seminar nasional geologi
Transcript of seminar nasional geologi
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Awang H. Satyana
(Sr. Manager, Exploration Assessment & Resource Management BPMIGAS)
American Association of Petroleum Geologists (AAPG)
Student Chapter, Gadjah Mada University, Dept. of Geology
Guest Lecture, Yogyakarta 15 October 2011
Tectonics, Structures, and
Implications for Petroleum Systems:
Cases from Indonesia
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Some Basic Terms
Tectonics/geotectonics: a branch of geology dealing with the broad architecture of the outer part of the Earth, that is, the regional assembling of structural or deformation features, a study of their mutual relations, origin, and historical evolution
Bates & Jackson (1987)
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Some Basic Terms
Structures: the general arrangement or relative positions of the rock masses of a region or area, consequent upon such deformational processes as faulting, folding, and igneous intrusion.
Bates & Jackson (1987)
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Some Basic Terms
Petroleum System: a natural system that encompasses a pod of active source rock and all related oil and gas and which includes all the geologic elements and processes that are essential if a hydrocarbon accumulation is to exist . The essential elements include : a petroleum source rock, reservoir rock, seal rock, and overburden rock. The processes are trap formation, the generation-migration-accumulation of petroleum, and preservation of accumulation.
(Magoon and Dow, 1994)
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Physiography of Indonesia : Derived from Tectonics
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Physiographic relief of Indonesia: by Tectonics
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Indonesia : A Geological Beauty and Tectonic Complexity
• van Bemmelen (1949) : “The East Indian (Indonesia) Archipelago is the
most intricate part of the earth’s surface…The East Indies are an
important touchstone for conceptions on the fundamental problems of
geological evolution of our planet…”
• Hamilton (1979) : “Indonesia represents an ideal level of complexity for
analysis within the framework of available concepts of plate tectonics.”
• Hutchison (1989) : “a complex and fascinating region”
• Hall and Blundell (1996) : “SE Asia is probably the finest natural
geological laboratory in the world...”
• Sukamto (2000) : “…Indonesian region…has proved to be very attractive
to the earth scientists…Many earth scientists have attempted to explain
the various unique geological phenomena by theories, hypotheses and
models.”
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Hall (1999)
Present tectonic setting of Indonesia
Hall (1999)
Sundaland
Sahul Land
Indian Oceanic PlateAustralian Plate
Pacific PlatePhllippine Sea Plate
Eurasian Plate
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Plate tectonic
sections across
Western Indonesia
Katili (1981)
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Plate Velocity Map: Evidence of Plate Tectonics
Sunda Platelet
Indo-Australia Plate
Pacific
Plate
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Tectonics of
Indonesia :
evidence from
mantle tomography
Hall and Spakman (2005)
vertical section of P wave
speed to a depth of 2000 km
Maruyama (1999)
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Tectonics of Indonesia: constraints from mantle tomography
P wave speed at 275 km depth slice P wave speed at 1075 km depth slice
Bijwaard et al. (1998), van der Voo et al. (1999), Hall and Spakman (2005)
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Terranes
and sutures
of SE Asia
Metcalfe (1998)
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40 Ma50 Ma 30 Ma
20 Ma10 Ma0
middle Eocene late Eocene mid - Oligocene
Present late Miocene early Miocene
Indonesia : in the making (Tertiary tectonic reconstruction)
Hall (2004)
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Magoon and Dow (1994)
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Magoon and Dow (1994)
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Magoon and Dow (1994)
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Basin classification
Basins are
classified
according to
either their
position within
a plate, or
according to
their structural
/tectonic origin.
Morley (2006)
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Basins on an active margin
Morley (2006)Morley (2006)
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mod. from Pertamina and Beicip (1982, 1985)
INDONESIA BASIN TYPES
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BPMIGAS and ITB (2008)86 basins
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Lemigas (2008)63 basins
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Badan Geologi (2009)128 basins
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Koesoemadinata (2003)
Western Indonesia : Microcontinents collage
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Regional setting of Western Indonesian sedimentary basins
Koesoemadinata and Pulunggono (1971)
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Hall (2007)
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Chronostratigraphic
summary of major
geologic events in
the Cenozoic
Netherwood (2000)
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Stratigraphy of Sundaland Basins
• Middle to late Eocene timing for initial basin rifting and associated fluvio-
lacustrine fill, including the main source rocks.
