API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling
API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling
Product DescriptionSucker rod is an important part of a sucker rod pumping equipment. Sucker Rod connect with coupling to be a rod string, and up through polished rod connection on the pumping unit or PCP motor, down connection on the pump piston or PCP, its role is to ground the reciprocating movement of the pumping unit horsehead suspension point is passed to the downhole pump or pass the rotation of the PCP motor torque to downhole PCP.
Ordinary sucker rod is manufactured according to API Spec 11B which mainly includes grade C and D. Grade H sucker rod is developed to suit for deep well and larger pumps.
Sucker rod
A string or solid or hollow tubular that is moved by a pump jack at the surface to operate a rod pump at the bottom of the well.
Pony rod
A short rod for spacing out a rod string.
1.Sucker rod size
| SN | Normal size in(mm) | Dia. of coated rod (mm) | Wrench section width (mm) | Wrench section Length (mm) | OD of Male thread step (mm) | Nipple neck length of ascension(mm) |
| 1 | 5/8(16) | 19 | 27 | 28 | 37 | 127 |
| 2 | 3/4(19) | 22 | 29 | 28 | 43 | 127 |
| 3 | 7/8(22) | 25 | 29 | 28 | 45 | 127 |
| 4 | 1(25) | 28 | 39 | 28 | 55 | 127 |
| 5 | 1 1/8(29) | 32 | 43 | 37 | 60 | 127 |
2.Grade and Mechanical Properties
No. | Grade | Tensile Strength | Yield Strength | Percentage Elongation A(%) | Contraction Percentage Of Area Z(%) |
1 | C | 620-795 | ≥415 | ≥13 | ≥50 |
2 | K | 620-795 | ≥415 | ≥13 | ≥60 |
3 | D | 795-965 | ≥590 | ≥10 | ≥50 |
4 | KD | 795-965 | ≥590 | ≥10 | ≥50 |
5 | HL | 965-1195 | ≥795 | ≥10 | ≥45 |
6 | HY | 965-1195 | —— | —— | —— |
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Development HistoryIn 1964, our factory is established;
In 1995, we bought in the first tubing production line;
In 2007, our company is restuctured;
In 2015, we became the supplier for Schlumberger and Haliburton.
API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling API 11B 1 12 Sucker Rod 78 1 14 Sucker Rod Coupling