Workshop 5
Sampling at the philosophical crossroads: acquisition density, sparsity, and wavefield reconstruction Sunday, June 7th |
Convenors
- Breno Bahia (bp)
- John Northall (bp)
- Ali Alfaraj (Aramco)
- Guillaume Cambois (ADNOC)
- Phil Bilsby (SLB)
- Amine Ourabah (STRYDE)
- Mauricio Sacchi (University of Alberta)
Description
Wavefield sampling may be at a crossroads: philosophical and/or practical. While the progression to denser acquisition in the industry has delivered higher-quality subsurface images, the operational and cost challenges are considerable, particularly on land. Recent advances in irregular sampling strategies and compressive techniques may stand to challenge the march towards ever-increasing acquisition densities. Advanced wavefield reconstruction methods and/or different measurements could be enablers for sampling goals seemingly impractical or uneconomic. With field data examples, this workshop explores the benefits of density in seismic acquisition and the potential of smart wavefield reconstruction to push boundaries and unlock new potential.
Sub-Topics that will be covered in the workshop:
Acquisition design, regular versus irregular sampling, interpolation and wavefield reconstruction, operational challenges, field data, and case examples.
Participant Profile
This workshop brings together professionals and researchers from industry and academia who are involved and interested in seismic data acquisition, processing, survey design, and new sampling technologies or reconstruction methods. From traditional acquisition to compressive techniques and wave-field reconstruction, the participant will enjoy valuable discussions and opportunities to connect with others leading the future of seismic sampling.
| Time | Activity |
|---|---|
| 09:00 | Opening notes, Breno Bahia (bp) |
| 09:10 | Compressive sensing: Has it’s time arrived, and how can we be sure it works, David Monk (DUG) |
| 09:40 | Having to choose between source or receiver density? Some answers from Abu Dhabi, Guillaume Cambois (ADNOC) |
| 10:00 | Lessons from an Ultra‑High Density Land Seismic Acquisition in Oman, Qais Al-Siyabi (PDO) |
| 10:20 | Understanding realistic land noise shows how dense 2D digital patches can optimize its sampling and removal, Christof Stork (LSNS) |
| 10:40 | TBA, James Wallace (BGP) |
| 11:00 | Morning Coffee Break |
| 11:30 | Enhanced source-side sampling and high productivity seismic acquisition using seismic apparition, Johan Robertsson (ETH) |
| 11:50 | The Painful Pursuit of Perfection: Experiments and Lessons Learned in Perfectly Sampled Data, Allan Chatenay (Explor) |
| 12:10 | Discussion on density, Amine Ourabah (STRYDE) |
| 13:00 | Lunch Break |
| 14:30 | Leveraging slopes in multicomponent seismic data reconstruction, Amarjeet Kumar (Shearwater) |
| 14:50 | Rotation and gradient layout for commercial land surveys, Nicolas Goujon (STRYDE) |
| 15:10 | Distributed Source Array on Land: Lessons Learned and Road Ahead, Ali Alfaraj (ARAMCO) |
| 15:30 | Integrating Dispersed Source Arrays into FWI Optimal Survey Design, Joaquin Acedo (SAIG) |
| 16:00 | Afternoon Coffee Break |
| 16:30 | Comprehensive 4D Spatial Sampling Analysis for AVO-Reliable 3D Seismic Acquisition Design, Mostafa Naghizadeh (OptiSeis) |
| 16:50 | TBA |
| 17:10 | Discussion on reconstruction, Ali Alfaraj |
| 17:50 | Closing remarks, Breno Bahia (bp) |
Workshop Programme