susanto b. nugroho p. sembiring - coordinating … · sembakung tac p.equatorial tac gat...
TRANSCRIPT
%1 1
SUSANTO B. NUGROHO
P. SEMBIRING
7/31/20037/31/2003 22
SEMBERAH
KARANG MUMUS
BINANGAT
SAMBUTAN
TAC. SEMCO
SANGA-SANGA
SAMBOJA
MATHILDA
WKPLAPANGANSANGATTA
WKPPERTAMINA
TANJUNG
PERMIN TRACER
PETA WKP PERTAMINADOH KALIMANTAN
INDEX MAP
Kalimantan
Island
0 50 100 KMSTATUS AGUSTUS 2001
BALIKPAPAN
%1 2
7/31/20037/31/2003 33
CONCESSION MAPKALIMANTAN ISLAND
TUNU
PECIKO
MALAYSIALAP. BUNYU
LAP..TANJUNG
U
TANTA
KAMBITIN
BAGOK
DAHORSELATAN
WARUKINSELATAN
WARUKINTENGAH
TAPIANTIMURTALISMAN
TANJUNG BALIKPAPAN
MAHAKAM BLOCK
LAP. SANGATTA
BUNYU-NIBUNG
TAPA-TERITIP
P.BUNYU
KETERANGAN :TOTAL F.E.UNOCALVICOEXSPANTALISMAN
PESLPERTAMINASEMCOTAC BANGKDLSSTR. NON AKTIF
PER
TAM
INA
HUL
U
NUBI
UNOCALUNOCAL
SANGKIMAH S.
UNOCAL
SANGA-SANGA
BEKAPAI
SISI
ATTAKA
SANGATTA
MUTIARA
SANGA-2
TAMBORA
NILAM
BADAKSAMARINDA
BONTANG
BALIKPAPANYAKIN
SEPINGGAN
TOTALFINAELF
VICO
UNOCAL
EXSPAN
PERTAMINA HULU
TUN
U
NUBI
PECIKO
SEMCOSEMBERAH
SANGATTA S.
UNOCAL
PAMAGUAN
VICO
EXSPAN
HANDIL
SEMBAKUNGTAC P.EQUATORIAL
TAC GATBANGKUDULIS
TARAKANP.TARAKAN
MAMBURUNGAN
EXSPAN
BANGKUDULIS BUNYU TAPA
7/31/20037/31/2003 44
2000 -2001 2002 2003 2004 2005 2006 2007-2008
July 2000 - Apr. 2001I. BUNYU
NIBUNG Reassesment G & R
Agts. 2001 July 2002 Jan 2003II. SANGATTA
Feb. 2001 - Jan. 2002
Reassesment GGR
III. NCF TANJUNG
IV. BUNYU TAPA
V. TANJUNG RAYA
VI. SANGA-SANGA ,SEMBOJA,ANGGANA
VII. STR. NON AKTIF
VIII. SEMBAKUNG
: GEOLOGY, GEOFHYSIC, RESERVOIR: DRILLING : Study Gas,Lifting Method Bunyu: REASSESMENT
Re-assesment GG(deep zone)
3D Seismic & Re-assesment GGR
G2E2NOTE :
Re-assesment GGR
OUTSTEP DRILLING
Agst 2002 - Jan 2003
Study Gas,Lifting Method Bunyu
MULTIYEARS PROGRAM Pertamina DOH Kalimantan
NO. STRUCTUREYEAR
POFD Bunyu Nibung
POFD " NCF Tanjung "
POFD SANGATTA
POFD Bunyu Tapa
Re-ssesment GGR
POFD Tanjung RayaRe-assesment GGR
POFD Sanga-Sanga, Semboja, Anggana
Re-assesment GGR
%1 3
7/31/20037/31/2003 55
SULUSEA
MALAYSIA
KUCH
ING
HIG
H
SUNDA SHIELD
BARITOBASIN
JAVA SEA
ASEM
-ASEM
BASIN
PATERNOSTERSHELF M
AK
ASSA
R T
R OU
GH
TAPIAN TIMUR FIELDTANJUNG FIELD
TARAK AN BASIN
SEMPURNA HIGH
Sembak ung Fie ld
Bunyu Fie ldTarakan Field
MANGKALIHAT RIDGE
Warukin Field
KUTAIBASIN Sangatta Field
SemberahField
Nilam FieldSanga-SangaField
20 0 40 200 KM
PATER NOSTER CROSS HIGH
N
MELAWI BASIN
Kerindingan FieldMelahin Field
Attaka FieldBadak Field
Handil Fie ld
Bekapai FieldSepinggan Field
Physiography of Kutei Basin
7/31/20037/31/2003 66
DELTA MAHAKAM
PALEOCURRENT
%1 4
7/31/20037/31/2003 77
KUTEI BASINTECTONICFRAMEWORK
7/31/20037/31/2003 88
PETROLEUM SYSTEM CHARTSANGATTA SUB BASIN, EAST KALIMANTAN
EPOCH
QUARTERNARY
PLIO CENE
MIO
CE
NE
LA
TE
MID
DL
EE
AR
LY
OLI
GO
CE
NE
LA
TE
EA
RL
YL
AT
EE
AR
LY
-MID
DL
E
EOC
EN
E
PALEOPRE – TERTIARY
BASEMENT
LITHO STRATIGRAPHICUNIT SO
URCE
ROCK
S
OIL
/ G
AS
OC
CU
RE
NC
ES
2
5.2
10.4
13
16
23.5
30
36.5
38.5
AGE
( m y
b p
)
65
53.5
45
40
35
30
20
25
15
5
10
RESE
R-VO
IR
SEAL
ROCK
S
TRAP
HC
GE
NE
-R
AT
ION
.
