Post on 07-Feb-2017
pertamina
Bangkitkan Energi Negeri
ME-MJ-MV
1P 2P 2P RiskedME 1.60 11.30 6.29 25 1.57
MJ-29 - - - -MJ-32 0.24 2.03 1.11 39 0.43MJ-36 0.99 8.40 4.60 39 1.79
MV-27A 0.44 2.40 1.38 20 0.10MV-27B 0.22 0.68 0.43 20 0.03
MMC - - - -TOTAL 3.92
TOTAL (ONWJ only) 3.61
SKK Migas GuidanceOOIP, MMSTB
Structure/Zone
RF Oil,%Oil Reserve,
MMSTB
1P 2P 2P RiskedME 144 0.23 1.63 0.91 25 0.2
MJ-29 - 1.79 5.10 3.27 70 2.29MJ-32 1311 0.31 2.66 1.46 39 0.57MJ-36 1400 1.39 11.76 6.43 39 2.51
MV-27A 350 0.15 0.84 0.48 20 0.10MV-27B 350 0.08 0.24 0.15 20 0.03
MMC - 0.35 0.41 0.35 70 0.24TOTAL 5.96
TOTAL (ONWJ only) 5.91
Gas Reserve,
BSCF
Structure/Zone
SKK Migas Guidance
Rs, scf/stb
OGIP, BSCF
RF Gas,%
OOIP and OGIP
OIL
GAS
pertaminaME
Analog Data for ME-MXMX ME Remarks
Zone MMC MMCPr, psi 1163 1120Pb, psi 1096 1090
Rsi, scf/stb 167 144API 23 17.8
ME-1 and MX-1
Capillary Pressure
Relative Permeability (Kr-Sw)
RT 1
RT 2RT 3
RT 4RT 6 RT 5
Relative Permeability (Kr-Sg)RT 1
RT 2
RT 3
RT 4 RT 5 & RT 6
Fluid Model
Simulasi Reservoir
11
SPESIFIKASI MODEL SIMULASI ME
Simulator Type : Black OilStart Date : 24/09/1981System : 3-D & 3 PhaseGrid Type : Cartesian Corner PointGrid Dimension : 117 x 176 x 228 (I x J x K)Total number of cells: 213859Grid Size : 100 m x 100 m x 1 ft
12
DST MATCHING
• Struktur ME memiliki 3 DST namun hanya DST-2 dan DST-3A yang memiliki data.• Konstrain yang digunakan adalah liquid.• Hanya terdapat 1 sumur (ME-1) pada Struktur ME
DSTProduksi Kumulatif
Diff, %Observed
STB, MSCFSimulatorSTB, MSCF
DST-3A Oil 103 103 0.00Gas 16 15 6.25
DST-2 Oil 190 190 0Gas 39 39.5 1.28
13
DST-2 Matching
Oil Rate
Gas Cumulative
Gas Rate
BHP
1 10 100 1000 100000
200
400
600
800
1000
1200
1400
ME_DST-2
Time (Minute)
Pres
sure
(Psig
)
IHPISIP
First Flow Initial Shut in Period 2nd Flow Rig Up for Swab2nd Flow
Flow before acidizing
Flow after acidizing (3rd Flow initial)Rig up for Swab (2 runs)
3rd Flow Final
Pull Packer loose
Final Hydrostatic pressure
No oil flow before acidizing that is why clean up period is same with final period. The period is 8 hours
Final Flow
DST-2 Pressure
23/09/1981• 08.05 : Tool open, very weak bubble• 09.20 : Medium bubble• 09.50 : Commence swabbing• 18.00 : Finish swab, waiting to acidize24/09/1981• 01.00 : Acidizing• 02.06 : Well open to burner• 02.35 : Well dead• 05.50 : Commence swabbing• 08.30 : 516 BOPD, 300 scf/stb,33.6 bwpd,Cl- 32000 • 16.00 : 634 BOPD, 134 scf/stb, 50 bwpd, FTP 61 psi
Sequence DST-2 ME-1
DST-3A Matching
Oil Rate
Gas Cumulative
Gas Rate
Sequence DST-3A ME-1
