Anti-channeling treatment device for sand filling pipe
By designing a sand filling pipe anti-bounce treatment device, and using the coordination of the movable door and wire rope, the problems of flow flow in the inner wall of the sand filling pipe and the control of the oil pipe string in the well are solved, and the rapid installation and thorough control of the oil pipe string in the well are achieved, ensuring experimental data accuracy and stability of the well.
Patent Information
- Application Number
- CN202420780445.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-16
AI Technical Summary
In the physical simulation experiment of sand filling pipes, despite the matte treatment, the experimental fluid is still prone to flow along the inner wall of the sand filling pipe, resulting in inaccurate experimental data and difficulty in experimental control. The existing equipment is installed when the oil pipe column in the well is squirmed up. The anti-bounce clamping time is long, and the oil pipe is unable to control the upward flow in time, resulting in the blowout being out of control.
A sand filling pipe anti-bounce treatment device is designed, including the body, limiting structure and movable door. By putting the oil pipe anti-bounce device on the oil pipe column, the movable door and wire rope can be used to quickly install and prevent the oil pipe column from movable door and wire rope. Exit to ensure control of the oil pipe string in the well.
It realizes rapid installation and control when the oil pipe string in the well bursts up, prevents blowouts from getting out of control, and ensures the accuracy of experimental data and the stability of experimental fluids.
Smart Images
Figure CN222228525U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil development equipment, in particular to a sand filling pipe anti-channeling processing device. Background Art
[0002] Compared with the physical simulation experiment using cores, the filling of sand-filled tubes is more convenient and quick, the permeability range available for experimental selection is larger, and its length can be adjusted at will according to the experimental needs. When conducting oil displacement or seepage experiments, sand-filled tubes are increasingly valued as experimental media. After conducting oil displacement or seepage experiments many times, it was found that although the inner wall of the sand-filled tube was frosted during design, the phenomenon of experimental fluid channeling along the inner wall of the sand-filled tube still occurred frequently, which brought many difficulties to the smooth implementation of the physical simulation experiment of the sand-filled tube, and also brought many interferences to the accurate acquisition of experimental data and the clarification of experimental laws. In addition, the conventional manual method of injecting epoxy resin and adding sand into the inner wall of the sand-filled tube easily caused the unevenness of the anti-channeling layer on the inner wall of the sand-filled tube.
[0003] In the prior art, a Chinese patent with a publication number of CN205786620U is proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: The utility model relates to the technical field of oil development equipment, and specifically to a device that effectively prevents the experimental fluid from flowing along the inner wall of the sand-filled pipe in the sand-filled pipe seepage experiment. The sand-filled pipe anti-channeling treatment device comprises a sand-filled pipe and a base, the base is provided with two movable brackets and a waste liquid bucket, the movable brackets are respectively provided with trays, the sand-filled pipe is arranged on the two trays, the projection length of the sand-filled pipe on the base is greater than the distance between the two movable brackets, and the waste liquid bucket is located directly below the inlet end of the sand-filled pipe; the sand-filled pipe head is connected to a rotating system. After the epoxy resin and quartz sand are installed in the utility model, the rotating system is turned on to rotate the sand-filled pipe at a uniform speed, so that the anti-channeling layer on the inner wall of the sand-filled pipe is uniform and it is not easy to cause channeling; the two movable brackets are selectively placed in a number of threaded holes on the slideway to adjust the distance between the two movable brackets; the utility model has stronger applicability and is easy to promote.
[0004] After epoxy resin and quartz sand are installed in the sand filling pipe of the utility model, the rotation system is turned on to rotate the sand filling pipe at a uniform speed, so that the anti-channeling layer on the inner wall of the sand filling pipe is uniform and channeling is not easy to occur; two movable brackets are selectively arranged in several threaded holes on the slide slot to adjust the distance between the two movable brackets; the utility model has stronger applicability and is easy to promote, but when the anti-channeling fixture is installed when the oil pipe column in the well flows upward, it takes a long time to tighten the fixing bolts with a wrench, and the oil pipe cannot be controlled in time, thereby causing a blowout. Utility Model Content
[0005] The utility model aims to provide a sand filling pipe anti-channeling treatment device to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A sand filling pipe anti-channeling treatment device comprises a body, a limiting structure, an axial opening is opened on the body, and a radial groove is opened along the inner wall of the body, a movable door is fixedly connected with a handle, the handle passes through the radial groove and extends from the body, the movable door is slidably connected to the inner wall of the body; and side ears are symmetrically arranged on both sides of the body.
[0008] The above-mentioned technical solution is adopted, in which a steel wire rope is used to connect the oil pipe anti-slipping device to the flange short section of the wellhead casing four-way through the side ear. When the oil pipe string in the well jumps up, the main body ring is put on the oil pipe string that has started to jump up through the axial opening on the main body, and the handle located in the radial groove is turned to slide the movable door so that the movable door is located in the axial opening to prevent the oil pipe string from jumping out of the axial opening.
[0009] A further improvement of the technical solution of the utility model is that the movable door is arc-shaped, and the handle is fixedly connected to one side of the movable door.
