Vast geologic basins attract Indonesian oil exploration

Journal Article · Wed Aug 01 04:00:00 EDT 1973 · World Oil; (United States)

OSTI ID:5007385

Soeparjadi, R A; Slocum, R C

The first of 3 installments on Indonesia describes the Sumatra area. North Sumatra contains about 31,000 sq miles on shore and off shore, and has some 27,800 ft of Tertiary sediments. In the Rantau field, 12 to 21 different oil- productive sands up to 90 ft thick lie at from 720 to 2,400 ft. Central Sumatra is the most prolific basin. Here Caltex is producing from 18 fields and has 10 discoveries awaiting development. In May 1973, Caltex produced 1 million bopd; the average for 1973 will be about 870,000 bopd. The Minas field measures 6 x 15 miles, with reserves estimated at 4 billion recoverable bbl. The S. Sumatra Basin with 30,000 sq miles, contains numerous large structures. The SW. Sumatra region awaits further drilling. Overall, in Sumatra, in 1972, 155 exploratory tests were drilled, with a 30% success ratio. Maps and stratigraphic charts of the first 3 regions are given.Production is from Tertiary sediments of excellent reservoir characteristics.

• OSTI ID: 5007385
• Journal Information: World Oil; (United States), Journal Name: World Oil; (United States) Vol. 177:2; ISSN WOOIA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020100 -- Petroleum-- Reserves-- (-1989)
020200* -- Petroleum-- Reserves
Geology
& Exploration
020300 -- Petroleum-- Drilling & Production
ASIA
CENOZOIC ERA
DEVELOPING COUNTRIES
DRILLING
ENERGY SOURCES
EXPLORATION
FOSSIL FUELS
FUELS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
INDONESIA
ISLANDS
MINERAL RESOURCES
OIL FIELDS
PETROLEUM
PETROLEUM DEPOSITS
RESERVES
RESOURCES
TERTIARY PERIOD
WELL DRILLING