Which statement about table drive systems is true?

Which statement about table drive systems is true?

• A. Table drive systems are simpler and have lower cost.
• B. Table drive systems provide direct torque.
• C. Table drive systems minimize drill string wear.
• D. Table drive systems require more maintenance.

Answer: (A)

Table drive systems are designed around a rotary table on the rig floor that directly turns the drill string via the Kelly, so the setup is mechanically simple and uses fewer heavy, complex components than top-drive rigs. That simplicity translates into lower capital cost and typically lower maintenance, which is why this statement is true. The other options describe aspects that aren’t reliably true for table drive systems: the notion of “direct torque” can be true in a basic sense but isn’t the defining advantage, table drives don’t inherently minimize drill string wear (wear is more closely tied to how the string and connections are used, and top-drive setups can reduce some wear by changing how rotation is applied), and they do not require more maintenance—in fact, they usually require less.

Table drive systems are designed around a rotary table on the rig floor that directly turns the drill string via the Kelly, so the setup is mechanically simple and uses fewer heavy, complex components than top-drive rigs. That simplicity translates into lower capital cost and typically lower maintenance, which is why this statement is true. The other options describe aspects that aren’t reliably true for table drive systems: the notion of “direct torque” can be true in a basic sense but isn’t the defining advantage, table drives don’t inherently minimize drill string wear (wear is more closely tied to how the string and connections are used, and top-drive setups can reduce some wear by changing how rotation is applied), and they do not require more maintenance—in fact, they usually require less.