Transition Zone Seismic: A Method to Integrate Various Source And Receiver Combinations

Exploration in transition zones is challenging due to rapidly varying surface conditions, which require the use of creative acquisition and processing techniques. In the case described here, a 3D transition zone seismic survey was acquired with nine different source and receiver combinations, each designed to accommodate a particular environment, ranging from onshore to offshore. Therefore, wavelet processing was a critical stage in processing this survey. Improvements in modeling deterministic wavelet components and in handling noise effects have enhanced the design of appropriate wavelet processing operators. With all data converted to minimum phase, regardless of the energy source and the receiver type, statistical deconvolution more effectively compressed the wavelet. The resulting 3D survey has excellent resolution and continuity, allowing a refined structural interpretation and a detailed stratigraphic analysis to be completed.