Anti-blocking oil pump for oil sand downhole exploitation

Abstract

The utility model relates to oil pump auxiliary equipment technical field discloses an anti -blocking oil pump for oil sand down -hole exploitation, including main body power pump, the bottom detachable connection of oil pumping pipeline mechanism has detachable filtering mechanism, the bottom detachable connection of detachable filtering mechanism has another oil pumping pipeline mechanism, the top fixed connection of main body power pump has anti -backflow mechanism, detachable filtering mechanism includes two connection sealing assemblies, and the far side fixed connection of two connection sealing assemblies has a plurality of L type protrusions, the inside detachable connection of outer tube has small filter hole filter disc. In the utility model, the L type protrusion on the connecting base plate of connection sealing assembly inserts into the L type groove and then slides and fixes, subsequently enters detachable filtering mechanism, thereby can conveniently filter out most of the impurities and can conveniently dismantle and carry out the replacement of filter screen, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for oil pumps, and in particular to an anti-clogging oil pump used in downhole oil sand wells. Background Technology

[0002] When exploiting oil sands wells, a type of anti-clogging pump is often used in downhole operations. Oil sands wells are downhole facilities used to exploit oil sands resources. Their main function is to provide working space and transportation channels for the extraction of underground oil sand mixtures, enabling the extraction of oil sand resources from underground to the surface. The anti-clogging pump is a special pumping equipment adapted to oil sands wells. Its main function is to extract the oil sand mixture from the well, while removing impurities through a filtration mechanism and preventing backflow by an anti-backflow mechanism to prevent the fluid from flowing backward, thus avoiding pump blockage and ensuring a stable pumping process.

[0003] In existing technologies, some downhole oil sand wells employ anti-clogging pump devices, which generally include a filter disc and a main pumping pipeline. The filter disc is a filtration component in existing downhole anti-clogging pumps used to intercept impurity particles in the oil-sand mixture. It exists in the form of a detachable filter disc or a small-hole filter disc, etc. It blocks sand particles of different sizes through a multi-stage filtration design, and the detachable structure facilitates later cleaning. The main pumping pipeline is the channel component in existing anti-clogging pumps that transports the oil-sand mixture. It connects the main power pump and the detachable filter mechanism, providing a stable transmission path for the oil-sand mixture.

[0004] In existing technologies, some oil sand well downhole development uses anti-clogging pump devices, which make it difficult to easily disassemble the filter components, resulting in low working efficiency. Therefore, an anti-clogging pump for oil sand well downhole development is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-clogging pump for downhole oil sand well development, aiming to improve the problem that it is difficult to replace the filter components in some existing anti-clogging pumps for downhole oil sand well development.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-clogging oil pump for downhole oil sand well development, comprising a main power pump, an oil pumping pipeline mechanism fixedly connected to the bottom of the main power pump, a detachable filter mechanism detachably connected to the bottom of the oil pumping pipeline mechanism, another oil pumping pipeline mechanism detachably connected to the bottom of the detachable filter mechanism, an anti-backflow mechanism fixedly connected to the top of the main power pump, the detachable filter mechanism comprising two connecting sealing components, the far side of the two connecting sealing components being slidably connected to the near side of the two oil pumping pipeline mechanisms, a plurality of L-shaped protrusions fixedly connected to the far side of the two connecting sealing components, an outer pipe fixedly connected to the near side of the two connecting sealing components, a large filter component detachably connected inside the outer pipe, and a small filter hole filter disc detachably connected inside the outer pipe;

[0007] As a further description of the above technical solution: the anti-backflow mechanism includes an outer conduit, the bottom of which is fixedly connected to the top of the main power pump. An x-axis connecting rotating column is rotatably connected to the left side of the inner side of the outer conduit. A z-axis connecting column is rotatably connected to the middle inner side of the x-axis connecting rotating column. A sealing cover connecting mechanism is fixedly connected to the top right side of the z-axis connecting column. An anti-backflow sealing component is fixedly connected to the bottom of the sealing cover connecting mechanism.

