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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 619 Documents
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Developing Small Scale Flare Gas Recovery Unit To Utilize Not Economically Feasible Gas Flare Yusep K Caryana
Scientific Contributions Oil and Gas Vol 32 No 3 (2009)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.32.3.854

Abstract

The World Bank’s flare gas utilization evaluation in Indonesia (2006) excluded the not economically feasible flare gas to be commercially utilized due to various barriers and economic reasons. To implement No Flare Gas Policy in Indonesia, it is necessary to carry out an analysis on the possibility of the not economically feasible flare gas based on the latest technology development and proximity flare gas market next to existing onshore oil/gas fields producing the flare gas. Small Scale Flare Gas Recovery Unit has been modelled to recover the gas flared and transported the gas to the proximity flare gas market. This concept shows that the not economically feasible flare gas can be commercially utilized in term of small/medium bussiness unit, and therefore No Flare Gas Policy in Indonesia will be achieved.
Carbon Capture And Storage (Ccs) - Enhanced Oil Recovery (Eor): Global Potential In Indonesia Utomo Pratama Iskandar; Ego Syahrial
Scientific Contributions Oil and Gas Vol 32 No 3 (2009)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.32.3.855

Abstract

Total global CO2 emissions from fossil-fuel will still increase in the next ten decades. These are attributed to the heavy reliance of human activities with fossil fuels. The uncontrolled CO2 emissions from combustion of fossil fuels cause the CO2 concentration alteration in the atmosphere. As the result, this phenomenon cause global warming and change the climate globally. In the future, CO2 emissions are predicted in range from 29 to 44 GtCO2/year in 2020. Therefore it is necessary to abate the CO2  missions to the level that would prevent dangerous anthropogenic interference to the global climate system. The growth of energy efficiency improvements, the switch to less-carbon intensive fuels and renewable resources employment is still low in the context CO2 emissions mitigation. Carbon Dioxide Capture and Storage (CCS) as a third option for these mitigation options might facilitate achieving CO2  missions stabilization goals. As a part of the commitment and participation on combating the global warming, Indonesia has signed the Kyoto Protocol in 1998 and ratified it in 2004 through Law No. 17/2004. On the other side, Indonesia oil production has been declining since in the last ten years but demand for this energy is still high. In this frame CCS-Enhanced Oil Recovery (EOR) by CO2 injection might answer the global warming challenges and alongside contribute to increase the oil production in the near future. This paper presents a preliminary study of CCS-EOR potential in Indonesia. A brief explanation of geological setting and reservoir screening for site selection also presented. Then some discussions about CCS-EOR global potential will be highlighted as well as the analysis. It is hoped that this study would provide a standard guideline for determining CCS- EOR potential in Indonesia.
Mitigation Of Carbon Dioxide And Green House Gas Emission From Oil And Gas Industry In Indonesia D.A Ismukurnianto
Scientific Contributions Oil and Gas Vol 31 No 1 (2008)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.31.1.856

Abstract

International concern is now focused on reducing green house gas (GHG) emissions which drive climate change. The use of fossil fuels, either flaring natural gas and burning fossil fuels, are predicted contributing GHG emissions. As a consequence, International cooperation through United Nation Framework Convention on Climate Change (UNFCCC) has pointed to increase policy interest in developing CO2 and GHG emission trading system. The system would allow the countries who have opportunities to reduce CO2 and GHG emission (generally developing countries) and sell or trade GHG emission reduction to the countries (generally developed countries). The second part of this paper will be emphasized on oil and gas reserves, production, refineries,and utilization. Indonesia oil resource as of January 1st, 2006 amounts to about 56.60 BBO, while gas resources as of January 1st, 2006 is about 334.5 TSCF. Indonesia has nine refineries owned by PT Pertamina (Persero) and six refineries owned by private. Indonesia has also voluntary participated in reducing GHG emissions by formulating energy policy, doing research on carbon capture and storage (CCS), and developing innovative projects. This paper will highlight the energy policy, research program and innovative projects for reducing GHG emission from oil and gas activities in Indonesia
Isoprenoid Hydrocarbons As Fingerprints For Identification Of Spill Oils In Indonesian Marine Environment R Desrina
Scientific Contributions Oil and Gas Vol 31 No 1 (2008)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.31.1.857

