Abstract
SUMMARY The key to cross-hole seismic measurements is actually to dispose of appropriate sources and receivers. Most of the cross-hole seismic experiments have been done with hydrophone receivers and air gun or sparker types of sources. We have experimented these tools and compared them to other solutions like a coupled weight drop source and 3 component geophones. These equipments have been tested on a same site, a shallow reservoir in the Paris Basin. The hydrophone streamer enables a fast collection of the data but requires an energetic source (around 10 000 Joules) in order to counterbalance the lack of preamplifiers in the streamer, and to increase signal/noise ratio. The conventional 3 component borehole tool is more sensitive but does not record the full spectrum transmitted by the source (currently up to 500 Hz). Our results corroborate theoretical investigation on the radiation pattern of down-hole sources.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
