CN109424338B - Sand prevention device - Google Patents

Abstract

The embodiment of the invention provides a sand control device, which comprises: barrel (8), vertically welded has fixed plate (2) in the middle of barrel (8) is inside, fixed plate (2) middle part fixed mounting has adsorbed layer (3), barrel (8) top surface one side is provided with oil inlet (5), barrel (8) top surface opposite side is provided with oil-out (1), barrel (8) inside one side is provided with first deflector (7), first deflector (7) middle part welding has first pipe (9), the inside cooperation of sliding of first pipe (9) has first push rod (10), first push rod (10) inner fixed mounting has first push pedal (6). The sand control device provided by the embodiment of the invention improves the sand control effect.

Description

Sand prevention device

Technical Field

The embodiment of the invention relates to the technology of the petroleum industry, in particular to a sand prevention device.

Background

In the oil exploitation industry, the problems of large underground sand content of various oil reservoirs and high sand content and high component content of the produced crude oil are frequently encountered, the large sand content of the crude oil can cause serious abrasion of oil production pipes and other exploitation equipment, oil transmission pipelines are easily blocked, normal exploitation is affected, and the sand prevention treatment is generally required to be carried out on the produced crude oil.

At present, in the process of crude oil exploitation, a filter screen is generally arranged on an oil pipeline of an oil extraction port at the bottom of a shaft or a wellhead to filter silt in crude oil, so that the sand content of the crude oil is reduced.

By adopting the method, the sand control effect is poor.

Disclosure of Invention

The embodiment of the invention provides a sand control device, which is used for improving the sand control effect.

The embodiment of the invention provides a sand control device, which comprises: the oil-saving cleaning device comprises a barrel body, wherein a fixing plate is longitudinally welded in the middle of the inside of the barrel body, an adsorption layer is fixedly installed in the middle of the fixing plate, an oil inlet is formed in one side of the top surface of the barrel body, an oil outlet is formed in the other side of the top surface of the barrel body, a first guide plate is arranged on one side of the inside of the barrel body, a first guide pipe is welded in the middle of the first guide plate, a first push rod is matched in a sliding mode inside the first guide pipe, and a first.

Optionally, the bottom of the cylinder is fixedly connected with a connecting pipe, and a one-way valve is arranged in the middle of the connecting pipe.

Optionally, a spiral spring is horizontally and fixedly mounted at the top end of one side of the adsorption layer, a guide rod is sleeved inside the spiral spring, a stop block is welded at one end of the guide rod, and an extrusion plate is fixedly mounted at the other end of the guide rod.

Optionally, a second guide plate is welded on the other side of the interior of the barrel, a second guide pipe is welded in the middle of the second guide plate, a second push rod is matched with the interior of the second guide pipe in a sliding mode, and a second push plate is fixedly mounted on one side of the second push rod.

Optionally, a rubber sealing layer is stuck on the surfaces of the first pushing plate and the second pushing plate.

Optionally, the adsorption layer is made of a sponge material.

Optionally, the one-way valve is a rotary plate.

Optionally, spiral rubber plugs are mounted on the oil inlet and the oil outlet.

Optionally, the first push rod and/or the second push rod is connected with a power driving device.

According to the sand prevention device provided by the embodiment of the invention, the fixing plate is longitudinally welded in the middle of the interior of the barrel, the adsorption layer is fixedly arranged in the middle of the fixing plate, the oil inlet is formed in one side of the top surface of the barrel, the oil outlet is formed in the other side of the top surface of the barrel, the first guide plate is arranged on one side of the interior of the barrel, the first guide pipe is welded in the middle of the first guide plate, the first push rod is matched in the first guide pipe in a sliding mode, and the first push plate. In the use, pour into the barrel through the crude oil that the oil inlet will need to handle into inside, promote first push rod for first push pedal removes to the fixed plate direction, and crude oil flows through the adsorbed layer of through-hole or gap and fixed plate opposite side in the middle of adsorbed layer and the fixed plate under the promotion of first push pedal, reaches barrel one side at oil-out place, flows out through the oil-out, accomplishes the sand control. According to the device provided by the invention, the crude oil flows through the adsorption layer under the action of thrust, and gravel is adsorbed by the adsorption layer, so that the sand prevention effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a first embodiment of a sand control device according to the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of a sand control device of the present invention;

