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Scientific Contributions Oil and Gas
Published by LEMIGAS
ISSN : 20893361     EISSN : 25410520     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Energy
The Scientific Contributions for Oil and Gas is the official journal of the Testing Center for Oil and Gas LEMIGAS for the dissemination of information on research activities, technology engineering development and laboratory testing in the oil and gas field. Manuscripts in English are accepted from all in any institutions, college and industry oil and gas throughout the country and overseas.
Arjuna Subject : Energi (semua kategori) - Teknologi Bahan Bakar
Articles 10 Documents
 1 
Search results for , issue "Vol 13 No 1 (1990)" : 10 Documents clear
THE SEDIMENTOLOGY OF HYDROCARBON RESERVOIR ROCKS IN INDONESIA, A CASE STUDY FROM THE NORTH SUMATRA BASIN G.K. Lott; Sundoro Sundoro
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1126

Abstract

The North Sumatra backarc basin has been an important hydrocarbon province for more than 100 yrs. High grade light oils and condensates have been produced from sandstone reservoirs in the deltaic Keutapang Formation and the shallow marine sandstones of the Baong Formation. The basin has a high geothermal gradient, which is in the order of 40-50 C/km (compared to 30/km in the North Sea or Gulf Coast areas) and is a result of its position close to the subducting margin of the Indian Ocean Plate.
ORGANIC GEOCHEMICAL STUDIES IN THE NORTH SUMATRA BASIN R. A. Nicholson; S. Soekapradja
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1128

Abstract

Preliminary studies of existing organic geochemical data from the North Sumatra Basin, indicate that anyme of several sedimentary formations may be responsible for the sourcing of indigenous hydrocarbon reserves.
HYDROCARBON RESOURCES ASSESSMENT IN THE NORTH SUMATRA BASIN Mujito Mujito; Sasongko Hadipandoyo; Tatut Hadiwiryono Sunarsono
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1129

Abstract

The assessment of undiscovered oil and gas potential is a crictical aspect of oil exploration, especially in the unexplored basins, although it is also important as a basis for appraising the national’s energy policies and assist long term economic planning.
TECTONIC MAPPING IN NIAS ISLAND USING LANDSAT MSS IMAGERY Muhamad Husen
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1130

Abstract

Nias Island, is one of the best examples of an exposed subduction complex in active are system. The aim of this study was to map the structural features of this tectonically complex area, using a combination of enhanced landsat MSS imagery and ground data.
K-Ar DATING OF SELECTED IGNEOUS SAMPLES FROM THE SIBOLGA BASIN, MEULABOH AND SIMEULUE ISLAND, WESTERN SUMATRA Helen J. Kallagher
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1131

Abstract

As part of a general study of the sedimentation, structure and tectonic evolution of the northern part of the Sumatranforearc basin samples of igneous rock were collected for K-Ar dating from the eastern margin of the Sibolga Basin, and from the outer arc island of Simeulue.
GRAVITY SURVEYS IN THE NORTH SUMATRA FOREARC J. Milsom; Sarjono Dipowirjo; Baizar Sain; J. Sipahutar
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1132

Abstract

Land gravity surveys on the islands of the North Sumatra Forearc have defined regions of high fields and strong gradients, the majority of which seem to be associated with the presence of mafic and ultramafic rocks. The onshore data, obtained in the course of joint LEMIGAS-University of London expeditions, complements marine data obtained by American oceanographic institutes and allows gravity maps to be completed of the whole forearc regine.
A PALYNOLOGICAL STUDY OF THE SAWAHLUNTO FORMATION OMBILIN BASIN, WEST SUMATRA Katherine M. Bartram; Lucilla Nugrahaningsih
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1134

Abstract

Low to moderate yields of well preserved Palunomorphs were recovered from the Sawahlunto Formation, Ombilin Basin, West Sumatra. More than 50 spore-pollen species have been recognised of which many have been corroborated with previously described taxa. The palynological assemblages recovered indicate an Oligocene to lower Miocener rather than Eocene age for the deposition of the Sawahlunto Formation.
SEISMIC STRATIGRAPHY OF THE BAONG AND KEUTAPANG FORMATIONS, NORTH SUMATRA BASIN G. A. Kirby; B. Situmorang; B. Setiardja
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1135

Abstract

Examination of recently acquired seismic data in conjunction with data from boreholes in Pertamina Unit I area, North Sumatra has revealed inconsistencies in stratigraphic nomenclature. Sequences presently called Middle Baong Sandstone are broadly time equivalent to, and contiguous with the lower paris of the Keutopang sequence in the south of the area.
RECENT TECTONIC MOVEMENTS ON THE SUNDA FOREARC C. Vita-Vinzi; B. Situmorang
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1136

Abstract

Geological fieldwork has been carried out by Lemigas – the University of London group in Nias and Simecular Islands in 1986 and 1987.
A STRUCTURAL MODEL FOR NORTH SUMATRA C. J. Tiltman
Scientific Contributions Oil and Gas Vol 13 No 1 (1990)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.13.1.1137

Abstract

The geological evolution of North Sumatra has been controlled by strike slip tectonics troughout most of the Tertiary. The area experienced extensional and transtensional regimers during the Paleogene, rift basins opened up between major wrench faults, and rates of subsidence and sedimentation were rapid.

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