KAMPUNG BARU
BALIKPAPAN
PULU BALANG
PA
MA
LUA
N
KEDANGO
BERIUN
MANGKUPPA
SST
(San
gat
taFi
eld)
%1 5
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Brief History of Brief History of SangattaSangatta FieldField
!! 1930 : Found by Muller & Ulrich1930 : Found by Muller & Ulrich!! 1939 : First exploration drilling ST1939 : First exploration drilling ST--11!! 1976 : Commence commercial production : 3900 1976 : Commence commercial production : 3900 bopdbopd!! 1979 : Peak production reached : 6000 1979 : Peak production reached : 6000 bopdbopd!! 1996 : 1996 : Infill drillings (3 wells) with no successInfill drillings (3 wells) with no success!! 1997 : 1997 : No drilling activitiesNo drilling activities, , production rate production rate ± 165± 1650 0 bopdbopd!! 2000 : 2000 : ReRe--assesmentassesment G&GG&G (seismic 3(seismic 3--D)D)!! 2001 : 2001 : Start Start outstepoutstep drillingsdrillings
7/31/20037/31/2003 1010
General Geology & Field Condition ofGeneral Geology & Field Condition ofSangattaSangatta
!! Anticline trending North Anticline trending North –– South South !! GrabenGraben in the middle of the structurein the middle of the structure!! Deltaic depositional systemDeltaic depositional system!! Lenses reservoir (limited lateral continuity)Lenses reservoir (limited lateral continuity)!! Approx. 90 reservoirs Approx. 90 reservoirs (main zone 500 (main zone 500 –– 1000 m)1000 m)!! Sandstone reservoir 2 Sandstone reservoir 2 –– 5 m thick5 m thick!! Total wells drilled 139 (Total wells drilled 139 (avarageavarage TD. 1200 m)TD. 1200 m)!! Current prod. 2600 Current prod. 2600 bopdbopd from 40 active wellsfrom 40 active wells
%1 6
7/31/20037/31/2003 1111
BASIC PROBLEMSBASIC PROBLEMS
!! Thinly Thinly interbeddedinterbedded zoneszones!! Difficulties in thin sand to sand correlationDifficulties in thin sand to sand correlation!! IncosistentIncosistent horizon mapshorizon maps!! Infill drilling results were unsatisfactoryInfill drilling results were unsatisfactory!! No extension opportunities defined No extension opportunities defined !! Field declining seems to reach uneconomic level in 5 yrsField declining seems to reach uneconomic level in 5 yrs
7/31/20037/31/2003 1212
0
100,000200,000300,000
400,000500,000600,000
700,000800,000
900,000
1997 1998 1999 2000 2001 2002 2003
(bbl
s)
Production Declining Profile
580,600687,060772,691791,125
2000199919981997
Status Dec. 2000
%1 7
SANGATTA DEVELOPMENT STRATEGYSANGATTA DEVELOPMENT STRATEGY
PETROLEUM SYSTEMRESERVOIR :
• Deltaic Balikpapan Formation Sand
TRAP :
• Structural : Fault (normal-graben).
• Stratigraphic: : P inch Out Balikpapan Formation Sand
SOURCE ROCK :
• Balikpapan Shale, Pulubalang Formation.
• Kutei Basin.
TRAPPING :
• Late Miocene
ASSETDATA
WELL :
• Log : 140 wells
• Well performance (production, pressure)
• C o r e.
• Paleontology
MAP :
• Horizon Map, Net Oil Pay
RESERVE :
• oil : 13,960.70 MSTB.
• G a s : 66,785.60 MMSCF
SEISMIC :
• 3D (1994) : 8 ,6 x 14 ,8 Km2
• 2D
- Quality : bad
- Quantity : ± 60 Km.
CONCEPT DEVELOPMENT
RESERVOIR:
• Pinch out ( Deltaic )
TRAP :
• Strutural
• Stratigraphic
STRATEGY
SHORT TERM :
• Workover job
LONG TERM :
• Reassesment Geology, Geophysic, reservoir engineer ing
• POFD.
