Aplikasi Metode Inversi Impedansi Akustik dan Seismik Multiatribut untuk Karakterisasi Zona Reservoir Hidrokarbon pada Lapangan "CVN" - Cekungan Sumatera Tengah

Agfa, Cevin Ian (2018) Aplikasi Metode Inversi Impedansi Akustik dan Seismik Multiatribut untuk Karakterisasi Zona Reservoir Hidrokarbon pada Lapangan "CVN" - Cekungan Sumatera Tengah. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

[img]
Preview
Text
3714100018-Undergraduate_Theses.pdf

Download (4MB) | Preview

Abstract

Lapangan “CVN” merupakan lapangan pengembangan yang berada pada Cekungan Sumatera Tengah. Seiring dengan itu diperlukan metode-metode yang semakin mempertinggi nilai ekonomis lapangan ini. Metode yang tepat untuk mengkarakterisasi reservoir pada suatu lapangan adalah metode inversi impedansi akustik (AI) dan seismik multiatribut. Kedua metode ini mampu meningkatkan resolusi pencitraan struktur bawah permukaan dari data seismik. Litologi formasi target yaitu formasi Bekasap-Bangko pada lapangan ini merupakan shaly sand yang nilai impedansi akustiknya overlap antara sand dengan shale. Pada penelitian ini didapatkan estimasi nilai impedansi akustik batu pasir pada lapangan “CVN” adalah 17.000 ft/s*g/cc hingga 19.500 ft/s*g/cc. Dari metode seismik multiatribut didapatkan estimasi nilai porositas batu pasir Lapangan “CVN” adalah 13-20% dan estimasi nilai cutoff volume shale 0,70 v/v. Metodologi yang dilakukan dalam penelitian ini meliputi pengumpulan data, well-seismic tie, picking horizon dan fault, pembuatan time structure map, analisa crossplot, membuat model inisial, analisa inversi impedansi akustik dan seismik multiatribut. Tren arah persebaran zona reservoir hidrokarbonnya adalah South West-North East dan berkumpul pada puncak tinggian closurenya. ======================================================================================================== The field "CVN" is a development field that located in Central Sumatera Basin. Along with that, methods are needed that enhance the economic value of this field. The suitable method for characterizing reservoir is acoustic impedance invesion (AI) and multiattribute seismic. Both methods are capable for enhancing the imaging resolution of subsurface structures from seismic data. The target formation Bekasap-Bangko in this field is shaly sand whose the value of acoustic impedance is overlap between sand and shale. In this research, the estimated value of sandstone acoustic impedance in field "CVN" is 17.000 ft/s*g/cc - 19.500 ft/s*g/cc. From the multiattribute seismic method, the estimated value of the sandstone porosity in Field "CVN" is 13 -20% and the estimated cutoff volume shale is 0.70 v/v. The methodology used in this research includes data collection, well-seismic tie, picking horizon and fault, time structure map creation, crossplot analysis, initial modeling, acoustic impedance inversion analysis and seismic multiattribute. The spread trend direction of the hydrocarbon reservoir zone is south west-north east and gathered at the center of the closure.

Item Type: Thesis (Undergraduate)
Additional Information: RSGf 551.220 287 Agf a-1 3100018077481
Uncontrolled Keywords: Inversi Impedansi Akustik, Karakterisasi Reservoir, Seismik Multiatribut
Subjects: G Geography. Anthropology. Recreation > GB Physical geography > GB1197.7 Groundwater flow. Reservoirs
Q Science > QE Geology
Q Science > QE Geology > QE471 Sedimentary rocks. Sedimentology
Q Science > QE Geology > QE538.5 Seismic waves. Elastic waves
Q Science > QE Geology > QE601 Geology, Structural
Divisions: Faculty of Civil, Environmental, and Geo Engineering > Geophysics Engineering > 33201-(S1) Undergraduate Theses
Depositing User: Cevin Ian Agfa
Date Deposited: 16 Dec 2020 03:54
Last Modified: 16 Dec 2020 03:54
URI: https://repository.its.ac.id/id/eprint/55832

Actions (login required)

View Item View Item