An integral semi-flush connection suitable for large-diameter surface casing, intermediate casing, horizontal liners, extended reach strings and drilling liners.
Special applications include drilling with casing, slotted liners for geothermal wells and rotation-while-bending during wash-down and cementing.
Features
- Available in sizes from 4" to 18 5/8".
- High compression rating provided by the reverse angle stab flank of the dovetail threads makes the Wedge 521® suitable for the more severe compression applications.
- Compression rating is typically 80–89% of the pipe body, and is usually higher than the tension rating.
- Thread form provides 100% pipe body internal yield and collapse strength.
- Excellent for large diameter pipe, the dovetail thread eliminates thread pull-out, even on thin wall pipe.
Options
Applications
- Deep Water
- Shallow Water
- Shales
- Horizontal and extended reach wells
- Casing while drilling
- Thermal (SAGD & CSS)
- Geothermal
- Intermediate casing
- Production casing and liners
- Surface Casing