Articles
<![CDATA[Statistical Tuning Chart for Mapping Porosity Thickness: a Case Study of Channel Sand Bodies in the Kutei Basin Reservoir ]]>
<![CDATA[Abdul Haris]]>;
<![CDATA[Agus Riyanto]]>;
<![CDATA[Sri Mardiyati]]>
<![CDATA[ TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 6: December 2018 ]]>
Publisher : <![CDATA[Universitas Ahmad Dahlan ]]>
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DOI: 10.12928/telkomnika.v16i6.9660
<![CDATA[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.]]>
<![CDATA[INTEGRATED AVO, ELASTIC SEISMIC INVERSION AND PETROPHYSICAL ANALYSIS FOR RESERVOIR CHARACTERIZATION: A CASE STUDY OF GAS FIELD, SOUTH SUMATERA BASIN ]]>
<![CDATA[Abdul Haris]]>;
<![CDATA[Ressy Sandrina]]>;
<![CDATA[Agus Riyanto]]>
<![CDATA[ Spektra: Jurnal Fisika dan Aplikasinya Vol 3 No 1 (2018): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 3 Issue 1, April 2018 ]]>
Publisher : <![CDATA[Program Studi Fisika Universitas Negeri Jakarta ]]>
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DOI: 10.21009/SPEKTRA.031.02
<![CDATA[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 (λÏ), MuRho (μÏ) and density(Ï) 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.]]>
<![CDATA[FLOW UNITS DETERMINATION USING FLOW ZONE INDICATOR FOR CARBONATE RESERVOIR ]]>
<![CDATA[Abdul Haris]]>;
<![CDATA[Agus Riyanto]]>;
<![CDATA[Tri Aji Adi Harsanto]]>;
<![CDATA[Ambar Rachmanto]]>;
<![CDATA[Adang Sukmatiawa]]>
<![CDATA[ Spektra: Jurnal Fisika dan Aplikasinya Vol 3 No 2 (2018): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 3 Issue 2, August 2018 ]]>
Publisher : <![CDATA[Program Studi Fisika Universitas Negeri Jakarta ]]>
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DOI: 10.21009/SPEKTRA.032.03
<![CDATA[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.]]>
<![CDATA[OPTIMALISASI MEDIA SOSIAL SEBAGAI ALAT PROMOSI UNTUK DESA WISATA LEBAKMUNCANG ]]>
<![CDATA[Hapsari Setyowardhani]]>;
<![CDATA[Hera Susanti]]>;
<![CDATA[Riyanto]]>
<![CDATA[ Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 3 (2019): Dinamisia: Jurnal Pengabdian Kepada Masyarakat: Special Issues 1 "Semangat Perguruan ]]>
Publisher : <![CDATA[Universitas Lancang Kuning ]]>
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DOI: 10.31849/dinamisia.v3i2.2848
<![CDATA[Pariwisata Berbasis Komunitas (Community-based Tourism) saat ini telah berkembang menjadi salah satu bentuk alternatif destinasi wisata yang banyak diminati. Salah satu bentuk khusus dari Pariwisata Berbasis Komunitas adalah Desa Wisata. Desa Wisata dalam lima tahun terakhir ini makin berkembang seiring dengan banyaknya Program Studi Lapangan atau Program Turun ke Desa yang diwajibkan oleh Sekolah-sekolah Menengah Atas (SMA) dan Program Kuliah Kerja Nyata yang diwajibkan oleh Perguruan Tinggi/Universitas. Berdasarkan hasil wawancara dan observasi dari Tim Pengabdian Masyarakat, Fakultas Ekonomi dan Bisnis, Universitas Indonesia, maka kami menemukan bahwa Desa Wisata banyak dikunjungi oleh wisatawan terutama oleh Generasi Millenial karena didukung oleh promosi lewat media sosial, yaitu Youtube, Website, Instagram, dan Facebook. Sehingga Desa Wisata Lebakmuncang sebagai salah satu Desa Wisata sebaiknya mengelola media sosial yang dimilikinya dengan lebih serius, sebagai ujung tombak dari kegiatan promosi]]>
<![CDATA[PERHITUNGAN VOLUME CADANGAN BAHAN GALIAN TAMBANG ANDESIT MENGGUNAKAN METODE RESISTIVITAS DIPOL-DIPOL DAN INTERPOLASI 3D DI LAPANGAN “A” ]]>
<![CDATA[Ade Rama Tanjung Putra]]>;
<![CDATA[Agus Riyanto]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 8 (2019): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2019 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2019.02.PA.11
<![CDATA[Pertumbuhan ekonomi dan gencarnya pembangunan infrastruktur secara nasional menyebakan kebutuhan bahan bangunan meningkat, termasuk Batuan Andesit. Batuan Andesit banyak dimanfaatkan untuk pembentukan pondasi bangunan, pembuatan jembatan serta pengaspalan jalan. Meskipun demikian, data BPS 2013-2015 menunjukkan bahwa peningkatan kebutuhan Batuan Andesit justru disertai dengan penurunan jumlah pengusaha batu andesit serta penurunan volume produksi batu andesit. Untuk menjamin keberlanjutan proses pembangunan nasional, perlu dilakukan pencarian cadangan Batuan Andesit baru. Survei geolistrik resistivitas telah dilakukan dengan 15 lintasan di lokasi “A” Provinsi Gorontalo. Data resistivitas semu yang diperoleh diolah menjadi model dua dimensi melalui inversi linear menggunakan perangkat lunak RES2DINV. Model dua dimensi selanjutnya