Field development optimalization
7/31/20037/31/2003 1414
Well Data(log,core,prod,presr)
VSP / Check Shot
Seismic Data
•Well Seismic Tie•Horizon Picking
Seismic Inversion
•Seq. Strat & Well Log Corr
•Interp. Dep. Environtment
•Petrophysics
•Structure Map
•Isopach Map•Impedance Map•Porosity Map
•Facies Map
•Reservoir Distribution
•Trapping Mechanism
•Reserve Calculation
POFD (Outstep Drilling Proposal)
G & G WORKFLOW
%1 8
7/31/20037/31/2003 1515
SYNTETIC SEISMOGRAM ST-130, ST-11, ST-10 & ST 08
7/31/20037/31/2003 1616
Sequent Stratigraphy of Sangatta FieldBased on Foraminifera Distribution in Well SD-1
%1 9
7/31/20037/31/2003 1717
SAND DISTRIBUTION
IN SANGATTA FIELD
7/31/20037/31/2003 1818
-400
-500
-600
-700
-800
-900
-1000
-1100
-1200
-400
-500
-600
-700
-800
-900
-1000
-1100
-1200
KB 8.9 m
ST-084
SP GR
GR (gAPI)0.0 150.0
SP (mV)-200.0 50.0
DEPTH
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
RESISTIVITY
ILD (ohm.m)0.2 2000.0
SN (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
MARKER
j3
bofj3
j4
bofj4
j5
j-6
j7
j8bofj8
j9
k2
k25
bofk25
k3
k4
k5
bofk5
k6
bofk6k7
k8
bofk8l2
l3
l4
l5
l6
bofl6
l73bofl73
l85
m2
m3m4
m51
m6
m8
bofm8
n2
n3
n5
n8
bofn8
n9
o1o2
o3
o4
o6
o8
o99
p1
p2p3
p4
p5
p6
p65
p7
p71
p9
q2
q3q4
q5
q6
q74a
bofq74a
KB 10.5 m
ST-095
SP GR
GR (gAPI)0.0 150.0
SP (mV)-60.0 0.0
DEPTH
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
RESISTIVITY
ILD (ohm.m)0.2 2000.0
SN (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
MARKER
j3
bofj3
j4
j5
j-6j7
j8
bofj8
j9
k2
k25
k3
k4
k5
bofk5
k6
k7
k8
bofk8
l1
l2l3
l4
l5
l6
bofl6
l73
l85
bofl85
m2
m3
m4
m5
m51
m55
bofm55
m6
bofm6
m8
m9
n2
n3
n5
bofn5
n6
n8
n9
o1
o2
o3
o4
o6
bofo6
o8
o99
p1
p2p3
p4
bofp4p5
p6
p65
p7
p71
p9
q1
q2
q3
bofq3q4
bofq4
q5
q6q7
q74a
bofq74a
KB 11.4 m
ST-017
SP GR
GR (gAPI)0.0 150.0
SP (mV)-60.0 100.0
DEPTH
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
RESISTIVITY
ILD (ohm.m)0.2 2000.0
MLL (ohm.m)0.2 2000.0
SN (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7
MARKER
h7
h85
h9
j1
j2
j3
bofj3
j4
j5
bofj5
j-6
j7j71
bofj71j8
bofj8
j9
k1
k2
k25
k3k31
bofk31
k3.4k4
k5
bofk5
k6
k7
k8
bofk8l2
l3
l4
l6
l7l73
l85
bofl85m1m12
bofm12
m2
m3
m4
m5m51
m55
m6
m7
m8
bofm8m9
n2
n3
n5
bofn5
n6
n8
n9
bofn9o1o2
o3
o4
o6
bofo6
o7
o8
o9
o99
p1
p2p3
p4
bofp4
p5
p6
p65
p7p71
p9
q1
q2
q3
bofq3q4
q5q6
q7
q74a
bofq74a
g
KB 14.5 m
ST-096
SP GR
GR (gAPI)0.0 150.0
SP (mV)-60.0 20.0
DEPTH
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
RESISTIVITY
ILD (ohm.m)0.2 2000.0
SN (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
MARKER
j3
j4
bofj4
j5
j-6
j7
j8j9
k1
k2
bofk2k25
k3
k3.4k4
bofk4k5
k6
bofk6
k8l1
l2
l3
bofl3l4l5
l6
bofl6
l65
bofl65l7l73
bofl73
l85
m1
m12m2
m3
m4
m5m51
m55
m6
bofm6m7
m8bofm8
m9
n2
n3
n45
n5
n6
n8
n9
o1
o2
o3
o4
o6
o7
o8
bofo8o9
o99
p1
p2p3
p4
p5
p6
p65
p7
p71
p9q1
q2
q25
q3
bofq3
q4
q41
q5
q6
q7q74a
bofq74a
KB 18.6 m
ST-072
SP GR
GR (gAPI)0.0 150.0
SP (mV)30.0 80.0
DEPTH
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
RESISTIVITY
ILD (ohm.m)0.2 2000.0
MLL (ohm.m)0.2 2000.0
SN (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
MARKER
j4
j5
bofj5j-6
j7j8j9
k1
k2
bofk2
k25
k3
bofk3
k3.4k4
k5
bofk5k6
bofk6k7
k8
bofk8
l1
l2
l3
bofl3l4l5
l6
l7
l73
l85
m1
m12m2m3
m4
m5
m51m55
m6
m7
bofm7m8
bofm8
m9
n2
n3
n45
bofn45
n5
bofn5
n6
n8
n9
bofn9
o1
o2
bofo2o3
bofo3o4
o6
o7
o8
bofo8o9
