Abdul Haris
Departemen Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam (FMIPA) Universitas Indonesia, Depok, Indonesia

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Statistical Tuning Chart for Mapping Porosity Thickness: a Case Study of Channel Sand Bodies in the Kutei Basin Reservoir Abdul Haris; Agus Riyanto; Sri Mardiyati
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 6: December 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i6.9660

Abstract

Reservoir assessment is not only controlled by the structural framework but also stratigraphical features. Stratigraphical interpretation, which is related to seismic amplitude interpretation, is used to describe petrophysical aspects of channel sand reservoirs such as net porosity and thickness. This paper aims to map the porosity thickness for a case study of channel sand bodies reservoir in the Kutei basin. The study area is complex channel reservoir system that appears to occupy specific area within the depositional system. The geometry of the sediment channel, which thins toward the channel margins, makes this feature similar to be wedge model that could possibly be influenced by tuning effects. The tuning effects introduce pitfall in interpreting high-quality reservoir that is affected by contrasts in acoustic impedance. In order to distinguish high amplitude responses caused by tuning effects and acoustic properties, the analysis of amplitude responses needs to be correlated to the reservoir thickness. The statistical tuning chart is one of the techniques used to correlate amplitude responses and the reservoir thickness. The application of this technique to real data sets shows net porosity thickness map over the targeted reservoir. Thus, high-quality reservoir characterization can be performed to delineate geometric framework of the reservoir.
KARAKTERISASI BATUAN SERPIH PADA LAPANGAN “RK” FORMASI TANJUNG, CEKUNGAN BARITO, KALIMANTAN SELATAN SEBAGAI POTENSI SHALE HYDROCARBON Taufan Amersia Sumotarto; Abdul Haris; Andang Bachtiar; Alfian Usman
Spektra: Jurnal Fisika dan Aplikasinya Vol 2 No 1 (2017): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 2 Nomor 1, April 2017
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (644.625 KB) | DOI: 10.21009/SPEKTRA.021.06

Abstract

Abstrak Eksplorasi dan eksploitasi di Indonesia saat ini masih terfokus pada energi konvensional hidrokarbon dibandingkan energi nonkonvensional hidrokarbon seperti gas serpih. Gas serpih adalah salah satu energi nonkonvensional yang kaya material organic dan mencapai kematangan, pada kondisi dan tipe tertentu mampu berfungsi sebagai reservoir minyak dan gas. Formasi Tanjung adalah batuan induk dari Cekungan Barito, terletak diKalimantan Selatan, berpotensi sebagai Shale Hydrocarbon. Pada penelitian ini dilakukan integrasi dari tiga metode diantaranya menggunakan analisis geokimia organik, petrofisika dan interpretasi seismik yang menjadi dasar untuk melihat hubungan kekayaan material organik dan kematangan material organik pada potensi gas serpih di wilayah tersebut. Tahap pertama adalah analisis geokimia organik pada Formasi Tanjung didapat tingkat kekayaan materi organik berkisar 1.26 – 5.98 wt% (Baik - sangat baik), jendela awal kematangan pada kedalaman 2170 m dan kategori tipe kerogen II/III menghasilkan minyak dan gas. Tahap kedua adalah analisis petrofisika yang meliputi perhitungan TOC secara kontinyu, hasil dari analisis petrofisika ini divalidasi dengan nilai analisis laboratorium, didapat nilai regresi 0.923. Tahap selanjutnya adalah melakukan interpretasi seismik dengan metode inversi impedansi akustik untuk melihat persebaran batuan serpih dengan nilai 17718 – 28222 ft/s*g/cc, arah penyebaran batuan serpih sebagai potensi shale hydrocarbon berada di timur dan tenggara daerah penelitian. Kata-kata kunci: Shale Hydrocarbon, Formasi Tanjung, Material Organik, Petrofisika dan Inversi Impedansi Akustik Abstract Exploration and exploitation in Indonesia currently still focused on conventional hydrocarbon energy than the energy of the nonkonvensional hydrocarbons such as shale gas. Shale gas is one of the energyrich organic material nonkonvensional and reach maturity, on the conditions and certain types are capable of functioning as a reservoir of oil and gas. The formation of the Cape is the parent rock of the Barito Basin, located diKalimantan South, potentially as Shale Hydrocarbon. This research was conducted on the integration of the three methods include using organic geochemical analysis, seismic interpretation and petrofisika which became the basis for the wealth of organic material see the relationship and maturity of organic material on the potential of shale gas in the region. The first phase is the analysis of Organic Geochemistry in Formation of Cape obtained the level of wealth of organic matter ranged from 1.26 – 5.98 wt% (Good-excellent), the initial maturity of the window at a depth of 2170 m and category II/III kerogen type produces oil and gas. The second phase is the analysis of petrofisika which include calculation of TOC continuously, the results of the analysis of this petrofisika validated with the value of the laboratory analysis, the regression value obtainable 0923. The next step is doing seismic interpretation with acoustic impedance inversion method to see the spread of the shale rocks with a value of 17718 – 28222 ft/s * g/cc, the direction of spread of shale rocks as shale hydrocarbon potential in the East and Southeast areas of research. Keywords: Shale Hydrocarbon Formation, Cape, organic Material, Petrofisika and Acoustic Impedance Inversion
INTEGRATED AVO, ELASTIC SEISMIC INVERSION AND PETROPHYSICAL ANALYSIS FOR RESERVOIR CHARACTERIZATION: A CASE STUDY OF GAS FIELD, SOUTH SUMATERA BASIN Abdul Haris; Ressy Sandrina; Agus Riyanto
Spektra: Jurnal Fisika dan Aplikasinya Vol 3 No 1 (2018): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 3 Issue 1, April 2018
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (794.712 KB) | DOI: 10.21009/SPEKTRA.031.02

