Aplikasi Inversi Seismik untuk Karakterisasi Reservoir lapangan “Y”, Cekungan Kutai, Kalimantan Timur

Satya Hermansyah Putri, Bagus Jaya Santosa
Submission Date: 2014-08-04 14:16:03
Accepted Date: 2014-09-14 11:50:41

Abstract


Karakterisasi reservoir di lapangan “Y” telah dilakukan dengan inversi seismik impedansi akustik. Metode inversi impedansi akustik dilakukan untuk memprediksi informasi sifat fisis bumi berdasarkan informasi rekaman seismik yang diperoleh. Pada penelitian ini digunakan empat buah sumur dan delapan buah lintasan seismik yang terletak pada area penelitian. Metode seismik inversi menghasilkan peta distribusi nilai impedansi akustik sedangkan ekstraksi atribut seismik menghasilkan peta distribusi nilai amplitudo. Model inisial dibuat sebanyak tiga buah sesuai dengan klasifikasi rentang nilai distribusi impedansi pada masing-masing sumur. Kombinasi peta sebaran densitas dan porositas menunjukkan area prospektif yang terletak di sebelah timur channel, dengan porositas yang relatif lebih tinggi. Dari hasil analisa crossplot menunjukkan bahwa penggunaan atribut impedansi akustik pada studi ini belum mampu memisahkan litologipada area penelitian.


Keywords


impedansi akustik; inversi; amplitudo; porositas; densitas;

References


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