N049 Seismic Attributes for Exploration and Reservoir Characterisation

Course Facts

Course Code:
N049
Duration:
5 days
Type:
Classroom
CEU:
4.0 Continuing Education Units
PDH:
40 Professional Development Hours
Certificate:
Certificate Issued Upon Completion

Summary

Through lectures and pc-based exercises, students will gain the skills required to select and apply a broad range of seismic attributes including combined attributes in exploration and reservoir characterization projects. Lecture and exercise materials cover interpretation workflows using attributes currently available on most modern workstations as well as recently developed seismic applications designed to extract the smaller scale geologic details required for the construction of reservoir models. 

Duration and Training Method

This is a five-day classroom course using lectures, data examples, case studies, and exercises.

Participants will learn to:

  1. Review seismic wave fundamentals including the convolutional model, tuning, phase and understand the importance of maximizing seismic bandwidth.
  2. Assess the role of post stack attribute tools commonly found in most workstation software in seismic interpretation workflows. Examples include the use of max/min amplitude, instantaneous frequency/phase, curvature, coherency and dip/azimuth attributes as structural or stratigraphic indicators.
  3. Evaluate the role of AVO (amplitude vs. reflection angle) measurements to address specific interpretation problems including fluid prediction and the estimation of elastic rock properties.
  4. Investigate the use of spectral enhancement attributes such as Sparse Layer Inversion in interpretation workflows.
  5. Appraise the use of geo-statistical tools, spectral decomposition, and multi-attribute analysis in reservoir characterization.
  6. Recognize the limitations of AVO tools, post stack inversion, and other seismic attributes.
  7. Develop fit-for-purpose interpretation workflows for several exploration and production problems in the classroom.

Introduction

Review of seismic imaging fundamentals

  • Rock physics
  • Seismic wave propagation
  • The convolutional model & reflectivity
  • Factors affecting seismic resolution
  • Benefits of 3-D imaging

 Overview of commonly used seismic attributes

  • Amplitude attributes
  • Complex trace attributes
  • Spatial attributes
  • Post stack seismic inversion
  • Spectral decomposition
  • Isochron & residual maps

Visualization tools

Elastic response attributes

  • AVO
  • Lambda-mu-rho
  • Elastic impedance
  • Direct hydrocarbon indicators

Spectral enhancement/extension

Reservoir characterization

  • Cross plot analysis
  • Multi-attribute analysis
  • Neural networks
  • Geostatistical analysis
  • Validation and significance testing

Interpretation workflow presentations by class

Who should attend

This course has been designed for geoscientists possessing; 1) a basic understanding of the fundamentals of seismic technology including data processing, 2) having a minimum of three years experience interpreting 3D seismic data, and 3) who are interested in learning more about the application of seismic attributes to achieve exploration, reservoir characterization and production objectives.

Prerequisites and linking courses

A basic knowledge of the seismic method, including data processing, is required for everyone taking this course. Courses such as N085 "Introduction to Seismic Interpretation", or N080 "Geophysics for Subsurface Professionals", or N376 "Seismic Data Processing: Principles and Best Practices" are recommended precursors for people with limited knowledge of the seismic method.

Click on a name to learn more about the instructor

John Castagna

Dates for this Course

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Houston

Date:
27 Apr. - 1 May. 2020
Event Code:
N049a20NA
Fee:
USD $5,400 (Exclusive of tax)
*Seats are currently available for NTA members only - PAYG clients will be advised as seats become available, based on the order they applied to the waitlist.

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