2004. Contains five case studies, including recognition of hydrodynamic reservoirs, fault seal failure and leak points	Phase 2 Maps based on data released up to 2009. Includes an effective stress map to show areas of potential seal breach. New definition of Jurassic/Triassic pressure compartments

Phase 2 is a complementary study and does not replicate the five case studies of Phase 1. Phase 1 and Phase 2 studies are available separately. Alternatively, they may be purchased together as a complete package. Complete our Pressure Study Request Form to find out more about purchasing your own copy.

Reap the benefits:

Regional model strengthened by seismic data
Improved understanding of sub-chalk compartments and pressures
Improved definition of seal breach risk

You get a bound copy of the report plus a CD with the interpreted data.

The North Sea Graben Pressure Study Phase 1 can be purchased together with the North Sea Graben Pressure Study Phase 2 or as a separate package. To enquire about ordering your own copy, or any of Ikon GeoPressure's regional pressure studies, contact Steve Jenkins:

Tel: +44 (0) 191 3846587
Email: sjenkins@ikonscience.com

Or complete our Pressure Study Request Form, and we'll get back in touch with you.

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