PENILAIAN FORMASI
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PENILAIAN FORMASINEUTRON LOG
Jerry Manullang I Khalel I Mohamad Harist Sampurna I Rahmat Hidayat I
Tri Febri Ramadhan I Wildan Aditya Wardhani I Samuel Pangidoan P
Teknik Perminyakan (Reguler) B - 2011
4
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OutlineO Definisi O FungsiO Studi KasusO Proses Pengolahan DataO Perbandingan Hasil Pengolahan DataO Kesimpulan
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Definisi Neutron Log
Neutron log adalah suatu pencatatan/perekaman data yang dilakukan dengan menembakkan neutron untuk menentukan porositas absolut, atau menentukan rongga pori suatu formasi batuan yang mana diisi oleh fluida.
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FungsiO Untuk mengidentifikasi fluida di belakang casing
pemboran di reservoirO Menentukan letak kontak minyak / air, gas / air dan gas /
minyak bahkan di zona resistivitas yang rendah. Mencari hidrokarbon di bypass dengan matang bidang. Menganalisa kandungan hidrokarbon sebelum plug dan ditinggalkan.
O Mengevaluasi tempat batubara sebagai bersih atau kotor. Pembacaan Klorin tinggi berarti konten abu tinggi.
O Mengevaluasi coalbed methane.O Berpotensi menemukan besi, tembaga, dan unsur
mineral lainnya
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Studi KasusClue :Quartz sandstone formation, TNPH = 18 p.u. (apparent limestone neutron porosity), and formation salinity = 250,000 ppm.
Find : Porosity in sandstone.
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Proses Pengolahan DataO Proses Pengolahan Data ManualO Proses Pengolahan Data Dengan
Software
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Plot Manual
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Plot Software
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Perhitungan excel
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Perbandingan Hasil Pengolahan Data
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KesimpulanO Hasil perhitungan manual dengan
software memiliki selisih nilai yang cukup sedikit.
O Perhitungan menggunakan software diasumsikan lebih akurat.
O Faktor ketelitian sangat diperlukan.
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Thank You For The Attention