Product Description
Description/Tech Specs
The Stinger is produced using our HPHT synthetic diamond production process. The Stinger family of PDC diamond cutters do not have a flat cutting surface like your typical PDC cutter. Instead they are built with a pointy tip. Designed to concentrate as much point-load on the cutter as possible.
Specifications Description
|
Attribute |
Specification Details |
|
Material |
Premium Polycrystalline Diamond Compact (PDC) |
|
Diamond Layer |
Ultra-thick (2x standard thickness) for maximum impact absorption |
|
Geometry |
Conical/Pointed tip for high-point load concentration |
|
Bonding |
Optimized tungsten carbide substrate for superior thermal stability |
|
Customization |
Available in various diameters and tip angles for specific formations |
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Product Specifications
|
Product No. |
Diameter (mm) |
Height (mm) |
Diamond thickness/mm |
TC Chamfer/mm |
|
1319 |
13.44±0.03 |
19.05±0.05 |
6.5±0.02 |
0.76±0.05 |
|
1420 |
14.30±0.03 |
20.00±0.05 |
6.5±0.02 |
0.76±0.05 |
|
1621 |
15.88±0.03 |
21.00±0.05 |
7.9±0.02 |
0.76±0.05 |
|
1925 |
19.05±0.03 |
25.40±0.05 |
9.8±0.02 |
0.76±0.05 |
|
2535 |
25.40±0.03 |
25.00±0.05 |
10.9±0.02 |
0.76±0.05 |
Reminder: other size can be customized
Features/Benefits
So what's the big deal with making a pointed tip PDC cutter? It changes the way that the rock reacts to your drill bit. Instead of shearing the rock like a traditional flat PDC, these concentrated on "point-load" cracking the rock.
- Ultrathick Diamond Sizes – By increasing the thickness of the diamond, we were able to massively increase the "wear volume" of the tool. This allows the tool to have a longer effective life and keeps it pointed after running thousands of feet through abrasive formations(sandstone, carbonate, etc).
- Less Friction & Heat – Think about it. Less cutting surface = less rock contact = less frictional heat. This prevents the diamond from overheating and breaking down.
- Point Load – When maximum WOB is applied to the Stinger PDC cutter, it concentrates ALL of that force onto a pinpoint. This allows you to punch deep cracks into the formation with significantly less force than you would with a flat PDC.
Increased Performance (Uses)
Stinger diamond cutters are ideally used in the center of a PDC bit or in locations of higher stress.
- Center of Bit – When used in the center of a PDC table, the cutters help eliminate lateral vibrations (bit whirl). This allows for a cleaner hole and less random shock loads to the remaining cutting structure.
- Abrupt hardness changes – Transition zones are where you will notice the biggest improvements with these cutters. They can take heavy impact loads that would normally decimate a flat PDC table.
- Increase ROP – The faster you can crush rock, the quicker you can reach Total Depth. Punching cracks into the formation, instead of purely shearing it, allows the formation to give way much quicker.
Made to Order
All Stinger PDC diamond cutters are sent through rigorous non-destructive evaluation to check for potential structural failures. We also offer customized engineering to suit the "drillability" of your formation. No two wells are created equal, that is why we can engineer the grain size of the diamond, the interface geometry, and how deep we "liquefy" the diamond.
PDC Cutter Showing
FAQ
Q: My formation has "interbedded" layers. Will these cutters work?
A: They were made for this application! Since the cutter has a pointy tip it can act as a "shock absorber" for hard inclusions that your drill bit may encounter. This will prevent large chunks of the cutter from chipping away.
Q: Can these cutters be put in any style of PDC bit?
A: Absolutely. While we recommend using them in the center of the bit, or as "plowing" elements in heavy-duty bits; they can be designed to fit nearly any application. They will drastically increase the service life of your PDC bit.
Q: If you increase the diamond size, doesn't that weaken the bond to the tungsten carbide?
A: Increasing the grain size does not affect the strength of the bond. Our process creates a molecular level bond between the ultra thick diamond layer and the tungsten carbide. You will not experience delamination from high heat levels.
