Quick-connection type special joint for well repair sand washing

Abstract

The utility model discloses a quick -wired formula is specially used for connecting piece of well repair sand washing, including liquid supply pipe, the surface fixed connection of liquid supply pipe has a pair of rotary board, the inside slide of a pair of rotary board is installed with the slider, the opposite side of a pair of slider is connected with the same placement box that rotates, the inner wall fixed connection of placement box has the sector head, the upper surface fixed connection of placement box has the U -shaped board, the upper surface fixed connection of U -shaped board has the shunt box. The utility model discloses through the rotary adjusting disc, changes the plug -in position of the rounded corner head, makes the position of through -hole and second water flow hole and fourth water flow hole correspond, and the clean water that flows into the sector head is discharged through the second sand washing hole, and the shape of first sand washing hole and second sand washing hole is different, because second sand washing hole gathers water flow together, and first sand washing hole disperses water flow, under the pressure effect of same water flow, and the pressure that washes causes is different, and the operator can adjust and use according to actual needs.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering technology, and in particular to a quick-connect well workover and sand flushing joint. Background Technology

[0002] Sand flushing is a process in the petroleum industry for removing sand accumulated at the bottom of wells. It uses fluid flow to carry the sand to the surface to restore oil well production. This process is divided into forward and reverse sand flushing, in which forward flushing first disperses the sand blockage, and then reverse flushing removes the mud and sand.

[0003] During well workover and sand flushing operations, a special connector is required for fluid supply. Existing connectors cannot achieve quick connection during installation, and their water outlet is limited to a single form, making it impossible to perform effective sand flushing operations according to site requirements. To solve these problems, a quick-connect well workover and sand flushing special connector is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems raised by the prior art by proposing a quick-connect well workover and sand flushing special connector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-connect well workover and sand flushing connector includes a fluid supply pipe. A pair of rotating plates are fixedly connected to the surface of the fluid supply pipe. A slider is slidably installed inside the pair of rotating plates. The opposite surfaces of the pair of sliders are rotatably connected to the same placement box. A fan-shaped head is fixedly connected to the inner wall of the placement box. A U-shaped plate is fixedly connected to the upper surface of the placement box. A diversion box is fixedly connected to the upper surface of the U-shaped plate. The fluid supply pipe and the inner wall of the diversion box are fixedly connected to the same corrugated pipe. A quick-release adjustment mechanism is provided on the inner wall of the rotating plates.

[0006] Preferably, the quick-release adjustment mechanism includes a clearance groove formed on the inner wall of the rotating plate, a triangular block slidably connected to the inner wall of the clearance groove, a pull rod slidably connected to the inner wall of the rotating plate, the top end of the pull rod being fixedly connected to the lower surface of the triangular block, the surface of the triangular block being in contact with the surface of the slider, and a first return spring being sleeved on the surface of the pull rod, the top end of the first return spring being fixedly connected to the lower surface of the triangular block, and the bottom end of the first return spring being fixedly connected to the inner bottom wall of the rotating plate.

[0007] Furthermore, the surfaces of the diversion box and the U-shaped plate are provided with a first water flow hole and a second water flow hole, and the inner wall of the U-shaped plate is rotatably connected to an adjustment plate, the surface of which is provided with a through hole.

[0008] Preferably, O-rings are fixedly connected to both the upper and lower surfaces of the adjusting plate, and the surface of the O-rings is pressed and adhered to the inner wall of the U-shaped plate. The surfaces of the U-shaped plate, the placement box, and the fan-shaped head are provided with a third drainage hole and a fourth drainage hole.

[0009] Furthermore, the inner wall of the fan-shaped head is provided with a first sand-filling hole and a second sand-filling hole, and the inner wall of the U-shaped plate is provided with a second groove and a first groove.

[0010] Preferably, the inner wall of the adjusting disc is slidably connected with a rounded corner head, the surface of which is adapted to the inner wall of the first groove and the second groove, and the inner wall of the adjusting disc is fixedly connected with a second return spring, the bottom end of which is fixedly connected to the upper surface of the rounded corner head.

[0011] The beneficial effects of this utility model are as follows: By rotating the adjustment disc, the insertion position of the rounded head is changed so that the through hole corresponds to the positions of the second and fourth water flow holes. The clean water flowing into the fan-shaped head is discharged through the second sand flushing hole. The shapes of the first and second sand flushing holes are different. Since the second sand flushing hole gathers the water flow together, while the first sand flushing hole disperses the water flow, the pressure caused by flushing is different under the same water flow pressure. The operator can adjust the use according to actual needs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a quick-connect well workover and sand flushing connector proposed in this utility model. Figure 2 This is a cross-sectional view of the diversion box in a quick-connect well workover and sand flushing joint proposed in this utility model. Figure 3 This utility model proposes a quick-connect well workover and sand flushing connector. Figure 2 Enlarged structural diagram at point A; Figure 4 This is a cross-sectional view of the fan-shaped head in a quick-connect well workover and sand flushing joint proposed in this utility model. Figure 5 This is a three-dimensional structural diagram of the adjusting disc in a quick-connect well workover and sand flushing joint proposed in this utility model. Figure 6 This is a three-dimensional structural diagram of the rotating plate in a quick-connect well workover and sand flushing joint proposed in this utility model. Figure 7 This is a three-dimensional structural diagram of the rounded corner head in a quick-connect well workover and sand flushing joint proposed in this utility model.