• Transgression from the middle Oligocene through to the middle Miocene
with fluvial reservoirs being succeeded by the main deltaic and carbonate
reservoirs in the late Oligocene to early Miocene, and regional seals being
deposited in the middle Miocene at maximum transgression.
• Late Miocene through Pliocene compressional structuring events and
increased heat flow associated with the collision of the Australian craton and
collision of the Luzon arc with the Asian plate.
• Although there are gross geological similarities between the Western
Indonesia basins, there are also significant geological differences. These
are primarily controlled by basin position on the Sundaland promontory in
relation to present-day and Cenozoic subduction of the Indo-Pacific
plate northwards beneath Sundaland.
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Sudarmono et al. (1997)
Comparative
Stratigraphy between
western and eastern
margins of Sundaland
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Generalized
physiography and
productive HC
discoveries of the
North Sumatra
basin
Netherwood (2000)
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Caughey and Wahyudi (1993)
Stratigraphic nomenclature of North Sumatra Basin
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Paleogene
depocenters,
generalized
structure and oil
field distribution
for the Central
Sumatra basin
Praptono et al. (1991)
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South Sumatra Paleogene Graben-Halfgraben System
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Generalized structural pattern of South Sumatra Basin
Yulihanto and Sosrowidjoyo (1996)
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Netherwood (2000)
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W - E NATUNA STRATIGRAPHY
IPA Atlas (1991)
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Pertamina BPPKA (1996)
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NE Java Basinal Area Chrono-Lithostratigraphy and HC Occurrences
Bransden & Matthews (1992)
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Top Middle Miocene
Top Basement
Top Middle Miocene
Base Early Pliocene
seabed
TW
T m
secs
100km
N
10 KM
20 KM
seabed
North Makassar Strait
South Makassar Strait
Rifted Structures of the Makassar Straits Basin
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Buildup Leads Sub-Thrust Leads
Thrust Front Leads
SL
West Sulawesi Foldbelt
Makassar Basin
Makassar Straits Play Schematic
or volcanics ?
Primary Play
• Reservoir: Oligocene – Miocene
carbonate buildups on tilted fault-blocks
• Source: Eocene coals with potential
lacustrine facies in grabens
• Seal: deepwater Oligocene-Miocene
shales
Secondary Plays
• Eocene grabens
• Tertiary foldbelt
• Platform carbonate play
• Tertiary deepwater clastics
Satyana (2011)
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Rifted Structures of the Bone Basin
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Gravity/ vertical tectonics hypotheses attribute folding and thrusting to
gravity sliding from the tops and flanks of vertically rising fault blocks,
structural arches, mantle diapirs, and like phenomena (Meyerhoff and Hull,
1996). Consequently, the term gravity tectonics commonly is used in place of
vertical tectonics (de Jong and Scholten, 1973)
Gliding tectonics is also variant to gravity tectonics. Gliding tectonics is
mechanism whereby large masses of rocks move down a slope under
gravitational force, producing folding and faulting of varying extent and
complexity (Allaby and Allaby, 1999)
Gravity Tectonics
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mod. after Pew (1983)
Deformation by Gravity Sliding-Gliding Tectonics
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Parallel Belts of Samarinda
Anticlinorium, Kutei Basin
van de Weerd and Armin (1992)
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Ott (1987)
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Ott (1987)
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Ott (1987)
differential gravity from west to east
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Ott (1987)
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Sketch of SE and
eastern Kalimantan,
showing Upper Kutei and
Lower Kutei basins. The
volcanic centres are
mainly Miocene and
associated with the gold
deposits. Balikpapan sits
within the Mahakam
Delta.
van de Weerd and Armin (1992)
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Pertamina BPPKA (1996)
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West-east section showing migration pathways
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Structural cross section across Tarakan BasinSatyana et al. (1999)
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Tarakan BasinNeogene Stratigraphy
Samuel (1980)
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Gravity Sliding - Gliding Tectonics continued into North Makassar Basin, Makassar Strait in the formation of toe thrusts
mod. after Guritno et al. (2003)
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200 KMS
Luk Ulo
Western Deep
Karangbolong High
Bumiayu-Luk Ulo High
Rembang
Brebes flexure
Semarang flexureTegal diapirs (?)
