Customer Challenge
The Customer focused on drilling the complete 16” section in one PDC bit run.
- The parameters called for high ROP despite the potential presence of chert and heavy minerals throughout the end of the section.
- The previous well used a TCI bit design achieving 46.6 ft/hr ROP average across the field.
Historical trials with PDC technology from alternative suppliers resulted in lower ROP, damaged bits and uncompleted drilled sections.
Varel Solution
VAREL proposed a specific PDC design leveraging the VOYAGER platform with TRIFORCE™ technology.
Design optimization using our PDC Designer and DIG-IT 3DTM software for optimal simulation and shaped cutter positioning.
- Setting: TRIFORCE (2nd row) set in a leading redundancy with the main PDC of the trailing blade. Purpose: Have the TRIFORCE Scratching- Gouging-crushing (weakening the rock) followed by standard cutters shearing the rock around the groove.
Customer Value
1st Job (Motor-Assts):
- Achieved 72% increase in ROP as compared to previous PDC record performance.
- Achieved 38% increase in ROP as compared to field / application average ROP (including all bit types).
2nd Job (RSS):
- Achieved 78% increase in ROP as compared to field/application average ROP (including all bit types).
- ROP Field record run with 83.4 ft/h (including all bit and drive types).
- Achieved 33% increase in ROP as compared to previous PDC record performance.