2 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 ManagementSummaryConclusionsLessons LearnedBest PracticesFuture Work
3 What is iRAVE?iRAVEIs an acronym for integrated Reservoir Analysis & Visualization EnvironmentCreated 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 OperatorMonthly via DVDOil Field Manager (MS Access) – production & downtimeWellView (MS Access) – well schematics and activitiesSporadicCompletion 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 OperatorLog 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 minutesData is copied to SQL Server, and new tables are created for use in SpotfireAll done by our Geo Tech
6 Mars Oilfield Development 50 KmAram Project Lake Basin Fields3D Seismic 20991st oilNOJV projectOperator: DXP (Delta Exploration Prospectors)3D Seismic SurveyThere may not be Life on Mars but there is Oil. Who Knew?
7 Lake Basin Primary Fields Mars Oilfield DevelopmentBebobNigelKohnenMontalvaAram ProjectLake Basin Primary FieldsBebobNigelKohnenMontalva
8 Lake Basin Fields Geology Mars OilfieldDevelopmentAram ProjectLake Basin Fields GeologySimilar to EarthSand Shale SequenceLarge Lake BasinLacustrine OilY series – YogiM series – MarsA 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 DevelopmentCurrently 23 producers , 4 injectorsOil Recovery thru YE 2117 = 10.2 MMBOEstimated current SW Bebob EUR (decline curve) = MMBOForecasted incremental capture reserves from MDP-422 wells = 6.1 MMBOPlanned Development (18 acre pattern infill)Multiple YO sands in areaAll wells to have M1-10 perfsAll wells to have M1-20 perfsTie in to Manifold Be152SW Bebob Surface MapProducersInjectorsNew Wells
10 How Does the Chevron Team use iRAVE? The Chevron Team uses iRAVE for :Pre Drill well package review/approvalPost Drill analysis & Current Year Results
11 Before we go live…We use the library function as opposed to WebEx or InfoLinksIt can be easily saved on a laptop for portability at offsite meetingsWe will now go through the basic screens to show how we use iRAVE
13 Well Package Proposal Example (MDP-422) Issues: Are well locations acceptable?Completion intervals okay?
14 ConclusionsiRAVE is an emerging technology which enables us to keep up with Operator.Six rigs total100+ new completions per year~1,000 stims per year$500 MM - $1,000 MM annual Capex and Opex budgetOnly 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 opportunitiesiRAVE can be applied to other assets with minimal effort
15 Lessons LearnedIntegrated platform allows improved decision-making, in some cases, better than the OperatorSplitting the process to compile data to a central server separate from the application allows easier adoption to other assets and easily integrate new dataThis 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 Practices2009 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 detailMid 2117 PackageEarly 2118 Package
17 Future Work Integrating other data elements Stimulation Results Pump ReplacementsProduction Attribute Background MapsWell Pay SummariesSimulation History-Match DataApplication windowsStimulation Uplift Tracker & PredictorAreal Bubble MapsWaterflood AnalysisAfter-Before Compare (ABC) PlotsDowntime AnalysisArtificial Lift AnalysisFront-end to Business Plan and Reserves Documentation
20 iRAVE (integrated Reservoir and Visualization Environment) Mars Rock Names*Rock Name MissionBebob Mars PathfinderTigger Mars PathfinderNigel Mars PathfinderKohnen Mars Rover SpiritMacquarie Mars Rover SpiritMontalva Mars Rover SpiritMackinac Mars Rover Opportunity* from Wikepedia
21 iRAVEMars Rock Names*Rock Name MissionYogi Mars Pathfinder
22 Aram Overview Links to left to key pages Mention Top Lists Map-click on well location to pickLower right has historical completion countsLower left displays downtime volumes by monthFilter 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 MondayWell schematic is simplified to see completion type and perf zonesLog section was created from Petrel workflowJobs gives us history of well related eventsProduction curve shows historicalClick 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 detailsFor 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 detailsNote historical pressures over time on bottom plot
26 Select Fault BlockClick on Chad Overview and Limit FaultBlock to K02 & K03Must manually zoom to fault block for nowNote well lists on top, completion history on bottomHover 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 mapNow hover over wells on map to see detailsClick on one to see everything elseCan 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 leftIt 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