Abstract

Integrated Amplitude Versus Offset ( AVO), elastic seismic inversion and petrophysical analysis have been successfully applied to estimate the elastic parameters of the reservoir for a case study of the gas field in south Sumatera basin. This paper aims to have better understanding the petrophysical properties of the reservoir. The petrophysical analysis was carried out by performing routine formation evaluation that includes calculation of shale volume, porosity, and water saturation of basic well log data. Sensitivity analysis was conducted to evaluate the sensitivity parameters of the log for changing in lithology, porosity, and fluid content in the reservoir. For completing the availability of elastic parameter from well log data, shear wave logs were derived from Castagna’s mudrock line relationship. Further, P-impedance, S-impedance, VpVs ratio, LambdaRho (λρ), MuRho (μρ) and density(ρ) were then calculated through a Lambda-Mu-Rho (LMR) transformation. Prior to performing AVO analysis and elastic seismic inversion, super gather technique was applied to improve the reliability of pre-stack seismic data. Elastic seismic inversion was carried out to extract the lateral elastic properties to capture lithology and fluid changes in the reservoir. In addition, AVO analysis of pre-stacked data was applied to identify hydrocarbon-bearing sandstone at target zone. The petrophysical analysis shows that porosity versus density crossplot is able to distinguish sand-shale based on 34% shale volume cutoff, while LMR crossplot is able to delineate hydrocarbon zone at water saturation value under 65%. The predicted lateral elastic parameter shows slightly higher value compare to overlying layer.
FLOW UNITS DETERMINATION USING FLOW ZONE INDICATOR FOR CARBONATE RESERVOIR Abdul Haris; Agus Riyanto; Tri Aji Adi Harsanto; Ambar Rachmanto; Adang Sukmatiawa
Spektra: Jurnal Fisika dan Aplikasinya Vol 3 No 2 (2018): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 3 Issue 2, August 2018
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (675.582 KB) | DOI: 10.21009/SPEKTRA.032.03

Abstract

In the last few years, the use of flow unit technique in the oil and gas industry has shown a great deal of success. Porosity and permeability from wire-line log and special core data analysis (SCAL) along with its cementation exponent value were integrated to characterize the reservoir in terms of pore volume caused by facies changing. In this work, we determine flow unit of the carbonate reservoir, which is applied to the Northwest Java Basin Field, Indonesia by performing the flow unit analysis, which allows approximating absolute permeability. Furthermore, the quantity and the flow unit of the reservoir rock is also determined to identify the secondary porosity. To reduce the level of uncertainty, wire-line logs data were validated with core data before it is used to interpret the reservoir. Subsequently, the result can be extrapolated to un-cored wells. Our experiment shows that flow units can be determined reliably from the integration between porosity and permeability, which have defined two different rock types in term of flow unit zone. The correlation of the flow units between wells leads to the definition of reservoir quality.
DEKOMPOSISI SPEKTRAL BERDASARKAN TRANSFORMASI WAVELET KONTINYU UNTUK PEMETAAN BATUPASIR GAS DI FORMASI TARAKAN, STUDI KASUS CEKUNGAN TARAKAN – KALIMANTAN UTARA Ika S. Oktavianti; Abdul Haris; Agus Riyanto; Rano Rano; Rio I. Sebayang
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 9 (2020): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2020
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.72 KB) | DOI: 10.21009/03.SNF2020.01.FA.01

Abstract

AbstrakReservoir Intra Tarakan Reservoir adalah bagian dari Formasi Tarakan yang diendapkan pada umur Pliosen Awal. Berdasarkan data pemboran, lapisan Intra Tarakan adalah reservoir batupasir gas dengan lingkungan pengendapan delta. Tujuan penelitian ini adalah untuk memetakan lapisan reservoir gas Intra Tarakan pada lokasi studi menggunakan data 3D seismik dan dua data sumur. Proses untuk memisahkan komponen frekuensi spektrum pada data seismik berdasarkan metode transformasi wavelet kontinyu digunakan untuk mengidentifikasi reservoir gas yang berasosiasi dengan zona frekuensi rendah. Hasil dari dekomosisi spektral diharapkan dapat memiliki konsistensi dengan data pemboran sumur. AbstractIntra Tarakan Reservoir is a part of Tarakan Formation that deposited in early Pliocene. Based on drilling data, Intra Tarakan layer is a gas sands reservoir with deltaic deposition environment. This research goal is to map the Intra Tarakan gas reservoir in the study area using 3D seismic data and two wells data. The process of separating the frequency spectrum components in seismic data based on continuous wavelet transform method is used to identify the gas reservoir that associated with the low frequency zone. The results of spectral decomposition are expected to have consistency with the drilling result.