Tools for quickly removing the valve body of a profile control pump from the pump barrel

Abstract

This utility model relates to the technical field of profile control pump repair tools, and is a tool for quickly removing the valve body of a profile control pump from the pump barrel. It includes a support frame, a lead screw, a drive mechanism, a fixing ring, a first slip, and a second slip. This utility model has a reasonable and compact structure. When the drive mechanism moves the lead screw downwards, the lead screw can send the first slip, the second slip, and the fixing ring into the pump body. The lower ends of the first and second slips enter the valve body. Then, by rotating the lead screw, the lower end of the lead screw extends into the first and second slips. This causes the lower ends of the first and second slips to move away from each other and press against the inner wall of the valve body. Then, the drive mechanism moves the lead screw upwards, thus pulling the valve body out of the pump body. This method not only allows for the replacement of damaged parts on the valve body in a shorter time, but also solves the problems of manpower and safety in production, and also solves the problem of prolonged pump removal causing poor liquid injection and affecting the profile control effect.

Description

Technical Field

[0001] This utility model relates to the technical field of profile control pump repair tools, and is a tool for quickly removing the valve of a profile control pump from the pump barrel. Background Technology

[0002] During the profile control and displacement process in oil and water wells, profile control fluid is injected into the wellbore using a profile control pump. Due to the continuous and prolonged injection of this fluid, the valve components inside the pump body may become damaged and require replacement. The usual practice is to remove the valve from the pump body and replace it with a new one. However, due to prolonged operation of the profile control pump, the valve may become stuck inside the pump body, making it difficult to remove. A common pump-removing tool involves placing a threaded steel pipe, approximately 60 cm long, with a gravity tray (a round iron block) and a fixing baffle on one side (to hold the gravity tray in place), and a casing with an internal thread on the other side, on a second-level platform above the valve (the outer side of the second-level platform has a buckle). During operation, one person holds the casing, and the gravity tray (round iron block) is used to repeatedly impact the valve, slowly lifting it out. This method is unsafe, time-consuming, and labor-intensive. It often takes more than two hours to remove a valve from the pump body (a pump has three valves). This wastes the pump's operating time, requires two people to work together, is labor-intensive, and also delays normal production. Summary of the Invention

[0003] This utility model provides a tool for quickly removing the valve body of a profiled pump from the pump barrel, overcoming the shortcomings of the prior art. It can effectively solve the problems of high labor intensity, long working time, and delay in normal production when removing the valve body from the pump body.

[0004] The technical solution of this utility model is achieved through the following measures: A tool for quickly removing the valve body of a profile-adjusting pump from the pump barrel, comprising a support frame, a lead screw, a drive mechanism, a fixing ring, a first slip, and a second slip. The lead screw passes through the support frame. A drive mechanism capable of moving the lead screw up and down is detachably fixed to the upper side of the support frame. A fixing ring is provided below the support frame. The first slip and the second slip are symmetrically installed front and rear within the fixing ring. Outwardly protruding clamping platforms are fixed to the rear lower end of the first slip and the front lower end of the second slip. A tool tightly fitted onto the first slip is provided above the fixing ring. The outer side of the first and second slips are elastic rings. The front side of the second slip has two symmetrically arranged rear grooves with openings facing forward. The rear side of the first slip has a front groove that corresponds to the rear groove. Each rear groove and the corresponding front groove form a rotating hole. A rotating pin with its end fixed to the inner side of the fixed ring is rotatably installed in each rotating hole. The rear side of the middle of the first slip and the front side of the middle of the second slip have threaded grooves that can be screwed together with the lead screw. The right side of the lead screw spirals to the right into the threaded groove, which can make the lower end of the first slip and the right end of the second slip move away from each other.

[0005] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0006] The aforementioned support frame may include a fixed plate and a support sleeve. The outer side of the support sleeve has several radially through operating channels evenly distributed along the circumference. The fixed plate is fixedly installed on the inner side of the upper end of the support sleeve. The upper end of the fixed plate is provided with a threaded hole that runs vertically through the upper part. The driving mechanism is a screw jack. The lower end of the cylinder of the screw jack is screwed into the threaded hole. The lower end of the telescopic rod of the screw jack is rotatably installed together with the upper end of the lead screw.

