Extending VSP to three-dimensional MWD: using drill bit as downhole seismic source
Vertical seismic profiling (VSP) has been used over the past decade to provide seismic images near well bore. A new well bore seismic technique, the TOMEX/reg sign/ Survey, uses the natural vibrations created by the drill bit during the drilling of a well as a downhole energy source. Since the TOMEX Survey requires no downhole instrumentation, it eliminates lost rig time and avoids the complications of open-hole wireline operations. These factors are important whenever rig time is expensive or the risk associated with open-hole operations are high. Furthermore, the ease with which surface receivers can be deployed makes multioffset surveys much more cost effective than conventional offset VSP.
- Research Organization:
- Western Atlas International, Inc., Mountain View, CA (USA)
- OSTI ID:
- 6181786
- Report Number(s):
- CONF-8905132-
- Journal Information:
- AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States), Journal Name: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States) Vol. 73:4; ISSN AABUD
- Country of Publication:
- United States
- Language:
- English
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