Vacuum negative pressure oil extraction device for oil well

Abstract

The utility model discloses a vacuum negative pressure oil extraction device for an oil well, and belongs to the field of oil well exploitation. The vacuum negative pressure oil extraction device for the oil well comprises a heat dissipation body, a Teflon heating pipe is arranged in the heat dissipation body, heat conduction blocks are transversely and evenly distributed on the outer portion of the heat dissipation body, and adaptive grooves are formed in the outer portions of the heat conduction blocks in a sunken mode. The heating device solves the problems that the outer portion of an existing pipeline is prone to sinking and protruding, and the heating device in the patent cannot be well attached to the appearance of the pipeline, and the heat conduction block transversely slides on the outer portion of the heat dissipation body and is adjusted to make contact with the vacuum negative pressure oil extraction pipeline. When the outside of the vacuum negative-pressure oil extraction pipeline protrudes to influence the heat conduction block, the heat conduction block slides outside the heat dissipation body and can be prevented from colliding with the protruding position, and contact is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil well exploitation field, concretely is a kind of vacuum negative pressure oil extraction device for oil well. BACKGROUND

[0002] The vacuum negative pressure oil extraction device for oil well is a device specially designed to solve the problem of nighttime freezing of oil well connecting pipelines in cold winter areas, which provides continuous heating by attaching heating rods to the outer wall of the pipeline, raises the temperature of the pipeline and its internal liquid to thaw, and ensures the flow of oil, which not only effectively prevents the freezing of the liquid inside the pipeline, but also improves the oil extraction efficiency through vacuum negative pressure technology to ensure the stable operation of the oil well in low temperature environment.

[0003] Chinese patent CN118856137A discloses an oilfield pipeline electromagnetic heating device, which includes an outer cover, an oilfield pipeline inside the outer cover, an inner liner outside the oilfield pipeline, an electromagnetic coil around the outer side of the inner liner, an outer cover outside the electromagnetic coil, a fixed end head installed at both ends of the outer cover, an end of the electromagnetic coil extending through the fixed end head and connected to an external power supply, an alternating magnetic field generated around the electromagnetic coil by power supply, eddy currents generated in the oilfield pipeline by the alternating magnetic field, heat energy converted from the eddy currents due to resistance effect, heating of the oilfield pipeline itself, heating of the oil flowing inside the oilfield pipeline, and heating of the oil to avoid freezing and blocking of the oilfield pipeline and affecting oil transportation.

[0004] The oilfield pipeline electromagnetic heating device of the above-mentioned patent can only be fixedly installed outside the required pipeline for a long time, and a large number of pipelines need to be laid when the oil transmission pipeline is long, and the outer part of the pipeline is prone to have depressions and protrusions, the heating device in the above-mentioned patent cannot well fit the shape of the pipeline, resulting in reduced vacuum negative pressure oil extraction effect of the oil well. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a vacuum negative pressure oil extraction device for oil well, which is slid and adjusted to contact with the vacuum negative pressure oil extraction pipeline outside the heat sink by the heat conduction block transversely, the heat conduction block is slid outside the heat sink to avoid collision with the protruding position and contact when the protruding position affects the heat conduction block outside the vacuum negative pressure oil extraction pipeline, and the device can be bound outside the vacuum negative pressure oil extraction pipeline by connecting the elastic band on both sides of the pair of sliding blocks during laying, the installation efficiency and disassembly are high, and the problems in the above-mentioned background technology are solved.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a vacuum negative pressure oil extraction device for oil well, including the heat sink, the heat sink inside is provided with teflon heating pipe, the outside of heat sink is evenly distributed with heat conduction block laterally, the outside recess of heat conduction block is provided with the adaptive slot, the outer wall of heat sink is provided with the slide rail of strip, the outside of slide rail is provided with a pair of sliding block laterally, the both sides of sliding block are provided with elastic band, and one end of two elastic band is provided with first connecting block and second connecting block for connecting respectively.

[0007] Preferably, the inner wall of the heat sink is provided with a heat conducting ring.

[0008] Preferably, the heat conducting block is provided with a second handle at the front and rear ends.

