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Scientific Contribution Oil and Gas
Published by Kementerian Energi dan Sumber Daya Mineral
ISSN : 20893361     EISSN : 25410520     DOI : https://doi.org/10.29017/SCOG.44.1.492
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Environmental Science
research activities, technology engineering development and laboratory in the oil and gas field including regional geology/basin modeling, petroleum geology, sedimentology, stratigraphy, petroleum geoscience, drilling and completion technology, production engineering, well simulation, formation evaluation, petrophysics, reservoir characterization, oil and gas reserves, reservoir modeling, field development/management, EOR, geomachanics, unconventional hydrocarbon technology, field processing facilities, flow assurance, gas technology/processing/storage, petroleum processing/refining technology, petroleum products, fuel quality/specification/storage, biofuel technology, corrosion/scale problem/water treatment, environment/remediation, CCUS, health and safety/petroleum hazard, emerging technologies
Arjuna Subject : Energi (semua kategori) - Teknologi Bahan Bakar
Articles 275 Documents
 1   2   3   4   5 
TECHNOLOGY DEVELOPMENT ON THE USE OF DIMETHYL ETHER AS FUEL: A REVIEW (REVIEW PERKEMBANGAN TEKNOLOGI PEMANFAATAN DIMETHYL ETHER SEBAGAI BAHAN BAKAR) Anggarani, Riesta; Dhiputra, I Made K; Wibowo, Cahyo S; Rulianto, Dimitri
Scientific Contributions Oil and Gas Vol 40, No 1 (2017)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.51.1.37

Abstract

Researchers have started focusing their research on alternative fuels. During the last two decades, Dimethyl Ether (DME) has emerged as a new potential fuel to substitute for oil and its derivatives. Raw materials for DME from sources such as coal, biomass, natural gas and also crude oil are spread all over the world so the interest is growing for using it as an energy source. While the technology for processing raw materials into DME is well established, the technology for DME applications for a wide range of usages is still being developed. The range of DME usage includes for automotive purposes, in industrial sectors, for household applications, and there is even fundamental research to discover more knowledge about DME safety and another technical considerations. Many research activities are now intensively being conducted in R&D centers and universities. This paper reviews progress in research activities that been used to develop the technology for DME application. Some opportunities for discovering more applications are also discussed in this paper. Penelitian mengenai bahan bakar alternatif menjadi fokus para peneliti di seluruh dunia. Dalam dua dekade ini, Dimethyl Ether (DME) muncul sebagai bahan bakar baru yang potensial untuk menggantikan bahan bakar minyak dan turunannya. Bahan baku DME yang bervariasi dari batubara, biomassa, gas alam dan juga minyak bumi menjadikannya menarik untuk dikembangkan sebagai sumber energi. Teknologi produksi DME dari beberapa bahan baku sudah tersedia secara matang, namun teknologi aplikasi DME untuk berbagai pemanfaatan masih terbatas. Pemanfaatan DME telah dilakukan pada berbagai sektor; otomotif, industri, aplikasi pada rumah tangga, dan bahkan juga penelitian fundamental untuk menggali pengetahuan yang lebih dalam tentang keselamatan penggunaan DME dan pertimbangan teknis lainnya dilakukan secara intensif di universitas serta lembaga –lembaga penelitian. Paper ini meringkas progress kegiatan penelitian yang telah dilakukan untuk mengembangkan teknologi aplikasi DME. Beberapa peluang untuk menemukan aplikasi baru didiskusikan dalam tulisan ini.
THE IMPACTS OF IMPLEMENTING THE CARBON TAX ON FOSSIL FUELS: A HYBRID CGE ANALYSIS FOR INDONESIA Hasudungan, Herbert Wibert Victor
Scientific Contributions Oil and Gas Vol 40, No 2 (2017)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.51.2.44

