Aplikasi dekomposisi spektral dan atribut seismik untuk menentukan penyebaran reservoar batupasir talang akar daerah "handayani" Sumatera Selatan = Spectral decomposition and seismic attribute application to determine talang akar sandstone reservoir at "handayani" area South Sumatra
| Main Author: | Ivan Nugraha, author |
|---|---|
| Format: | Masters Thesis |
| Terbitan: |
, 2015
|
| Subjects: | |
| Online Access: |
http://lib.ui.ac.id/file?file=digital/2016-2/20415051-T44078-Ivan Nugraha.pdf |
| ctrlnum |
20415051 |
|---|---|
| fullrecord |
<?xml version="1.0"?>
<dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title>Aplikasi dekomposisi spektral dan atribut seismik untuk menentukan penyebaran reservoar batupasir talang akar daerah "handayani" Sumatera Selatan = Spectral decomposition and seismic attribute application to determine talang akar sandstone reservoir at "handayani" area South Sumatra</title><creator>Ivan Nugraha, author</creator><type>Thesis:Masters</type><place/><publisher/><date>2015</date><description>[<b>ABSTRAK</b><br>
Daerah “Handayani” berada di Cekungan Sumatera Selatan dengan salah satu
reservoar hidrokarbon adalah batupasir Formasi Talang Akar dengan ketebalan antara 8-
20 meter yang berada dibawah ketebalan tuning seismik. Pada beberapa sumur di daerah
penelitian, Formasi Talang Akar yang memiliki litologi batupasir telah terbukti produktif
berisi hidrokarbon. Berdasarkan analisa plot uji silang pada beberapa sumur, parameter
P-Impedance dan Gamma Ray tidak dapat digunakan untuk memisahkan lithologi batu
pasir dan batu lempung daerah penelitian. Dekomposisi Spektral dilakukan dengan
metode Constant Bandwidth (FFT) dan Constant Q (CWT). Analisa frekuensi dilakukan
pada rentang frekuensi antara 10-40 Hz dimana kedua metode ini menghasilkan
anomali low frequency shadow zone pada frekuensi 15Hz. Anomali disebabkan oleh
adanya efek tuning pada lapisan tipis Talang Akar. Perhitungan gradien frekuensi dilakukan
pada hasil dekomposisi spektral Constant Q (CWT) untuk mendapatkan gambaran
penyebaran reservoar batupasir Talang Akar. Hasil gradien frekuensi dapat
digunakan untuk melakukan estimasi ketebalan batupasir Talang Akar setelah dilakukan
crossplot dengan net thickness pada sumur dengan angka korelasi 0.54. Penyebaran batupasir
Talang Akar berada di daerah Selatan dan tenggara daerah penelitian.
<hr>
<b>ABSTRACT</b><br>
“Handayani” area situated at South Sumatera Basin and below tuning
thickness Talang Akar Formation sandstone reservoar as study objective. TAF
sandstone reservoir in several wells within study area were proven as hydrocarbon
producer wells. Based on cross plot analysis on several wells, P-Impedance and
Gamma Ray parameter are not working in order to separate sandstone and shale lithology
within study area. Constant Bandwidth (FFT) and Constant Q (CWT)
were conducted as spectral decomposition method. Frequency analysis were conducted
at frequency range between 10-40 Hz which both method were showing low
frequency shadow zone anomaly at 15Hz frequency. This anomaly occurred from
Talang Akar thin bed layer as tuning effect. Talang Akar thickness estimation has
been conducted using frequency gradien approach from Constant Q (CWT) spectral
decomposition results and bring fair correlation with net sand thickness of
0.54. Talang Akar sandstone reservoar distributed along south and southeastern
flank of Handayani area.;“Handayani” area situated at South Sumatera Basin and below tuning
thickness Talang Akar Formation sandstone reservoar as study objective. TAF
sandstone reservoir in several wells within study area were proven as hydrocarbon
producer wells. Based on cross plot analysis on several wells, P-Impedance and
Gamma Ray parameter are not working in order to separate sandstone and shale lithology
within study area. Constant Bandwidth (FFT) and Constant Q (CWT)
were conducted as spectral decomposition method. Frequency analysis were conducted
at frequency range between 10-40 Hz which both method were showing low
frequency shadow zone anomaly at 15Hz frequency. This anomaly occurred from
Talang Akar thin bed layer as tuning effect. Talang Akar thickness estimation has
been conducted using frequency gradien approach from Constant Q (CWT) spectral
decomposition results and bring fair correlation with net sand thickness of
0.54. Talang Akar sandstone reservoar distributed along south and southeastern
flank of Handayani area., “Handayani” area situated at South Sumatera Basin and below tuning
thickness Talang Akar Formation sandstone reservoar as study objective. TAF
sandstone reservoir in several wells within study area were proven as hydrocarbon
producer wells. Based on cross plot analysis on several wells, P-Impedance and
Gamma Ray parameter are not working in order to separate sandstone and shale lithology
within study area. Constant Bandwidth (FFT) and Constant Q (CWT)
were conducted as spectral decomposition method. Frequency analysis were conducted
at frequency range between 10-40 Hz which both method were showing low
frequency shadow zone anomaly at 15Hz frequency. This anomaly occurred from
Talang Akar thin bed layer as tuning effect. Talang Akar thickness estimation has
been conducted using frequency gradien approach from Constant Q (CWT) spectral
decomposition results and bring fair correlation with net sand thickness of
0.54. Talang Akar sandstone reservoar distributed along south and southeastern
