DWC/C™ is the original Threaded and Coupled (T&C) solution for casing rotation applications that exceed API Buttress torque capabilities. Its validated performances make DWC/C™ the product of choice for production casing in the shale plays and Drilling with Casing.
Every technical feature has been first proven in the lab and field history supports that DWC/C™ benefits have been successfully proven in the field.
APPLICABLE RANGE
- Available in sizes from 3 1/2″ to 13 3/8″
- Standard, alternative and special drifts
- Carbon, Martensitic steel J-55, K-55, L-80, P-110, Q125
- Yield strengths from 55 ksi to 125 ksi
APPLICATIONS
Suitable for onshore application, when performance required is the same as API buttress with the addition of rotational torque capabilities:- Production casing
- Drilling with casing
PERFORMANCE
- Up to 100% compression resistance
- API Buttress pressure resistance
- API Buttress external pressure resistance
- Enhanced fatigue life
- High bending resistance
BENEFITS
- Simple, reliable and easy running
- Suitable for automated rig handling systems
- Clear and repeatable make-up charts
- High torque capability for rotating the string during installation
- Widely adopted by end-users as the best alternative to API Buttress connections
OPTIONS
- Available with high torque option: DWC/CTM – HT
- Available with increased coupling OD for higher tension and pressure ratings: DWC/CTM – PLUS
- Available with internal coupling shoulder option to increase running efficiency: DWC/CTM – IS
- Available with increased coupling OD and internal shoulder: DWC/CTM – IS PLUS
- Optional Teflon® seal ring