SIKUEN STRATIGRAFI DALAM PENENTUAN PROSPEK DAN PENYEBARAN RESERVOIR BERDASARKAN DATA LOD DAN CUTTING DI LAPANGAN.
DAFTAR ISI
KATA PENGANTAR ............................................................................................
i
SARI ........................................................................................................................
iii
ABSTRAK................................................................................................................
iv
DAFTAR ISI ...........................................................................................................
v
DAFTAR GAMBAR ..............................................................................................
x
BAB I. PENDAHULUAN .....................................................................................
1
1.1 Latar Belakang .......................................................................................
1
1.2 Perumusan Masalah ...............................................................................
2
1.3 Maksud dan Tujuan ................................................................................
3
1.4 Waktu dan Tempat Penelitian ................................................................
3
1.5 Manfaat Penelitian .................................................................................
4
BAB II. TINJAUAN PUSTAKA..........................................................................
6
2.1 Geologi Regional Cekungan Jawa Barat Utara ....................................
6
2.2 Stratigrafi Regional Cekungan Jawa Barat Utara .................................
7
2.2.1 Batuan Dasar................................................................................
7
2.2.2 Formasi Jatibarang .......................................................................
8
2.2.3 Formasi Talang Akar ...................................................................
8
2.2.4 Formasi Baturaja..........................................................................
9
2.2.5 Formasi Cibulakan Atas ..............................................................
9
2.2.6 Formasi Parigi..............................................................................
11
v
2.2.7 Formasi Cisubuh ..........................................................................
11
2.3 Stratigrafi Regional Daerah Telitian ....................................................
12
2.3.1 Formasi Jatibarang Batuan Vulkanik Eosen-Oligosen ................
13
2.3.2 Formasi Talang Akar Kala Oligosen-Miosen Awal ....................
13
2.3.3 Formasi Baturaja Miosen Awal-Miosen Tengah.........................
14
2.3.4 Formasi Cibulakan Atas Miosen Tengah-Miosen .......................
14
2.4 Petroleum System Cekungan Jawa Barat Utara ...................................
15
2.4.1 Btuan Induk (Source Rock)..........................................................
16
2.4.2 Batuan Reservoir .........................................................................
17
2.4.3 Tipe Cebakan (Trap) ...................................................................
18
2.4.4 Jalur Migrasi (Migration Pathways)............................................
18
2.4.5 Lapisan Penutup (Seal Rock) .......................................................
19
2.5 Wireline Log ........................................................................................
19
2.6 Sikuen Stratigrafi ................................................................................
23
2.6.1 Parameter Pengontrol Utama Pola Sedimentasi ..........................
24
2.6.2 Pola-Pola Stratigrafi dan Sedimentasi .........................................
25
2.6.3 Regresi dan Transgresi ................................................................
26
2.6.4 Siklus Sedimentasi.......................................................................
26
2.6.5 System Tract ................................................................................
32
2.6.6 Key Stratigraphic Surfaces Dalam Analisis Sikuen ....................
36
2.7 Lingkungan Pengendapan ...................................................................
38
2.7.1 Lingkungan Pengendapan Delta ..................................................
39
2.7.2 Klasifikasi Delta ..........................................................................
40
vi
2.7.3 Lingkungan Pengendapan Shallow Marine .................................
43
2.8 Konsep Korelasi ..................................................................................
45
BAB III. METODOLOGI PENELITIAN ..........................................................
48
3.1 Metode Penelitian................................................................................
48
3.1.1 Metode Well Loging ....................................................................
48
3.1.2 Aplikasi Sikuen Stratigrafi Untuk Data Well Log .......................
49
3.3.3 Evaluasi Data Wireline Log .........................................................
50
3.2 Peralatan dan Data...............................................................................
51
3.3 Tahap Penelitian ..................................................................................
52
3.3.1 Tahap Persiapan ...........................................................................
52
3.3.2 Studi Pustaka ...............................................................................
52
3.3.3 Pengumpulan Data .......................................................................
52
3.4 Tahap Analisis dan Interpretasi Data ..................................................
53
3.5 Data Primer .........................................................................................
54
3.5.1 Data Log ......................................................................................
54
3.6 Data Sekunder .....................................................................................
55
3.6.1 Data Cutting ................................................................................
55
3.7 Penyusunan Laporan ...........................................................................
55
BAB IV. HASIL DAN PEMBAHASAN .............................................................
