C-05 POSITIONING ACCURACY AND 4D SEISMIC SENSITIVITY IN LAND ACQUISITION 1 Abstract The most challenging difficulty of marine 4D seismic technology is repeating a given acquisition geometry with high precision. This challenge does not exist onshore. It is therefore possible to aim for the higher 4D sensitivity needed to observe changes in carbonated reservoirs. The required precision of source and receiver deployment is first evaluated on synthetic data. A field experiment is conducted its results are analyzed and as a conclusion recommendations are made to achieve higher 4D sensitivity. Introduction The slower development of 4D seismic technology onshore than offshore


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