[0013] In the diagram: 1. Liquid supply pipe; 2. Rotating plate; 3. Sliding block; 4. Placement box; 5. Corrugated pipe; 6. Fan-shaped head; 7. Second water outlet; 8. First water outlet; 9. Adjusting plate; 10. Second groove; 11. U-shaped plate; 12. O-ring seal; 13. Triangular block; 14. Pull rod; 15. First return spring; 16. Second return spring; 17. Rounded corner head; 18. First groove; 19. Fourth water outlet; 20. Third water outlet; 21. First sand flushing hole; 22. Second sand flushing hole; 23. Through hole; 24. Diverter box; 25. Clearance groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-7 A quick-connect well workover and sand flushing connector includes a fluid supply pipe 1, a pair of rotating plates 2 fixedly connected to the surface of the fluid supply pipe 1, a slider 3 slidably installed inside the pair of rotating plates 2, a common placement box 4 rotatably connected to the opposite surfaces of the pair of sliders 3, a fan-shaped head 6 fixedly connected to the inner wall of the placement box 4, a U-shaped plate 11 fixedly connected to the upper surface of the placement box 4, a diversion box 24 fixedly connected to the upper surface of the U-shaped plate 11, a common corrugated pipe 5 fixedly connected to the inner wall of the fluid supply pipe 1 and the diversion box 24, and a quick-release adjustment mechanism provided on the inner wall of the rotating plate 2.

[0016] By setting up the placement box 4, the fan-shaped head 6 is installed. By setting up the corrugated pipe 5, the liquid in the supply pipe 1 is transferred to the diversion box 24 through the corrugated pipe 5. By setting up the diversion box 24, the liquid can be discharged through the first water outlet 8 and the second water outlet 7. By setting up the quick-release adjustment mechanism, the overall quick installation of the placement box 4 and the adjustment of the sand flushing water outlet shape can be realized.

[0017] In this utility model, reference is made to Figure 2 and Figure 6 The quick-release adjustment mechanism includes a clearance groove 25 formed on the inner wall of the rotating plate 2. A triangular block 13 is slidably connected to the inner wall of the clearance groove 25. A pull rod 14 is slidably connected to the inner wall of the rotating plate 2. The top end of the pull rod 14 is fixedly connected to the lower surface of the triangular block 13. The surface of the triangular block 13 is in contact with the surface of the slider 3. A first return spring 15 is sleeved on the surface of the pull rod 14. The top end of the first return spring 15 is fixedly connected to the lower surface of the triangular block 13. The bottom end of the first return spring 15 is fixedly connected to the inner bottom wall of the rotating plate 2.

[0018] By setting the clearance groove 25, clearance space is provided for the triangular block 13 to slide up and down. By setting the pull rod 14, the triangular block 13 is pulled down. By setting the first reset spring 15, the triangular block 13 is driven up and reset. By setting the triangular block 13, the slider 3 is blocked on one side, and the slider 3 is kept stable in the rotating plate 2.

[0019] In this utility model, reference is made to Figure 2 and Figure 5 The diversion box 24 and the U-shaped plate 11 are provided with a first water flow hole 8 and a second water flow hole 7. The inner wall of the U-shaped plate 11 is rotatably connected to an adjustment plate 9, and the surface of the adjustment plate 9 is provided with a through hole 23.

[0020] By providing through hole 23, the water generated in the diversion box 24 can be discharged and transferred through through hole 23.

[0021] In this utility model, reference is made to Figure 2 and Figure 5 The upper and lower surfaces of the adjusting plate 9 are fixedly connected with O-ring seals 12. The surface of the O-ring seals 12 is pressed and adhered to the inner wall of the U-shaped plate 11. The surfaces of the U-shaped plate 11, the placement box 4 and the fan-shaped head 6 are provided with a third water flow hole 20 and a fourth water flow hole 19.

[0022] Waterproof sealing is achieved by setting an O-ring 12, and water can be discharged through different paths by setting a third water outlet 20 and a fourth water outlet 19.

[0023] In this utility model, reference is made to Figure 2 , Figure 3 and Figure 4 The inner wall of the fan-shaped head 6 is provided with a first sand-purging hole 21 and a second sand-purging hole 22, and the inner wall of the U-shaped plate 11 is provided with a second groove 10 and a first groove 18.

[0024] By setting the first flushing hole 21 and the second flushing hole 22, since the shapes of the first flushing hole 21 and the second flushing hole 22 are different, the second flushing hole 22 gathers the water flow together, while the first flushing hole 21 disperses the water flow. Under the same water flow pressure, the flushing pressure is different, and the operator can adjust it according to actual needs.