[0009] Preferably, the sliding block is embedded in the slide rail and is slidably connected with the inside of the slide rail.

[0010] Preferably, the first connecting block is provided with a knob on one side, the knob is rotatably connected with the outer wall of the first connecting block through a connecting shaft, and the second connecting block is provided with a connecting hole penetrating the inside, and the connecting hole is connected with the knob slot.

[0011] Preferably, the elastic band is bound at the outermost position of the heat conducting block.

[0012] Preferably, the outer wall of the second handle is reserved with an anti-skid strip.

[0013] Preferably, the slide rail is provided with a heat insulation sheet on one side, and the heat insulation sheet is provided with a first handle on one side.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] The utility model discloses a heat sink, the heat conduction block of lower end outside is pasted with the corresponding pipeline of the oil exploitation in the well when installing and assisting the subsequent vacuum negative pressure oil extraction, and the Teflon heating pipe provides the high efficiency heat conduction after being powered by the heat conduction ring and makes the heat pass through the heat sink and the heat conduction block one by one, and is transferred to the adaptive groove position of the heat conduction block, and the heat of the outer wall of the corresponding pipeline of the oil exploitation contacts the heat of the adaptive groove position, realizes the thawing, wherein the heat conduction block can slide and adjust the contact position of the heat conduction block and the corresponding pipeline of the oil exploitation in the transverse direction outside the heat sink after the outer wall of the corresponding pipeline of the oil exploitation has the protruding structure and contacts the heat conduction block, adapts to the pipeline of different outer systems, finally, after the heat conduction block of lower end outside the heat sink is pasted with the pipeline, two pairs of elastic bands are pasted around the pipeline and the heat sink, the heat sink can be stably pasted on the outer wall of the pipeline, the equipment installation and the subsequent dismounting are convenient, and also do not need to be continuously bound on the outside of the pipeline, and the thawing operation is suitable for the thawing operation in the flammable, explosive, corrosive, liquid and other environments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole external structure schematic diagram of the utility model;

[0017] Figure 2 It is the heat sink internal structure section view of the utility model;

[0018] Figure 3 It is the heat sink internal structure section view of the utility model; Figure 2 It is the local enlarged view of area A in the utility model;

[0019] Figure 4 It is the knob connecting structure schematic diagram of the utility model;

[0020] Figure 5 It is the connecting hole internal structure section view of the utility model;

[0021] Figure 6 It is the heat sink internal structure section view of the utility model; Figure 5 It is the local enlarged view of area B in the utility model.

[0022] In the drawing: 1, heat sink; 2, power supply line; 3, first handle; 4, heat insulation sheet; 5, sliding rail; 6, sliding block; 7, elastic band; 8, heat conduction block; 9, second handle; 10, Teflon heating pipe; 11, heat conduction ring; 13, adaptive groove; 14, first connecting block; 15, second connecting block; 16, connecting hole; 17, knob; 18, connecting shaft; 19, anti-skid strip. DETAILED DESCRIPTION

[0023] The application will be further described below in conjunction with specific embodiments.

[0024] Embodiment 1

[0025] As Figure 1 The vacuum negative pressure oil extraction device for oil well of the embodiment, as shown in the figure, comprises a heat sink 1 with a hollow structure, a strip-shaped Teflon heating pipe 10 is arranged in the hollow position inside the heat sink 1, and the outside of the heat sink 1 is provided with a power supply line 2 connected with the Teflon heating pipe 10. When the device is started and the frozen position of the vacuum negative pressure oil extraction pipeline is cooled, the Teflon heating pipe 10 is powered through the power supply line 2 to generate uniform outward diffusion temperature, so as to realize sliding and subsequent production recovery.

[0026] In order to quickly absorb the heat generated by the Teflon heating pipe 10 by the heat sink 1 and then transmit it, a heat conduction ring 11 is arranged around the inner wall of the heat sink 1. The protruding heat conduction ring 11 can increase the contact heat area and improve the heat absorption effect.

