Oil gathering line pressure shunting system

Abstract

The utility model provides an oil gathering line pressure shunting system, which belongs to the technical field of gas turbine fuel mixing and comprises a first oil gathering line, a second oil gathering line and a gap bridge communication pipeline, one end of the first oil gathering line and one end of the second oil gathering line are connected with a plurality of oil wells, and the other end of the first oil gathering line and the other end of the second oil gathering line are connected with an oil transfer station. The first oil collecting line and the second oil collecting line are connected in parallel; the gap bridge communication pipeline is respectively connected with the first oil collection line and the second oil collection line, and a diverter valve is arranged on the gap bridge communication pipeline. According to the system, the oil collecting line with insufficient conveying capacity can be communicated with the oil collecting line with surplus conveying capacity to form an oil collecting line multiphase pump whole system capable of mutually adjusting the conveying capacity, the cost is low, implementation is easy, and the economic benefits of an oil field can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oilfield mining equipment, and in particular relates to an oil gathering line pressure diversion system. Background Art

[0002] With the development of oil fields, the oil field operating areas may increase production, add new wells, and increase output. On the one hand, the distance between oil wells is constantly increasing. Some well stations are far apart, and the oil pipelines connected to the oil transfer stations are as long as dozens of kilometers. On the other hand, the original oil gathering pipelines were designed according to the previously planned production capacity. With the increase of new wells or production, the liquid production may greatly exceed the delivery capacity of the crude oil and gas mixed transmission pump, causing the pressure of the oil gathering pipeline to increase, and even the situation where closed production, normal transportation and metering cannot be carried out. The operating team needs to strengthen line patrols, which increases the work intensity of the team members. The output of new and old wells will be affected, increasing the cost of crude oil production; it also adds risks to the production activities of the operating area and the operating team. Utility Model Content

[0003] In response to the problems existing in the above-mentioned prior art, the utility model provides an oil gathering line pressure diversion system. The technical problem to be solved by the utility model is to optimize the process flow of the oil gathering line, adjust the pressure of the oil gathering line, and improve the delivery capacity of the oil and gas mixed transmission pump, so that all wells can enter closed production, avoid and reduce the occurrence of various risks, and ensure the normal production of the oil wells.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An oil gathering line pressure diversion system comprises: a first oil gathering line, a second oil gathering line and a bridge connecting pipeline, wherein one end of the first oil gathering line and the second oil gathering line are connected to a plurality of oil wells, and the other end is connected to an oil transfer station, and the first oil gathering line and the second oil gathering line are connected in parallel with each other; the bridge connecting pipeline is respectively connected to the first oil gathering line and the second oil gathering line, and a diversion valve is arranged on the bridge connecting pipeline.

[0006] Furthermore, the first oil gathering line includes a first oil and gas mixed pump, the second oil gathering line includes a second oil and gas mixed pump, and the bridge connecting pipeline is set in at least one of the following ways: set before the inlet end of the first oil and gas mixed pump and the inlet end of the second oil and gas mixed pump; set after the outlet end of the first oil and gas mixed pump and the outlet end of the second oil and gas mixed pump.

[0007] Furthermore, the first oil-gas mixed flow pump and the second oil-gas mixed flow pump both include a screw type oil-gas mixed flow pump and a plunger type oil-gas mixed flow pump.

[0008] Furthermore, the first oil gathering line includes a first regulating valve, a first pressure gauge, the first oil-gas mixed transmission pump and a second regulating valve which are connected in sequence, the first regulating valve is connected to a plurality of oil wells respectively, and the second regulating valve is connected to an oil transfer station.

[0009] Furthermore, the first oil collection line also includes a first buffer tank, which is disposed between the first oil-gas mixed transmission pump and the second regulating valve, and the first buffer tank is also connected to the inlet end of the first pressure gauge through a first balancing pipeline.

[0010] Furthermore, a third regulating valve and a fourth regulating valve are also provided on the first balancing pipeline, and the inlet end of the first pressure gauge, the third regulating valve, the fourth regulating valve, and the first buffer tank are connected in sequence.

[0011] Furthermore, the second oil gathering line includes a fifth regulating valve, a second pressure gauge, the second oil-gas mixed transmission pump and a sixth regulating valve which are connected in sequence, the fifth regulating valve is respectively connected to a number of oil wells, and the sixth regulating valve is connected to an oil transfer station.

[0012] Furthermore, the second oil gathering line also includes a second buffer tank, which is arranged between the second oil-gas mixed transmission pump and the sixth regulating valve, and the second buffer tank is also connected to the inlet end of the second pressure gauge through a second balancing pipeline.

