PDC Bit Articles

Cuttings Conundrum

The Cuttings Conundrum: SplitBlade Enhances Cuttings Evacuation and Improves Efficiency

This article first appeared in the June 2018 Edition of Oilfield Technology. 

Chris Casad, Ulterra Drilling Technologies L.P., USA, discusses how new drill bit designs enhance cuttings evacuation and improve efficiency.

The push to address a longstanding problem has led to a new development in drill bit design.

The problem relates to the commonly held belief that the poor evacuation of cuttings from drilling operations can significantly limit bit performance, and ultimately the rate of penetration (ROP) – a major concern in drilling operations.

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weight on bit WOB

Weight On Bit – WOB

What is Weight on Bit or WOB?

An essential part of the drilling process is adding force to the drill bit in order to successfully break the rock. Weight on the Bit, or WOB, is the amount of downward force exerted on the drill bit provided by thick-walled tubular pieces in the drilling assembly that are known as drill collars. The downward force of gravity on these steel tubes provide force for the drill bit in order to effectively break the rock.

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Launching SplitBlade for Improved ROP Through Cuttings Evacuation

Ulterra Drilling Technologies has proudly launched SplitBlade™ as the new SPL product line. Ulterra’s objective is to bring attention and focus to all of their differentiating technologies and the value they create to customers. This nomenclature will help further cement Ulterra’s reputation as an industry leader in innovation, new technology, and performance in the field. Also, the nomenclature will help with the easy identification of advanced pdc bit technology.

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Counterforce Oil Drill Bit

Ulterra Continues to Expand the Application for CounterForce®

Ulterra Drilling Technologies continues to expand the application for its groundbreaking CounterForce® cutting structure technology.  CounterForce uses the cutting structure to reduce vibrations at the bit, which increases efficiency and reduces bit damage.  Reducing vibration is particularly important on wells which utilize Rotary Steerable Systems (RSS), which are becoming more popular as well planners are pushing the limits on directional difficulty and lateral lengths. 

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