© Chevron 2008

iRAVE: integrated Reservoir Analysis & Viz Environment

Project Collaborators:- Jeff Mathews, Chevron- Perry Dobson, Chevron- John Pederson, Chevron- Troy Ruths, Chevron Contractor

2010 TIBCO Spotfire Energy Forum March 25, 2010

© Chevron 2009

Agenda What is iRAVE? Demo Project Overview How  iRAVE is used by Chevron NOJV Team for :

Pre Drill well package review/approvalPost Drill analysisCurrent Year Drill Well ResultsReservoir Surveillance and Management

Summary Conclusions Lessons LearnedBest Practices Future Work

© Chevron 2009

What is iRAVE?iRAVE

Is an acronym for integrated Reservoir Analysis & Visualization Environment

Created in the Spotfire environment

© Chevron 2009

iRAVE Data Sources 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)

Current focus is static/dynamic reservoir and production data (no financials)

© Chevron 2009

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

There may not be Life on Mars

but there is Oil. Who Knew?http://themis.asu.edu/features/aramchaos

Mars Oilfield Development

Aram Project Lake Basin Fields 3D Seismic 2099 1st oil

2111 NOJV project Operator: DXP

(Delta Exploration Prospectors)

3D Seismic Survey

N50 Km

Bebob

Nigel Kohnen

Montalva

Mars Oilfield Development

Aram ProjectLake Basin

Primary Fields Bebob Nigel Kohnen Montalva

Aram Project Lake Basin Fields

Geology Similar to Earth Sand Shale Sequence Large Lake Basin Lacustrine Oil

Mars Oilfield Development

Y series – Yogi M series – MarsA series - Ares

MDP-422SW Bebob, Aram

Mars Confidential

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) = 21.14 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

© Chevron 2009

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

© Chevron 2009

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

© Chevron 2009

Go Live

© Chevron 2009

Well Package Proposal Example (MDP-422)

Issues: Are well locations acceptable? Completion intervals okay?

© Chevron 2009

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

© Chevron 2009

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

© Chevron 2009

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

© Chevron 2009

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

© Chevron 2009

Questions?

Thank You!

© Chevron 2009

Backup

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

iRAVE (integrated Reservoir and Visualization Environment)

Mars Rock Names* Rock Name Mission Yogi Mars Pathfinder

iRAVE