CN211623391U

CN211623391U - Sand removing device for oil extraction well head

Info

Publication number: CN211623391U
Application number: CN202020250111.9U
Authority: CN
Inventors: 刘海平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-02
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses an oil recovery is sand removing device for well head, which comprises an outer shell, the shell top is provided with sand removing mechanism and pressure release mechanism, shell both sides outer wall welding has the mechanism of washing, shell bottom outer wall welding has moving mechanism, shell one side outer wall welding has the liquid mechanism of going out, shell top outer wall welding has the lug, sand removing mechanism includes baffle, first pivot, supporting seat, through-hole, crosses filtration pore, small opening, screen pipe, filter plate, first gear, second gear, motor, filtration post and guide pillar, it includes flushing pipe, second valve, second choke valve and outlet pipe to wash the mechanism. The utility model discloses a first gear drives the first pivot rotation of filtering column bottom portion, accelerates fluid through centrifugal force to appear, can carry out secondary filter degritting to fluid through the filter plate, can carry out real time monitoring to the pressure of shell inside through the manometer to the pressure through pressure relief valve is balanced to the inside pressure of shell.

Description

Sand removing device for oil extraction well head

Technical Field

The utility model relates to a sand removal device technical field especially relates to an oil recovery is sand removal device for well head.

Background

In the prior art, sand is produced in the production process of an oil well or a gas well due to poor consolidation of an oil-gas reservoir and failure of gravel packing or sand control measures. Formation sand, frac sand, drill cuttings and scale often cause mechanical wear on surface pipelines, nozzles, control valves, transfer pumps and other equipment, and once the oil and gas well sand deposits in surface equipment (e.g., separators) or partially blocks the pipeline openings, in addition to reducing the handling capacity of the equipment, the equipment life is impacted, operating costs are increased, and even safety accidents may occur. In order to avoid the above situation, it is necessary to filter out the impurities in the oil and gas before oil and gas treatment (such as oil and gas separation) and transportation.

Through retrieval, the patent with the Chinese patent application number of CN204200190U discloses a wellhead desanding device for an oil field, which comprises a desanding cylinder, wherein the desanding cylinder comprises a desanding cylinder body, an upper pressing cap and a lower pressing cap, the upper pressing cap and the lower pressing cap are arranged at two end parts of the desanding cylinder body, and a fluid inlet and a fluid outlet are arranged on the desanding cylinder body; the sand removal cylinder further comprises: the screen pipe is arranged in the sand removing cylinder body; the screen pipe comprises a base pipe, two end parts of the base pipe are in an overflowing tubular shape, annular bulges attached to the inner wall of the barrel body are arranged on the periphery of the base pipe, a certain gap space is formed between the screen pipe and the inner wall of the sand removing barrel body, sealing rings are inlaid on the annular bulges to seal the screen pipe and the inner wall of the sand removing barrel body, and the base pipe is located below the fluid inlet to enable fluid to be subjected to sand removing to enter the inner cavity of the screen pipe. The sand removing device borrow from the sand control principle, adopt screen pipe sand control technique to reach the sand removal purpose, can improve the sand removal effect according to the size pre-selected different filter fineness's of impurity screen pipe. A well head sand removal device for oil field in above-mentioned patent exists following not enough: the device needs a large amount of control valves, the cost is high, the device is inconvenient to move, and a pressure monitoring device is not arranged, so that the safety is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the device that exists among the prior art and needing a large amount of control valves, the cost is higher, and the device removes inconvenient and does not have pressure monitoring device, reduces the security shortcoming, and the sand removal device for the oil recovery well head that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oil recovery is sand removal device for well head, includes the shell, the shell top is provided with sand removal mechanism and pressure release mechanism, the outer wall welding of shell both sides has the mechanism of washing, the outer wall welding of shell bottom has moving mechanism, the outer wall welding of shell one side has liquid mechanism, the outer wall welding of shell top has the lug.

As a further aspect of the present invention: the sand removing mechanism comprises a partition plate, a first rotating shaft, a supporting seat, a through hole, a filtering hole, a leak hole, a sieve tube, a filter plate, a first gear, a second gear, a motor, a filtering column and a guide pillar, wherein the partition plate and the filter plate are welded on the inner wall of the shell, the through hole is formed in the outer wall of the partition plate, the supporting seat is welded on the outer wall of the top of the partition plate, the first rotating shaft is rotatably connected on the outer wall of the top of the supporting seat, the bottom of the filtering column is welded on the outer wall of the top of the first rotating shaft.

