Choosing the Right Bit

Drilling programs throughout the world are now more challenging in terms of depths, well profiles, and formation drillability (often determined by hardness and/or abrasiveness). Drill bit manufacturers are commonly expected to develop products that drill faster and/or longer in these harsher environments. Even though there have been impressive technological advancements in bit design and performance, operators are demanding yet more from the bit. For instance, they may want a bit to drill an entire section as fast as practical which translates into one fast run in a hole size. They may require a precise target TD with low tolerances for error. They may want the perfect bit. More often tha...

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