eksplorasi hidrocarbon

8/7/2019 eksplorasi hidrocarbon

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EXPLORATION PROGRAM

Evaluation Hidrocarbon


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http://../Kendeng/DATA%20GEOKIMIA%2009-07-2007.xls


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Surface Geological Map Geological Section Measuring Section

Detail Structure Features


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Nummulites ?

LOCATION 4 : 551203, 9185028

Conglomerate consisting of volcanics, carbonate materials and reworked fossi(Nummulites sp)

Bentos

Pg

Plankton

Nummulites

LOCATION 5 : 551037, 9185290

Calcareous sandstone characterized by dark brownishcolor

Lepidocyclina

LOCATION 5 : 551017, 9186242

Sandy calcarenite characterized by brownish greycolor


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Lithology Petrography Fossil

Reservoir Property Provenance Environment Depositional Age Constrain

Hydrocarbon Sampling Source Rock Sampling

Hydrocarbon Maturation Oil Province Source Rock Quality


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U


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WELL EVALUATION

PETROPHYSIC GEOCHEMISTRY LITHOLOGY

RESERVOIR QUALITY SOURCE ROCK QUALITY


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Source Rock Evaluation


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Source Rock Identification : Proklamasi Well

Source Rock Potential Source Rock Quality


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WELL EVALUATION

PETROPHYSIC GEOCHEMISTRY LITHOLOGY



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Top Echuca Shoals Formation present-daymaturity

MATURITY ANALY

Barber et al., 2003


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16

Summary of Maturation Models/Charge

Location of 1D Maturation Models for Plover Marine Shale Source (Type B) Only

Locations 1, 3, 5 & 6 suggest onset of HC generation starting in the Paleogene

Peak generation of these points appear to coincide with timing of the outboardstructures forming

Location 4, due to its location in Calder Graben onset of HC occurred during the lateCretaceous

3

12

4

5

6

PloverPinch-ou

t


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WELL EVALUATION

PETROPHYSIC GEOCHEMISTRY

LITHOLOGY


Reservoir Rock Evaluation


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Reservoir Rock Evaluation

0,4

0,5

OF

Crossplot Log Neutron and Density to

Identify Lithology type from well

0,4

0,5

LITHO

Compositional Rock Evaluation


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2

-5 5

RockCompositionofAlala

Based on log porosity Neutron-

Density, GR and PEF, The X-1 well

contains pre-dominantly of quartz

within Warukin Formation, and

abundant of calcite and rarely of

Quartz in the Berai Limestone.

The Tanjung Fm. Dominated by

Sand-stone and common of

limestone and also present of

abundant of shales




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Based on log porosity Neutron-

Density, GR and PEF, The shale

type of X-1 well comprises ofabundant of feldspar and quartz, and

common of kaolinite, also rare of

chlorite.

1 ,8

-5 5


Compositional Rock Evaluation based on


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LITHOLOGY CO

80

90

100

Compositional Rock Evaluation based on

cuting & Coring


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GWC


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0,001

0,01

0,1

1

10

100

1000

10000

0 5 10 15 20

Abadi-1 Core plug dataAbadi-2 Core plug dataAbadi-3 Core plug data

Crossplot of Porosity from Cores

Porosity cut-off0.08


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Reservoir Presence (& Quality)

SW NE

1-7 % T O C

H I 1 0 0-6201-3

H I 1

1-4 % T O C

H I 1 0 0-130

Approximately 800 Kilometers

10 moil:

11%

97 m oil150 m sand

: 8-16%

97 m gas:13%

35 m gas:15%

38 msand: 8%

125 mgas

: 7%

100+ msand

: 4-8%

70 m gas140 m sand

: 7-14%

300 msand

: 8-14%

49 m gas: 10%

50 m gas: 4-14%

Mid-Jurassic Plover sandsfilling in the failed rift


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27

Reservoir Presence

Darwin

T Permian

Permian Time Structu

Malita

Grabe

n

CalderGraben

SahulPlatfo

rmPaleozoicGoulburnGraben

Money Shoals Platform

200 km

Abadi140 m sand

70 m pay

Jurassic-Triassic Isochron Map

Badd

ataarea

200 km

B SI N6 1 6

H C A LI N6 1 6

G RG A P I0 2 0 0

3 8 2 0

3 8 4 0

3 8 6 0

3 8 8 0

3 9 0 0

3 9 2 0

3 9 4 0

3 9 6 0

3 9 8 0

T V D S S

UPloverSands

LPloverSands

INTERVAL

3 8 4 0

3 8 6 0

3 8 8 0

3 9 2 0

3 9 4 0

3 9 6 0

3 9 8 0

3 9 0 0

4 0 0 0

D E P T HM E T R E S

MDT

T N P HV / V0 . 4 5 -0 . 1 5

R H O ZG / C 31 . 9 5 2 . 9 5

1 9

71 0

31 2 5

33

42 2

81201635262

1

D T C OU S / F1 4 0 4 0

P E F ZB / E0 1 0

H D R AG / C 3- 0 . 4 0 . 1

D T S MU S / F3 4 0 0

W I R E . R X O ZO H M M0 . 2 2 0 0 0

W I R E . H L L SO H M M0 . 2 2 0 0 0

W I R E . H L L DO H M M0 . 2 2 0 0 0

A N A L Y S IS .R TO H M M0 . 2 2 0 0 0

P H I E _ 5V / V0 . 3 0

P H I T _ 7V / V0 . 3 0

P O R _ 1V / V0 . 3 0

P A Y F L GV / V9 - 1

S A N D1 0 0

S W TV / V1 0

S A TV / V1 0

D S T # 1

V S HV / V0 1

V O LV / V1 0

P H IE

V / V1 0

A b a d i - 1 P l o v e r S a n d s

Petrophysics

1

00m

A

A

offs:T: >= 0.05T:


