Drying screw dual-dedicated types eVN5 designed to pump out ranged fluids of increased viscosity from oil wells.
the structure of the symbol
2 ech5 12 1000 b5
2 -the pump is equipped with a six-pole electric motor with a speed of 1000 rpm or gearbox (when The absence of the number 2 in the designation pump is equipped with a four pole engine with a rotation frequency of 1380 rpm).
Ehh5 - the designation of the pump:
E - a drive from a submersible engine;
B - screw;
N - pump;
5 - a pump group for a column of casing pipes 146 mm with a minimum inner diameter of 121.7 mm.
12 - feed, m 3 /day
1000 - pressure, m. />
B5 -climatic execution and category of accommodation in accordance with GOST 15150-69.
parameters of the pumped environment
Creature liquid-a mixture of oil, associated water and oil gas with the following characteristics:
| Kinematic viscosity, m 2 /s, no more than |
1x10 -3
|
maximum content of associated water, % |
99 |
The content of free gas at the technique of the pump, by volume, %, no more than |
50 |
Mass concentration of solid particles, g/l, no more |
0.8 |
Microstability of particles, HRC, no more |
55 |
The temperature of the liquid at the technique of the pump, o s, no more than |
110 |
|
| The pump consists of a base with a drive shaft and two pair of working organs with cutting screw surfaces of different directions, the screws of which are interconnected and a drive shaft using eccentric couplings. Submarine of the formation fluid to the RO is carried out in parallel from the opposite ends of the pump, so that the movement of the liquid through the channels of the RO occurs towards a friend | to a friend, and the axial efforts in the upper and lower pairs are balanced. In the pressure chamber located between the working pairs, the flows are mixed and the gap between the inner surface of the pump body and the outer surfaces of the upper stator are entered in the TCT. The main advantage of such a scheme is increased reliability due to the almost complete unloading of the axial support of the pump. |
|
Consolidated characteristic of single -naval submersible pumps of the EVN5 type with a feed of up to 25 m 3 /day |
 Consolidated characteristic of single -naval submersible pumps of the EVN5 type with a feed of over 25 m 3 /day |
| Mark | Feed, m³/day | Pressure, MPa | Rotation frequency, rpm | Pump power, kW | The length of the pump l, mm | The mass of the pump, kg |
| EVN5-16-1200 | 16 | 12 | 1500 | 4.5 | 3490 | 105 |
| EVN5-25-1000U | 25 | 10 | 1500 | 5.5 | 4290 | 114 |
| 2EVN5-12-1000 | 12 | 10 | 1000 | 4,2 | 3890 | 110 |
| EVN5-12-1500 | 12 | 15 | 1500 | 5.4 | 3890 | 112 |
| EVN5-16-1500 | 16 | 15 | 1500 | 6.5 | 3890 | 111 |
| EVN5-25-1500U | 25 | 15 | 1500 | 8.1 | 4590 | 128 |
| EVN5-25-1700 | 25 | 17 | 1500 | 9 | 4590 | 128 |
| EVN5-63-1500 | 63 | 15 | 1500 | 22.5 | 4860 | 155 |
| EVN5-100-1000 | 100 | 10 | 1500 | 19 | 4140 | 136 |
| EVN5-100-1200 | 100 | 12 | 1500 | 23 | 4440 | 144 |
| 2EVN5-50-1200 | 50 | 12 | 1000 | 16,1 | 4440 | 144 |