25/9/1981 • 18.50 : First, only medium blow choke @
choke 1/2• 20.40 : Change choke to 3/4 @ then slight
blow• 05.30 : Rig up to swab @ and• 05.41 : commence swabbing @ Lost swap cup
in tubing and POOH tubing26/9/1981• 16.20 : Open tool• 16.24 : Close tool for ISIP• 17.32 : Open tool for final flow• 17.41 : Commence to swab• 18.00 : Strong blow27/9/1981• 05.00 : Commence to swab• 17.30 : Strong blow• 19.30 : Commence acidizing• 21.05 : Open well to burner, diesel to surface• 21.30 : No indication till 04.30
28/9/1981
• 05.00 : Commence to swabbing
• 05.40 : Oil to surface
• 06.00 : Well heading (40-50 psi) 60% Oil, 40% water 80000 ppm
• 18.32 : Shut in well; wellhead 40-50 psi ; oil 65%,BSW 35%
• 19.13 : Finish pumping acid
• 19.22 : Open well; no flow
29/9/1981
• 01.39 : Slight blow to surface
• 07.29 : Shut in on wellhead
• 08.30 : Open well ½” choke
• 10.30 : 272 BOPD, 178 scf/stb GOR, 186 bwpd CL- 38000, FTP 40 psi
• 18.00 : 268 BOPD, 192 scf/stb, 276 BWPD, Cl- 26000
• 18.00 : Shut in well
OIL (MMSTB)P1 1.632P 11.3OOIP 6.39
Ket.rP1 = rterluar = 390 m r2P = 2.5 x rP1 = 975 mOOIP = 90% P1 + 50% P2
OOIP
Well Static, MMSTBDynamic, MMSTB Diff, %
ME-1 6.29 6.29 0
INISIALISASI
20
PREDICTION
Skenario Pengembangan (semua case disimulasikan 1 Jan 2021 – 1 Jan 2035)
Skenario : 1. 1 (satu) sumur directional + ESP2. 2 (dua) sumur directional + ESP
Constraint BHP Min 180 psiOil rate Max 700 bopd Water cut Max 0.98 Oil rate Min 25 bopd Field oil rate Min 25 x Jumlah well
Constraints:
PREDICTION
Exploration well : ME-1Proposed Development Well : MEA-1, MEA-2
MEA-2 MEA-1
Well Intersection
MEA-1 MEA-2
Skenario : 1 (satu) Sumur Directional + ESP
• Produksi kumulatif :
Skenario : 1 (satu) Sumur Directional + ESP
Jumlah Well Field Type
p (psi) Np (STB) WC akhir
(fraksi) Wp (STB) Gp (Mscf) RF (%) Awal Akhir
1 ME High Deviated 1120 881 938.1 0.83 1596 116.9 20.1
Skenario : 2 (dua) Sumur Directional + ESP
• Produksi kumulatif :
Jumlah Well Well Type Np (MSTB) WC akhir
(fraksi) Wp (MSTB) Gp (MMscf)
2MEA-1 High Deviated 558 0.91 957.6 72.3
MEA-2 High Deviated 984.7 0.83 969.7 121.3
MEA-1
MEA-2
MEA-1
MEA-2
Skenario : 2 (dua) Sumur Directional + ESP
• Produksi kumulatif :
Jumlah Well Field
p (psi) Np (MSTB) WC akhir
(fraksi) Wp (MSTB) Gp (MMscf) RF (%) Awal Akhir
2 ME 1120 776 1542.7 0.87 1927.3 193.6 33.2
Skenario : 2 (dua) Sumur Directional + ESP
pertaminaMJ
Analog Data for MJMJ Remarks
Zone MJ-29Pr, psi 1340Pb, psi -
Rsi, scf/stb -SG gas 0.662
MM MJ RemarksZone MM-33 MJ-32Pr, psi 1428 1450Pb, psi 1428 1450
Rsi, scf/stb 932 1311API 40 45
