UPDATE INDONESIA

SHALE HYDROCARBON MAPPING (Indonesia Shale Hydrocarbon Potential Basins)

UCM9

Cebu, Thursday 12 October 2017.

CCOP–KIGAMUnconventionalOilandGasProject:MappingofBlackShaleFormationsforthePredictionofShaleresources(UnConorUCProject)

RESEARCH AND DEVELOPMENT CENTER FOR OIL AND GAS TECHNOLOGY “LEMIGAS”

AGENCY OF RESEARCH AND DEVELOPMENT FOR ENERGY AND MINERAL RESOURCES MINISTRY OF ENERGY AND MINERAL RESOURCES REPUBLIC OF INDONESIA

Outline

•  Introduction•  IndonesiaShaleHydrocarbonPotentialBasins

§  BasinConfiguration§  TectonicandStratigraphy§  ExplorationHistory

•  ShaleBoundary•  EstimatedResources

Introduction•  Indonesiahasidentified128SedimentaryBasins(Geological

Agency,2009).Basinassessmentswillrevealtheconventionalandunconventionalhydrocarbonpotential.

•  Indonesiathathasalonghistoryforanoil&gasproducingcountry,ispredictedtohaveabundantofHydrocarbonShalethatspreadoutinsomematurebasins.

•  Indonesiageologicallyhaslargepotentialofhydrocarbonshale.GeologicalAgency(2011)proposetotalspeculativeresourcesofshalegasinIndonesiaforabout574.07TCF.

•  ShalegaspilotprojectisconductedinthemostprospectingareasbyLemigasandGeologicalAgencyinordertoprovetheirpotentialreservesinacommercialbasis.

•  OnthisopportunityIwillpresentedanoverviewoftheentireShaleHydrocarbonPotentialBasin,thereare14basins.

IndonesiaSedimentaryBasinsandShaleHydrocarbonPotentialBasin.

ThePromisingHydrocarbonShaleResourcesinsomeSedimentaryBasininIndonesia

GeologicalAgency(2011)

IndonesiaShaleHydrocarbonPotentialBasin

No Code BasinName BasinAge Tectonic/BasinType Area(SqKm) BasinStatus FormationTargetSH

1 1 I-A NorthSumatera TertiaryBasin RiftValley–BackArc 118,251.040 ProductionBasin Bampo,Belumai,BaongFm.

2 11 I-A Ombilin TertiaryBasin RiftValley–IntraMountain 27,209.670 DrilledBasin,Nodiscovery SangkarewangFm.

3 12 I-B CentralSumatera TertiaryBasin RiftValley–BackArc 10,3256.23 ProductionBasin Pematang,TelisaFm.

4 16 I-A SouthSumetera TertiaryBasin RiftValley–BackArc 124,444.64 ProductionBasin Lemat/Lahat,TalangakarFm.

5 22 I-A NorthwestJava TertiaryBasin RiftValley–BackArc 30,351.55 ProductionBasin LowerCibulakan/TalangakarFm.

6 29 I-A NortheastJava TertiaryBasin RiftValley–BackArc 116,300.24 ProductionBasin NgimbangFm.(Eocene)

7 41 I-E Ketungau-Mandai TertiaryBasin RiftValley–Foreland 11,603.84 UndrilledBasin KantuFm.

8 42 I-E Melawi TertiaryBasin RiftValley–Foreland 26,277.53 DrilledBasin,Nodiscovery Pendawan,Selangkai,SilatFm.

9 46 F-H Kutei TertiaryBasin PasifMargin–Deltaic 70,596.4 ProductionBasin Pamaluan,PulubalangFm.

10 47 F-H Tarakan TertiaryBasin PasifMargin–Deltaic 54,141.18 ProductionBasin Sembakung,Meliat,TabulFm

11 48 I-E Barito TertiaryBasin RiftValley–Foreland 51,497.52 ProductionBasin TanjungFm.12 69 I Sengkang TertiaryBasin RiftValley 16,121.86 ProductionBasin Toraja/MalawaFm.

