Indonesian Journal of Physics (IJP)
Vol 20 No 2 (2009): Vol. 20 No. 2, April 2009

Characterization of Subsurface Coal Using Seismic Tomography : a Case Study in Muara Enim South Sumatera

Bagus E. B. Nurhandoko (WISFIR Lab., Physics of Complex System, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia)
Syahrul Mubarok (PT. Rock Fluid Imaging Lab., Bandung 40122, Indonesia)
Indriani Sukmana (PT. Rock Fluid Imaging Lab., Bandung 40122, Indonesia)
Fajril Ambia (PT. Rock Fluid Imaging Lab., Bandung 40122, Indonesia)
Budi Sulistyanto (Faculty of Mining & Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesia)
Syafrizal Syafrizal (Faculty of Mining & Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesia)
Y. Wiyanto (PT Tambang Batubara Bukit Asam, Muara Enim, Indonesia)
Hussein Rudiyanto (PT Tambang Batubara Bukit Asam, Muara Enim, Indonesia)



Article Info

Publish Date
03 Nov 2016

Abstract

In recent years, coal as well as coal bed methane becomes important energy resources. Therefore, the characterization of coal seam is also important in predicting the quality, porosity and pore’s fluid of CBM’s reservoir. Seismic wave is very important parameter to characterize reservoir’s properties of coal bed methane as well as quality of coal. In this paper, we show methodology to image the subsurface velocity using seismic tomography. It is very useful for characterizing the coal’s seam as well as to detect the position of intrusion body. A case study was carried out in Suban Block, Muara Enim Sumatera. This coal mining block contains igneous rock intrusion which becoming main control of coal’s quality. Coal which is close with intrusion body usually has better quality than far zone. To acquire the data, we used 48 channels of seismic recorder controlled by telemetry for controlling the shot and first break. Then, data are processed by Fresnel interpolated wave-path (FIW) wide-band inversion tomography. The results show that the intrusion body can be imaged clearly and the seam coal can be delineated from well information. The information in well controls are quite match with tomography results.

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Journal Info

Abbrev

ijp

Publisher

Subject

Astronomy Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering

Description

Indonesian Journal of Physics welcomes full research articles in the area of Sciences and Engineering from the following subject areas: Physics, Mathematics, Astronomy, Mechanical Engineering, Civil and Structural Engineering, Chemical Engineering, Electrical Engineering, Geotechnical Engineering, ...