ANALISIS PENYEBARAN SANDSTONES DAN FLUIDA HIDROKARBON MENGGUNAKAN INVERSI EXTENDED ELASTIC IMPEDANCE (EEI) PADA LAPISAN “H” FORMASI CIBULAKAN DI LAPANGAN “X”, CEKUNGAN JAWA BARAT UTARA

Authors

  • Wiwit Reflidawati Jurusan Fisika FMIPA Universitas Andalas
  • Dwi Pujiastuti Jurusan Fisika FMIPA Universitas Andalas
  • Daz Edwiza Jurusan Teknik Sipil Fakultas Teknik Universitas Andalas
  • Dimas Pramudito PT. Pertamina EP ASSET 3 Cirebon

DOI:

https://doi.org/10.25077/jfu.4.3.%25p.2015

Abstract

ABSTRAK

Telah dilakukan penelitian menggunakan inversi Extended Elastis Impedance (EEI) untuk melihat parameter yang dapat memisahkan sandstones dan fluida hidrokarbon, serta bagaimana penyebarannya. Hasil analisis sensitivitas menunjukkan bahwa parameter yang sensitif untuk penyebaran sandstones adalah gamma ray, sedangkan parameter yang sensitif untuk penyebaran fluida hidrokarbon adalah lambdharho. Dari hasil crossplot diperoleh koefisien korelasi tertinggi untuk gamma ray adalah 0,772 yang ekuivalen dengan sudut EEI 60. Koefisien korelasi tertinggi untuk dengan nilai 0,934  diperoleh dari sudut EEI 22 yang ekuivalen dengan lambdharho. Hasil inversi EEI dengan sudut 60 diketahui bahwa penyebaran sandstones banyak terdapat pada bagian barat daya dari sumur penelitian. Sedangkan penyebaran fluida hidrokarbon banyak terdapat pada bagian selatan sumur penelitian yang diperoleh dari hasil inversi sudut EEI 22.

Kata kunci : Extended Elastis Impedance (EEI), gamma ray, Lambdharho, sandstones, fluida  hidrokarbon

Abstract

Research has been done using the Extended Elastic Impedance (EEI) inversion to view the parameters that could separate sandstones and fluid hydrocarbons, as well how it spreads. The sensitivity analysis shows that the sensitive parameters to the spread of sandstones are gamma ray, while a sensitive parameter for the spread of  hydrocarbon fluid is lambdharho. From the results obtained crossplot highest correlation coefficient for gamma ray is 0.772 which is equivalent to the angle EEI 60. The highest correlation coefficient with a value of 0.934 obtained from EEI corner 22 which is equivalent to lambdharho. EEI inversion results with an angle of 60 known that the spread sandstones numerous in the southwestern part of the research wells. While the spread of many hydrocarbon fluid contained in the southern part of the research wells obtained from the inversion angle EEI 22.

Keywords: Extended Elastic Impedance (EEI), gamma ray, Lambdharho, sandstones, hydrocarbon fluid

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Published

2024-10-26

How to Cite

Reflidawati, W., Pujiastuti, D., Edwiza, D., & Pramudito, D. (2024). ANALISIS PENYEBARAN SANDSTONES DAN FLUIDA HIDROKARBON MENGGUNAKAN INVERSI EXTENDED ELASTIC IMPEDANCE (EEI) PADA LAPISAN “H” FORMASI CIBULAKAN DI LAPANGAN “X”, CEKUNGAN JAWA BARAT UTARA. Jurnal Fisika Unand, 4(3). https://doi.org/10.25077/jfu.4.3.%p.2015

Issue

Vol. 4 No. 3: Juli 2015

Section

Articles

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Copyright (c) 2024 Wiwit Reflidawati, Dwi Pujiastuti, Daz Edwiza, Dimas Pramudito

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