P186 Over/Under a Technology for Illuminating Deep Objectives D.I. Hill* (WesternGeco Ltd) J. Bacon (WesternGeco) T. Brice (WesternGeco) L. Combee (WesternGeco) C. Koeninger (WesternGeco) M. Leathard (WesternGeco) & S. McHugo (WesternGeco) SUMMARY The concept of the over/under acquisition technique has been known and understood since the mid-1980s. The technique was first proposed by Sønneland and Berg (1985) and first attempted by Geco. This initial attempt was not successful as the two cables could not be kept vertically paired. The recent commercial applications of the over/under technique have only been made possible by the development of the steerable cable. The paper


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