Schlumberger

To Find Oil, You Have to Drill
Part 8

Date: 10/13/2011

Drilling—Optimizing Bit Design

The rate of penetration, or the speed at which a well is drilled while maintaining good directional control, is largely dependent on the efficiency at which the drill bit is able to cut or grind the rock. This in turn depends on the weight applied to the bit, the rate of its rotation, and the manner in which the bit addresses the rock.

IDEAS system proves to be integral

The design engineers at Smith Bits use the Integrated Dynamic Engineering Analysis System (IDEAS) to understand how the cutting structure interacts with the rock and its behavior as an integral part of the total drilling system. Even small changes in cutter position and orientation can have significant effects on drilling performance and reliability. Using IDEAS, the designer can arrive much more quickly at an optimal design and then certify the performance capabilities of each bit through a simulation and modeling methodology that takes into account not just the lithology [http://www.glossary.oilfield.slb.com/search.cfm] but also the drillstring, drive system, bottomhole assembly, and total system influence on drillbit behavior.

Latest tools use broad range of drill bits

By combining the Smith engineering workflow with information detailing the exact steering process for the latest Schlumberger rotary steerable tools, a new range of drill bits matched to both drilling environment and rotary steerable system can be developed. 

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To Find Oil, You Have to Drill
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