Muhammad Edisar
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Published : 15 Documents
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Analisa Konduktivitas Hidrolika Pada Sistim Akuifer M, Juandi; Ahmad, Adrianto; Edisar, Muhammad
Komunikasi Fisika Indonesia Vol 9, No 04 (2012)
Publisher : Komunikasi Fisika Indonesia

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Hasil penelitian telah diperoleh bahwa ada empat lapisan penyusun akuifer bebas yangditemukan berdasarkan data geolistrik dengan urutan litologinya adalah tanah penutup, pasir, clay danlempung. Ketebalan lapisan yang diperoleh berdasarkan data geolistrik berturut – turut adalah 10 m,2,5 m, 1 m dan 1 m. Parameter akuifer bebas dalam hal ini konduktivitas hydraulik rata – rata sistimakuifer yang diteliti adalah sebesar 0,795 m/hari. Nilai konduktivitas hydraulic rata-rata inimerupakan factor untuk melihat kondisi keberlanjutan suatu akuifer bawah tanah.
Avo Fluid Inversion (AFI) Untuk Analisa Kandungan Hidrokarbon Dalam Resevoar Edisar, Muhammad; Malik, Usman
Komunikasi Fisika Indonesia Vol 9, No 5 (2012)
Publisher : Komunikasi Fisika Indonesia

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Selama ini metoda AVO telah banyak digunakan untuk men-determinasi keberadaan hidrokarbon daridata seismik. Namun demikian, pada umumnya hanya memberikan hasil secara kualitatif, tanpa kuantifikasitingkat kepercayaan. Oleh karena itu, diperlukan suatu metoda yang dapat membantu mengatasi masalah ini.AVO Fluid Inversion (AFI) merupakan perluasan dari metoda AVO konvensional. Perluasandilakukan dengan menambahkan simulasi harga Intercept (A) dan Gradient (B) untuk berbagai kemungkinanharga parameter elastik sand dan shale serta kandungan fluidanya. Harga A dan B yang diturunkan dari dataseismik kemudian dapat dikalibrasikan terhadap data sumur dengan menggunakan hasil simulasi tersebut.Sehingga pada akhirnya, dapat diberikan harga probabilitas keberadaan hidrokarbon pada area studi yangkemudian dapat digunakan untuk menggambarkan penyebaran hidrokarbon pada daerah eksplorasi.Pada penelitian ini, metoda AVO Fluid Inversion (AFI) diaplikasikan pada data 3D-seismik di daerahdelta Mahakam. Hasil menunjukkan bahwa determinasi keberadaan gas lebih mudah dilakukan dibandingkandeterminasi keberadaan minyak (oil). Peta probabilitas hidrokarbon menggambarkan keberadaan minyak dangas mengikuti pola-pola channel yang berkembang pada daerah studi.
RESERVOIR STEAM FLOOD MODELING BASED ON 4D SEISMIC AND ROCK PHYSICS Edisar, Muhammad; Malik, Usman
Komunikasi Fisika Indonesia Vol 10, No 7 (2013)
Publisher : Komunikasi Fisika Indonesia

