Oil field wellhead heating and viscosity reducing device

Abstract

The utility model relates to the technical field of oil exploitation, and discloses an oil field wellhead heating and viscosity reducing device which comprises two clamping covers and an arc groove, the two clamping covers are symmetrically close to each other, the arc groove is formed in the inner side surface of each clamping cover, and an electromagnetic heating pipe close to the arc groove is fixedly embedded in each clamping cover. Side plates close to each other are fixed to the middles of the two sides of the front end clamping cover and the rear end clamping cover, grooves are formed in the upper portion and the lower portion of the surface of each side plate, magnets are fixedly embedded into the grooves, and the side plates at the front end and the rear end are attracted and fixed through the magnets. According to the technical scheme, the electromagnetic heating pipe is embedded and fixed into the clamping cover, the metal oil pumping pipe can be heated through electromagnetic induction in the using process, the purpose of heating oil and reducing viscosity is achieved, the clamping cover is attracted and fixed through the magnets on the side plates in a magnetic attraction mode, the fixing mode is simpler, and using is more convenient. And the position fixed on the outer ring of the oil pumping pipe can be selectively changed, so that the device can be conveniently detached for maintenance, and can be protected and stored when not used.

Description

Technical Field

[0001] This utility model relates to the field of petroleum extraction technology, specifically to an oilfield wellhead heating and viscosity-reducing device. Background Technology

[0002] An oil field refers to a specific area where crude oil is produced. Sometimes it is a general term for oil-bearing layers that accumulate underground in a specific region. In a broader sense, several oil-bearing areas are combined to form an oil field. When extracting oil, it is drawn from the wellhead through pipelines. However, because oil is more viscous at low temperatures in winter, it is easy to cause accumulation and blockage during extraction, which is not conducive to the transportation of oil. Heating can reduce the viscosity of oil, thereby avoiding blockage and facilitating smooth extraction.

[0003] Existing heating structures are fixed to and connected to pipelines, making the heating position unchangeable. This hinders maintenance over long-term use, and during periods of low temperatures and high humidity in summer, when heating of the oil is unnecessary, the heating structure remains connected to the pipeline, significantly impacting its lifespan. Therefore, we propose an oilfield wellhead heating and viscosity-reducing device. Utility Model Content

[0004] The purpose of this invention is to provide an oilfield wellhead heating and viscosity-reducing device. By embedding and fixing an electromagnetic heating tube inside the clamp, the device can heat the metal sucker pipe using electromagnetic induction during use, thereby heating the oil and reducing its viscosity. The clamp is fixed by magnetic attraction using magnets on the side plate, making the fixing method simpler. The position of the clamp on the outer ring of the sucker pipe can be changed, which facilitates the removal of the device for maintenance and protection when not in use. This invention solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oilfield wellhead heating and viscosity reduction device, comprising a retaining cover and an arc groove. Two retaining covers are provided and are symmetrically close to each other. The arc groove is provided on the inner surface of the retaining cover. An electromagnetic heating tube is embedded and fixed inside the retaining cover and close to the arc groove. Side plates are fixed at the middle positions of the front and rear ends of the retaining cover and are close to each other. Each side plate has grooves on the upper and lower surfaces, so that magnets are embedded and fixed inside the grooves. The front and rear side plates are fixed by magnetic attraction.

[0006] By adopting the above technical solution, the clips are attached to the outer ring of the metal tubing through the arc groove. The two clips are locked by the magnet of the side plate. The arc groove is attached to the outer wall of the tubing through heat-resistant rubber. The metal pipe can be heated by the electric heating tube through electromagnetic induction to achieve the purpose of heating and reducing the viscosity of oil.

[0007] Optionally, a screw block is fixed at the middle position of the surface of the rear side plate, and a hand-tightening bolt passes through the two side plates from the front end, with the end of the hand-tightening bolt being screwed into the screw block to lock the two side plates.

[0008] By adopting the above technical solution, in order to improve the firmness during long-term fixed use, the locking strength between the side plates can be increased by screwing the bolts into the screw blocks.

