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DHI Consortium

Rose & Associates’ DHI Interpretation and Risk Analysis Consortium brings together practitioners throughout the oil & gas industry to capture state-of-the-art practices in both the technical evaluations of DHI prospects and the technologies within the framework of a consistent workflow in order to produce a better overall DHI Prospect risking and valuation.

The Consortium, founded in 2001, arose out of a series of conversations between R&A founder Pete Rose and future Consortium founder Mike Forrest. They identified a need within the industry when risking DHI-driven prospects, and sought to create a consistent approach with associated workflows for ‘de-risking’ these prospects.

Today, over 20 years later, the Consortium’s members meet either times annually to address DHI evaluation and share their learnings in a confidential environment. The Consortium has also built a seismic amplitude anomaly interpretation and risk analysis application called SAAM (Seismic Amplitude Analysis Module). The SAAM software is used to risk seismic amplitude anomalies in all four AVO classes, and is continually improved by adding to its large prospect database (currently consisting of over 350 drilled DHI prospects).

The Consortium Goals are to:
  • Address seismic amplitude anomalies, the data behind the anomalies, and their impact on prospect assessment.
  • Design process improvements in the SAAM software to characterize seismic amplitude anomalies in a consistent, systematic, and thorough manner.
  • Calibrate the assessments with documented occurrences of recoverable hydrocarbons in the subsurface and failures through prospect reviews. Prospect reviews are the highlight of the consortium meetings; members present prospect technical data, and after detailed discussion and risking by all members, the drilling result is disclosed. This is a great learning experience for all. The prospect information, including recognizing the discussion and questions by consortium members, is inputted into the SAAM prospect database.
The Consortium consists of two Chapters of oil and gas companies.

​U.S. Chapter: We normally have four or five one-day meetings per year in Houston (subject to COVID restrictions).

European Chapter:  We normally have three two-day meetings per year in Europe (subject to COVID restrictions).

Both U.S. and European chapters contribute to and share the SAAM prospect database.  Members may send representatives to either or both Houston and European meetings. In 2020, we successfully shifted to virtual webinars in lieu of in-person meetings and have continued with webinars as an added benefit now that live meetings have resumed.

Consortium Meetings: see schedule below

Peer Group Prospect Reviews (a unique learning experience)

  • Prospect technical presentations and discussions, followed by entry into the SAAM software, consensus on Final Pg (DHI), and finally presentation and discussion of the drilling results
  • Consortium members contribute the prospect presentations
  • Representing prospects from around the world in all AVO classes
  • Discussions and presentations on important technologies to properly risk prospects

Database Analysis (difficult to duplicate in the Industry)

  • Reasons for success and failure
  • Detailed analysis of AVO Class 3 and 2 anomalies
  • Select studies of AVO Class 1 and 4 anomalies
  • Use SAAM prospect database to estimate a calibrated Final Pg based on a calculated probability of geological success, and DHI Index determined from observations of the seismic data on new DHI propsects

Software Modifications and Database Studies Acknowledgements

​Rose & Associates, LLP thanks the 82 oil companies who have participated in the DHI Consortium phases over the last 20 years. Current membership is 36 companies. If your organization is interested in joining the consortium, please contact Henry Pettingill.

Learn more about our DHI training course.

FAQ List

Q: What is the cost to join the U.S./European groups in the DHI Consortium?​

A: The U.S./European Consortium fee is $35,000. New members must purchase SAAM software (final product of the previous phase). Each phase of the consortium is 12 months on a calendar basis.

Q: Can I purchase SAAM software separate from joining the consortium?

A: Yes – at a cost based on oil company annual production (or equivalent). The prospect database is not included in software sales outside the Consortium. There is no maintenance fee – SAAM maintenance and upgrades are done in the Consortium.