[0008] As a further description of the above technical solution: the oil pumping pipeline mechanism includes two oil pumping pipeline bodies, the top of the oil pumping pipeline body is fixedly connected to the bottom of the main power pump, and a connecting component is fixedly connected to the bottom of the oil pumping pipeline body.

[0009] As a further description of the above technical solution: the connecting assembly includes two connecting discs, the adjacent sides of the two connecting discs are fixedly connected to both ends of the oil extraction pipe body, and the distant sides of the two connecting discs are provided with multiple L-shaped grooves.

[0010] As a further description of the above technical solution: the connecting sealing assembly includes a connecting chassis, the two connecting chassis are detachably connected on opposite sides to the two connecting assemblies, and a conduit sealing ring is fixedly connected to the opposite sides of the two connecting chassis, and the conduit sealing ring is internally fixedly connected to the bottom of the plurality of L-shaped protrusions.

[0011] As a further description of the above technical solution: the large filtration assembly includes a detachable filter disc, the exterior of which is detachably connected to the interior of the outer tube, and the interior of the detachable filter disc has multiple large filter holes.

[0012] As a further description of the above technical solution: the sealing cover connecting mechanism includes a y-axis connecting column, the left side of which is fixedly connected to the top of the z-axis connecting column, and the right side of which is fixedly connected to a z-axis fixing column.

[0013] As a further description of the above technical solution: the anti-backflow sealing assembly includes a fixed connecting block, the top of which is fixedly connected to the bottom of the z-axis fixed column, and an anti-backflow sealing ring is fixedly connected to the bottom of the fixed connecting block. The outer side of the anti-backflow sealing ring is slidably connected to the inner wall of the outer conduit.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the L-shaped protrusion on the connecting base of the connecting sealing component is inserted into the L-shaped groove and then slid and fixed. Then it enters the outer tube of the detachable filter mechanism. It first passes through the large filter hole on the detachable filter plate of the large filter component for filtration, and then passes through the small filter hole filter plate for further filtration. This makes it easy to filter out most impurities and easy to disassemble and replace the filter screen, thus improving work efficiency.

[0016] 2. In this utility model, the oil-sand mixture pushes the anti-backflow sealing ring of the anti-backflow sealing assembly, which in turn drives the fixed connecting block, the sealing cover connecting mechanism's z-axis fixed column and y-axis connecting column, thereby causing the z-axis connecting column to rotate around the x-axis connecting rotating column. The anti-backflow sealing ring separates from the inner wall of the outer conduit, and the oil-sand mixture is discharged from the outer conduit. When oil pumping stops, the anti-backflow sealing ring resets and fits against the inner wall of the outer conduit, thus preventing backflow of oil and ensuring the smooth progress of oil production. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an anti-clogging oil pump used in downhole oil sand wells according to the present invention.

[0018] Figure 2 This is a schematic diagram of the main body of a pumping pipeline for downhole oil sand wells using an anti-clogging pump, as proposed in this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This utility model provides a structural schematic diagram of a detachable filter mechanism for downhole oil sand wells using an anti-clogging oil pump.

[0021] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0022] Legend:

