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FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil Lecture 9.

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Presentation on theme: "FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil Lecture 9."— Presentation transcript:

1 FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil Lecture 9

2 FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil Explorations Task SuccessUneconomic Drill Wildcats Assess Prospects Drop Prospect Confirmation Well SuccessFailure Interpret Seismic Data Process Seismic Data Acquire Seismic Data Capture Prime Areas Identify Opportunities To Development Or Production

3 FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil Remainder of this Course Seismic Interpretation and Beyond … Develop a Geologic Framework Apply the Geologic Framework to Prospecting (Exploration) Given our time constraints, we will only be able to look at a subset of the concepts, procedures and tools that geologist and geophysicists use in the exploration phase of the oil & gas industry

4 FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil Workflow: Overview 1. Geologic Framework2. Data Analysis3. Prospect Elements4. Prospect Assessment We can subdivide the exploration work process from seismic interpretation forward into 4 major elements Modules provide some details on each of these basic elements

5 FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil Geologic Framework Structural Interpretation Faults & Folds Subsidence & Uplift Structural Trends Structural Features Stratigraphic Interpretation Unconformities Stratal Packages Environments / Facies / Lithologies Ages Using all available data (wells, seismic, outcrop, regional studies, gravity, magnetics, etc.) build a framework of present-day structure and stratigraphy

6 FWS 04

7 L 9 – Overview Interpretation Courtesy of ExxonMobil Applying the Framework for Prospecting 1.Data Analysis Present-day conditions - How things are now Basin reconstruction - How things evolved 2.Prospect Elements Individual elements: Source, Migration, Reservoir, Trap, Seal Favorable juxtaposition of all elements 3.Prospect Assessment Likely HC volumes in the success case Risking - How likely is the success case?

8 FWS 04 L 9 – Overview Interpretation Courtesy of ExxonMobil The Alpha and Beta Prospects Reservoir Seal Source Basement Overburden AlphaBeta For Modules 12 through 14, we use two hypothetical leads: Alpha and Beta. Should we propose that we drill either or both? Sea Water


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