INTERPRETASI RESERVOAR MENGGUNAKAN SEISMIK MULTIATRIBUT “LINEAR REGRESSION” PADA LAPANGAN “PAMS” FORMASI TALANGAKAR CEKUNGAN SUMATERA SELATAN

Tri Pamungkas, 111051035 (2015) INTERPRETASI RESERVOAR MENGGUNAKAN SEISMIK MULTIATRIBUT “LINEAR REGRESSION” PADA LAPANGAN “PAMS” FORMASI TALANGAKAR CEKUNGAN SUMATERA SELATAN. Fakultas Teknik, UNIVERSITAS LAMPUNG.

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ABSTRACT.pdf

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COVER DALAM.pdf

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MENGESAHKAN.pdf

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PERNYATAAN.pdf

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PERSEMBAHAN.pdf

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SANWACANA.pdf

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KATA PENGANTAR.pdf

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Abstrak

Metode seismik refleksi merupakan metode yang memanfaatkan penjalaran gelombang untuk memprediksi kondisi didalam bumi. Metode multiatribut linear regression merupakan metode yang menggunakan lebih dari satu atribut untuk memprediksi property fisik dari bumi. Dimana sifat fisik dari bumi yang diprediksi meliputi log gamma ray, log neutron porosity, log density, dan log pwave. Setiap log ini diprediksi menggunakan beberapa atribut seismik, dan diperoleh atribut frekuensi, atribut amplitudo, atribut waktu dan atribut fasa. Proses interpretasi yang dilakukan yaitu menggunakan data seimik 3D PSTM (pree stack time migration) dengan sampling rate 2 ms dan menggunakan data log, chekshot serta data marker sebagai pengontrol lapisan. Hal penting pertama yang dilakukan ialah proses pembuatan seismogram sintetik dengan melakukan proses well seimik tie yang berguna untuk pengikatan data sumur dengan data seimik. Interpretasi untuk mengetahui zona persebaran batu pasir yaitu dengan melakukan pemotongan sayatan slicing pada log target. Hasil slicing menunjukkan nilai gamma ray rendah yaitu 50-90 API. Nilai Density 2.2-2.39 g/cc. Nilai density dan gamma ray yang rendah menujukkan adanya sand pada lapangan pams. Nilai neutron porosity berkisar 15-19% dan nilai p-wave 2500- 4300 m/s. Nilai kedua log tersebut menandakan terakumulasinya hidrokarbon. Jadi dapat diidentifikasi sesuai dengan hasil slicing, persebaran batu pasir dari arah utara menuju barat laut. Pada zona marker S di formasi Talang Akar Cekungan Sumatera Selatan. Kata Kunci: Seismik refleksi, Seimik atribut, Multiatribut Linear Regression, gamma ray, density, neutron porosity, p-wave. INTERPRETATION OF RESERVOIR USED MULTIATRIBUTE SEISMIC “LINEAR REGRESSION” METHOD AT FIELD “PAMS” TALANGAKAR FORMATION OF SOUTH SUMATERA BASIN A method of seismic reflection is method who use spreading waves to predict the condition in the earth. A method of multiatribute linear regression is a method of using more than one attribute to predict property physical from the earth. Where the physical properties of the earth which is predicted covering logs gamma ray, logs neutrons porosity, logs density, and logging P-wave. Every logs is predicted to use some attribute seismic, and obtained attribute frequency, attribute amplitude, attribute time and attributes phase. The process of interpretation is using seimic data 3D PSTM (Pre Stack Time Migration) with sampling rate 2 ms and use log data, chekshot as well as data marker as control layers. The first important done is process of making seismogram synthetic with perform the process well seimic tie useful to binding well data with seimic data. Interpretation to know zone distribution sandstone by slaughter incision slicing on the target log. The results of slicing shows the low gamma ray with range value 50-90 API. Value density 2.2-2.39 g /cc. Value density and gamma ray that low suggests the sand on a pams.Value neutrons porosity range 15-19 % and value P-wave 2500- 4300 m/s. value second logs showed that accumulation hydrocarbon. So it can also be identified in accordance with the slicing result, distribution sandstone from the north toward the northwest. In marker zone S at Talangakar formation of South Sumatra basin. Keywords: Seismic Reflection, Seimic Attributes, Multiatribute Linear Regression, Gamma Ray, Density, Neutron Porosity, P-Wave

Jenis Karya Akhir: Skripsi
Subyek: > Teknologi (General)
> Teknologi (General)
Teknologi (General)

> Teknik Pertambangan. metalurgi
> Teknik Pertambangan. metalurgi
Program Studi: Fakultas Teknik > Prodi S1-Teknik Geofisika
Pengguna Deposit: 9599713 . Digilib
Date Deposited: 26 Jan 2016 03:05
Terakhir diubah: 26 Jan 2016 03:05
URI: http://digilib.unila.ac.id/id/eprint/20470

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