A method for fail and collecting of seismic data terms of layers of rock, which, under water masses lie under the use of a continuously moving seismic exploration system, which is set up on a single boat, wherein separate float be used.

摘要

1455956 Seismic prospecting CHEVRON RESEARCH CO 19 June 1974 [29 June 1973] 27304/74 Heading G1G In what is essentially a development of the marine seismic prospecting system of Specification 1394533 (see Division H3-5), a second hydrophone streamer is towed behind the or a second boat such that its hydrophones follow the same course line as the boat. Hydrophone positional data and seismic reflection data are obtained and recorded digitally, much as in Specification 1394533. Whereas the first streamer provides seismic data relating to depth-points laterally offset from the boat course line, the second streamer's data relates to "in-line" depth points (i.e. in a vertical plane through the course line). Processing of the data (no details given) from both streamers enables normal moveout as well as "in-line" and "cross" components of dip moveout to be separately evaluated.