Analisis Penyebaran Properti Reservoir pada Petrophysical Modeling di Lokasi ”X” Papua Barat dengan Metode Universal Kriging

Mohammad Hatta Rafsanjani, Heri Kuswanto, Sutikno Sutikno
Submission Date: 2012-07-25 10:30:21
Accepted Date: 2013-01-17 08:43:59

Abstract


Salah satu penelitian Upstream Technology Center (UTC) Direktorat hulu PT. Pertamina (Persero) adalah pada Lokasi "X" Papua Barat. Analisis Geologi pada penelitian di Lokasi "X" menerapkan metode Geostatistika pada petrophy-sical modelling. Penelitian ini mengaplikasikan metode Uni-versal Kriging pada Petrophysical Modelling. Metode ini dapat memberikan analisis yang baik secara geologi karena interpolasi properti reservoir primer dilakukan dengan memasukkan trend jenis batuan (facies) sebagai kontrol sehingga penyebaran yang dilakukan memiliki interpretasi yang kuat secara geologi. Pro-perti reservoir yang digunakan adalah porositas dan Net to Gross (NTG). Analisis semivariogram eksperimental dilakukan agar didapatkan semivariogram teoritis porositas dan NTG untuk masing-masing zona. Kesimpulan yang didapatkan adalah Zona 1A dan 1B merupakan target reservoir yang prospektif karena berdasarkan analisas statistika deskriptif dan univeral kriging didapatkan hasil penyebaran porositas dan NTG tertinggi daripada lokasi zona yang lainnya.


Keywords


NTG; Porositas; Semivariogram; Universal Kriging; Zona

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