Transition Zone (Tz) Seismic Acquisition, Opening New Frontiers Along Brazilian Coastlines

Transition Zone (TZ) seismic data acquisition<br>occurs in areas where the land crews finish their<br>work and the marine crews begin theirs’. In the<br>TZ, problems arise from equipment limitations,<br>the logistics of operating in water as well as on<br>land, and crew requirements necessary for<br>deployment of equipment in both environments.<br>These are a few of the contributing factors to an<br>increase in technological difficulties associated<br>with TZ seismic data acquisition. These technical<br>difficulties result in operational problems<br>increasing the acquisition cost per kilometer and<br>causing degradation in the TZ seismic data quality.<br>The ongoing conversion of natural gas into<br>electricity with turbines coupled with an increase<br>in demand for electricity has resulted in an<br>increase in demand for natural gas. As the “gas<br>bubble” has burst in the USA, where the low<br>price for natural gas was related to an<br>overabundant supply of gas, a higher price for<br>natural gas is now being realized. All this plus<br>the merger of large oil and gas companies into<br>“Mega” companies, has resulted in a niche being<br>created for companies interested in a natural gas<br>exploration strategy, particularly in areas where<br>it is more difficult to explore, such as the Transition Zone.