Paper: Factors that Affect the Reliability of Couplings

Failures in the sucker rod industry can be costly and time consuming. As an end user in this industry, it is very critical to understand the mechanics behind couplings. This paper addresses some of the important aspects of couplings which play an important role in the overall reliability of the rod string. The topics addressed in this presentation are as follows: 1. Strength of material analysis of coupling and sucker rods, 2. What happens to a sucker rod coupling joint during an improper makeup process, 3. Types of manufacturing processes for couplings, 4. Recommended field practices.