15
50
00
80
80
triangle zone of tectonic
locked area with maximum
uplift of 2000 meters
isostatic crustal subsidence
isostatic crustal subsidenceN
200 KM
Implications of Wrench Segmentation of Central Java
INDENTATION
INDENTATION
Satyana and Purwaningsih (2002)
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Gravity Sliding- Gliding Tectonics of North Serayu Basin, Central Java
van Bemmelen (1949)
low
er p
lioce
ne
upper
pli
oce
ne
after Guritno et al. (2003)
South North
Satyana and Armandita (2004)
differential gravity from south to north
traps
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Collision
Collision occurs
across a
converging plate
margin when two
masses that are too
light to sink meet at
a subduction zone.
The boundary
between the two
masses is called a
suture zone.
Press and Siever (1998)
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Ideal anatomy of collisional orogen consists of :
foreland basin (pro-foreland)
foreland fold/thrust belt (pro-foreland fold/thrust belt)
suture
internal metamorphic/igneous zone
retro (or back arc) fold/thrust belt (retro-foreland)
Ideal Anatomy of Collisional Orogen
Garzanti et al. (2007)
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Location of Collision Zones
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Drifting and
collision history of
Banggai-Sula
micro-continent
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Sulawesi Crustal Composition
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WEST EAST
Garrard et al. (1988)
Foreland basin development of Banggai-Sula Basin
BANGGAI-SULA
BANGGAI-SULA
EAST SULAWESI
EAST SULAWESI
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Pertamina BPPKA (1996)
Cross section across Banggai collision
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Donggi and Senoro fields : fields at the collision zone of terranes
modified from Haryono et al. (2002)
Banggai-Sula micro-plate
East Sulawesi ophiolite terrane
leading edge of collision
Donggi log type
Donggi
Senoro
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Hill (2005)Triassic – Late Miocene evolution of Seram
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Hill (2005)
Origin of the Seram Collisional Orogen : Late Miocene - Recent
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Kemp (1995)
Duplex – imbricated structures of Seram collision
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Collisional Orogens of New Guinea
Lengguru
Central Range
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Hall (2007)Collision in Papua
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Permian and Jurassic Petroleum System
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Jensey oil seep
Petroleum possibility of Lengguru Belt, Papua
Hill et al. (2002)
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Eisenberg (1993)
Deformation of the Papua Central Range
Granath and Argakoesoemah (1993)
Kendrick and Hill (2002)
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Fields at the Central Ranges of Papua and PNG Schroder et al. (2000)
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Neogene
tectonic history
Northwest - North Shelf of Australia
Arafura Sea
Keep et al. (2006)
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Peck & Soulhol (1986)
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General Structural
Framework of
Australian Passive
Margins
Peck & Soulhol (1986)
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Structural
Elements due to
Mesozoic Rift-
Drift
Peck & Soulhol (1986)
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Hydrocarbon occurrences of northwest shelf of Australia
Edwards et al. (2006)
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Stratigraphy of NW
Shelf of Australia
Pertamina BPPKA (1996)
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Sedimentary basins in Southern Banda Arc – Arafura Shelf – NW Australian Shelf
Pertamina and Corelab (1998)
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Seismic section crossing NW Shelf of Australia to Banda ArcBarber et al. (2003)
Seismic section crossing Browse Basin, NW Shelf of Australia
Hoffman and Palmowski (2004)
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Contents
Regional Tectonics of Indonesia
Introducing Petroleum System
Tectonics and Indonesian Basin Formation
Petroleum from Rifted and Inverted Sundaland Basins
Petroleum from Areas with Gliding Tectonics
Petroleum from Collisional Terranes
Petroleum from Australian Passive Margins
Regional Play Types of Indonesia: Tectonic Controls
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Regional play types of Indonesia Suparyadi and Fletcher (1975)
Deltaic Series
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ISLAND ARC COLLISION- RELATED
MICROCONTINENTAL BLOCKS
Regional play types of Eastern Indonesia Nayoan et al. (1991)
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Regional play types of Eastern IndonesiaNayoan et al. (1991)
COLLISION
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Conclusion
Tectonics controlled basin formation and its petroleum
system, including structure that may hold an
accumulation of oil or gas. There are four groups of
tectonics resulting in proven petroleum systems in
Indonesian basins:
1. petroleum from rifted and inverted Sundaland
basins,
2. petroleum from areas with gliding tectonics,
3. petroleum from collisional terranes, and
4. petroleum from Australian passive margins
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Thank you for your attention.