aplikasi basin analysis(5)

7/21/2019 Aplikasi Basin Analysis(5)

1/55

eddy purnomo 4 unpad bdg

APLIKASI BASIN ANALYSISAPLIKASI BASIN ANALYSIS

DALAM EKSPLORASI MIGASDALAM EKSPLORASI MIGAS

eddy purnomo / 620438jatinangor november 2006


2/55


MATERI KULIAH

PENDAHULUAN

PRINSIP2 DASAR E!UN"AN SEDI#ENCekungan sedimen vs !ate te"toni"Mekanika !it#os$er

#E!ANIS#E PE#$EN%U!AN E!UN"AN SEDI#ENLit#os%eri" stret"#ing&!e'ure(trike s!i% de$ormation

%HE SEDI#EN%AR& $ASIN 'ILL&aktor %engontro!)e%ositiona! st*!e

E()LUSI E!UN"AN SEDI#EN(ubsiden"e #istor*T#erma! #istor*

ALIKA(I )ALAM I+)U(TRI E , MI-A(


3/55


.A(I+ A+AL/(I(Geological Model

Evolusi stratigrafi dan struktural

Assessment petroleum play

Exploration Play concept : producible reservoir, petroleum charge

system, regional top seal, trapping mechanism, timing

hronostratigrafi!tectonostratigrafi model vs lithostratigrafi model

"#alitatif dan k#antitatif measurement


4/55



5/55


CEKU+-A+ (E)IME+

$ithospheric stretching : rift basin, passive margin, post rift basin % sag

$ithospheric flexure : oceanic trench, foreland basin

&ransform ' (rench related basin : pull apart basin

)ack arc basin, fore arc basin, intra arc basin


6/55



7/55


&AKTR E+-+TRL CEKU+-A+

&ektonik

Perubahan muka air laut % iklim


8/55


(our"e Ro"k

)iological derived organic matter buried in sedimentary rock

*shale + carbonate

anoxic environment$ake, lacustrine, delta, shelf, enclosed marine

-ext process tergantung dari .enis kerogen, temperatur dan

#aktu


9/55



10/55



11/55



12/55



13/55



14/55



15/55



16/55


Reservoir

$imestone, sandstone dan others

Porositas, permeabilitas + distribusi lateral ' vertical heterogen

/iagenetic processes : dissolution, dolomiti0ation, fracturing, rekristalisasi, sementasi + 10 gro#th

$st reservoir : environmental control 2 post sedimentation proc3

4st reservoir : provenance type + distance


17/55



18/55



19/55



20/55


Ca% ro"k

Aspek penting namun sering diabaikan

5ine grain sediment + evaporite ' salt

4ealing capacity ' mathematical analysisGas leaks *diffusi lebih mudah drpd oil leaks

$itologi, ductility, tebal, distribusi lateral, kedalaman


21/55



22/55



23/55



24/55


Tra%%ing Me"#anism

4truktural, stratigrafis, kombinasi + hydrodinamic

5aulted anticline vs against fault

"hronostratigrafis ' tektonostratigrafis model


25/55



26/55



27/55



28/55



29/55



30/55



31/55



32/55



33/55


CEKU+-A+ (E)IME+

$ithospheric stretching : rift basin, passive margin, post rift basin % sag

$ithospheric flexure : oceanic trench, foreland basin

&ransform ' (rench related basin : pull apart basin

)ack arc basin, fore arc basin, intra arc basin


34/55


RI&T .A(I+4ource rock : lake, lacustrine sediment : fresh #ater algae, bacteria

land plant material, Botryococcane biomarker : oil prone *#axy, lo#

sulphur content, G67 88

Predominantly clastic reservoir

4tratigraphic trap

9ntraformational shale ' post rift shale seuence

Early &ertiary ; ")9 + Meso0oic ; "&9


35/55



36/55



37/55


A((I1E MAR-I+/eltaic source rock : fresh #ater algae, bacteria, land plant material

*abundant gas prone #% small amount of light crude


4tratigraphic ' structural trap, rollover listric normal fault

9ntraformational shale, prodelta shale

Early ' $ate &ertiary


38/55



39/55


(T RI&T (A- .A(I+

4helf ' open marine

arbonate ' calcareous shale source rock : salt #ater algae,

bacteria, land plant material


40/55



41/55


CEA+IC TRE+CH 4ource rock : deep marine shale #% small amount of &6

Poor ! no reservoir

4truktur komplek

4hale seuence sangat dominan

Potensi migas kecil


42/55



43/55


&RELA+) .A(I+4ource rock : land plant material, Pre ollision sediment !

limestone oil + gas prone


4tructural trap, rollover imbricated thrust fault

9ntraformational shale

Early ' $ate &ertiary *=agros folded belt


44/55

eddy purnomo 4 unpad bdg-eo!ogi"a! Cross (e"tion

?

?

&m4 .iak

&m4 oo#

io!it

?

Tiaka &ie!d)onggi &ie!d

(E


45/55


(TRIKE (LI RELATE) .A(I+ 5ULL AART .A(I+ 4ource rock *lake ' lacustrine : fresh #ater algae, bacteria,

land plant material *abundant oil + gas prone


4tratigraphic ' structural trap, #rench related trap

9ntraformational shale, prodelta shale

Early ' $ate &ertiary *6mbilin basin


46/55



47/55



48/55



49/55


.ACK ARC .A(I+5ailed rift basin *Aulacogen

4ource rock *lake ' lacustrine : fresh #ater algae, bacteria,

land plant material oil + gas prone

arbonate ! clastic reservoir

4tratigraphic ' structural trap

9ntraformational shale, regional top seal

Early &ertiary ' 1uarternary *")9 basin


50/55


4amuel + Gultom, >?@


51/55


52/55


4amuel and Gultom *>?@


53/55


54/55


(TRIKE (LI RELATE) .A(I+ 5ULL AART .A(I+

7 I+TRA ARC .A(I+


55/55

TERIMA KA(IH

aplikasi basin analysis(5)

Documents