Question 3284Deck 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 well head, the weight of the casing is no longer supported by the MODU's hook, so the hook load (weight of the casing string) is removed from the MODU. This is the key principle at work.
The other options are incorrect because they do not accurately describe what happens to the weight of the casing string at the moment it is landed in the well head. The total weight of the casing string, the weight of the casing plus the fill-up mud, or the weight of the casing inside the riser are not the correct quantities that are removed from the MODU.
Related Questions
#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 _______________.#3285 A large valve, usually installed above the ram preventers, that forms a seal in the annular space between the pipe and wellbore or, if no pipe is present, on the wellbore itself is called the _______________.#3286 The connected joints of pipe, usually made of three joints of pipe approximately 90 feet long, racked in the derrick when making a trip are called a _______________.#3287 A heavy, thick-walled tube, usually steel, used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a _______________.