Objectives/Scope

As subsea oil & gas drilling and production continues to progress into deeper waters the demand for fast, safe, efficient, reliable, and cost effective equipment will continue to grow. Cam locking devices provide an innovative method to meet these requirements in a variety of applications within the oil & gas industry such as, but not limited to, anti-rotation of casing, tubing and riser connectors, and for locking of valves, cylinders, BOP rams, and rigging equipment.

Methods, Procedures, Process

During the development phase of the bite style cam device Finite Element Analysis (FEA) was utilized to perform design optimization in conjunction with a unique design of experiments approach. The results of this study have been used to optimize the high order of design variables that define the geometry of a bite style cam locking device.

Results, Observations, Conclusions

A novel bite style cam device has been developed and applied to threaded connections that employs hardened teeth rather than friction, as in typical cam functions, to provide a locking load capacity. In contrast to solutions currently utilized for connector anti-rotation, the innovative cam design requires no special tooling, hammers, or dangerous explosives to install, making it much safer than solutions on the market today. Installation requires only the use of a simple hex wrench, significantly increasing rig efficiency and drastically reducing installation time, a vital criterion for equipment offshore. Novel/Additive Information: Overall, the bite style cam device has proven itself an ideal solution for subsea and offshore applications. Easy and quick installation and reduced loose parts provide improved value and performance.

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