CN215907820U - Solid paraffin control device - Google Patents

Abstract

The utility model belongs to the field of wax control devices, and particularly relates to a solid wax control device which comprises an oil pump, an oil inlet pipe, a wax control pipe and a sieve pipe, wherein the oil pump is fixedly connected with the top end of the oil inlet pipe; the mounting assembly comprises a first mounting ring, a second mounting ring, a support block and a limiting block, and the first mounting ring is sleeved at the bottom end of the oil inlet pipe and the bottom end of the paraffin-proof pipe; through the cooperation between the mounting ring I, the mounting ring II, the arc spacing groove, a piece, a limiting block, a spring I and the locating piece, the staff of being convenient for dismantles installation to paraffin control pipe and screen pipe, and then the staff of being convenient for changes the paraffin control piece in the paraffin control pipe and clears up the descaling to the inside of screen pipe, through screen pipe cooperation sieve realized crude oil get into filter layer upon layer when paraffin control pipe, avoided among the impurity entering paraffin control pipe in the crude oil.

Description

Solid paraffin control device

Technical Field

The utility model relates to the field of wax control devices, in particular to a solid wax control device.

Background

As the stratum water of an oil field is generally high in mineralization degree, the comprehensive water content of the oil well is continuously improved along with the development of the oil field, the wax-proof corrosion of a production pipe column becomes serious day by day after the oil field has medium and high water content, and great harm is caused to the production of crude oil, and when the crude oil of the oil field is exploited, the scaling, wax precipitation and corrosion wax precipitation are accumulated in the oil well pipe column and underground equipment, so that accidents such as pipe diameter reduction, shot hole blockage, pump leakage, sucker rod breaking, oil pipe leakage, oil pipe falling and the like can be caused.

Scaling, waxing and corrosion of the pipe column not only affect the lifting capacity of a shaft and reduce the service life of a pump and the pipe column, but also easily cause underground accidents, shorten the pump detection period and seriously affect the normal production of an oil well, and the wax-proof device can control the dissolving speed of the wax-proof device in crude oil and a device with proper dissolving speed of different oil layer temperatures by adjusting the proportion of various components in the formula of the wax-proof block; therefore, a solid paraffin control device has been proposed to address the above problems.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art and solve the problem that the conventional wax-proof device is in threaded connection through a coupling, and the later-period disassembly of the wax-proof device is inconvenient after sand permeates into the joint of the coupling and the wax-proof device, the utility model provides the solid wax-proof device.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the solid paraffin control device comprises an oil pump, an oil inlet pipe, a paraffin control pipe and a sieve pipe, wherein the oil pump is fixedly connected with the top end of the oil inlet pipe;

the installation component comprises a first installation ring, a second installation ring, a support block and a limiting block, the bottom end of the oil inlet pipe and the bottom end of the wax-proof pipe are both sleeved with the first installation ring, the top end of the wax-proof pipe and the top end of the sieve pipe are both sleeved with the second installation ring, the bottom end surface of the first installation ring is provided with two arc-shaped limiting grooves, one ends of the arc-shaped limiting grooves are provided with openings, the bottom of the inner wall of the other end of each arc-shaped limiting groove is provided with a positioning groove, the top end of the second installation ring is fixedly connected with the two support blocks, the end surfaces of the opposite sides of the two support blocks are both fixedly connected with the limiting block, the bottom of the limiting block is attached to the positioning groove through an elastic positioning component, the cross section of each arc-shaped limiting groove is in an inverted L shape, the support blocks and the limiting block are both in sliding connection with the arc-shaped limiting grooves, and through the matching among the first installation ring, the second installation ring, the arc-shaped limiting grooves, the support blocks, the limiting blocks and the elastic positioning component, the installation is dismantled to the staff of being convenient for to paraffin control pipe and screen pipe, and then the staff of being convenient for changes the paraffin control piece in the paraffin control pipe and clears up the descaling to the inside of screen pipe.