[0023] 1. Main power pump; 2. Oil pumping pipeline mechanism; 21. Oil pumping pipeline body; 22. Connecting assembly; 221. Connecting disc; 222. L-shaped groove; 3. Detachable filter mechanism; 31. Connecting sealing assembly; 311. Connecting chassis; 312. Conduit sealing ring; 32. L-shaped protrusion; 33. Outer pipe; 34. Large filter assembly; 341. Detachable filter disc; 342. Large filter hole; 35. Small filter hole filter disc; 4. Anti-backflow mechanism; 41. Outer conduit; 42. X-axis connecting rotating column; 43. Z-axis connecting column; 44. Sealing cover connecting mechanism; 441. Y-axis connecting column; 442. Z-axis fixed column; 45. Anti-backflow sealing assembly; 451. Fixed connecting block; 452. Anti-backflow sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: An anti-clogging pump is used in downhole oil sands well development, referring to... Figures 1 to 3A clog-resistant pumping unit for downhole oil sands well development includes a main power pump 1. The main power pump 1 provides the power required for pumping oil and supports and connects a pumping pipeline mechanism 2 and an anti-backflow mechanism 4. The bottom of the main power pump 1 is fixedly connected to the pumping pipeline mechanism 2, which serves as a transmission channel for the oil-sand mixture within the pumping unit. It connects to the main power pump 1 and a detachable filter mechanism 3 via subordinate components. The pumping pipeline mechanism 2 includes two main pumping pipeline bodies 21, which are the specific carriers for transporting the oil-sand mixture. The top of each main pumping pipeline body 21 is connected to the main power pump 1 to receive the power-driven fluid, and the bottom is connected to a connecting assembly 22 for connection with other components. The top of each main pumping pipeline body 21 is fixedly connected to the bottom of the main power pump 1, and the bottom of each main pumping pipeline body 21 is fixedly connected to the connecting assembly 22. The connecting assembly 22 is mainly used to connect the main pumping pipeline body 21 to the detachable filter mechanism 3 or other pumping pipeline mechanisms 2, achieving a detachable connection via subordinate components. The connecting assembly 22 includes... Two connecting discs 221 connect the two ends of the main body 21 of the oil extraction pipe, providing space for the L-shaped grooves 222. They also cooperate with the connecting sealing assembly 31 to achieve connection between components. The adjacent sides of the two connecting discs 221 are fixedly connected to the two ends of the main body 21 of the oil extraction pipe. Multiple L-shaped grooves 222 are provided on the distant sides of the two connecting discs 221. The L-shaped grooves 222 mainly engage with the L-shaped protrusions 32, providing a structural basis for the detachable connection between the connecting discs 221 and the connecting base 311. The bottom of the pipeline mechanism 2 is detachably connected to a detachable filter mechanism 3. The detachable filter mechanism 3 mainly filters the oil-sand mixture entering the oil pump to remove impurities and reduce the risk of blockage. At the same time, the detachable design facilitates later cleaning and maintenance. The bottom of the detachable filter mechanism 3 is detachably connected to another oil pumping pipeline mechanism 2. The top of the main power pump 1 is fixedly connected to an anti-backflow mechanism 4. The anti-backflow mechanism 4 mainly prevents the oil-sand mixture discharged from the oil pump from flowing back into the main power pump 1, ensuring the unidirectionality of the oil pumping process.

[0026] Specifically, the oil-sand mixture first enters the bottom oil extraction pipeline mechanism 2, and then enters the main body 21 of the oil extraction pipeline mechanism 2. The main body 21 of the oil extraction pipeline is connected to the detachable filter mechanism 3 through the connecting component 22. The L-shaped groove 222 on the connecting plate 221 of the connecting component 22 interacts with the L-shaped protrusion 32 of the detachable filter mechanism 3 to ensure that the oil-sand mixture enters the detachable filter mechanism 3. After being processed by the detachable filter mechanism 3, the oil-sand mixture enters the main body 21 of the upper oil extraction pipeline mechanism 2, and then enters the main power pump 1. After the main power pump 1 is started, it transports the oil-sand mixture upward to the anti-backflow mechanism 4. Finally, the oil-sand mixture is discharged through the anti-backflow mechanism 4. During this process, all structures work together to maintain the process.