[0007] The lower end of the telescopic rod of the aforementioned screw jack can be fixedly installed with a connecting sleeve. The inner side of the lower end of the connecting sleeve is provided with a fixed ring platform fixedly installed on the upper end of the screw rod. The inner side of the lower end of the connecting sleeve corresponding to the lower end of the fixed ring platform is fixedly fitted with a limiting ring platform fitted on the outer side of the screw rod. The outer side of the upper part of the screw rod corresponding to the lower end of the limiting ring platform is fixedly installed with a rotating ring platform. The outer side of the lower part of the screw rod is screwed with an anti-loosening nut.

[0008] The length and width of the above-mentioned operating channels should not be less than 10cm.

[0009] The aforementioned fixing ring has two radially penetrating mounting screw holes symmetrically distributed on the outer side, and the end of the rotating pin is screwed into the corresponding mounting screw hole.

[0010] The aforementioned card platform can be arc-shaped, with the outer diameter of the card platform being larger than the outer diameter of the fixing ring. The upper outer side of the first card and the upper outer side of the second card are both provided with semi-circular mounting grooves, and the elastic ring is tightly fitted into the mounting grooves.

[0011] This utility model has a reasonable and compact structure. The tool of this application uses a drive mechanism to move the lead screw up and down. When the drive mechanism moves the lead screw downward, the lead screw can send the first slip, the second slip, and the fixing ring into the pump body. The lower ends of the first slip and the second slip enter the valve body. Then, the lead screw is rotated, and the lower end of the lead screw extends into the first slip and the second slip. In this way, the lower ends of the first slip and the second slip move away from each other and press against the inner wall of the valve body. Then, the drive mechanism moves the lead screw upward, so that the valve body can be pulled out of the pump body. This not only allows the damaged parts on the valve body in the pump body to be replaced in a shorter time, but also solves the problems of manpower and safe production, and also solves the problem that the long pump-pulling time causes poor liquid injection and affects the profile adjustment effect. Attached Figure Description

[0012] Appendix Figure 1 These are schematic diagrams of the front cross-sectional structure of embodiments one to six of this utility model during use.

[0013] Appendix Figure 2 This is a top sectional view of the fixing ring in embodiments one to six of this utility model.

[0014] The codes in the attached diagram are as follows: 1 is the lead screw, 2 is the fixed ring, 3 is the first slip, 4 is the second slip, 5 is the clamping platform, 6 is the elastic ring, 7 is the fixed plate, 8 is the support sleeve, 9 is the operating channel, 10 is the screw jack, 11 is the cylinder, 12 is the telescopic rod, 13 is the rotating pin, 14 is the fixed ring platform, 15 is the limiting ring platform, 16 is the rotating ring platform, 17 is the anti-loosening nut, 18 is the pump body, 19 is the valve body, 20 is the connecting sleeve, and 21 is the clamping groove. Detailed Implementation

[0015] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0016] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0017] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0018] Example 1: As shown in the attached document Figure 1 , 2 As shown, the tool for quickly removing the valve body of the profile control pump from the pump barrel includes a support frame, a lead screw 1, a drive mechanism, a fixing ring 2, a first slip 3, and a second slip 4. The lead screw 1 passes through the support frame. A drive mechanism that allows the lead screw 1 to move up and down is detachably fixed on the upper side of the support frame. A fixing ring 2 is located below the support frame. The first slip 3 and the second slip 4 are symmetrically installed in the fixing ring 2. An outwardly protruding clamping platform 5 is fixed to the rear lower end of the first slip 3 and the front lower end of the second slip 4. Above the fixing ring 2, a second slip is tightly fitted onto the outside of the first slip 3 and the second slip. The outer elastic ring 6 of the second slip 4 has two symmetrically arranged front grooves with openings facing forward on the front side. The rear side of the first slip 3 has a front groove corresponding to the rear groove. Each rear groove and the corresponding front groove form a rotating hole. Each rotating hole has a rotating pin 13 whose end is fixedly installed with the inner side of the fixing ring 2. The rear side of the middle of the first slip 3 and the front side of the middle of the second slip 4 have threaded grooves that can be screwed together with the lead screw 1. The right side of the lead screw 1 spirals to the right into the threaded groove so that the lower end of the first slip 3 and the right end of the second slip 4 are far apart from each other.