FIG. 3 is a schematic structural diagram of a third embodiment of a sand control device according to the present invention;

FIG. 4 is a schematic structural view of a rotating plate in a connecting pipe of the sand control device of the present invention;

FIG. 5 is a schematic structural diagram of a fourth sand control device according to an embodiment of the invention;

FIG. 6 is a schematic structural diagram of a fifth sand control device embodiment of the present invention;

fig. 7 is a schematic structural diagram of a sixth embodiment of the sand control device of the present invention.

Reference numerals

1: an oil outlet;

2: a fixing plate;

3: an adsorption layer;

4: a coil spring;

5: an oil inlet;

6: a first push plate;

7: a first guide plate;

8: a barrel;

9: a first conduit;

10: a first push rod;

11: a stopper;

12: a guide bar;

13: a connecting pipe;

14, a one-way valve;

15, extruding a plate;

16, a second push rod;

17: a second conduit;

18, a second guide plate;

19: a second push plate;

and 20, a rubber sealing layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of a first sand control device according to an embodiment of the present invention, and as shown in fig. 1, the sand control device provided in this embodiment includes: the barrel 8, the inside middle longitudinal welding of barrel 8 has fixed plate 2, fixed plate 2 middle part fixed mounting has adsorbed layer 3, 8 top surface one side of barrel is provided with oil inlet 5, 8 top surface opposite side of barrel is provided with oil-out 1, the inside one side welding of barrel has first deflector 7, the welding of 7 middle parts of first deflector has first pipe 9, the inside cooperation of sliding of first pipe 9 has first push rod 10, first push rod 10 inner fixed mounting has first push pedal 6.

The working principle is as follows:

inject the inside one side of barrel 8 into through the crude oil that oil inlet 5 will need to handle, promote first push rod 10, make first push pedal 6 remove to 2 directions of fixed plate, crude oil passes through the adsorbed layer 3 of fixed plate 2 one side under the promotion of first push pedal 6, the adsorbed layer 3 of fixed plate 2 and the 2 opposite sides of fixed plate flows through, reach the inside opposite side of barrel at 1 place of oil-out, flow out through oil-out 1, accomplish the sand control, wherein, can set up the through-hole on the fixed plate 2, perhaps gap etc., so that crude oil circulates. The sand control device provided by the invention has the advantages that the crude oil flows through the adsorption layer under the action of the thrust force, and the gravel in the crude oil is adsorbed by the adsorption layer, so that the sand control effect is achieved.

In the actual operation process, for further promoting sand control effect, can make a round trip to twitch first push rod 10 for crude oil is making a round trip to flow in the both sides of fixed plate 2, adsorbs the gravel in the crude oil through the adsorbed layer 3 that fixed plate 2 both sides set up repeatedly. When promoting first push rod 10 and being close to the direction of fixed plate 2, crude oil flows to the opposite side cavity of the barrel 8 at oil-out 1 place by the one side cavity of the barrel 8 at oil-in 5 place, when the direction of fixed plate 2 is kept away from to the first push rod 10 of pulling, because produce the negative pressure in the barrel 8 cavity, crude oil flows to the cavity of the opposite side of the barrel 8 at oil-in 5 place by the one side cavity of the barrel 8 at oil-out 1 place, so repeatedly carry out the push-and-pull to first push rod, make crude oil come and go to flow through adsorbed layer 3, adsorb crude oil repeatedly, thereby further reduced the sand content of crude oil, the sand control effect has been promoted.

Alternatively, the above-mentioned adsorption layer 3 may be made of sponge. The sponge has good liquid permeability, and solid particles with different sizes can be adsorbed by selecting the sponge with different pore diameters. The adsorption layer 3 may be made of other adsorption materials, but the present invention is not limited thereto.

