From Qualitative to Quantitative Interpretation

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Course Content

This e-symposium presentation places the interpretation of deep-water turbidites discernible in 3-D seismic inversion data within a geological context. It will include multiple case studies, four of which are located in the Gulf of Guinea (one Pliocene plus Cretaceous examples). One such case study (undisclosed location) features a reservoir characterization technique that facilitates calibration of elastic attributes to sand. The remainder of the workshop will focus on interpretation of seismic anomalies to predict prevailing fluid type(s). This tutorial will also offer suggestions for visualization of quantitative results.

Description

The interpretation of deep-water turbidites discernible in 3-D seismic inversion data within a geological context.

Specific aspects to be covered include the following:

  • Integrated analysis of geophysical data
  • Challenges in interpreting deep-water turbidites
  • Pitfalls

Seismic Data Conditioning: Why conditioning of seismic amplitude data matters – taking a quick look at your gathers, stacks and attributes

Types of 3-D seismic inversion techniques
Calibrating elastic attributes to reservoir sand
Techniques for placing attributes from simultaneous inversion into a viable geological context

Example 1: Gulf of Guinea (Pliocene)
Example 2: Gulf of Guinea (Cretaceous): Joint interpretation of impedances
Example 3: Gulf of Guinea (Cretaceous): QI using Fundamental Statistics
Example 4: Gulf of Guinea (Cretaceous):

a. Elastic data versus compaction effect;
b. Quantitative interpretation using rock physics;
c. Facies classification

Estimated Time
53 minutes of video lectures

 

 

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