[0013] Furthermore, a seventh regulating valve and an eighth regulating valve are also provided on the second balancing pipeline, and the inlet end of the second pressure gauge, the seventh regulating valve, the eighth regulating valve, and the second buffer tank are connected in sequence.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The first oil gathering line and the second oil gathering line are connected through a bridge connecting pipeline. When the production of the oil wells connected to the first oil gathering line increases and new wells are put into production, resulting in the liquid production exceeding the delivery capacity of the first oil and gas mixed transportation pump, the pressure of the first oil gathering line increases, and even closed production cannot be carried out, and normal transportation and metering cannot be carried out. The newly added liquid production can be input into the second oil gathering line through the bridge connecting pipeline, and then transported to the oil transfer station through the second delivery pump; similarly, when the production of the oil wells connected to the second oil gathering line increases and new wells are put into production, resulting in the liquid production exceeding the delivery capacity of the second oil and gas mixed transportation pump, the delivery capacity of the first oil and gas mixed transportation pump can also be dispatched to send the newly added liquid production to the oil transfer station, thereby ensuring that the pressures of the first oil gathering line and the second oil gathering line are within the preset range, ensuring normal transportation and metering of the industry;

[0016] 2. The utility model does not require modification of the first oil gathering line or the second oil gathering line. For projects that have been put into operation and require new oil wells or increased production, it is only necessary to connect the oil gathering line with insufficient delivery capacity with the oil gathering line with surplus delivery capacity through a bridge connecting pipeline to form an overall system of oil gathering line mixed delivery pumps that can adjust the delivery volume to each other. The system has low cost and is easy to implement, and is particularly suitable for the transformation of old projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] In the figure:

[0019] 1-first oil gathering line, 2-second oil gathering line, 3-bridge connecting pipeline, 4-oil well, 5-oil transfer station, 6-diverter valve, 7-first oil and gas mixed pump, 8-second oil and gas mixed pump, 9-first regulating valve, 10-first pressure gauge, 11-second regulating valve, 12-first buffer tank, 13-first balancing pipeline, 14-third regulating valve, 15-fourth regulating valve, 16-fifth regulating valve, 17-second pressure gauge, 18-sixth regulating valve, 19-second buffer tank, 20-second balancing pipeline, 21-seventh regulating valve, 22-eighth regulating valve. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is clearly and completely described below in conjunction with the accompanying drawings.

[0021] Example 1

[0022] As attached Figure 1 As shown, this embodiment provides the following technical solutions:

[0023] An oil gathering line pressure diversion system comprises: a first oil gathering line 1, a second oil gathering line 2 and a bridge connecting pipeline 3, wherein one end of the first oil gathering line 1 and the second oil gathering line 2 are connected to a plurality of oil wells 4, and the other end is connected to an oil transfer station 5, and the first oil gathering line 1 and the second oil gathering line 2 are connected in parallel with each other; the bridge connecting pipeline 3 is connected to the first oil gathering line 1 and the second oil gathering line 2 respectively, and a diversion valve 6 is arranged on the bridge connecting pipeline 3.

[0024] In the figure, the direction of the arrow is the flow direction of the medium (such as oil and gas) in the pipeline.

[0025] Furthermore, the first oil gathering line 1 includes a first oil and gas mixed pump 7, the second oil gathering line 2 includes a second oil and gas mixed pump 8, and the bridge connecting pipeline 3 is set in at least one of the following ways: set before the inlet end of the first oil and gas mixed pump 7 and the inlet end of the second oil and gas mixed pump 8; set after the outlet end of the first oil and gas mixed pump 7 and the outlet end of the second oil and gas mixed pump 8.

[0026] In some preferred implementation schemes of the present embodiment, a bridge connecting pipeline 3 is provided at both the inlet and outlet ends of the first oil and gas mixed pump 7 and the second oil and gas mixed pump 8, that is, the bridge connecting pipeline 3 is provided at both the inlet and outlet ends of the oil and gas mixed pump, and the inlet pressure or outlet flow of the first oil and gas mixed pump 7 / the second oil and gas mixed pump 8 is diverted through the bridge connecting pipeline 3, and then the pressure of the first oil and gas mixed pump 7 and the second oil and gas mixed pump 8 is adjusted, so that the inlet pressure of the two oil and gas mixed pumps and the outlet pressure of the two oil and gas mixed pumps are within the optimal working range of the oil and gas mixed pumps, and then the flow load on the two oil gathering lines can fall within the design load, thereby improving the transmission efficiency of the oil gathering lines.

[0027] Furthermore, the first oil-gas mixed flow pump 7 and the second oil-gas mixed flow pump 8 both include a screw type oil-gas mixed flow pump and a plunger type oil-gas mixed flow pump.

[0028] Furthermore, the first oil gathering line 1 includes a first regulating valve 9, a first pressure gauge 10, the first oil-gas mixed transmission pump 7 and a second regulating valve 11 which are connected in sequence. The first regulating valve 9 is respectively connected to a plurality of oil wells 4, and the second regulating valve 9 is connected to the oil transfer station 5.

[0029] Furthermore, the second oil gathering line 2 includes a fifth regulating valve 16 , a second pressure gauge 17 , the second oil-gas mixed transmission pump 8 and a sixth regulating valve 18 which are connected in sequence. The fifth regulating valve 16 is respectively connected to several oil wells 4 , and the sixth regulating valve 18 is connected to the oil transfer station 5 .