[0010] The above technical solution is adopted, in which a necking structure is provided through the lower edge of the movable door; after the upward-jumping oil pipe coupling enters the anti-jumping device, the necking structure at the lower edge of the movable door blocks the oil pipe coupling; and then the oil pipe anti-jumping device is pulled by a steel wire rope fixed at the wellhead through the side ear, and the two cooperate with each other to completely control the upward-jumping of the oil pipe column.
[0011] A further improvement of the technical solution of the utility model is that the limiting structure is fixedly connected to the inner wall of the body and fixed to the limiting structure, the limiting structure is a flange formed by the body toward the cylindrical cavity, and the limiting structure is a boss arranged on the inner wall of the body.
[0012] The above technical solution is adopted, in which the handle is located at one end of the radial groove, the axial opening is open, and the movable door is connected to the inner wall of the body opposite to the axial opening; when the handle is slid from one end of the radial groove to the other end, the movable door slides along the inner wall of the body into the axial opening, thereby blocking the axial opening and preventing the oil pipe string from rushing out of the axial opening.
[0013] A further improvement of the technical solution of the utility model is that the wall thickness of one end of the body provided with the radial groove is greater than the wall thickness of the other opposite end, so as to form the limiting structure.
[0014] The above technical solution is adopted, in which a movable door is attached to the inner wall of the main body. When in use, the movable door slides into the axial opening to form a cavity with the inner wall of the main body, which allows the oil pipe column to pass through but does not allow the oil pipe coupling to pass through.
[0015] A further improvement of the technical solution of the utility model is that the width of the movable door is greater than the width of the axial opening.
[0016] The above technical solution is adopted, in which the cavity formed by the movable door and the inner wall of the body can be a radially completely closed cavity or a radially non-completely closed cavity. In order to better block the axial opening and prevent the oil pipe string from escaping, it is preferred that the cavity formed by the movable door and the inner wall of the body is a radially completely closed cavity.
[0017] A further improvement of the technical solution of the utility model is that the movable door and the handle are connected by threads.
[0018] The above-mentioned technical solution is adopted, in which a handle is located at one end of the radial groove, and a movable door is attached to the inner wall of the main body. When in use, the handle is moved to the other end of the radial groove, and the movable door slides into the axial opening, radially blocking the axial opening. The cavity formed with the inner wall of the main body is a radially completely closed cavity, thereby preventing the oil pipe string from rushing out of the axial opening during the upward movement.
[0019] A further improvement of the technical solution of the utility model is that a through hole is provided on the side ear.
[0020] The above technical solution is adopted, in which a movable door is attached to the inner wall of the main body, the threaded hole on the movable door is aligned with the radial groove, and the threaded end of the handle passes through the groove from the outside and is inserted into the threaded hole for connection and fixation.
[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0022] 1. The utility model provides a sand-filled pipe anti-channeling treatment device. The main body ring is sleeved on the oil pipe column through the axial opening, and then the handle is turned to make the movable door located in the axial opening, and the installation of the oil pipe anti-channeling device is completed. The oil pipe anti-channeling device can be quickly installed on the first oil pipe at the top when the oil pipe column in the well suddenly channels upward, and the oil pipe channeling is controlled in time to prevent the blowout from getting out of control.
[0023] 2. The utility model provides a sand-filled pipe anti-channeling treatment device. When the wellhead overflows suddenly and the oil pipe string in the well flows upward, the oil pipe anti-channeling device is buckled on the oil pipe string that has begun to flow upward, and the handle is turned to rotate and close the movable door. After the upward oil pipe joint hoop enters the anti-channeling device, it is blocked by the shoulder in the above-mentioned body. The D-type clip passing through the above-mentioned side ear and the length of the wire rope limit the height of the anti-channeling device and the oil pipe string to continue to flow upward. The two cooperate with each other to completely control the upward flow of the oil pipe string. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0025] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0026] Figure 3 It is a schematic diagram of the semi-main body structure of the utility model.
[0027] In the figure: 1. body; 2. limiting structure; 3. axial opening; 4. radial groove; 5. movable door; 6. handle; 7. side ear; 8. through hole. DETAILED DESCRIPTION
[0028] The present invention is further described in detail below in conjunction with the embodiments:
[0029] Example 1
[0030] like Figure 1-3 As shown, the utility model provides a sand filling pipe anti-channeling processing device, including a main body 1, a limiting structure 2, an axial opening 3 is opened on the main body 1, and a radial groove 4 is also opened along the inner wall of the main body 1, a movable door 5 is fixedly connected with a handle 6, the handle 6 passes through the radial groove 4 and extends from the main body 1, and the movable door 5 is slidably connected to the inner wall of the main body 1; and side ears 7 are symmetrically arranged on both sides of the main body 1.
