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Innovating While Drilling®

Drill bit innovations target major barriers to ROP, durability

Although a drill bit is but one component of a large and complex drilling system, it can have an outsized impact on the efficiency of a drilling operation. “While the amount of money spent on drill bits may be less than 1% of the total cost of the well, it can really be argued that no single component contributes more to the overall drilling performance,” said Wiley Long, Bits and Drilling Tools Product Champion at Smith Bits, a Schlumberger company...

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Churchill Drilling Tools launches dartless version of self-filling float

Churchill Drilling Tools has introduced a dartless version of its self-filling float. The original dart-activated version allows the string to self-fill while running in hole and can reduce trip time by 30% to 50% compared with regular floats, according to the company. The float remains dormant while it’s run in hole and is later activated with a dart. In late 2017, the company launched the SFF Trigger, a dartless version of the self-filling float. Like the original self-filling float, the SFF Trigger remains dormant while it’s run in hole. However, a new automatic activation system is triggered when the float reaches a preset depth and pressure. In this video from the 2018 SPE/IADC Middle East Drilling Technology Conference in Abu Dhabi, Nicholas Kjaer, General Manager-Middle East for Churchill Drilling Tools, explains how the automatic activation system works, as well as the benefits of dartless activation...

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