flank of Handayani area.]</description><subject>Spectral Decomposition</subject><subject>Frequency Gradient</subject><subject>Seismic Attribute</subject><subject>Low Frequency zone</subject><identifier>20415051</identifier><source>http://lib.ui.ac.id/file?file=digital/2016-2/20415051-T44078-Ivan Nugraha.pdf</source><recordID>20415051</recordID></dc>
|
| format |
Thesis:Masters Thesis Thesis:Thesis |
| author |
Ivan Nugraha, author |
| title |
Aplikasi dekomposisi spektral dan atribut seismik untuk menentukan penyebaran reservoar batupasir talang akar daerah "handayani" Sumatera Selatan = Spectral decomposition and seismic attribute application to determine talang akar sandstone reservoir at "handayani" area South Sumatra |
| publishDate |
2015 |
| topic |
Spectral Decomposition Frequency Gradient Seismic Attribute Low Frequency zone |
| url |
http://lib.ui.ac.id/file?file=digital/2016-2/20415051-T44078-Ivan Nugraha.pdf |
| contents |
[<b>ABSTRAK</b><br>
Daerah “Handayani” berada di Cekungan Sumatera Selatan dengan salah satu
reservoar hidrokarbon adalah batupasir Formasi Talang Akar dengan ketebalan antara 8-
20 meter yang berada dibawah ketebalan tuning seismik. Pada beberapa sumur di daerah
penelitian, Formasi Talang Akar yang memiliki litologi batupasir telah terbukti produktif
berisi hidrokarbon. Berdasarkan analisa plot uji silang pada beberapa sumur, parameter
P-Impedance dan Gamma Ray tidak dapat digunakan untuk memisahkan lithologi batu
pasir dan batu lempung daerah penelitian. Dekomposisi Spektral dilakukan dengan
metode Constant Bandwidth (FFT) dan Constant Q (CWT). Analisa frekuensi dilakukan
pada rentang frekuensi antara 10-40 Hz dimana kedua metode ini menghasilkan
anomali low frequency shadow zone pada frekuensi 15Hz. Anomali disebabkan oleh
adanya efek tuning pada lapisan tipis Talang Akar. Perhitungan gradien frekuensi dilakukan
pada hasil dekomposisi spektral Constant Q (CWT) untuk mendapatkan gambaran
penyebaran reservoar batupasir Talang Akar. Hasil gradien frekuensi dapat
digunakan untuk melakukan estimasi ketebalan batupasir Talang Akar setelah dilakukan
crossplot dengan net thickness pada sumur dengan angka korelasi 0.54. Penyebaran batupasir
Talang Akar berada di daerah Selatan dan tenggara daerah penelitian.
<hr>
<b>ABSTRACT</b><br>
“Handayani” area situated at South Sumatera Basin and below tuning
thickness Talang Akar Formation sandstone reservoar as study objective. TAF
sandstone reservoir in several wells within study area were proven as hydrocarbon
producer wells. Based on cross plot analysis on several wells, P-Impedance and
Gamma Ray parameter are not working in order to separate sandstone and shale lithology
within study area. Constant Bandwidth (FFT) and Constant Q (CWT)
were conducted as spectral decomposition method. Frequency analysis were conducted
at frequency range between 10-40 Hz which both method were showing low
frequency shadow zone anomaly at 15Hz frequency. This anomaly occurred from
Talang Akar thin bed layer as tuning effect. Talang Akar thickness estimation has
been conducted using frequency gradien approach from Constant Q (CWT) spectral
decomposition results and bring fair correlation with net sand thickness of
0.54. Talang Akar sandstone reservoar distributed along south and southeastern
flank of Handayani area.;“Handayani” area situated at South Sumatera Basin and below tuning
thickness Talang Akar Formation sandstone reservoar as study objective. TAF
sandstone reservoir in several wells within study area were proven as hydrocarbon
producer wells. Based on cross plot analysis on several wells, P-Impedance and
Gamma Ray parameter are not working in order to separate sandstone and shale lithology
within study area. Constant Bandwidth (FFT) and Constant Q (CWT)
were conducted as spectral decomposition method. Frequency analysis were conducted
at frequency range between 10-40 Hz which both method were showing low
frequency shadow zone anomaly at 15Hz frequency. This anomaly occurred from
Talang Akar thin bed layer as tuning effect. Talang Akar thickness estimation has
been conducted using frequency gradien approach from Constant Q (CWT) spectral
decomposition results and bring fair correlation with net sand thickness of
0.54. Talang Akar sandstone reservoar distributed along south and southeastern
flank of Handayani area., “Handayani” area situated at South Sumatera Basin and below tuning
thickness Talang Akar Formation sandstone reservoar as study objective. TAF
sandstone reservoir in several wells within study area were proven as hydrocarbon
producer wells. Based on cross plot analysis on several wells, P-Impedance and
Gamma Ray parameter are not working in order to separate sandstone and shale lithology
within study area. Constant Bandwidth (FFT) and Constant Q (CWT)
were conducted as spectral decomposition method. Frequency analysis were conducted
at frequency range between 10-40 Hz which both method were showing low
frequency shadow zone anomaly at 15Hz frequency. This anomaly occurred from
Talang Akar thin bed layer as tuning effect. Talang Akar thickness estimation has
been conducted using frequency gradien approach from Constant Q (CWT) spectral
decomposition results and bring fair correlation with net sand thickness of
0.54. Talang Akar sandstone reservoar distributed along south and southeastern
flank of Handayani area.] |
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