CN215906151U

CN215906151U - Seabed heavy oil vacuum pumping device

Info

Publication number: CN215906151U
Application number: CN202121889535.0U
Authority: CN
Inventors: 梁晓; 王洋; 梁兴高; 洪家豪
Original assignee: Zhejiang Manyang Shipping Engineering Co ltd
Current assignee: Zhejiang Manyang Shipping Engineering Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-02-25
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a submarine heavy oil vacuum pumping device, which is characterized in that: including vacuum oil-well pump (1), one-level purification bucket (2) and second grade purification bucket (3), vacuum oil-well pump (1) is used for pumping, one-level purification bucket (2) are used for carrying out water oil separating to the crude oil that comes in the extraction, second grade purification bucket (3) are used for carrying out the edulcoration to crude oil that has water oil separating and handle, the bottom of one-level purification bucket (2) is equipped with outlet (2.1), the bottom of one-level purification bucket (2) still is equipped with bubble generator (2.2) that are used for the input bubble, bubble generator (2.2) can accelerate the separating rate of profit. The utility model provides a submarine heavy oil vacuum pumping device which can accelerate the separation speed of a gravity separation method and improve the output efficiency of high-quality crude oil.

Description

Seabed heavy oil vacuum pumping device

Technical Field

The utility model relates to the field of oil-well pumps, in particular to a submarine heavy oil vacuum pumping device.

Background

The vacuum oil pump is a common underground device which uses air negative pressure to pump crude oil in a well to the ground. However, because the crude oil contains sand, wax, water, gas and corrosive substances, the crude oil needs to be subjected to impurity separation to a certain degree after being extracted for further transportation and use.

The common separation device mainly separates impurities by a gravity separation method, and after crude oil is kept still for a period of time, the gas has the minimum density and floats above the crude oil; the density of the sand and the water is greater than that of the crude oil, and the sand and the water are precipitated below the crude oil; wax has a density slightly greater than that of crude oil, but dissolves in crude oil and requires special extraction, while corrosive substances are diverse in kind, dispersed in each layer, but in a small amount.

However, the gravity separation method using standing still requires a lot of waiting time, which results in long separation time after crude oil is extracted, and is not favorable for high-efficiency production of high-quality crude oil.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the device can accelerate the separation speed of the gravity separation method and improve the output efficiency of high-quality crude oil.

The technical scheme adopted by the utility model for solving the problems is as follows: the utility model provides a seabed heavy oil vacuum draw-out device, includes vacuum oil-well pump, one-level purification bucket and second grade purification bucket, the vacuum oil-well pump is used for pumping, one-level purification bucket is used for carrying out oil-water separation to the crude oil that comes in the extraction, second grade purification bucket is used for carrying out the edulcoration processing to the crude oil of oil-water separation, the bottom of one-level purification bucket is equipped with the outlet, the bottom of one-level purification bucket still is equipped with the bubble generator who is used for inputing the bubble, the bubble generator can accelerate the separating rate of profit.

Compared with the prior art, the utility model has the advantages that: after the vacuum oil-well pump extracts crude oil, send crude oil into the one-level purification bucket, then input the bubble to one-level purification bucket bottom through the bubble generator, the bubble is through quick come-up, thereby the crude oil come-up in the drive aquatic, the separating rate of crude oil and water has been accelerated, thereby the latency of separation has been reduced, and after crude oil and water separation, water can be discharged from the outlet, and gas and the crude oil after the separation can be carried to second grade purification bucket direction, crude oil carries out getting rid of other impurity in the second grade purification bucket in order to obtain high-quality crude oil, finally realize improving the purpose of high-quality crude oil's output efficiency, the outlet also can be after the crude oil extraction simultaneously, send water, discharge one-level purification bucket with all crude oils in the one-level purification bucket.

As an improvement of the utility model, a power oil-well pump is arranged between the primary purification barrel and the secondary purification barrel and is used for extracting and conveying the crude oil in the primary purification barrel into the secondary purification barrel, and the purpose of conveying the crude oil after water-oil separation from the primary purification barrel to the secondary purification barrel is realized through the improvement.

As an improvement of the utility model, a first exhaust valve is arranged between the power oil well pump and the primary purification barrel, and the first exhaust valve is arranged at the upper end of a conveying pipe between the power oil well pump and the primary purification barrel.

As an improvement of the utility model, a second exhaust valve is also arranged between the power oil-well pump and the primary purification barrel, the second exhaust valve is arranged at the input end of the power oil-well pump, an air cavity for storing air is arranged in the second exhaust valve, an exhaust port is arranged at one side of the air cavity, through the improvement, a small amount of air still can be mixed in crude oil after passing through the exhaust valve of the first exhaust valve, if the air directly enters the power oil-well pump, the inside of the power oil-well pump can form air ringing to cause a large amount of noise, meanwhile, oil supply lines can also form fluctuation to be unfavorable for the transportation of the crude oil, through the design of the air cavity, the air which is not discharged from the first exhaust valve can be concentrated in the air cavity, and the crude oil is continuously maintained in a transportation process, which is similar to the process of infusion, a buffer air bag of a infusion tube is dripped to ensure the stability of the transportation of the crude oil, when the gas in the gas cavity reaches a certain amount, the gas in the gas cavity is discharged from the gas outlet.

