Seabird completes OBN survey for BPProjects and Operations // October 21, 2009
SeaBird has announced that an Ocean Bottom Node (OBN) survey for BP Exploration & Production it was working on has been successfully completed by the SBX vessels Hugin Explorer and Kondor Explorer in the Gulf of Mexico. The proprietary survey represented the second stage (T1) of a time lapse programme on the BP-operated Atlantis field.
The survey required 500 nodes to be deployed and the removable sensors then positioned in the seabed accurately using ROV support from Hugin Explorer across a steep escarpment at depths ranging from 1,300 to 2,200m.
Operations started end July. Kondor Explorer was used as the source vessel for the program. As the shooting programme progressed, Hugin Explorer was able to recover completed nodes and QC the data onboard simultaneously with the ongoing shooting programme.
The shooting programme was completed on 19 September and all nodes were successfully recovered onboard Hugin Explorer by 21 September. Onboard QC of all data was then carried out. A total of 494 nodes were good for data acquisition purposes, six were found bad.
Hugin Explorer and Kondor Explorer are now in mobilization phase from the US Gulf of Mexico for transit to Nigeria to carry out the previously announced Agbami field survey for Star Deepwater Petroleum Limited, an affiliate of Chevron Nigeria Limited. Operations are expected to commence mid November after arrival and inward clearance of both vessels. An additional 250 Case Abyss deepwater nodes will be loaded onboard en route to Nigeria.