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PENDUGAAN INTRUSI AIR LAUT DENGAN METODE GEOLISTRIK RESISTIVITAS 1D DI PANTAI PAYANGAN DESA SUMBEREJO JEMBER Santoso, Teguh; Piyantari, Nurul; Hiskiawan, Puguh
BERKALA SAINSTEK Vol 1, No 1 (2013)
Publisher : My Home

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Telah dilakukan penelitian di daerah Payangan Desa Sumberejo Kabupaten Jember dengan menggunakan metode geolistrik resistivitas 1-Dimensi konfigurasi Schlumberger untuk mengetahui litologi bawah permukaan terkait adanya pendugaan intrusi air laut di daerah tersebut. Dalam penelitian ini, setiap lintasan pengukuran mempunyai panjang 300 m. Data yang dihasilkan berbentuk nilai resistansi dan digunakan untuk mencari nilai resistivitas semu. Data tersebut kemudian diolah dengan menggunakan Software IPI2win dan Rockwork untuk mendapatkan pencitraan atau gambaran litologi batuan bawah permukaan. Dari hasil inversi menggunakan Software IPI2win dan Rockwork terlihat adanya intrusi air laut pada daerah tersebut. Hal tersebut dapat dilihat dari hasil pengolahan data keempat lintasan., pada lintasan 1, lintasan 2 dan lintasan 3 didominasi oleh batuan pasir dan kerikil, sehingga pada lintasan ini mudah ditembus oleh air laut. Sedangkan pada lintasan 4 berkemungkinan untuk tidak tertembus oleh air laut, hal ini dikarenakan pada lintasan ini terdapat lapisan lempung yang dapat dijadikan sumur oleh penduduk setempat.

Agrogeofisika Metode Self Potential Guna Evaluasi Lahan Perkebunan Tebu Hiskiawan, Puguh
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 2, No 1 (2016)
Publisher : UNIVERISTAS PGRI MADIUN

Agrigeofisika adalah cabang geofisika yang berhubungan dengan ilmu pertanian . Geofisika adalah ilmu yang mempelajari penerapan prinsip-prinsip fisika untuk mempelajari bawah permukaan bumi , baik dalam dangkal skala ( dari kerak ke mantel ) atau skala (hingga inti bumi ) . Potensi diri adalah potensial listrik alami yang ada di bumi yang timbul dari berbagai sumber . Tanah merupakan sumber daya alam dengan alam tetap , menjadi kebutuhan manusia akan lahan terus meningkat . Dalam kegiatan ini akan dilakukan studi literatur tentang karakteristik perkebunan tebu , juga melakukan studi tentang agrigeofisika . perkebunan Asessmen yang telah dipelajari memiliki potensi untuk melakukan pemnafaatn saluran waduk . Kegunaan penelitian ini atau lokasi ini untuk potensi penyimpanan cadangan air sebagai perkebunan tebu proses irigasiÂ

PENDUGAAN INTRUSI AIR LAUT DENGAN METODE GEOLISTRIK RESISTIVITAS 1D DI PANTAI PAYANGAN DESA SUMBEREJO JEMBER Teguh Santoso; Nurul Piyantari; Puguh Hiskiawan
BERKALA SAINSTEK Vol 1 No 1 (2013)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Telah dilakukan penelitian di daerah Payangan Desa Sumberejo Kabupaten Jember dengan menggunakan metode geolistrik resistivitas 1-Dimensi konfigurasi Schlumberger untuk mengetahui litologi bawah permukaan terkait adanya pendugaan intrusi air laut di daerah tersebut. Dalam penelitian ini, setiap lintasan pengukuran mempunyai panjang 300 m. Data yang dihasilkan berbentuk nilai resistansi dan digunakan untuk mencari nilai resistivitas semu. Data tersebut kemudian diolah dengan menggunakan Software IPI2win dan Rockwork untuk mendapatkan pencitraan atau gambaran litologi batuan bawah permukaan. Dari hasil inversi menggunakan Software IPI2win dan Rockwork terlihat adanya intrusi air laut pada daerah tersebut. Hal tersebut dapat dilihat dari hasil pengolahan data keempat lintasan., pada lintasan 1, lintasan 2 dan lintasan 3 didominasi oleh batuan pasir dan kerikil, sehingga pada lintasan ini mudah ditembus oleh air laut. Sedangkan pada lintasan 4 berkemungkinan untuk tidak tertembus oleh air laut, hal ini dikarenakan pada lintasan ini terdapat lapisan lempung yang dapat dijadikan sumur oleh penduduk setempat.