MM MJ RemarksZone MM-35 MJ-36Pr, psi 1533 1580Pb, psi 1533 1580
Rsi, scf/stb 375 1400API 39.5 45
MJ-1
MJ-1 and MM-2
MJ RemarksZone MJ-29Pr, psi 1340Pb, psi -
Rsi, scf/stb -SG gas 0.662
MM MJ RemarksZone MM-33 MJ-32Pr, psi 1428 1450Pb, psi 1428 1450
Rsi, scf/stb 932 1311API 40 45
MM MJ RemarksZone MM-35 MJ-36Pr, psi 1533 1580Pb, psi 1533 1580
Rsi, scf/stb 375 1400API 39.5 45
MJ-1 and MM-2
MJ-1 and MM-2
Capillary Pressure
Relative Permeability
Relative Permeability
Fluid Model
Simulasi Reservoir
38
SPESIFIKASI MODEL SIMULASI MJSimulator Type : Black OilStart Date : 23/07/1981System : 3-D & 3 PhaseGrid Type : Cartesian Corner PointGrid Dimension : 37 x 72 x 90 (I x J x K)Total number of cells: 239760Grid Size : 100 m x 100 m X 1 ft
39
DST MATCHING
• Struktur MJ memiliki 3 DST yaitu DST-1, DST-3A dan DST-4.• Untuk DST-1 dan DST-3A, konstrain yang digunakan adalah liquid.• Untuk DST-4, konstrain yang digunakan adalah gas.• Hanya terdapat 1 sumur (MJ-1) pada Struktur MJ.
DSTProduksi Kumulatif
Diff, % Observed Simulator STB, MSCF STB, MSCF
DST-1 Oil 1024 1024 0Gas 2440 2370 2.8
DST-3A Oil 108 108 0Gas 3045 3001 6
DST-4 Gas 2207 2207 0
40
DST-1 Matching
BHP Oil
Gas
41
DST-1 Cumulative Matching
Oil
Gas
1 10 100 1000 100000
200
400
600
800
1000
1200
1400
1600
1800MJ_DST-1
Time (Minute)
Pres
sure
(Psig
)
First Flow Initial Shut in Period 2nd Flow
IHP Final Hydrostatic pressure
DST-1 Presssure
Choke ½”
Choke3/4 ”
DST-1 Rate
44
DST-3A Matching
BHP Oil
Gas
DST-3A Cumulative Matching
Oil
Gas
1 10 100 10000
200
400
600
800
1000
1200
1400
1600
1800
MJ_DST-3A
Time (Minute)
Pres
sure
(Psig
)
Flow Final
Final Hydrostatic pressure (1535 psi)
DST-3A Pressure
IHP
DST-3A Rate
Choke ¾”
DST-4 Matching
BHP
Gas
30/07/198106.17 : Tool open; flow water and gas08.15 : Trimmed to separator08.30 : Flow 8 MMSCFD gas, FTP 575 psi, choke ¾”15.30 : End test; Gas rate 6.9 MMSCFD FTP 496 psi, choke ¾”
DST-4 Squence
• Perhitungan In Place pada struktur MJ menggunakan persamaan 90% P1 + 50% P2• Untuk penentuan P1 dan P2 didasarkan pada radius pengurasan sumur pada sumur MRA-4 yang kemudian diaplikasikan ke struktur MJ• Perhitungan cadangan MJ-32 & MJ-36 mengacu sumur MRA-4 dengan radius investigasi 250 m dan MJ-29 750 m
INISIALISASI
Zona1P 2P Deterministik
OIL (MMSTB) GAS(BSCF) OIL (MMSTB) GAS(BSCF) OIL (MMSTB) GAS(BSCF)MJ-29 0.00 1.79 0.00 5.10 0.00 3.27MJ-32 0.24 0.31 2.03 2.66 1.11 1.46MJ-36 0.99 1.39 8.41 11.76 4.60 6.43
STATIK DINAMIK
OIL (MMSTB) GAS(BSCF) OIL (MMSTB) GAS(BSCF)0 3.27 0 3.33
1.11 1.46 1.1 1.54.6 6.43 4.55 6.34