Abstract

This paper investigates the environmental and economic impacts of introducing the CO2 taxation on carbon-based fuels using a detailed disaggregation of energy-economy-environmental CGE model for Indonesia. The carbon tax has yet to be implemented in Indonesia. However, this instrument has been considered in the Ministry of Finance report as one of the government’s fiscal strategic framework to finance the country’s action plan in commitments to reduce the GHG emissions. Suppose that the government levies the tax of Rp. 100,000/ton CO2e under two possible revenue-recycling scenarios: the carbon tax revenue is recycled through a reduction of labour income tax rate or an increase of government spending on commodities. For comparison purpose, we also implement the non-compensated scenario of which the additional revenue from carbon tax is kept as government savings to run budget surplus. Overall, the results suggested that the carbon tax reduces the national emissions but adding more costs to the economy,resulting a fall in GDP. In terms of income distribution, the carbon tax tends to be progressive in both scenarios of revenue-recycling. However, when there is no compensating mechanism, the carbon tax tends to be regressive - the poorer households carry a higher share of the carbon tax burden.
A LABORATORY STUDY OF CLAY SWELLING PROBLEM IN CO2 EOR BY CARBONIC ACID INJECTION IN CLAY SANDSTONE riyono, sugeng; Wicaksono, Aditya Pramada; Andhika, Lutfi; Fauzi, Iqbal; Aslam, Billal Maydika; Purba, Rafael; Reksi, Handita; Siregar, Hasian P. Septoratno
Scientific Contributions Oil and Gas Vol 40, No 3 (2017)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.51.3.52

Abstract

Signifi cant portion of CO2 is dissolved in reservoir brine during CO2-Enhanced Oil Recovery. Dissolved CO2 forms an acidic environment which could modify rock-fluid interaction. One of the phenomena that could happen due to this interaction is clay swelling which may affect enhanced oil recovery performance. Several experiments were conducted in a number of sandstone core samples, i.e. Imbibition test, Core flood test, Conductivity test, and pH measurement. Imbibition test was conducted to evaluate CO2-saturated brine (approached with carbonic acid) performance toward oil recovery during five days measurement compared with brine imbibition performance. Moreover, core flood experiment was run to determine the effect of dissolved CO2 in brine on injection in sandstone. This is simulated by injecting brine (base case) followed by carbonic acid under 68.3OC. Thus, conductivity and pH of the imbibed fluids (before & after running imbibition test) were measured to justify occurrence of cation exchange. Interpretation of imbibition test indicated that imbibing carbonic acid, at pH value of about four, resulted in loss of oil recovery about 15% compared with brine due to formation damage, caused by clay swelling as sandstone contains clay. The existence of this phenomenon was confirmed by flow resistance at low pH in core sample which was higher than that in brine. This apparent plugging was expected due to severe clay swelling. Meanwhile, the existence of such phenomenon was also clarified with conductivity and pH measurement as there was a great amount of cation exchange. It can be inferred from this study that the rock-fluid interaction from CO2-saturated brine can result in adverse effect, such as injectivity problem and loss of recovery. This finding must be considered in planning CO2 EOR operations, especially when facing condition of watered out oil zone.
SIMULTANEOUS MEASUREMENT OF SYN-GAS COMPONENT (H2, CO2, CH4, AND CO) AS PRODUCT OF BIOMASS GASIFICATION BY USING VALIDATED GC-TCD METHOD Mulyana, Muhammad Rizky; Zuas, Oman; Budiman, Harry; Simanungkalit, Sabar; Rinaldi, Nino
Scientific Contributions Oil and Gas Vol 41, No 1 (2018)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.41.1.73

