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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 5 Documents
 1 
Search results for , issue "Vol 21 No 1 (1998)" : 5 Documents clear
Gas Oil Components And The Effects Of The Changing Gas Oil Quality Requirement A.S. Nasution; E. Jasjfi
Scientific Contributions Oil and Gas Vol 21 No 1 (1998)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.21.1.949

Abstract

The survey of gas oil production and impact of more stringent specification on the catalyst performance of ASEAN refineries conducted in 1996 revealed that a total feedstock of 5,673 MBPSD are processed into 1,131 MBPSD gas oil. This consist of the following product distribution: straight-run gas oil 85.44%, thermal cracked gas oil 2.52% cat. Cracked gas oil 3.50% and hydrocracked gas oil 8.54% on total gas oil products. About 50% of this total gas oil is processed in hydrotreating processes to improve the performanceof diesel oil.This paper reviews the production of gas oil components in ASEAN and the effect of the changing gas oil quality requirement on hydrotreating catalyst performance.
An Indonesian Experience, Consumers’ Demand For Cng Compression Facilities Performance Yusep K Caryana
Scientific Contributions Oil and Gas Vol 21 No 1 (1998)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.21.1.950

Abstract

Compressed Natural Gas (CNG) has been used to fuel vehicles in many countrie, including in Indonesia. However, there are many difficulties to overcome in CNG public acceptance. In Indonesia, one of these may be CNG consumer’s preference for certain CNG refuelling stations over others. Finding causes of this may help increase acceptance of CNG by Indonesian motorists and enable CNG to make a better contribution to achievingthe country’s energy diversification policy. It is hypothesized that the variation in intake pressures at CNG station to be a cause for preference by CNG consumers. This hypothesis is based on the variation in total energy of CNG delivered at the point of sale as a result of CNG compressor capacity. It is found that, when the gas system pressure was less than CNG station intel design pressure, the CNG produced in the fuel tank would not reach its design pressure. Consequently, its total energy per fuel tank and payback period of compression facilities investment was affected.The analysis of CNG acceptance and a correlation with CNG station intel design pressure and gas composition from the consumers’ point of view will examine the following factors:The effect of various intel pressure at CNG stations on the performance of existing CNG compressors and after-cooler.The effect of CNG compressor discharge conditions and after-cooler performance on the total energy of CNG delivered to the fuel tank which in turn affects the heating value of the fuel to the vehicle engines.Evaluation of CNG compressor discharge conditions effecting the payback period of CNG station investment and determination of potential significance to compression facilities acceptance.
Development Of Catalyctic Converter For Unleaded Gosaline Program In Indonesia Oberlin Sidjabat; E. Jasjfi
Scientific Contributions Oil and Gas Vol 21 No 1 (1998)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.21.1.952

Abstract

Recent economic development in Indonesia, as in other ASEAN countrie, has resulted in improved prosperity as reflected by the significant increase in the numbers of motor vehicles, particulary in big cities. This growth in car population and traffic is unfortunately accompanied by increase in not only of the country’s energy consumption but also increased air pollution. Almost 70% of atmospheric pollution in big cities is reported to be contributed by motor vehicles.In view of this situation, the Government of Indonesia has launched the “Blue Sky program” and introduced unleaded gasoline. Indonesia manufacturing industries have responded also by designing “nationalautomobiles” to be fabricated in Indonesia, and to run with unleaded gasoline. Some of these vehicles will be equipped with catalytic converters to reduce exhaust gas emissions.In support of this program, LEMIGAS R/D Center for Oil and Gas Technology is developingits-own catalytic converters that can be fitted into these cars. The work carried out toward this end is outlined briefly in this paper
Co-Generation Technology For High Efficiency Conversion Of Natural Gas Energy In Indonesia D.A. Ismukurnianto
Scientific Contributions Oil and Gas Vol 21 No 1 (1998)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.21.1.953

Abstract

Very high efficiency energy conversion of natural gas can be obtained by simultaneous production of electricity and thermal energy. In industrial countries, this technology has been widely used in various industries, such as pulps, foods, oil refineries, and chemical industries. Moreover, it is becoming very popular and spans a wide spectrum of market, from the relatively small-scale residential and commercial consumers to large industrial plants.In Indonesia, this technology has an open opportunity for application, particulary in support of the country’s energy conservation and “blue sky” programmes. There are obvious reasons of using this technology, the reduction of fuel consumption of about 75%-80%, and the exces electricity production can be sold to the public utility.This paper will generally discuss the technology of gas co-generation, including its characteristic, and the economic and environmental considerations of using gas co-generation in Indonesia.
Application Of Core Analysis Data For Formation Evaluation Herlan Adim
Scientific Contributions Oil and Gas Vol 21 No 1 (1998)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.21.1.954

Abstract

The primary goal of most reservoir evaluation studies is the integration of data from various sources to indentify zones with similar fluid flow characteristic, and to define the areal and lateral continuity of such zones. Core data developed on rock samples recovered from a formation or interest zone which a play vital role in exploration programs, well completion and workover operations and in well and reservoir evaluation. Coring is the only mean of obtaining an actual sample of an oil bearing formation to study. These cores, with proper handling and preservation, are used to obtained data which permit accurate evaluation of the oil or gasreservoirs. This paper presents a practical used of core analysis data for formation evaluation of reservoir hydrocarbon and to provide information that will be of practical value to geologists and engineers involved with the interpretation of core analysis data.

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