[0027] The detachable filter mechanism 3 includes two connecting sealing assemblies 31. The connecting sealing assemblies 31 primarily achieve a sealed connection between the detachable filter mechanism 3 and the oil extraction pipeline mechanism 2, preventing leakage of oil-sand mixture at the connection point. They also provide installation support for the L-shaped protrusion 32 and the outer pipe 33. Each connecting sealing assembly 31 includes a connecting base 311, which primarily connects the connecting assembly 22 and the connecting sealing assembly 31, supports the conduit sealing ring 312, and ensures the sealing effect at the connection point. The two connecting bases 311 are detachably connected to the adjacent sides of the two connecting assemblies 22. A conduit sealing ring 312 is fixedly connected to one side. The conduit sealing ring 312 mainly fills the gap between the connecting base 311 and the connecting plate 221, enhancing the sealing of the connection and preventing leakage of oil-sand mixture. The conduit sealing ring 312 is internally fixedly connected to the bottom of multiple L-shaped protrusions 32. The far sides of the two connecting sealing components 31 are slidably connected to the near sides of the two oil extraction pipe mechanisms 2. Multiple L-shaped protrusions 32 are fixedly connected to the far sides of the two connecting sealing components 31. The L-shaped protrusions 32 are mainly embedded in the L-shaped grooves 222, forming a locking structure with the connecting plate 221, realizing the detachable filter mechanism 3. The oil pumping pipeline mechanism 2 is detachably connected to an outer pipe 33 fixedly connected to one side of two connecting sealing assemblies 31. The outer pipe 33 mainly provides installation space for the large filter assembly 34 and the small filter disc 35, and connects the two connecting sealing assemblies 31 to form a closed filter chamber. The large filter assembly 34 is detachably connected inside the outer pipe 33. The large filter assembly 34 mainly performs preliminary filtration of the oil-sand mixture, blocking larger particles of impurities from entering the subsequent pipeline. The large filter assembly 34 includes a detachable filter disc 341, which mainly provides a carrier for opening large filter holes 342, and simultaneously realizes large filtration. The detachable connection between component 34 and outer tube 33 facilitates later cleaning or replacement. The external of the detachable filter disc 341 is detachably connected to the inside of the outer tube 33. The detachable filter disc 341 has multiple large filter holes 342 inside. The large filter holes 342 mainly allow oil and small particles in the oil-sand mixture to pass through, blocking large impurities and reducing the possibility of clogging of subsequent components. The small filter hole filter disc 35 is detachably connected inside the outer tube 33. The small filter hole filter disc 35 mainly performs secondary filtration on the oil-sand mixture that has been initially filtered by the large filter component 34, blocking smaller impurities and further improving the filtration effect.

[0028] Specifically, the oil-sand mixture first contacts the L-shaped protrusion 32, and then enters the connecting sealing assembly 31 with the cooperation of the connecting base 311 and the conduit sealing ring 312. Next, it enters the outer tube 33, and is processed through the large filter plate 341 of the large filter assembly 34 in the outer tube 33. It then flows to the small filter plate 35 for further processing, thus completing the filtration process of the oil-sand mixture.

