DWC/C™

DWC/C™


DWC/C™ is the original Threaded and Coupled (T&C) solution for casing rotation applications that exceed API Buttres​s 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
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