Preferably, the elastic positioning assembly comprises a first spring and a first positioning block, the bottom end face of the limiting block is provided with a groove, the inner wall of the groove is fixedly connected with the first spring, the other end of the first spring is fixedly connected with the first positioning block, the first positioning block is attached to the first positioning groove, one end of the first positioning block, which is away from the first spring, is hemispherical, one end of the first positioning block, which is away from the first spring, is provided with magnetism, the inner wall of the first positioning groove is fixedly provided with a magnetic block, the limiting block can be fixed in the arc-shaped limiting groove through the cooperation of the first spring, the first positioning block and the first positioning groove, and the auxiliary positioning effect is achieved on subsequent bolt connection.

Preferably, the arc spacing groove is kept away from and is equipped with the ladder groove on the open-ended one end inside wall, one side that a piece deviates from the stopper is equipped with the thread groove, thread groove and bolt threaded connection, the other end of bolt runs through the ladder groove, the inner wall top threaded connection of paraffin control pipe has solid fixed ring, carries out threaded connection through running through the thread groove on ladder groove and the stopper with the bolt, further makes the stopper obtain fixing, avoids the slip of stopper to cause the not hard up of collar one and collar two.

Preferably, gu even being equipped with a plurality of inner chambers on the fixed ring, fixedly connected with spring two in the fixed ring's the inner chamber, the top rigid coupling of spring two has T type piston rod, the bottom rigid coupling of solid fixed ring and sieve two is run through on the top of T type piston rod, the bottom of T type piston rod and solid fixed ring's inner chamber sliding connection are convenient for adjust the flux of crude oil through solid fixed ring, spring two, the cooperation between T type piston rod and the sieve two.

Preferably, the sieve is even on two and is equipped with a plurality of through-holes, the bottom terminal surface that advances oil pipe and wax-proofing pipe all is equipped with the annular seal groove, the equal rigid coupling in top of wax-proofing pipe and sieve pipe has the sealing ring, the sealing ring laminates mutually with the annular seal groove and passes through the cooperation between sealing ring and the annular seal groove, has guaranteed the leakproofness between advancing oil pipe and wax-proofing pipe and the sieve pipe, avoids revealing of crude oil.

Preferably, the bottom end of the inner wall of the paraffin control pipe is fixedly connected with a first sieve plate, the diameter of a sieve hole in the first sieve plate is smaller than that of a sieve hole in the side wall of the sieve pipe, crude oil is filtered layer by layer when entering the paraffin control pipe through the sieve pipe matched with the sieve plate, and impurities in the crude oil are prevented from entering the paraffin control pipe.

The utility model has the advantages that:

1. according to the utility model, through the matching among the first mounting ring, the second mounting ring, the arc-shaped limiting groove, the support block, the limiting block, the first spring and the positioning block, workers can conveniently detach and mount the paraffin control pipe and the sieve pipe, and then can conveniently replace the paraffin control block in the paraffin control pipe and clean and descale the interior of the sieve pipe;

2. according to the utility model, the flow of crude oil can be reduced through the sieve plate II arranged at the top end of the fixing ring, so that the crude oil can be fully fused with the paraffin prevention block after entering the paraffin prevention pipe, the flow of the crude oil can be conveniently adjusted through the matching among the fixing ring, the spring II, the T-shaped piston rod and the sieve plate II, the layer-by-layer filtration of the crude oil when entering the paraffin prevention pipe is realized through the matching of the sieve plate and the sieve plate, and the impurities in the crude oil are prevented from entering the paraffin prevention pipe.

Drawings

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

FIG. 1 is a schematic overall perspective view of a first embodiment;

FIG. 2 is a partial schematic internal diagram according to a first embodiment;

FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 2;

FIG. 4 is a schematic view of a portion of the enlarged structure at B in FIG. 2;

FIG. 5 is a schematic view of the internal structure of a first mounting ring according to a first embodiment;

fig. 6 is a partial structural schematic diagram in the second embodiment.

