Question 3282Deck General70% to pass
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 _______________.
AI Explanation
The correct answer is A) buoyancy of the mud.
When drilling from a MODU (Mobile Offshore Drilling Unit), the weight of the tubular goods (such as drill pipe) is reduced when run into the drilled hole due to the buoyancy effect of the drilling mud. The drilling mud, which fills the hole, exerts an upward buoyant force on the tubular goods, reducing their apparent weight in the water. This buoyancy effect is the primary reason for the reduced weight of the tubular goods when they are submerged in the drilled hole.
The other options are incorrect because: B) vessel motion does not directly affect the weight of the tubular goods in the drilled hole, C) drill string compensators are used to compensate for vessel motion, not buoyancy, and D) formation pressure does not directly impact the weight of the tubular goods in the drilled hole.
Related Questions
#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 _______________.#3281 At the instant when a string of casing being run from a MODU is landed in the well head, _______________.#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, _______________.#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 _______________.