OliGoMiocene

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PROCEEDINGS INDONESIAN ASSOCIATION OF GEOLOGISTS (IAGI) &

GEOSEA 2001

30thIAGI Annual Confeen!e " 10thGeo#ea Re$%onal Con$e## 'o$aata Se*te+,e10 " 12 2001

Recent Significant Discoveries within Oligo-Miocene Carbonatesof the East Java Basin : Integrating the Petroleu !eolog"

A-an$ ./ Satana1)

A%!en%a Da-%#1

1) E*loat%on De*t/ Peta+%na PS 4l/ e5an e5ea T%+u 1A 4aata 10110

*hone 6 728218391717: fa 6 7282183913;9a#%n hae ,een *oen#%n!e 1?;0# -hen the C%t%e# Se%!e 5%#!oee5 o%l an5 $a# -%th%n the#e !a,onate# at the

Ea#t 4aa Sea/ .o-ee the #%$n%f%!an!e of the !a,onate# a# o%l *o5u!e hae noto,ta%ne5 full attent%on unt%l e!entl -hen un8%nteu*te5 #%$n%f%!ant 5%#!oe%e# -%th%n

the !a,onate# hae ,een e*ote5/ Th%# e#ulte5 %n h5o!a,on e#ee# %n e!e## of

990 > o%l an5 700 >CF $a#/ A$$e##%e e*loat%on %# ,e%n$ +a5e , o%l !o+*an%e#*u#u%n$ the *o#*e!t%%t of the#e !a,onate# ,oth at on#hoe an5 off#hoe *at# of the

Ea#t 4aa >a#%n/ The !a,onate# -%ll hol5 futue *o#*e%t of the Ea#t 4aa >a#%n/ The

5%#!oe%e# hae al#o #ho-n that ol58-oe5 ,a#%n %# al-a# o*en fo ne- e*loat%on

Ol%$o8%o!ene !a,onate# !o+*%#%n$ the @uun$8Pu*uh8Tu,an8Ran!a !a,onate#

!on#t%tute the !a,onate !o+*le $o-%n$ at the #helf e5$e aea# to the #outhea#t of theSun5alan5/ The !a,onate# ten5 ENE " BSB fo+ the *e#ent on#hoe ea#ten *at ofthe Cental 4aa to the off#hoe aea# noth of Ea#t 4aa an5 a5ua I#lan5/ The

!a,onate# 5eelo*e5 a# *latfo+ !a,onate# *at!heef# an5 #helf8e5$e eef#/ Poen

%t!hen# $eneat%n$ h5o!a,on# ta**e5 , the#e !a,onate# ae lo!ate5 nea, -%th%n5e*e##%on aea# -%th +atue #ou!e# an$e fo+ the Eo!ene to the Eal %o!ene #hale#

o !a,onate#/

The *a*e -%ll #u++a%e h%#to%!al an5 e!ent e*loat%on of the Ol%$o8%o!ene!a,onate# of the Ea#t 4aa >a#%n an5 %nte$ate a#*e!t# of *etoleu+ $eolo$ %n!lu5%n$

the e$%onal $eolo$ the !a,onate #e5%+entolo$ an5 the *etoleu+ ##te+#/petroleum

exploration of the East Java Basin

E%P&ORI'! O&I!O-MIOCE'E C#RBO'#$ES

The C%t%e# Se%!e In5one#%a *%oneee5 e*loat%on of the Ol%$o8%o!ene !a,onate# %n

the Ea#t 4aa >a#%n %n the Ea#t 4aa Sea aea %n 1?7;/ The f%#t -ell the 5%lle5 -a# 4S 18

1 %n 1?;0 an5 te#te5 2000 >OPD fo+ the @uun$ !a,onate/ Late e*loat%on effot#

-ee 5%e!te5 +a%nl to-a5# *o+%nent !a,onate eef#/ Polen$ f%el5 -a# 5%#!oee5 %n

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1?;: an5 5eelo*e5 %n 1?;7/ The f%el5 ho-ee -a# then #hut %n 5ue to +a$%nall

!o++e!%al an5 a*%5 %n!ea#e of $a# o%l at%o/ The C%t%e# Se%!e el%nu%#he5 the aea

%n 1?;9/ Du%n$ 1?90# the Ol%$o8%o!ene !a,onate# %n the Ea#t 4aa Sea -a# e*loe5, #eeal !o+*an%e# an5 e#ulte5 %n !o++e!%al 5%#!oe%e# %n!lu5%n$ 6 Ca+a f%el5

