Question 3281Deck General70% to pass
At the instant when a string of casing being run from a MODU is landed in the well head, _______________.
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.
Related Questions
#3279 When drilling from a MODU, the conductor casing is landed with its top extending to just _______________.#3280 The space around a pipe in a wellbore, the outer wall of which may be the wall of either the borehole or the casing, is the _______________.#3282 When drilling from a MODU the weight in air of tubular goods on the racks is reduced when run into the drilled hole because of the effect of _______________.#3283 A frame with two, or sometimes four, arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the _______________.#3284 At the instant when a string of casing being run from a MODU is landed in the well head, _______________.