As an improvement of the utility model, a delivery pipe and a filter for transporting crude oil are arranged between the secondary purification barrel and the power oil well pump, the delivery pipe and the filter between the secondary purification barrel and the power oil well pump are connected in parallel, one end of the filter is connected with the lower end of the secondary purification barrel, the other end of the filter is connected with the output end of the power oil-well pump, the secondary purification barrel conveys crude oil into the secondary purification barrel through a conveying pipe between the secondary purification barrel and the power oil-well pump, the filter is used for transporting and filtering the crude oil in the secondary purification barrel to the output end of the power oil well pump, and through the improvement, a crude oil circulating and conveying loop is formed between the secondary purification barrel and the power oil well pump, so that crude oil can pass through the filter for many times, impurities in the crude oil are removed by using a filter element structure in the filter, and the quality of the crude oil is improved.

As a further improvement of the utility model, a driving pump is arranged between the filter and the secondary purification barrel, and the aim of circularly conveying the crude oil is fulfilled by the improvement.

The utility model also provides an improvement that a conveying pipe between a filter and a secondary purification barrel is arranged along a tangent line of the inner side wall of the secondary purification barrel, and when crude oil is conveyed from the secondary purification barrel to the filter by a driving pump, the crude oil forms a vortex flow in the secondary purification barrel, so that impurities can move to the side wall and the bottom of the secondary purification barrel, the impurities moving to the side wall can more easily move to the direction of the filter to be removed, and the impurities moving to the bottom can be easily precipitated after being accumulated, thereby improving the quality of the crude oil.

As a further improvement of the utility model, the bottom end of the inner side wall of the secondary purification barrel is provided with a spiral guide line, and impurities can move along the line direction of the guide line through the improvement, so that the impurities can be better guided to the filter for filtering.

As a further improvement of the present invention, an observation groove is provided on the side wall of the primary purification barrel, the observation groove is used for observing the oil-water separation state in the primary purification barrel, and through the improvement, the observation of the oil-water separation state in the primary purification barrel is facilitated, the composition and initial proportion of the crude oil in the primary purification barrel are facilitated, the quality of the crude oil is facilitated, and whether operations such as drainage, oil supply and the like are performed can also be determined.

Drawings

Fig. 1 is a schematic structural view of the overall structure of the present invention.

FIG. 2 is a sectional view of a second exhaust valve mounting structure according to the present invention

Fig. 3 is a partial sectional structural schematic view of the secondary purification tank of the present invention.

FIG. 4 is a schematic top view of the secondary cleaning tank and the driving pump according to the present invention.

Shown in the figure: 1. vacuum oil-well pump, 2, one-level purification bucket, 2.1, outlet, 2.2, bubble generator, 2.3, observation groove, 3, second grade purification bucket, 3.1, direction line, 4, power oil-well pump, 5, first discharge valve, 6, second discharge valve, 6.1, air cavity, 6.2, gas vent, 7, filter, 8, driving pump.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings.

As shown in fig. 1, a submarine heavy oil vacuum pumping device comprises a vacuum oil pump 1, a primary purification barrel 2 and a secondary purification barrel 3, wherein the vacuum oil pump 1 is used for pumping oil, the primary purification barrel 2 is used for separating oil from water in the pumped crude oil, the secondary purification barrel 3 is used for removing impurities from the crude oil which is separated from oil, a water outlet 2.1 is arranged at the bottom of the primary purification barrel 2, a bubble generator 2.2 for inputting bubbles is further arranged at the bottom of the primary purification barrel 2, the bubble generator 2.2 can accelerate the oil-water separation speed, a power oil pump 4 is arranged between the primary purification barrel 2 and the secondary purification barrel 3, the power oil pump 4 is used for pumping the crude oil in the primary purification barrel 2 and conveying the crude oil to the secondary purification barrel 3, and a first exhaust valve 5 is arranged between the power oil pump 4 and the primary purification barrel 2, the upper end of conveyer pipe between power oil-well pump 4 and the one-level purification bucket 2 is located to first blast gate 5, be equipped with observation groove 2.3 on the lateral wall of one-level purification bucket 2, observation groove 2.3 is used for observing the water oil separating state in the one-level purification bucket 2.

As shown in fig. 1-2, a second exhaust valve 6 is further disposed between the power oil well pump 4 and the primary purification barrel 2, the second exhaust valve 6 is disposed at an input end of the power oil well pump 4, an air cavity 6.1 for storing air is disposed in the second exhaust valve 6, an exhaust port 6.2 is disposed on one side of the air cavity 6.1, and a switch valve for opening and closing the exhaust port 6.2 is disposed on the exhaust port 6.2.