diinterpolasi menggunakan perangkat Rockworks15 menjadi model tiga dimensi. Analisa model dua dimensi dan tiga dimensi menunjukkan adanya cadangan Batuan Andesit di lokasi “A” dengan batas bawah resistivitas terkecil 198 Ω.m. Adapun volume total cadangan Batuan Andesit sebesar 4.084.375 m3. Hasil ini menunjukkan bahwa Gorontalo berpotensi menjadi penyedia Batuan Andesit untuk menyokong proses pembangunan lokal di sekitarnya. The economic growth and infrastructure development on national scale in Indonesia have caused the demand of building material increased, including andesitic rocks. Andesitic rocks have been utilized for creating building foundation, bridge development as well as road paving. Regardless, according to BPS data from 2013-2015 during these growth, the number of andesitic rocks businesses and mining were decreased. Therefore, to ensure the continuation of national development, an exploration of new andesitic rocks mine is required. Geo-electrical resistivity survey with 15 survey lines has been done at location “A”, Gorontalo Province. The apparent resistivity data acquired have been processed into two-dimensional model through linear inversion using software RES2DINV. This two-dimensional models were further interpolated and extrapolated using software Rockworks15 to into three-dimensional model. Analysis of these models shows a potential andesitic rocks reserves at location “A” with minimum lower cut-off resistivity is 198 Ω.m. The total reserve volume ranging 4.084.375 m3. This result implies that Gorontalo can be a supplier of andesitic rocks to support local development.]]>
<![CDATA[DEKOMPOSISI SPEKTRAL BERDASARKAN TRANSFORMASI WAVELET KONTINYU UNTUK PEMETAAN BATUPASIR GAS DI FORMASI TARAKAN, STUDI KASUS CEKUNGAN TARAKAN – KALIMANTAN UTARA ]]>
<![CDATA[Ika S. Oktavianti]]>;
<![CDATA[Abdul Haris]]>;
<![CDATA[Agus Riyanto]]>;
<![CDATA[Rano Rano]]>;
<![CDATA[Rio I. Sebayang]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 9 (2020): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2020 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2020.01.FA.01
<![CDATA[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.]]>
<![CDATA[DAMPAK PEMBANGUNAN SENTRA IKM MENGGUNAKAN DANA ALOKASI KHUSUS (DAK) TERHADAP BANYAKNYA INDUSTRI KECIL MENENGAH DI INDONESIA ]]>
<![CDATA[Ellita Rahardyan Maharani]]>;
<![CDATA[Riyanto]]>
<![CDATA[ Jurnal Acitya Ardana Vol 2 No 2 (2022): Dinamika Kebijakan Publik IV ]]>
Publisher : <![CDATA[Politeknik Keuangan Negara STAN ]]>
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<![CDATA[Pembangunan Sentra Industri Kecil Menengah (Sentra IKM) merupakan salah satu program kebijakan Pemerintah yang bertujuan untuk pengembangan dan penumbuhan Industri Kecil Menengah (IKM) baru serta untuk percepatan pemerataan pemerataan industri di seluruh Indonesia. Pembangunan Sentra IKM ini dilakukan menggunakan Dana Alokasi Khusus (DAK) Fisik. Penelitian ini bertujuan menganalisis dampak program pembangunan Sentra IKM tahun 2016-2019 terhadap peningkatan banyaknya Industri Kecil Menengah di Indonesia dengan menggunakan Data Industri Mikro Kecil, Data Industri Besar Sedang serta Data Status Operasional Sentra IKM dan menggunakan metode fixed effect difference in difference (FE-DID). Hasil penelitian ini menunjukkan bahwa operasional Sentra IKM di kabupaten/kota di Pulau Sulawesi, Jawa, Nusa Tenggara, Kalimantan, Maluku dan Papua memiliki dampak signifikan terhadap peningkatan banyaknya IKM pada jenis industri pangan, kerajinan dan alat angkut. Namun dampak tersebut berbeda pada jenis industri logam dan alat mesin pertanian di Pulau Jawa dan Sumatera akibat adanya perbedaan kondisi wilayah dan manfaat produktivitas pada masing-masing jenis industri. Hasil penelitian ini menunjukkan bahwa Program Pembangunan Sentra IKM efektif dalam menumbuhkan IKM baru di luar Pulau Jawa dan Sumatera pada jenis industri padat karya]]>
<![CDATA[Pengaruh Volume Impor Bawang Putih Terhadap Harga Eceran Bawang Putih di Indonesia ]]>
<![CDATA[ulfathul arzia]]>;
<![CDATA[Riyanto Riyanto]]>
<![CDATA[ JURNAL DINAMIKA EKONOMI PEMBANGUNAN Vol 6, No 2 (2023): AUGUST ]]>
Publisher : <![CDATA[Fakultas Ekonomika dan Bisnis, Universitas Diponegoro ]]>
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DOI: 10.14710/jdep.6.2.100-117