o99
p1
p2p3
bofp3p4
p5
p6p65
p7
p71
p9
bofp9q1
q2
q3
bofq3
q4
bofq4q41
q5
bofq5q6
q7q74a
KB 16.1 m
ST-118
SP GR
GR (gAPI)0.0 150.0
SP (mV)-40.0 30.0
DEPTH
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
RESISTIVITY
ILD (ohm.m)0.2 2000.0
MSFL (ohm.m)0.2 2000.0
SFLU (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
MARKER
j3
j4
bofj4
j5
bofj5
j6
j7
j8
bofj8
j9
k1
k2
k25
k3
k4
bofk4
k5bofk5
k6
bofk6k7
bofk7
k8
l1l2
bofl2
l3
bofl3l4
l5
l6
bofl6
l73
l85
m1m2
m3
m4
m5
m51m55
m6
bofm6m7
bofm7m8
bofm8
m9
n2
n3
n5
n55
bofn55
n6n8n9
bofn9
o1
o2
o3
o4
o6bofo6
o7
o8o9
o99
p1
p2
p3
p4
bofp4p5p6
p65p7
p71
p9
q1
q2
q3
bofq3
q4
bofq4q41
q5
bofq5q6q7
q74a
bofq74a
KB 17.0 m
ST-131
GR SP
HGR (gAPI)0.0 150.0
SP (mV)-380.0 20.0
DEPTH
850
900
950
1000
1050
1100
1150
1200
RESISTIVITY
RXO8 (ohm.m)0.2 2000.0
RHOB NPHI
RHO8 (g/cm3)1.95 2.95
HNPO (m3/m3)
0.6 0.0
MARKER
n2
n3
n5
n6
o1
o3
o4
o5
o6
bofo6
o7
o71
o8o9
p1
p2bofp2 p3
bofp3p4
bofp4p5p6p65
0 250 500 750 1000 1250 1500 1750m m
m m
N SSect3
KORELASI STRUKTURSTRATIGRAPHIC CORRELATION (W - E)
%1 10
7/31/20037/31/2003 1919
-300
-400
-500
-600
-700
-800
-900
-1000
-1100
-1200
-1300
-1400
-300
-400
-500
-600
-700
-800
-900
-1000
-1100
-1200
-1300
-1400
KB 10.4 m
ST-028
SP GR
GR (gAPI)
0.0 150.0SP (mV)
-60.0 0.0
DEPTH
225
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
1300
1325
1350
1375
1400
RESISTIVITY
ILD (ohm.m)0.2 2000.0
MLL (ohm.m)0.2 2000.0
SN (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
MARKER
f3
f5
f7
f9
g1
g2
bofg2g3
g35
g4
g7g8
g9
h1h3
h4bofh4
h6
h65h66
h67
h7
h8
h9
h95j1j2
j3
bofj3
j4
j5
j-6
bofj6j7
j8j9
k1k2
k3
k31
k3.4
k4
k5
k6
k7bofk7
k8bofk8
l1l2
bofl2
l25
l3
l35l4l5
l6bofl6
l7l73l75
l8l85
l85m1
m2
m3bofm3
m4bofm4
m5m51
m55
m6m7
m8
bofm8m9m95
n1bofn1
n2
n3
n4
n5bofn5
n6n8
n9o1o1
o2
o3bofo3
o35bofo35
o4bofo4
o5o6
o7o71
o71bofo71
o8
o85
o9
o97
o99
p1p2
p3p4p4p5
p6bofp6
p65
p7
p71
p9q1q2q3q3
q4
q41
q5q6
bofq6q7
q74a
bofq74a
q9
q92
r1
KB 26.4 m
ST-022
SP GR
GR (gAPI)0.0 150.0
SP (mV)0.0 100.0
DEPTH
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
1300
1325
1350
1375
1400
1425
RESISTIVITYILD (ohm.m)
0.2 2000.0MLL (ohm.m)
0.2 2000.0SN (ohm.m)
0.2 2000.0
RHOB NPHI
RHOB (g/cm3)1.7 2.7NPHI (m3/m3)0.6 0.0
FAULT.
F225.0 m
MARKER
f5
f7
f9g1
g2g3bofg3
g4
g7
g8
g9h1
h3
h4
bofh4
h66h67
h7h8
h9h95j1j2j3
j4bofj4
j5
j6bofj6j7j8j9
k1k2
k25bofk25
k3
k3.4
k4
k5bofk5
k6
k7bofk7
k8
bofk8l1
l2
l25
l3
l35
l4
l5bofl5
l6
l7l73
bofl73l8
l85
m1
m12bofm12
m2
m3
bofm3m4
m5
m51
m55
m6
m7
m8
bofm8
m9
m95
n1
n2
n3
n5
bofn5
n6
n8
n9o1
o2
o3
bofo3
o35
bofo35
o4
o5
o6
o7
o71
o8
bofo8
o9
o97
bofo97
o99
p1
p2
p3
p4
p5
p6
p65
p7
p71
p9
q1q3
q2
q4
q41
q5
q6
bofq6
q7
q74a
bofq74a
q9
q91
r1
r2
KB 11.5 m
ST-124
SP GR
SP (mV)-100.0 60.0
HSGR (gAPI)
0.0 150.0
DEPTH
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
1300
1325
RESISTIVITY RHOB NPHI
RHOB (g/cm3)
1.7 2.7
FAULTMARKER
g2
g3
h1
h4
h6
h9
j2
j3
j4
bofj4j5bofj5j-6
j7j8
j9
k1k2
k25k3
k3.4
k4
k5
k6
k7
k8bofk8
l2
l25bofl25
l35
l4
l6l65
bofl65
l73bofl73
l85bofl85
m1m12
m2bofm2m3
m4
m5m51bofm51
m6bofm6
m8bofm8
n2
n3bofn3
n5
n6n8n9
o1bofo1
o2o3
bofo3
o4
o6bofo6
o7
o71
o8
o9
o99p1p2
p3p4
p5
p6p65
p7
p71
p9
q1
q2bofq2 q3bofq3
q4
q41
q5
q6q7
q74a
bofq74a
KB 6.6 m
ST-069
SP GR
GR (gAPI)0.0 150.0
SP (mV)-100.0 60.0
DEPTH
225
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
1300
1325
1350
1375
1400
