Fixed cutter bit dull grading manual

 · IADC dull grading is closely associated with its bit classification systems, and the general formats for fixed-cutter bit and roller-cone bit dull grading are similar. There are important differences that must be taken into account and the two approaches are not interchangeable. 7th- 8th November, Karachi. Pakistan Agenda Morning Session Fixed Cutter Bit Fundamentals HDBS FC New Technologies Break Roller Cone Bits Fundamentals HDBS RC New Technologies Dull Grading FC RC. Afternoon Session Drilling Drill Bit Optimization Break Drilling Problems Remedies Open Discussion Closing. General Cutting Mechanics . Chapter A - Bit Classification and Grading A-1 First Revision To The IADC Fixed Cutter Dull Grading System Contributors Summary Abstract Introduction System Enhancements Application Of Dull Grading System Conclusion References Acknowledgements A2 - IADC Fixed Cutter Classification System Development Of A New IADC Fixed Cutter Drill Bit.

Dull Grading-overview. IADC fixed cutter dull grading system. Developed by IADC in revised Applied for all fixed cutter bits. PDC. Natural Diamond. Impregnated Diamond. Bit record- in Old dull grading system (before ) [example from Malong SG appraisal well] Not descriptive. T- teeth B- bearing G- gauge. Why??. The Dull Grading System Chart adopted by IADC includes all codes necessary to dull grade roller cone bits and fixed cutter bits. The chart describes eight factors on drill bits. The first four spaces describe the “Cutting Structure”. The fifth space (“B”) refers to “Bearing Seals” and does not apply to fixed cutter bits. A-1 First Revision To The IADC Fixed Cutter Dull Grading System A Contributors A Summary A Abstract A Introduction A System Enhancements A Application Of Dull Grading System A Conclusion A References A Acknowledgements A A2 - IADC Fixed Cutter Classification System A

AP Bits and Holemaking IPM IADC Bit Dull Grading Code The Washed Out Bit WT - Worn Cutters NO - No Dull Characteristics Fixed Cutter Bits. A AP The system followed to evaluate the bit is called the IADC dull Fixed cutter bit has no moving parts; the cutting structures and bit. Dull Grading-overview. IADC fixed cutter dull grading system. Developed by IADC in revised Applied for all fixed cutter bits. PDC.