In the figure: 1. an oil pump; 2. an oil inlet pipe; 3. an anti-wax pipe; 4. a screen pipe; 5. mounting a ring I; 6. a second mounting ring; 7. an arc-shaped limiting groove; 8. Positioning a groove; 9. supporting a block; 10. a limiting block; 11. a first spring; 12. positioning blocks; 13. a thread groove; 14. a bolt; 15. a first sieve plate; 16. A fixing ring; 17. a second spring; 18. a T-shaped piston rod; 19. a second sieve plate; 20. a limit ring.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Example one

Referring to fig. 1-5, the solid paraffin control device includes an oil pump 1, an oil inlet pipe 2, a paraffin control pipe 3 and a sieve pipe 4, wherein the oil pump 1 is fixedly connected to the top end of the oil inlet pipe 2, the bottom end of the oil inlet pipe 2 is fixedly connected to the top end of the paraffin control pipe 3 through a mounting assembly, and the bottom end of the paraffin control pipe 3 is fixedly connected to the top end of the sieve pipe 4 through a mounting assembly; the installation component comprises a first installation ring 5, a second installation ring 6, support blocks 9 and limit blocks 10, the first installation ring 5 is sleeved at the bottom end of the oil inlet pipe 2 and the bottom end of the wax-proof pipe 3, the second installation ring 6 is sleeved at the top end of the wax-proof pipe 3 and the top end of the sieve pipe 4, two arc-shaped limit grooves 7 are formed in the end face of the bottom of the first installation ring 5, an opening is formed in one end of each arc-shaped limit groove 7, a positioning groove 8 is formed in the bottom of the inner wall of the other end of each arc-shaped limit groove 7, the two support blocks 9 are fixedly connected to the top end of the second installation ring 6, the limit blocks 10 are fixedly connected to the end faces, opposite to the support blocks 9, of the two support blocks 10, the bottoms of the limit blocks 10 are attached to the positioning groove 8 through elastic positioning components, the cross section of each arc-shaped limit groove 7 is in an inverted L shape, the support blocks 9 and the limit blocks 10 are slidably connected with the arc-shaped limit grooves 7, when the wax-proof pipe 3 and the sieve pipe 4 are vertically placed into an oil well by an operator, the oil pump 1 is opened, crude oil in the oil well enters the sieve pipe 4 through sieve holes on the sieve pipe 4 and enters the wax-proof pipe 3 through a sieve plate to be melted with a wax-proof block, when the wax-proof pipe 3 needs to be replaced and installed, the operator enables the branch block 9 and the limiting block 10 on the installation ring II 6 to correspond to an opening arranged at one end of an arc-shaped limiting groove 7 on the installation ring I5 and enables the branch block 9 and the limiting block 10 to slide into the arc-shaped limiting groove 7 through the opening, the operator drives the installation ring II 6 to rotate through rotating the wax-proof pipe 3 to enable the limiting block 10 to slide to the other end of the arc-shaped limiting groove 7, the limiting block 10 is fixed in the arc-shaped limiting groove 7 through an elastic positioning component arranged at the bottom of the limiting block 10, the installation ring II 6 is further fixed with the installation ring I5, and the operator can conveniently detach and install the wax-proof pipe 3 preliminarily, and then be convenient for the staff to change the paraffin control block in the paraffin control pipe 3, be convenient for the staff through the installation component with sieve pipe 4 and the separation of the dismantlement of paraffin control pipe 3, and then the staff of being convenient for regularly clears up the scale removal to the inside of sieve pipe 4.