RESISTIVITY
ILD (ohm.m)0.2 2000.0
SN (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
FAULT
F417.0 m
F535.0 m
MARKER
f3
f7
g2g3
g8
bofg8
h1
h4bofh4
h6
h65bofh65
h85bofh85
h9
h95
bofh95
j2j3
bofj3
j4
j5bofj5
j-6
j7
j8j9
k1k2
k3
k3.4k4k5k6k7
k8
l2bofl2
l3bofl3
l4
l5
l6
l73
bofl73
l85
m1
m2
m3
m4m5m51
m6
m8m9n2
n3
n4
n5
n55bofn55
n6
n8
n9
o1o2bofo2
o3
o35bofo35
o4
o6
o8
o99
p1bofp1
p2
p4bofp4
p5
p7
p9q1q2
bofq2
q3bofq3
q4bofq4q41
q5
bofq5
q6bofq6
q7
q74a
r4
KB 8.8 m
ST-116
SP GR
GR (gAPI)0.0 150.0
SP (mV)-100.0 60.0
DEPTH
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
1300
1325
1350
1375
RESISTIVITY
ILD (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
FAULT
F528.0 m
F6218.0 m
MARKER
f3
f7
g2
g3
h1
h4
h6
h9
h95
j2j3
j4
j5
j7j8j9k1k2
k3
k3.4k4k5bofk5
n2
n3
n4
n45bofn45
n5n55
n6n8
bofn8n9
o1
o2
o3bofo3
o4bofo4
o6o7
o71o8
bofo8
p1p2
p3bofp3
p4
bofp4
p5
p7
p9
q1
q2
q3q41
q4q5q6
q7q74a
bofq74a
r4
s4
KB 5.5 m
ST-078
SP GR
GR (gAPI)0.0 150.0
SP (mV)-100.0 60.0
DEPTH
225
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
1225
1250
1275
1300
1325
1350
1375
1400
RESISTIVITY
RXO (ohm.m)0.2 2000.0
RHOB NPHI
RHOB (g/cm3)
1.7 2.7NPHI (m3/m3)
0.6 0.0
MARKER
g2
g3
h1
h4
h6
h9h95
bofh95
j2
j3
j4
j5bofj5
j6
j7j8
j9
k1k2
k25
k3
k3.4
k4
k5bofk5
k6
k7
k8
l2bofl2
l3
bofl3l4
l6bofl6
l7l73bofl73
l85bofl85
m1m2
m3bofm3
m4
m5m51
bofm51m55
bofm55
m6
m8
bofm8m9
n2n3
n4bofn4
n5bofn5
n55
n6n8n9
o1bofo1
o2
o3
o4bofo4
o6o7
o8bofo8
o9
o99p1p2
p4bofp4 p5
p6bofp6
p7
p71
p9bofp9
q1q2
q3bofq3
q4bofq4q41
q6bofq6
q7
q74a
bofq74a
r4
s4
324.88 m 372.46 m 678.36 m 344.6 m 435.13 m
m m
W ESect-D
KORELASI STRUKTUR
q74a
q74a
q6
q6
o8
o8
o35
o35
o3
o3
n5
n5
m3
m3
l73
l73
l25
l25
k8
k8
k5
k5
j6
j6
j3
j3
g2
g2
h4
h4
h4j5
j5
j5
l2
l2
l73
l73
l73
k5
k5
l2
l2
l73
l73
o8
o8
l3
l3
j5
j5g2 g2
g2
h4h4
h4
h95h95
h95
l3
STRUCTURAL CORRELATION (W – E)
7/31/20037/31/2003 2020
RESULT OF RE-ASSESMENT G&G SANGATTA
1. The G & G Study identified stratigraphic- structural trap and defined some extension opportunities :
• S – E Block • Graben block• Deep Zone
2. Revision on Sangatta Blue Print : Multiyears drilling extend to 2008
3. Number of wells to drill multiplied from 6 to 33 wells
%1 11
7/31/20037/31/2003 2121
Well Location Map
Sangatta Field
7/31/20037/31/2003 2222
South – East Extending Area
PLAN OF FURTHER
DEVELOPMENT
2002 - 2008
%1 12
7/31/20037/31/2003 2323
DEVELOPMENT PLAN SANGATTA STRUCTURE
7/31/20037/31/2003 2424
Horizon Map Horizon Map PP--3 zone3 zone
%1 13
7/31/20037/31/2003 2525
BLUE PRINT VS REVISED POFD2002 - 2008
DOH KALIMANTAN
BP RK REAL BP RK BP RK BP RK BP RK BP RK BP RK BP RK
I. * After Reassesment
* 3 3 3* 3 7* 0 6* 0 5* 0 5* 0 4* 0 3* 6 33* 2 0 0 2 2* 0 3* 0 0 0 0 0 0 0 0 4 5* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
5 3 3 5 9 0 9 0 5 0 5 0 4 0 3 10 38
II.`
*- Oil 15 5 8 15 5 15 8 15 5 15 5 5 5 5 5 85 38- G a s 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
*- Oil 20 8 10 20 5 20 8 20 5 20 5 10 5 5 5 115 41- G a s 0 4 4 0 3 0 3 0 3 0 2 0 2 0 2 0 19
*- Oil 3 0 0 3 0 3 0 3 0 3 0 3 0 3 0 21 0- G a s 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
- Oil 38 13 18 38 10 38 16 38 10 38 10 18 10 13 10 221 79- G a s 0 4 4 0 3 0 3 0 3 0 2 0 2 0 2 0 19
38 17 22 38 13 38 19 38 13 38 12 18 12 13 12 221 98T O T A L
February 2003
NCF TANJUNGB U N Y USANGATTA
T O T A L
SANGATTA
B U N Y U
