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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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PROSPECT FOR CO2 EOR TO OFFSET THE COST OF CCS AT COAL POWER PLANTS Dr. Ir. Usman
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.94

Abstract

Carbon Capture Storage (CCS) technology has gained confidence in its ability to yield dramatic reductions of CO2 emissions from large stationary emissions sources such as coal-fired power plants. However, the pace of CCS projects has suffered from a less supportive business case. Utilization of CO2 for enhanced oil recovery (CO2 EOR) offers commercial opportunities owing to its economic profitability from incremental oil production offsetting the cost of CCS. This paper describes the prospect of CO2 EOR offsetting the cost of CCS at a coal-fired power plant. A coal-firedpower plant assumed to be commissioned in 2022 is selected as the basis of this study. The Levelized Cost of Electricity (LCOE) of this plant without CCS is estimated at US$ 6.4 cents/kWh and emits around 4.1 MtCO2/year. Integrating CCS to the selected coal power plant imposed additional costs associated with CO2 capture, transportation, and storage systems. The incremental costs are evaluated based on separation of 90%, 45%, and 22.5% of CO2 from the power plant flue gas. Under the 90% capture scenario, the LCOE raised more than double to 15.5 US cents/kWh which is primarily attributed to the energy penalty. A minimal reduction of 0.9 cents/kWh could bring the LCOE down below the ceiling price for geothermal. Reducing the CO2 capture percentage from 90% to 45% could reduce the LCOE to 11.2 US cents/kWh. Lowering the cost to 0.6 cents/kWh or more for this case would result in the LCOE below the state-owned electricity company’s average cost of combined cycle gas turbine in 2012. Selling the captured CO2 under US$ 10 per tonne at the plant gate could help offset the cost. With numbers of new coal-fired power plants expected to be constructed in the near term, integrated coal CCS power plant with EOR is relevant for Indonesia.
STATUS OF THE INDONESIAN OIL AND GAS BLOCKS ON BORDERS WITH NEIGHBORING COUNTRIES Djoko Sunarjanto; Susilohadi Susilohadi; Suliantara Suliantara; Abdul Gaffar
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.95

Abstract

Although revenue from the oil and gas industry is no longer the main source of national income, it is still playing a strategic role. The oil and gas industry is known as a high-tech, a high-risk, and a high-capital industry, on which the country has limited capacity for regional development, especially of the resources in areas located along the national border. The main objective of this research is to closely identify the recent growth centre status of blocks and sedimentary basins located along the national border. The study relies on published reports, studies, and data such as bathymetry map, national geographic and jurisdiction map, and maps of existing oil and gas blocks. All data were managed under a geographic information system application in order to conduct comparative and qualitative analysis of those overlaying data. Some oil and gas blocks that are located near to neighboring countries, such as Singapore, Malaysia, Brunei, Vietnam, The Philippines, Papua New Guinea, East Timor, and Australia have been categorized based on these methods of scoring and ranking analysis to identify new economic centres of growth. Three categories are suggested: very important, important, and ordinary as new growth centres. The Natuna Sea blocks, Iwur, and Timor blocks are considered to be important.
DESIGN OF LUBRICANTS FOR CNG-CONVERTED GASOLINE ENGINES Setyo Widodo; Muhammad Hanifuddin; Milda Fibre
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.96

Abstract

The objective of this study is to develop a lubricant formula for the gasoline engine that has been converted to compressed natural gas (CNG-fueled). The lubricant specification is SAE 15W40 API SL. This study was conducted in six stages, namely; i). lubricant formulation, ii). laboratory scale production, iii). Laboratory analysis, iv). pilot scale production and laboratory analysis, v). test performance through bench test or a road test, vi). final data analysis and evaluation. A laboratory test of physical and chemical properties of lubricants refers to the Indonesian National Standard (SNI), followed by road tests up to the mileage of 10,000 kilometers. The result showed that the lubricant formula obtained can work well to 10,000 kilometers.
CONSTRUCTION AND EXPRESSION
OF QUARTET RECOMBINANT PEPTIDE SURFACTANT FOR EOR APPLICATION Cut Nanda Sari; Usman Usman; Refiana Lestary; Riesa Khairunnisa W.R.; Leni Herlina; Syafrizal Syafrizal; Tati Kristianti; Sony Suhandono
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.98

