Which type of drilling rig is typically low maintenance?

The cable tool rig is recognized for its low maintenance requirements due primarily to its mechanical simplicity and fewer moving parts compared to other drilling rigs. Its operation relies on a heavy bit that is lifted and dropped, enabling penetration into the ground without the complexity of high-speed rotational systems.

Because of this straightforward mechanism, issues such as wear and tear are significantly reduced, making it easier and less costly to maintain over time. Additionally, cable tool rigs do not rely on fluid circulation systems, which can often complicate maintenance schedules in rotary rigs or air rotary rigs. The absence of hydraulic systems also minimizes potential points of failure, contributing to their reputation for reliability and ease of upkeep. This practicality makes cable tool rigs a favorable choice in various drilling applications, particularly in environments where maintenance resources may be limited.

In contrast, other types of rigs may involve more complex components and systems that require regular maintenance and can lead to increased downtime if repairs are necessary.