Case Studies

North Sea Central Graben Pressure Study Phase 2

Written by Liza Yellott | Jul 13, 2026 2:27:27 PM

Introduction

Phase 2 of this study was completed in 2011, and it enhances the North Sea Central Graben 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

The maps in this study are based on data released up to 2009, and include:

  • 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.

Benefits and Deliverables