Karakterisasi Reservoar Hidrokarbon Mengunakan Metode Seismik Inversi Deterministik Model Based Pada Lapangan Penobscot Kanada

Authors

  • Aulia Latifah Laboratorium Fisika Bumi, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Dwi Pujiastuti Laboratorium Fisika Bumi, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas
  • Elistia Liza Namigo Laboratorium Fisika Bumi, Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.8.2.120-126.2019

Abstract

Telah dilakukan karakterisasi reservoar hidrokarbon pada Lapangan Penobscot Kanada mengunakan metode seismik inversi deterministik model based.  Penelitian ini mengunakan data seismik PSTM (post stack time migration) 3D pada inline 1300 sebagai data input dan data sumur L30 dan B41 sebagai data kontrol.  Karakterisasi reservoar dilakukan dengan melakukan analisis crossplot dan menentukan nilai impedansi akustik atau acoustic impedance (AI).  Analisis crossplot menunjukkan bahwa  log  gamma ray sensitif dalam pemisahan lapisan shale, sandstone, dan limestone. Penentuan zone of interest yang diindikasikan sebagai reservoar hidrokarbon dilakukan melalui analisis atribut dekomposisi spektral dengan frekuensi 10 Hz.  Hal tersebut menunjukkan dengan jelas kemenerusan pola penyebaran litologi yang diduga sebagai hidrokarbon dengan lebih mudah.  Hasil inversi deterministik model based menunjukkan bahwa pada inline 1300 terdapat potensi hidrokarbon melalui sebaran nilai impedansi akustik. Slicing yang dilakukan pada lapisan zone of interest menunjukkan hasil sebaran nilai impedansi akustik dengan rentang 13556-27501(m/s)*(g/cc).  Potensi reservoar hidrokarbon sandstone ditunjukkan melalui zona impedansi akustik pada nilai 20000-25461 (m/s)*(g/cc). 

Kata kunci: atribut dekomposisi spektral, impedansi akustik, inversi deterministik, model based, zone of interest

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Published

2019-04-01

How to Cite

Latifah, A., Pujiastuti, D., & Namigo, E. L. (2019). Karakterisasi Reservoar Hidrokarbon Mengunakan Metode Seismik Inversi Deterministik Model Based Pada Lapangan Penobscot Kanada. Jurnal Fisika Unand, 8(2), 120–126. https://doi.org/10.25077/jfu.8.2.120-126.2019

Issue

Vol. 8 No. 2 (2019)

Section

Articles

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Copyright (c) 2019 Aulia Latifah, Dwi Pujiastuti, Elistia Liza Namigo

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