The elastic positioning assembly comprises a first spring 11 and a positioning block 12, a groove is formed in the bottom end face of the limiting block 10, a first spring 11 is fixedly connected to the inner wall of the groove, a positioning block 12 is fixedly connected to the other end of the first spring 11, the positioning block 12 is attached to the positioning groove 8, one end, away from the first spring 11, of the positioning block 12 is hemispherical, one end, away from the first spring 11, of the positioning block 12 is magnetic, a magnetic block is fixedly connected to the inner wall of the positioning groove 8, when the limiting block 10 slides into the arc-shaped limiting groove 7 in work, the first spring 11 is in a compressed state, when the limiting block 10 slides to the position above the positioning groove 8, the elastic potential energy of the first spring 11 drives the positioning block 12 to slide out of the groove and attach to the positioning groove 8, and one end, away from the first spring 11, of the positioning block 12 is magnetic, so that the magnetic blocks on the inner walls of the positioning block 12 and the positioning groove 8 are mutually adsorbed, and the fixing effect is enhanced, the limiting block 10 can be fixed in the arc-shaped limiting groove 7, and the auxiliary positioning effect on the subsequent bolt 14 connection is achieved;

the inner side wall of one end, far away from the opening, of the arc-shaped limiting groove 7 is provided with a stepped groove, one side, away from the limiting block 10, of the support block 9 is provided with a threaded groove 13, the threaded groove 13 is in threaded connection with a bolt 14, the other end of the bolt 14 penetrates through the stepped groove, the top end of the inner wall of the paraffin control pipe 3 is in threaded connection with a fixing ring 16, and when the positioning block 12 is attached to the positioning groove 8 in work, a worker penetrates through the stepped groove and is in threaded connection with the threaded groove 13 in the limiting block 10 through the bolt 14, so that the limiting block 10 is further fixed, and the phenomenon that the first mounting ring 5 and the second mounting ring 6 are loosened due to sliding of the limiting block 10 is avoided;

a plurality of inner cavities are uniformly arranged on the fixing ring 16, a second spring 17 is fixedly connected in the inner cavity of the fixing ring 16, the top end of the second spring 17 is fixedly connected with a T-shaped piston rod 18, the top end of the T-shaped piston rod 18 penetrates through the fixing ring 16 and is fixedly connected with the bottom end of the second sieve plate 19, the bottom of the T-shaped piston rod 18 is connected with the inner cavity of the fixing ring 16 in a sliding way, and when in work, the flow rate of crude oil can be reduced through the sieve plate II 19 arranged at the top end of the fixing ring 16, so that the crude oil can be fully fused with the paraffin prevention block after entering the paraffin prevention pipe 3, when the flow of the crude oil needs to be increased, a worker needs to increase the working gear of the oil pump 1, so that the oil pump 1 generates a larger suction force to drive the crude oil to eject the second sieve plate 19 out and separate the second sieve plate 19 from the fixed ring 16, more crude oil can conveniently pass through the second sieve plate 19, when the oil pump 1 restores to the original working gear, the second sieve plate 19 is driven to restore to the original position by the elastic potential energy of the second spring 17 to continue to limit the flow of the crude oil;

a plurality of through holes are uniformly formed in the second sieve plate 19, annular sealing grooves are formed in the end faces of the bottoms of the oil inlet pipe 2 and the wax-proof pipe 3, sealing rings are fixedly connected to the top ends of the wax-proof pipe 3 and the sieve pipe 4, the sealing rings are attached to the annular sealing grooves, and when the sieve plate works, the sealing performance between the oil inlet pipe 2 and the wax-proof pipe 3 and the sealing performance between the wax-proof pipe 3 and the sieve pipe 4 are guaranteed and crude oil leakage is avoided through the matching between the sealing rings and the annular sealing grooves;

the inner wall bottom rigid coupling of wax control pipe 3 has sieve 15, sieve mesh diameter on the sieve 15 is less than the sieve mesh diameter on the sieve pipe 4 lateral wall, and the during operation is because sieve mesh diameter on the sieve 15 is less than the sieve mesh diameter on the sieve pipe 4 lateral wall for crude oil has passed through and has filtered layer upon layer when getting into wax control pipe 3, has avoided among the impurity entering wax control pipe 3 in the crude oil.

