Texas Steel Double Shoulder (TSDS) High Torque connections are built to provide the additional torque and torsional strength for your drilling application.
TSDS High Torque Connections
Your Drilling Advantage
Enhanced Performance - Increases drilling performance through improved hydraulic capacity and exceptional torsional strength.
Versatile Compatibility - Interchangeable with API industry standard threads and certain other double shoulder connections.
Superior Torsional Strength - Torque capacity is 40% to 60% greater than standard API connections for comparable size drill pipe.
Exceptional Value - Providing lower initial product cost, lower cost of rework, reduced material cost and longer operational life.
Reduced Rig Time - Minimal make-up turns equal to API and special handling tools are not required.
TSDS 42
Drill Pipe Performance Characteristics
Pipe Body
| New-API | New 95%RBW | Premium | |
|---|---|---|---|
| OD(in) | 4.500 | 4.500 | 4.365 |
| Wall Thickness(in) | 0.337 | 0.320 | 0.270 |
| ID ref.(in) | 3.826 | 3.860 | 3.826 |
| Calculated Plain End Weights(lbs/ft) | 14.98 | 14.29 | 11.81 |
| Note: Premium properties are calculated based on uniform OD and wall thickness. | |||
| Cross Sectional Area Pipe Body (in2) | 4.407 | 4.204 | 3.469 |
| Cross Sectional Area OD (in2) | 15.90 | 15.90 | 14.97 |
| Cross Sectional Area ID (in2) | 11.50 | 11.70 | 11.50 |
| Section Modulus (in3) | 4.271 | 4.104 | 3.347 |
| Polar Section Modulus (in3) | 8.543 | 8.209 | 6.694 |
| Torsional Yield (ft-lbs) | 55,453 | 55,286 | 43,450 |
| Tensile Yield (ft-lbs) | 595,004 | 567,542 | 468,297 |
| 80% Torsional Yield (ft-lbs) | 44,362 | 44,629 | 34,760 |
| Internal Pressure Yield (psi) | 17,693 | 19,209 | 16,176 |
| Collapse Capacity (psi) | 16,773 | 15,116 | 10,964 |
Drill Pipe Assembly with TSDS42 Tool Joint
| API Adjusted Weight (lbs/ft) | 17.86 | ||
| 95% Adjusted Weight (lbs/ft) | 17.25 | ||
| Premium Adjusted Weight (lbs/ft) | 14.88 | ||
| Assm Length Shld'r to Shld'r approx. (ft)) | 31.50 | ||
| Displacement Open Ends approx. (gal/ft) | 0.273 | ||
| Fluid Capcity approx. (gal/ft) | 0.573 | ||
Tool Joint
| TSDS42 CONNECTION | OD (in) | 5 1/4 | |
| ID (in) | 2 13/16 | ||
| Tool Joint with a Material Yield Strength of 135,000 pst | |||
| Pin Tong Length (in) | 9 | ||
| Box Tong Length (in) | 12 | ||
| Torsional Yield New (ft-lbs) | 41,980 | ||
| Recommended Make-Up Torque New (ft-lbs) | 25,180 | ||
| Recommended Make-Up Torque Premium (ft-lbs) | 25,540 | ||
| Balance OD (in) | 5.257 | ||
| Pin Tensile Yield (lbs) | 891,100 | ||
| Approx. Tension to Yield Pin at Reccomended Make-Up Torque New (lb) | |||
| 563,400 | |||
| Approx. Tension to Yield Pin at Reccomended Make-Up Torque Premium (lb) | |||
| 640,000 | |||
| Tool Joint/Drill Pipe torsional Ratio (New Pipe) | 0.76 | ||
| Tool Joint/Drill Pipe torsional Ratio (Premium Pipe) | 0.83 | ||
| Min OD for premium class (in) | 5.094 | ||
Technical Notes
| 1. All data is calculated based on standard methods. No safety factor is applied. |
| 2. Premium Class drill pipe data is based on a minimum wall thickness equal to 80% of new drill pipe nominal wall thickness, reference API RP7G. |
| 3. Specified tool joint OD is smaller than the standard API tool joint for 4-1/2 drill pipe. New and/or used tool joint size might not be suitable for hoisting the drill string with a bottle neck elevator. User is advised to contact their elevator manufacturer for elevator hoist capacity rating versus tool joint OD. |
| 4. The technical information contained herein is for reference purposes only. TSC Drill Pipe does not assume responsibility for results obtained through the use of technical information, no warrenty is expressed or implied. User is fully responsible for the accuracy and suitability of use of the technical information and application of appropriate safety factor. |