On the basis of the embodiment shown in fig. 1, the bottom of the cylinder 8 may be further fixedly connected with a connecting pipe 13, and a check valve 14 is disposed in the middle of the connecting pipe 13, as shown in fig. 2. The bottom of the cylinder 8 is fixedly connected with a connecting pipe 13, and the bottom of the cylinder 8 is correspondingly provided with a through hole at the joint of the connecting pipe 13, so that the connecting pipe 13 is communicated with the inner cavity of the cylinder 8; a check valve 14 is arranged in the middle of the connecting pipe 13, and the check valve 14 can keep the crude oil flowing in one direction in the connecting pipe 13.

The sand control device shown in fig. 2, when the first push plate 6 is pushed by the first push rod 10 to move toward the fixed plate 2, crude oil flows from the cavity at one side of the cylinder 8 where the oil inlet 5 is positioned to the cavity at the other side of the cylinder 8 where the oil outlet 1 is positioned, since the direction of the check valve 14 is set to be conducted from the side where the oil outlet 1 is located to the other side where the oil inlet 5 is located, in the process of adsorbing the crude oil, the flowing path of the crude oil does not pass through the fixed plate 2 and the adsorption layers 3 at the two sides of the fixed plate back and forth, but through the connection pipe 13 and the check valve 14, so that the path of the treated crude oil forms a one-way adsorption loop, this one-way adsorption loop is owing to do not have crude oil and makes a round trip to flow on same section route, then has reduced because crude oil makes a round trip to flow and leads to the probability that the gravel that has adsorbed drops to crude oil again in the adsorbed layer 3 to sand control effect has further been promoted.

Alternatively, the check valve 4 in the above embodiment may be a rotary piece.

Wherein the rotating plate is inclined at a certain angle inside the connecting pipe 13, and the top end of the rotating plate is hinged with the connecting pipe 13, as shown in fig. 4. When crude oil flows from one end of the connecting pipe 13 to the other end, the bottom of the rotating sheet is opened under the action of the flow force of the crude oil, so that the connecting pipe 13 is conducted; when crude oil reversely flows, the rotating piece is clamped on the pipe wall of the connecting pipe 13 due to the limitation of the size and the angle of the rotating piece, so that reverse cut-off is formed, and the crude oil is blocked from flowing.

Optionally, a filter screen can be arranged at the connection position of the through hole of the connecting pipe 13 and the cylinder 8 to further filter gravel in the crude oil; the connecting pipe 13 can be connected with the cylinder 8 and the filter screen in a detachable mode, so that the connecting pipe 13 and the filter screen can be cleaned and maintained conveniently.

In the above embodiment, the first push rod 10 can be pulled back and forth to circulate the crude oil through the one-way adsorption loop, so as to enhance the adsorption effect and further reduce the sand content of the crude oil.

On the basis of the embodiment of fig. 2, a spiral spring 4 may be horizontally and fixedly installed at the top end of one side of the adsorption layer 3, a guide rod 12 is sleeved inside the spiral spring 4, a stopper 11 is welded at one end of the guide rod 12, and a pressing plate 15 is fixedly installed at the other end of the guide rod 12, as shown in fig. 3.

Specifically, when first push pedal 6 pushed to dog 11 position, dog 11 received the driving force of first push pedal 6, can produce the extrusion force to coil spring 4, coil spring 4 is owing to receive the extrusion force of dog 11, produce deformation, play the effect of buffering to the promotion of first push pedal 6 through dog 11, be close to fixed plate 2 along with first push pedal 6, coil spring 4's elasticity is big more, resistance to first push pedal through dog 11 is big more, first push pedal 6 stops 2 directions of looks fixed plate to promote when receiving certain resistance promptly, avoid adsorbed layer 3 to receive the excessive extrusion of first push pedal 6 and cause equipment wearing and tearing and damage.

The other end fixed mounting of guide arm 12 has stripper plate 15, and stripper plate 15 has covered a side surface of homonymy adsorbed layer 3, has reduced this side adsorbed layer 3 and has adsorbed the volume once more to crude oil for more crude oil passes through the 8 inner chambers of barrel of pipe 13 flow direction oil inlet 5 one side, and not the through-hole that sets up through adsorbed layer 3 and fixed plate 2 flows, thereby has improved crude oil uniflow volume, has further promoted the sand control effect.

