Question 3281 Deck General

70% to pass

At the instant when a string of casing being run from a MODU is landed in the well head, _______________.

A the weight of the casing string added to the weight of the fill-up mud is removed from the MODU
B the weight of the casing inside the riser is removed from the MODU
C the hook load (weight of the casing string) is removed from the MODU
D the total weight in air of the casing string is removed from the MODU
AI Explanation

The correct answer is C) the hook load (weight of the casing string) is removed from the MODU. When the casing string is landed in the wellhead, the weight of the casing string is no longer supported by the MODU's hook. This means that the hook load, which is the weight of the casing string, is removed from the MODU's overall weight and load distribution. The other options are incorrect because they do not accurately describe the event taking place. The weight of the casing string and fill-up mud (A), the weight of the casing inside the riser (B), or the total weight in air of the casing string (D) are not the specific loads that are removed from the MODU at the instant the casing is landed in the wellhead.

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