Example two

Referring to fig. 6, in a first comparative example, as another embodiment of the present invention, a limiting ring 20 is fixedly connected to the top of the inner wall of the paraffin prevention pipe 3, and a top end surface of the limiting ring 20 is attached to a bottom end surface of the fixing ring 16; during operation, the spacing ring 20 that is equipped with through the 3 inner walls of paraffin control pipe makes the staff play supplementary spacing effect when carrying out threaded connection to solid fixed ring 16, avoids solid fixed ring 16 not hard up when the screw thread installation to drop, influences the restriction of solid fixed ring 16 to the crude oil flux, and then is convenient for during the staff will gu fixed ring 16 installation screw in paraffin control pipe 3's inner chamber.

The working principle is that when an operator puts the wax-proof pipe 3 and the sieve pipe 4 into an oil well vertically, the oil pump 1 is opened, crude oil in the oil well enters the sieve pipe 4 through sieve holes on the sieve pipe 4 and enters the wax-proof pipe 3 through the sieve plate to be dissolved with the wax-proof block, when the installation of the wax-proof pipe 3 needs to be replaced, the operator enables the support block 9 and the limiting block 10 on the mounting ring II 6 to correspond to an opening arranged at one end of the arc-shaped limiting groove 7 on the mounting ring I5 and enables the support block 9 and the limiting block 10 to slide into the arc-shaped limiting groove 7 through the opening, the operator drives the mounting ring II 6 to rotate through rotating the wax-proof pipe 3 to enable the limiting block 10 to slide to the other end of the arc-shaped limiting groove 7, when the limiting block 10 slides into the arc-shaped limiting groove 7, the spring I11 is in a compressed state, and when the limiting block 10 slides to the upper side of the positioning groove 8, the positioning block 12 is driven by elastic potential energy of the spring I11 to slide out of the groove to be attached to the positioning groove 8, because the end of the positioning block 12, which is far away from the spring I11, has magnetism, the positioning block 12 and the magnetic block on the inner wall of the positioning groove 8 are mutually adsorbed, the fixing effect is enhanced, the limiting block 10 can be fixed in the arc-shaped limiting groove 7, and the subsequent bolt 14 connection has an auxiliary positioning effect, when the positioning block 12 is attached to the positioning groove 8, a worker can penetrate through the stepped groove and be in threaded connection with the threaded groove 13 on the limiting block 10 through the bolt 14, the limiting block 10 is further fixed, the looseness of the mounting ring I5 and the mounting ring II 6 caused by the sliding of the limiting block 10 is avoided, the worker can conveniently detach and mount the wax-proof pipe 3, the worker can conveniently replace the wax-proof block in the wax-proof pipe 3, the worker can conveniently detach and separate the sieve pipe 4 from the wax-proof pipe 3 through the mounting assembly, and can conveniently clean and descale the inside of the sieve pipe 4 regularly, the flow of crude oil can be reduced through the sieve plate II 19 arranged at the top end of the fixing ring 16, the crude oil can be fully fused with the wax-proof block after entering the wax-proof pipe 3, when the flow of the crude oil needs to be increased, a worker needs to increase the working gear of the oil pump 1, so that the oil pump 1 generates larger suction to drive the crude oil to eject the sieve plate II 19 out and separate the sieve plate II from the fixing ring 16, more crude oil can conveniently pass through the sieve plate II 19, when the oil pump 1 restores the original working gear, the elastic potential energy of the spring II 17 drives the sieve plate II 19 to restore the original position to continue limiting the flow of the crude oil, the sealing performance between the oil inlet pipe 2 and the wax-proof pipe 3 as well as between the wax-proof pipe 3 and the sieve pipe 4 is ensured through the matching between the sealing ring and the annular sealing groove, the leakage of the crude oil is avoided, because the diameter of the sieve holes on the side wall of the sieve pipe 4 on the sieve plate I15 is smaller, the crude oil is filtered layer by layer upon layer when entering the wax-proof pipe 3, the impurities in the crude oil are prevented from entering the paraffin control pipe 3.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (6)

