Understanding the bend radius of your drill pipe is crucial for maximizing its lifespan. The ability of the pipe to bend is determined by its steel grade, manufacturing method, and dimensions. Over-steering or exceeding the allowable bend radius can lead to premature rod failure, such as permanent bends or breaks.
To avoid this problem, it is important to be aware of the bend radius of your pipe. Contact us now. We can help you check the bend radius.
We believe that the most effective approach to discussing bend radius is by using % slope per rod as a measurement. It is crucial to understand that % slope per rod represents the maximum permitted bend radius, which should be evenly distributed across the entire length of the rod.
Let's take an example with the D80x100 rod:
If the stated bend radius is 7.5% and you are using a 15' drill stem, the calculation shows that it is 1/2% per foot. (7.5% divided by 15')
However, it is important to note that this does not imply that you can bend the rod 7.5% in the first 5' and then not bend it at all over the next 10'. The bend radius assumes a uniform and evenly applied bend.