57
4.1 Data Sumur .........................................................................................
57
4.2 Interpretasi Litologi Sumur Telitian Lapangan CINDE .....................
58
vii
4.3 Analisa Facies Sumur Telitian Lapangan CINDE ..............................
58
4.4 Interpretasi Lingkungan Pengendapan Sumur Telitian Lapangan
CINDE ...............................................................................................
58
4.5 Analisa Sikuen Stratigrafi Sumur Telitian Lapangan CINDE ............
60
4.6 Interpretasi Litologi Sumur FU-01 .....................................................
62
4.6.1 Interpretasi Facies Sumur FU-01 .................................................
64
4.6.2 Interpretasi Lingkungan Pengendapan Sumur FU-01 .................
65
4.6.3 Analisa Sikuen Stratigrafi Sumur FU-01.....................................
65
4.7 Interpretasi Litologi Sumur FU-02 .....................................................
68
4.7.1 Interpretasi Facies Sumur FU-02 .................................................
69
4.7.2 Interpretasi Lingkungan Pengendapan Sumur FU-02 .................
70
4.7.3 Analisa Sikuen Stratigrafi Sumur FU-02.....................................
71
4.8 Interpretasi Litologi Sumur FU-04 .....................................................
74
4.8.1 Interpretasi Facies Sumur FU-04 .................................................
75
4.8.2 Interpretasi Lingkungan Pengendapan Sumur FU-04 .................
76
4.8.3 Analisa Sikuen Stratigrafi Sumur FU-04.....................................
76
4.9 Interpretasi Litologi Sumur FU-05 .....................................................
79
4.9.1 Interpretasi Facies Sumur FU-05 .................................................
80
4.9.2 Interpretasi Lingkungan Pengendapan Sumur FU-05 .................
82
4.9.3 Analisa Sikuen Stratigrafi Sumur FU-05.....................................
82
4.9.4 Korelasi ........................................................................................
83
4.9.5 Penampang Korelasi Struktur ......................................................
84
viii
BAB V. KESIMPULAN DAN SARAN ...............................................................
87
5.1 Kesimpulan .........................................................................................
87
5.2 Saran ....................................................................................................
88
DAFTAR PUSTAKA .............................................................................................
89
LAMPIRAN ............................................................................................................
90
ix
DAFTAR GAMBAR
Gambar 1.1 Peta Lokasi Lapangan CINDE ............................................................
4
Gambar 2.1 Geologi Regional Cekungan Jawa Barat Utara (Hapsari, 2004) .........
7
Gambar 2.2 Kolom Stratigrafi Cekungan Jawa Barat Utara (Pertamina, 1994) .....
12
Gambar 2.3 Petroleum System (www.earthscienceword.org) ................................
15
Gambar 2.4 Model Pengendapan Sikuen yang Terbentuk di Cekungan dengan
Shelf Break (Van Wagoner, elal, 1990) ..............................................
29
Gambar 3.1 Diagram Alir Penelitian ......................................................................
56
Gambar 4.1 Basemap Geoframe 44, Lintasan Sumur FU-04, FU-02, FU-01, FU05 Sumur Lapangan CINDE ...............................................................
57
Gambar 4.2 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-01 .......................................................................................
61
Gambar 4.3 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-02 .......................................................................................
67
Gambar 4.4 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-04 .......................................................................................
73
Gambar 4.5 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-05 .......................................................................................
