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TECH REPORT
TEXAS, USA
Environment
Land
Lithology
Interbedded limestone/
sandstone/shale
Unconfined compressive15,000 psi [103.4 MPa]
strength (UCS)
Field Test of StingBlade Bit Confirms 23% Higher
Build Rates, Reduced Torque in Interbedded Curve
Conical diamond element bit increased build rates
while maintaining better toolface control, Texas
Background
3,025
The StingBlade* conical diamond element bit
was tested for build rate and toolface control
against a conventional PDC bit in an interbedded
curve application.
Footage, ft
StingBlade conical diamond element bit
Depth, ft
Technologies
PDC bit
StingBlade bit
3,075
–180
Distance, ft
Field testing confirmed that the StingBlade
bit drilled at a 23% higher build rate than
the PDC bit.
–90
0
90
180
Gravity tool face
PDC bit
0
2,000
4,000
6,000
Torque, ft.lbf
StingBlade bit
The StingBlade bit also completed the test with greater toolface
control (left) and smoother torque (right) compared with the PDC bit.
slb.com/StingBlade
­*Mark of Schlumberger. © 2014 Schlumberger. All rights reserved. 14-BT-0075