As shown in fig. 1, 3 and 4, a delivery pipe and a filter 7 for transporting crude oil are arranged between the secondary purification barrel 3 and the power oil pump 4, the delivery pipe between the secondary purification barrel 3 and the power oil pump 4 is connected with the filter 7 in parallel, one end of the filter 7 is connected with the lower end of the secondary purification barrel 3, the other end of the filter 7 is connected with the output end of the power oil-well pump 4, the secondary purification barrel 3 conveys crude oil into the secondary purification barrel 3 through a conveying pipe between the secondary purification barrel 3 and the power oil-well pump 4, the filter 7 is used for transporting and filtering the crude oil in the secondary purification barrel 3 to the output end of the power oil well pump 4, be equipped with between filter 7 and the second grade purification bucket 3 driving pump 8, the tangent line setting of the inside wall along second grade purification bucket 3 of transfer pipe between filter 7 and the second grade purification bucket 3, the bottom of the inside wall of second grade purification bucket 3 is equipped with the direction line 3.1 that is the screw-tupe.

Bubble generator 2.2 is including accuse pneumatic valve and many breather pipes, many all be equipped with a plurality of ventholes on venthole and every breather pipe on the breather pipe, the vertical upwards setting of venthole, on the lateral wall of breather pipe was located to the venthole, it is a plurality of the venthole is along same cross section equipartition. The excitation frequency of the bubbles can be adjusted through the air control valve, so that the over-high air pressure in the primary purification barrel 2 is avoided; through the design of the air outlet, the oil-water separation speed can be greatly increased.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the scope of the utility model as defined by the independent claims are intended to be embraced therein.

Claims

1. A seabed heavy oil vacuum pumping device which characterized in that: including vacuum oil-well pump (1), one-level purification bucket (2) and second grade purification bucket (3), vacuum oil-well pump (1) is used for pumping, one-level purification bucket (2) are used for carrying out water oil separating to the crude oil that comes in the extraction, second grade purification bucket (3) are used for carrying out the edulcoration to crude oil that has water oil separating and handle, the bottom of one-level purification bucket (2) is equipped with outlet (2.1), the bottom of one-level purification bucket (2) still is equipped with bubble generator (2.2) that are used for the input bubble, bubble generator (2.2) can accelerate the separating rate of profit.

2. The subsea heavy oil vacuum extraction device of claim 1, wherein: be equipped with power oil-well pump (4) between one-level purification bucket (2) and second grade purification bucket (3), power oil-well pump (4) are arranged in extracting the crude oil in one-level purification bucket (2) and carry in second grade purification bucket (3).

3. The subsea heavy oil vacuum extraction device of claim 2, wherein: be equipped with first exhaust valve (5) between power oil-well pump (4) and one-level purification bucket (2), the upper end of conveyer pipe between power oil-well pump (4) and one-level purification bucket (2) is located to first exhaust valve.

4. The subsea heavy oil vacuum extraction device of claim 2, wherein: still be equipped with second discharge valve (6) between power oil-well pump (4) and one-level purification bucket (2), the input of power oil-well pump (4) is located in second discharge valve (6), be equipped with air cavity (6.1) that are used for storing gas in second discharge valve (6), one side of air cavity (6.1) is equipped with gas vent (6.2).

5. The subsea heavy oil vacuum extraction device of claim 2, wherein: including conveyer pipe and filter (7) that are used for transporting crude oil between second grade purification bucket (3) and power oil-well pump (4), conveyer pipe and filter (7) between second grade purification bucket (3) and power oil-well pump (4) are parallelly connected, the one end of filter (7) links to each other with the lower extreme of second grade purification bucket (3), the other end of filter (7) links to each other with the output of power oil-well pump (4), and second grade purification bucket (3) are carried crude oil in second grade purification bucket (3) through the conveyer pipe between second grade purification bucket (3) and power oil-well pump (4), filter (7) are arranged in transporting and filtering the crude oil in second grade purification bucket (3) to the output of power oil-well pump (4).

6. The subsea heavy oil vacuum extraction device of claim 5, wherein: a driving pump (8) is arranged between the filter (7) and the secondary purification barrel (3).

7. The subsea heavy oil vacuum extraction device of claim 5, wherein: the conveying pipe between the filter (7) and the secondary purification barrel (3) is arranged along the tangent line of the inner side wall of the secondary purification barrel (3).

8. The subsea heavy oil vacuum extraction device of claim 7, wherein: the bottom of the inner side wall of the secondary purification barrel (3) is provided with spiral guide lines (3.1).

9. The subsea heavy oil vacuum extraction device of claim 1, wherein: be equipped with observation groove (2.3) on the lateral wall of one-level purification bucket (2), observation groove (2.3) are used for observing the water oil separating state in one-level purification bucket (2).