@misc{eprints56652,
           month = {September},
           title = {IDENTIFIKASI ZONA PROSPEK RESERVOIR MIGAS DAN GAS 
BIOGENIK MENGGUNAKAN DATA LOG, PETROFISIKA DAN 
GEOKIMIA PADA LAPANGAN ?MN? CEKUNGAN NIAS SUMATERA 
UTARA},
          author = {1515051017 MAULINA},
         address = {Universitas Lampung},
       publisher = {Fakultas Teknik},
            year = {2019},
             url = {http://digilib.unila.ac.id/56652/},
        abstract = {The fore-arc basin has been become a target of reservoir searching for a long time 
based on previous expert studies, where the indications of Late-Miocene carbonate 
age that could act as a hydrocarbon reservoir was found. ?MN? Field located in the 
Nias Basin, one of the fore-arc basin located in West of Sumatera. As the object of 
this study, it is hoped that the hydrocarbon reservoir in the fore-arc basin is expected 
to be discovered and to identify the characteristics of rocks that potential to become 
hydrocarbon reservoirs. Geochemical data becomes supporting data regarding the 
presence of gases that are identified as biogenic gases because of the content of 
methane as the main composition. Identification of the existence of reservoir zones 
and source rock is done by qualitative interpretation of log data from the L-1, P-1, 
S-1, T-1 and UB-1 Well. Then, the petrophysical parameters are analyzed in the 
form of shale volume (Vsh), effective porosity, resistivity water (Rw), and water 
saturation (Sw) to determine the type of reservoir?s fluid. After knowing the 
petrophysical parameters value, distribution area correlation of reservoir and source 
rock can be made in the study area. The results of the interpretation indicated that 
the presence of biogenic gas was detected in S-1 and P-1 Well on limestone 
lithology with Late Miocene age. Biogenic gas in the ?MN? Field has PHIE value 
characteristics around 17,0 ? 32,1 \% and Sw value is 39,9 \% - 61,3 \%.
Keywords: biogenic gas, hydrocarbon reservoir, immature source rock, limestone, 
Late Miocene


The fore-arc basin has been become a target of reservoir searching for a long time 
based on previous expert studies, where the indications of Late-Miocene carbonate 
age that could act as a hydrocarbon reservoir was found. ?MN? Field located in the 
Nias Basin, one of the fore-arc basin located in West of Sumatera. As the object of 
this study, it is hoped that the hydrocarbon reservoir in the fore-arc basin is expected 
to be discovered and to identify the characteristics of rocks that potential to become 
hydrocarbon reservoirs. Geochemical data becomes supporting data regarding the 
presence of gases that are identified as biogenic gases because of the content of 
methane as the main composition. Identification of the existence of reservoir zones 
and source rock is done by qualitative interpretation of log data from the L-1, P-1, 
S-1, T-1 and UB-1 Well. Then, the petrophysical parameters are analyzed in the 
form of shale volume (Vsh), effective porosity, resistivity water (Rw), and water 
saturation (Sw) to determine the type of reservoir?s fluid. After knowing the 
petrophysical parameters value, distribution area correlation of reservoir and source 
rock can be made in the study area. The results of the interpretation indicated that 
the presence of biogenic gas was detected in S-1 and P-1 Well on limestone 
lithology with Late Miocene age. Biogenic gas in the ?MN? Field has PHIE value 
characteristics around 17,0 ? 32,1 \% and Sw value is 39,9 \% - 61,3 \%.
Keywords: biogenic gas, hydrocarbon reservoir, immature source rock, limestone, 
Late Miocene}
}