Low Torque Gage Pad Design
Rounded Edges
Low Friction Carbide
Ring Claw
TM
Cutter Technology
Patented Ring Claw cutters, compared to standard PDC cutters, have triple the volume of diamond, making them more abrasion resistant, and up to four times more impact resistant.
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C-Scan Transducer
Computer Generated Graphical Representation of C-Scan Readings
Cutter Rake Angles
Back Rake Side Rake
Side Rake Back Rake Bit Center
Potential PDC Applications
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Long shale, mudstone or claystone sections, sands, chalk, limestone, dolomite, salts and anhydrite Gumbo shales with oil based mud Researched sandstone intervals Absence of hard, well cemented, angular abrasive sands Absence of chert, pyrite, quartzite Motor/turbine drilling (high RPM)
Summary
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PDC cuts rock with a shearing action Cutters exist in a variety of shapes/sizes u 19mm, 13mm, 10.5mm, 8mm Consider: Blade, cutter, & gauge layouts Consider nozzle configurations, hydraulics PDC is prone to damage from vibrations Geological knowledge is essential for bit selection
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Thank you
The FM2000 Series
Matrix body technology utilizing Ring Claw cutter technology maximizes performance.
The FS2000 Series
New steel body technology advances PDC bit performance and efficiency.
Scalloped bottom hole pattern is created by tracking cutters
Impact Arrestors
Impact Arrestors provide stabilization to both the axial and lateral modes of vibration. The impact arrestors are positioned directly behind a preceding PDC cutter.
PDC Cutting Action = Shearing
Asymmetric Blade Layout
Spiraled Blades & Gage Pads
Straight Blades and Pads
Spiraled Blades and Pads
Cutter Layouts
Standard Set 50 Cutters
Deep Ring Claw Cutter Technology
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The next step beyond Ring Claw Little or no impact to the diamond table Increased life Increased reusability No apparent sacrifice in performance
Profile PDC Cutters Gauge Junk Slot Bit Breaker Slot API Threaded Pin
FM / FS2000: F.A.S.T. Matrix / Steel
F orce Balancing A symmetric Blade Layout S piraled Blades T racking Cutters
Fixed Cutter Bits
Lesson Outline
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Nomenclature Cutting Action Blade, cutter, & pad layouts Bottom hole patterns Cutter Technology
Fixed Cutter Bit Features
Application of PDC Bits
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Geological knowledge essential Offset well information & bit records Enhanced selection process using offset well log Analysis / GeoMechanics Bit selection should meet actual criteria necessary to fail specific rock types and satisfy cleaning requirements
Track Set 50 Cutters
Bottom Hole Patterns
Standard Cutter Bottom Hole Pattern Tracking Cutter Bottom Hole Pattern
Little resistance to lateral forces with the standard cutter layout