Carina® Seismic

Carina Seismic delivers high accuracy repeat seismic on demand without interrupting production or risking infrastructure. It does so with greatly reduced source effort, delivering high quality, densely sampled seismic data with significantly reduced operating time and costs.

The distributed fibre optic sensing-based service offers unparalleled insight into changes occurring within the reservoir enabling rapid decision making to maximise recovery.

Fibre optic sensing-based Permanent Reservoir Monitoring (PRM)

Permanent Reservoir Monitoring (PRM) relies on permanently installed sensors providing high quality, continuous or semi-continuous data in real-time which enables the imaging of hydrocarbon-bearing layers beneath the earth’s surface. However, accurate in-well seismic data from the most valuable assets is rarely acquired as a result of the cost and risk of well-intervention wireline or seabed surface seismic.

By utilising Silixa’s new family of engineered Constellation™ fibres, incorporated within standard cables, the Carina® Sensing System can achieve up to 20dB (100x) improvement in signal to noise ratio over the already class-leading iDAS™ system.

This step-change in DAS performance enables our Carina Seismic service to offer unmatched insight into changes occurring within the reservoir, enabling rapid decisions to adjust well design and positioning, production and injection rates in order to maximise recovery.

Carina Seismic offers performance beyond geophones. With the combination of up to 20dB improvement in SNR, fine spatial sampling and full wellbore coverage for every shot, it offers unprecedented detail in every shot record.

Benefits

Full wellbore coverage

Carina Seismic, the permanently installed distributed fibre optic sensing-based system, acquires data along the entire wellbore for every seismic shot


Unrivalled data quality enables cost effective reservoir characterisation

Extremely high signal to noise ratio gives seismic data quality beyond that of a standard geophone array


Borehole seismic for the fraction of the cost

High signal to noise ratio enables seismic surveys with either reduced source effort or fewer shots, hence lowering the operation time and cost


Permanent installation reduces OPEX across life of well

Continuous data availability without need for intervention


Eliminate the cost of deferred production

Intervention-free operations allow for seismic surveys in flowing wells


Increase ultimate recovery

Permanent installations enable 4D seismic on demand throughout the life of well


New powerful capabilities without further additional OPEX

Continuous well diagnostics throughout the life of well

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Performance beyond geophones

Carina Seismic

Carina Seismic: stack of 5 sweeps, acquired with full wellbore coverage for every shot. Total acquisition time: ~4mins.

Geophones

Wireline geophones: stack of 5 sweeps, over 11 tool positions. Total acquisition time: ~4hrs

High quality seismic data at a fraction of the time and cost of conventional methods

Carina Seismic achieves full wellbore coverage for every shot, eliminating the need for repositioning a tool at different depths, enabling vertical seismic profiling within minutes instead of hours.

With permanently installed fibres, the receivers are available at all times with no further deployment costs. Repeat surveys can be acquired on-demand at a fraction of the cost, enabling more frequent surveys giving greater insight into changes in the reservoir.

Silixa’s new suite of advanced software tools provides real-time field deliverables. Acquisition QC plots are generated at the wellsite to ensure high quality, accurate data is collected. SEGY files, fully populated with accurate source and receiver headers, are generated in real-time.

Silixa has worked closely with some of the world’s largest operators to implement IT solutions that enable transfer of data to processing centres around the world. With fast-track processing flows, images can be available a few hours after acquisition for accelerated decision making.

Downloads

Download the Carina Seismic brochure

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