Model Panas Bumi Tentatif dan Penentuan Target Lokasi Sumur Produksi Lapangan RFCH dengan Menggunakan Metode Magnetotellurik.
DAFTAR ISI
Halaman
KATA PENGANTAR ........................................................................................... v
SARI .................................................................................................................... vii
ABSTRACT ........................................................................................................ viii
DAFTAR ISI ......................................................................................................... ix
DAFTAR GAMBAR ............................................................................................xii
DAFTAR TABEL................................................................................................. xv
DAFTAR LAMPIRAN ....................................................................................... xvi
BAB I PENDAHULUAN....................................................................................... 1
1.1 Latar Belakang Penelitian .................................................................................1
1.2 Batasan dan Identifikasi Masalah ..................................................................... 3
1.3 Maksud dan Tujuan Penelitian ......................................................................... 4
1.4 Manfaat Penelitian ........................................................................................... 4
1.5 Kerangka Pemikiran ......................................................................................... 4
1.6 Lokasi dan Waktu Penelitian ........................................................................... 6
BAB II TINJAUAN PUSTAKA ............................................................................ 7
2.1 Geologi Regional Daerah Penelitian ................................................................ 7
2.1.1. Geomorfologi / Fisiografi ...................................................................... 7
2.1.2. Stratigrafi Daerah Penelitian ................................................................. 8
2.1.2.1. Formasi SBL dan Formasi HSP ..................................................... 9
2.1.2.2. Diorit CGG ................................................................................... 10
2.1.2.3. Andesit RSM ................................................................................ 10
2.1.2.4. Andesit LKT ................................................................................. 11
2.1.2.5. Andesit KLG ................................................................................ 11
2.1.2.6. Andesit TG ....................................................................................11
2.1.2.7. Andesit HL ................................................................................... 12
2.1.2.8. Tuff PBS ....................................................................................... 12
2.1.2.9. Andesit LMT ................................................................................ 12
ix
x
2.1.2.10. Obsidian PBR ............................................................................... 13
2.1.3. Struktur Geologi Regional ................................................................... 13
2.1.4. Struktur Geologi Daerah Penelitian ..................................................... 15
2.1.5. Sejarah Geologi Regional .................................................................... 16
2.2 Teori Dasar ..................................................................................................... 17
2.2.1
Sistem Panasbumi .................................................................................19
2.2.1.1. Hot Sedimentary Aquifer............................................................... 19
2.2.1.2. Enhance Geothermal System......................................................... 20
2.2.1.3. Conventional Geothermal System ................................................ 21
2.2.2
Manifestasi Panas Bumi ...................................................................... 23
2.2.3
Gradien Geotermal .............................................................................. 26
2.2.4
Eksplorasi Panasbumi .......................................................................... 27
2.2.3.1
Analisis Geologi ......................................................................... 27
2.2.3.2
Analisis Geokimia ...................................................................... 30
2.2.3.3
Analisis Geofisika ...................................................................... 36
BAB III METODE PENELITIAN ....................................................................... 44
3.1 Objek Penelitian ............................................................................................ 44
3.2 Alat – alat yang digunakan ............................................................................ 44
3.2.1
Pengolahan Data Geologi .................................................................... 44
3.2.2
Pengolahan Data Geokimia.................................................................. 45
3.2.3
Pengolahan Data Geofisika ................................................................. 45
3.3 Tahap Penelitian ............................................................................................ 46
3.3.1
Tahap Persiapan ................................................................................... 46
3.3.2
Tahap Pengumpulan Data .................................................................... 48
3.3.3
Tahap Pengolahan Data ....................................................................... 48
3.3.4
Tahap Analisa Data ............................................................................. 58
3.3.5
Tahap Penyusunan Laporan ................................................................. 59
BAB IV HASIL DAN PEMBAHASAN ............................................................. 61
4.1 Geologi Daerah Penelitian ............................................................................. 61
4.2 Geokimia Daerah Penelitian .......................................................................... 73
4.3 Geofisika Daerah Penelitian ........................................................................... 84
xi
4.4 Model Panas Bumi Daerah Penelitian .......................................................... 107
4.5 Zona Prospek dan Target Lokasi Sumur Produksi ....................................... 109
BAB V KESIMPULAN DAN SARAN ............................................................. 114
5.1 Kesimpulan .................................................................................................. 114
5.2 Saran ............................................................................................................ 116
DAFTAR PUSTAKA ........................................................................................ 117
