creators_name: Vina , Aviani Rosadi
creators_id: 2015051040
type: other
datestamp: 2025-02-17 07:38:27
lastmod: 2025-02-17 07:38:27
metadata_visibility: show
title: IDENTIFIKASI CEKUNGAN HIDROKARBON JAWA TIMUR BAGIAN
SELATAN BERDASARKAN ANALISIS DATA GAYABERAT
ispublished: pub
subjects: 620
full_text_status: restricted
abstract: Daerah Jawa Timur bagian selatan adalah salah satu daerah yang berpotensi
memiliki hidrokarbon dan belum tereksplorasi. Dimana menurut Hasan dan
Nurdwiyanto (2008) daerah cekungan Jawa Timur memiliki ketebalan sedimen
tersier mencaai 5000 m. Tujuan dilakukannya penelitian ini yaitu untuk
mendapatkan pola sub-cekungan berdasarkan analisis derivatif, pola migrasi dan
pemodelan 3D densitas bawah permukaan. Data yang digunakan merupaka data
Anomali Bouguer Lengkap hasil digitasi dari Pusat Survei Geologi (PSG). Analisis
data dilakukan menggunakan alisis spektrum untuk pemisahan anomali regional
dan residual serta mengestimasi kedalaman anomali untuk mendapatkan lebar

jendela yang digunakan dalam proses filtering filter moving average. Pola sub-
cekungan diidentifikasi berdasarkan hasil pola migrasi pada peta anomali residual.

Pemodelan 3D densitas bawah permukan dilakukan menggunakan software
Grav3D yang dikorelasikan dengan analsis Second Vertical Derivative (SVD)
untuk mendapatkan pola sub-cekungan hidrokarbon. Berdasarkan hasil analisis
data gayaberat Terdapat 3 sub cekungan besar yaitu sub-cekungan A, sub-cekungan
B, dan sub-cekungan C. Sub-cekungan terbesar terdapat pada sub-cekungan A dan
sub-cekungan B yang mencakup wilayah Madiun, Nganjuk, Kediri, dan Ponorogo.

Kata Kunci : Gayaberat, Anomali Bouguer, Sub-Cekungan

iv

ABSTRACT

IDENTIFICATION OF THE SOUTHERN EAST JAVA HYDROCARBON

BASIN BASED ON ANALYSIS OF GRAVITY DATA

by

Vina Aviani Rosadi

The southern part of East Java is one of the areas that has the potential to have
hydrocarbons and has not been explored. Where according to Hasan and
Nurdwiyanto (2008) the East Java basin area has a thickness of tertiary sediment
reaching 5000 m. The aim of this research is to obtain sub-basin patterns based on
derivative analysis, migration patterns and 3D modeling of subsurface density. The
data used is complete Bouguer Anomaly data digitized from the Geological Survey
Center (PSG). Data analysis was carried out using spectrum analysis to separate
regional and residual anomalies and estimating the depth of the anomaly to obtain
the window width used in the moving average filtering process. Sub-basin patterns
are identified based on the results of migration patterns on residual anomaly maps.
3D subsurface density modeling was carried out using Grav3D software which was
correlated with Second Vertical Derivative (SVD) analysis to obtain hydrocarbon
sub-basin patterns. Based on the results of gravity data analysis, there are 3 large

sub-basins, namely sub-basin A, sub-basin B, and sub-basin C. The largest sub-
basins are in sub-basin A and sub-basin B which cover the Madiun, Nganjuk, Kediri

areas , and Ponorogo.

Keywords: Gravity, Bouguer Anomaly, Sub-Basin
date: 2024-06-14
date_type: published
publisher: FAKULTAS TEKNIK
place_of_pub: UNIVERSITAS LAMPUNG
citation:   Vina , Aviani Rosadi  (2024) IDENTIFIKASI CEKUNGAN HIDROKARBON JAWA TIMUR BAGIAN SELATAN BERDASARKAN ANALISIS DATA GAYABERAT.  FAKULTAS TEKNIK, UNIVERSITAS LAMPUNG.     
document_url: http://digilib.unila.ac.id/84080/1/ABSTRAK_Vina%20Aviani%20Rosadi-3-4%20-%20Vina%20Aviani%20Rosadi.pdf
document_url: http://digilib.unila.ac.id/84080/2/SKRIPSI%20TANPA%20LAMPIRAN_Vina%20Aviani%20Rosadi%20-%20Vina%20Aviani%20Rosadi.pdf
document_url: http://digilib.unila.ac.id/84080/3/SKRIPSI%20TANPA%20PEMBAHASAN_Vina%20Aviani%20Rosadi%20-%20Vina%20Aviani%20Rosadi.pdf