13 110 F-E Bintuni Pratertiary-TertiaryBasin RiftValley–Foreland 66,831.13 ProductionBasin Ainim,TipumaFm.

14 122 F-E Akimeugah Pratertiary-TertiaryBasin RiftValley–Foreland 82,546.31 DrilledBasin,Nodiscovery Aiduna,Tipuma,

KembelanganFm.

•  10 ProductionBasin•  3 DrilledBasin,nodiscovery(Explore)•  1 UndrilledBasin(Unexplored)

Indonesia:TectonicBoundary•West:GreatSumatraandMentawaiduplexmega-shears,SumatraTrench•South:JavaTrench-Timor-AruTrough•East:ArafuraPlatform(AustraliaCraton)•North:SorongFault,NorthSulawesiTrench,SCS(SouthChinaSea)

TectonicandStratigraphy

PRESENTTECTONICSETTINGOFINDONESIA

Simplifiedtectonic

elementsandcrustal distributionfor

Indonesia Coffieldetal.(1993),NugrahantoandNoble(1997),Netherwood(2000)

PlateTectonicSubdivisions•WestIndonesiawithSundaPlatformactingasacontinentalcore•CentralIndonesiaconsistingoffragmentedmicrocontinentsrepresentedbySulawesiandtheBandaArc•EastIndonesiawiththeArafuraPlatfromactingasacontinentalcore

Stratigraphic summary of Western Indonesia

Netherwood (2000)

Netherwood (2000)

Awang H. Satyana (Dec. 06)

PALEOGEOGRAPHICSKETCHMAPSWITHEMPHASISONREGRESSIVEPHASES

KnownOligocenetoearlymostMiocenedepocenter,initiatedbyriftingandfilledwithlacustrineormarginalmarinesediments

ProgradationalclasticwedgesoftheLateOligoceneregression

Stratigraphic summary of Eastern Indonesia Netherwood (2000)

Awang H. Satyana (Dec. 06)

GeneralOilandGasExplorationHistoryofIndonesia

1885-1940•  (NorthSumatera,NorthEastJava,

NorthWestJava,EastKalimantanandSeram).

•  ExplorationTechnologyisverysimple(baseonfieldmappingandhydrocabonseepage)

•  Shallowreservoirtarget•  Simpleandlimitedexploitation

technology•  GenerallyjustlookingforOil(gas

abandoned).WarLogisticneeds(fuel)

1950-1990•  Explorationtechnologyhasevolved

(seismic–3second,mediumdrillingtechnology,laboratoryanalysis)

•  Middlereservoirtarget•  DiscoveryofgiantfieldinCentral

SumateraBasin,SouthSumateraBasin,NorthSumateraBasin,KuteiBasin,NortheastJavaBasin,includingoffshoreshallowfielddiscovery.

•  Thediscoveryofgasbegantobetakenintoaccount.

•  Exploitationtechnologybegantogrow(EOR)

•  Oilandgasproductionreached>1millionbarrel/day

1995-2005•  Advancedexplorationtechnology

(seismic–3D,highpressureandtemperaturedrillingtechnology,progressoflaboratoryanalysis)

•  Deepreservoirtarget–Pretertiary,discoveryagiantfield–Manusela(seram),Tangguh(Bintuni)

•  Explorationonthedeepsea,discoveryAbadi,IDD,EastNatuna.

•  AdvancedExploitationTechnology(EOR)

•  Morediscoveredgas--gasismoreattractiveanditsproductionexceedsoil

•  BegantogrowUnconventionalHydrocarboninUScommercially

2005-2015•  Advancedexplorationtechnology

(seismic–3D,highpressureandtemperaturedrillingtechnology,progressoflaboratoryanalysis)

•  Newtectonicconcepts,AustralianmicrocontinentalinwesternIndonesia.

•  PretertiarytargetinwesternandeasternIndonesia

•  Explorationofnonconventionalhydrocarbons(shalehydrocarbon,tightreservoir).