1. The solid paraffin control device is characterized in that: the oil pump is characterized by comprising an oil pump (1), an oil inlet pipe (2), a wax-proof pipe (3) and a sieve pipe (4), wherein the oil pump (1) is fixedly connected with the top end of the oil inlet pipe (2), the bottom end of the oil inlet pipe (2) is fixedly connected with the top end of the wax-proof pipe (3) through a mounting assembly, and the bottom end of the wax-proof pipe (3) is fixedly connected with the top end of the sieve pipe (4) through a mounting assembly;

the installation component comprises a first installation ring (5), a second installation ring (6), support blocks (9) and limit blocks (10), the first installation ring (5) is sleeved at the bottom end of the oil inlet pipe (2) and the bottom end of the wax-proof pipe (3), the second installation ring (6) is sleeved at the top end of the wax-proof pipe (3) and the top end of the sieve pipe (4), two arc-shaped limit grooves (7) are formed in the bottom end face of the first installation ring (5), an opening is formed in one end of each arc-shaped limit groove (7), a positioning groove (8) is formed in the bottom of the inner wall of the other end of each arc-shaped limit groove (7), the two support blocks (9) are fixedly connected to the top end faces of the second installation ring (6), the limit blocks (10) are fixedly connected to the end faces of the opposite sides of the two support blocks (9), the bottoms of the limit blocks (10) are attached to the positioning groove (8) through elastic positioning components, the cross sections of the arc-shaped limit grooves (7) are inverted L-shaped, the supporting block (9) and the limiting block (10) are both connected with the arc-shaped limiting groove (7) in a sliding mode.

2. The solid paraffin control device of claim 1, wherein: the elastic positioning assembly comprises a first spring (11) and a positioning block (12), the bottom end face of the limiting block (10) is provided with a groove, the inner wall of the groove is fixedly connected with the first spring (11), the other end of the first spring (11) is fixedly connected with the positioning block (12), the positioning block (12) is attached to the positioning groove (8), one end of the positioning block (12), which deviates from the first spring (11), is hemispherical, one end of the positioning block (12), which deviates from the first spring (11), is provided with magnetism, and the inner wall of the positioning groove (8) is fixedly connected with a magnetic block.

3. The solid paraffin control device of claim 2, wherein: arc spacing groove (7) are kept away from and are equipped with the ladder groove on the open-ended one end inside wall, one side that deviates from stopper (10) in piece (9) is equipped with thread groove (13), thread groove (13) and bolt (14) threaded connection, the other end of bolt (14) runs through the ladder groove, the inner wall top threaded connection of paraffin control pipe (3) has solid fixed ring (16).

4. The solid paraffin control device of claim 3, wherein: the utility model discloses a sieve plate, including solid fixed ring (16), gu even be equipped with a plurality of inner chambers on fixed ring (16), fixedly connected with spring two (17) in the inner chamber of solid fixed ring (16), the top rigid coupling of spring two (17) has T type piston rod (18), the bottom rigid coupling of solid fixed ring (16) and sieve two (19) is run through on the top of T type piston rod (18), the bottom of T type piston rod (18) and the inner chamber sliding connection of solid fixed ring (16).

5. The solid paraffin control device of claim 4, wherein: the even a plurality of through-holes that are equipped with on sieve two (19), the bottom terminal surface that advances oil pipe (2) and wax prevention pipe (3) all is equipped with annular seal groove, the equal rigid coupling in top of wax prevention pipe (3) and screen pipe (4) has the sealing ring, the sealing ring laminates with annular seal groove mutually.

6. The solid paraffin control device of claim 5, wherein: the bottom end of the inner wall of the wax-proof pipe (3) is fixedly connected with a first sieve plate (15), and the diameter of a sieve hole on the first sieve plate (15) is smaller than that of a sieve hole on the side wall of the sieve pipe (4).

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