An interdisciplinary software environment for Earth Sciences

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An interdisciplinary software environment for
Earth Sciences

• DOE-funded collaborative 3DGeo/CEES Project
• PI Jerry Harris (Stanford University CEES)
• PI Sergio Zarantonello (3DGeo Inc.)

11/29/2007
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Collaborators
Bob Clapp Youli Quan Huanquan Pan Emmanuel
Fetel Anagha Tongaonkar
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Design objectives

• .A client-server software system with an advanced
  graphical user interface allowing
• Access to a tools, datasets, and applications
  in the Earth sciences in a consistent manner.
• Creation and execution of complex workflows.
• Use of remote computational resources.
• Visualization and collaborative analysis of
  intermediate and final results.
• The infrastructure should allow simple plug-in of
  application modules and automatic generation of
  application-specific GUIs based on parameter
  description files.

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Strategy

• Shortest path to objective
• Use existing client-server infrastructure (INSP)
• Use existing programs.
• No modification of existing programs.
• Use built in features of GoCAD.
• Auto-conversion to uniform data format
• Graphical interface that hides data conversion
  effort.

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Client-server infrastructure

• Development is based on a client-server interface
  (INSP) for seismic imaging developed by 3DGeo
  providing
• Graphic parameterization interfaces for seismic
  processing modules.
• A graphical flow-building interface for creation
  and submission of seismic jobs built from a set
  of modules.
• Capability to steer execution on remote
  computational resources and monitor partial
  results (ASP model)?.
• Java3D visualization and collaborative
  capabilities.

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Internet Seismic Processing (INSP)
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INSP client
Flow builder
File Explorer
Description Viewer
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Workflow builder
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Application GUI
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Use existing programs

• GPRS General-purpose reservoir simulator
  developed
• at Stanford.
• GEM Compositional simulator from CMG to model
• CO2 coal-bed absorption.
• GoCAD Geo-modeling tool.
• Acoustic3d 3DGeos program to solve classical
• wave equation in heterogeneous media.
• SPM 3DGeos implementation of Shot Profile
  Migration.

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Common data structure
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SGrid with cell-centered properties

• Explicit Geometry
• All grid point coordinates must be stored
• Implicit Topology
• Each grid block as the same number of neighbors
• Properties
• Either CELL centered property are associated to
  each grid block
• Or POINT centered

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Module wrapper
Input 2
Input 1
Parameters
Program
Converts parameters and inputs to required form
Output 2
Output 1
Each input and output has an XML descriptor
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Phase I - Current status
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Phase I - Proof of concept
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Phase II Project objectives
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Phase II - Proof-of-concept
Project Geologic storage of CO2

• Build geologic model (GoCAD)
• Simulate CO2 injection process (GPRS/GEM)
• Simulate coal bed absorption of CO2 (GEM)
• Obtain seismic velocities from saturations,
  pressures and porosities (Rock Physics tools)
• Model acoustic wavefield (e.g. Acoustic3d finite
  difference code)
• Create seismic images (Shot Profile Migration
  code).
• Compare saturation fronts with seismic images.

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Phase II - Geologic storage of CO2
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Ultimate Goal Functional 4-D Cycle
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Benefits

• A collaborative cross-disciplinary
  infrastructure with a broad range of
  applicability.
• An environment that facilitates the integrated
  use of dissimilar but related applications.
• A flexible framework that allows change and
  growth.