[0029] Reference Figure 1 , Figure 4 and Figure 5 The anti-backflow mechanism 4 includes an outer conduit 41, which mainly serves as a discharge channel for the oil-sand mixture and provides installation and movement space for components such as the x-axis axial connecting rotating column 42 and the anti-backflow sealing assembly 45. The bottom of the outer conduit 41 is fixedly connected to the top of the main power pump 1. The x-axis axial connecting rotating column 42 is rotatably connected to the left side of the inner side of the outer conduit 41. The x-axis axial connecting rotating column 42 mainly supports the z-axis connecting column 43 and allows it to rotate around the x-axis, providing a rotational basis for the opening and closing action of the anti-backflow sealing assembly 45. The z-axis connecting column 43 is rotatably connected to the middle inner side of the x-axis axial connecting rotating column 42. The connecting column 43 mainly connects the x-axis connecting rotating column 42 and the sealing cover connecting mechanism 44, transmitting rotation to the anti-backflow sealing assembly 45 and controlling its opening and closing state. The sealing cover connecting mechanism 44 is fixedly connected to the top right side of the z-axis connecting column 43. The sealing cover connecting mechanism 44 mainly connects the z-axis connecting column 43 and the anti-backflow sealing assembly 45, ensuring synchronous movement and guaranteeing the stable implementation of the anti-backflow function. The sealing cover connecting mechanism 44 includes a y-axis connecting column 441, which mainly laterally connects the z-axis connecting column 43 and the z-axis fixed column 442. The z-axis fixed column 442 mainly longitudinally connects the z-axis connecting column 43 and the z-axis fixed column 442. The axial connecting column 441 and the fixed connecting block 451 provide longitudinal support for the anti-backflow sealing assembly 45, ensuring its stable installation. The lateral position of the anti-backflow sealing assembly 45 is adjusted to fit the inner wall of the outer conduit 41. The left side of the y-axis connecting column 441 is fixedly connected to the top of the z-axis connecting column 43, and the right side of the y-axis connecting column 441 is fixedly connected to the z-axis fixed column 442. The bottom of the sealing cover connecting mechanism 44 is fixedly connected to the anti-backflow sealing assembly 45. The anti-backflow sealing assembly 45 mainly achieves sealing through its cooperation with the inner wall of the outer conduit 41, preventing the backflow of the oil-sand mixture and ensuring unidirectional transmission during the oil pumping process. The anti-backflow sealing assembly 45 includes a fixed connecting block 451, which mainly connects the z-axis fixed column 442 and the anti-backflow sealing ring 452, supports the anti-backflow sealing ring 452 and ensures its secure installation. The top of the fixed connecting block 451 is fixedly connected to the bottom of the z-axis fixed column 442, and the bottom of the fixed connecting block 451 is fixedly connected to the anti-backflow sealing ring 452. The anti-backflow sealing ring 452 is mainly in close contact with the inner wall of the outer conduit 41 to enhance the sealing performance of the anti-backflow sealing assembly 45 and prevent leakage or backflow of the oil-sand mixture. The outer side of the anti-backflow sealing ring 452 is slidably connected to the inner wall of the outer conduit 41.

[0030] Specifically, the oil-sand mixture enters the outer conduit 41, pushing the anti-backflow sealing ring 452. The anti-backflow sealing ring 452 drives the fixed connecting block 451, which in turn drives the z-axis fixed column 442. The z-axis fixed column 442 drives the y-axis connecting column 441, which in turn drives the z-axis connecting column 43. The z-axis connecting column 43 rotates around the x-axis connecting rotating column 42. The sealing cover connecting mechanism 44 moves synchronously with the z-axis connecting column 43. The anti-backflow sealing ring 452 separates from the inner wall of the outer conduit 41, and the oil-sand mixture is discharged from the outer conduit 41. When oil pumping stops, the anti-backflow sealing ring 452 resets and fits against the inner wall of the outer conduit 41. During this period, the x-axis connecting rotating column 42, the z-axis connecting column 43, the sealing cover connecting mechanism 44, the y-axis connecting column 441, the z-axis fixed column 442, and the fixed connecting block 451 work together to maintain the anti-backflow effect.

[0031] The implementation principle of this application embodiment is as follows: The oil-sand mixture first enters the main body 21 of the bottom oil-suction pipe mechanism 2, and then enters the outer pipe 33 of the detachable filter mechanism 3. It is first filtered through the large filter hole 342, and then further filtered through the small filter hole filter disc 35 on the detachable filter disc 341 of the large filter assembly 34. The filtered oil-sand mixture enters the main power pump 1 through the main body 21 of the upper oil-suction pipe mechanism 2. The main power pump 1 provides power to push the oil-sand mixture upward to the outer conduit 41 of the anti-backflow mechanism 4. The oil-sand mixture pushes the anti-backflow sealing ring 452 of the anti-backflow sealing assembly 45, driving the fixed The connecting block 451, the sealing cover connecting mechanism 44's z-axis fixed column 442 and y-axis connecting column 441, thereby causing the z-axis connecting column 43 to rotate around the x-axis connecting rotating column 42, the anti-backflow sealing ring 452 separates from the inner wall of the outer conduit 41, and the oil-sand mixture is discharged from the outer conduit 41. When oil pumping stops, the anti-backflow sealing ring 452 resets and fits against the inner wall of the outer conduit 41. During this period, the connecting base 311, conduit sealing ring 312 and L-shaped protrusion 32 of the connecting sealing assembly 31 of the detachable filter mechanism 3, and the connecting plate 221 and L-shaped groove 222 of the connecting assembly 22 of the oil pumping pipeline mechanism 2 maintain a cooperative state to ensure the process proceeds.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clog-resistant pumping unit for downhole oil sands well development, comprising a main power pump (1), characterized in that: The bottom of the main power pump (1) is fixedly connected to an oil pumping pipe mechanism (2), the bottom of the oil pumping pipe mechanism (2) is detachably connected to a detachable filter mechanism (3), the bottom of the detachable filter mechanism (3) is detachably connected to another oil pumping pipe mechanism (2), and the top of the main power pump (1) is fixedly connected to an anti-backflow mechanism (4). The detachable filter mechanism (3) includes two connecting sealing components (31). The two connecting sealing components (31) are slidably connected on opposite sides to the two oil extraction pipe mechanisms (2). Multiple L-shaped protrusions (32) are fixedly connected on opposite sides of the two connecting sealing components (31). An outer tube (33) is fixedly connected on opposite sides of the two connecting sealing components (31). A large filter component (34) is detachably connected inside the outer tube (33). A small filter hole filter disc (35) is detachably connected inside the outer tube (33).

