Dynamic cylindrical sand control pump adopts the pump structure, tubing go down the well with outer drum and joint, and pump go down the well with sucker rod.
Features:
When the pump works, the cylinder moves up and down, keep stir well liquid and sand pump is not easy to deposit and produce card phenomenon.
Fixed valve and delivery valve are all open valve, fluid of local resistance is small, more conducive to the sand in the well liquid discharge
Sand sinking process, cylinder can't fall back into the pump, they are in an outer tube and Jane between the annular channel sink to the pump under the following sub, can effectively prevent sand CARDS.
The pump rod stability, not easy long stroke pumping and used in heavy oil Wells
MAIN SPECIFICATIONS AND PARAMETERS
Basic type |
Pump dia. |
Outer dia. Of coupling oil tubing（mm） |
Plunger stroke range（mm） |
Pump constant |
Dia. Of connecting sucker rod（mm） | |
|
Nominal dia. (mm) |
Basic type | |||||
|
25-150 |
38 |
38.1 |
73 |
1.5-3.5 |
1.63 |
19 |
|
25-175 |
44 |
44.5 |
2.19 |
19 | ||
|
25-225 |
57 |
57.15 |
3.54 |
22 | ||
|
25-275 |
70 |
69.85 |
88.9 |
5.54 |
22 | |