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Adi Susilo

Jurusan Fisika Fakultas MIPA Universitas Brawijaya Jalan Veteran Malang 65145

Author-ID : 2844364

Environmental Science

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Estimation of Reservoir Rock Formation and Hood Stone in Manifestation Area of Tulehu Salahutu Healer - Ambon Island Based on Magnetic Survey Jufri Jufri; Sunaryo Sunaryo; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

The magnetic survey has been done in the area of geothermal manifestations Tulehu, Salahutu, Central Maluku in Ambon Island which has high temperature reservoir. The aim of this research was to know the formations reservoir and cap rock in the area of geothermal manifestations Tulehu. The measurement of data is done using magnetometer PPM type G-856, in the area of around the hot springs Hatuasa Tulehu broadly of 1.78 km x 1.25 km, which consists of 238 measuring points with spacing 50 m. Data processing to begin with IGRF correction, diurnal correction, flat surface reduction, upward continuation and reduction to the pole. Interpretation was based on three cross - section models: slice AB, BC, and DE. The modeling of the results indicates the presence of caprock formations suspected as alluvial (Qa) with susceptibility contrast 0.0102 SI to 0.0416 SI, whereas the reservoir rocks formation is suspected rocks of volcanic Ambon (Tpav) had been around demagnetization with susceptibility contrast 0.0001 SI, in the deepness of 1850 m to 2775 m the surface below.

Geomagnetic Survey In Cangar Area, Batu City, East Java To Assess the Potential of Geothermal Akhmad Afandi; Sukir Maryanto; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 1, No 3 (2012)
Publisher : Natural B, Journal of Health and Environmental Sciences

The prospect ofgeothermal field of Cangar’s in Batu, East Java has been observed based on the geomagneticmethod using aProtonPrecisionMagnetometer (PPM-856).The purpose is to know the magnetic anomalies around the geothermal area. The resultsshown that the residual anomaly distributed in the range of -1.000 nT to 680 nT and the low anomaly(negative) at about -1.000nTlocatedonthe northand westof themanifestations ofhotwater. Geothermalpotential based on the subsurfacemodeling of the structures on the line A-B at position 49 M 0669,071.13174 mT UTM 9,144,184.60107 mU has a value of susceptibilitycontrast of -3.166with a volume of ± 1,550,345m3. Furthermore, on the line C-D at position 49 M 0669,168.601085 mT UTM 9,143,915.10292 mU shown a value of susceptibilitycontrast at -0.018with thevolume of ± 16,610m3.

Landslide Zone Investigation with Resistivity Method In Jombok Village, Ngantang District, Malang Regency Pitoyo Widhi Atmoko; Adi Susilo; Arief Rahmansyah
Natural B, Journal of Health and Environmental Sciences Vol 1, No 3 (2012)
Publisher : Natural B, Journal of Health and Environmental Sciences

Has done research in the Jombok Village, it’s village isone of the areas prone to landslide, this can be seen the existence of land subsidence that has occurred more than once in the same place and of the circumstances surrounding the research that was once a forest area, now used as farmland by human residents. One method used in this research is using geoelectric resistivity method. The data has obtained from geoelectric results, in the entire area has a type of clay and sand, whereas in areas that are kind of soil is a decline in soil, addition of these data, hazardous Jombok Village, Hamlet Songkorejo demonstrated the value of score susceptibility of 3.85, where the value is included in the category of susceptible/prone.

Correlation of Well and Seismic Log Data for Spreading Litology and Porosity Reservoir Hydrocarbon Formation Gumai Basin South Sumatera Timur Dikman; Adi Susilo; Said Sabbeq
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

Integration of seismic data and well log is carried on the field X to identify the distribution of lithology and porosity in the reservoir target zone in this field. With the purpose to get a good interpretation of the subsurface in the process of hydrocarbon exploration. The integration of data is done by using acoustic impedance inversion analysis. Two types of acoustic impedance inversion method is applied to the well log data and seismic, i.e maximum likelihood sparse spike and a model-based inversion. Both of them have a high correlation coefficient and a low error rate. Sparse spike inversion result was selected to use in the next process as it has an acoustic impedance value that is more similar to the well log acoustic impedance value. Acoustic impedance models correlated with the lithological profiles of well log is used to predict the spread of reservoir lithology. Sparse spike inversion results are then used as input to the module EMERGE on Hampson Russell Suite 9 software, to predict the distribution of porosity from seismic volume. The volume of porosity is determined from regression function crossplot between acoustic impedance inversion results with fixed porosity well logs.

Co-Authors Akhmad Afandi Arief Rahmansyah Jufri Jufri Pitoyo Widhi Atmoko Said Sabbeq Sukir Maryanto Sunaryo Sunaryo Timur Dikman

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