As a further aspect of the present invention: the first gear is welded on the outer wall of the top of the filter column, the guide column is connected on the outer wall of the top of the first gear in a rotating mode, the sieve tube is connected on the inner wall of the guide column in a rotating mode, the filter hole is formed in the outer wall of the sieve tube, the second gear is connected on the outer wall of the first gear in a meshing mode, and the motor is welded on the top of the second gear.

As a further aspect of the present invention: the flushing mechanism comprises a flushing pipe, a second valve, a second throttle valve and a water outlet pipe, the flushing pipe and the water outlet pipe are welded on the outer wall of the shell connection respectively, the second throttle valve is arranged on the outer wall of the water outlet pipe, and the second valve is rotatably connected to the inner wall of the second throttle valve.

As a further aspect of the present invention: go out liquid mechanism and include first valve, drain pipe and first choke valve, the drain pipe welds in shell one side outer wall, first choke valve sets up in the drain pipe outer wall, first valve rotates to be connected in first choke valve inner wall.

As a further aspect of the present invention: pressure release mechanism is including pressure release valve, pressure valve and manometer, the pressure valve sets up in shell top outer wall, the manometer welds in the pressure valve outer wall, pressure release valve rotates to be connected in the pressure valve inner wall.

As a further aspect of the present invention: moving mechanism includes pillar, second pivot, universal wheel and universal wheel support, the pillar welds in shell bottom outer wall, the second pivot is rotated and is connected in pillar bottom outer wall, the universal wheel support welds in second pivot bottom, the universal wheel rotates and connects in universal wheel support inner wall.

Compared with the prior art, the utility model provides an oil recovery is sand removal device for well head possesses following beneficial effect:

1. this kind of oil recovery is sand removal device for well head is provided with the screw thread through the screen pipe outer wall, can rotate to be connected in the guide pillar inner wall, conveniently demolishs and changes the screen pipe, and it is rotatory to drive the first pivot of filtering the column bottom portion through first gear, accelerates fluid to appear from the small opening through centrifugal force, can carry out the secondary filter sand removal to fluid through the filter plate, has improved work efficiency.

2. This kind of oil recovery is sand removal device for well head can wash the filter plate through the flushing pipe to discharge the flush fluid from the outlet pipe, the flow of flush fluid can be controlled to the second choke valve, and the flushing pipe seals through the ring flange when not using, has reduced use cost.

3. This kind of oil recovery is sand removal device for well head can carry out real time monitoring to the inside pressure of shell through the manometer to pressure through pressure relief valve is balanced to the inside pressure of shell.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simple structure, convenient operation.

Drawings

Fig. 1 is a schematic structural view of a sand removing device for an oil recovery wellhead according to the present invention;

fig. 2 is a schematic top view of the sand removing device for the oil recovery wellhead according to the present invention;

fig. 3 is the utility model provides a sand removal device for oil recovery well head look sideways at the schematic structure.

In the figure: 1-shell, 2-baffle, 3-flushing pipe, 4-first rotating shaft, 5-support seat, 6-through hole, 7-filtering hole, 8-lifting lug, 9-leak hole, 10-sieve tube, 11-pressure relief valve, 12-pressure valve, 13-filter plate, 14-first valve, 15-liquid outlet pipe, 16-first throttle valve, 17-pressure gauge, 18-first gear, 19-second gear, 20-motor, 21-second valve, 22-second throttle valve, 23-water outlet pipe, 24-support column, 25-second rotating shaft, 26-universal wheel, 27-universal wheel support, 28-filtering column and 29-guide column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model provides an oil recovery is sand removal device for well head, as shown in fig. 1, fig. 2, fig. 3, includes

shell

1, 1 top of shell is provided with sand removal mechanism and pressure release mechanism, the outer wall welding of 1 both sides of shell has the mechanism of washing, the outer wall welding of 1 bottom of shell has moving mechanism, the outer wall welding of 1 one side of shell has a liquid mechanism, the outer wall welding of 1 top of shell has lug 8.