[0031] In this embodiment, the flange short section of the casing spool at the wellhead is connected through the side ear 7. When the oil pipe string in the well jumps up, the main body 1 is put on the oil pipe string that has started to jump up through the axial opening 3 on the main body 1, and the handle 6 located in the radial groove 4 is turned to slide the movable door 5 so that the movable door 5 is located in the axial opening 3 to prevent the oil pipe string from jumping out of the axial opening 3; the lower edge of the movable door 5 provides a necking structure; after the jumping oil pipe coupling enters the anti-jumping device, the necking structure at the lower edge of the movable door 5 blocks the oil pipe coupling; the steel wire rope fixed at the wellhead through the side ear 7 is used to pull the oil pipe anti-jumping device, and the two cooperate with each other to completely control the jumping of the oil pipe string.
[0032] Example 2
[0033] like Figure 1-3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the movable door 5 is arc-shaped, the handle 6 is fixedly connected to one side of the movable door 5, the limiting structure 2 is fixedly connected to the inner wall of the main body 1 and fixed to the limiting structure 2, the limiting structure 2 is a flange formed by the main body 1 toward the cylindrical cavity, the limiting structure 2 is a boss arranged on the inner wall of the main body 1, and the wall thickness of one end of the main body 1 with a radial groove 4 is greater than the wall thickness of the other opposite end, forming a limiting structure 2.
[0034] In this embodiment, the movable door 5 is attached to the inner wall of the body 1. When in use, the movable door 5 slides into the axial opening 3 to form a cavity with the inner wall of the body 1. The cavity allows the oil pipe string to pass through, but does not allow the oil pipe coupling to pass through. The cavity formed by the movable door 5 and the inner wall of the body 1 is used for the oil pipe string to pass through from bottom to top. Therefore, the cavity formed by the movable door 5 and the inner wall of the body 1 can be a radially completely closed cavity or a radially non-completely closed cavity. In order to better block the axial opening 3 and prevent the oil pipe string from escaping, it is preferred that the cavity formed by the movable door 5 and the inner wall of the body 1 is a radially completely closed cavity, so that the flange is a structure integrally formed with the body 1, and the flange can be formed on any end of the body 1 or in the middle of the body 1, so that the limiting structure 2 is a boss set on the inner wall of the body 1.
[0035] Example 3
[0036] like Figure 1-3 As shown, based on Example 1, the utility model provides a technical solution: preferably, the width of the movable door 5 is greater than the width of the axial opening 3, the movable door 5 and the handle 6 are threadedly connected, and a through hole 8 is provided on the side ear 7.
[0037] In this embodiment, when the oil pipe coupling enters the oil pipe anti-channeling device, the flange formed toward the cylindrical cavity blocks the oil pipe coupling so that it cannot pass through the cavity of the main body 1. When the oil pipe coupling enters the oil pipe anti-channeling device, the thicker wall inside the main body 1 blocks the oil pipe coupling, and the blocking position is below the movable door 5, thereby forming a stronger blocking structure to prevent the movable door 5 from being damaged, so that the wire rope passes through the through hole 8 to connect the device to the wellhead casing four-way.
[0038] The working principle of the sand filling pipe anti-channeling treatment device is described in detail below.
[0039] like Figure 1-3As shown, when in use, when the upward oil pipe coupling enters the oil pipe anti-channeling device, the thicker wall inside the body 1 blocks the oil pipe coupling, and the blocking position is below the movable door 5, thereby forming a stronger blocking structure to prevent the movable door 5 from being broken. In the above-mentioned oil pipe anti-channeling device, in order to facilitate the installation of the device at the flange short section of the wellhead casing four-way, a through hole 8 can be provided on the side ear 7. When in use, the wire rope passes through the through hole 8 to connect the device to the wellhead casing four-way.
[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A sand filling pipe anti-channeling treatment device, comprising a body (1) and a limiting structure (2), characterized in that: The body (1) is provided with an axial opening (3), and a radial groove (4) is also provided along the inner wall of the body (1); a movable door (5) is fixedly connected to a handle (6), the handle (6) passes through the radial groove (4) and extends from the body (1); the movable door (5) is slidably connected to the inner wall of the body (1); and side ears (7) are symmetrically arranged on both sides of the body (1).
2. A sand-filled pipe anti-channeling treatment device according to claim 1, characterized in that: The movable door (5) is arc-shaped, and the handle (6) is fixedly connected to one side of the movable door (5).
3. The sand-filled pipe anti-channeling treatment device according to claim 1, characterized in that: The limiting structure (2) is fixedly connected to the inner wall of the main body (1) and fixed to the limiting structure (2); the limiting structure (2) is a flange formed by the main body (1) toward the cylindrical cavity; the limiting structure (2) is a boss arranged on the inner wall of the main body (1).
4. The sand-filled pipe anti-channeling treatment device according to claim 1, characterized in that: The wall thickness of one end of the body (1) provided with the radial groove (4) is greater than the wall thickness of the other opposite end, thereby forming the limiting structure (2).
5. The sand-filled pipe anti-channeling treatment device according to claim 1, characterized in that: The width of the movable door (5) is greater than the width of the axial opening (3).
6. The sand-filled pipe anti-channeling treatment device according to claim 1, characterized in that: The movable door (5) and the handle (6) are threadedly connected.
7. The sand-filled pipe anti-channeling treatment device according to claim 1, characterized in that: The side ears (7) are provided with through holes (8).