This website uses cookies to improve your experience. If you continue without changing your settings, you consent to our use of cookies in accordance with our cookie policy. You can disable cookies at any time.

×

Abstract

In February 2007 Woodside acquired a two boat, push reverse 4D monitor survey. Two‐boat push reverse acquisition was used to maximize 4D repeatability and minimize 4D infill in a survey area known for strong, unpredictable currents. The source and receiver positional repeatability obtained in the monitor is good with a mean |Dsrc|+|Drec| of 27m at the target offset of 1900m. Survey infill is only 7% compared to a predicted infill of 30% to achieve the same 4D coverage with one boat acquisition. Shortcomings of the two‐boat push reverse technique include a large minimum near offset of around 500m and a receiver motion 4D error when matching to the conventional one boat baseline survey. Preliminary processing results indicate an NRMS of 20–25% which is expected to be reduced to below 20% in the final processing.