2. The anti-clogging oil pump for downhole oil sands well development according to claim 1, characterized in that: The anti-backflow mechanism (4) includes an outer conduit (41), the bottom of which is fixedly connected to the top of the main power pump (1). An x-axis connecting rotating column (42) is rotatably connected to the left side of the inner side of the outer conduit (41). A z-axis connecting column (43) is rotatably connected to the middle inner side of the x-axis connecting rotating column (42). A sealing cap connecting mechanism (44) is fixedly connected to the top right side of the z-axis connecting column (43). An anti-backflow sealing assembly (45) is fixedly connected to the bottom of the sealing cap connecting mechanism (44).

3. The anti-clogging oil pump for downhole oil sands well development according to claim 1, characterized in that: The oil pumping pipeline mechanism (2) includes two oil pumping pipeline bodies (21). The top of the oil pumping pipeline body (21) is fixedly connected to the bottom of the main power pump (1), and a connecting component (22) is fixedly connected to the bottom of the oil pumping pipeline body (21).

4. The anti-clogging oil pump for downhole oil sands well development according to claim 3, characterized in that: The connecting assembly (22) includes two connecting discs (221), with the adjacent sides of the two connecting discs (221) fixedly connected to both ends of the oil extraction pipe body (21), and multiple L-shaped grooves (222) opened on the distant sides of the two connecting discs (221).

5. The anti-clogging oil pump for downhole oil sands well development according to claim 3, characterized in that: The connecting sealing assembly (31) includes a connecting base (311), with the two connecting bases (311) being detachably connected on opposite sides to the two connecting assemblies (22), and a conduit sealing ring (312) being fixedly connected to the opposite sides of the two connecting bases (311), with the conduit sealing ring (312) being fixedly connected to the bottom of a plurality of L-shaped protrusions (32).

6. The anti-clogging oil pump for downhole oil sands well development according to claim 1, characterized in that: The large filter assembly (34) includes a detachable filter disc (341), the exterior of which is detachably connected to the interior of the outer tube (33), and the interior of the detachable filter disc (341) is provided with a plurality of large filter holes (342).

7. The anti-clogging oil pump for downhole oil sands well development according to claim 2, characterized in that: The sealing cap connecting mechanism (44) includes a y-axis connecting column (441), the left side of which is fixedly connected to the top of the z-axis connecting column (43), and the right side of which is fixedly connected to a z-axis fixing column (442).

8. The anti-clogging oil pump for downhole oil sands well development according to claim 7, characterized in that: The anti-backflow sealing assembly (45) includes a fixed connecting block (451), the top of which is fixedly connected to the bottom of the z-axis fixed column (442), and an anti-backflow sealing ring (452) is fixedly connected to the bottom of the fixed connecting block (451). The outer side of the anti-backflow sealing ring (452) is slidably connected to the inner wall of the outer conduit (41).

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