Modelling of Oilwell Borehole Logging Tools

1992 ◽  
pp. 132-142
Author(s):  
J. Butler ◽  
A. F. Avery ◽  
B. Darling ◽  
P. B. Kemshell ◽  
A. D. Knipe
Keyword(s):  
Borehole Logging

Acoustic borehole logging

1991 ◽  
Vol 90 (6) ◽  
pp. 3386-3386
Author(s):  
Robert A. Broding
Keyword(s):  
Borehole Logging

scholarly journals Borehole Logging in Alpine Periglacial Talus Slopes (Valais, Swiss Alps)

2014 ◽  
Vol 26 (1) ◽  
pp. 67-83 ◽  
Author(s):  
Cristian Scapozza ◽  
Ludovic Baron ◽  
Christophe Lambiel
Keyword(s):  
Swiss Alps ◽  
Borehole Logging ◽  
Talus Slopes

Dispersion correction for acoustic borehole logging data

2017 ◽  
Vol 142 (4) ◽  
pp. 2643-2643
Author(s):  
Said Assous ◽  
Peter Elkington
Keyword(s):  
Dispersion Correction ◽  
Borehole Logging

Identification of Double-layered Water-filled Zones Using TEM: A Case Study in China

2018 ◽  
Vol 23 (3) ◽  
pp. 297-304
Author(s):  
Guoqiang Xue ◽  
Dongyang Hou ◽  
Weizhong Qiu
Keyword(s):  
Field Survey ◽  
Coal Mines ◽  
Northern China ◽  
Shanxi Province ◽  
Well Drilling ◽  
Borehole Logging ◽  
Transient Electromagnetic ◽  
Geophysical Technique ◽  
Instrument Sensitivity

At present in China, the use of the transient electromagnetic method (TEM) is emerging as a leading geophysical technique for exploration of water-filled zones in coal mines. These zones are more conductive than the host coal and are easy targets to map. However, there is a growing interest for the investigations of double-layered or multi-layered mined-out zones. Therefore, it is necessary to study the feasibility of TEM's abilities to detect double-layered, water-filled voids. In this study, the basic hydrogeological conditions of a survey area, located in the northern China, are described. The corresponding geophysical models of the single- and double-layered water-filled zones are developed from borehole logging data. Then, forward calculations of different models are carried out with 1D numerical simulations. The modeling results show that it is feasible for TEM to identify these types of targets under certain conditions, including instrument sensitivity, low resistivity for the water-filled zones, and shallower depths. Moreover, the field survey for locating double-layered water-filled zones in coal mines in the Datong region of Shanxi Province is verified by well drilling.

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