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Reservoir Deliverability

0 15075

Kilometers

ContinentalShelf

500

m

100

0m

Bayu/Undan: CPCurrently

Producing

Sunrise: WoodsideDSTs: 8-44 MMcf/d,

330-1400 bblcondy/dPorosity: 17%

Abadi: INPEXDSTs: 13-29 MMcf/d,150-266 bbl condy/d

Porosity: 10%, CO2:9%

Evans Shoals:SantosDSTs 25MMcf/d,92 bblcondy/d

Porosity: 8%,k: 55 md

Lynedoch: CP &SantosPlover @ 4117m,No DST, Porosity:6%

Troubadour: WoodsideDSTs: 2-10 MMcf/d,13-224 bbl condy/dPorosity: 17%


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Plover ReservoirQuality

Systematic relationship between porosity and depth for Plover sands

NW Shelf Core-Analysis Porosity vs Depth Below Mudline

y = 5713.4x -1.3857

R2 = 0.7991

0%

5%

10%

15%

20%

25%

30%

35%

0 500 1000 1500 2000 2500 3000 3500 4000 4500Depth Below Mudline in Meters

CoreAnal

ysisPorosi

Abadi-1

Abadi-2

Abadi-3

Evans Shoal-2

Ashmore Reef-1

Cassini-1

J ahal-1

Troubadour-1

Heron-1

J abiru-1A

Lamineria-1

Lyendoch-2

Sunrise-2

Tuatara-1

Napoleon-1

Power (All Wells)

14 of 17 DSTs encounteredrates of 10 mmcsf/d or greater

?

?

Lynedoch


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Plover Reservoir Quality

Prospects in the western portion of the JSA that are shallower than Abadi may have betterporosities

Reservoir quality is dependant on the top Plover mapping

Reservoir Quality Map Based on Depth Below Mudline


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SEISMIC DATA

HORIZON

INTERPRETATION STRUCTURAL MODEL

STRUCTURAL STYLE

SEISMIC INTERPRETATION

LEAD & PROSPECT

IDENTIFICATION


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initial data quality relatively

poor

data significantly improvedand report completed


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Line 97ER43 Original PoSTM STACK

Thrusted Plio-Miocene interval

Oligo-Miocene carbonate interval


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NW SELINE 318

TANJUNG LEAD


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P95 = 1050 acres (6050ft)P5 = 84 acres (5875 ft)Vertical closure is 200 ft

X LEAD

Depth

conversion of

250 m twt grid

shows a 200 ftdepth closure at

X Lead

X depth closure

to south is smalland

questionable on

this mapping

X-1,2


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X LEAD

Tanjung_TWT_29 August

C.I. = 50 ms

Grid Cell Size = 250 m 4 Km

250 m gridshows a 1000+

acre time

closure at Top

Tanjung level NE

of X-1 and X-2wells

Defined by 2

lines

Vertical closure

around 200 feetX-1,2


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ISOSTATIC GRAVITY ANOMALY MAP


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ISOSTATIC GRAVITY ANOMALY MAP


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SEALINGINTERVAL

SEALING INTERVAL

SEALINGINTERVAL

SEALING ANALYSIS

GWC


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POTENTIAL KITCHEN MAPPOTENTIAL KITCHEN MAP


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Migration: Spider Diagram

Late Eocene Onset of OilExpulsion

Late Miocene Peak Oil Generation


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PreCambrian

LatePreCambrian

Silurian?

Devonian-Carboniferous?Jurassic

Cretaceous

Tertiary0

2

4

6

8

10

12

14

km

Prerift

Syn-inversion

SE NW

20km

?

?Potential SRhorizons

??

Cambrian?Syn

rift Ordovician?

Post-rift

Inverted Anticline Play

Large closures: 2-500sqkm

Primary target: Devonian sands

Secondary target: Ordovician? Dolomites

Strength: numerous large sturcutures centred

over basin core

Weakness: late trap formation relative to

modeled oil expulsion

Rift shoulder

(on free air gravity)

X PLAY SCHEMATICX PLAY SCHEMATIC


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Lead

Tanjung(Otis & Schneidermann, 1997).

Assigned risk is ~20%. Total hydrocarbon reservesare:

Gas case : Unrisked (P50) = 22 BCFRisked (P50) = 4.4 BCF

Oil case : Unrisked (P50) = 7 MMBORisked (P50) = 1.4 MMBO

NW SE


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Base Cretaceous UnconvormityBase Permo-Carboniferous

Base Devonian

Middle Camrian

Base Paleozoic

Line AR 00-54

LEAD A (Sand A)

Objective = Base Permo-

CareboniferousSandstone AidunaFormationPmax = 475678 AcrePmin = 6178 Acre

P5

1249 93

ESTIM

P5

ESTI


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THANKYOU

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eksplorasi hidrocarbon