A Pyramid Scheme: Integrating Petroleum Systems Analysis into Probabilistic Petroleum Resource Assessments

  • Kirk G. Osadetz
  • Zhuoheng Chen
Conference paper
Part of the Lecture Notes in Earth System Sciences book series (LNESS)


Petroleum supply has been transformed by innovations including horizontal drilling and multiple-stage hydraulic fracturing applied to low permeability reservoirs. These new commercial resources present a challenge to petroleum valuation and resource assessment. Shale-hosted petroleum resources are often inferred “continuous” and amenable to “unit-cell” resource assessment methods. However, commercial reservoirs are generally not shale and the resources are demonstrably not “continuous”. Shale-hosted petroleum resources typically have large amounts of discovery history and well data such that unconventional accumulations can be identified in wells. By introducing more diverse exploration history data combined with petroleum system constraints on contingent accumulations in combination with geographically based probabilistic resource assessment methods we develop an alternative method for assessing shale-hosted petroleum resources. A benefit of the proposed method is that it indicates where overpressures, which are a source of reservoir energy, occur.


Discovery Sequence Drill Stem Petroleum System Resource Volume Petroleum Accumulation 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Geological Survey of Canada: CalgaryNW, CalgaryCanada

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