[0025] In this utility model, reference is made to Figure 3 and Figure 7 The inner wall of the adjusting plate 9 is slidably connected to a rounded corner head 17. The surface of the rounded corner head 17 is adapted to the inner wall of the first groove 18 and the second groove 10. The inner wall of the adjusting plate 9 is fixedly connected to a second return spring 16. The bottom end of the second return spring 16 is fixedly connected to the upper surface of the rounded corner head 17.

[0026] By setting the rounded corner head 17, when the surface of the rounded corner head 17 rubs against the inner wall of the first groove 18 or the second groove 10, it will be driven to retract into the adjusting plate 9, compressing the second return spring 16 to shorten it, and contacting the limit of the adjusting plate 9. By setting the second return spring 16, the positioning of the rounded corner head 17 is kept stable.

[0027] Working principle: Before sand flushing, the slider 3 can be pushed into the rotating plate 2. After the triangular block 13 contacts the surface of the slider 3, the first return spring 15 is compressed, which drives the pull rod 14 and the triangular block 13 to descend as a whole to avoid the impact. After completion, the triangular block 13 blocks one side of the slider 3 to maintain stability. During sand flushing, clean water is introduced into the supply pipe 1 and transported to the diversion box 24 through the corrugated pipe 5. At this time, since the through hole 23 is connected to the first water outlet 8 and the third water outlet 20, the clean water enters the fan-shaped head 6 and is discharged through multiple first sand flushing holes 21. The operator can rotate the adjusting plate 9 to drive the rounded corner head 17 to be compressed and the second return spring 15 is compressed. When spring 16 shortens, rounded head 17 retracts from first groove 18. After adjusting disc 9 rotates 180 degrees, rounded head 17 is inserted into second groove 10 for positioning under the action of second reset spring 16. At this time, through hole 23 corresponds to the positions of second water outlet 7 and fourth water outlet 19. Clean water flowing into fan-shaped head 6 is discharged through second flushing hole 22. The shapes of first flushing hole 21 and second flushing hole 22 are different. Second flushing hole 22 gathers water flow together, while first flushing hole 21 disperses water flow. Under the same water flow pressure, the flushing pressure is different, and the operator can adjust it according to actual needs.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-connect well workover and sand flushing connector, comprising a fluid supply pipe, characterized in that, A pair of rotating plates are fixedly connected to the surface of the liquid supply pipe. A slider is slidably installed inside the pair of rotating plates. The opposite surfaces of the pair of sliders are rotatably connected to the same placement box. A fan-shaped head is fixedly connected to the inner wall of the placement box. A U-shaped plate is fixedly connected to the upper surface of the placement box. A diversion box is fixedly connected to the upper surface of the U-shaped plate. The liquid supply pipe and the inner wall of the diversion box are fixedly connected to the same corrugated pipe. A quick-release adjustment mechanism is provided on the inner wall of the rotating plate.

2. The quick-connect well workover and sand flushing connector according to claim 1, characterized in that, The quick-release adjustment mechanism includes a clearance groove formed on the inner wall of the rotating plate. A triangular block is slidably connected to the inner wall of the clearance groove. A pull rod is slidably connected to the inner wall of the rotating plate. The top end of the pull rod is fixedly connected to the lower surface of the triangular block. The surface of the triangular block is in contact with the surface of the slider. A first return spring is sleeved on the surface of the pull rod. The top end of the first return spring is fixedly connected to the lower surface of the triangular block. The bottom end of the first return spring is fixedly connected to the inner bottom wall of the rotating plate.

3. The quick-connect well workover and sand flushing connector according to claim 1, characterized in that, The diversion box and the U-shaped plate are provided with a first water flow hole and a second water flow hole on their surfaces. An adjustment plate is rotatably connected to the inner wall of the U-shaped plate, and the surface of the adjustment plate is provided with a through hole.

4. A quick-connect well workover and sand flushing connector according to claim 3, characterized in that, The upper and lower surfaces of the adjustment plate are fixedly connected with O-rings. The surface of the O-rings is pressed against the inner wall of the U-shaped plate. The surfaces of the U-shaped plate, the placement box, and the fan-shaped head are provided with a third drainage hole and a fourth drainage hole.

5. A quick-connect well workover and sand flushing connector according to claim 1, characterized in that, The inner wall of the fan-shaped head is provided with a first sand-filling hole and a second sand-filling hole, and the inner wall of the U-shaped plate is provided with a second groove and a first groove.

6. A quick-connect well workover and sand flushing connector according to claim 3, characterized in that, The inner wall of the adjusting disc is slidably connected to a rounded corner head, the surface of which is adapted to the inner wall of the first groove and the second groove. The inner wall of the adjusting disc is fixedly connected to a second return spring, the bottom end of which is fixedly connected to the upper surface of the rounded corner head.

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