(@e !Gee 1?92) @E < f%el5 (@o5e!o 1?93) an5 @E 2 f%el5 (@o5e!o 1?9:)/ Thee

-ee no #%$n%f%!ant 5%#!oe%e# 5u%n$ eal an5 +%581??0# unt%l the en5 of 1??9 -henPe+%e Pan$ah 5%#!oee5 the un$ Pan$ah f%el5/ n8%nteu*te5 5%#!oe%e# hae

,een e*ote5 #%n!e then/ @o5e!o Be#t a5ua Pe+%e Pan$ah Gulf @eta*an$ an5

B%a,uana @aa*an e*loe the aea no-a5a#/

In on#hoe *at of the ,a#%n the %n%t%at%on of e*lo%n$ the Ol%$o8%o!ene !a,onate# -a#

not a# eal a# that %n the off#hoe aea/ Th%# ,e!au#e %55le %o!ene to Eal Pl%o!ene

#an5# hae 5o+%nate5 the e*loat%on ta$et #%n!e the late of 1900#/ Peta+%na an5 %t#!onta!to# #tate5 e*loat%on %nto 5ee*e o,e!t%e# 5o-n to the Eo!ene !la#t%!# %n eal

1?90#/ Thee -a# no #%$n%f%!ant 5%#!oe%e# e*ote5 unt%l 1??: -hen 4O> (4o%nt

O*eat%n$ >o5) Peta+%na8Ten5 Santa Fe te#te5 7000 >OPD fo+ Eal %o!ene

Tu,an !a,onate# at the u5% #tu!tue/ .u+*u# Pata$a#o,%l %n5%!ate5 #%$n%f%!antu**e @uun$ (Pu*uh) eef !alle5 a# the >anu %* #tu!tue to the -e#t of the u5%

f%el5 %n +%5 1??0#/ An e*loat%on -ell -a# 5%lle5 on the to* of the eef %n 1??9 an5Eono,%l late !o+*lete5 the -ell %n eal 2001 an5 ,e!a+e the #%$n%f%!ant

5%#!oe%e# ee +a5e %n the on#hoe @uun$ !a,onate#/ No-a5a# Peta+%na 4O>

Peta+%na8Santa Fe Eono,%l an5 Co*ae e*loe the aea/

RECE'$ DISCO(ERIES

Re!ent #u!!e## of e*lo%n$ Ol%$o8%o!ene !a,onate# of the Ea#t 4aa >a#%n -a# ,e$un, the Pe+%e O%l Pan$ah %n Noe+,e 1??9 -hen the 5%lle5 un$ Pan$ah81 -ell

at off#hoe aea u#t to the nothea#t of the +outh of the >en$a-an Solo R%e/ The -ell

te#te5 20; CFGPD ;03 >OPD an5 1;2 >CPD fo+ the Lo-e Tu,an an5 **e@uun$ !a,onate#/ In a 1??? Co*ae >loa >// at the on#hoe ,a#%n to the

#outhea#t of Se+aan$ 5%lle5 Re+,an$81 -ell an5 te#te5 1?/1 SCFGPD fo+ the

@uun$ !a,onate#/ Pe+%e O%l Pan$ah e*eate5 the% #u!!e## %n Noe+,e 2000 -henthe te#te5 1:32 >OPD an5 #+all a+ount of $a# fo+ S%5au81 -ell lo!ate5 to the noth

of un$ Pan$ah 5%#!oe/

The en5 of 2000 +ae5 the %n%t%at%on of un8%nteu*te5 #u!!e##e# +a5e %n the Ol%$o8%o!ene !a,onate# at ,oth off#hoe an5 on#hoe *at# of the Ea#t 4aa >a#%n/ In

De!e+,e 2000 @o5e!o Be#t a5ua off#hoe 5%#!oee5 1;: feet net $a# *a an5 300

feet net o%l *a -%th%n @uun$ IIII !a,onate# of @E823 > #tu!tue/ Th%# -a# follo-e5, the 5%#!oe of $a# an5 !on5en#ate of ?/3< CFGPD an5 ?1 >CPD -%th%n @uun$

