PROCESSING QUALITY CONTROL TECHNIQUESMitigating risk and reducing cost by providing superior quality seismic data processing and imaging solutions.
Our crews share best practices across all regions to ensure safe operating methods, maximum efficiency and consistent high-quality data for all projects. Many of our team members are cross-trained for different projects in different regions of the world, enabling them to bring experience and knowledge diversity to your project. As a result, SAExploration are recognized as one of the safest, and the most knowledgeable and innovative geophysical surveying contractors in the world.
In short, we assess and recommend acquisition parameters and technologies that meet objectives with maximum accuracy and minimal risk.
3D PSPI Pre-Stack Depth Migration Fast-Track
OBS Nodes are standalone systems that require a good end of line data verification before sending the data to processing centers. Therefore, it’s very important to establish a clever way to Fast-Track the data. SAE’s 3D PSPI Fast-Track Processing capability provides a faster solution to monitor the quality of the acquired data. The module bins the volume on a coarser grid and applies a multi-velocity PSPI (Phase-Shift-Plus-Interpolation) Migration using a legacy velocity model providing a preliminary view of the entire dataset. Our commitment is to reduce the time required to perform the Fast-Track Processing, ensuring quality and efficiency.
Wave-Equation Illumination Studies
Most illumination studies performed by the industry are carried out using the ray tracing technique. However, two-point ray tracing fails on complex velocity models. SAExploration provides a wave equation methodology for illumination studies prior to the nodes survey.
The 3-D PSPI shot record imaging is an excellent way to study illumination of horizons or features beneath complex overburden and analyze the effects of different survey layouts. After defining the area of interest, the wave-field is forward-extrapolated using a pseudo-spectral algorithm based on Fourier transform spatial derivatives. Synthetic stacked imaged records, color amplitude scale maps and depth slices are displayed for analysis.
End of Line QC
- Data input - after active shots extracted from continuous record
- Common Receiver Gathers Sort
- First Break Picking
- Flag bad components and bad records
- Direct arrival polarization