Underwater water blasting and jetting; underwater blasting and clearing; maintenance, repair, and inspection of subsea facilities such as oil and gas drilling and production platforms, pipelines, and wellhead assemblies; underwater site clearance and debris removal; underwater repair of pipelines, risers, and flowlines; underwater installation of connectors for pipelines, risers, and flowlines; installations and maintenance of oil and gas drilling and production, cable guyed platforms; instal...