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All Journal Eksergi: Chemical Engineering Journal Seminar Nasional Teknik Kimia Kejuangan LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI Scientific Contributions Oil and Gas
Dedy Kristanto
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Identifikasi Keberadaan Air pada Proses Penyaluran Fluida Produksi di Lapangan Minyak Lepas Pantai Hariyadi Hariyadi; Dedy Kristanto; Yulius Deddy Hermawan
Eksergi Vol 17, No 2 (2020)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v17i2.3718

Abstract

Oil production that flows from the Platform to the FSO (Floating Storage and Offloading) "A" is derived from PT. "B" and the "C" Oil Company in the Madura Strait. The total oil production flowing from the Platform to the "A" FSO is currently around 6000 BOPD. As a result of the delivery system using the same channel, a problem arises, namely oil losses between the Platform as a delivery point and FSO "A" as a receiving point. Besides that, the water that is involved in the oil distribution process will be a deduction factor that will be used as a correction for oil shipments, the more water the less amount of oil will be received at FSO "A". The oil samples that have been taken are then observed for their characteristics, namely density, composition (%-mole), BS&W, emulsion, flash, shrinkage at PPPTMGB "Lemigas" Laboratory Jakarta. The specific gravity of samples is around 1,018. While the characteristics of the two are different from the characteristics of sea water; this difference is shown by the results of SG (1,018 vs 1,025) and the salt content of sea water is much higher than the water formation of PT "B" and PT "C". The oil samples of PT "B" and PT "C" have almost the same SG, which is 0.79. BS&W oil in both ships is quite low; this shows that the separation of oil and water on the Platform went quite well. However, BS&W samples in incoming FSO "A" are very high, at 5%; this indicates an off-set at the water-oil interface level settling time on the Platform separator so that water can be joined with the oil flow from the Platform to the FSO "A"
PENGARUH DENSITAS MINYAK BUMI TERHADAP OIL LOSSES PADA PENCAMPURAN MINYAK BUMI DI LAPANGAN ‘X’ SUMATRA SELATAN Hariyadi Hariyadi; Dedy Kristanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Field experience shows that, when two or more oils have different densities mixtures and transported throughthe pipeline at the same time, the mixtures will form a new characteristics of oils that different than oilsinitially, then the volume of the oil mixture is delivered from the SP ( Gathering Station), as the transferpoint, the volume will be different on the tank received. Differences between the sending and receiving ofthese so-called oil losses. One factor is the shrinkage volume of oil that caused the process of mixing two ormore of oils which have different characteristics in the pipeline or tank .Laboratory testing use to calculateshrinkage of oil, but the other use the American Petroleum Institute method.In a case study conducted in theoil field 'X' in South Sumatra there are some groups that have different characteristics of petroleum, andfrom laboratory experiments and mathematical calculations showed that the shrinkage in the Group 1 isequal to 0.115% or 2.386 BOPD, shrinkage in the Group 2 is equal to 0131% or 3.931 BOPD. The amountof shrinkage in Group 3 of 0.476% which is equivalent to 6.748 BOPD and for Group 4 seen that shrinkageof this group amounted to 0.189% or 2.082 BOPD and shrinkage for Group 5 amounted to 5% or 38.507BOPD. While the total shrinkage in the network system from upstream to downstream (group 1- 5) isapproximately 0.257%, or approximately 54.37 BPOD
Penentuan Swelling Factor dan Tekanan Tercampur Minimum untuk Penerapan Injeksi Gas Karbondioksida di Lapangan Minyak Dedy Kristanto; Hariyadi Hariyadi; Wibowo Wibowo; Windyanesha Paradhita
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2020: PROSIDING SNTKK 2020
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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Abstract

Studi Terintegrasi Kelayakan Proses Injeksi Gas CO2 untuk Enhanced Oil Recovery (EOR) di Lapangan Minyak Dedy Kristanto; Harriyadi Harriyadi; Yulius Deddy Hermawan; Yusmardhany Yusuf
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

