ccop eppm p1w6 : north sumatra – mergui basin case …assalamualaikum and a very good morning to...
TRANSCRIPT
Malaysia Team:
Azhar Yusof
M Razali Che Kob M Farizanuddin Jaapar
Noor Farinda Salim *Khairil Azhar Ghazali
Petroleum Management Unit, PETRONAS
CCOP EPPM P1W6 :
North Sumatra – Mergui Basin Case Study : Project Progress
4th – 7th September 2012 Labuan, Malaysia
Presentation Outline q
q
q
q
q
q
q
EPPM P1 Basin Analysis Workflow
BASIN SCALE
Basin Evolution History (Basin Evolution Evaluation)
Regional Structural Trends (Structural Trend Analysis)
Basin Architecture (Regional Structural Mapping)
Petroleum System (Petroleum System Analysis)
PLAY SCALE
Chronostratigraphy (Sequence Stratigraphy
Analysis)
Paleogeography (Seismic Facies Analysis)
Play-types Identification (Play Assessment and Risking)
Assignment
• Indonesia - 2D basin modeling and structure identification • Thailand - Construct schematic structural cross section - Back-stripping of each horizon • Malaysia - Well correlation - Chronostratigraphic chart - Seismic facies mapping - Common risk segment (CRS) map
Study Area and Data set
Study Area
International Boundary
W9 -C -1
SIKAO-1
SINGA BESAR -1
NSB C-1 GPM -1
LANGGUN TIMUR -1 PM320
PM320
Indonesia Malaysia
Thailand
• Exploration Wells – Singa Besar-1
(Malaysia) – Langgun Timur-1
(Malaysia) – NSB C-1
(Indonesia) – GPM-1
(Indonesia) – W9C-1 (Thailand) – Sikao-1
(Thailand) Seismic Lines:
Indonesia 12 seismic lines Thailand 4 seismic lines Malaysia 2 seismic lines
Previous Results 1. Correlation of Wells:
– Singa Besar-1 – Sikao-1 – W9C-1 (Malaysia-Thailand) – Langgun Timur-1 – NSBC-1 – GPM-1 (Malaysia-Indonesia)
2. Chronostratigraphic chart across Malaysia, Thailand and Indonesia
3. Seismic Facies Map: – Two (2) seismic facies map – Top Upper Miocene
Keutapang/Thalang and Top Middle Miocene Baong/Trang Formations that covers Indonesia & Thailand
– Geoseismic sections
4. Common Risk Segment (CRS) map for Upper Miocene Keutapang/Thalang and Top Middle Miocene Baong/Trang Formations
Stratigraphic Correlation : Malaysia - Thailand ThailandThailand Singa Besar-1 Sikao-1 W9-C-1
9 5/8’
13 3/8’
9 5/8’
20’
Zone NN11
Zone NN12
20’
13 3/8’
Top Keutapang/Thalang
61 km 173 km
Malaysia Thailand
Top Basement
Top Basement
W9C-1
Sikao-1
Singa Besar-1
60 km
Legend :
Sandstone Siltstone Mudstone
Limestone
Dolomite
Casing shoe
Conglomerate
Volcanic/ Metamorphic
SE NW
Langgun Timur-1 NSBC-1 GPM-1 195 km E W 60 km
Terminated at Seabed
Top Peutu SB
SB
13 3/8’
9 5/8’
20’
Malaysia Indonesia
Legend :
Sandstone Siltstone Mudstone
Limestone
Dolomite
Casing shoe
Conglomerate
Volcanic/ Metamorphic
GPM-1 NSBC-1
60 km
Langgun Timur-1
Stratigraphic Correlation : Malaysia - Indonesia
NSBC-1
Langgun Timur-1
60 km
GPM-1
SOUTHEAST NORTHWEST
PLEISTOCENE
LATE OLIGOCENE
LATE MIOCENE
MIDDLE MIOCENE
EARLY MIOCENE
EARLY OLIGOCENE
LATE PLIOCENE
EARLY PLIOCENE
W9C-1 SIKAO-1 SINGA BESAR-1 GLOBAL
SEA LEVEL
200 -100 N S
UM
ATRA
BAS
IN
EQU
IVAL
ENT
JULU RAYEU
SEU
RULA
BA
ON
G
BELU
MAI
/ PE
UTU
SY
NRI
FT/
BAM
PO
AGE
IN M
A
NP23
NP24
NP25
NN1
NN2
NN3
NN4
NN5
NN6
NN7
NN8
NN9 NN10
NN11
NN12
NN13 & Above
P21
P22
N4
N5
N6 N7
N8
N9 N10 N11
N12
N13
N14
N15
N16
N17
N18 & Above
FORA
M Z
ON
E
NN
ZO
NE
PERI
OD
/ EP
OCH
PRE-TERTIARY
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
SYNRIFT
NON-DEPOSITION/EROSION
NON-DEPOSITION/EROSION
KEUTAPANG/THALANG
BAONG/TRANG
SEURULA/TAKUA PA
PRE-TERTIARY BASEMENT
Chronostratigraphic Chart
