Distribusi Frekuensi-Magnitudo Gempa Mikro Akibat Aktivitas Stimulasi Hidrolik pada Lapangan Panas Bumi Tipe Hot Dry Rock (HDR)

Nanda Hanyfa Maulida ; Muhamad Firdaus Al Hakim ; Hesti ; Suharno
Jurnal Teknik dan Teknologi Indonesia (JTTI) 📅 2023 Vol 1, No 3 🔗 DOI: 10.62287/jtti.v1i4.67
Abstract
A series of hydraulic stimulations were conducted to enhance permeability and increase the production of hot fluid in a Hot Dry Rock (HDR) geothermal field. The stimulation involved injecting water into the hot rock, inducing hydraulic fracturing and resulting in over 2000 micro-earthquake events within the field. Utilizing existing microearthquake data, an analysis of the microearthquake distribution was performed, along with calculating the gradient of the frequency-magnitude distribution of microearthquakes (b-value) to assess the heterogeneity conditions induced by high pore pressure. The hypocenter distribution is centered around injection and production locations, displaying a trend that aligns with the main structure trending southwest to northeast. The mapping of b-values indicates elevated values in the hydraulic stimulation area, believed to be associated with increased pore pressure resulting from the higher fluid volume in that region. Moreover, high b-values were identified beneath the production area, suggesting the potential migration of injection fluid from the hydraulic stimulation process.
Keywords
Geothermal Exploration; Micro-Earthquake; Frequency-Magnitude Distribution; Hot Dry Rock; B-Value
How to Cite

Nanda Hanyfa Maulida, et al. (2023). Distribusi Frekuensi-Magnitudo Gempa Mikro Akibat Aktivitas Stimulasi Hidrolik pada Lapangan Panas Bumi Tipe Hot Dry Rock (HDR). Jurnal Teknik dan Teknologi Indonesia (JTTI), 1(3). https://doi.org/10.62287/jtti.v1i4.67

Nanda Hanyfa Maulida; Muhamad Firdaus Al Hakim; Hesti; Suharno, "Distribusi Frekuensi-Magnitudo Gempa Mikro Akibat Aktivitas Stimulasi Hidrolik pada Lapangan Panas Bumi Tipe Hot Dry Rock (HDR)," Jurnal Teknik dan Teknologi Indonesia (JTTI), vol. 1, no. 3, 2023.

Nanda Hanyfa Maulida; Muhamad Firdaus Al Hakim; Hesti; Suharno. "Distribusi Frekuensi-Magnitudo Gempa Mikro Akibat Aktivitas Stimulasi Hidrolik pada Lapangan Panas Bumi Tipe Hot Dry Rock (HDR)." Jurnal Teknik dan Teknologi Indonesia (JTTI), vol. 1, no. 3, 2023.

Nanda Hanyfa Maulida; Muhamad Firdaus Al Hakim; Hesti; Suharno. "Distribusi Frekuensi-Magnitudo Gempa Mikro Akibat Aktivitas Stimulasi Hidrolik pada Lapangan Panas Bumi Tipe Hot Dry Rock (HDR)." Jurnal Teknik dan Teknologi Indonesia (JTTI) 1, no. 3 (2023).

Nanda Hanyfa Maulida, et al. (2023) 'Distribusi Frekuensi-Magnitudo Gempa Mikro Akibat Aktivitas Stimulasi Hidrolik pada Lapangan Panas Bumi Tipe Hot Dry Rock (HDR)', Jurnal Teknik dan Teknologi Indonesia (JTTI), 1(3). doi: 10.62287/jtti.v1i4.67.

Nanda Hanyfa Maulida; Muhamad Firdaus Al Hakim; Hesti; Suharno. Distribusi Frekuensi-Magnitudo Gempa Mikro Akibat Aktivitas Stimulasi Hidrolik pada Lapangan Panas Bumi Tipe Hot Dry Rock (HDR). Jurnal Teknik dan Teknologi Indonesia (JTTI). 2023;1(3).

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