Sucker Rods
Standard Sucker Rods
Standard sucker rods are used to transfer progressive or rotary motion from the pumpjack to the well pump during oil extraction. The sucker rod is a round bar threaded at both ends. Rods can be equipped with centralizers of different types to prevent rods, couplings and tubing pipes wear, and with scratchers to eliminate paraffin deposits. D-grade sucker rods (according to the API 11B) offer increased structural and anticorrosion properties and surpass the production of famous foreign companies in quality.
| Standard | TU 3665-007-002175515-98 | ||||
| Schedule-size | ШН 5/8" | ШН 3/4" | ШН 7/8" | ШН 1" | ШН 1 1/8" |
| Diameter, mm | 15,88 | 19,05 | 22,23 | 25,40 | 28,58 |
| Length, mm | 8000, 9140 | ||||
| Part-length | Up to 500 mm (at the Customer's request) | ||||
| Adjustable Rods, mm | <500 mm | ||||
| Standard |
API Spec 11B (GOST 31825-2012, GOST 13877-96) |
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| Schedule-size | ШН 5/8" | ШН 3/4" | ШН 7/8" | ШН 1" | ШН 1 1/8" |
| Diameter, mm | 15,88 | 19,05 | 22,23 | 25,40 | 28,58 |
| Nominal Length, mm* | 25(7620), 30(9144) | ||||
| Length, mm | 7518, 9042 | ||||
| Part-length** | Up to 500 mm (at the Customer's request) | ||||
* nominal length is a size measured from the face of the thrust shoulder of the rod to the coupling face, screwed on the pipe nipple.
** length between the faces of the thrust shoulders of the rod.
| Class | Steel Type | Minimum Yield Strength, MPa | Ultimate Strength |
| К | Nickel-molybdenum | 414 | 620...793 |
| C | Manganese | 414 | 620...793 |
| D |
Manganese
Chromium-molibdenum |
586
586 |
793...965
793...965 |
| D Special | Special Nickel-containing Alloy | 630 | 820...990 |
| D Super | Chromium-molibdenum Carbon Steel | 720 | 930...1050 |
Loaded Sucker Rods
Loaded sucker rods are used to optimize the load on the pumpjack.
| Standard |
API Spec 11B (GOST 31825-2012, GOST 13877-96) |
||
| Schedule-size | ШН 1 1/2" | ШН 1 5/8" | ШН 1 3/4" |
| Diameter, mm | 38,1 | 41,28 | 44,45 |
| Schedule-size of the Attached Rod | ШНУ 3/4 | ШН 7/8 | ШН 7/8 |
| Length, mm | 8000 | ||
| Mass, kg | 70 | 80 | 94 |
| Class | Steel Type | Minimum Tensile Strength, MPa |
| 1 | Carbon | 448 |
| 2 | Alloy | 620 |
Jointed Sucker Rods
Jointed sucker rods are used to prevent threaded joints of the sucker-rod string from unscrewing during the oil extraction made with pumpjacks. The torque from the motion of the rod string is compensated by the turn of the jointed rod components inside the coupling.
| Standard | TU 3665-027-002175515-02 | |||
| Schedule-size | ШНШ.М 3/4 | ШНШ.М 7/8 | ШНШ.М 3/4х7/8 | ШНШ.М 7/8х1 |
| External Diameter, mm | 45 | 53 | 53 | 55,6 |
| 53 | ||||
| Length, mm | 495 | 507 | ||
| Tensile Load, kgf | 14000 | 20000 | 20000 | 20000 |
| 20000 | ||||
| Schedule-size of the Attached Rod | ШН 3/4 | ШН 7/8 | ШН 3/4; ШН 7/8 | ШН 7/8; ШН 1 |