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Reservoir steam flood modeling based on Time Lapse (4D) seismic and Rock Physics data was constructed in Pelangi oil field on central Sumatra Basin. Model used to monitoring and tracking steam flood and production related changes in the reservoir. A model of the reservoir steam flood was constructed for a pattern steam flood in Area X of the field. The model was based on a geostatistical geological model and populated with temperature and porosity. Pressure and saturation properties were added to provide the necessary input for seismic modeling. Through a rock physics model based on the core analysis, the elastic properties (Vp, Vs and density) were determined. These elastic properties were used to determine the seismic response of the model with and without steam flood.The results of the model indicated, that from the rock physics modeling using Gassmann equation, steam flood decreases the Vp by an average of 20-25% in the reservoir sands. Rock physics analysis also shown that shear velocities are also sensitive to steam flood, with an average decrease of 12%. However, the Gassmann calculation results shown that Vs is insensitive to steam flood. This discrepancy is probably caused by Gassmanns assumptions that no chemico-physical interactions exist between the rocks and pore fluids. Time shifts in seismic modeling events provided an indication of the presence of steam flood in the overlying reservoir. The relationship between time shift and steam thickness was strong for thick steam, but it was not possible to distinguish thin steam zones from thick hot oil zones solely on the basis of time shift. At the same time, tuning between the steams related and geologically related seismic events influenced seismic amplitudes. It appears that a combination of attributes is necessary to resolve the effects of steam on the 4D seismic data acquired over of the field.Keywoods : Reservoir, Seismic, Rock
ANALISIS ELASTISITAS BATU BATA YANG DIBUAT DENGAN TEKNIK PEMANAS TENAGA SURYA MENGGUNAKAN REFLEKTOR CERMIN CEKUNG Yani, Anda; Edisar, Muhammad; Surbakti, Antonius
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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The research has been conducted to investigate the quality of some bricks. The quality of the bricks was tested after heating by solar energy using concave mirror reflector on their elastic properties. The quality of the bricks after being heated was compared with the bricks that were prepared by conventional way (by heating using fire). The elasticity properties were calculated from the time propagation of the seismic wave in the bricks. The results of the research showed that the elasticity of the bricks heated using solar energy for 80 hours was 50.623 (N/m²), and the lowest elasticity heated for 10 hours was 16.530 (N/m). While the elasticity of bricks heated using fire with the distance of 0.7 meters was 72.199 (N/m²) and the lowest elasticity of bricks with the distance from fire of 0.76 meter was 32.555 (N / m²). The results also showed that the quality of the bricks was better through direct burning using fire compared to the one prepared by solar energy.
ESTIMASI PERMEABILITAS RESERVOIR DARI DATA LOG MENGGUNAKAN JARINGAN SYARAF TIRUAN PADA FORMASI MENGGALA PT CHEVRON PACIFIC INDONESIA Zamri, Liana; M, Juandi; Edisar, Muhammad
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A research has been conducted to apply artificial neural network in order to predict permeability of reservoir. Method of this research was analytical description. Backpropagation neural network used input layer of 4 neurons, hidden layer of 6 neurons, and output layer of 1 neuron, which was optimal architecture in this research. Result of this research showed that the biggest correlation was 0,9999 for BL#33 well and the lowest correlation was 0,9977 for BL#19 well. The rmse value of BL#19 well was 1,02%, BL#33 well was 0,21%, and was 2,42% for BL#34 well. When rmse decreased, prediction disposed approximated true value. This results indicated the solution based on backpropagation model was reasonable and feasible.
DESTILASI AIR LAUT MENGGUNAKAN PEMANAS MATAHARI DENGAN REFLEKTOR CERMIN CEKUNG Tambunan, Fanrico Sanjaya; Edisar, Muhammad; M, Juandi
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A research has been done in distilling seawater using solar heater with and without concave mirror reflector. The concave reflector mirror has been made with its diameter of 2.2 meters, height of 0.3 meters and focus of 1 meter. The reflector was placed on the ground and was directly illuminated by the sunlight. The collector which contained seawater was exactly placed on the focus of the reflektor. During the heating, thetemperature was measured every hour from 08.00 to 16.00 WIB. The observation was done for seven days. The results showed that maximum temperature of seawater using the reflector was about 100o C and 140oC at the focus and the best daily destilling volumewas 688 ml. The results distilling without reflector showed maximum temperature of seawater was about 64oC and the best daily destilling volume was 180 ml. The laboratory testing of the samples before and after distilling showed that there was significantly improvement of water quality, especially in salinity which decreased to be zero after distilling.
PENYEDIAAN AIR TAWAR DARI PENYULINGAN ENERGI SURYA MENGGUNAKAN TEKNIK REFLEKTOR CERMIN CEKUNG Edisar, Muhammad; Malik, Usman
Komunikasi Fisika Indonesia Vol 12, No 10 (2015)
Publisher : Komunikasi Fisika Indonesia

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A research has been conducted to produce clean water using solar energy withconcave mirror reflector as the heater. The reflector made by 2.2 meters ofdiameter, 0.3 meters of height and 1 meter focus of the reflector. The reflectormade can be illuminated by the sunlight directly. The media of container filledwater samples to destilate that placed on focus of the reflektor. The temperature ofwater sample heated measured every one hour with time of observation from08.00 to 16.00 WIB. The observation was done if weather is good for seven days.The results of the research show that the maximum temperature of water sampleheated 100o C using the reflector. The maximum temperature of water samplewithout reflector 64oC. T he r esulut o f water volume destilated very good. Thelaboratory test of the water samples before and after distillated show that waterquality treatment increase significantly.Keywords: solar energy, clean water, distillation, concave mirror reflector
ANALISIS KELAYAKGUNAAN AIR TANAH DALAM DITINJAU DARI ASPEK KUALITAS DAN GEOLOGI LINGKUNGAN DI KOTA TEMBILAHAN INDRAGIRI HILIR Qadafi, Muammar; Amin, Bintal; Edisar, Muhammad
Jurnal Ilmu Lingkungan Vol 9, No 2 (2015)
Publisher : Jurnal Ilmu Lingkungan