!a,onate# of @E 13 eef %n 4anua 2001/ In Fe,ua 2001 Eono,%l Ce*u on#hoe

te#te5 391; >OPD an5 1/2 CFGPD -%th%n @uun$ I8Pu*uh !a,onate of >anu%*83 e8ent -ell/ Th%# 5%#!oe -a# !onf%+e5 -%th >anu %*81 -ell 5%lle5 %n

a!h 2001 an5 te#te5 :7?2 >OPD/ Al#o %n a!h 2001 @o5e!o Be#t a5ua off#hoe

+a5e a 5%#!oe -%th%n @uun$ I !a,onate of @E 2: eef te#t%n$ 20/;< CFGPD/

Gulf In5one#%a @eta*an$ a55e5 the #u!!e## of e*lo%n$ Ol%$o8%o!ene !a,onate# %n

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the Ea#t 4aa off#hoe -hen the 5%#!oee5 h5o!a,on# %n >u%t Tua #tu!tue

off#hoe to the noth of the a5ua I#lan5 %n A*%l 2001/ The te#te5 a# +u!h a# ;2OPD 200 >CPD an5 ?/0 CFGPD fo+ @uun$ III II !a,onate# of >u%t Tua81-ell/ In A*%l an5 4une 2001 Gulf @eta*an$ e*eate5 the #u!!e## -hen the 5%lle5

Paan$81 an5 4en$$olo81 -ell#/ Paan$81 te#te5 17/< CFGPD an5 1


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Ple%#to!ene !la#t%! an5 !a,onate #e5%+ent# of Bono!olo @a-en$an (@aen Le5o

un5u) Pa!%an an5 L%5ah fo+at%on# -ee 5e*o#%te5 afte that -%th%n 5e*o#%t%onal

en%on+ent# an$%n$ fo+ 5ee* -ate to +a$%nal +a%ne8non +a%ne u*-a5#/

SEDIME'$#$IO' O) O&I!O-MIOCE'E C#RBO'#$ES

>e%n$ lo!ate5 at the #outhea#ten +a$%n of the Sun5alan5 the Ea#t 4aa >a#%n -a# %!h

%n !a,onate #e5%+entat%on/ The +o#t eten#%e !a,onate 5e*o#%t%on too *la!e %n the

Ol%$o8%o!ene 5u%n$ -h%!h !a,onate #e5%+ent# of the @uun$ Fo+at%on -ee5e*o#%te5/ Pe8Ol%$o!ene *alaeo$eo$a*h%! !onf%$uat%on #ton$l !ontolle5 5e*o#%t%on

of the @uun$ !a,onate#/ Eten#%e !a,onate ,u%l5u*# $e- on the h%$h# an5 #hale#

-ee 5e*o#%te5 %n the ,a#%nal lo-#/ Reefal 5eelo*+ent o!!ue5 %n *la!e# alon$ the

faulte5 +a$%n# of the ,a#%n an5 alon$ the #helf e5$e/

The @uun$ Fo+at%on fo+ the ol5e#t to the oun$e#t %# 5%%5e5 %nto #eeal un%t# 6

@uun$ III @uun$ II (,oth a# Lo-e @uun$ %n on#hoe ,a#%n) an5 @uun$ I (**e

@uun$)/ The ,a#al @uun$ III %# a !la#t%!8%!h e$e##%e #euen!e/ @uun$ II %# atan#$e##%e #euen!e of #hallo- -ate !a,onate# an5 !al!aeou# #hale# -%th lo!al%e5

!a,onate ,u%l58u*# oe h%$h aea#/ > Eal %o!ene +o#t of the e$%on -a#un5e$o%n$ !a,onate #e5%+entat%on 5e*o#%t%n$ @uun$ I !a,onate#/ .%$h8ene$ !lean

l%+e#tone# an5 !o++on eefal ,u%l58u*# 5eelo*e5/ @enon (1?;7) #tu5%e5 the

*alaeo$eo$a*h of @uun$ I !a,onate# an5 %5ent%f%e5 fou #ett%n$# 6 (1) a 5ee* -ateea#t8-e#t ten5%n$ o*en +a%ne !la#t%! ,a#%n %n the #outh (the Ea#t 4aa8a5ua >a#%n)H

(2) an eten#%e ea#t8-e#t *o#%t%e aea of #hallo- -ate !a,onate 5e*o#%t%on to the

noth (the Ea#t 4aa8a5ua Shelf) !haa!te%e5 , a -ae8-a#he5 h%$h ene$ ,an

e5$e alon$ the #outhen +a$%nH (3) a #hallo- ,a#%nal aea (the Cental Dee*) of o*en+a%ne f%ne !la#t%! an5 lo- ene$ l%+e#tone 5e*o#%t%onH an5 (:) a nothea#t8#outh-e#t