PETA OOIP MJ
MJ-36 MJ-32 MJ-29
52
PREDIKSI
Constraint
Minimum BHP 800 psiNatural
flow500 psi Gas lift
Maximum Oil rate 1000 bopd Natural flow/Gas
liftMaximum water cut 0.98Minimum oil rate 25 bopdMinimum field oil rate 25 bopd x Jumlah well
Constraints:
Skenario Pengembangan (case disimulasikan selama tahun (2021-2035)
Skenario 1 : Dua sumur deviated yang masing-masing memproduksikan minyak pada lapisan MJ-36 dan MJ-32 secara commingle
Skenario 2 : Skenario 1 + pengangkatan buatan (gas lift), dengan penambahan satu string pada salah satu sumur untuk memproduksikan gas pada lapisan MJ-29
MJ-1
MJ-1
MJ-1
MJ-29
MJ-32
MJ-36
SKENARIO
PROPOSED WELL
MJ-36 MJ-32 MJ-29
MJ-36 MJ-32 MJ-29
PROPOSED WELL
MJA-1MJ-1
MJA-2
PROPOSED WELL
Jumlah Well
Field Typep (psi) Np
(MSTB) WC akhir (fraksi)
Wp (MSTB)
Gp (MMscf) RF (%)
REMARKAwal Akhir
2 MJ Natural Flow 1461 1150 2124.6 0.18 162.4 3516.6 37.6 SHUT
2025
SKENARIO (Natural Flow)
SKENARIO (Natural Flow)Performa Sumur MJA-1 :
Performa Sumur MJA-2 :
Jumlah Well
Field Typep (psi) Np
(MSTB) WC akhir (fraksi)
Wp (MSTB)
Gp (MMscf) RF (%)
REMARKAwal Akhir
2 MJ Gas Lift 1461 725 2613 0.59 394.7 6324.7 46.3 SHUT 2026
SKENARIO (Gas lift)
SKENARIO (Gas lift)Performa Sumur MJA-1(Oil string) :
Performa Sumur MJA-1 (Gas string) :
Performa Sumur MJA-2 (Oil string) :
SKENARIO (Gas lift)
Performa Sumur MJA-2 (Gas string) :
pertaminaMV
Capillary Pressure
(MV-27a) (MV-27b)
(MMC)
RT-1 RT-2RT-1 RT-2
RT-1 RT-2
Relative Permeability
RT-1
RT-2
RT-1
RT-2
RT-1
RT-2
(MV-27a) (MV-27b)
(MMC)
Fluid Model: Oil
Fluid Data:Gas Gravity: 0.6Oil API: 26 APIPb: 1300 psiRsi: 0.1534 MSCF/STB
Fluid Model: Gas
Model aquifer
Model aquifer
Aquifer Model: FetkovichVolume Aquifer: 22.89 MMSTB Productivity Index: 500 STB/d/psi
Simulasi Reservoir
71
SPESIFIKASI MODEL SIMULASI MV
Simulator Type : Black OilStart Date : 31/08/1980System : 3-D & 3 PhaseGrid Type : Cartesian Corner PointGrid Dimension : 126 x 137 x 409 (I x J x K)Total number of cells: 7060158Grid Size : 100 m x 100 m
72
CADANGAN
• Perhitungan In Place pada struktur MV mengunakan persamaan 90%P1 + 50% P2
• Dalam perhitungan cadangannya, struktur MV menerapkan radius pengurasan sebesar 250 m (untuk oil) dan 750 m (untuk gas)
• Dengan jumlah In Place tersebut struktur MV dikategorikan sebagai lapangan yang tidak/belum komersil untuk dikembangkan.
Cadangan Zona Oil(MMSTB)
Gas(MMSCF)
P1
MV-27A 0.44 -
MV-27B 0.22 33
MMC - 359
2P
MV-27A 2.4 -
MV-27B 0.68 48
MMC - 417
In Place
MV-27A 1.38 -
MV-27B 0.43 37.2
MMC - 352.1
Total 1.81 389.3
CADANGAN
TERIMA KASIH