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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 4 Documents
 1 
Search results for , issue "Vol 10 No 1 (1987)" : 4 Documents clear
Seismic Stratigraphy Of The Makassar Basin Dr. B Situmorang
Scientific Contributions Oil and Gas Vol 10 No 1 (1987)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.10.1.895

Abstract

Seismic reflection profiles from the Makassar basin have been analysed in terms of seismic stratigraphy. Systematic patterns of reflection terminations indicate the existence of at least three surfaces of discontinuity across the profiles-designated in order of superposition as C1, C2 and C3 - which define the boundaries of four seismic sequences, ie. :-          seismic sequence I      : topped by C1-          seismic sequence II    : the interval between C1 and C2-          seismic sequence III   : the interval between C2 and C3-          seismic sequence IV   : the interval between Cz and the sea floor            Seismic sequence II is dominated by basin slope and basin floor seismic facies whereas seismic sequences II and IV consist of mainly shelf and shelf margin seismic facies. Correlation of seismic sequences with well data facilitates the exposition of basin development, The Late Cretaceous-early Tertiary regional uplift and erosion produced a major unconformity C1, upon which the transgressive facies of seismic sequence II was deposited. A lowstand of sea level due to the so-called intra-Mio- cene orogeny occurred in the upper Early Miocene and produced the C2. Deposition of seismic sequence III is marked by a relative rise of sea level, probably followed by another lowstand of sea level during Mio-Pliocene which formed the C3. The final event is an overall transgression and deposition of seismic sequence IV, with a possible minor lowstand of sea level in Pliocene-Recent,            The occurrence of basin slope and basin floor seismic facies within seismic sequence II suggests that in the pre-Lower Miocene, basin subsidence was slightly greater than the rate of depositions. Since Lower Miocene both subsidence and sedimentation rates were equal and the deposition of shelf and shelf margin seismic facies of seismic sequences III and IV was prevailed in the basin.
OIL POLLUTION ABATEMENT Wahyudi Wisaksono
Scientific Contributions Oil and Gas Vol 10 No 1 (1987)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.10.1.1154

Abstract

To minimize the posibilities of oil pollution, preventive as well as represive action should be consider ed and eventually carried out simultaneousty. Preventive measures are considered in this case for offshore operations. Several repressive methods as well as clean up methods for oil-on-the waters are reviewed. Parameters partinent to the location of the spill related to the methods to be applied should be seriously consi dered.
CARBON DIOXIDE ADSORPTION CAPACITY OF INDONEIAN NATURAL ZEOLITE E. Jasjfi; Edi Janis
Scientific Contributions Oil and Gas Vol 10 No 1 (1987)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.10.1.1155

Abstract

Natural gas is an important commodity for the economy and development of Indonesia. In addition to its riches in petroleum resources, Indonesia is also endowed with other mineral resources, among which is na- tural zeolite.             This paper describes a study made to combine these two resources, the use of zeolite in natural gas processing, specifically for CO, removal by zeolite as solid adsorbent.            The experimental results presented in this paper indicate that this Indonesian natural zeolite has good CO, adsorp tion capacity, although the value is only about one half of that obtained from systhetic zeolite. Both zeolites were shown to follow the Langmuir adsorption iso therms and their parameters were established. These and other relevant data are presented in this paper.
HYDROISOMERIZATION OF CYCLOHEXANE AND N-HEPTANE USING Ni-Mo AND Ni-W CATALYSTS SUPORTED ON SILICA-ALUMINA A.S. Nasution
Scientific Contributions Oil and Gas Vol 10 No 1 (1987)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.10.1.1156

Abstract

An experiment has been carried out to study the influence of hydrogenating site of bi-functional and of butylamine on the hydroisomerization cyclohexane and n-heptane. The observed data show that a high activity of hydrogenating ste of bi-functional catalyst, tends to increase the cataly tic activity of hydroisomeri- zation reaction and n-butylamine acts as catalyst poison, which reduces the isomer products. 

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