East Greenland Sampling

The NE Greenland shelf is a frontier area for oil exploration with a high potential for hydrocarbon accumulations (USGS, 2007). Without any exploration well, the understanding of the offshore geology is based on correlating the onshore areas with the seismic data. Therefore new geological data were greatly needed to constrain the seismic data over the proposed blocks in the 2012-2013 licensing round, as well as completing work commitments following the license awards.

East Greenland Sampling - 2018 Merge 

Edited by Stephane Polteau, Adriano Mazzini, Sverre Planke, and
Reidun Myklebust.

This report presents the integrated interpretation of seismic data with the seep and stratigraphic results acquired during the EGS11, EGS12 and EGS16 seafloor sampling surveys completed in the region.

In total, 190 m of sediments cores were collected from 164 gravity core sampling stations based on TGS seismic data interpretation. The core samples targeted seep structures for organic geochemistry, and truncated strata for stratigraphic studies. Additional stratigraphic samples were recovered from escarpments using a dredge along 16 profiles across several outer marginal highs near the shelf edge.

The EGS18M report helps to constrain the interpretation of seismic data, basin development models with timing of oil generation, expulsion, migration and trapping mechanism, and to focus exploration efforts over specific targeted closures. In addition, the results presented here are directly relevant for exploring the conjugate SW Barents Sea and mid-Norway margin where pre-breakup Mesozoic successions are either deeply buried or covered by extensive basalt successions.

The digital data delivered with this report include each cruise reports, raw and processed geochemical and geophysical data, and unedited lab interpretation reports.

The individual EGS11, EGS12 and EGS16 sampling reports are also available separately:

East Greenland Sampling Project 2016

Edited by Stephane Polteau, Adriano Mazzini, and Sverre Planke.

Fourty sampling locations targeting key structures and potential hydrocarbon seeps in Block 3 on the NE Greenland shelf:

  • 40 gravity cores
  • Stratigraphic tie to seismic in the northwestern corner of Block 3
  • Standard (APT), Amplified (AGI) and Microbial (MPOG) seep analyses identified maturity and age of the oil
  • Source and reservoir rock evaluation and age determination

East Greenland Sampling Project 2012

Edited by Stephane Polteau, Adriano Mazzini, and Sverre Planke.

Ninety-four sampling locations targeted key structures and potential hydrocarbon seeps on the NE Greenland shelf:

  • 87 gravity cores and 7 dredges
  • Pseudo-well and stratigraphic tie to seismic in the southern Danmarkshavn Basin and outer Thetis Basin
  • Standard (APT) and amplified (Gore) seep analyses identified maturity and age of the oil
  • Source and reservoir rock evaluation, and age determination

East Greenland Sampling Project 2011

Edited by Stephane Polteau, Adriano Mazzini, Mikal Trulsvik, and
Sverre Planke.

Forty-six sampling locations targeted key structures and potential hydrocarbon seeps on the NE Greenland shelf:

  • 37 gravity cores and 9 dredges were recovered
  • Pseudo-wells and stratigraphic tie to seismic in the northern Danmarkshavn Basin and in the outer Thetis Basin
  • Active hydrocarbon seeps have been identified and biomarkers provide age of source
  • Source and reservoir rock evaluation, and age determination

CONTENTS


Executive Summary

Introduction

  • Background and Aims
  • Presentation of Results
  • Geological Framework

Operations

  • Overview
  • M/V Sermilik II
  • Coring Sites
  • Deployment and Recovery Procedures
  • Summary

Explanatory Notes

  • Navigation and Depth
  • Sample Handling
  • Sample Description
  • Geochemistry
  • Biostratigraphy

Results

  • Sedimentology
  • Organic Geochemistry
  • Biostratigraphy

Summary and Conclusions

References

Appendices

  • Core and DredgeDescriptions
  • ScopeofWork
  • Original Lab Reports

Gas flares in the water column imaged in SBP data.

EGS11 (white), EGS12 (yellow) and EGS16 (red) sampling sites.

Seismic data showing the most common types of sampling targets, with corresponding bathymetry and sub-bottom
profiler data examples.

 

Ice braker for EGS16 operations

EGS11 transit in freezing conditions.  

 Sermilik II during the EGS12 survey.