Wherein, can be through setting up the length of guide arm 12, make the position of dog 11 be located oil inlet 5 and be close to the one side of first baffle direction, thereby prevent that the position of first push pedal 6 exceeds the position of oil inlet 5 in the promotion process of first push pedal 6 to fixed plate 2 direction, so that the crude oil of injecting into through oil inlet 5 injects into the cavity of barrel 8 smoothly inside, and can not be because of first push pedal 6 excessively be close to when adsorbed layer 3, the condition that crude oil injection is unusual such as oil inlet 5 is blockked up by first push pedal 6 top or oil inlet 5 is in cavity in the middle of first push pedal 6 and first baffle 7 takes place.

In the embodiment of the above-mentioned fig. 3, there is coil spring 4 through 3 top level fixed mounting on adsorbed layer, and coil spring 4 is inside to be cup jointed guide arm 12, and the welding of 12 one ends of guide arm has dog 11, and 12 other end fixed mounting of guide arm has stripper plate 15, can effective protective apparatus because the wearing and tearing and the damage that excessively extrude and produce to and improve crude oil uniflow volume, thereby further promoted sand control effect. The lengths and the positions of the guide rod 12 and the stop block 11 are reasonably arranged, and the abnormal injection of crude oil can be avoided.

On the basis of the above-mentioned fig. 1-3, a second guide plate 18 can be welded on the other side inside the cylinder 8, a second guide pipe 17 is welded in the middle of the second guide plate 18, a second push rod 16 is slidably fitted inside the second guide pipe 17, and a second push plate 19 is fixedly mounted on one side of the second push rod 16.

Fig. 5 is an example based on fig. 3.

As shown in fig. 5, a second guide plate 18 is welded at the other side of the inside of the cylinder 8, a second guide pipe 17 is welded at the middle part of the second guide plate 18, a second push rod 16 is slidably fitted inside the second guide pipe 17, and a second push plate 19 is fixedly mounted at one side of the second push rod 16.

Specifically, when crude oil needs to flow from the side where the oil outlet 1 is located to the side where the oil inlet 5 is located through the connecting pipe 13, the second push plate 19 can be pushed by pushing the second push rod 16, so that the crude oil flows to the cavity on the side of the barrel 8 where the oil inlet 5 is located through the connecting pipe 13 and the check valve 14 under the thrust action of the second push plate 19.

In this embodiment, the first push rod 10 and the first push plate 6 are used to push the crude oil from the cavity on one side of the cylinder 8 where the oil inlet 5 is located to one side of the cylinder 8 where the oil outlet 1 is located, and the second push rod 16 is used to push the second push plate 19 to push the crude oil toward the fixed plate 2, so that the crude oil passes through the connecting pipe 13, flows through the check valve 14, and pushes the crude oil from the cavity on one side of the cylinder 8 where the oil outlet 1 is located to the cavity on the other side of the cylinder 8 where the oil inlet 5 is located, thereby forming a one-way loop to adsorb the crude oil. Two push rods and a push plate are arranged on two sides of the cylinder body 8 to push crude oil back and forth to perform sand prevention treatment, the requirement on the sealing degree of the cylinder body 8 is lowered, and the second push rod 16 is pushed to pull the first push rod 10, so that the operation is simpler and more convenient.

Fig. 6 is an example based on fig. 1.

As shown in fig. 6, the first and second guide tubes 9 and 17, the first and second guide plates 7 and 18, the first and second push rods 10 and 16, and the first and second push plates 6 and 19 are respectively disposed at two sides of the cylinder 8, so that crude oil can be pushed by the push rods at two ends when flowing, and the crude oil repeatedly flows through the fixing plate 2 and the adsorption layers 3 at two sides of the fixing plate 2 under the action of the push forces at two ends.

Fig. 7 is an example based on fig. 2.

As shown in fig. 7, the first and second guide tubes 9 and 17, the first and second guide plates 7 and 18, the first and second push rods 10 and 16, and the first and second push plates 6 and 19 are respectively disposed at two sides of the cylinder 8, so that crude oil can be pushed by the push rods at two ends when flowing, and the crude oil repeatedly flows through the fixing plate 2 and the adsorption layers 3 at two sides of the fixing plate 2 under the action of the push forces at two ends. Fixed plate 2 both sides respectively at 3 top horizontal positions fixed mounting on adsorbed layer have coil spring 4, coil spring 4 is inside to have cup jointed guide arm 12, 12 both ends of guide arm have welded dog 11 respectively and have made both sides adsorbed layer 3 can not cause equipment wear and tear and damage because of receiving the excessive extrusion of first push pedal 6 and second push pedal 19 to length through setting up guide arm 12 sets up the position of dog 11, can reduce the crude oil and pour into and export unusual circumstances.

