Introduction

This newly completed reservoir study on the Garn Formation provides an understanding of the major controls (e.g., depositional environments, diagenesis and burial depth) on reservoir quality. To test these relationships, a technically consistent, high quality database has been generated on cored sections at a range of burial depths (1660-4691m) in 31 wells across the Halten Terrace.

The intention of both this Garn study, and the Sub-Garn (Tilje, Tofte and Ile) project is for operator geoscientists to use these databases as predictive tools and as a reference to understand and model reservoir properties.

Garn Formation Halten Terrace Study Controls on Reservoir Quality of the Jurassic Petrostrat Map

Key Deliverables

  • 1:50 & 1:200 scale core descriptions; ~1,370m core from 31 wells with CPI
  • lithology/porosity
  • Analytical Program:
    • Petrographic descriptions of 120 thin sections
    • SEM analyses on 50 samples
    • XRD analyses on 50 samples
  • GIS summary maps for the J50, J60 & J70-100 time slices indicating facies & diagenetic
  • relationships with depth & reservoir quality, with hyperlinked core & sample descriptions
  • Core photographs illustrating sedimentological, ichnological & diagenetic features
  • Facies-coded CCA database

31 Garn wells included in this study

6406/2-36407/1-5S6506/12-66507/2-2
6406/2-66407/2-36506/12-76507/3-1
6406/3-16407/4-16506/6-16507/5-1
6406/3-36407/6-46506/9-26507/7-10
6406/3-46407/6-7S6507/10-26507/7-15S
6406/5-16407/9-16507/11-36507/7-8
6407/1-26407/9-46507/11-46507/7A-15A
6407/1-36407/9-86506/11-3

More information

For more information, please download our PDF flyer.

Garn Formation Halten Terrace Study Controls on Reservoir Quality of the Jurassic Petrostrat Example Data
Example Data

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