Abstract

The main drawback of the SUPEL peptide surfactant product which has been developed for EOR application is it isunstable at a high temperature. This research is aimed at generating the prototype of peptide surfactant construction in recombinant by stringing up 4 SUPEL linier sequences. Quartet recombinant technology can produce the peptide surfactant characterized as reversible biosurfactant, which is active at high temperature but inactive at low temperature. Multiple SUPEL Construction (MSC) that was developed in this research is using synthetic DNA and producing SUPEL in 4 sequences that can flip at normal temperature and can open when heated. SDS PAGE analysis results show that MSC construction can be expressed by inducting IPTG and cell harvested at 90°C. This research proves that construction and expression of the SUPEL quartet has been achieved by producing the peptide at an ideal size.
BUFFER REPLACEMENT AND SIMULTANEOUS SACCHARIFICATION AND FERMENTATION ON BIOBUTANOL PRODUCTION?FROM LIGNOCELLULOSIC BIOMASS Devitra Saka Rani; Yanni Kussuryani
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.99

Abstract

Lignocellulosic biomass is excellent feedstock for biofuel such as biobutanol. Bagasse, rice straw, and empty fruit bunch (EFB) oil palm are untapped potential for biobutanol production as gasoline blending/ substitution. However, biobutanol production by fermentation from lignocellulosic biomass is a process that consumes time and energy which leads to high production costs. This research is intended to optimize biobutanol production that reduces production costs, an important factor on an industrial scale. Optimization is conducted by replacing the buffer solution in enzymatic hydrolysis with distilled water and by using Simultaneous Saccharification and Fermentation (SSF). The results showed that the buffer replacement with distilled water can reduce cost by approximately 41,726 IDR/liter hydrolysate. Biobutanol contents from all biomass of bagasse, rice straw, and EFB oil palm are higher using SSF compared to Separate Hydrolysis and Fermentation (SHF). The SSF system can cut production time by 3 days and save electricity of 32.4 kWh.?
EFFECTS OF PETROFILIC MICROORGANISMS AND BULKING AGENT ON HYDROCARBON’S BIODEGRADATION EFFICIENCY Zulkifliani Zulkifliani; Pujawati Suryatmana; Annisa Rosalina Sylvia; Syafrizal Syafrizal
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.100

Abstract

Bioremediation is a method which can be used to reduce the amount of pollutants or toxic substances that damage the environment through the use of microorganisms to remove the contaminants. The purpose of this research is to determine the effects of petrofilic microorganisms and bulking agent on the enhancement of hydrocarbon’s biodegradation efficiency, soil water content, growth rate of petrofilic bacteria and Azotobacter vinelandii. Nine treatments in this research were a petrofilic consortium (Pseudomonas spp., Actinomycetes sp., and petrofilic fungi) and Azotobacter vinelandii (biosurfactan), as well as bulking agent (rice husk charcoal and baglog waste of Oyster Mushrooms). The experiment design used was a randomized block design with three replications, so there were 27 experimental units (microscosmos). The result was that the application of petrofilic microorganisms and bulking agent is the best treatment to enhance the efficiency of hydrocarbon’s biodegradation, the growth rate of petrofilic bacteria, and soil water content. The petrofilic consortium treatment with the highest value of biodegradation efficiency reached 83,9%.
COMPARISON OF BIODIESEL B-20 AND B-30 ON DIESEL ENGINE PERFORMANCES AND EMISSIONS Lies Aisyah; Cahyo Setyo Wibowo; Sylvia Ayu Bethari
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.101