PENENTUAN SWELLING FACTOR DAN TEKANAN TERCAMPUR MINIMUM UNTUK PENERAPAN INJEKSI GAS KARBONDIOKSIDA DI LAPANGAN MINYAK Dedy Kristanto; Hariyadi; Wibowo; Windyanesha Paradhita
Lembaran Publikasi Minyak dan Gas Bumi Vol. 53 No. 3 (2019): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Pengembangan (swelling) minyak dan tekanan tercampur minimum (TTM) merupakan dua faktor yang penting dari mekanisme pendesakan gas karbondioksida (CO2 ) yang terjadi di reservoir untuk penerapan injeksi CO2 di lapangan dalam upaya meningkatkan perolehan minyak tahap lanjut. Dalam paper ini penentuan swelling factor dilakukan menggunakan PVT cell, dimana fluida rekombinasi diinjeksikan dan dikondisikan pada temperatur reservoir. Sedangkan penentuan TTM antara sampel minyak dengan gas CO2 dilakukan menggunakan tiga cara, yaitu persamaan empiris, secara korelasi dan percobaan laboratorium menggunakan Slimtube. Berdasarkan hasil analisa swelling test selama proses injeksi gas CO2 sampai 46,82% mol, tekanan gelembung meningkat secara bertahap dari 410 psig sampai 2200 psig dan faktor swelling meningkat dari 1.0 sampai 1.442. Penentuan TTM menggunakan persamaan empiris (2807 Psig) dan korelasi Holm & Yosendal (2750 Psig) adalah yang paling mendekati dengan hasil penentuan dari analisa laboratorium (2800 Psig). Didasarkan pada besarnya tekanan rekah formasi di Lapisan F sebesar 2200 Psig dan TTM sebesar 2800 Psig, maka dalam penerapannya di lapangan injeksi gas CO2 hanya dapat dilakukan secara pendesakan tak tercampur.
Prediction Of Two-Phase Relative Permeability In Porqus Media Based On Network Modeling Of Lattice Gas Automata Dedy Kristanto; Mariyamni Awang
Scientific Contributions Oil and Gas Vol 27 No 1 (2004)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.27.1.874

Abstract

The displacement of one fluid by another is controlled by the geometry of the pore space. The relative hydrodynamic conductance of each fluid at a given saturation is the relative permeability, while the pressure difference between the phases is the capillary pressure. These two functions determine the macroscopic fluid flow behavior in hydrocarbon reservoir over the scale of centimeters to kilometers.At the pore seale fluids reside in intergranular space of typical sedimentary rocks. The rock type and fluid properties are likely to change drastically through the reservoir, the only sample of rock come from drilling wells, which represents a tiny fraction of the total volume in a reservoir. Furthermore, relative permeability measurements on these samples are difficult and time consuming. To quantify and control uncertainty in recovery estimations, it is necessary to have some theoretical understanding of transport properties. Such understanding would enable us to predict the sensitivity of relative permeability to geological factors such rosity, and the nature of the fluids. This work is a pre- liminary step in this direction. A more important result from this work is that we are now able to quantify the change in the relative permeability to those geological factors.In this paper a pore structure and displacements mechanisms to model two-phase flow in porous media were constructed using lattice gas automata. The void space of the media is represented as a network of large spaces (pores) connected by narrower throats. The aggregation of cell pore volumes is used to calculate the porosity of the network and the fluid saturation when different cells are occupied by different fluids. By judicious choices for the distribution of pore and throat sizes of the network it is possible to predict relative permeability. For predicting the absolute and relative permeability, it is assumed that the viscous pressure drops occur across the throats.
Co-Authors Hariyadi Hariyadi Hariyadi Hariyadi Hariyadi Hariyadi Hariyadi Harriyadi Harriyadi Mariyamni Awang Wibowo Wibowo Wibowo Windyanesha Paradhita Windyanesha Paradhita Yulius Deddy Hermawan Yusmardhany Yusuf