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Vampire Non-Exclusive 2D Seismic Survey

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Sink your teeth into the Browse Basin with Searcher’s Vampire 2D Seismic Survey.  The recently acquired 2D survey comprises of ~7,000 km of ready to interpret long-offset modern PSTM and PSDM seismic data in the prolific Browse Basin, Western Australia. Tied with 60 key wells, the dataset provides an easily accessible regional overview of the structural and stratigraphic framework of the Browse Basin.

The survey was acquired using the Seabird vessel, M/V Aquila Explorer. The Aquila utilised high-end Sercel Sentinel Solid Streamer technology and Bolt Source equipment (up to 6300 cu in) and was one of the best equipped 2D seismic vessels available to undertake this project. A full suite of additional products have been generated during the processing sequence and allows for further work such as AVO studies, inversion and basin modelling.

The Vampire 2D seismic survey was designed with extensive industry input with respect to line orientation and well-tie selection.  In addition, its long offsets and acquisition parameters have addressed key problems found in legacy 2D and 3D open file datasets by providing significant uplift in data quality and superior imaging at all play levels, particularly within deeper structures across the basin.  The survey allows identification of Jurassic, Triassic and Permian structures and provides insight into potentially untapped resources.

AVO analysis has proven to be problematic with open file vintage data across the basin.  The Vampire 2D survey addresses this problem with its long offset acquisition and careful selection of processing methods and techniques.  The PSDM processing provides additional uplift by accounting for complex anisotropy and ray pathing issues, especially below thick shale packages and below Cretaceous and Jurassic volcanics, allowing 3-term AVO inversion for reservoir characterization and field development. Gravity and magnetic data was also acquired and processed and available for delivery.

For further information or to request a quote, please contact us directly: sales@searcherseismic.com

Read our AVO technical article
Project parameters
Project Size

~7,000 km

Acquisition Details

Sercel Sentinel Solid Streamer

M/V Aquila Explorer (Seabird)

Gravity and magnetic data acquired and processed

Acquisition Parameters

Sample Rate: 2 ms

Record Length: 8 sec

Streamer Length: 7950 m

Key Processing Parameters

SRME

Kirchhoff PSTM

Deliverables

Full Angle AGC Migration SEGY

Navigation Data P190

RMS Stacking Velocities ASCII

Processing Report PDF

Raw Angle Stacks (Near Mid Far) SEGY

Final Angle Stacks (Near Mid Far) SEGY

Field Tapes SEGD

Demultiple Gathers SEGY

PSTM Gathers SEGY

AVO Intercept SEGY

AVO Gradient SEGY

AVO Intercept x Gradient SEGY

RMS Migration Velocities ASCII

Gravity and magnetic data

Project partners

SeaBird Exploration

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Related resources

Dude, where’s my AVO? A case study from the Browse Basin, North West Shelf, Australia

Amiribesheli, S., McGlew, J., and Thorp, J., 2019, Presented at AEGC2019 Data to Discovery, Perth, Australia

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