DHI Interpretation and Prospect Risking

This course explores the theory and methodology of seismic Direct Hydrocarbon Detection Interpretation (DHI) including discussion of the various techniques, their strengths, weaknesses, and pitfalls. Over the past decade, Rose has led an industry consortium to develop a DHI interpretation work process guide and educational tool to help assess the seismic amplitude anomalies that lead to probability assignments and resource potential uncertainty. The methodology (in software called SAAM) to evaluate all AVO class amplitude anomalies will be described including basic risk analysis definitions and analysis, prospect exploration settings, seismic and rock physics data adequacy, and numerous anomaly characteristics. Prospect examples and associated probabilities of geological success are examined. Trends and “lessons learned” from the drilled prospects in the database will be reviewed in a qualitative and quantitative manner. This course is typically taught over two or three days.

Course Outline

01. Introduction to DHI Evaluation and DHI Workflow

02. Review of DHI and AVO Technology

03. DHI Characteristics: Concepts, Examples and Learnings

04. DHI Volumetrics

05. DHI/SAAM Workflow and Tutorials

06. Setting Final Pg – DHI vs. Traditional Geological Approach

07. Prospect Examples – Review and SAAM Analysis

08. Wrap-up: Lessons, Summary, Course Evaluation

Who Should Attend

This course is intended for geoscientists, engineers, commercial team members, and managers charged with evaluating exploration opportunities in seismic Direct Hydrocarbon Indicators (DHIs).

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