[0027] In addition, in order to enable the cylindrical heat sink 1 to transmit the surface heat to the vacuum negative pressure oil extraction pipeline to be slid, heat conduction blocks 8 are uniformly distributed laterally on the outside of the heat sink 1. The heat conduction blocks 8 can be laterally slid and detached from the outside of the heat sink 1. According to the length of the required thawing pipeline, a corresponding number and length of heat conduction blocks 8 are reserved outside the heat sink 1.

[0028] The outer wall of the pipeline of different models is provided with a protruding structure, and there is no limiting structure between the two adjacent heat conduction blocks 8. Second handles 9 are arranged at the front and rear ends of the outside of the heat conduction blocks 8. By pinching the second handles 9, the heat conduction blocks 8 can be quickly and stably moved laterally. The interval between the two adjacent heat conduction blocks 8 is adjusted laterally, so that the protruding structure of the pipeline outer wall does not affect the contact between the heat conduction blocks 8 and the pipeline.

[0029] The recessed adaptive groove 13 is arranged on the outside of the heat conduction block 8. When the pipeline contacts the heat conduction block 8, the pipeline can be embedded in the adaptive groove 13 and as much as possible contact the heat conduction block 8 to increase the contact area between the thawing pipeline and the heat conduction block 8.

[0030] In order to facilitate the installation of the vacuum negative pressure oil extraction device of the oil well, a strip-shaped sliding rail 5 is arranged on the outer wall of the heat sink 1. A pair of sliding blocks 6 is arranged laterally on the outside of the sliding rail 5. The sliding blocks 6 are embedded in the sliding rail 5 and are in sliding connection with the inside of the sliding rail 5. Elastic bands 7 are arranged on both sides of the sliding blocks 6. One end of each elastic band 7 is provided with a first connecting block 14 and a second connecting block 15 for connection. When the device is bound to the required thawing position, the elastic bands 7 are stretched and wrapped around the pipeline to be slid and the heat conduction blocks 8, and then the first connecting block 14 and the second connecting block 15 are spliced to complete the combination of the elastic bands 7.

[0031] The first connecting block 14 is provided with a knob 17 on one side, the knob 17 is rotatably connected with the outer wall of the first connecting block 14 through a connecting shaft 18, the second connecting block 15 is provided with a connecting hole 16 penetratingly arranged in the interior, the connecting hole 16 is connected with the clamping groove of the knob 17, the knob 17 can slide and pass through the connecting hole 16, after the second connecting block 15 and the first connecting block 14 are spliced and pass through the connecting hole 16, the knob 17 is rotated with the connecting shaft 18 as the center and is attached to the outer wall of the second connecting block 15, and the splicing of the first connecting block 14 and the second connecting block 15 is completed;

[0032] In order to avoid the heat-conducting block 8 from falling off in actual use, the elastic band 7 is bound at the outer position of the edge heat-conducting block 8, and the elastic band 7 is attached to the second handle 9 during the binding process, in order to improve the contact area between the second handle 9 and the elastic band 7 and facilitate the position adjustment of the heat-conducting block 8, the outer wall of the second handle 9 is reserved with an anti-skid strip 19, the friction coefficient of the contact position can be improved through the protruding anti-skid strip 19, and the anti-skid effect is improved;

[0033] In order to facilitate the movement and carrying of the whole device, the slide rail 5 is provided with the heat insulation sheet 4 on one side, the heat insulation sheet 4 is provided with the first handle 3 on one side, the placing position of the whole vacuum negative pressure oil extraction device for oil wells can be adjusted by holding the first handle 3, the independent holding position is arranged, the surface of the heat dissipation body 1 can be avoided from scalding the hands of the user when the heat dissipation body 1 is disassembled, and the heat insulation sheet 4 is zirconia ceramic, so that the heat can be avoided from being transmitted to the first handle 3.