<![CDATA[Garlic import has been carried out by Indonesian government in 2011-2020 because domestic production is only sufficient for about three to five percent of people’s needs. The addition supply of imported garlic in domestic market due to the import policy is expected to reduce garlic retail price. This study aims to examine the effect of garlic import volume on garlic retail price in Indonesia. By using Distributed Lag Model (DL-Model) and Vector Error Correction Model (VECM) with monthly data for Januari 2011 – December 2020, this study shows that the effect of garlic imports volume begins to reduce the retail price of garlic after one month of import implementation. The effect continues to be significant up to 6 months after the import implementation. These results indicate, within a period of one month (short term), the policy of importing garlic has not been able to affect the retail price of garlic. However, in the long term (after one month to 6 months), the policy of importing garlic significantly affects the decline in retail prices of garlic.]]>
<![CDATA[Partisipasi Rumah Tangga dalam Program Bank Sampah: Studi Kasus di Kota Depok ]]>
<![CDATA[Muhammad Hafiz Wahfiuddin]]>;
<![CDATA[Riyanto Riyanto]]>
<![CDATA[ Jurnal Ilmu Lingkungan Vol 22, No 2 (2024): March 2024 ]]>
Publisher : <![CDATA[School of Postgraduate Studies, Diponegoro Univer ]]>
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DOI: 10.14710/jil.22.2.464-471
<![CDATA[Bank sampah merupakan sebuah bentuk rekayasa sosial untuk mengajak masyarakat peduli akan sampah sekaligus dapat menambah pendapatan rumah tangga. Keberadaannya dapat menjadi solusi menangani sampah rumah tangga. Salah satu faktor penentu keberhasilan bank sampah adalah tingkat partisipasi rumah tangga. Penelitian ini bertujuan untuk menganalisis tingkat partisipasi rumah tangga dalam program bank sampah di Kota Depok serta faktor-faktor yang mempengaruhi partisipasi rumah tangga dalam program bank sampah tersebut. Survei terhadap 182 rumah tangga di Kecamatan Cimanggis, Kecamatan Cinere serta Kecamatan Pancoran Mas Kota Depok dilakukan untuk mengestimasi tingkat partisipasi rumah tangga dalam program bank sampah. Selanjutnya, data survei tersebut dianalisis dengan model regressi logistik (Model Logit) untuk menelaah faktor-faktor yang mempengaruhi tingkat partisipasi rumah tangga dalam program bank sampah. Hasil penelitian menunjukkan bahwa 65,38% responden menyatakan telah berpartisipasi dalam bank sampah. Tingkat Partisipasi rumah tangga yang paling tinggi dalam program bank sampah ada di Kecamatan Cimanggis, diikuti oleh Kecamatan Pancoran Mas dan partisipasi paling rendah ada di Kecamatan Cinere. Lebih lanjut, faktor-faktor yang mempengaruhi partisipasi rumah tangga dalam program bank sampah di Kota Depok adalah faktor jarak dari rumah menuju bank sampah, faktor informasi mengenai bank sampah, serta faktor jenis sampah (organik atau non-organik) yang paling banyak dihasilkan oleh rumah tangga.]]>
<![CDATA[The Application Of Outliers-Out Stacking For Seismic Noise Reduction In Synthetic And Real Data ]]>
<![CDATA[Agus Riyanto]]>;
<![CDATA[Novrizal]]>;
<![CDATA[Supriyanto]]>;
<![CDATA[Abdul Haris]]>
<![CDATA[ Jurnal Geosains Terapan Vol 3 No 1 (2020): Jurnal Geosains Terapan ]]>
Publisher : <![CDATA[Lembaga Ilmu Pengetahuan Indonesia ]]>
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<![CDATA[Seismic data processing is an important stage to improve the signal-to-noise (S/N) ratio and the seismic resolution in the seismic method. The invention of new methods for seismic data processing needs to be examined for its effectiveness and its implications to the whole sequences in the seismic data processing. Outliers-Out Stack (OlO Stack) is a new alternative for stacking method. This method is claimed more effective in eliminating bad sample data, which is contaminated by the outliers. Further, this method is able to improving stacking methods to become optimum. In this study, we applied the OlO Stack method to the synthetic and real data set by comparing its result with 2 other stacking methods, i.e., Mean Stack and α-Trimmed Stack. The three methods are applied to 2D seismic marine data, which have been varied at some processing stages. The results show that the application of OlO Stack in seismic data processing is less effective to reduce seismic random noise compared to the two other methods. However, the application to the synthetic data set with the NMO case, the OlO stack shows better quality, which is indicated by a high correlation coefficient of 0.892196 and a lower RMS error of 0.109851. These results were confirmed by the real data set, where the OlO Stack data is able to reduce ringing and suppress multiple energy better than the other two methods.]]>
