Ω-Vector

Full waveform solutions for enhanced imaging and rock property characterization

Conventional seismic recording uses a single scalar measurement of pressure or vertical displacement throughout the 2D or 3D survey to derive images and models of the subsurface. Subsequent processing and inversion steps can be linked to the relative shear-wave contrasts in the subsurface using rock property relationships. However, sometimes it is impossible to meet a survey's seismic imaging or reservoir definition objectives using compressional (P) waves alone.

Multicomponent acquisition, including Q-Seabed. records both the pressure and the displacement of the wavefields using 2C, 3C, 4C, or 9C, sensor systems and can record both shear and compressional (P) waves directly.

Ω-Vector consists of a broad range of algorithms and technologies unique to processing multicomponent data for many different multicomponent applications, and is an integral part of the WesternGeco seismic processing portfolio.

Extracting the maximum value from your multicomponent data requires the right balance between experience and technology. Click the links below to find out more:

• Wide angle converted shear wave analysis of a North Atlantic volcanic rifted continental margin: constraint on sub-basalt lithology (First Break October 2007)
• 3D PP/PS prestack depth migration on the Volve field (First Break April 2007)
• Time will tell: New insights from time-lapse seismic data (Oilfield Review July 2004)
• Multicomponent seismic overview, Enhancing exploration results and reducing the risk in reservoir development (Brochure January 2003)
• Shear Waves Shine Brightly (Oilfield Review Spring - 1999)