LAMPIRAN ....................................................................................................... 119
Halaman
KATA PENGANTAR ........................................................................................... v
SARI .................................................................................................................... vii
ABSTRACT ........................................................................................................ viii
DAFTAR ISI ......................................................................................................... ix
DAFTAR GAMBAR ............................................................................................xii
DAFTAR TABEL................................................................................................. xv
DAFTAR LAMPIRAN ....................................................................................... xvi
BAB I PENDAHULUAN....................................................................................... 1
1.1 Latar Belakang Penelitian .................................................................................1
1.2 Batasan dan Identifikasi Masalah ..................................................................... 3
1.3 Maksud dan Tujuan Penelitian ......................................................................... 4
1.4 Manfaat Penelitian ........................................................................................... 4
1.5 Kerangka Pemikiran ......................................................................................... 4
1.6 Lokasi dan Waktu Penelitian ........................................................................... 6
BAB II TINJAUAN PUSTAKA ............................................................................ 7
2.1 Geologi Regional Daerah Penelitian ................................................................ 7
2.1.1. Geomorfologi / Fisiografi ...................................................................... 7
2.1.2. Stratigrafi Daerah Penelitian ................................................................. 8
2.1.2.1. Formasi SBL dan Formasi HSP ..................................................... 9
2.1.2.2. Diorit CGG ................................................................................... 10
2.1.2.3. Andesit RSM ................................................................................ 10
2.1.2.4. Andesit LKT ................................................................................. 11
2.1.2.5. Andesit KLG ................................................................................ 11
2.1.2.6. Andesit TG ....................................................................................11
2.1.2.7. Andesit HL ................................................................................... 12
2.1.2.8. Tuff PBS ....................................................................................... 12
2.1.2.9. Andesit LMT ................................................................................ 12
ix
x
2.1.2.10. Obsidian PBR ............................................................................... 13
2.1.3. Struktur Geologi Regional ................................................................... 13
2.1.4. Struktur Geologi Daerah Penelitian ..................................................... 15
2.1.5. Sejarah Geologi Regional .................................................................... 16
2.2 Teori Dasar ..................................................................................................... 17
2.2.1
Sistem Panasbumi .................................................................................19
2.2.1.1. Hot Sedimentary Aquifer............................................................... 19
2.2.1.2. Enhance Geothermal System......................................................... 20
2.2.1.3. Conventional Geothermal System ................................................ 21
2.2.2
Manifestasi Panas Bumi ...................................................................... 23
2.2.3
Gradien Geotermal .............................................................................. 26
2.2.4
Eksplorasi Panasbumi .......................................................................... 27
2.2.3.1
Analisis Geologi ......................................................................... 27
2.2.3.2
Analisis Geokimia ...................................................................... 30
2.2.3.3
Analisis Geofisika ...................................................................... 36
BAB III METODE PENELITIAN ....................................................................... 44
3.1 Objek Penelitian ............................................................................................ 44
3.2 Alat – alat yang digunakan ............................................................................ 44
3.2.1
Pengolahan Data Geologi .................................................................... 44
3.2.2
Pengolahan Data Geokimia.................................................................. 45
3.2.3
Pengolahan Data Geofisika ................................................................. 45
3.3 Tahap Penelitian ............................................................................................ 46
3.3.1
Tahap Persiapan ................................................................................... 46
3.3.2
Tahap Pengumpulan Data .................................................................... 48
3.3.3
Tahap Pengolahan Data ....................................................................... 48
3.3.4
Tahap Analisa Data ............................................................................. 58
3.3.5
Tahap Penyusunan Laporan ................................................................. 59
BAB IV HASIL DAN PEMBAHASAN ............................................................. 61
4.1 Geologi Daerah Penelitian ............................................................................. 61
4.2 Geokimia Daerah Penelitian .......................................................................... 73
4.3 Geofisika Daerah Penelitian ........................................................................... 84
xi
4.4 Model Panas Bumi Daerah Penelitian .......................................................... 107
4.5 Zona Prospek dan Target Lokasi Sumur Produksi ....................................... 109
BAB V KESIMPULAN DAN SARAN ............................................................. 114
5.1 Kesimpulan .................................................................................................. 114
5.2 Saran ............................................................................................................ 116
DAFTAR PUSTAKA ........................................................................................ 117
LAMPIRAN ....................................................................................................... 119