Abstract
Summary Zero offset Vertical Seismic Profiling (ZVSP) is a very well-known tool for time to depth calibration. This kind of geometry is specially demanded at the early stages of field development, when velocity models may still be under refinement. Borehole seismic surveys as such are usually scheduled with the wireline logs at the last section of the well, once the drilling program has already been completed. One of the questions from the ZVSP deployment is how this technology can provide decision support before the drilling is complete. Here we present a field case offshore Mexico, in the Tabasco coast shallow waters, where a ZVSP was successfully used as a geo-stopping technology in a “look-ahead” fashion, enabling the identification of an unexpected salt body ahead of the bit and a potential missing geologic formation in the sequence, which in turn allowed on-time well repositioning.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.