Pengaruh Pola Kontur Hasil Kontinuasi Atas pada Data Geomagnetik Intepretasi Reduksi Kutub Puguh Hiskiawan
Saintifika Vol 18 No 1 (2016)
Publisher : Jurusan Pendidikan MIPA FKIP Universitas Jember

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Metode geomagnetik adalah salah satu metode geofisika yang digunakan untuk memeriksa struktur batuan di bawah permukaan bumi . Penelitian ini dipelajari dengan menggunakan pengaruh kontur kelanjutan atas didasarkan pada pengurangan data kutub . Penelitian ini menjelaskan untuk membandingkan pada pengukuran dan interpretasi data dengan beragam hasil kontur. Metode penelitian dilakukan studi lintasan-lintasan di daerah penelitian yang muncul geologi karakteristik fisik dalam pemantauan secara langsung dan pemantauan tidak langsung . Hasil penelitian ini disebut keuntungan dari nilai tertinggi yang masalah respon dari geomagnetik dan potensi konduktivitas contouring pada daerah diteliti paling tajam.

Deployment Porosity Estimation of Sandstone Reservoir in The Field of Hidrocarbon Exploration Penobscot Canada Himmah Khasanah; Puguh Hiskiawan; Supriyadi Supriyadi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Porosity is defined as the percentage of empty spaces for storing fluid contained in rock.. Porosity becomes one of the requirements for determining reservoir which is good or bad. Porosity can be obtained from the seismic data has been acquired and processed previously; to obtain porosity from seismic data it is necessary determine an acoustic impedance value first. Acoustic impedance and porosity can be obtained by using deterministic inversion and neural network. Deterministic inversion operates in minimizing the difference between the acoustic impedance inversion results with the original. Deterministic inversion is part of the model-based inversion. The result of the inversion showed a correlation of 0.8 on a scale of 0-1. This result can be categorized a good inversion. Then acoustic impedance volume converted into volume porosity by using neural network. Neural network method showed a value of 0.2 for the difference between the acoustic impedance volume and volume porosity. The result of deterministic inversion and neural network method were the value of the distribution of porosity in the reservoir sandstone ranges from 13% to 23%.

Seismic Resolution Enhacement with Spectral Decomposition Attribute at Exploration Field in Canada Illavi Praseti Pebrian; Puguh Hiskiawan; Artoto Arkundato
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Seismic data that has a high resolution is very important used to describe hydrocarbon reservoirs in detail. Inconventional seismic data, the available bandwidth is limited and cannot map the thin layers that seen on well data, therefore, the way to improve the resolution of seismic data is needed. In this research, the method used to improve the resolution of seismic data is spectral decomposition. Spectral decomposition can characterize the seismic response at a particular frequency, and can also be used to filter the data, eliminating signals that are unwanted or increase the quality of data. Spectral decomposition method used is the Continuous Wavelet Transform (CWT). This study had been carried out by implementing CWT in certain wavelet and frequency to analyze the seismic resolution. The various wavelets had been used this study, are Morlet and Gaussian. The various frequencies of 2 Hz, 14 Hz, 20Hz, 25 Hz, 31 Hz, and 51 Hz in 1180 inline. The results obtained from this study show that the use of higher frequency shows better separation. In addition, the application of seismic data in the area of research Penobscot, the best separation of thin layer is in the tuning frequency 51 Hz using Morlet wavelet in 1180 inline.

