1 Resource Assessment Using GeoX: The Philippine DOE Experience Simplicio P. Caluyong • Acknowledgement to the following: DOE – for allowing me to present some of the PhilPRA materials Geoknowldge – for allowing me to use some materials from the 1 st PPM Cambodia workshop
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Resource Assessment Using GeoX: The Philippine DOE
Experience
Simplicio P. Caluyong
• Acknowledgement to the following:DOE – for allowing me to present some of the PhilPRA materialsGeoknowldge – for allowing me to use some materials from the 1st PPM Cambodia workshop
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Outline• The PhilPRA Project• PRA Methodology• Risking guidelines and Classification
system • GeoX Tools• Volumetric calculation• Conclusions
PhilPRA Project Profile
• Funding Agency: NORAD• Implementing Agency: DOE• Consultant: The Bridge Group AS• Technical Grant: NOK 5.548• Duration: Sept 2000 to March 2002
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Overview
• Establish a competent, professional group in DOE which in their own capacity can build and update a Petroleum Resource Inventory
• Publish the first issue of a Petroleum Resource Inventory of the Philippines
Main Objectives
Overview
• Develop a Petroleum Resource Classification System and Guidelines
• Develop a Risking System
Specific Objectives
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Output• Performed Basin Modeling on key basins• Performed Reservoir- and Production
Simulation on selected fields• Established routines for sustainable resource
assessment• Provided training programs• Compiled an overview of the Total Petroleum
Resources of the Philippines
Courses and education• Resource Assessment in a Resource
Management context• Data compilation and mapping • Resource assessment using GeoX • Basin modeling using Terramod • Reservoir simulation in PGS Headquarters in
Oslo, Norway• On the job training all throughout the project
period• Closing Seminar
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Outline• The PhilPRA Project• PRA Methodology• Risking guidelines and Classification
system • GeoX Tools• Volumetric calculation• Conclusions
Database• Seismic and other geophysical data
– More than 500,000 seismic line km• Well data
– More than 500 wells drilled• Onshore field data
– Samples (rock and seep)– Mapping
• Evaluations & Assessments– World bank report 1986– Contractor’s reports– Project reports and literature
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PhilPRA Work Flow
GATHER DATA
DIGITIZE PROSPECT
ANALYZE RESOURCES
IN GEOX
BUILD INPUT GUIDE
RESOURCE CLASSIFICATION SYSTEM RISK MODEL
GENERAL/PUBLISHEDREPORTS
BASINEVALUATION
REPORTSSEISMIC
WELL/PROD.
REPORTS
WELLLOGS
BASINOUTLINE/
POTENTIAL
PLAYTYPESPROSPECTS/LEADS
ROCK VOLUME VOLUME/RESERVOIR
DATA
PROSPECT ANALYSIS
(gProspectR)
DISCOVERYANALYSIS
(gDiscovery)
PLAYANALYSIS(gPlayR)
PORTFOLIOANALYSIS(gPortfolio)
DiscoveryAnalysis
Project Organization & Methods
Prospect Analysis Play Analysis
5Prospect input
to GeoX
2Digitizing/Mapping
1Reservoir/
Engineering
3Basin
Modelling
4Seismic Review/
Interpret.6
CRSMapping
7Play Analysis
In GeoX
8Support/QA/QC
PhilPRAObjectives
PhilPRAResults
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Petroleum System Concept
Reservoir/Seal distribution
Limit of mature and active Source
Play 2 (confirmed)Play 1
(unconfirmed)
Source Rock Distribution
Field/Discovery
Prospect
Geographical extent of Petroleum System
Definition of play types
• Defined based on the first order closure process (Duff and Hall, 1996)
• Emphasizes the closure as the key element of a play
• Identified six play families (AN, RB, FB, ST, MD, BD)
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Examples of play types
• Reef buildup family play (RB)– Main Process:
Biological and depositional processes
Example of play types
• Extensional fault block family play (FB)– Main Process:
Extensional tectonism
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Outline• The PhilPRA Project• PRA Methodology• Risking guidelines and Classification
Features of GeoX ToolsUniform & consistent syntaxThere is a common set of functions and options across tools for accessing, editing, estimating, storing, printing and exchanging analysis.Rapid calculation of simple analysisEasy to use, structured approach
Well/general reports, logs, DSTs (equation of state)
Gas Oil Ratio (m3/m3) Ln3Mod depth dependent Vasquez-Beggs equation (reports, logs, DSTs)
Condensate Yield*1000 (m3/1e3m3) Ln3Mod depth dependent Company reports, logs, DSTs
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• Note that the risk model is customized during the initial installation of GeoX
Probability estimates in the risk parameter page
Results table in GeoX
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• Export results to excel– Calculate for total volume using mean values– Prepare plots
• Analyze data to rank prospects and leads as well as the ranking of all sedimentary basins as a tool for an effective strategy for exploration and investment promotion