[0034] Working principle: when the device is used and the frozen oil well vacuum negative pressure oil pipeline is thawed, hold the first handle 3 position so that the adapter groove 13 at the lower end of the heat conducting block 8 is wrapped outside the pipeline to be thawed, the protruding structure outside the pipeline limits and collides with the heat conducting block 8, then pinch the second handle 9 to adjust the transverse position of the corresponding heat conducting block 8, after the adapter groove 13 positions of all heat conducting blocks 8 outside the heat sink 1 completely cover the outside of the pipeline, slide the sliding block 6 transversely, the two sliding blocks 6 slide in the slide rail 5 and move to the positions of the two heat conducting blocks 8 at the edges respectively, pull the two elastic bands 7 corresponding to the sliding block 6 and wrap them around the lower end of the pipeline to be thawed, the first connecting block 14 of one of the elastic bands 7 is spliced with the second connecting block 15 of the other elastic band 7 to form a cuboid, during the splicing process, the knob 17 will pass through the connecting hole 16, after passing through, the knob 17 rotates around the connecting shaft 18 as the center and is attached to the outer wall of the second connecting block 15, realizing the locking of the pair of elastic bands 7, at the same time when the pair of elastic bands 7 are locked, they will tightly adhere to the anti-skid strips 19 reserved outside the corresponding second handle 9, the friction between the elastic bands 7 and the anti-skid strips 19 will limit the first two heat conducting blocks 8, so that the heat conducting blocks 8 and the wrapped adapter grooves 13 are stably bound in the required installation position, the Teflon heating pipe 10 is powered through the power supply wire 2, 220V alternating current enters the Teflon heating pipe 10 and is converted into uniform heat, the heat is diffused outward, first absorbed by the heat conducting ring 11 wrapped around the inner wall of the heat sink 1 and then transmitted to the surface of the heat sink 1, then the heat is transmitted to the outer wall of the vacuum negative pressure oil pipeline in contact with the oil well through the heat conducting block 8, realizing the heating of the pipeline and the thawing of the frozen position inside the pipeline, and resuming production.

[0035] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application.

Claims

1. A vacuum negative pressure oil extraction device for oil wells, comprising a heat sink (1), characterized in that, The heat dissipation body (1) is internally provided with a Teflon heating pipe (10), the outer part of the heat dissipation body (1) is uniformly distributed with heat conduction blocks (8) in the transverse direction, the outer part of the heat conduction blocks (8) is concavely provided with adaptive grooves (13), the outer wall of the heat dissipation body (1) is provided with strip-shaped sliding rails (5), the outer part of the sliding rails (5) is laterally provided with a pair of sliding blocks (6), the two sides of the sliding blocks (6) are both provided with elastic bands (7), and one end of the two elastic bands (7) is respectively provided with a first connecting block (14) and a second connecting block (15) for connection.

2. A vacuum sub-atmospheric pressure oil well production apparatus according to claim 1 wherein, The inner wall of the heat dissipation body (1) is circumferentially provided with a heat conduction ring (11).

3. A vacuum sub-atmospheric pressure oil well production apparatus according to claim 1 wherein, The front and rear ends of the outer part of the heat conduction blocks (8) are both provided with second handles (9).

4. The vacuum sub-atmospheric pressure oil well production system of claim 1 wherein, The sliding blocks (6) are embedded in the inner part of the sliding rails (5) and are in sliding connection with the inner part of the sliding rails (5).

5. A vacuum sub-atmospheric pressure oil well production apparatus according to claim 1 wherein, One side of the first connecting block (14) is provided with a knob (17), the knob (17) and the outer wall of the first connecting block (14) are in rotary connection through a connecting shaft (18), the inner part of the second connecting block (15) is throughly provided with a connecting hole (16), and the connecting hole (16) is in clamping groove connection with the knob (17).

6. A vacuum sub-atmospheric pressure oil well production apparatus according to claim 1 wherein, The elastic bands (7) are bound at the outer part of the edge heat conduction blocks (8).

7. A vacuum sub-atmospheric pressure oil well production apparatus according to claim 3 wherein, The outer wall of the second handles (9) is reserved with anti-skid strips (19).

8. A vacuum sub-atmospheric pressure oil well production apparatus according to claim 4 wherein, One side of the sliding rails (5) is provided with heat insulation sheets (4), and one side of the heat insulation sheets (4) is provided with first handles (3).

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