Abstract

Along with the increasing transport of crude oils to the refinery sites, many accidents of oil spills have been occurred in Indonesian waters. Such spills might be purely an accident but some others are suspected to be deliberately spilled. Nevertheless, both cases need an identification system to trace back the spill source and eventually the spill data can be brought to the court as an evident. Previously, the identification system was conducted through a pattern recognition of n-paraffin hydrocarbons of crude oil samples which are very distinguished from their gas chromatographic (GC) pattern of n-C17, Pristane, n-C18, Phytane, and other nparaffin’s down to n-C30. Unfortunately, some crude oils have similar pattern that matching of two chromatograms could give an ambiguity result. Pattern recognition of isoprenoid hydrocarbons have been developed to characterized crude oils that potentially pollute the Indonesian waters. Differing from the n-paraffin that each hydrocarbon peak can be determined definitely, the developed method does not need to identify each of the isoprenoid hydrocarbons, instead pattern of their chromatographic separation are sufficiently distinguished. GC isoprenoid pattern recognition is made from the isoprenoid peaks that emerge between n-C17 and n- 18. It two crude oils having similar pattern of n-paraffin’s show very distinct pattern of iso-paraffin’s. The method thus can be used as complimentary step in matching the GC pattern of crude oil samples . Although in some cases GC isoprenoid peaks are not completely separated, this would not be disadvantages since their retention time and area can be measured and integrated definitely, respectively. Nevertheless, the separation of iso-paraffin peaks can be easily conducted using a recent GC method namely a comprehensive two dimensional gas chromatography (GCxGC), a method which is recommended to be implemented further in this research.
The Use Of Laboratory Tests To Study Oil Content In Injection Water Which Tend To Form Emulsion Block And Can Cause Plugging In Reservoir Rock Tjuwati Makmur
Scientific Contributions Oil and Gas Vol 31 No 1 (2008)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.31.1.858

Abstract

Oil content plays important role in determining injection water quality before the injection water is injected into reservoir for water flooding need. Determination of oil contents laboratory tests were carried out on five injection water samples from different gathering stations. The results of tests show that two of five injection water samples contain oil contents which fulfill MIGAS guidelines (25 ppm) requirements specification. Whereas, oil contents in the three injection water samples are in a range of 38.00 ppm and 77.00 ppm. The values of oil contents exceed MIGAS guidelines and tend to form emulsion block and cause the occurrence of plugging in reservoir rock.
Nuclear Heat Utilization For Natural Gas Steam Reforming To Produce Hydrogen Djati H Salimy
Scientific Contributions Oil and Gas Vol 31 No 1 (2008)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.31.1.859

Abstract

The assessment of nuclear heat utilization for natural gas steam reforming to produce hydrogen has been carried out. Most of hydrogen production in the world, is produced by steam reforming of natural gas. This process is an endothermic reaction at high temperature that needs a huge amount of heat energy to proceed the reaction. Conventionally, the heat energy needed is supplied by direct burning of fossil fuel. If the huge amount of those heat energy can be substituted by nuclear process heat, some advantages can be obtained such as, reducing combustion of fossil fuels that give implication of significant decreasing of CO2 emission to the environment. On application of nuclear process heat to steam reforming of natural gas, there are some inferior conditions related to the limitation of temperature and pressure provided by nuclear reactor which directly gives impact on lower thermal efficiency (~50%) compared to the fossil-fuelled plant (80-85%). Some modification design and operation of reformer can improve the lack condition, and capable to increase the thermal efficiency of nuclear heated natural gas steam reformer become about 78%.
Comparison Of Local And Import Sands Quality Laboratory Tests Results For Used In Hydraulic Fracturing Operations Tjuwati M; Panca Wahyudi; Supriyatno Supriyatno
Scientific Contributions Oil and Gas Vol 31 No 1 (2008)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.31.1.860

