Question 3265Deck General70% to pass
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 _______________.
AI Explanation
The correct answer is B) drill collar.
A drill collar is a heavy, thick-walled tube, usually made of steel, that is used between the drill pipe and the drill bit in the drill stem. The purpose of the drill collar is to add weight to the drill bit, which helps improve its performance and penetration into the ground or seabed.
The other answer choices are incorrect because:
A) heavy-walled drill pipe is not the correct term for this component.
C) a down-hole tool is a general term that does not specifically refer to the drill collar.
D) a tool joint is the connection between sections of drill pipe, not the drill collar itself.
Related Questions
#3263 What is the female section of a tool joint called? #3264 The end of the joint with the exterior threads is called the _______________.#3266 An integral part of a blowout preventer that serves as the closing element on an open hole, and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the _______________.#3267 What is a pinion in a jacking system? #3268 The pneumatic containers which store bulk dry mud additives and cement on a MODU are called _______________.