ten5%n$ %5$e (the 4S 1 R%5$e) to the noth-e#t of the Cental Dee* !haa!te%e5 ,

eten#%e #hoal -ate !a,onate 5e*o#%t%on/

Eal %o!ene Tu,an an5 Ran!a !a,onate# en5e5 a #e%e# of Ol%$o8%o!ene !a,onate

#e5%+entat%on/ The Tu,an *latfo+ an5 eefal !a,onate# -ee 5e*o#%te5 oel%n$ the+%5 Eal %o!ene 5ee*8-ate Tu,an #hale#/ Eten5%n$ off#hoe the eef# ae !alle5 a#

the Ran!a eef# 5eelo*e5 aoun5 the +a$%n# of the Noth a5ua Platfo+ off the

noth !oa#t of the a5ua I#lan5/

PE$RO&E,M SS$EM

Re!ent h5o!a,on 5%#!oe%e# -%th%n the Ol%$o8%o!ene !a,onate# of the Ea#t 4aa>a#%n efle!t the effe!t%ene## of the elate5 *etoleu+ ##te+ %nol%n$ +atue #ou!e

o!# (%t!hen aea) +%$at%on *ath-a# $oo5 !a,onate e#eo%# e#%l%ent #eal# an5

$oo5 #tat%$a*h%! ta*#/ Th%# %# #u**ote5 -%th +at!he5 t%+%n$ of $eneat%on8+%$at%on8ta**%n$ an5 $oo5 *e#ee5 a!!u+ulat%on/

The %t!hen aea# $eneat%n$ h5o!a,on# fo 5%#!oe%e# of un$ Pan$ah (Pe+%e

1??9) S%5au (Pe+%e 2000) @E823 > (@o5e!o 2000) @E813 @E82: (@o5e!o 2001)

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>u%t Tua Paan$ an5 4en$$olo (Gulf 2001) ae the Cental Dee* an5 South a5ua

Su,8>a#%n/ Sou!e o!# ae o$an%! %!h #hale# (0/92 to 3/? K TOC) an5 #o+e !oal# of

the Eo!ene N$%+,an$ Fo+at%on/ The #ou!e o!# ae of +a$%nal +a%ne 5elta%! an5la!u#t%ne o%$%n/ atuat%on #tate5 at the %55le %o!ene , ea!t%at%on an5 ene-e5

#u,#%5en!e of +an 5e*e##%on aea# !au#%n$ futhe ,u%al/ .5o!a,on# +%$ate5 fo+

%t!hen aea# %nto the @uun$ !a,onate ta*# thou$h !a%e ,e5# lateall o thou$hfault# et%!all/ On#hoe 5%#!oe%e# of Re+,an$ (Co*ae 1???) -a# #ou!e5 , the

Eal %o!ene Tu,an #hale# 5e*o#%te5 at the Pat% Tou$h/ On#hoe 5%#!oe%e# of >anu

%* (Eono,%l 2001) an5 Suo-at% (4O> Peta+%na8Santa Fe Tu,an 2001) -ee#ou!e5 , Eal %o!ene Tu,an #hale# 5e*o#%te5 %n lo- aea# flan%n$ the Ea#t Ce*u

.%$h/ O$an%! !ontent of the Tu,an #hale# an$e fo+ 1/0 " 2/:< K TOC/ On#hoe

+atu%t %# 5o+%nate5 , the %55le to Late %o!ene %ne#%on alon$ the Re+,an$8

a5ua one/ Sou!e# 5e*o#%te5 at the flan of %nete5 #tu!tue# ,e!a+e +atue 5ue to#u,#%5%n$ %nto the o%l -%n5o- , %#o#tat%! !o+*en#at%on of the u*l%ft %ne#%on/ Late

Eo!ene N$%+,an$ #hale# ae al#o #%$n%f%!ant #ou!e o!# %n th%# aea/ Cha$%n$ of

h5o!a,on# too *la!e thou$h lateal +%$at%on , !a%e ,e5# o , %ntefa!e#

,et-een **e @uun$ e#eo% an5 Tu,an #ou!e# a# -ell a# thou$h fault# fo+N$%+,an$ #hale#/ o5eate to #%$n%f%!ant !ontent of CO2 !haa!te%e# the on#hoe

5%#!oe%e# an5 %# !on#%5ee5 to a##o!%ate -%th ol!an%! a!t%%t %n th%# aea o -%ththe+al 5e!o+*o#%t%on of !a,onate #ou!e# e#eo%#/

