CTX™ Extra-Torque Connection
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The CTX™ connection combines a secondary shoulder with other design features to provide over 70% more torque than standard API connections. The extra torsional strength improves performance in deep or highly deviated wells and meets the demands of longer laterals.
Advantages
- Fully interchangeable with XT™ connections (verified by independent testing)
- Improved fatigue-resistant thread form
- Higher torque than API double-shoulder connections
- Available in standard 120 ksi or 130 ksi material for even more torque
- Smooth, larger ID for better hydraulics and hole cleaning
Performance data
| Connection | Tool joint OD (in) | Tool joint ID (in) | Recommended make-up torque (ft-lbs) | Tensile strength (lbs) | Torsional strength (ft-lbs) |
|---|---|---|---|---|---|
| CTX 38 | 4 7/8 | 2 7/16 | 22,700 | 707,400 | 37,800 |
| CTX 39 | 4 7/8 | 2 11/16 | 23,400 | 686,200 | 39,200 |
| CTX 40 | 5 1/4 | 2 11/16 | 31,300 | 877,900 | 52,163 |
| CTX 46 | 6 1/4 | 3 1/4 | 45,600 | 1,151,000 | 76,000 |
| CTX 50 | 6 5/8 | 3 3/4 | 50,000 | 1,167,900 | 83,400 |
| CTX 54 | 6 5/8 | 4 | 54,900 | 1,193,600 | 91,500 |
| CTX 57 | 7 | 4 1/4 | 61,300 | 1,300,600 | 102,200 |
Connections
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CET® High-Torque Connection
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CDS® Double-Shoulder Connection
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API Connections
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