Instantaneous Analysis Attribute for Reservoir Characterization at Basin Nova-Scotia, Canada Ruliyanti Ruliyanti; Puguh Hiskiawan; Artoto Arkundato
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Analysis of data seismic attributes used in the Basin of Nova-Scotia, Canada. This analysis aimed to determine the distribution of reservoir and reservoir characterization. Seismic attribute used the instantaneous attributes which included instantaneous amplitude, instantaneous frequency and instantaneous phase while for reservoir characterization used crossplot between instantaneous attributes with well log data. The attribute ran on specified target zone, the attribute analysis to determine the distribution of the reservoir. Crossplot conducted to determine the characteristics or physical properties of the reservoir in the target zone. Furthermore, lithologic and stratigraphic analysis to determine the geological conditions of the target zone. The study was conducted in inline and crossline of Logan Canyon formations. Research results obtained in the form of small fractures that are not visible and the two major faults with direction Northwest-Southeast and has the attributes of instantaneous output value is low. This fault is also the location of a distribution reservoir contained in the target zone. For the reservoir characteristics such as porosity and acoustic impedance range of values obtained respectively, so it can be said that the target zone is dominated by a sandstone reservoir form.

Time-Depth Curve Evaluation Method for Conversion Time to Depth at Penobscot Field, Nova-Scotia, Canada Fitri Rizqi Azizah; Puguh Hiskiawan; Sri Hartanto
Jurnal ILMU DASAR Vol 17 No 1 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Oil and natural gas as a fossil fuel that is essential for human civilization, and included in nonrenewable energy, making this energy source is not easy for updated availability. So that it is necessary for exploration and exploitation reliable implementation. Seismic exploration becomes the method most widely applied in the oil, in particular reflection seismic exploration. Data wells (depth domain) and seismic data (time domain) of reflection seismic survey provides information wellbore within the timescale. As for the good interpretation needed information about the state of the earth and is able to accurately describe the actual situation (scale depth). Conversion time domain into the depth domain into things that need to be done in generating qualified exploration map. Method of time-depth curve to be the method most preferred by the geophysical interpreter, in addition to a fairly short turnaround times, also do not require a large budget. Through data information check-shot consisting of the well data and seismic data, which is then exchanged plotted, forming a curve time-depth curve, has been able to produce a map domain depth fairly reliable based on the validation value obtained in the range of 54 - 176m difference compared to the time domain maps previously generated.Keywords: Energy nonrenewable, survei seismik, peta domain waktu, peta domain kedalaman, time-depth curve

Influence of the Gamma Ray towards Porosity Evaluation of the Rocks Using Well Log Measurement Puguh Hiskiawan
Jurnal ILMU DASAR Vol 15 No 2 (2014)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Well Log method is one of the geophysics methods used to examine rock structure under earth surface. This research is studied by using utilizing influence of the gamma ray to physical parameter on well log measurement. This research is explained to compare the measuring data with some physical parameters. The results shown that the rock density was about 2.00 – 2.50 g/cc, the rock porosity was round 2.00 – 2.50 g/cc, whereas the resistivity has 2 Ωm to 60 Ωm. All those vaiables were measured at same depth 3420 – 3470 ft. Furthermore, the self potential value was the highest negatively. The result from physical parameter provided meaning about anomaly positively of hydrocarbon existing.Keywords: Well Log, gamma ray, hydrocarbon

Upward Continuation of Subsurface Anomalies Utilizing Magnetic Data in The Bedadung Watershed, Jember City Yudhistira Adi Nugraha; Puguh Hiskiawan; Supriyadi Supriyadi
Jurnal ILMU DASAR Vol 16 No 2 (2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Magnetic method is a geophysics method to determine the kind of subsurface material in certain depth by identifying the magnetic characteristics of rock based on the value of magnetic suspetibility. The data analysis described the subsurface anomaly using upward continuation filter. It separated local anomaly and regional anomaly by lifting research area in certain elevation. The raw data research was the total of magnetics data around Bedadung watershed, Jember. It was proceeded to obtaine magnetic anomaly curve on 5 line in contour map. It was digitalized and use as data input of magpick and upward continuation filter program. Upward continuation program was conducted using variation of area elevation in each track from 1 m up to 30 m. magnetic anomaly from this program is compared to magpick result showed that the magnetic anomaly curve on each line have good suitability with the accuracy 0,93%. Therefore, the continuation program become the alternative in magnetic data processing.

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