Over 20 years experience in Structural Geology, Geomechanics and Fractured Reservoirs within Oil Company asset and technical service teams and since 2016 through consultancy. We are flexible as to how we work to meet your needs - from short reviews to longer interpretation/modelling projects.

Structural Geology

Interpretation of an inversion structure at Kilve Pill, Somerset, UK.

  • We carry out structural interpretations on seismic data, well data and outcrops as opposed to simply a seismic interpretation to ensure that the interpretations are structurally valid. Routinely we check fault intersections at wells to check for interpretation consistency. Structural interpretations across a range of scales from basin-wide to field scale.

  • Structural restorations at a variety of scales to validate structural interpretations and risk migration pathways etc.

  • Core logging of structures and intergration with petrophysical data and image logs to understand impact upon fluid flow.

Fractured Reservoirs

Network of joints in limestone, Kilve Pill, Somerset, UK

  • Full characterisation, including integration of static and dynamic data

  • Conceptual models, identifying fracture drivers to make an appraisal/development decision and feed fit for purpose models

  • Understanding the impact of the in-situ stresses upon natural fractures is key when planning appraisal and development wells - see section below.

  • Reviews of appraisal/development plans. Understanding of uncertainties, gap analysis, data acquisition.

Slip tendency displayed on faults in a N Sea Field

Slip tendency displayed on faults in a North Sea Field

Geomechanics

Elements of Fault Seal Analysis (Ogilvie et al. 2020)

  • Understanding the impact of the in-situ stresses upon natural fractures is key when planning appraisal and development wells.

  • We will ascertain the orientations and magnitudes of the in-situ stresses from available data such as breakouts and caliper logs and use commonly used measures such as slip tendency to ascertain productive direction. This can be calibrated with dynamic data and shear wave anisoptropy.

  • This type of analysis is also valuable for assessing fault reactivation and also has application in C02 reservoirs.

  • Data acqusition programmes/advice such as leak-off tests and that derived from sonic data.

Fault Seal Analysis

  • Full characterisation across range of scales in all reservoir types

  • Including core data from structural interpretation and integration with petrophysical data

  • 1D sensitivity plots, Allen diagrams

  • Reviews, data acquisition advice/planning