Full text loading...
-
Analysis of C-wave PSTM Results from Three 2D 4C Lines Acquired Offshore West Africa
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 67th EAGE Conference & Exhibition, Jun 2005, cp-1-00193
Abstract
Z99 Analysis of C-wave PSTM results from three 2D 4C lines acquired offshore West Africa P074 Abstract We present an analysis of C-wave PSTM images obtained on three 2D multicomponent (4C) lines acquired offshore West Africa. We applied an anisotropic PSTM sequence developed by the Edinburgh Anisotropy Project (EAP) characterised by a complex parameterisation and robust parameter estimation with a relatively fast workflow. We also analyse the overall contribution of converted waves in this area. The geological setting is not ideal for S-wave propagation due to the presence of low-velocity unconsolidated shales which behave like mud. Nonetheless C-waves give improved