Abstract

Biomass gasification has been widely known method to produce syn-gases, which can be considered as great alternative substitution for fossil fuels. However, accurate verification of the syn-gas composition requires a reliable and validated method for simultaneous measurement of H2, CO2, CH4, and CO. In order to fulfill the aforementioned requirements, which is the objective of this study; a GC-TCD method for simultaneous measurement of H2, CO2, CH4, and CO component in syn-gas has been validated in accordance to ISO/IEC 17025 and its application for real samples. For the method validation purpose, all of the performance parameters were evaluated and discussed in detail in this study. Intraday precision and interday precision were found to be acceptable having the %RSD below 0.67xCV Horwitz and below 1.0xCV Horwitz, respectively. The bias value falls within +2σ for entire components, indicating that the method accuracy can be accepted. Coefficient correlation for all components was higher than 0.99, which means that the method has suffi cient linearity. LoD and LoQ for each component were found to be lower than typical syn-gas concentration range. The method roughness was also found in an acceptable level (the p-values was higher than 0.05 for allctarget components. Application of the validated method for the measurement of a real syn-gas samples indicated that the method is quite reliable to produce an accurate data and the validated methid can be used in a routine analysis. The innovation of this study, as shown by experiment results, is to evaluate the validated method’s performance for simultaneous determination of syn-gas components’ concentration in one channel, compared to common method in which the syn-gas components were measured separatedly in a different channel.Biomass gasifi cation has been widely known method to produce syn-gases, which can be consideredas great alternative substitution for fossil fuels. However, accurate verifi cation of the syn-gas compositionrequires a reliable and validated method for simultaneous measurement of H2, CO2, CH4, and CO. Inorder to fulfi ll the aforementioned requirements, which is the objective of this study; a GC-TCD methodfor simultaneous measurement of H2, CO2, CH4, and CO component in syn-gas has been validated inaccordance to ISO/IEC 17025 and its application for real samples. For the method validation purpose,all of the performance parameters were evaluated and discussed in detail in this study. Intraday precisionand interday precision were found to be acceptable having the %RSD below 0.67xCV Horwitz and below1.0xCV Horwitz, respectively. The bias value falls within +2σ for entire components, indicating that themethod accuracy can be accepted. Coeffi cient correlation for all components was higher than 0.99, whichmeans that the method has suffi cient linearity. LoD and LoQ for each component were found to be lowerthan typical syn-gas concentration range. The method roughness was also found in an acceptable level(the p-values was higher than 0.05 for allctarget components. Application of the validated method for themeasurement of a real syn-gas samples indicated that the method is quite reliable to produce an accuratedata and the validated methid can be used in a routine analysis. The innovation of this study, as shown byexperiment results, is to evaluate the validated method’s performance for simultaneous determination ofsyn-gas components’ concentration in one channel, compared to common method in which the syn-gascomponents were measured separatedly in a different channel.Keywords: syn-gas, GC-TCD, method validation.
CONSTRUCTION AND EXPRESSION
OF QUARTET RECOMBINANT PEPTIDE SURFACTANT FOR EOR APPLICATION Sari, Cut Nanda; Usman, Usman; Lestary, Refiana; Khairunnisa W.R., Riesa; Herlina, Leni; Syafrizal, Syafrizal; Kristianti, Tati; Suhandono, Sony
Scientific Contributions Oil and Gas Vol 39, No 3 (2016)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.50.3.98

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.
EFFECT OF OPTIMUM SALINITY
ON MICROEMULSION FORMATION TO ATTAIN ULTRALOW INTERFACIAL TENSION FOR CHEMICAL FLOODING APPLICATION Alli, Yani Faozani; Tobing, Edward ML
Scientific Contributions Oil and Gas Vol 39, No 2 (2016)
Publisher : Scientific Contributions Oil and Gas

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
CO-SURFACTANT POLYETHYLENE GLYCOL MONO-OLEATE IN THE ORMULATION OF NATURAL BASED-SURFACTANT FOR CHEMICAL EOR (SURFAKTAN PENDAMPING POLIETILEN GLIKOL MONO-OLEAT PADA FORMULASI SURFAKTAN BERBASIS NABATI UNTUK INJEKSI KIMIA EOR) Alli, Yani Faozani; Brioletty, Letty; Eni, Hestuti; Irawan, Yan
Scientific Contributions Oil and Gas Vol 40, No 1 (2017)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.51.1.33

