--> Abstract/Excerpts: Integrating Basin Modelling with Geophysical Methods, by Hans Martin Helset, Zhijun Du, and Erling Fjær; #120098 (2013)
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Abstract/Excerpt

Integrating Basin Modelling with Geophysical Methods

Hans Martin Helset¹, Zhijun Du², and Erling Fjær²
¹SINTEF Petroleumsforskning AS, Stavanger, Norway
²SINTEF Petroleumsforskning AS, Trondheim, Norway

This abstract presents an approach and work flow for integrating basin modelling methods with geophysical exploration methods. In the exploration phase, seismic and electromagnetic data can be inverted for sediment velocity and resistivity. Using Previous HitrockNext Hit Previous HitphysicsNext Hit models, the velocity and resistivity data can be interpreted to give a prediction of porosity and hydrocarbon saturation in the prospect location. Basin modelling on the other hand is used to model sedimentation, compaction, temperature history, source Previous HitrockNext Hit maturation and hydrocarbon migration through geological time, and to give an independent prognosis of hydrocarbon saturation in the prospect location. Traditionally geophysical methods and basin modelling have been applied separately. We have investigated methods for integrating basin modelling with geophysical methods to obtain an integrated and consistent exploration work flow. By constraining the Previous HitrockNext Hit Previous HitphysicsNext Hit modelling by basin modelling results, and constraining the basin model by the results of Previous HitrockNext Hit Previous HitphysicsNext Hit modelling, we attempt to improve the accuracy and reduce the uncertainty of estimated reservoir Previous HitrockNext Hit and fluid properties. The objective is to obtain an integrated prospect prediction. This approach can result in meaningful integration and a significant reduction of exploration risk compared to studies where Previous HitrockNext Hit Previous HitphysicsNext Hit and basin modelling are not linked. The integrated approach will also add value to situations where either the Previous HitrockNext Hit Previous HitphysicsNext Hit approach or the basin modelling approach are less sensitive on their own.

Basin modelling can provide constraints to the Previous HitrockNext Hit Previous HitphysicsNext Hit analysis in several ways:

  1. Burial history and temperature history
    • Mechanical compaction and sediment diagenesis (quartz cementation in sandstones, Smectite illitization in shales)
  2. Hydrocarbon migration
    • Hydrocarbon saturation in the prospect from source Previous HitrockTop maturation and hydrocarbon migration

AAPG Search and Discovery Article #120098©2013 AAPG Hedberg Conference Petroleum Systems: Modeling the Past, Planning the Future, Nice, France, October 1-5, 2012