Precise and Repeatable

Digital Dull Bit Grading

The Problems with Dull Bit Grading

► Drilling costs are a major factor in unconventional resource economics

► Bit performance is a major factor in improving drilling time

► Bit grading is an important tool in improving bit design, geometry and overall drilling operations

...dull bit grading is considered an art … mostpeople working at drill sites find it difficult to identifythe exact pattern of bit wear

Dull bit grading today is not as accurate, consistent, repeatable or comparable as it needs to be

What does do?

► Automatically captures all required IADC dull bit

grading requirements digitally

► Catalogues all required data with respect to bit

geometry

► Constructs a high resolution 3D model of each bit

► Measures, analyzes and displays computational

database and filters by► Profile views

► Cutter groupings

► Bit type

► Exports data in standardized format

3D Model View

Bit Model View

Analytics View

The Evolution of

➢ Lower resolution cameras in fixed position

➢ Bits had to be lifted onto turntable

➢ Limited range of bit sizes because of fixed geometry

Version 2Version 1 (prototype)

➢ High resolution camera

➢ Camera rotates around the bit (rail mounted & servo driven), eliminating turntable

➢ Bits are stood up on floor and unit is rolled over bit

➢ Can now handle wide range of bit sizes

Version 2

The Future of

Example - the system could record the general angle of the wear

flat on every cutter

►Could indicate how a bit wears differently due to steering

►Could indicate under operation, how the bit actually

contacts the formation differently as the bit wears

►Could also utilize the system for QA/QC purposes with

new/reconditioned bits

There is flexibility to add additional metrics, as required: