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Description
The heavy Weight Drill Pipe (HWDP) was developed to provide a gradual transition from the drill collars to the drill pipe.
This HWDP helps to prevent stress concentration at the top of the drill collar. It also allow drilling at higher rpms, reducing torque and differential pressure sticking. The HWDP is intended primarily for directional drilling. As it bends easily, it simplifies directional control and minimizes connection fatigue problems common to high-angle or horizontal drilling.
The reduced number of pipe failures and increased drill-stem service also make HWDP appropriate for some straight-hole applications. Various combinations of HWDP, drill collars, and standard drill string can be created to meet the challenge of severe drilling conditions.
We can supply integral HWDP from 2-7/8” to 6-5/8”. Also we can supply friction welded HWDP, which is assembled with AISI 1340 steel pipe and AISI 4145H or 4137H tool joints.
Parameter
| OD | Nominal weight | Calculation of weight | Grade | W.T | |||
| in | mm | lb/ft | kg/m | in | mm | ||
| 2 3/8 | 60.3 | 6.65 | 6.26 | 9.32 | E,X,G,S | 0.280 | 7.11 |
| 2 7/8 | 73.0 | 10.4 | 9.72 | 14.48 | E,X,G,S | 0.362 | 9.19 |
| 3 1/2 | 88.9 | 9.50 | 8.81 | 13.12 | E | 0.254 | 6.45 |
| 3 1/2 | 88.9 | 13.30 | 12.31 | 18.34 | E,X,G,S | 0.368 | 9.35 |
| 3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | E | 0.449 | 11.40 |
| 3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | X,G,S | 0.449 | 11.40 |
| 4 | 101.6 | 14.00 | 12.93 | 19.26 | E,X,G,S | 0.330 | 8.38 |
| 4 1/2 | 114.3 | 13.75 | 12.24 | 18.23 | E | 0.271 | 6.88 |
| 4 1/2 | 114.3 | 16.60 | 14.98 | 22.31 | E,X,G,S | 0.337 | 8.56 |
| 4 1/2 | 114.3 | 20.00 | 18.69 | 27.84 | E,X,G,S | 0.430 | 10.92 |
| 5 | 127.0 | 16.25 | 14.87 | 22.15 | X,G,S | 0.296 | 7.52 |
| 5 | 127.0 | 19.50 | 17.93 | 26.71 | E | 0.362 | 9.19 |
| 5 | 127.0 | 19.50 | 17.93 | 26.71 | X,G,S | 0.362 | 9.19 |
| 5 | 127.0 | 25.60 | 24.03 | 35.79 | E | 0.500 | 12.70 |
| 5 | 127.0 | 25.60 | 24.03 | 35.79 | X,G,S | 0.500 | 12.70 |
| 5 1/2 | 139.7 | 21.90 | 19.81 | 29.51 | E,X,G,S | 0.361 | 9.17 |
| 5 1/2 | 139.7 | 24.70 | 22.54 | 33.57 | E,X,G,S | 0.415 | 10.54 |
| 6 5/8 | 168.3 | ||||||
Company
Shengqing Petroleum Equipment Co.,Ltd is an enterprise of production and sales of petroleum machinery equipment and accessories.It is located at Yellow River Delta,Shandong Dongying Industrial Development Zone,where the second largest oilfield –Shengli Olifield located.
Shengqing mainly manufactures and sells Oil Production Equipment,Drilling Components and Downhole Tools,and other Oil Chemical products,etc.Shengqing possesses the manufacturing facilities of forging ,welding,machining,heat treatment,assembly,pressure testing and painting.The products have been exported to the US,Iran,Canada,Sudan,Russia,Algeria and Syria,etc.
Our company has established a term with rich experienceand technology and modern enterprise system,stricky implements scientific management and quality system to make the perfect products and wonderful service.
drill pipe