In order to desand oil, as shown in fig. 1 and 3, the desanding mechanism comprises a partition plate 2, a first rotating shaft 4, a supporting seat 5, a through hole 6, a filtering hole 7, a leakage hole 9, a sieve tube 10, a filter plate 13, a first gear 18, a second gear 19, a motor 20, a filtering column 28 and a guide post 29, wherein the partition plate 2 and the filter plate 13 are welded on the inner wall of a housing 1, the through hole 6 is opened on the outer wall of the partition plate 2, the supporting seat 5 is welded on the outer wall of the top of the partition plate 2, the first rotating shaft 4 is rotatably connected to the outer wall of the top of the supporting seat 5, the bottom of the filtering column 28 is welded on the outer wall of the top of the first rotating shaft 4, the leakage hole 9 is opened on the outer wall of the filtering column 28, the first gear 18 is welded on the outer wall of the top of the filtering column 28, the guide post 29 is rotatably connected, the second gear 19 is engaged with the outer wall of the first gear 18, and the motor 20 is welded on the top of the second gear 19; treat that the fluid of degritting enters into screen pipe 10 in, the gravel is held back by filtration pore 7, screen pipe 10 plays the storage effect to the gravel, screen pipe 10 outer wall is provided with the screw thread, can rotate and connect in guide pillar 29 inner wall, the convenience is demolishd and is changed screen pipe 10, motor 20 drives second gear 19 rotatory, second gear 19 drives first gear 18 rotatory, it is rotatory to drive first pivot 4 of crossing the pillar 28 bottom through first gear 18, accelerate fluid to appear from the small opening 9 through centrifugal force, can carry out the secondary filter degritting to fluid through filter plate 13, and the work efficiency is improved.

In order to wash the filter plates 13, as shown in fig. 1 and 3, the washing mechanism includes a washing pipe 3, a second valve 21, a second throttle valve 22 and a water outlet pipe 23, the washing pipe 3 and the water outlet pipe 23 are respectively welded to the outer wall of the connection of the housing 1, the second throttle valve 22 is arranged on the outer wall of the water outlet pipe 23, and the second valve 21 is rotatably connected to the inner wall of the second throttle valve 22; the long-time desanding of filtering of filter plate 13, its surface has the grit to store up, can block up filter plate 13, influences desanding efficiency, can wash filter plate 13 through flushing pipe 3 to discharge the flush fluid from outlet pipe 23, the flow of flush fluid can be controlled to second choke valve 22, flushing pipe 3 seals through the ring flange when not using, has reduced use cost.

In order to control the flow rate of the oil, as shown in fig. 2, the liquid outlet mechanism includes a first valve 14, a liquid outlet pipe 15 and a first throttle valve 16, the liquid outlet pipe 15 is welded on the outer wall of one side of the casing 1, the first throttle valve 16 is arranged on the outer wall of the liquid outlet pipe 15, and the first valve 14 is rotatably connected to the inner wall of the first throttle valve 16; the flow of oil can be controlled by the first throttle valve 16 and the first valve 14, and the flexibility of sand removal is improved.

In order to ensure the safety of the device, as shown in fig. 2, the pressure relief mechanism comprises a pressure relief valve 11, a pressure valve 12 and a pressure gauge 17, the pressure valve 12 is arranged on the outer wall of the top of the housing 1, the pressure gauge 17 is welded on the outer wall of the pressure valve 12, and the pressure relief valve 11 is rotatably connected to the inner wall of the pressure valve 12; the sand removing device is installed in a closed mode, the internal pressure of the shell 1 is unbalanced due to long-time sand removing operation, the danger is increased, the pressure inside the shell 1 can be monitored in real time through the pressure gauge 17, and therefore the pressure inside the shell 1 is balanced through the pressure relief valve 11.

In order to facilitate the movement of the device, as shown in fig. 3, the moving mechanism includes a pillar 24, a second rotating shaft 25, a universal wheel 26 and a universal wheel bracket 27, the pillar 24 is welded on the outer wall of the bottom of the housing 1, the second rotating shaft 25 is rotatably connected to the outer wall of the bottom of the pillar 24, the universal wheel bracket 27 is welded on the bottom of the second rotating shaft 25, and the universal wheel 26 is rotatably connected to the inner wall of the universal wheel bracket 27; the sand removing device can be freely moved through the universal wheels 26 and the second rotating shaft 25, so that the transportation cost is reduced, and the application range of the equipment is expanded.

