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INTERPRETASI DATA SEISMIK REFLEKSI : PICKING HORIZON DAN PICKING FAULT Wibowo, Barrend Wellyadi; Hutagalung, Soly Deo Gloria
Journal of Renewable Engineering Vol. 1 No. 1 (2024): JORE-FEBRUARY
Publisher : Pt. Anagata Sembagi Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62872/9vmm1j72

Abstract

Seismic method practicum has been carried out with the title "Interpretation of reflection seismic data: picking horizon and picking fault". The seismic method is a geophysical method that is often used in imaging the subsurface conditions of the earth. The purpose of this practicum is to find out how to do picking horizon and picking fault. Picking horizon and picking faults are done with petrel software. Picking Horizon is a method that is carried out by making a horizon line on a continuous layer on a seismic cross section. For picking horizon, petrel software is used. From these data it is known that there are 3 horizons (layers). Fault picking is carried out simultaneously with seismic horizon picking. Fault picking is carried out starting from a clear shift in the horizon and continuing to the vertical shift zone. For picking faults, petrel software is used. From these data it is known that there are 4 faults (faults).
KURVA T-X Wibowo, Barrend Wellyadi; Hutagalung, Soly Deo Gloria
Journal of Renewable Engineering Vol. 1 No. 1 (2024): JORE-FEBRUARY
Publisher : Pt. Anagata Sembagi Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62872/21kczt97

Abstract

 This seismic method practicum meeting is expected that practitioners are able to meet the objectives of knowing the process of forming the T-X curve in refraction seismic. The practicum was held on Monday, December 5, 2022 at the Faculty of Science and Technology, Jambi University. Based on the T-X curve attached to T-X 1, the reverse direct will be inverted from the forward. This value will be searched for an equation to get the result of rock velocity based on forward and reverse waves. Velocity is the level of rock hardness that will determine the speed of a wave in a rock layer. For interpretation, it can be seen from the table of seismic wave propagation velocity in the rock above. Where for V1 of 333.3333 m/s is included in layered weathered rock. For V2 where the speed value is 1000 m/s is unsaturated sand and gravel. For V3 where the velocity value is 1666,67 m/s, it is sand and shale. The interpretation of these rocks actually requires information about the formation where the data was collected.