•  CoalBedMethane(CBM)Exploration–KuteiBasin,SouthSumateraBasin.

•  ShaleHydrocarbonExploration–NorthSumateraBasin,SouthSumateraBasin)

ShaleFormationBoundaryNORTHSUMATERA

CENTRALSUMATERA

OMBILIN

SOUTHSUMATERA

NORTHWESTJAVA NORTHEASTJAVA

MELAWI-KETUNGAUTARAKAN

KUTEI

BARITOSENGKANG

BINTUNI

AKUIMEUGAH

•  ShaleHydrocarbonPotentialBasin(14)•  Shaleformationisn'tcropoutintheNorthwestJavaBasinandNortheastJavaBasin.•  Thereare24shaleformationsthatareestimationsandconsideredtohavepotentialasashalehydrocarbon.

•  DistributionandboundaryofShaleformationsaredisplayedbasedonIslandRegion

SumateraIsland

CENTRALSUMATERA

OMBILIN

SOUTHSUMATERA

NORTHSUMATERA

A

A

B

B

CC

D

D

BaongFm.BelumaiFm.BampoFm.

SangkarewangFm.

TelisaFm.PematangFm.

TalangakarFm.Lemat/LahatFm.

JavaIsland

NORTHWESTJAVA

NORTHEASTJAVA

TherearenooutcropofLowerCibulakanFm.AndNgimbangFm.AsshaleformationofNorthwestJavaBasinandNortheastJavaBasin.

E

E

F

F

KalimantanIsland

MELAWI-KETUNGAU

TARAKAN

KUTEI

BARITO

G

G

H

H

I

I

J

J

PendawanFmandSelangkaiFm,asPretertiaryrockinKetungauBasin

Sulawesi/CelebesIsland

K

K

SENGKANG

Malawa/TorajaFm.

PapuaIsland

L

L

M

M

BINTUNI

AKUIMEUGAH

PreTertiaryBasinKembelanganFm JurasicTipumaFm TriasicAinim/AidunaFm Perm

EstimationResources

Speculativeresourcesbaseonshaleformation(geologicalagency,2011)

ShaleHydrocarbonPotentialBasinStudy

BASIN Resources(Hypothetic) OGIP OOIP

•  NorthSumateraBasin Lemigas 114.35TCF•  BaritoBasin Lemigas 165.10TCF•  SouthSumateraBasin Lemigas 54.77TCF 165.55MMBOE

•  CentralSumateraBasin GA/CSG PotentialArea

Shalecharacterization

www.lemigas.esdm.go.id

BACKUPSLIDE

IdentificationofSweetspotandShaleGasCalculationonSequence-4

FreegasVolumeCalculation(Lewis,2007)

AbsorbedGasContentCalculation

Downey’sFormulaforOilResources(2011)

VolumeCalculation

Total Original Gas In Place(OGIP) from Free Gas

CalculationResultOfFreeGas

CalculationResultOfAbsorbGas

Total Original Gas In Place(OGIP) from Absorb Gas

CalculationResultOfShaleOil

Total Original Oil In Place(OOIP) from shale oil

SHALEOUTCROPPHOTO

SHALEGASPOTENTIALININDONESIA

LargeShaleBasins,with~5,000TCFGIP(DIRECTORATEGENERALMIGASOFABOUT~1000TCF,BADANGEOLOGIOFABOUT~574TCF)

ShalegasplayCBMplay

NorthSumatraShaleGas—338Tcf

CentralSumatraShaleGas—558TcfCBM—165Tcf

SouthSumatraShaleGas—964TcfCBM—375Tcf

West&EastJavaShaleGas—722TcfCBM—56Tcf

EastKalimantanShaleGas—1,723TcfCBM—496Tcf

WestPapuaShaleGas—648Tcf

Source:ModifiedfromIHSCERA Source:AfterTalisman2012

SouthSulawesiShaleGas—20TcfCBM—2Tcf

ProducingBasin(16)

Drilledwithdiscovery(8)

Drillingwithoutdiscovery(12)

UnexploredBasin(23)