Distributed Acoustic Sensing

Home Seismic Imaging and Processing DAS VSP

We offer Distributed Acoustic Sensing (DAS) VSP processing solutions for 3D and 4D reservoir and carbon storage monitoring. These include presurvey modeling and acquisition design, 3D and 4D processing and imaging as well as advanced model building technologies such as DM FWI using DAS VSP data.

TGS - DAS
TGS - DAS VSP Feasibility Modeling for CCS

DAS VSP Feasibility Modeling for CCS

We can analyze acquisition feasibility, predict subsurface illumination, and optimize source-receiver geometry with state-of-the-art acquisition design and modeling techniques for distributed acoustic sensing data. 

Optimizing DAS VSP Through FWI Imaging

Our DAS VSP tailored FWI Imaging workflows achieve improved resolution and illumination by inverting and imaging the full wavefield data. Compared to conventional processing, FWI Imaging can reduce processing times from months to weeks.

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RTM image
DAS_FWI_2
FWI image
TGS - DAS VSP Noise Attenuation
Input to denoise
TGS - DAS VSP Noise Attenuation (2)
After denoise
TGS - DAS VSP Noise Attenuation (3)
Difference

DAS VSP Noise Attenuation

Our denoise strategy will leverage our powerful onshore and offshore surface seismic toolkit. These AVO-compliant algorithms tend to rely on pattern recognition for noise discrimination rather than on a deterministic noise description. They are thus readily suited to suppressing the noise trains typically observed on DAS VSP data.

DAS VSP Full Wavefield Imaging

Our advanced DAS VSP full wavefield imaging treats the free-surface bounce as a virtual source, thereby decreasing incident angles at depth and extending the range of illumination along the reflector for a fixed source-receiver offset. 

TGS - DAS VSP Full Wavefield Imaging
Primary Wavefield Imaging
TGS - DAS VSP Full Wavefield Imaging (2)
Multiple Wavefield Imaging
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Full Wavefield Imaging

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Discuss Your Seismic Data Needs

Every need is different and we'd like the opportunity to discuss yours further. Speak to one of our data or geoscience experts to customize seismic solutions specific to your requirements.