[fogri] Flyers Luncheon Talk Petrology of The Tertiary Age Basement Reservoir Tocks in Indonesia
- From: "IAGI Pusat" <iagisek@xxxxxxxxxx>
- To: <indoenergy@xxxxxxxxxxxxxxx>, <geocomputing@xxxxxxxxxxxxxxx>,<geo-res@xxxxxxxxxxxxxxxxxx>, <hagi@xxxxxxxxxxxx>,"Titi Tabusalla" <ipa@xxxxxxxxxx>, <fogri@xxxxxxxxxxxxx>
- Date: Mon, 8 Apr 2002 13:09:08 +0700
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INDONESIAN ASSOCIATION OF GEOLOGISTS (IAGI)
PROFESSIONAL DIVISION LUNCHEON TALK
DATE :
Thursday, April 18, 2002
TIME :
11.30 AM - 13.00 PM
VENUE:
Puri Putri Room
Sahid Jaya Hotel Jakarta
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SUBJECT :
PETROLOGY OF THE TERTIARY AGE BASEMENT RESERVOIR ROCKS IN INDONESIA
SPEAKER :
DR. Y. SUYATNO YUWONO
(Faculty of Earth Sciences and Mineral Technology, ITB Bandung)
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OVERVIEW
Deal with fractured-reservoir rocks is totally realized very difficult =
in order to predict, evaluate, and to solve the relationships of the =
majortectonic trends with the detail fracture fabrics, which provide the =
majority of the porosity and permeability preservation for fluids or gas =
to flow. Basement rock is one of the sweet candidates as the potential =
fractured reservoir in oil and gas industries. Several well-known =
fractured reservoirs are being the primary target in some companies such =
as in the Corridor Block South Sumatra (Gulf Indonesia), Oseil Seram =
(Kufpec), Cuu Long sub basin in southern Vietnam region. Therefore, it =
is very honor forIAGI to invite Pak Yatno to give short presentation on =
his expertise in the basement rock petrology.
ABSTRACT
It is understandable that having a drilling program to penetrate the =
basement sometime requires more budgets, especially if the primary =
objective of the well is much shallower than the basement level. In this =
case, it is very reasonable if we have to take benefits of the samples =
taken from the basement (mostly crystalline rocks) by evaluating them =
properly. The more advanced such studies include petrography, =
radiometric dating, rock chemistry as well as isotopic analysis etc. =
That will provide powerful tools to interpret their petrogenetic =
significance of the basement. Subsequently, the tectonic environment can =
be interpreted in more accurate ways. The common basement rocks within =
the Tertiary Basins in Indonesia can be grouped into two general rock =
assemblages: igneous rocks (included volcanic rocks) and the metamorphic =
rocks. Those two kinds of rock association need different approaches to =
study. The igneous rock assemblage has to be focused intensely in =
chemistry and mineralogy approaches, while the metamorphic is needs to =
be stressed intensely in their mineralogy and textural aspects. The =
crystalline rocks emplaced at such tectonic environment and have =
distinct petrological characteristics. It is very possible to trace =
their tectonic position in time of emplacement if all =
required-petrogenetic data are available. In some cases, the knowledge =
of the petrology of the basement reservoir rocks may lead us to dissolve =
the problem of the reservoir geometry and to identify their geological =
behavior and nature. In this Luncheon Talk, some examples will be =
discussed, especially the igneous ones.=20
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BIOGRAPHY
Y. Suyatno Yuwono was born in Sragen, Central Java on 9 February 1947. =
He was graduated from Geology of UPN Yogyakarta in 1976 and got DEA and =
Doctor from University of Western Brittany, France in 1987. Now, he is a =
lecturer at Department of Geology, Fakultas Ilmu Kebumian dan Teknologi =
Mineral (FIKTM) - Institut Teknologi Bandung (ITB).=20
Some publications:
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1. Petrology of the Pre Tertiary and Tertiary Volcanic Rocks from =
Obi, North Molucca, Majalah IAGI 13 No. 1, 1988.
2. Tertiary and Quaternary Geodynamic Evolution of South Sulawesi:
Constraints from the study of volcanic units, majalah IAGI 13 No. =
1, 1988.
3. Chronology and Petrology of Back-arc Volcanism in Java, =
Proceeding GEOSEA, 1988.
4. Petrology of the Cretaceous Magmatic Rocks from Meratus Range, =
Southeast Kalimantan, Journal SE Asian Earth Sci, Pergamon, Vol 2. No. =
1, 1988.
5. Potassic Volcanism in Central Java and South Sulawesi, =
Indonesia, Journal SE Asian Earth Science Vo. 4 No. 3, 1990.
6. Jurassic to Neogene back-arc Magmatism in Sulawesi, Indonesia:
Geochemical constraints on geodynamic reconstruction, Abstract =
International Symposium on Geology and Environment, Brunei =
Darussalam, 31 January - 2 February, 1996.
7. The Occurrence of Submarine Arc-Volcanism in the Accretion =
Complex of the Lok Ulo Area, Central Java, Bulletin Geology, Vo. 27 No. =
1/3, 1997.
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