NCF TANJUNG
SUB TOTAL
DRILLING
TOTALNO Remark
2008
WORKOVER
2004 20072002 2003 2005 2006ACTIVITY
7/31/20037/31/2003 26267 reservoirs, 21 m thick7 reservoirs, 21 m thick----trtr438438OFOF741.5741.5--745.5745.5ll--7373STST--138138
7 reservoirs, 20 m thick7 reservoirs, 20 m thick------755755OFOF1135.51135.5--11381138pp--3 3 STST--137137
11 reservoirs, 43 m thick11 reservoirs, 43 m thick----55420420OFOF709709--711711ll--22STST--135135
10 10 resservoirsresservoirs, 30 m thick, 30 m thick----0.50.5519519SP/OFSP/OF712712--716.5716.5ll--22STST--134134
11 reservoirs, 22 m thick11 reservoirs, 22 m thick142/71/21142/71/210.40.41181581540/6440/64770770--774.5774.5ll--66STST--133133
10 reservoirs, 17 m thick10 reservoirs, 17 m thick5/1/5/1/--88trtr48048032/64"32/64"833.5833.5--835.5835.5mm--3535STST--132132
12 reservoirs, 28 m thick12 reservoirs, 28 m thick140/20/18140/20/1815.415.4trtr50350332/64"32/64"1107.51107.5--1108.51108.5pp--33STST--131131
((mmsmmscfdcfd))(%)(%)((bopdbopd))(inch)(inch)
RemarkRemarkPt/Pt/Pfl/PsPfl/Ps
epepGASGASW.C.W.C.OILOILBEANBEAN(M)(M)
PressPressINITIAL PROD. TESTINITIAL PROD. TESTPERFOPERFO
LAYERLAYERWELLWELL
PRODUCTION TESTSPRODUCTION TESTS
OUTSTEP DRILLINGS SANGATTA FIELDOUTSTEP DRILLINGS SANGATTA FIELD
%1 14
7/31/20037/31/2003 2727
ST-137 well evaluation
Prospect zones based on log analysis, oil shows and well correlationNO. Zone Depth
(M)RXO RT FDC - CNL Oil shows
CSTRemark
1 h-95 522.5-528 1.5 8-19 3.5 + GAS2 j-4a 562-564 1.2 4-8 8 - GAS
j-4b 564.5-568 1.2 4 1.5 - GAS/OIL3 l-6 784.5-786 4 20 2 + OIL4 n-2 943.5-944.5 3 7 1.5 + OIL5 o-9 1095.5-1097.5 3 6-11 1 - OIL6 p-3 1135.5-1138.5 5 30-40 1.5 + OIL7 p-35 1147.5-1149 4 45 3 + OIL
Total prospect zones 7 oil reservoirs ,total thickness 20 meter.Production p-3 zone (1135.5 – 1138 m) Flowing Gross/Nett = 755/755 BOPD
7/31/20037/31/2003 2828
%1 15
7/31/20037/31/2003 2929
7/31/20037/31/2003 3030
NO.(M)
RXO RT Oil showsCST
1 h-95 451-453 2 6 0.1 + OIL2 k-3 610-611.5 3 8 1 + OIL3 l-3 686.5-692.5 6-40 30-50 16 + GAS4 l-73 741.5-745.5 4 15-30 3 + OIL5 n-9 933-936.5 1.5 4 1 + OIL6 o-4 1014.5-1016 2 7 4 + OIL7 p-6 1106-1109 2 10 1 + 477 BOPD, tr wtr
" 7 Prospect zones, total thickness 21.0 meter.
ST-138 well evaluation
Prospect zones based on log analysis, oil shows and well correlation
Zone Depth FDC - CNL Remark
" Production l-73 zone (741.5-745.5 m) 488 bopd, tr wtr
%1 16
7/31/20037/31/2003 3131
7/31/20037/31/2003 3232
%1 17
7/31/20037/31/2003 3333
PRODUCTION PERFORMANCE PRODUCTION PERFORMANCE SANGATTA FIELD 1997 SANGATTA FIELD 1997 -- 20032003
0
100,000200,000
300,000
400,000500,000
600,000
700,000800,000
900,000
1997 1998 1999 2000 2001 2002 2003
(bbl
s)
Total incl. new wellsExcl. New wells
7/31/20037/31/2003 3434
ConclusionsConclusions
!! G&G study back up encouraging results from G&G study back up encouraging results from outstepoutstep drilling drilling programmeprogramme in in SanggattaSanggatta
!! Extension opportunities defined at SE part of existing fieldExtension opportunities defined at SE part of existing field!! Additional reserves 5.3 MMBO were identifiedAdditional reserves 5.3 MMBO were identified!! 234,270 234,270 bblsbbls oil recovered from SE block since 2001 up to oil recovered from SE block since 2001 up to
June 2003 (from 7 wells)June 2003 (from 7 wells)!! Extension of the field life : POFD to 2008Extension of the field life : POFD to 2008
