Spectrum recently completed the successful acquisition of long offset data for Bahamas Petroleum Company (BPC) in the southern blocks of Bahamas waters close to the border with Cuba, and seismic data processing is currently underway at its Houston Data Processing and Imaging Centre.
Previous data in the area are from the 1980’s, using FK demultiple and post stack migration technology. Modern acquisition and processing techniques are proving effective in providing significant improvement in the quality and resolution of the data.
A combination of 2D Surface Related Multiple Elimination (SRME) to attenuate water bottom related multiples and High Resolution Radon demultiple to attenuate faster interbed multiples has been used. These techniques have been successful in minimizing multiples in this dataset. The data also benefited from specialist noise reduction using Spectrum’s proprietary NoiseRM process.
Previous data in this area used only post stack migration, but for the new data two passes of Kirchhoff Pre Stack Time migration have been used: The first pass to produce a migration velocity field with analysis every 1 km, and the second pass to finally migrate the data more accurately. Subsequently, a final velocity analysis was run on this migrated data to provide a final stacking velocity.
Spectrum provides seismic data processing, Multi-Client surveys and offshore seismic data acquisition services to the global oil and gas industry from offices in the UK, USA, China, Egypt, Australia and Singapore.
Spectrum offers 2D and 3D, land and marine seismic data processing in both depth and time.
All statements in this press release other than statements of historical fact are forward-looking statements and are subject to a number of risks, uncertainties and assumptions that are difficult to predict and are based on assumptions as to future events that may not prove accurate.
Notes to editor
Download press release online: https://www.spectrumgeo.com/News-And-Events.php
A sample high resolution seismic section is available as a high resolution JPEG image by return.
Caption: Sample seismic section from BPC data