[0030] Since the oil gathering line with insufficient conveying capacity is connected with the oil gathering line with surplus conveying capacity through the bridge connecting pipeline, an overall system of oil gathering line mixed delivery pumps that can adjust the conveying volume to each other can be formed. Therefore, the utility model does not need to modify the oil gathering pipeline itself, has a small workload, low cost, and is easy to implement. It is particularly suitable for projects that have been put into operation and require new oil wells or increased production.

[0031] Example 2

[0032] The difference from Example 1 is that in this embodiment, the first oil gathering line 1 also includes a first buffer tank 12, and the first buffer tank 12 is arranged between the first oil and gas mixed pump 7 and the second regulating valve 11, and the first buffer tank 12 is also connected to the inlet end of the first pressure gauge 10 through the first balancing pipeline 13.

[0033] Furthermore, a third regulating valve 14 and a fourth regulating valve 15 are also provided on the first balancing pipeline 13, and the inlet end of the first pressure gauge 10, the third regulating valve 14, the fourth regulating valve 15, and the first buffer tank 12 are connected in sequence.

[0034] Furthermore, the second oil gathering line 2 also includes a second buffer tank 19 , which is disposed between the second oil-gas mixed transmission pump 8 and the sixth regulating valve 18 , and the second buffer tank 19 is also connected to the inlet end of the second pressure gauge 17 through a second balancing pipeline 20 .

[0035] Furthermore, a seventh regulating valve 21 and an eighth regulating valve 22 are also provided on the second balancing pipeline 20, and the inlet end of the second pressure gauge 17, the seventh regulating valve 21, the eighth regulating valve 22, and the second buffer tank 19 are connected in sequence.

[0036] The pressure at the inlet and outlet of the oil-gas mixed transmission pump is adjusted by the buffer tank to achieve stable flow and pressure on the oil gathering pipeline.

[0037] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. An oil collection line pressure diversion system, characterized in that: include: The first oil gathering line, the second oil gathering line and the bridge connecting pipeline, one end of the first oil gathering line and the second oil gathering line are connected to a plurality of oil wells, and the other end is connected to the oil transfer station, the first oil gathering line and the second oil gathering line are connected in parallel with each other; the bridge connecting pipeline is respectively connected to the first oil gathering line and the second oil gathering line, and a diverter valve is arranged on the bridge connecting pipeline.

2. The oil collecting line pressure diversion system according to claim 1, characterized in that: The first oil gathering line includes a first oil and gas mixed pump, the second oil gathering line includes a second oil and gas mixed pump, and the bridge connecting pipeline is set in at least one of the following ways: set before the inlet end of the first oil and gas mixed pump and the inlet end of the second oil and gas mixed pump; set after the outlet end of the first oil and gas mixed pump and the outlet end of the second oil and gas mixed pump.

3. The oil collecting line pressure diversion system according to claim 2, characterized in that: The first oil-gas mixed flow pump and the second oil-gas mixed flow pump both include a screw type oil-gas mixed flow pump and a plunger type oil-gas mixed flow pump.

4. The oil collecting line pressure diversion system according to claim 2, characterized in that: The first oil gathering line includes a first regulating valve, a first pressure gauge, the first oil-gas mixed transmission pump and a second regulating valve which are connected in sequence. The first regulating valve is respectively connected to a number of oil wells, and the second regulating valve is connected to an oil transfer station.

5. The oil collecting line pressure diversion system according to claim 4, characterized in that: The first oil collection line further includes a first buffer tank, which is disposed between the first oil-gas mixed transmission pump and the second regulating valve, and the first buffer tank is also connected to the inlet end of the first pressure gauge through a first balancing pipeline.

6. The oil collection line pressure diversion system according to claim 5, characterized in that: A third regulating valve and a fourth regulating valve are also arranged on the first balancing pipeline, and the inlet end of the first pressure gauge, the third regulating valve, the fourth regulating valve and the first buffer tank are connected in sequence.

7. The oil collection line pressure diversion system according to claim 2, characterized in that: The second oil gathering line includes a fifth regulating valve, a second pressure gauge, the second oil-gas mixed transmission pump and a sixth regulating valve which are connected in sequence. The fifth regulating valve is respectively connected to a number of oil wells, and the sixth regulating valve is connected to an oil transfer station.

8. The oil collection line pressure diversion system according to claim 7, characterized in that: The second oil gathering line further includes a second buffer tank, which is disposed between the second oil-gas mixed transmission pump and the sixth regulating valve, and the second buffer tank is also connected to the inlet end of the second pressure gauge through a second balancing pipeline.

9. The oil collection line pressure diversion system according to claim 8, characterized in that: The seventh regulating valve and the eighth regulating valve are also arranged on the second balancing pipeline, and the inlet end of the second pressure gauge, the seventh regulating valve, the eighth regulating valve and the second buffer tank are connected in sequence.

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