Forced Gas Lifting Oil Production Outfit
I. System Main Parts
Forced gas lifting oil production outfit mainly includes: High-pressure gas source device, control cabinet, gas transmission line and oil production device.
II. Connection of parts
Connection of all parts is as shown in the figure。
III. Working Principle
If high-pressure gas source device generates a high-pressure gas, when forced water discharge is being carried out, high-pressure gas will enter the under-well oil production device via gas transmission line. After oil liquid is discharged, high-pressure gas will be emitted via gas transmission line, while this will be circulated to lifting crude oil from under-well to a destination on ground.
IV. Movement Features
(1) The structure of under-well oil production device is easy, and there are no moving parts, so no sand blocking, airlock or mechanical damages etc. will occur. It adopts corrosion resistance material, resulting in a strong adaptability to medium, which is stable in operation.
(2) Gas source upper the well only needs regular maintenance, which adopts intermittent operation, with a long service life.
(3) High pressure gas is generated by high-pressure gas source, and enters oil production device via gas transmission line, lifting oil level to ground, After the lifting is completed, the gas is exhausted via gas transmission line to another well or a gas dealing device.
(4) The gas transmission line adopts continuous stainless steel hose, so that gas circulates in an enclosed way, without contacting with the outside or gas at well bottom, which is safe, environment-protective and reliable.
(5) Oil production liquid route is as shown in the figure.
V. System Reliability
(1) System overall heat resistance could reach up to 350℃;
(2) Oil production device is simple in structure, and would not produce any sand jam, airlock or mechanical injury, while under-well repair cycle is above 5 years; well head adopts simple devices and static seal, without any outflow of oil liquid, nor ground pollution;
(3) One-source & multiple-well control: One set of control equipment as well as gas source equipment is shared by multiple wells, which is collective control and management, making best use of high pressure gas source.
V. Adaptable Mediums
Forced gas lift complete set of oil production system adapts to the lifting of crude oil in deep wells such as straight wells, inclined wells and horizontal wells etc.
VII. Technical Parameters
1. High-pressure gas sources
|
Model |
Flow Rate (m3/min) |
Pressure (Bar) |
Power (Kw) |
Number of Compression Stage |
|
WM0.6-60 |
0.6 |
60 |
7.5 |
3 |
|
WM1.5-60 |
1.5 |
60 |
11 |
3 |
|
WM1.0-80 |
1.0 |
80 |
11 |
3 |
|
WM1.0-100 |
1.0 |
100 |
15 |
4 |
|
WM1.5-100 |
1.5 |
100 |
18.5 |
4 |
|
WM1.5-150 |
1.5 |
150 |
30 |
4 |
|
WM2.0-150 |
2.0 |
150 |
37 |
4 |
2. Control cabinet
|
Model |
Power (Kw) |
Voltage (V) |
Ball Valve Type |
Control Mode |
Control Mode |
|
380/1/20 |
7.5-30 |
380 |
L·T type pneumatic ball valve |
Flow, time control |
One source multiple wells |
|
380/2/40 |
11–37 |
380 |
L·T type pneumatic ball valve |
Flow, time control |
3. Gas transmission line
|
Specification |
Wall Thickness(mm) |
Max. Continuous Length (m) |
Materials |
Pressure(MPa) |
|
3/8" |
1.25/1.5 |
5000 |
316L |
50 |
|
1/2" |
1.25/1.5 |
5000 |
316L |
50 |
|
5/8" |
1.5/2 |
5000 |
316L |
50 |
|
3/4" |
1.5/2 |
5000 |
316L |
50 |
4. System parameters
|
Model |
Flow Rate (m3/min) |
Pressure (Bar) |
Displacement (m³/d) |
Power (Kw) |
Pump Setting (m) |
Number of Compression Stage |
|
WM0.6-60 |
0.6 |
60 |
8.6 |
7.5 |
500 |
3 |
|
WM1.5-60 |
1.5 |
60 |
21.5 |
11 |
500 |
3 |
|
WM1.0-80 |
1.0 |
80 |
9.6 |
11 |
750 |
3 |
|
WM1.0-100 |
1.0 |
100 |
7.56 |
15 |
950 |
4 |
|
WM1.5-100 |
1.5 |
100 |
11.34 |
18.5 |
950 |
4 |
|
WM1.5-150 |
1.5 |
150 |
7.44 |
30 |
1450 |
4 |
|
WM2.0-150 |
2.0 |
150 |
9.93 |
37 |
1450 |
4 |