1. iRAVE: integrated Reservoir Analysis & Viz Environment
2010 TIBCO Spotfire Energy Forum
March 25, 2010
iRAVE: integrated Reservoir Analysis & Viz Environment
Project Collaborators:
Jeff Mathews, Chevron
Perry Dobson, Chevron
John Pederson, Chevron
Troy Ruths, Chevron Contractor

2. Agenda What is iRAVE? Demo Project Overview
How  iRAVE is used by Chevron NOJV Team for :
Pre Drill well package review/approval
Post Drill analysis
Current Year Drill Well Results
Reservoir Surveillance and Management
Summary
Conclusions
Lessons Learned
Best Practices
Future Work

3. What is iRAVE?
iRAVE
Is an acronym for integrated Reservoir Analysis & Visualization Environment
Created in the Spotfire environment

4. iRAVE Data Sources Files from Operator Monthly via DVD
Current focus is static/dynamic reservoir and production data (no financials)
Files from Operator
Monthly via DVD
Oil Field Manager (MS Access) – production & downtime
WellView (MS Access) – well schematics and activities
Sporadic
Completion Schematics (Adobe PDF)
Production Logging (MS Word)
MDT Runs (MS Excel)
Proposed Drill Production Forecasts (MS Excel)
Weekly Well Test Report (MS Excel)
Files We Generate (as needed)
Well table including proposed drills and other well-specific data not supplied by Operator
Log images (Petrel workflow)

5. iRAVE Data Upload MS Access-based data uploading tool
Can specify which data to be updated (reduces wait time)
Full upload takes ~30 minutes
Data is copied to SQL Server, and new tables are created for use in Spotfire
All done by our Geo Tech

6. Mars Oilfield Development
50 Km
Aram Project Lake Basin Fields
3D Seismic 2099
1st oil
NOJV project
Operator: DXP (Delta Exploration Prospectors)
3D Seismic Survey
There may not be Life on Mars but there is Oil. Who Knew?

7. Lake Basin Primary Fields
Mars Oilfield Development
Bebob
Nigel
Kohnen
Montalva
Aram Project
Lake Basin Primary Fields
Bebob
Nigel
Kohnen
Montalva

8. Lake Basin Fields Geology
Mars Oilfield
Development
Aram Project
Lake Basin Fields Geology
Similar to Earth
Sand Shale Sequence
Large Lake Basin
Lacustrine Oil
Y series – Yogi
M series – Mars
A series - Ares

9. MDP-422 SW Bebob, Aram Mars Confidential SW Bebob Surface Map
Requesting approval for 6 wells in SW Bebob Field: Be303, Be304, Be305, Be441, Be445 and Be447.
SW Bebob Development
Currently 23 producers , 4 injectors
Oil Recovery thru YE 2117 = 10.2 MMBO
Estimated current SW Bebob EUR (decline curve) = MMBO
Forecasted incremental capture reserves from MDP-422 wells = 6.1 MMBO
Planned Development (18 acre pattern infill)
Multiple YO sands in area
All wells to have M1-10 perfs
All wells to have M1-20 perfs
Tie in to Manifold Be152
SW Bebob Surface Map
Producers
Injectors
New Wells

10. How Does the Chevron Team use iRAVE?
The Chevron Team uses iRAVE for :
Pre Drill well package review/approval
Post Drill analysis & Current Year Results

11. Before we go live…
We use the library function as opposed to WebEx or InfoLinks
It can be easily saved on a laptop for portability at offsite meetings
We will now go through the basic screens to show how we use iRAVE

12. Go Live

13. Well Package Proposal Example (MDP-422)
Issues: Are well locations acceptable?
Completion intervals okay?

14. Conclusions
iRAVE is an emerging technology which enables us to keep up with Operator.
Six rigs total
100+ new completions per year
~1,000 stims per year
$500 MM - $1,000 MM annual Capex and Opex budget
Only one geo and one engineer on Chevron team!
Team activities in 2009 generated over $50 MM in NPV utilizing iRAVE and independent mapping to identify project opportunities
iRAVE can be applied to other assets with minimal effort

15. Lessons Learned
Integrated platform allows improved decision-making, in some cases, better than the Operator
Splitting the process to compile data to a central server separate from the application allows easier adoption to other assets and easily integrate new data
This process has helped us influence the Operator by challenging their analysis methods (i.e., IP rates were always optimistic)
Plan for due diligence, that is, data clean-up, and influence Operator to improve data sources

16. Best Practices
2009 Drilling Results plot – recognized by Chevron’s Internal Reserves Advisory Committee as best practice (type curves and comparison to actual new drills)
MDP post-drill analysis – has helped to influence Operator to review their proposals in more detail
Mid 2117 Package
Early 2118 Package

17. Future Work Integrating other data elements Stimulation Results
Pump Replacements
Production Attribute Background Maps
Well Pay Summaries
Simulation History-Match Data
Application windows
Stimulation Uplift Tracker & Predictor
Areal Bubble Maps
Waterflood Analysis
After-Before Compare (ABC) Plots
Downtime Analysis
Artificial Lift Analysis
Front-end to Business Plan and Reserves Documentation

18. Questions? Thank You!

19. Backup

20. iRAVE (integrated Reservoir and Visualization Environment)
Mars Rock Names*
Rock Name Mission
Bebob Mars Pathfinder
Tigger Mars Pathfinder
Nigel Mars Pathfinder
Kohnen Mars Rover Spirit
Macquarie Mars Rover Spirit
Montalva Mars Rover Spirit
Mackinac Mars Rover Opportunity
* from Wikepedia

21. iRAVE
Mars Rock Names*
Rock Name Mission
Yogi Mars Pathfinder

22. Aram Overview Links to left to key pages Mention Top Lists
Map-click on well location to pick
Lower right has historical completion counts
Lower left displays downtime volumes by month
Filter Panel- can filter down to whatever groups you want

23. Well Portal Can pick a single well by clicking or CNTL-F
Note well test data is current thru the past Monday
Well schematic is simplified to see completion type and perf zones
Log section was created from Petrel workflow
Jobs gives us history of well related events
Production curve shows historical
Click on MCP or PLT links in upper left to get completion or PLT files

24. Production Analysis Move to this page to see some details
Note the Jobs section, how you can hover over it to see details
For this particular well, note the stim jobs

25. MDTs Highlight a group of wells on map or use CNTL-F
Show how hovering over a point will give details
Note historical pressures over time on bottom plot

26. Select Fault Block
Click on Chad Overview and Limit FaultBlock to K02 & K03
Must manually zoom to fault block for now
Note well lists on top, completion history on bottom
Hover over a well name to see other places it exists on screen.

27. Well by Well Analysis Click to Well Portal page
Zoom in on fault block in map
Now hover over wells on map to see details
Click on one to see everything else
Can click on Production Analysis page to see detail of profiles and Jobs

28. Post Drill analysis – Be820
Dashed red lines represent original pressure. Left or below red line is under-pressured.

29. Well Production Forecast Results
We use historical data to generate Type Curves for economics. This plot helps us fine tune our forecasts and see if we are on target.

30. MDP Lookback Cums Click to MDP Lookback Cums page
Click on an MDP Package in plot on bottom left
It will give MDP total on top, by well on right

31. MDP Lookback Rates Click to MDP Lookback Rates page
It will give MDP total on top, by well on right