78
Gambar 4.6 Korelasi Struktur Sumur FU-04, FU-02, FU-01, FU-05 .....................
86
x
KATA PENGANTAR ............................................................................................
i
SARI ........................................................................................................................
iii
ABSTRAK................................................................................................................
iv
DAFTAR ISI ...........................................................................................................
v
DAFTAR GAMBAR ..............................................................................................
x
BAB I. PENDAHULUAN .....................................................................................
1
1.1 Latar Belakang .......................................................................................
1
1.2 Perumusan Masalah ...............................................................................
2
1.3 Maksud dan Tujuan ................................................................................
3
1.4 Waktu dan Tempat Penelitian ................................................................
3
1.5 Manfaat Penelitian .................................................................................
4
BAB II. TINJAUAN PUSTAKA..........................................................................
6
2.1 Geologi Regional Cekungan Jawa Barat Utara ....................................
6
2.2 Stratigrafi Regional Cekungan Jawa Barat Utara .................................
7
2.2.1 Batuan Dasar................................................................................
7
2.2.2 Formasi Jatibarang .......................................................................
8
2.2.3 Formasi Talang Akar ...................................................................
8
2.2.4 Formasi Baturaja..........................................................................
9
2.2.5 Formasi Cibulakan Atas ..............................................................
9
2.2.6 Formasi Parigi..............................................................................
11
v
2.2.7 Formasi Cisubuh ..........................................................................
11
2.3 Stratigrafi Regional Daerah Telitian ....................................................
12
2.3.1 Formasi Jatibarang Batuan Vulkanik Eosen-Oligosen ................
13
2.3.2 Formasi Talang Akar Kala Oligosen-Miosen Awal ....................
13
2.3.3 Formasi Baturaja Miosen Awal-Miosen Tengah.........................
14
2.3.4 Formasi Cibulakan Atas Miosen Tengah-Miosen .......................
14
2.4 Petroleum System Cekungan Jawa Barat Utara ...................................
15
2.4.1 Btuan Induk (Source Rock)..........................................................
16
2.4.2 Batuan Reservoir .........................................................................
17
2.4.3 Tipe Cebakan (Trap) ...................................................................
18
2.4.4 Jalur Migrasi (Migration Pathways)............................................
18
2.4.5 Lapisan Penutup (Seal Rock) .......................................................
19
2.5 Wireline Log ........................................................................................
19
2.6 Sikuen Stratigrafi ................................................................................
23
2.6.1 Parameter Pengontrol Utama Pola Sedimentasi ..........................
24
2.6.2 Pola-Pola Stratigrafi dan Sedimentasi .........................................
25
2.6.3 Regresi dan Transgresi ................................................................
26
2.6.4 Siklus Sedimentasi.......................................................................
26
2.6.5 System Tract ................................................................................
32
2.6.6 Key Stratigraphic Surfaces Dalam Analisis Sikuen ....................
36
2.7 Lingkungan Pengendapan ...................................................................
38
2.7.1 Lingkungan Pengendapan Delta ..................................................
39
2.7.2 Klasifikasi Delta ..........................................................................
40
vi
2.7.3 Lingkungan Pengendapan Shallow Marine .................................
43
2.8 Konsep Korelasi ..................................................................................
45
BAB III. METODOLOGI PENELITIAN ..........................................................
48
3.1 Metode Penelitian................................................................................
48
3.1.1 Metode Well Loging ....................................................................
48
3.1.2 Aplikasi Sikuen Stratigrafi Untuk Data Well Log .......................
49
3.3.3 Evaluasi Data Wireline Log .........................................................
50
3.2 Peralatan dan Data...............................................................................
51
3.3 Tahap Penelitian ..................................................................................
52
3.3.1 Tahap Persiapan ...........................................................................
52
3.3.2 Studi Pustaka ...............................................................................
52
3.3.3 Pengumpulan Data .......................................................................
52
3.4 Tahap Analisis dan Interpretasi Data ..................................................
53
3.5 Data Primer .........................................................................................
54
3.5.1 Data Log ......................................................................................
54
3.6 Data Sekunder .....................................................................................
55
3.6.1 Data Cutting ................................................................................
55
3.7 Penyusunan Laporan ...........................................................................
55
BAB IV. HASIL DAN PEMBAHASAN .............................................................
