Technical Paper: Deepwater Seismic Data Collection and Processing - A Study from the 2006 Turkish Black Sea Kozlu 3D Program

Society: EAGE
Paper Number:
Presentation Date: 2008
 

In 2006 Türkiye Petrolleri A.O (TPAO) awarded WesternGeco the data collection and processing of the Kozlu (2850 km2) Black Sea exploration 3D survey. This area (Figure 1)challenges both data collection and data processing technologies. The effect of rip currents, (related to water-bottom topography), on streamer geometry were controlled by the use of advanced infield systems. The rugose dipping water-bottom, and complex near surface geology in the area combined to give significant seismic multiple attenuation challenges, which were overcome by using a combination of advanced de-multiple techniques. TPAO also required fast track data volumes, to site wells for field appraisal. The nature of these geophysical challenges combined with the delivery requirements, required that intensive processing of the acquired data had to be performed onboard the vessel, These on-board processed datasets were also used as the basis for the full onshore processed products.

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