The Heerema semisubmersible crane vessels Thialf and Sleipnir were used on the job to remove the 36,000-ton structure.
The impact of orphan wells, both on the environment and on tightening budgets, is a growing concern in the industry. Boom times result in a vast uptick in wells drilled. In bust times, when companies disappear, the liability outlook for these probes gets murky and federal and state governments start looking for answers.
The paper explores the biology of the invasive Tubastraea sun coral, aiming to identify methods to eliminate or diminish its spread.

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