[0009] Optionally, a through-hole is provided on the side plate surface at the position aligned with the screw block, through which the hand-tightening bolt passes.

[0010] Optionally, a heat-resistant rubber pad is fixed to the inner surface of the arc groove, and the heat-resistant rubber pad is fixed to the inner surface of the arc groove by an adhesive method.

[0011] By adopting the above technical solutions, the purpose of heat insulation is achieved.

[0012] Optionally, a handle is fixed to the outer surface of the card cover, and the handle is fixed to the outer surface of the card cover by welding.

[0013] By adopting the above technical solution, the card cover can be easily held using the handle.

[0014] Optionally, a heat-resistant rubber sleeve is fixedly fitted around the outer ring of the handle, and the inner ring of the heat-resistant rubber sleeve is in contact with the outer surface of the handle.

[0015] By adopting the above technical solutions, the comfort of holding the handle is improved.

[0016] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0017] 1. The technical solution of this application embeds a fixed electromagnetic heating tube inside the card cover. When in use, it can use electromagnetic induction to heat the metal oil pipe, thereby heating the oil to reduce its viscosity. The card cover is fixed by magnetic attraction through the magnet on the side plate, which is simpler to fix. The position of fixing it on the outer ring of the oil pipe can be changed, which is convenient for disassembling the device for maintenance. When not in use, it can be protected and stored to ensure its service life.

[0018] 2. The technical solution of this application has a screw block reserved on the surface of one of the side plates. When the device needs to be heated for a long time, the hand-tightening bolt can be passed through the side plate and screwed into the screw block, thereby increasing the strength of the structure fixation. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1This is a schematic diagram of the overall structure of the oilfield wellhead heating and viscosity reduction device of this utility model;

[0021] Figure 2 This is a top view schematic diagram of the oilfield wellhead heating and viscosity reduction device of this utility model.

[0022] In the diagram: 1. Cover; 11. Electromagnetic heating tube; 2. Arc groove; 21. Heat-resistant rubber pad; 3. Side plate; 31. Groove; 311. Magnet; 32. Hand-tightening bolt; 33. Screw block; 4. Handle; 41. Heat-resistant rubber sleeve. Detailed Implementation

[0023] Please see Figure 1-2 This utility model provides a technical solution: an oilfield wellhead heating and viscosity reduction device, including a retaining cover 1 and an arc groove 2. The arc groove 2 is set on the inner surface of the retaining cover 1. When in use, the arc groove 2 on the inner side of the retaining cover 1 is fitted onto the outer ring of the metal sucker pipe, so that the two retaining covers 1 are symmetrically close to each other. Side plates 3 are fixed at the middle position on both sides of the two retaining covers 1. The side plates 3 of the front and rear retaining covers 1 are close to each other. Grooves 31 are opened on the upper and lower surfaces of the front side of the front side plate 3 and the upper and lower surfaces of the rear side of the rear side plate 3. Magnets 311 are embedded and fixed inside the grooves 31, so that the front and rear side plates 3 are attracted and fixed by the magnets 311, thereby achieving the purpose of fixing the retaining cover 1 to the outer ring of the metal sucker pipe. The fixing position is relatively flexible and can be selected at will, and it is convenient for disassembly and maintenance.

[0024] An electromagnetic heating tube 11 is embedded and fixed inside the cover 1, close to the arc groove 2. When in use, the electromagnetic heating tube 11 is connected to its controller. After being powered on, it can use electromagnetic induction to heat the metal oil pipe, thereby achieving the purpose of heating the oil inside the metal oil pipe. In order to reduce the heat transfer from the oil pipe to the cover 1, a heat-resistant rubber pad 21 is fixed on the inner surface of the arc groove 2. The heat-resistant rubber pad 21 is fixed to the inner surface of the arc groove 2 by a bonding method, and the arc groove 2 is in contact with the outer surface of the metal oil pipe through the heat-resistant rubber pad 21.