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ABSTRACTThis study was conducted to determine the feasibility of groundwater in the Tembilahan city in terms of environmental geology aspect and physic-chemical parameters. The Schlumberger Array of geoelectric technique used to determine the depth and types of aquifers in Tembilahan city, whereasthe quality of ground water determined byLaboratory testing water samples from existing wells. Groundwater that is used by the public is a semi confined groundwater at a depth of 147m to 208m and located under a mudstone layer. Physically the water was slightly yellowish, but odorless, water temperature ranges between 28-34°C, the conductivity ranged from 474-1187μs/cm, and total dissolved solids (TDS) ranging from 50mg/l-726mg/l. Water chemistry parameters analyzed The degree of acidity (pH) ranged from 6.48 to 7.32, hardness as CaCO3 between 21-126m /l, iron (Fe) 0.1-1 mg/l, nitrate 0,0417-0,0604mg/l, sulfur 2-7mg/l and chloride 11-224mg/l. Persistence of chemical parameters of water based on Permenkes No.416/Menkes/Per/IX/1990, the location of aquifers that are under a layer of mudstone causing semi confined ground water in Tembilahan City was not fit for use specially for consumption water.Key words: feasibility, ground water, environtmental geology
MODEL VOLUME RESAPAN AIR HUJAN PADA SUMUR RESAPAN DI KECAMATAN RUMBAI KOTA PEKANBARU Gultom, Kusnadi; Edisar, Muhammad
Komunikasi Fisika Indonesia Vol 13, No 12 (2016)
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Telah dilakukan penelitian tentang Volume Resapan Air Hujan pada Sumur Resapan di Kecamatan Rumbai Kota Pekanbaru. Perhitungan volume resapan diperoleh menggunakan data geolistrik dua dimensi. Konfigurasi elektroda Schlumberger dengan bentangan sebesar 164 meter. Hasil pengolahan data geolistrik menggunakan software Res2dinv diperoleh nilai tahanan jenis litologi penyusun lapisan-lapisan tanah di daerah pengukuran. Berdasarkan nilai tahanan jenis litologi yang diperoleh, maka diketahui nilai permeabilitas lapisan tanah di daerah penelitian sebesar 75,41 m/hari. Menggunakan data curah hujan rata-rata Kota Pekanbaru dari BMKG sebesar 0,27 mm3/jam maka diperoleh hasil penelitian volume resapan air hujan untuk sumur resapan dimensi satu dengan tipe rumah 36 sebesar 15,23 m3; volume resapan dimensi dua dengan tipe rumah 38; tipe 45; dan tipe 48 diperoleh sebesar 19,58 m3. Sedangkan untuk sumur resapan dimensi IV dengan tipe rumah 54 diperoleh volume resapan air hujan sebesar 40,82 m3. Pemanfaatan air tanah oleh penduduk setempat adalah 8674,02 m3/hari, dan pemanfaatan oleh industri sebesar 0,4 m3/hari.
POLA ALIRAN AIR BAWAH TANAH DI PERUMNAS GRIYA BINA WIDYA UNRI MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI ELEKTRODA SCHLUMBERGER Edisar, Muhammad; Damayana, Listia
Komunikasi Fisika Indonesia Vol 13, No 12 (2016)
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The research about groundwater flow pattern in Perumnas Griya Bina Widya UNRI Tampan subdistrict of Pekanbaru have been done. Groundwater flow pattern mode from one dimension geoelectric data of Schlumberger electrode configuration. Based on formation of lithology resulted from geoelectric data, resulted four formation of lithology from block A to block G of the Perumnas. From the mapping resulted groundwater flow pattern on the first formation layer groundwater flow from northeast to south the to the southwest with 10 – 39.1 meters of thickness of layers. On the second formation groundwater flow from the northeast to north the to the south with 8 – 52.8 meters of thickness of layers. The groundwater flow thrith layers from the northeast to the southeast thickness in this layers 2.5 – 75.8 meters. Forwhile groundwater flow on the fourth layers from the north to the southeast by the thickness from 3.5 – 79.1 meters.