Well-informed sources told Upstream that Petrobras is now with a tender out to contract a 4D programme with the use of OBN to ...

Per the terms of the contract, Shearwater Geoservices will conduct a deepwater 4D ocean-bottom node (OBN) seismic survey for ExxonMobil Guyana. The OBN technology is especially suited for ...

ExxonMobil Guyana let a deepwater 4D ocean bottom node (OBN) reservoir surveillance program to Shearwater Geoservices AS. Under the award, Shearwater will begin a 6-month survey starting in first ...