EAST WEST
PLEISTOCENE
LATE OLIGOCENE
LATE MIOCENE
MIDDLE MIOCENE
EARLY MIOCENE
EARLY OLIGOCENE
LATE PLIOCENE
EARLY PLIOCENE
GPM-1 NSBC-1 LANGGUN TIMUR-1
SYNRIFT
BAONG/TRANG
PEU
TU
GLOBAL SEA LEVEL
200 -100
KEUTAPANG/THALANG
SEURULA/TAKUA PA
N S
UM
ATRA
BAS
IN
EQU
IVAL
ENT
JULU RAYEU
SEU
RULA
BA
ON
G
BELU
MAI
/ PE
UTU
SY
NRI
FT/
BAM
PO
AGE
IN M
A
NP23
NP24
NP25
NN1
NN2
NN3
NN4
NN5
NN6
NN7
NN8
NN9 NN10
NN11
NN12
NN13 & Above
P21
P22
N4
N5
N6 N7
N8
N9 N10 N11
N12
N13
N14
N15
N16
N17
N18 & Above
FORA
M Z
ON
E
NN
ZO
NE
PERI
OD
/ EP
OCH
PRE-TERTIARY
2
4
6
8
10
12
14
16
18
20
22
24
NON-DEPOSITION/EROSION
NON-DEPOSITION/EROSION
NON-DEPOSITION/EROSION
INDONESIA MALAYSIA
26
28
30
32
SYNRIFT SYNRIFT
PRE-TERTIARY BASEMENT
Chronostratigraphic Chart
Facies Mapping Constructed Paleoenvironment maps for Baong/Trang and Keutapang/Thalang Formations using seismic facies analysis, structural maps and well information.
Seismic Facies Analysis
Top Synrift W9C-1
Sikao-1
Singa Besar-1
60 km
GPM-1 NSBC-1
Langgun Timur-1
W9-C-1 DMR95-102 DMR95-150
DMR95-125
E W 0
1000
5000
4000
3000
2000
0
1000
5000
4000
3000
2000
5894m
Top Upper Miocene
Top Synrift
Seismic Facies Interpretaion
Top Synrift
W9C-1 Sikao-1
Singa Besar-1
60 km
GPM-1 NSBC-1
Langgun Timur-1
Colour Environment Interpretation
Coastal to Inner Neritic
Middle Neritic
Outer Neritic to Bathyal
LEGEND:
Carbonate
Erosional Surface
Paleo-environment Map of Middle Miocene Baong/Trang Formations
Colour Environment Interpretation
Coastal to Inner Neritic
Middle Neritic
Outer Neritic to Bathyal
LEGEND:
Carbonate
Erosional Surface
Paleo-environment Map of Upper Miocene Keutapang/Thalang Fms Formation
Potential Reservoir
1. Coastal sand 2. Shallow Marine (Carbonate & Clastics) 3. Slope Fan Turbidite
Common Risk Segment (CRS) Mapping
The CRS maps were constructed using • Paleo-environment maps • Well data • Structural map • Structural Restoration • Results of Basin Modelling
CRS map for Source Rock
Colour Description
High Risk
Medium Risk
Low Risk
LEGEND:
CRS map for Reservoir
Colour Description
High Risk
Medium Risk
Low Risk
LEGEND:
CRS Map for Seal
Colour Description
High Risk
Medium Risk
Low Risk
LEGEND:
Colour Description
High Risk
Medium Risk
Low Risk
LEGEND:
Composite CRS Map
Risking the Plays/Sub-Plays of Miocene Clastics (Baong/Keutapang) Using CCRS Map
The Plays are ranked as below: 1. Shallow Marine
(Carbonate & Clastics) 2. Coastal Sand 3. Slope Fan Turbidite
CCRS map
Paleo-env. Map Keutapang/ Thalang
Paleo-env. Map Keutapang/Trang
PLAY RISK WORKFLOW
Risking and Ranking of Plays
Identify Potential Plays
Gross Depositional Environment Map
Play Fairway & Common Risk Segment Maps
Summary
Potential Play/Sub-Play for Baong and Keutapang are ranked as 1. Shallow Marine (Carbonate & Clastics) 2. Coastal Sand 3. Slope Fan Turbidite
CRS Maps indicate
• Risky source in the basin margin especially in Melaka Platform and Mergui Shelf in the eastern margin
• Reservoir developed in basin margin and proximal slope area. Towards the basin centre no apparent reservoir developed
• The seals rock occurred in the deeper part of the basin, and thin progressively toward the platform and shelf area
• Most part of the basin has been risked as having medium risk and the risky area identified in the basin centre area and less risky in basin margin area
The established play risk workflow can be applied for risking and ranking of
potential plays in the cross border area