a demonstration of egs technology project location...

All depths are KBDrilled April-July 2008Deviation in open hole:10.4 to 13.1 deg from 6395 to 9035’17.2 to 20.0 deg from 9434 to 9950’

from surface to 4,391’ in 17 1/2” holeBurst: 5,380 psi

Capacity: 6.2199 gals/ft

from 4,189’ to 6,462’ in a 12 1/4” holeBurst: 7,930

Capacity: 2.9721 gals/ft

30” csg to 130’ in a 36” hole

20” csg to 1108’ in a 26” hole

13 3/8” 72lb L-80 csg

9-5/8” 53.5lb L-80 csg

8-1/2” open-hole from 6,462 to 10,060’ (TD)

The Future of Geothermal Energy

Notice of Public Outreach Meeting

Thursday, August 12th – 6 - 8pm

AltaRock will describe the project plans and hold an open forum to discuss questions and

concerns from all interested parties. AltaRock will provide refreshments.

We look forward to meeting you there.

Sunriver Nature Center and Observatory

57245 River Road (off of Circle 3) • Sunriver, OR

AltaRock Energy and Davenport Newberry

Contact AltaRock:

Kimberly Van Hall

kvanhall@altarockenergy.com

(415) 331-0130

Learn More:

www.newberrygeothermal.com

www.altarockenergy.com

www.facebook.com/newberryegs

The Future of Geothermal Energy

Notice of Public Outreach Meeting

Thursday, August 12th – 6 - 8pm

AltaRock will describe the project plans and hold an open forum to discuss questions and

concerns from all interested parties. AltaRock will provide refreshments.

We look forward to meeting you there.

Sunriver Nature Center and Observatory

57245 River Road (off of Circle 3) • Sunriver, OR AltaRock Energy and Davenport Newberry

Contact AltaRock:

Kimberly Van Hall

kvanhall@

altarocken

ergy.com

(415) 331-0130

Learn More:

www.newberrygeothermal.com

www.altarockenergy.com

www.facebook.com/newberryegs

Goals of the Demonstration•DemonstratecurrenttechnologyandadvancesinEGS –Stimulateatleast3fracturezones –Demonstratedivertertechnologyformultiplezonestimulation –Demonstratesingle-welltestmethodstoassessproductivityafterstimulation•DrilltwoproductionwellsintonewlycreatedEGSreservoir•Produceeconomicquantitiesoffluidperproductionwell•Establishcirculationthroughthree-wellsystem•DevelopconceptualmodelofcompleteEGSsystem

•AmericanReinvestmentandRecoveryAct•DepartmentofEnergy,EnergyEfficiencyandRenewableEnergy,GeothermalTechnologiesProgram

•AltaRockawarded$21.45maspartoftotalbudgetof$43.81m

•Inassociationwith:DavenportNewberry,EGI,USGS,TempleUniversity,TexasA&M,LBNL

•DemonstrateEGSatNewberryforfutureapplicationacrosstheUnitedStates

•10milesnortheastofLaPine,Oregon•23milessouthofBend,Oregon•DeschutesNationalForest•NorthwestflankofNewberryVolcano,DeschutesCo,OR

•Federalgeothermalleasesoutsidewesternboundaryofmonument

•CommunityOutreach

•Geosciencereviewandlabstudies

•BaselineMonitoring

•Permitting

•StimulationPlan

•DOEStage-GateReview

Regional•Lowhistoricseismicity–nomeasurableeventssince1980within10kmofdemonstration

•ExistingstationsatBend,PineMountain,FortRock,andSEflankofNewberry

•InstalledadditionalstationsatRiverMeadowsandLaPine

Local•CoupledwithregionalarraytoprovidebaselinedataandinitialindicationofPhaseIIarrayperformance

•Highdensitystationarrayofshortperiodseismometers tomeasuresmaller,localevents•Finalarraywillconsistofupto10boreholeinstallationsand7surfacestations

PreparationforStimulation•InjectionWellStimulation•DrillandTestProductionWells•ConductCirculationTest•DevelopconceptualmodeloffullydevelopedEGSwellfieldandpowerplant•SupplyprojectreportstoDepartmentofEnergy•Issuepeer-reviewedpublications•PostdemonstrationdatatoNationalGeothermalDatabase

Phase I - Pre-Stimulation 2010-2011

A Demonstration of EGS Technology Project Location - Central Oregon, USA

ExistingWell55-29,completedin2008,willbestimulated.Afterstimulation,twoadditionalwellswillbedirectionallydrilledfromthesamepadtointersectthenewlycreatedEGSreservoir.

Well 55-29 Profile and Direction DrillingMonitoring Seismicity

Phase II - Injection Well Stimulation / Summer-Fall 2011Drill and Test Production Wells / Fall 2011-Fall 2012

Theon-sitewaterswellwillprovidefluidforstimulation.Asingle-welltestwillbeconductedtoevaluatestimulationresults.Fieldactivitieswillculminateina30-60daythree-wellcirculationtest.

Stimulation and Well Flow Testing

Planned Microseismic Array Stations Estimated Water Usage

Phase III - Conceptual Modeling 2013

StimulationofFirstIntervalPre-Stimulation StimulationofSecondIntervalAfterDiverterApplication

StimulationofThreeIntervalsComplete

DrillTwoProductionWellsintoEGSReservoir

MilestonesAwardNotification–November1,2009•DOELimitedReleaseofFunds–May3,2010•FiledNoticeofIntent–June8,2010•InitiatedEA–September16,2010•CompletedSeismicRiskAssessment–November24,2010

CompleteEA–April29,2011•CompleteDOEStage-GateReview–June17,2011•InitiatePhaseIIStimulationActivities–June20,2011

•Projectmayusebetween73and142milliongallons(223-435ac-ft)ofgroundwater•Estimateincorporatesmanyvariablesthatwillbevalidatedbydemonstration•Waterproducedfromon-sitegroundwaterwells•AllconsumptionbalancedbypurchaseofDeschutesRiverConservancymitigationcredits

Waterremainsinreservoirorisevaporatedduringflowtests

Multi-WellFlowTest

TheMarketingDepartment-www.tmd-usa.com

Atmospheric Separator and

Weir Box

Water Well

LightsLights

Sump

O� site water source

55-29

55A-29

55B-29

Water Supply Pumps

CirculationPumps

Water Tanks

Atmospheric Separator and

Weir Box

CAT Diesel Generator

LightsLightsO�ce Trailers

Storage Containers

Water Truck

Trucks

Cars

Water Well

Atmospheric Separator and

Weir Box

Lights

Batch Mixer

Sump

Water Tanks

Water Supply Pumps

O� site water source

Stimulation Pumps

(Frac trucks)

55-29

CAT Diesel Generator

LightsLightsO�ce Trailers

Storage Containers

Water Truck

Trucks

Cars