Abstract

Biodiesel is renewable energy that is made from renewable sources such as vegetable oil (palm oil, soybean oil or jathropa oil) through a trans-esterification reaction. Biodiesel can be used as a substitute for diesel fuel or as a mixture with diesel fuel. B-20 and B-30 fuel are a biodiesel mixture with diesel fuel which contains 20% biodiesel and 80% diesel fuel and 30% biodiesel and 70% diesel fuel respectively. The aim of this study is to compare the performance tests of B-20 and B-30 on a diesel engine. Comparison of their performance comprises engine power, engine torque, specific fuel consumption (SFC) in various loads and emissions. Result shows that the B-20 and B-30 performance is affected by the chemical-physical characteristics of fuel, such as kinematic viscosity, cetane number, density and calorific values. Performance test results show that B-30 has 1.69% lower engine power and 0.62% higher SFC than B-20 at a full load condition. In contrast, B-30 has better emissions than B-20 with a 6.71% decrease in smoke opacity.
FEASIBILITY OF THE UTILIZATION CONDENSATE AS RAW MATERIAL FOR PETROCHEMICAL Holisoh Holisoh
Scientific Contributions Oil and Gas Vol 39 No 3 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.3.102

Abstract

The utilization of condensate is currently not optimal yet, where most of its production are mixed with crude oil which results in significant shrinkage in oil volume. As a hydrocarbon product, condensate can be utilized as a raw material for petrochemical industry, fuel and solvent. Currently raw materials of petrochemical industry in Indonesia are imported from other countries. To optimize the utilization of condensate it is necessary to conduct a characteristic test of several types of condensate and then conducted a utilization analysis based on their number and its nature. Paraffin, Olefin, Naphthenic and Aromatic (PONA) test results showed that the six samples of condensate in the test had a fairly high paraffin content of above 60%. The highest paraffin content was 82.84% for condensate B and the lowest was 61.4% for condensate E. The six condensate samples contain higher paraffin, which are suitable for use as raw material for petrochemical olefin.The results of the economic calculation of the construction unit Olefin Process Center with a capacity of 100,000 BPSD, which is an IRR as 22.8 %, the NPV as of US $ 1,801,491,951.12 , POT for 4.1 years, and PI as 1.87. Developing of Olefin Process Unit Center being constructed in Indonesia is economical worthy.
EFFECT OF OPTIMUM SALINITY
ON MICROEMULSION FORMATION TO ATTAIN ULTRALOW INTERFACIAL TENSION FOR CHEMICAL FLOODING APPLICATION Yani Faozani Alli; Edward ML Tobing
Scientific Contributions Oil and Gas Vol 39 No 2 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.2.103

Abstract

Microemulsion formation in surfactant solution has a major influence on the success of chemical injection techniques, and is one of the enhanced oil recovery methods. Its transparent and translucent homogenous mixtures of oil and water in the presence of surfactant have an ability to displace the remaining oil in the reservoir by reducing interfacial tension between oil and water. In this study, the effect of surfactant solution salinity on the formation of microemulsion and its mechanism to reduce the interfacial tension between water and oil from “X” oil field in Central Sumatera were carried out through compatibility observation, phase behaviour test and interfacial tension measurements in a laboratory. The results showed that microemulsion formation depends on the salinity of aqueous phase associated with different surfactant solubility by altering the polar area of surfactant. The optimum salinity was obtained with the addition of 0.65% Na2CO3 in which microemulsion was formed and the solubilization ratio of oil and water were equally high. At this condition the ultralow interfacial tension was around 10-3 dyne/cm and enabled improved oil recovery in mature oil fields after waterflooding
SHALE AS HYDROCARBON RESERVOIRS Adi Junira; Andy Setyo Wibowo
Scientific Contributions Oil and Gas Vol 39 No 2 (2016)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.39.2.104

Abstract

Nowadays, shale plays a role as hydrocarbon producing rock. Due to its “unusual” properties as a reservoir, shale is classified as an unconventional reservoir. Among these properties are the relatively low permeability (0.1 mD or less) and the relatively low porosity (10% or less). The relatively low permeability had been the main obstacle to extracting the hydrocarbon held by shale in the past. Nevertheless, the technologies of horizontal drilling and hydraulic fracturing have proven to be effective in stimulating a liquid flow in low permeability reservoirs such as a shale layer which has encouraged the hydrocarbon exploration in the oil shale industry. This paper is intended to provide an overview of technologies implemented in the current oil shale reservoir along with their challenges summarized from available sources in a concise manner.

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