[0025] A handle 4 is fixed to the outer surface of the card cover 1. The handle 4 is fixed to the outer surface of the card cover 1 by welding. The card cover 1 can be held and operated by the handle 4. A heat-resistant rubber sleeve 41 is fixed to the outer ring of the handle 4. The inner ring of the heat-resistant rubber sleeve 41 is in contact with the outer surface of the handle 4. The heat-resistant rubber sleeve 41 serves the purpose of heat insulation and can improve the comfort of holding.

[0026] A screw block 33 is fixed in the middle of the surface of the rear side plate 3, and a through hole is opened at the position where the side plate 3 is aligned with the screw block 33. A hand-tightening bolt 32 passes through the through hole from the front end between the two side plates 3, and the end of the hand-tightening bolt 32 is screwed into the screw block 33 to lock the two side plates 3. When it is necessary to improve the stability of locking for long-term use, the hand-tightening bolt 32 can be screwed in to improve the fixing firmness. Alternatively, the hand-tightening bolt 32 can be removed and used separately by using the magnet 311 for adsorption.

[0027] In use, the two clips 1 are held by the handle 4, and the clips 1 are locked onto the outer ring of the oil pipe where the position needs to be fixed by the inner arc groove 2. The side plates 3 on both sides of the two clip grooves are brought close to each other. Under the attraction of the magnet 311, the two clips 1 are attracted and fixed to the outer ring of the pipe. The arc groove 2 is in contact with the outer surface of the pipe by the heat-resistant rubber pad 21. The electromagnetic heating tube 11 is connected to the controller and started. The metal oil pipe of the oil well can be heated by electromagnetic induction, thereby achieving the purpose of heating and reducing the viscosity of the oil passing through. When not in use, the clips 1 on both sides can be pulled off for easy disassembly and maintenance, or they can be removed and stored when heating is not needed. In order to improve the stability of the fixation during use, the hand-tightening bolt 32 can be used to pass through the two side plates 3 and the end of the hand-tightening bolt 32 can be screwed into the screw block 33 to lock the side plates 3 and increase the fixation strength. Alternatively, the hand-tightening bolt 32 can be used to fix the pipe by magnetic attraction alone.

Claims

1. An oilfield wellhead heating and viscosity-reducing device, comprising a retaining cover (1) and an arc groove (2), characterized in that: The card cover (1) is provided in two symmetrical and close to each other, and the arc groove (2) is provided on the inner surface of the card cover (1). An electromagnetic heating tube (11) close to the arc groove (2) is embedded and fixed inside the card cover (1). The front and rear end cover (1) has side plates (3) fixed close to each other at the middle position on both sides. Each side plate (3) has a groove (31) on the upper and lower surface, so that a magnet (311) is embedded and fixed inside the groove (31). The front and rear side plates (3) are attracted and fixed by the magnet (311).

2. The oilfield wellhead heating and viscosity-reducing device according to claim 1, characterized in that: A screw block (33) is fixed in the middle of the surface of the rear side plate (3), and a hand-tightening bolt (32) is passed through between the two side plates (3) from the front end. The end of the hand-tightening bolt (32) is screwed into the screw block (33) to lock the two side plates (3).

3. The oilfield wellhead heating and viscosity-reducing device according to claim 2, characterized in that: The side plate (3) has a through hole at the position where it is aligned with the screw block (33), and the hand-tightening bolt (32) passes through the through hole to penetrate the side plate (3).

4. The oilfield wellhead heating and viscosity-reducing device according to claim 1, characterized in that: A heat-resistant rubber pad (21) is fixed to the inner surface of the arc groove (2), and the heat-resistant rubber pad (21) is fixed to the inner surface of the arc groove (2) by bonding.

5. The oilfield wellhead heating and viscosity-reducing device according to claim 1, characterized in that: A handle (4) is fixed to the outer surface of the card cover (1), and the handle (4) is fixed to the outer surface of the card cover (1) by welding.

6. The oilfield wellhead heating and viscosity-reducing device according to claim 5, characterized in that: The outer ring of the handle (4) is fitted with a heat-resistant rubber sleeve (41), and the inner ring of the heat-resistant rubber sleeve (41) is in contact with the outer surface of the handle (4).

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