The @uun$ IIIII !a,onate# hae +o5eate +at% *oo#%t that ha# ,een enhan!e5lo!all , fa!tu%n$/ The aea$e *oo#%t %# 23 " 2< K/ Aea$e *e+ea,%l%t %#

e!ellent (170 +D %n Ca+a f%el5)/ The @uun$ I eef# eh%,%t $oo5 to e!ellent e#eo%

!haa!te%#t%!# ( *oo#%t 20 " 30 K an5 *e+ea,%l%t%e# u* to 1?: +D)/ Ol5e #tu!tue#

an5 a##o!%ate5 #tat%$a*h%! ta*# #u!h a# the eef# of the @uun$ #euen!e# often !onta%nh5o!a,on#/ A e$%onal #eal fo e#eo%# of the @uun$ I %# *o%5e5 , -%5e#*ea5

an5 th%! Tu,an Fo+at%on !la#tone#/ Intafo+at%onal #eal# al#o lo!all 5eelo*e5 fo

the !a,onate e#eo%# of the @uun$ II an5 @uun$ III/ an of the e!ent 5%#!oe%e#ta$ete5 %o!ene !a,onate ,u%l5u*# f%n$%n$ #helf *latfo+#/ >u%t Tua of Gulf

Re#ou!e# ho-ee fo!u#e5 on *latfo+ l%+e#tone# e+ote fo+ the eefal ,u%l5u*#/

Poo#%t -a# e*e!te5 fo+ e*eate5 e*o#ue on the !e#t of the ol5 a5ua Platfo+an5 h5o!a,on +%$at%on !oul5 ente th%# aea lateall thou$h *oou# an5 *e+ea,le

@uun$ !a,onate# a# -ell a# %a !a%e ,e5# %n the !la#t%! #e!t%on oel%n$ ,a#e+ent/

F%n$%n$ eef aea# e+a%n *o#*e!t%e ,ut #u!!e## at >u%t Tua !onf%+# e+a%n%n$

*otent%al %n #ta,le *latfo+ aea# 5%#tant fo+ the #helf e5$e ,u%l5u*# (Cau$he 2001)/

CO'C&,SIO'S

Re!ent %nten#%f%e5 e*loat%on on Ol%$o8%o!ene @uun$8Pu*uh8Tu,an8Ran!a

!a,onate# of the Ea#t 4aa >a#%n ha# e#ulte5 %n #%$n%f%!ant 5%#!oe%e# an5 a55#

h5o!a,on e#ee# %n e!e## of 990 >O an5 700 >CFG/ D%#!oe%e# -%th%n Ol%$o8%o!ene !a,onate# of the Ea#t 4aa >a#%n efle!t the effe!t%ene## of the *etoleu+

##te+ %n!lu5%n$ aa%la,le %t!hen aea# an5 +%$at%on *ath-a# $oo5 !a,onate

e#eo%# #eal# an5 ta*# a# -ell a# +at!he5 t%+%n$ of $eneat%on8+%$at%on8ta**%n$

an5 $oo5 *e#eat%on on a!!u+ulat%on/ Ne- #e%#+%! te!hnolo$ an5 $eolo$%!al !on!e*t#


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!ont%,ute +o#t to the e!ent 5%#!oe%e# of the Ol%$o8%o!ene !a,onate# of the Ea#t

4aa >a#%n th%# al#o #ho-# that ol58-oe5 ,a#%n %# al-a# o*en fo ne- e*loat%on/

#C+'O*&ED!ME'$S

The *a*e %# +a%nl ,enef%te5 fo+ +ate%al# *o%5e5 , an5 5%#!u##%on# -%the*loat%on%#t# -o%n$ %n the Ea#t 4aa >a#%n (Gulf @eta*an$ @o5e!o Be#t a5ua

Pe+%e un$ Pan$ah Eono,%l Ce*u 4O> Peta+%na8Santa Fe Tu,an Co*ae

>loa Peta+%na 4a-a T%+u an5 4O> Peta+%na8E#*an a5ua)/ The +ana$e+ent ofE*loat%on Peta+%na PS (ana$e+ent of Po5u!t%on Sha%n$) %# a!no-le5$e5 fo

*e+%##%on to *u,l%#h the *a*e/

RE)ERE'CES

>an#5en P/4/E/ an5 atthe-# S/4/ 1??2 Stu!tual an5 #tat%$a*h%! eolut%on of the

Ea#t 4aa Sea In5one#%a Proceedings Indonesian Petroleum Association 21#t

annu/ !on/ */ :1;8:ennet e5/Indonesian Petroleum Association (IPA) Newsletter June 2! */ 78;/

.a%# / 2001 E an5 P h%$hl%$ht# 4anua to a 2001 %n / >ennet e5/ Indonesian

Petroleum Association (IPA) Newsletter June 2! */ :8


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