Borehole Seismic

Borehole seismic on permanently installed fibre optic cables provides higher operational efficiency, reduced risks and minimised environmental impact.

When the optical fibre cable is permanently installed in the well, seismic acquisition can be performed without the need for well intervention and without stopping production, therefore offering significant savings to the operator and opening acquisition opportunities in existing wells otherwise not accessible to conventional borehole seismic techniques.

Silixa’s distributed acoustic sensing-based seismic services enable efficient decision making by providing high-resolution seismic data throughout the life of the well.

 

Borehole seismic on permanently installed fibre optic cables provides higher operational efficiency, reduced risks and minimised environmental impact.

iDAS Seismic

The intelligent Distributed Acoustic Sensor (iDAS™), when coupled to an optical fibre, provides a versatile seismic acquisition platform capable of meeting many borehole seismic objectives.

As a true acoustic sensor, the phase fidelity and linear amplitude response of the iDAS make it possible to process acquired data using conventional seismic techniques allowing for rapid and seamless integration of iDAS Seismic into existing acquisition strategies.

iDAS can operate on both singlemode and multimode optical fibres with no loss of performance and without the need to introduce additional apparatus.

Learn more on iDAS here.

Carina® 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 highly improved SNR, fine spatial sampling and full wellbore coverage for every shot, it offers unprecedented detail in every shot record.

Learn more on Carina Seismic here.