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Tertiary Carbonate Reservoirs in Indonesia1

By
G. A. S. Nayoan
G. A. S. Nayoan
2
PERTAMINA, Jakarta, Indonesia.
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Arpandi
Arpandi
2
PERTAMINA, Jakarta, Indonesia.
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M. Siregar
M. Siregar
2
PERTAMINA, Jakarta, Indonesia.
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Published:
January 01, 1981

Abstract

Hydrocarbon production from Tertiary carbonate reservoirs accounted for about 10% of daily Indonesian production at the beginning of 1978. Environmentally, the reservoirs appear as parts of reef complexes and high-energy carbonate deposits within basinal areas situated mainly in the back arc of the archipelago. Good porosities of the reservoirs are represented by vugular/moldic and intergranular porosity types. The reservoirs are capable of producing prolific amounts of hydrocarbons: production tests in Salawati-Irian Jaya reached maximum values of 32,000 b/d, and in Arun-North Sumatra tests recorded 200 MMcf gas/day. Significant hydrocarbon accumulations are related to good reservoir rocks in carbonates deposited as patch reefs, pinnacle reefs, and platform complexes.

Exploration efforts expand continuously within carbonate formations which are extensive horizontally as well as vertically in the Tertiary stratigraphic column.

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Contents

AAPG Studies in Geology

Energy Resources of the Pacific Region

Michel T. Halbouty
Michel T. Halbouty
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American Association of Petroleum Geologists
Volume
12
ISBN electronic:
9781629811802
Publication date:
January 01, 1981

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