JW-110 Introduction to Constrained Sparse Spike Inversion

Audience

This training course is intended for people who want to start working with Jason software, or for those who want to learn more about Inversion.

Content

Constrained Sparse Spike Inversion (CSSI) is a technique to invert seismic data to acoustic impedance volumes. The Jason™ Workbench provides the RockTrace® module to perform Simultaneous AVA/AVO Inversion based on CSSI.

In RockTrace, the objective is to solve for shear impedance and where possible density in addition to acoustic impedance. RockTrace® builds on Jason’s InverTracePlus® full stack inversion technology by extending it to the AVO domain. The result is three volumes of absolute rock properties tightly calibrated to the well log data: P-impedance, S-impedance and Density. These results are most commonly used to delineate lithology, porosity, fluid content and other petrophysical parameters.

This course will teach the participants to independently run the RockTrace Simultaneous Inversion software, QC, interpret and analyze the results. You will learn the workflow and QC procedures to perform an inversion using RockTrace. Through a combination of lectures and exercises on a 3D Gulf of Mexico data set, students will learn the following skills:

  • How to load and QC data
  • How to perform a feasibility analysis to verify that the data is suitable for this technology
  • How to tie wells, build low-frequency models, and estimate multi-well wavelets
  • How to select and test parameters and generate elastic property volumes with RockTrace
  • How to QC, analyse, and interpret the elastic property volumes

Learning Objectives

Acquire the ability to perform Simultaneous Inversion projects with basic settings and QC analysis. Through practice and experience, students will be able to understand the inversion workflow. Thereby the students learn to take full advantage of RockTrace functionalities and capabilities

    Course Outline

    Day 1

    • Introduction to Constrained Sparse Spike Inversion (CSSI)
    • Deterministic Workflow
    • Project Setup and Data Loading
    • QC of Imported Data
    • Data Alignment

    Day 2

    • Project Feasibility
    • Well Editor and Seismic Tie
    • Wavelet Estimation

    Day 3

    • Horizon Editing
    • Trend and Stratigraphic Modeling
    • Setting the RockTrace Inversion Parameters
    • RockTrace Inversion on a Synthetic Dataset
    • Review of Inversion Parameter Testing
    • RockTrace Inversion on the Amberjack Dataset

    Day 4

    • QC’ing the Inversion Results
    • Analyzing and Interpretation of Inversion Results
          

    Duration

    4 Days

    Prerequisites

    • JW-000 Visualizing and Managing Data Using the Jason Workbench
    • GeoSoftware Integration Tutorial

    Software Covered

    Jason RockTrace

    Course Format

    Instructor-led, workflow-based, classroom training

    Audience

    This training course is intended for people who want to start working with Jason software, or for those who want to learn more about Inversion.

    Content

    This course will teach the participants to independently run the RockTrace Simultaneous Inversion software, QC, interpret and analyze the results. You will learn the workflow and QC procedures to perform an inversion using RockTrace. Through a combination of lectures and exercises on a 3D Gulf of Mexico data set, students will learn the following skills:

    How to load and QC data How to perform a feasibility analysis to verify that the data is suitable for this technology How to tie wells, build low-frequency models, and estimate multi-well wavelets How to select and test parameters and generate elastic property volumes with RockTrace How to QC, analyse, and interpret the elastic property volumes

    Learning Objectives

    Acquire the ability to perform Simultaneous Inversion projects with basic settings and QC analysis. Through practice and experience, students will be able to understand the inversion workflow. Thereby the students learn to take full advantage of RockTrace functionalities and capabilities

    Duration

    Number of Participants

    Prerequisites

    Software Used

    Course Format

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