Optionally, the foregoing embodiment may further include: the first push plate 6 and the second push plate 19 are adhered with rubber sealing layers 20 on the surfaces.

The rubber sealing layer 20 is adhered to the first push plate 6 and the second push plate 19, so that the inner cavity of the cylinder 8 can be better sealed, the possibility of oil leakage is reduced, the reliability of the equipment is improved, and the rubber sealing layer 20 can also effectively reduce the friction between the cavity and the push plates, so that the equipment is protected. The material of the sealing layer may be rubber, or other materials with sealing function, such as silicone, etc., and the present invention is not limited thereto.

On the basis of the above embodiments, the method may further include: and spiral rubber plugs are arranged on the oil inlet 5 and the oil outlet 1.

The spiral rubber plug has a spiral structure and elastic characteristics of rubber materials, so that the oil inlet 5 and the oil outlet 1 can be better sealed. Naturally, the oil inlet 5 and the oil outlet 1 may also adopt other means capable of achieving the sealing effect, and the invention is not limited thereto.

Optionally, the oil inlet 5 and the oil outlet 1 can be respectively connected with an oil inlet device and an oil outlet device, so that automatic oil inlet and oil outlet are realized, and the sand control efficiency is further improved.

In addition to the above embodiments, the first push rod (10) and/or the second push rod (16) may be connected to a power driving device.

In order to further improve the sand prevention efficiency, the first push rod (10) and/or the second push rod (16) in the above embodiments are connected with a power driving device, the power driving device may use electric power as power supply, and the power form may be pneumatic or hydraulic, etc., and the invention is not limited thereto.

The sand control device provided by the embodiment of the invention can be suitable for any scene needing to remove solid particles in liquid, can also be used for performing sand control treatment on crude oil in the oil exploitation industry, and is not limited by the invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A sand control device, comprising: barrel (8), vertically welded has fixed plate (2) in the middle of barrel (8) is inside, fixed plate (2) middle part fixed mounting has adsorbed layer (3), barrel (8) top surface one side is provided with oil inlet (5), barrel (8) top surface opposite side is provided with oil-out (1), the welding of barrel (8) inside one side has first deflector (7), the welding of first deflector (7) middle part has first pipe (9), the inside cooperation of sliding of first pipe (9) has first push rod (10), first push rod (10) inner fixed mounting has first push pedal (6), barrel (8) bottom fixedly connected with connecting pipe (13), connecting pipe (13) middle part is provided with check valve (14).

2. The sand control device according to claim 1, wherein a spiral spring (4) is horizontally and fixedly installed at the top end of one side of the adsorption layer (3), a guide rod (12) is sleeved inside the spiral spring (4), a stop block (11) is welded at one end of the guide rod (12), and an extrusion plate (15) is fixedly installed at the other end of the guide rod (12).

3. The sand control device according to claim 1 or 2, characterized in that a second guide plate (18) is welded on the other side in the cylinder body (8), a second guide pipe (17) is welded in the middle of the second guide plate (18), a second push rod (16) is slidably matched in the second guide pipe (17), and a second push plate (19) is fixedly installed on one side of the second push rod (16).

4. The sand control device of claim 3, wherein: and rubber sealing layers (20) are adhered to the surfaces of the first push plate (6) and the second push plate (19).

5. The sand control device of claim 4, wherein: the adsorption layer (3) is made of sponge materials.

6. The sand control device of claim 1, the one-way valve (14) being a rotating plate.

7. Sand control device according to claim 5, characterized in that spiral rubber plugs are mounted on the oil inlet (5) and the oil outlet (1).

8. Sand control device according to claim 3, characterized in that the first push rod (10) and/or the second push rod (16) is connected to a power drive.

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