Abstract

Sand quality laboratory tests have been carried out on local and import uncoated sands. Based on results of sand sieve, roundness, sphericity, turbidity, acid solubility and crush resistance at 3000 psi quality tests of import uncoated sand has better quality than local sand. The import sand fulfills API – RP 56 specification requirements and will be able used in hydraulic fracturing operation. Whereas, the local uncoated sand does not achieve API - RP 56 specification requirements.
Interfacial Tension Between Injecting Fluid And Reservoir Oil At Elevated Pressure And Temperature Sugihardjo Sugihardjo
Scientific Contributions Oil and Gas Vol 30 No 1 (2007)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.30.1.863

Abstract

An important parameter of surfactant flooding in enhanced oil recovery (EOR) processes is the interfacial tension (IFT) reduction between the injecting fluid and the reservoir oil. To measure the IFT precisely and accurately at high pressure and temperature, Pendant Drop Apparatus had been set up. IFT between surfactant solution and reservoir oil have been investigated at several different pressure and temperature. The working pressure ranged from 0 psig up to 5000 psig, and the temperature varied from ambient condition to 80oC. The results indicated that the interfacial tension behavior of surfactant solution and reservoir oil was very unique characteristics as the pressure and temperature increase. However, some conclusion can be withdrawn from these experiments. Increasing pressure causes relatively minor change in IFT. On the other hand the rise of temperature tended to raise the IFT much more significant. Since the surfactant solution having unique behavior therefore it is recommended that IFT must be measured in laboratory at the reservoir condition before injecting in to a reservoir.
Gondwanan Palynomorphs From The Paleogene Sediments Of East Java The Evidence Of Earlier Arrival Eko Budi Lelono
Scientific Contributions Oil and Gas Vol 30 No 2 (2007)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.30.2.864

Abstract

The palynological investigation of the Paleogene sediments is based on cutting samples collected from the exploration wells which are drilled in East Java area. The occurrence of pollen Meyeripollis naharkotensis and spore Cicatricosisporites dorogensis in the upper well sections suggests the pollen zone of Meyeripollis naharkotensis which is equivalent to Oligocene age. Meanwhile, the occurrence of pollen Proxapertites operculatus and spore Cicatricosisporites eocenicus below Meyeripollis naharkotensis zone indicates the appearance of Proxapertites operculatus zone within the lower sections which is equivalent to Eocene. In addition, foraminiferal and nannoplankton analyses confirm the Oligocene-Eocene age by identifying the occurrence of letter stage of Te4-Tb and nanno zone of NP20-P25. The appearance of the Gondwanan/Australian elements including Dacrydium and Casuarina with common and regular occurrences throughout the studied sections are controversial as these pollen were firstly recorded in the younger sediments (Early Miocene) of other areas such as Northwest Java sea, South Sumatra and Natuna sea following the collision of the Australian plate and the Sundaland in the latest Oligocene. Furthermore, the absence of these palynomorphs within the Paleogene sediments of Central Java and South Sulawesi strengthens the above assumption. Therefore, in regard to East Java, the appearance of Dacrydium and Casuarina may indicate earlier arrival of the Gondwanan/ Australian fragment in this area compared to that in other areas of Indonesia.
Optimization Of Environmental Control Using Industrial Minerals For Upstream Oil And Gas Activities Djoko Sunarjanto; Supriyatno Supriyatno; Azizah Azizah
Scientific Contributions Oil and Gas Vol 30 No 3 (2007)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.30.3.865

Abstract

Industrial minerals are useful as drilling materials support such as; limestone (MgCaCO3) for filler, bentonite and barite for drilling mud and quartz sand for propping agent. Until now the benefit of them has not been optimized because it is only as building material, and still the mining which cause environmental damage. Concerning the environmental care and to support the movement of using national products of oil and gas activities need innovations and creativities in taking the benefit of those minerals. The alternative that has been chosen such as the effort of the balancing between the national products and big investment in oil and gas. To make condition of bentonite as drilling mud was needed activation and change it to sodium bentonite to improve those mineral suspension by polymer added. Meanwhile industrial development of silica sand as gravel packing and propping agent, have been better within mining activity in Bangka Area. Average quality of silica sand consist SiO2 up of 90 % to satisfy the requirements, but still was quality improved. In few regions in Indonesia overall industrial mineral can be used to support oil and gas activities

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