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All Journal JITPI : Jurnal Ilmu Dan Teknologi Peternakan Indonesia (Indonesian Journal of Animal Science and Technology) Jurnal Triton Jurnal Pengabdian dan Pemberdayaan Nusantara (JPPNu) Social Pedagogy: Journal of Social Science Education Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Sugihardjo Sugihardjo
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Veterinary

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Journal : Scientific Contribution Oil and Gas

 1 
A Study of Spontaneous Imbibition Recovery Mechanism of Surfactant Formulated from Methyl Ester Sulfonates Sugihardjo Sugihardjo
Scientific Contributions Oil and Gas Vol. 36 No. 2 (2013): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.36.2.10

Abstract

MES (Methyl Ester Suffocates) can be formulated to become surfactant-MES that has surfactant potential properties for EOR (enhanced oil recovery). A such formulated surfactant MES by adding some solvents and chemicals to adjust its properties in order to generate a compatibity with reservoir fluid and rock has been developed. This formulated surfactant MES, therefore, has been tested its properties for enhanced oil recovery in a selected oil field. The oil field produces an oil withc39.45oAPI, and brine content of about 18,900 mg/L equivalent NaCl concentration. While reservoir rock is not available and substituted by Bentheimer standard core. Basically the production enhancements of surfactant solution for EOR processes are wettability alteration and interfacial tension reduction. In these experiments, some evaluations have been done to observe the capability the formulated surfactant MES for oil production enhancements includingwettability alteration and imbibition capability. Formulated low interfacial tension surfactant-MES that will be evaluated for spontaneous imbibition ability have been diluted in the brine of 0.5 and 1.0% concentrations. Tests on wettability alteration indicated that the surfactant solutions could not change the wettability of the rocks. The initial wettability is mixed wet and still mixed wet after ageing in the surfactant solution. On other hand the spontaneous imbibition tests resulted in significant oil production coming out from the cores, i.e. 67.07% oil recovery with 0.5% surfactant and 92.25% for 1.0% surfactant solutions. But optimum oil recovery factor by brine imbibition is only 41.69%
INCREASING OIL RECOVERY THROUGH LOW-TENSION POLYMER FLOODING Sugihardjo Sugihardjo
Scientific Contributions Oil and Gas Vol. 22 No. 2 (1999): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.22.2.118

Abstract

After completing a waterflood activity, the need of enhancing oil recovery (EOR) is essential. The selection of appropriate EOR methods that will be applied to particular field, as an effort to increase oil recovery, mainly depens on the reservoir characteristics and fluid behaviors.
EVALUATION OF CHEMICAL FOR SAND CONSOLIDATION IN LABORATORY SCALE Sugihardjo Sugihardjo
Scientific Contributions Oil and Gas Vol. 43 No. 1 (2020): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

These paper contains a highlight of laboratory experiment to evaluate the work of chemical for sand consolidation to strengthen the bonding between grains of rock while do not cause permeability reduction significantly. This experiment used reservoir rock and fluids to understand the interaction between the chemical solution and the reservoir rock and fluid. Firstly, the reservoir rock and fluid were analyzed their properties. The rock has been analyzed using CT Scan to drill the best representative core plug for the experiments, using SEM to identify the pore throat and pore geometry of the rock, using XRD to determine the minerals composition which mostly quartz. While the fluids have been analyzed for the anions and cations content, viscosity and other important properties. The brine particle content and also particle size distribution of the rock have been also over lied in the graph in order to know the possibility of bridging particle in the pore throat, but the graph looks good that no problem may arise from the bridging particle. Chemical for Sand Consolidation has been used in this experiment. Sand consolidation chemical normally contain plastic resin that has a property of bonding between solid materials. It sticks on the surface of solid materials and bonding together. The core flooding experiments have been run for 4 times, 2 times using synthetic cores and the other two using native cores. The experiments used synthetic cores reduce the permeability significantly. However, after cutting both ends of the core the permeability has indicated improvement. The other 2 experiments using native cores have reduced the permeability approximately 4 times down. The last two experiments have no cutting the ends of core for further experiments, so they cannot be compared to the first two experiment. So, the experiment procedures must be improved for the next evaluation, such as during curing time the rate of injected oil may be increased to reduce the adsorption of chemical to the surface area of the pore and also to hinder the flocculation of chemical in the pore space.
INVESTIGATIONS ON THE STORAGE EFFICIENCY OF CO2 IN CARBONATE AQUIFERS Sugihardjo Sugihardjo
Scientific Contributions Oil and Gas Vol. 27 No. 2 (2004): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

The production of associated and nonassociated gasincreases due to additional new oil and gas fields. Con-sequently, there will be an increase of CO2 released fromassociated gas, and especially, from nonassociated gas.
Surfactant Properti Es Evaluation For Chemical Flooding Sugihardjo Sugihardjo
Scientific Contributions Oil and Gas Vol. 31 No. 3 (2008): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

The need of EOR techniques in the late field production period is essential to get thethird wind of incremental oil. Chemical injections are proven technologies not only at thelaboratory scale but also at the field scale which have been implemented in many parts ofthe world. Surfactant is an important Chemical in this technology, which mostly has beenused to rednce the capillary trap of the oil in the reservoirs. The selection of surfactant type which is suitable for a specific oil field to increase theoil production should fulfill the selection criteria. Laboratory works firstly should be doneto evaluate the important properties based on the industrial Standard procedures. Theselaboratory tesis include compatibility test, aqueous stability test, phase behavior study,micro-emulsion viscosity interfacial tension determination, thermal stability test. and fil-tration test
DEVELOPMENT OF WATERFLOOD PROFILE MODIFICATION USING BRIGHTWATER TECHNOLOGY Sugihardjo Sugihardjo
Scientific Contributions Oil and Gas Vol. 28 No. 3 (2005): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

Water flooding, in rnany mature fields is facing acommon problem of low sweep efficiency in the lateproduction period.
Co-Authors Agung Wibowo Joko Winarno Kamalia Ulfa Moerindra Sekar Arum Pratiwi Nuraini Nuraini Sapja Anantanyu Sri Astusi Rahayu Sri Kadarwati Suminah Suminah Tjuwati Makmur Tony Rudi Astono Via Ainun Sholiha Afif