%1 18
7/31/20037/31/2003 3535
Thank You
7/31/20037/31/2003 3636
%1 19
7/31/20037/31/2003 3737
ULTIMATE PRODUCTIONULTIMATE PRODUCTIONDOH KALIMANTANDOH KALIMANTAN
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
Jan
Mar
Mei
Jul
Sep
Nop
Jan
Mar
Mei
Jul
Sep
Nop
Jan
Mar
Mei
Jul
Sep
Nop
2 0 0 3 2 0 0 4 2 0 0 5
-----
> PR
ODU
KSI
(BO
PD)
TAC PESL SbkTAC P-Exsp TrkTAC P-Exsp Sanga-2JOB PTTL TjgBORExist+Rep+Stim+KU
JOB PTTL Tanjung
TAC P-Exspan Sanga-2TAC P-Exspan TarakanTAC PESL Sembakung
OWN – DRILLINGS
OWN – Exist+Rep+Stim+KUPL
7/31/20037/31/2003 3838
EVALUASI BOR PENGEMBANGAN SUMUR ST-131STRUKTUR SANGATTA
• Data lapisan prospek ( analisa petrofisika & korelasi sumur sekitar )
• Hasil Uji Produksi1. Uji Prod. : Lapisan p-4 ( 1119.0 - 1130.0 ) m, hasil air asin Cl- 6500 ppm2. Uji Prod. : Lapisan p-3 ( 1107.0 - 1108.5 ) m, hasil SA-32/64”, Gross = 503 BOPD
KA = tr, Gas = 15.4 Mm3/h, TPP/TKS/TF/Tsep = 10/10/1.5-2/1-2 Ksc
No. Lap Perkiraan Isi KeteranganKandungan
1 p-4 1119.0 - 1130.0 Minyak / Air - Total lapisan prospek2 p-3* 1106.0 - 1108.5 Minyak minyak sejumlah 12 lapisan3 o-9* 1066.0 - 1068.5 Minyak / gas dengan ketebalan 28 meter4 o-6* 1042.0 - 1046.0 Minyak5 o-5* 1032.5 - 1034.0 Minyak - * Lapisan baru (virgin zone)6 m-91 895.0 - 896.0 Minyak / gas7 m-9 889.0 - 890.5 Minyak8 l-3* 723.5 - 724.5 Minyak 725.5 - 726.59 l-73 768.5 - 770.5 Minyak / Air10 k-7* 681.5 - 683.5 Minyak11 k-4* 648.5 - 651.0 Minyak12 k-31* 642.5 - 644.5 Minyak13 k-25* 614.5 - 618.5 Minyak / Gas14 j-35* 510.5 - 512.0 Gas15 j-12 497.0 - 500.0 Gas16 h-9* 474.0 - 483.0 Gas17 g-6 334.0 - 338.0 Gas
Interval (meter)
%1 20
7/31/20037/31/2003 3939
7/31/20037/31/2003 4040
%1 21
7/31/20037/31/2003 4141
EVALUASI BOR PENGEMBANGAN SUMUR ST-132STRUKTUR SANGATTA
• Data lapisan prospek ( analisa petrofisika & korelasi sumur sekitar )
• Hasil Uji Produksi1. Uji Prod. : Lapisan p-2 ( 1113.0 - 1116.0 ) m, hasil minyak SA-16/64”,
Gross = 106.9 BOPD, KA = 15%, Gas = 13.2 Mm3/h,TPP/TKS/TFL : 56 / 3 / 2 Ksc
2. Uji Prod. : Lapisan m-35 ( 833.8 - 835.3 ) m, hasil SA-32/64”, Gross = 480 BOPDKA = tr, TPP/TKS/TF/Tsep = 5 / 1 / - Ksc
3. Uji Prod. : Lapisan k-25 ( 642.5 - 644.5 ) m, hasil SP, Gross = 421.6 BOPD, KA = 3 %.
Perkiraan IsiKandungan
1 p-6* 1155.0 - 1156.0 Minyak / air - Total ketebalan (net HC) 17 meter.2 p-2* 1113.0 - 1116.0 Minyak - * Lapisan baru (virgin zone)3 n-9* 995.3 - 996.3 Minyak 4 o-6* 1056.5 - 1059.5 Minyak 5 m-35* 833.8 - 835.3 Minyak 6 m-2* 811.5 - 812.5 Minyak 7 l-85* 801.0 - 802.0 Minyak 8 k-25* 642.5 - 644.5 Minyak
9 j-6* 566.5 - 568.5 Minyak
10 j-3* 540.3 - 541.8 Minyak
KeteranganNo. Lap Interval (meter)
7/31/20037/31/2003 4242
%1 22
7/31/20037/31/2003 4343
7/31/20037/31/2003 4444
EVALUSI BOR PENGEMBANGAN SUMUR ST-133STRUKTUR SANGATTA
Data lapisan prospek ( analisa petrofisika & korelasi sumur sekitar)
NO. LAP. KEDALAMAN(M)
RXO RT SEPARASIFDC-CNL
INDIKASICUTTING
PERK. ISIKANDUNGAN
123456789
1011
h-8j-3*j-6*
k-31*k-7*l-6*
m-1*m-35n-55o-5*
p-35*
493.5-494.5543-543.5580-583675-678708-710
770-774.5821-823
847.5-849988-992
1053.5-1054.51139.5-1141
78868
105769
10
68
106.510204.5448
15
20.432121224
2-4
-+++++---++
MINYAKMINYAKMINYAKMINYAKMINYAKMINYAKMINYAK/AIRMINYAK/AIRMINYAK/AIRMINYAKMINYAK
KETERANGAN
" Total lapisan prospek minyak minyak sejumlah 11 lapisan dengan ketebalan 22 m" (*) lapisan virgin" Hasil uji produksi :
