John E. Chance & Associates, Inc., of Lafayette, La., has developed an innovative process to capture a clearer picture of the ocean bottom and construction near a structure. This process was developed to meet the challenges oil companies are facing as they exceed capabilities of surface positioning systems used to position vessels during redevelopment of existing fields. Chance incorporates a Sonavision 4000 scanning sonar system to collect data of seafloor features, along with a proprietary image enhancement and analysis software. The combination creates a greater definition and resolution of seafloor features and hazards, which is beneficial during preparation of maintenance or redevelopment work at a well site or structure.