[0019] Depending on the requirements, the first slip 3 and the second slip 4 have the same structure, and their outer contours are both arc-shaped. The elastic ring 6 is a known technology, such as a rubber band or a spring ring. The tool of this application uses a drive mechanism to move the lead screw 1 up and down. When the drive mechanism moves the lead screw 1 downward, the lead screw 1 can send the first slip 3, the second slip 4, and the fixing ring 2 into the pump body 19. The lower ends of the first slip 3 and the second slip 4 enter the valve body 20. Then, the lead screw 1 is rotated, and the lower end of the lead screw 1 extends into the first slip 3 and the second slip 4. In this way, after the lower ends of the first slip 3 and the second slip 4 move away from each other (the lower ends of the first slip 3 and the lower ends of the second slip 4 swing outward around the rotating pin 13), they press against the inner wall of the valve body 20. Then, the drive mechanism moves the lead screw 1 upward, so that the valve body 20 can be pulled out from the pump body 19. This not only allows the damaged parts on the valve body 20 in the pump body 19 to be replaced in a shorter time, but also solves the problems of manpower and safe production, and also solves the problem of poor liquid injection caused by long pump dismantling time, which affects the profile adjustment effect.

[0020] The tool described above for quickly removing the valve body of the profile control pump from the pump barrel can be further optimized and / or improved according to actual needs:

[0021] Example 2: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the support frame includes a fixed plate 7 and a support sleeve 8. Several radially through operating channels 9 are evenly distributed along the circumference on the outer side of the support sleeve 8. The fixed plate 7 is fixedly installed on the inner side of the upper end of the support sleeve 8. The upper end of the fixed plate 7 is provided with a threaded hole that runs vertically through the upper part. The driving mechanism is a screw jack 10. The lower end of the cylinder 11 of the screw jack 10 is screwed into the threaded hole. The lower end of the telescopic rod 12 of the screw jack 10 is rotatably installed together with the upper end of the lead screw.

[0022] Based on the requirements, the screw jack 10 is a known hand-cranked screw jack. During use, this design facilitates the assembly and disassembly of the support frame and the screw jack 10, making tool transportation and use convenient. In use, the lower end of the support sleeve 8 rests against the upper end of the pump body 19. Turning the handle of the screw jack 10 clockwise extends the telescopic rod 12, causing the lead screw 1 to move downwards. The lead screw 1 drives the first slip 3 and the second slip 4 to penetrate into the valve body 20. Then, rotating the lead screw 1 causes its right end to move upwards, separating the lower ends of the first slip 3 and the second slip 4, which then lock into the groove 21 inside the valve body 20. Turning the handle of the screw jack 10 counterclockwise retracts the telescopic rod 12, causing the lead screw 1 to move upwards. This allows the valve body 20 to be pulled out of the pump body 19 using the first slip 3 and the second slip 4. The operation is simple and convenient.

[0023] Example 3: As an optimization of the above examples, as shown in the appendix. Figure 1 ,2 As shown, a connecting sleeve 20 is fixedly installed at the lower end of the telescopic rod 12 of the screw jack 10. A fixing ring platform 14 is fixedly installed on the upper end of the lead screw 1 on the inner side of the lower end of the connecting sleeve 20. A limiting ring platform 15 is fixedly fitted on the outer side of the lead screw 1 on the inner side of the lower end of the connecting sleeve 20 corresponding to the lower end of the fixing ring platform 14. A rotating ring platform 16 is fixedly installed on the outer side of the upper part of the lead screw 1 corresponding to the lower end of the limiting ring platform 15. An anti-loosening nut 17 is screwed onto the outer side of the lower part of the lead screw 1.

