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Inferred fluid saturation zone in geothermal reservoir derived from induced micro-seismicity attenuation tomography
Prabowo B.S.a, Sule M.R.a, Nugraha A.D.a, Hasanah M.U.b
a Institut Teknologi Bandung, Indonesia
b Padjadjaran University, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]Tomography method has been successfully determine the structure of the lithosphere and volcanic subsurface models using global tectonic and local earthquakes, then this study tried to apply in a smaller area in local activities as the production of geothermal energy resources. The subsurface attenuation structure in geothermal field is estimated by using micro-seismicity data; these data obtain from fluid injection activities for a period time of around 2 months within 2005 and is recorded by 17 seismometers. The data input for attenuation tomography is attenuation operator [t∗], which was calculated by spectral fitting method. t∗ calculated from 1,157 P-waves and 1,111 S-waves were used as input data, which are generated from 175 MEQ events. In order to calculate Qp and Qs structures by using attenuation tomographic inversion, the information about 3-D Vp and Vs structures is taken from previous study. After inversion process, it has been observed low Qp and Qs values around reservoir zone that correspond with the zone of low Vp/Vs ratio. These anomalies suggest associated with steam saturated zone. As conclusion, the results of attenuation tomographic inversion have given a new insight in determining reservoir characteristics, especially in estimating steam saturated zone inside reservoir.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Attenuation tomography,Fluid saturations,Geothermal reservoir,Inversion process,Reservoir characteristic,Subsurface attenuation,Tomographic inversion,Tomography methods[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.3997/2214-4609.201413262[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]