57
4.1 Data Sumur .........................................................................................
57
4.2 Interpretasi Litologi Sumur Telitian Lapangan CINDE .....................
58
vii
4.3 Analisa Facies Sumur Telitian Lapangan CINDE ..............................
58
4.4 Interpretasi Lingkungan Pengendapan Sumur Telitian Lapangan
CINDE ...............................................................................................
58
4.5 Analisa Sikuen Stratigrafi Sumur Telitian Lapangan CINDE ............
60
4.6 Interpretasi Litologi Sumur FU-01 .....................................................
62
4.6.1 Interpretasi Facies Sumur FU-01 .................................................
64
4.6.2 Interpretasi Lingkungan Pengendapan Sumur FU-01 .................
65
4.6.3 Analisa Sikuen Stratigrafi Sumur FU-01.....................................
65
4.7 Interpretasi Litologi Sumur FU-02 .....................................................
68
4.7.1 Interpretasi Facies Sumur FU-02 .................................................
69
4.7.2 Interpretasi Lingkungan Pengendapan Sumur FU-02 .................
70
4.7.3 Analisa Sikuen Stratigrafi Sumur FU-02.....................................
71
4.8 Interpretasi Litologi Sumur FU-04 .....................................................
74
4.8.1 Interpretasi Facies Sumur FU-04 .................................................
75
4.8.2 Interpretasi Lingkungan Pengendapan Sumur FU-04 .................
76
4.8.3 Analisa Sikuen Stratigrafi Sumur FU-04.....................................
76
4.9 Interpretasi Litologi Sumur FU-05 .....................................................
79
4.9.1 Interpretasi Facies Sumur FU-05 .................................................
80
4.9.2 Interpretasi Lingkungan Pengendapan Sumur FU-05 .................
82
4.9.3 Analisa Sikuen Stratigrafi Sumur FU-05.....................................
82
4.9.4 Korelasi ........................................................................................
83
4.9.5 Penampang Korelasi Struktur ......................................................
84
viii
BAB V. KESIMPULAN DAN SARAN ...............................................................
87
5.1 Kesimpulan .........................................................................................
87
5.2 Saran ....................................................................................................
88
DAFTAR PUSTAKA .............................................................................................
89
LAMPIRAN ............................................................................................................
90
ix
DAFTAR GAMBAR
Gambar 1.1 Peta Lokasi Lapangan CINDE ............................................................
4
Gambar 2.1 Geologi Regional Cekungan Jawa Barat Utara (Hapsari, 2004) .........
7
Gambar 2.2 Kolom Stratigrafi Cekungan Jawa Barat Utara (Pertamina, 1994) .....
12
Gambar 2.3 Petroleum System (www.earthscienceword.org) ................................
15
Gambar 2.4 Model Pengendapan Sikuen yang Terbentuk di Cekungan dengan
Shelf Break (Van Wagoner, elal, 1990) ..............................................
29
Gambar 3.1 Diagram Alir Penelitian ......................................................................
56
Gambar 4.1 Basemap Geoframe 44, Lintasan Sumur FU-04, FU-02, FU-01, FU05 Sumur Lapangan CINDE ...............................................................
57
Gambar 4.2 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-01 .......................................................................................
61
Gambar 4.3 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-02 .......................................................................................
67
Gambar 4.4 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-04 .......................................................................................
73
Gambar 4.5 Interpretasi Litologi, Lingkungan Pengendapan, System Tract, Pada
Sumur FU-05 .......................................................................................
78
Gambar 4.6 Korelasi Struktur Sumur FU-04, FU-02, FU-01, FU-05 .....................
86
x