[0024] As required, the lower outer end of the telescopic rod 12 is screwed onto the upper inner side of the connecting sleeve 20. During use, this design facilitates the rotational installation of the lower end of the telescopic rod 12 of the screw jack 10 together with the upper end of the lead screw 1. It also prevents relative movement between the telescopic rod 12 and the lead screw 1. This ensures that during the pulling out of the valve 20, the lower ends of the first slip 3 and the second slip 4 can hook onto the groove 21 inside the valve 20, preventing the first slip 3 and the second slip 4 from separating from the valve 20 after the lead screw 1 moves upward, thus avoiding failure to remove the valve 20.

[0025] Example 4: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the length and width of the operation channel 9 are both no less than 10cm.

[0026] According to requirements, the support sleeve 8 is 32cm long and 15cm in inner diameter. The operating channel 9 is 13cm wide and 20cm long. The outer side of the fixing plate 7 is fixedly installed to the inner side of the upper end of the support sleeve 8 by welding. During use, this setting ensures a certain rotation space for the lead screw 1, increases the rotation speed of the lead screw 1, and thus increases the axial movement speed of the lead screw 1 within the thread groove. This allows for quick separation of the lower ends of the first slip 3 and the second slip 4, which then engage in the internal slot 21 of the valve body 20. Alternatively, it allows the lower ends of the first slip 3 and the second slip 4 to approach each other and then separate from the internal slot 21 of the valve body 20 for removal. Furthermore, the operating channel 9 reduces the weight of the support frame, thereby reducing the labor intensity of manually holding the support frame when removing the valve body 20.

[0027] Example 5: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, there are two radially penetrating mounting screw holes symmetrically distributed on the outer side of the fixing ring 2, and the end of the rotating pin 13 is screwed into the mounting screw hole at the corresponding position.

[0028] According to requirements, the distance between the rear side of the first slip 3 and the front side of the second slip 4, corresponding to the position below the rotating pin 13, gradually increases from left to right. During use, the installation screw holes facilitate the disassembly and assembly of the rotating pin 13, and also facilitate the assembly of the first slip 3 and the second slip 4 together and their hinged connection to the fixing ring 2. Alternatively, the rotating pin 13 can be fixedly installed to the inner side of the fixing ring 2 by welding. This prevents the first slip 3, the second slip 4, and the fixing ring 2 from separating, improving the stability between the fixing ring 2, the first slip 3, and the second slip 4, and avoiding separation of the first slip 3, the second slip 4, and the valve body 20 during the removal of the valve body 20 from the pump body 19.

[0029] Example 6: As an optimization of the above examples, as shown in the appendix Figure 1 , 2 As shown, the mounting plate 5 is arc-shaped, and the outer diameter of the mounting plate 5 is larger than the outer diameter of the fixing ring 2. The upper outer side of the first locking plate 3 and the upper outer side of the second locking plate 4 are both provided with semi-circular mounting grooves, and the elastic ring 6 is tightly fitted into the mounting groove.

[0030] Based on the requirements, the width of the mounting groove is 2mm, the width of the fixing ring is 2cm, and the inner diameter is 8cm. During use, semi-circular mounting grooves are provided on the upper outer side of the first slip 3 and the upper outer side of the second slip 4. These mounting grooves on the outer side of the first slip 3 and the second slip 4 can form mounting ring grooves. The elastic ring 6 is installed in the mounting groove to prevent separation from the first slip 3 and the second slip 4. The elastic ring 6 allows the upper parts of the first slip 3 and the second slip 4 to move closer together, thus ensuring that the lower outer side of the screw 1, the rear side of the first slip 3, and the front side of the second slip 4 are screwed together. The locking platform 5 is arc-shaped, and its outer diameter is larger than that of the fixing ring 2. When the lower end of the screw 1 rotates and moves downward relative to the first slip 3 and the second slip 4, the locking platform 5 at the lower end of the first slip 3 and the locking platform 5 at the lower end of the second slip 4 separate from each other and lock into the locking groove 21 of the valve body 20. Then, the screw 1 is moved upward by the drive mechanism, which can pull the valve body 20 out of the pump body 19, facilitating the replacement and maintenance of the valve body 20.

