Sarawak Multisensor | PGS

Sarawak Basin - Malaysia - 2021

Sarawak Multisensor 3D GeoStreamer (In Acquisition)

A PGS-led JV consortium (with TGS and WG) is acquiring the first phase of the new Sarawak MC3D.
Website Map for Survey Sarawak MC3D
This is the start of a multi-year contract awarded by Petronas in 2020 to the Sabah-Sarawak seismic consortium, through competitive bidding to acquire and process up to 105 000 sq. km of MultiClient 3D data over a 5-year period in the Sarawak Basin. Phase 1 will be ca 8400 sq. km.
Targets the Luconia province, which consists of Tertiary clastic and carbonate targets and is part of the greater northwest Borneo Sundaland geological province.
Acquisition tailored to the targets and water depths in the area, using a wide-tow source and a broadband multisensor GeoStreamer configuration of 14 streamers each 8025m, with a streamer separation of 93.75m.

Specifications

Survey summary

  • Type: 3D (In Acquisition)
  • GeoStreamer
  • Size: 6500 sq.km
  • Acquisition year: 2021
  • Completion of processing: 2022
  • Vessel: Ramform Sovereign
  • In partnership with: TGS and WG

Acquisition parameters

  • Number of streamers: 14
  • Streamer length: 8025 m
  • Streamer separation: 93.8 m
  • Shot interval: 12.5 m
  • Record length: 7000 ms

Processing

  • P-UP generation
  • Full source deghosting
  • 3D surface related multiple elimination (SRME)
  • Convolutional 3D SRME
  • High resolution radon demultiple
  • Kirchhoff prestack time migration (PSTM)
  • Kirchhoff prestack depth migration (PSDM)

Depth products

  • Final Kirchhoff PSDM stack
  • PSDM angle stack near
  • PSDM angle stack mid
  • PSDM angle stack far
  • PSDM angle stack u-far
  • PSDM gathers
  • Anisotropy and velocity models
  • Final Kirchhoff PSDM angle stacks

Time products

  • Final Kirchhoff PSTM Stack

Additional products

  • Gravity
  • Magnetics