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Cygnus 3D Marine Seismic Survey Phase 3 2017-2018

Activity type Seismic survey
Activity subtypes
Submitted by Polarcus Seismic Limited
Submission date 20 August, 2015
Subtype New
Decision date 14 December, 2015
RMS ID 3292
Status Finalised
Outcome Accepted
Link to previously accepted EP

Ms Nina Neshpor
Multi-Client Project Supervisor
Polarcus Seismic Limited
c/- Polarcus DMCC, Almas Tower, Level 32, Jumeirah Lakes Towers
PO Box 283373
Telephone: +971 4 43 60 959

Location map (click to enlarge)
Location map - Activity: Cygnus 3D Marine Seismic Survey Phase 3 2017-2018 (refer to description)

Polarcus Seismic Limited (Polarcus) proposes to undertake a three-dimensional marine seismic survey (Cygnus 3D MSS) in Commonwealth waters of the Vulcan Sub-basin (in the Western Bonaparte Basin), approximately 150 km off the Kimberley coast of northern Western Australia (WA) and 110 km from the Indonesian archipelago and East Timor.
The Cygnus 3D MSS is anticipated to take a total of approximately 12 months to complete with two phases of approximately six months each. The survey has the potential to start as early as October 2015.  Exact start and end dates and phasing will be communicated by Polarcus (in accordance with the Cygnus 3D MSS EP’s stakeholder consultation process) based on seasonal restrictions due to environmental sensitivities, availability of vessel and weather conditions; although it is currently proposed that the survey be completed no later than October 2017.
Seismic data acquisition will be undertaken by one Polarcus-owned and operated seismic vessel.  The total volume of the seismic source proposed for the survey is 3,090 cubic inches.  This source size was selected as the minimum size to achieve the technical objectives.  The seismic source will be towed at approximately 4.5 knots along pre-determined survey lines with 562 m spacing.  Three seismic sources will be discharged alternately (‘flip-flop-flap’ source configuration) at 12.5 m intervals (referred to as the shot point interval) along each survey line.  A total of 10 solid hydrophone streamers each measuring approximately 8,900 m in length will be towed at a depth of between approximately 15 m below the surface. 

Other Details
Locations Ashmore Cartier, North West
Commonwealth waters adjacent to ACI , Western Australia
Titles (or other instruments) Title Appliccation Reference 572D8F
Current Documents (Finalised)
EP Document

Location map