The working principle is as follows: the oil to be desanded enters the sieve tube 10, the gravel is retained by the filter holes 7, the sieve tube 10 stores the gravel, the outer wall of the sieve tube 10 is provided with threads which can be rotatably connected to the inner wall of the guide post 29, the sieve tube 10 is convenient to dismantle and replace, the motor 20 drives the second gear 19 to rotate, the second gear 19 drives the first gear 18 to rotate, the first gear 18 drives the first rotating shaft 4 at the bottom of the filter column 28 to rotate, the oil is accelerated to separate out from the leaking hole 9 through centrifugal force, secondary filtering and desanding can be carried out on the oil through the filter plate 13, the working efficiency is improved, the filter plate 13 carries out filtering and desanding for a long time, the gravel is accumulated on the surface of the filter plate 13 and can block the filter plate 13, the desanding efficiency is influenced, the filter plate 13 can be washed through the flushing pipe 3, flushing fluid is discharged from the water outlet pipe 23, the flow of the flushing fluid can be controlled by the second, use cost has been reduced, can control the flow of fluid through first choke valve 16 and first valve 14, the flexibility of degritting has been improved, the degritting device is for sealing the installation, long-time degritting work can lead to the internal pressure imbalance of shell 1, it is dangerous to increase, can carry out real time monitoring to the pressure of shell 1 inside through manometer 17, so that balance the pressure of shell 1 inside through pressure relief valve 11, can carry out the free movement with the degritting device through universal wheel 26 and second pivot 25, transportation cost is reduced, the application range of equipment has been enlarged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an oil recovery is sand removal device for well head, includes shell (1), its characterized in that, shell (1) top is provided with sand removal mechanism and pressure release mechanism, shell (1) both sides outer wall welding has the mechanism of washing, shell (1) bottom outer wall welding has the moving mechanism, shell (1) one side outer wall welding has a liquid mechanism, shell (1) top outer wall welding has lug (8).

2. The sand removing device for the oil production wellhead according to the claim 1, characterized in that the sand removing mechanism comprises a clapboard (2), a first rotating shaft (4), a supporting seat (5), a through hole (6), a filtering hole (7), a leak hole (9), a sieve tube (10), a filtering plate (13), a first gear (18), a second gear (19), a motor (20), a filtering column (28) and a guide column (29), the clapboard (2) and the filter plate (13) are welded on the inner wall of the shell (1), the through hole (6) is arranged on the outer wall of the clapboard (2), the supporting seat (5) is welded on the outer wall of the top of the clapboard (2), the first rotating shaft (4) is rotatably connected with the outer wall of the top of the supporting seat (5), the bottom of the filter column (28) is welded on the outer wall of the top of the first rotating shaft (4), and the leakage hole (9) is formed in the outer wall of the filter column (28).

3. The sand removing device for the oil extraction wellhead as claimed in claim 2, characterized in that the first gear (18) is welded on the outer wall of the top of the filter column (28), the guide pillar (29) is rotatably connected to the outer wall of the top of the first gear (18), the screen pipe (10) is rotatably connected to the inner wall of the guide pillar (29), the filter hole (7) is opened on the outer wall of the screen pipe (10), the second gear (19) is engaged and connected to the outer wall of the first gear (18), and the motor (20) is welded on the top of the second gear (19).

4. The sand removing device for the oil recovery wellhead according to the claim 1, characterized in that the flushing mechanism comprises a flushing pipe (3), a second valve (21), a second throttle valve (22) and a water outlet pipe (23), the flushing pipe (3) and the water outlet pipe (23) are respectively welded on the outer wall of the housing (1) for connection, the second throttle valve (22) is arranged on the outer wall of the water outlet pipe (23), and the second valve (21) is rotatably connected on the inner wall of the second throttle valve (22).

5. The sand removing device for the oil recovery wellhead according to the claim 1, characterized in that the liquid outlet mechanism comprises a first valve (14), a liquid outlet pipe (15) and a first throttle valve (16), the liquid outlet pipe (15) is welded on the outer wall of one side of the casing (1), the first throttle valve (16) is arranged on the outer wall of the liquid outlet pipe (15), and the first valve (14) is rotatably connected to the inner wall of the first throttle valve (16).

6. The desanding device for the oil recovery wellhead according to claim 1, wherein the pressure relief mechanism comprises a pressure relief valve (11), a pressure valve (12) and a pressure gauge (17), the pressure valve (12) is arranged on the outer wall of the top of the housing (1), the pressure gauge (17) is welded on the outer wall of the pressure valve (12), and the pressure relief valve (11) is rotatably connected to the inner wall of the pressure valve (12).

7. The sand removing device for the oil extraction wellhead as claimed in claim 1, characterized in that the moving mechanism comprises a support column (24), a second rotating shaft (25), a universal wheel (26) and a universal wheel bracket (27), the support column (24) is welded on the outer wall of the bottom of the housing (1), the second rotating shaft (25) is rotatably connected on the outer wall of the bottom of the support column (24), the universal wheel bracket (27) is welded on the bottom of the second rotating shaft (25), and the universal wheel (26) is rotatably connected on the inner wall of the universal wheel bracket (27).