UI - Tesis Membership :: Kembali

UI - Tesis Membership :: Kembali

Penerapan metode common reflection angle migration (CRAM) dalam mengidentifikasi struktur patahan bawah permukaan pada lapangan "EL" = Application of common reflection angle migration (CRAM) to identify subsurface structure fault in "EL" field / Amelina

Amelina; Supriyanto, supervisor; Hasan Nurudin, supervisor; Yayan Sofyan, examiner; Waluyo, examiner; Charlie Wu, examiner ([Publisher not identified] , 2015)

 Abstrak

[ABSTRAK
Proses migrasi menggunakan domain sudut memberikan hasil pencitraan bawah
permukaan yang lebih baik dibandingkan dengan menggunakan metode Kirchoff
konvensional yang dilakukan dalam domain offset. Migrasi ini dilakukan dalam
kawasan kedalaman yang memperhatikan variasi kecepatan secara lateral
sehingga memberikan gambaran bawah permukaan yang lebih baik. Common
Reflection Angle Migration (CRAM) Prestack Depth Migration (PSDM), migrasi
kedalaman dalam domain sudut, mampu memetakan titik reflektor bawah
permukaan yang berada dalam struktur geologi bawah permukaan yang cukup
kompleks, salah satunya adalah untuk memetakan ketidakmenerusan objek bawah
permukaan dan imaging serta analisis struktur di bawah permukaan yang
kompleks. Secara umum, metode CRAM dapat mengatasi kasus mutiarrival
conflicts, dengan menggunakan prinsip ray tracing dan multiray path yang
mampu memetakan setiap titik bawah permukaan dari sinar yang datang dari
berbagai arah menuju ke permukaan. CRAM dapat memetakan lapisan atau objek
bawah permukaan yang kompleks, bersifat target oriented, dan menghasilkan true
amplitude angle gather. Disamping itu, metode ini dapat mengurangi efek artifact
yang banyak terjadi pada metode migrasi menggunakan Kirchoff. Pada penelitian
ini dilakukan pemfokusan pada daerah sekitar patahan dengan perubahan
kecepatan yang cukup signifikan. Dilakukan variasi terhadap parameter CRAM,
yaitu: Shooting angle, Aperture Migrasi, Dip ApertureFactor Migration,dan
KMAH index, untuk mendapatkan hasil pencitraan bawah permukaan yang paling
baik.

ABSTRACT
The migration process uses the angle domain provides subsurface imaging results
were better compared to using conventional Kirchoff method which performed in
the offset domain. This migration apply in angle domainwith lateral velocity
variationto provide better imaging. Common Reflection Angle Migration
(CRAM) prestack Depth Migration (PSDM) able to map the subsurface within
complex geological structure, one of them is used foruncontinuityevents. Mapping
the subsurface and imaging as well as analysis of complex subsurface structures.
In general, CRAM method overcome the conflicts mutiarrival case, using the
principle of ray tracing and multiray path capable to image every point below the
surface of the raycomes from various directions towards the surface. CRAM can
map the subsurface layers or complex objects, target oriented, and produce true
amplitude angle gather. In addition, this method can reduce the artifact effects
than Kirchoff method. In this research, focusing on the area around the fracture
with significant changes in velocity. This research proposed to perform a variation
of the CRAM parameters may affected to obtain better imaging, such as:Shooting
Angle, MigrationAperture, Dip Migration Aperture Factor, and KMAH index, The migration process uses the angle domain provides subsurface imaging results
were better compared to using conventional Kirchoff method which performed in
the offset domain. This migration apply in angle domainwith lateral velocity
variationto provide better imaging. Common Reflection Angle Migration
(CRAM) prestack Depth Migration (PSDM) able to map the subsurface within
complex geological structure, one of them is used foruncontinuityevents. Mapping
the subsurface and imaging as well as analysis of complex subsurface structures.
In general, CRAM method overcome the conflicts mutiarrival case, using the
principle of ray tracing and multiray path capable to image every point below the
surface of the raycomes from various directions towards the surface. CRAM can
map the subsurface layers or complex objects, target oriented, and produce true
amplitude angle gather. In addition, this method can reduce the artifact effects
than Kirchoff method. In this research, focusing on the area around the fracture
with significant changes in velocity. This research proposed to perform a variation
of the CRAM parameters may affected to obtain better imaging, such as:Shooting
Angle, MigrationAperture, Dip Migration Aperture Factor, and KMAH index]

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 Metadata

Jenis Koleksi : UI - Tesis Membership
No. Panggil : T43848
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Entri tambahan-Nama badan :
Program Studi :
Subjek :
Penerbitan : [Place of publication not identified]: [Publisher not identified], 2015
Bahasa : ind
Sumber Pengatalogan : LibUI ind rda
Tipe Konten : text
Tipe Media : unmediated ; computer
Tipe Carrier : volume ; online resource
Deskripsi Fisik : xiv, 97 pages : illustartion ; 28 cm + appendix
Naskah Ringkas :
Lembaga Pemilik : Universitas Indonesia
Lokasi : Perpustakaan UI, Lantai 3
  • Ketersediaan
  • Ulasan
  • Sampul
No. Panggil No. Barkod Ketersediaan
T43848 TERSEDIA
Ulasan:
Tidak ada ulasan pada koleksi ini: 20414502
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