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What Is the 'Point' of High-Resolution 2D 2,880-Channel Acquisition
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE Research Workshop - Advances in Seismic Acquisition Technology, Sep 2004, cp-18-00008
Abstract
A11 WHAT IS THE “POINT” OF HIGH-RESOLUTION 2D 2 880-CHANNEL ACQUISITION? Abstract 1 A 2D high-resolution 2 880-channel seismic crew has recently operated in Saudi Arabia for 3 years. The initial single-source line/single-receiver line configuration with “point” receiver arrays (all-pass spatial filter) recorded low signal-to-noise seismic shot gathers which were difficult to enhance in processing resulting in poor seismic imaging. Through uncorrelated noise-strip and synthetic modeling analysis it was confirmed that unfiltered back-scattered energy and coherent/random ambient noise sources were primary causes of degradation of the seismic images. Subsequent in-field acquisition testing revealed that the in-line spatial sampling could be