[0031] The above technical features constitute various embodiments of this utility model, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A tool for quickly removing a profile control pump valve from a pump barrel, comprising: The device includes a support frame, a lead screw, a drive mechanism, a fixing ring, a first clamp, and a second clamp. The lead screw passes through the support frame. A drive mechanism that allows the lead screw to move up and down is detachably fixed on the upper side of the support frame. A fixing ring is located below the support frame. The first clamp and the second clamp are symmetrically installed front and back within the fixing ring. A protruding clamping platform is fixed to the rear lower end of the first clamp and the front lower end of the second clamp. An elastic ring is located above the fixing ring and tightly fitted onto the outer sides of the first clamp and the second clamp. The front side of the second clamp has two symmetrically arranged rear grooves with openings facing forward. The rear side of the first clamp has a front groove that corresponds to the rear groove. Each rear groove and the corresponding front groove form a rotating hole. A rotating pin with its end fixed to the inner side of the fixing ring is rotatably installed in each rotating hole. The rear middle part of the first clamp and the front middle part of the second clamp have threaded grooves that can be screwed together with the lead screw. The right side of the lead screw spirals to the right into the threaded groove, which can make the lower end of the first clamp and the right end of the second clamp move away from each other.

2. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 1, characterized in that... The support frame includes a fixed plate and a support sleeve. Several radially through operating channels are evenly distributed along the circumference on the outer side of the support sleeve. The fixed plate is fixedly installed on the inner side of the upper end of the support sleeve. The upper end of the fixed plate is provided with a threaded hole that runs vertically through the upper part. The driving mechanism is a screw jack. The lower end of the cylinder of the screw jack is screwed into the threaded hole. The lower end of the telescopic rod of the screw jack is rotatably installed together with the upper end of the lead screw.

3. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 2, characterized in that... The lower end of the telescopic rod of the screw jack is fixedly installed with a connecting sleeve. The inner side of the lower end of the connecting sleeve is provided with a fixed ring platform fixedly installed on the upper end of the screw rod. The inner side of the lower end of the connecting sleeve corresponding to the lower end of the fixed ring platform is fixedly fitted with a limiting ring platform fitted on the outer side of the screw rod. The outer side of the upper part of the screw rod corresponding to the lower end of the limiting ring platform is fixedly installed with a rotating ring platform. The outer side of the lower part of the screw rod is screwed with an anti-loosening nut.

4. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 2 or 3, characterized in that... The length and width of the operating channel shall not be less than 10cm.

5. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 1, 2, or 3, characterized in that... Two radially penetrating mounting screw holes are symmetrically distributed on the outer side of the fixing ring, and the end of the rotating pin is screwed into the corresponding mounting screw hole.

6. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 4, characterized in that... Two radially penetrating mounting screw holes are symmetrically distributed on the outer side of the fixing ring, and the end of the rotating pin is screwed into the corresponding mounting screw hole.

7. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 1, 2, 3, or 6, characterized in that... The clamping platform is arc-shaped, and its outer diameter is larger than that of the fixing ring. The upper outer side of the first clamping plate and the upper outer side of the second clamping plate are both provided with semi-circular mounting grooves, and the elastic ring is tightly fitted into the mounting grooves.

8. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 4, characterized in that... The clamping platform is arc-shaped, and its outer diameter is larger than that of the fixing ring. The upper outer side of the first clamping plate and the upper outer side of the second clamping plate are both provided with semi-circular mounting grooves, and the elastic ring is tightly fitted into the mounting grooves.

9. The tool for quickly removing the valve body of a profile control pump from the pump barrel according to claim 5, characterized in that... The clamping platform is arc-shaped, and its outer diameter is larger than that of the fixing ring. The upper outer side of the first clamping plate and the upper outer side of the second clamping plate are both provided with semi-circular mounting grooves, and the elastic ring is tightly fitted into the mounting grooves.

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