Lapisan l-6 (770.0 – 774.5)m, hasil SA.40/64”. gross 823 BOPD , KA = 1.0% , gas 0.40 MMSCFD, Pt 10 ksc,Pfl 5 ksc, Psep 1.5 ksc SA.28/64”. gross 604 BOPD , KA = 0.8% , gas 0.21 MMSCFD, Pt 14 ksc,Pfl 2 ksc, Psep 1.0 ksc
%1 23
7/31/20037/31/2003 4545
7/31/20037/31/2003 4646
%1 24
7/31/20037/31/2003 4747
EVALUSI BOR PENGEMBANGAN SUMUR ST-134STRUKTUR SANGATTA
Data lapisan prospek (analisa petrofisika & korelasi sumur sekitar)
NO. LAP. KEDALAMAN(M)
RXO RT SEPARASIFDC-CNL
INDIKASICST
PERK. ISIKANDUNGAN
123456789
10
g-9*h-8*h-9*j-12*k-25*l-2*
m-1*m-8*p-3
p-35*
380.5-381.5470.0-473.0477.5-480.0517.0-521.0641.0-646.0711.5-716.5807.0-808.0890.0-893.0
1120.5-1123.51132.0-1134.5
23335353
134.5
10307
10020
15-3066
138
1217
3.5313
0.12
++++++++++
MINYAKMINYAKMINYAKGASMINYAKMINYAKMINYAKMINYAKMINYAKMINYAK
KETERANGAN
" Total lapisan prospek minyak minyak sejumlah 10 lapisan dengan ketebalan 30 meter." (*) lapisan virgin" Hasil uji produksi : Lapisan l-2 (712.0 – 716.5)m, hasil SP.OF : gross 522 BOPD , KA. 0.5%, 13 SPM, tek. 1.5 ksc, KD
di 706 m , DFL di 522 m
7/31/20037/31/2003 4848
%1 25
7/31/20037/31/2003 4949
7/31/20037/31/2003 5050
EVALUASI BOR PENGEMBANGAN SUMUR ST-135STRUKTUR SANGATTA
Data lapisan prospek (sesuai analisa petrofisik & korelasi dengan sumur sekitar)
NO. LAP. KEDALAMAN(M)
RXO RT SEPARASIFDC-CNL
INDIKASICUTTING
PERK. ISIKANDUNGAN
1 g-4 337.5-338.5 2 6 0.5 - MINYAK/AIR2 g-9* 366.0-370.0 2 5 1-2 - MINYAK/AIR3 h-95 492.5-495.0 3 30 8 + GAS4 j-35* 526.5-529.0 5 7 2 + MINYAK5 j-4* 530.0-534.0 4 20-
3010 + GAS
6 k-4 664.5-667.0 5 5 0.1-1 - MINYAK/AIR7 k-6* 688.0-691.5 3 8-11 2 + MINYAK8 l-2* 709.0-711.0 4 8-14 3 + MINYAK9 l-25* 721.0-722.0 5 6 1 + MINYAK10 l-3 740.0-742.0 - - - + MINYAK11 l-5 758.0-760.0 - - - + MINYAK12 m-5 850.0-854.0 - - - + MINYAK13 m-9 908.0-910.0 - - - + MINYAK14 o-1 1000.0-1004.0 - - - + MINYAK15 o-2 1020.0-1024.0 - - - + MINYAK
KETERANGAN
" Total lapisan prospek minyak sejumlah 15 lapisan dengan ketebalan 43 meter." (*) lapisan virgin ." Hasil uji produksi : Lapisan l-2 (709.0-711.0)m, SP OF : gross 442 BOPD, KA. 2 %,11 SPM, Tek 1.5 ksc, KD di 706 m, DFL di 580 m.
%1 26
7/31/20037/31/2003 5151
7/31/20037/31/2003 5252
%1 27
7/31/20037/31/2003 5353
PRODUKSI ULTIMATEDOH KALIMANTAN
• TAHUN 2003• Own Operation, yaitu :
• Existing+Reparasi+Stimulasi+KUPL• Sangatta = 350 m3/h• Bunyu = 250 m3/h• NCF tanjung = 100 m3/h
• BOR • Sangatta (7 sumur) @ 65m3/h = 455 m3/h • Bunyu (1 sumur) @ 55 m3/h = 55 m3/h
• Sub Total Prod. Own Operation = 1210 m3/h(7,615 bopd)
• Mitra kerja, yaitu :• NSOTanjung Raya (JOB PTTL) = 170 m3/h• NSO TAC Exspan Kalimantan
• Sanga-Sanga area = 250 m3/h• Tarakan area = 150 m3/h
• NSO Lapangan Sembakung (TAC PESL) = 170 m3/h• Total produksi DOH Kalimantan = 1950 m3/h
(12,271 bopd)
7/31/20037/31/2003 5454
PRODUKSI ULTIMATEDOH KALIMANTAN
• TAHUN 2004 (status Nov ‘04)• Own Operation, yaitu :
• Produksi = 871 m3/h• BOR
• Sangatta (7 sumur) @ 65m3/h = 455 m3/h • Bunyu (3 sumur) @ 55 m3/h = 165 m3/h
• Sub Total Prod. Own Operation = 1491 m3/h(9,383 bopd)
• Mitra kerja, yaitu :• Alihkelola Tanjung Raya- JOB PTTL = 1000 m3/h• NSO TAC Exspan Kalimantan
• Sanga-Sanga area = 235 m3/h• Tarakan area = 141 m3/h
• NSO Lapangan Sembakung - TAC PESL = 160 m3/h• Total produksi DOH Kalimantan = 3027 m3/h
(19,049 bopd)