Abstract

Natural-based surfactant such as methyl esther sulfonate, which is derived from palm oil, has increasingly become the focus of study for the last decade to improve oil recovery due to the abundant raw materials availability and the need for oil as a source of energy. Surfactant MES development with the targeted fluid reservoir characteristic has been conducted in the laboratory scale as well as in the field scale. In this study, the addition of polyethylene glycol mono-oleate as co-surfactant to enhanced oil recovery in the “L” oil field in Central Java was investigated in the laboratory scale through compatibility observation, IFT measurement, thermal stability and core flooding tests. The results showed that the presence of PMO improved the solubility of surfactant mixture in the water which formed one phase milky solution. Decreasing IFT as the crucial factor for surfactant flooding was also achieved until 10-3 dyne/cm and thermally stable for two months. Furthermore, core flooding experiments to study the performance of surfactant to recover oil production showed that the mixture of MES and PMO are able to enhance oil recovery until 55.35% Sor and have potential to be used as chemicals for chemical flooding in the targeted oil field. Surfaktan berbasis nabati seperti surfaktan metil ester sulfonat (MES) dari bahan minyak kelapa sawit telah menjadi fokus penelitian selama satu dekade terakhir untuk meningkatkan perolehan minyak, mengingat ketersediaan bahan baku kelapa sawit yang melimpah di Indonesia serta kebutuhan akan minyak sebagai sumber energi yang terus meningkat. Pengembangan surfaktan MES agar sesuai dengan karakteristik fluida reservoar lapangan target juga telah berhasil dilakukan dalam skala laboratorium dan skala lapangan. Pada penelitian ini, pengaruh penambahan surfaktan pendamping polietilen glikol mono-oleat (PMO) untuk meningkatkan kemampuan surfaktan dalam meningkatkan produksi minyak pada lapangan “L” di Jawa Tengah dalam skala laboratorium dilakukan melalui uji kompatibilitas, ujitegangan antarmuka (IFT), uji kestabilan termal dan uji core flooding. Hasil penelitian menunjukkan bahwa penambahan PMO sebagai surfaktan pendamping MES dapat meningkatkan kelarutan surfaktan di dalam air formasi terkait dengan keberadaan gugus etoksi yang mempunyai sifat antarmuka di dalam struktur molekul PMO. Penurunan IFT sebagai faktor penentu dalam injeksi surfaktan juga dapat dicapai hingga 10-3 dyne/cm, dan dapat bertahan hingga dua bulan pada suhu reservoar. Adapun pengujian kemampuan surfaktan dalam meningkatkan perolehan minyak melalui uji core flooding menunjukkan bahwa campuran surfaktan MES dan PMO dapat meningkatkan produksi minyak hingga 55.35% Sor dan berpotensi untuk dijadikan bahan injeksi kimia di lapangan target.
THE IMPORTANCE OF GEOLOGICAL AND HYDROGEOLOGICAL KNOWLEDGE IN JUSTIFYING PORE PRESSURE PREDICTION: THE CASE STUDY OF THE PECIKO FIELD, LOWER KUTAI BASIN Ramdhan, Agus M
Scientific Contributions Oil and Gas Vol 40, No 2 (2017)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.51.2.40

Abstract

One significant factor affecting pore pressure prediction is choosing a method of calculation. If we choose the inappropriate method, the result may not refl ect not only pore pressure condition in an area, but also geological processes operating in the whole basin. In this research, two methods are applied to wireline-based pore pressure calculation in the Peciko Field: the Eaton Method and the Soil Mechanics Method. The results of the calculation show a signifi cant difference between these methods. The Eaton Method resulted in reservoir-shale pressure discrepancy (by over-predicting the reservoir pressure) at shallower depth, and reservoir-shale pressure equilibrium at depth. On the contrary, the Soil Mechanics Method resulted in reservoir-shale pressure equilibrium at shallower depth and an under-predicting at depth. It seems that, in terms of processes operating in this fi eld which affect pore pressure regimes, i.e. lateral reservoir drainage and rapid mud-dominated deltaic sedimentation, the result of the Eaton Method is more plausible than that of the Soil Mechanics Method. This research also reveals an important inference: if there is a pressure discrepancy, then it is likely that a hydrodynamic condition is present.
POLLEN RECORDS FROM THE OLIGOCENE OF WESTERN INDONESIA AS THE EVIDENCES OF CLIMATE CHANGES Lelono, Eko Budi
Scientific Contributions Oil and Gas Vol 40, No 3 (2017)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.51.3.46

