High‐resolution areal (3‐D) seismic survey over a coal mine reserve area

1991 ◽  
Author(s):  
Lawrence M. Gochioco
Geophysics ◽  
2000 ◽  
Vol 65 (3) ◽  
pp. 712-718 ◽  
Author(s):  
Lawrence M. Gochioco

A high‐resolution three‐dimensional (3-D) seismic survey was conducted in advance of coal mine development in the Illinois basin in May 1989 to better define a geologic structure with the potential to adversely affect longwall mining conditions. The 3-D seismic data indicate that an abrupt change in seam elevation, or roll, encountered near the northern property line trends south into the reserve area and then turns southeast. A personal computer‐based workstation was used to integrate borehole and seismic data for modeling in which 3-D block diagrams of the calculated seam elevations were generated. The block diagrams show a steep slope on the west flank of the roll that gradually decreases as the roll turns to the southeast. The survey also reveals a geologic structure beneath the roll at an estimated depth of 46–62 m. Horizontal time‐slice sections of this feature suggest the presence of a paleochannel that meanders on a similar course as the roll, which apparently was connected to a larger paleochannel system. A Conoco high‐frequency vibroseis unit was successfully used as the seismic source to generate the high frequencies necessary to detect and resolve the thin coal beds.


Geophysics ◽  
2002 ◽  
Vol 67 (1) ◽  
pp. 50-59 ◽  
Author(s):  
G.‐Akis Tselentis ◽  
Paraskevas Paraskevopoulos

High‐resolution seismic methods were applied to map the detailed structure and thickness of the Domeniko coal basin (central Greece) and to search for lateral discontinuities, such as pinch‐outs and faults. Extensive tests were performed to optimize recording parameters and equipment. Reflection events which can be attributed to coal layers can be interpreted from depths of approximately 30 to 150 m on CDP stacked and inverted sections. Several low‐throw faults have been interpreted from the sections. Results obtained from the high‐resolution seismic reflection survey combined with drillhole information clearly revealed the 3‐D model of the coal field. Using geostatistical methods, the results of the high‐resolution reflection seismic survey were combined with the information from the borehole program to clearly reveal the 3‐D model of the basin.


2018 ◽  
Vol 71 (0) ◽  
pp. 33-42
Author(s):  
Shigeru Ino ◽  
Shigeyuki Suda ◽  
Hidekuni Kikuchi ◽  
Shiro Ohkawa ◽  
Shintaro Abe ◽  
...  

Author(s):  
James A. Jessop ◽  
Calvin L. Cumerlato ◽  
Kevin M. O‘Connor ◽  
John A. Siekmeier

1997 ◽  
Author(s):  
F. Theilen ◽  
A. Ayres ◽  
G. Lange ◽  
M. Reidel ◽  
C. Papenberg ◽  
...  

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