PC Reserves/DecisionSite Integration Improved RAC Process John Pederson, ChevronTexaco Tim Loser, Spotfire

Problem: Handling Reserve Data Labor intensive: Extensive resources are used to generate, validate and analyze CVX’s Reserves data Multiple Evaluation Methods: Differently methods and cutoff parameters are used to analyze and evaluate reserve information. Differences occur from business unit to business unit, from asset to asset, and from reservoir to reservoir Discrepancies: Differences in techniques and cutoff parameter can create discrepancies in reserve calculations – the asset of all E&P companies Efficient Evaluation: How can we efficiently evaluate the reserves from the PC Reserves database for use by the corporation?

Reserves Review Process Introduction Definitions: PC-Reserves: Reserves reporting Database Opco: operating company RAC: Reserves Audit Committee SBU: Strategic Business Unit Asset team: field level team Annual Cycle

Project Goals Provide easy, fast and robust connectivity to PC Reserves Database Automate commonly performed tasks, such as RAC required plots Enable quick look QC tools Create an environment for standard and improved analysis using CVX reserves data

Improved confidence in reserves data Benefits Reduced analysis time Improved Data Access More Intuitive Interface Automated RAC Templates Improved confidence in reserves data Increased use of reserves data through new analysis and classification techniques Platform for rapid deployment of successful analysis practices

Export from PC Reserves Create your own queries from PC Reserves Ad Hoc Query tool. Directly load a DecisionSite session from PC Reserves for data analysis Alternatively export to a file and import data to DecisionSite

Direct Access to PC Reserves Common data requests provided from DecisionSite Interface Data pre-configured for RAC templates Common calculations and data manipulations performed “on-the-fly” Recovery Factors (Current and Ultimate) R/P Total Reserves (Risked and Unrisked) Expected Value Reserves (P1D @ 100%, P3 @25%…) Does not require launching PC Reserves Security of data maintained using standard CVX policies

Data Retrieval through DecisionSite No Database knowledge necessary Direct Connection to PC Reserves Load Data Exported from PC Reserves Common Calculations Created Automatically ***Framework in place for rapid deployment of further additions

Pre-Defined Analysis Guides RAC Templates++ Common Reserves Adds Reserves Data Analysis++ Data Validation ++ Peer Comparison Asset Characterization ++ Will Demo

One Click Access to Common RAC Templates Reserves Adds Changes over time

Reserves Analysis ++ Will Demo Growth-Decline Cycle (shown here)++ Changes over time++ Pareto Chart Cum Log Normal Distribution ++ Will Demo

Data Validation Allows users to “walk through” routine analysis used to identify quality problems in PC Reserves data Reserves:OOIP Mismatch Negative Reserves Production Reserves Mismatch (Negative Reserves Screen) Data screened using these processes are labeled for further investigation.

Value of DecisionSite Integration Higher confidence of the quality of reserves data Improved efficiency in analysis of reserves data Increased understanding of asset base Standardization of common practices Improved opportunity discovery rate Establishes a platform for deploying new and better methods for analyzing reserve data

Pandora Demo

Pandora Demo Field Level Reservoir Level Load Asset Team Definition QC Data Workflow and RAC plots Reservoir Level Load waterflood data Identify waterflood opportunity

Thank You Questions ?????? Acknowledgements Special thanks to Mark Ruths, Tim Loser, Joseph Taylor, Karen Newcomb and to all who helped make this project a success. Questions ??????