API 11AX sucker rod pump
Description of oil pump
For this type of pump, the barrel is put in the well to the designed depth with tubing.
then put the plunger into the barrel with sucker rod. Given the tubing size, the bore of the tubing pump is larger than that of the rod pump, so the pump rate is higher. According to seating mode, the rod pump can be divided into three types: Stationary Heavy Wall, Cup Seating, Tubing pump, THM
pump (Stationary Heavy Wall Mech. Seating, Tubing Pump) and THD pump.
Specification table of API sucker rod pumps:
| Type | Main parameters |
| Dia (mm) | Length pump barrel(m) | Length of stroke(m) | Length of extension(m) | Tubing pipe thread | Connect of sucker rod |
| Rod pump | Ø31.8 | 2.1 2.4 2.7 3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.7 6.0 7.3 8.0 9.1 | 1.5- 6 | 0.3 0.6 0.9 | 2-3/8” | CYG16 |
| Ø38.1 | 2-3/8” 2-7/8” | CYG19 |
| Ø44.45 | 2-3/8” 2-7/8” | CYG19 |
| Ø57.15 | 2-7/8” | CYG19 |
| Tubing pump | Ø31.8 | 1.5- 7.8 | 0.3 0.6 0.9 | 2-3/8” | CYG16 |
| Ø38.1 | 2-3/8” 2-7/8” | CYG16 |
| Ø44.45 | 2-3/8” 2-7/8” | CYG16 |
| Ø57.15 | 2-7/8” | CYG19 |
| Ø69.85 | 3-1/2” | CYG22 |
| Ø95.25 | 4-1/2” | CYG25 |
Pump designation:
1) RHAM: Stationary Heavy Wall Barrel, Top Anchor, Mechanic Seating, Rod Pump
2) RHBM: Stationary Heavy Wall Barrel, Bottom Anchor, Mechanic Seating, Rod Pump
3) RHAC: Stationary Heavy Wall Barrel, Top Anchor, Cup Seating, Rod Pump
4) RHBC: Stationary Heavy Wall Barrel, Bottom Anchor, Cup Seating, Rod Pump
5) RHT: Traveling Heavy Wall Barrel, Bottom Anchor, Rod Pump
6) RWA: Stationary Thin Wall Barrel, Top Anchor, Rod Pump
7) RWB: Stationary Thin Wall Barrel, Bottom Anchor, Rod Pump
8) RWT: Traveling Thin Wall Barrel, Bottom Anchor, Rod Pump
9) RSA: Stationary Thin Wall Barrel, Top Anchor, Soft-packed Plunger, Rod Pump
10) RSB: Stationary Thin Wall Barrel, Bottom Anchor, Soft-packed Plunger, Rod Pump
11) THM: Heavy Wall Barrel, Mechanic Seating, Tubing Pump
12) : Heavy Wall Barrel, Cup Seating, Tubing Pump
Company Information
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