Now available: Barents Sea Charge Study

Barents Sea Charge Study

Migris has been conducting a hydrocarbon maturation, generation, migration, and leakage simulation study of the southern Norwegian Barents Sea. It is built upon our in-house Migri simulator technology and seismic interpretations from the PGS Barents Sea MegaProject.

Migri is a “next generation 3D hydrocarbon migration simulator” which enables the evaluations of multiple alternative scenarios and sensitivities. Burial, maturation, generation, migration, and leakage are dynamically modelled through time in each scenario for a full 3-D basin model with 15 stratigraphic layers.

Onset time of HC generation (Ma).

Onset time of HC generation (Ma).

Probabilistic approaches applied
In this study probabilistic approaches have been applied in the numeric description of the source rock models (Cretaceous, Jurassic, Triassic and Permian source rock units, in figure below), in the thermal history, hydrocarbon generation, migration and leakage modelling.

Database of 90 wells
A database of 90 wells has been used for the construction of the source rock model and maturity model calibration. A high-resolution OF-Mod source-rock model for Hekkingen in the Hammerfest Basin is included. All hydrocarbon migration models were calibrated to existing discoveries in the area, and best-fit “base case” models have been deduced.

Geological layer model with lithologies.

Geological layer model with lithologies.

3

Monte Carlo simulation
Model sensitivities and key uncertainties are investigated through a Monte Carlo simulation technique and alternative migration and filling scenarios are presented.

High resolution
All key results are available as digital maps and compiled report documents. The results from the sensitivity analysis and probabilistic basin modeling work is available at a lateral resolution of 800 m. Results from the “base case” migration model runs are available at 400m lateral resolution.

Modelled maturity windows (left), HI, TOC source rock properties (middle) and flowrate (green=oil, yellow-red=gas, right) are important results from the project.

Modelled maturity windows (left), HI, TOC source rock properties (middle) and flowrate (green=oil,
yellow-red=gas, right) are important results from the project.

Seismic interpretations provided by PGS

The project results will be useful in assessing where to explore for prospective areas and elaborately contribute to the comprehension of the hydrocarbon charge systems in the region. Still, these results may be exploited further as copious input to your own dataset for detailed modelling of a licensed area or future prospect evaluation. Migris is the operator of this project and PGS has provided seismic interpretations as TWT maps. The project content includes:

1. Geological model building and calibration data compilation.
2. Calibration of hydrocarbon maturities and creation of generation histories.
3. Calibration of migration scenarios that can explain fields and discoveries.
4. Uncertainty investigations with elaboration of alternative migration scenarios in different areas.

Study area with location of well data. Reporting will show the results for displayed AOI, which is subdivided into areas A, B1, B2 and B3.

Study area with location of well data. Reporting will show the results for displayed AOI, which is subdivided into areas A, B1, B2 and B3.

Deliverables
A report will be delivered in digital format (PDF/Microsoft Word/PowerPoint documents and some 3D animations). The final report highlights the methodology employed in each of the four work tasks. Important results are exported as grid files and included as project deliverables.

Database not included
The database used in the project will not be included as a deliverable. All seismic data and interpretations can be licensed separately from PGS. The underlying complete Migri model (in depth domain) may also be purchased separately.

Project results are offered for purchase from December 2014 onwards. 

PDF leaflet about the study:

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