Abstract

In Southeast Asia, Oligocene climate is well known to be represented by dry/ seasonal climate. However, it was reported possible appearance of wet climate period during the expantion of dry condition. This work is aimed to confi rm the Oligocene climate which occurred in western Indonesia. Climate change is useful to understand the Oligocene stratigraphy of Western Indonesia. This study uses cutting samples from off shore exploration wells situated in West and East Java and West Natuna as well as on-shore Central Sumatera and West Java. Samples are processed using standard preparation methods to produce suitable pollen assemblage for quantitative analysis.This study proves that the Oligocene sediments yield rich pollen assemblages including those of environment and climate indicators. Abundant fresh water algae of Pediastrum and Bosedinia in Early Oligocene indicates the appearance of lacustrine sediments. This sediment was formed under dry/ seasonal climate as marked by rich grass pollen Monoporites annulatus in the absence or rare occurance of rain forest elements. Mean while, Late Oligocene is characterised by common brackish elements to indicate shifting paleoenvironment into transition to shallow marine. The climate was changing into wetter condition as evidenced by high appearance of Dacrydium and Casuarina as well as other rain forest palynomorphs. The wettest climate probably occured in Java region which refl ected a wet climate fringe to the eastern margin of Sundaland prior to the collision of the Australian and Asian Plates at the Oligo-Miocene boundary. However, in general, dry/ seasonal climate is the rule for most of the Oligocene in Western Indonesia.
BIOCIDE SCREENING TEST TO PRODUCE WATER REINJECTION IN THE “X OIL FIELD” Zulkifliani, Zulkifliani
Scientific Contributions Oil and Gas Vol 40, No 3 (2017)
Publisher : Scientific Contributions Oil and Gas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.51.3.54

Abstract

Oil field produced water with a high fl ow rate usually contains suspended solid, such as corrosion, scale, bacteria, clay, wax, and oil residue. Biocide is used to reduce viability of bacteria cell in produced water reused for produced water reinjection into oil reservoir. The objectives of this study is to examine anti bacteria activity of fi ve active compound biocides i.e. Glutaraldehide (Biocide-1), Aldehyde-Based and Surfactants (Biocide-2), Glutaraldehyde, Quartenary Ammonium Compounds (Biocide-3), Tetrakis Phosphonium Hydroxymethyl Sulfate (Biocide-4), and Amine Aldehide (Biocide-5) for reduced bacteria cell in produced water in this fi eld. Resulted in this study is general aerobic bacteria group is high contamination at the produced water reinjection. Bacteria isolates identifi ed is Bacillus sp (2 types of isolates) and Pseudomonas alcaligenes. The type of Biocides-2 and Biocide-3 reduced the number of bacteria cells maximal at a concentration of 200 ppm.Oil field produced water with a high fl ow rate usually contains suspended solid, such as corrosion,scale, bacteria, clay, wax, and oil residue. Biocide is used to reduce viability of bacteria cell in producedwater reused for produced water reinjection into oil reservoir. The objectives of this study is to examineanti bacteria activity of fi ve active compound biocides i.e. Glutaraldehide (Biocide-1), Aldehyde-Basedand Surfactants (Biocide-2), Glutaraldehyde, Quartenary Ammonium Compounds (Biocide-3), TetrakisPhosphonium Hydroxymethyl Sulfate (Biocide-4), and Amine Aldehide (Biocide-5) for reduced bacteriacell in produced water in this fi eld. Resulted in this study is general aerobic bacteria group is highcontamination at the produced water reinjection. Bacteria isolates identifi ed is Bacillus sp (2 types ofisolates) and Pseudomonas alcaligenes. The type of Biocides-2 and Biocide-3 reduced the number ofbacteria cells maximal at a concentration of 200 ppm.

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