Deep well layered packer detection device

Abstract

The utility model discloses a deep well layered packer detection device, and particularly relates to the technical field of packer detection, the deep well layered packer detection device comprises a shell, two first fixing frames are fixedly connected in the shell, and a sealing detection mechanism is movably connected in the two first fixing frames; the sealing detection mechanism comprises an outer cylinder, the outer side of the outer cylinder is fixedly connected with the inner walls of two fixing frames, an inner cylinder is fixedly connected into the outer cylinder, a heating pipe is installed on the inner wall of the outer cylinder, a protective sleeve is fixedly connected to the bottom of the outer cylinder, a sealing groove is formed in the bottom of the inner cylinder, and a temperature sensor is installed on one side of the inner cylinder. The bottom of the fixing rod is fixedly connected with a counterweight cover, and the bottom of the counterweight cover is fixedly connected with a sealing washer. By arranging the sealing detection mechanism, after the packer enters the detection device, the two ends of the detection device can be rapidly opened and closed through the sealing gasket and the sealing end disc, the temperature and the air pressure in the inner cylinder can be conveniently adjusted subsequently, and the detection of the packer is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of packer detection, and more specifically to a deep well stratified packer detection device. Background Art

[0002] A packer is a downhole tool that separates different oil and gas layers and water layers in the wellbore and withstands a certain pressure difference. It can not only meet the requirements of oil and gas production technology, but also play the role of isolating the annular space of the casing to protect the casing. However, in the completion process, there are cases where the packer fails to seal after entering the well, resulting in the inability to meet production testing requirements, while also increasing construction time and costs.

[0003] Existing detection devices can only perform pressure tests at room temperature; some detection devices can only perform temperature resistance tests at normal pressure; in addition, although there are simulated experimental wells that test the packer under certain temperature and pressure conditions at the same time, that is, a simulated well of a certain depth is built on the ground according to the actual wellbore size, and the full-size packer is lowered into the simulated wellbore, and related equipment is used to complete the sealing and testing actions, and finally the sealing performance evaluation results are made, but this type of system has the following disadvantages: not only is the device large in size, the operating energy consumption is high, the operation is inconvenient, and the types of detectable rubber cartridges are small.

[0004] After searching, the Chinese patent application number CN201420618434.3 discloses a device for detecting the sealing performance of a packer rubber cartridge. The utility model can simulate downhole temperature and pressure conditions, as well as the working state of the packer rubber cartridge, and detect the sealing performance of the rubber cartridge.

[0005] However, when the above detection device is actually used, when detecting the packer, the air pressure at the bottom of the detection device may be relatively high, which may cause certain difficulties in removing the packer, and may affect the efficiency of the packer detection. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a deep well stratified packer detection device to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A deep well stratified packer detection device comprises an outer shell, wherein two fixing frames are fixedly connected inside the outer shell, and a sealing detection mechanism is movably connected inside the two fixing frames; the sealing detection mechanism comprises an outer cylinder, the outer side of the outer cylinder is fixedly connected to the inner walls of the two fixing frames, and the two fixing frames are symmetrically arranged inside the outer shell, an inner cylinder is fixedly connected inside the outer cylinder, a heating tube is installed on the inner wall of the outer cylinder, a protective sleeve is fixedly connected to the bottom of the outer cylinder, a sealing groove is provided at the bottom of the inner cylinder, a temperature sensor is installed on one side of the inner cylinder, a fixing rod is movably connected to the upper surface of the outer shell, a counterweight cover is fixedly connected to the bottom of the fixing rod, a sealing gasket is fixedly connected to the bottom of the counterweight cover, the outer side of the sealing gasket is clamped with the inner wall of the inner cylinder, a clamping seat is provided at one end of the sealing gasket, a plug rod is movably connected inside the clamping seat, and a clamping strip is movably connected to the front end of the plug rod.

[0009] By adopting the above technical solution, the sealing gasket can be closely fitted with the inner tube, so that the top of the inner tube maintains good air tightness, and the counterweight cover can be quickly opened by rotating the fixing rod.

[0010] As a further description of the above technical solution:

[0011] A hydraulic rod is installed inside the shell, and a second fixing frame is fixedly connected to the top of the hydraulic rod. A sealing end plate is fixedly connected to the top of the second fixing frame. A pressurizing machine is installed on one side of the shell, and the pressurizing machine is arranged on one side of the two fixing frames. A heater is installed on the other side of the shell, and the heater is arranged on the other side of the two fixing frames.

[0012] By adopting the above technical solution: the hydraulic rod drives the sealing end plate to overlap with the bottom end of the inner tube to maintain the sealing of the bottom end of the inner tube, and the high temperature and high pressure environment inside the inner tube is simulated by the pressurizer and the heater.

[0013] As a further description of the above technical solution:

[0014] A fixing ring is movably connected to the top of the shell, a fan is fixedly connected inside the fixing ring, a protective plate is fixedly connected to the bottom of the fixing ring, and a handle is fixedly connected to one side of the fixing ring.

[0015] By adopting the above technical solution, the fan discharges the heat inside the inner cylinder to the outside, thereby effectively reducing the temperature inside the inner cylinder.

[0016] Technical effects and advantages of the utility model:

[0017] 1. By setting up a sealing detection mechanism, compared with the prior art, after the packer enters the detection device, the two ends of the detection device can be quickly opened and closed through the sealing gasket and the sealing end plate, which is convenient for the subsequent rapid adjustment of the temperature and air pressure inside the inner tube, making the detection of the packer more accurate;

[0018] 2. By providing a fixing ring, a fan, a protective plate and a handle, compared with the prior art, the interior of the inner tube can be ventilated, so that the temperature inside the inner tube can be reduced, which is convenient for subsequent detection of packers with different temperature requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a partial schematic diagram of the sealing end connection of the utility model.

[0021] Figure 3 It is a schematic diagram of the front structure of the shell of the present utility model.

[0022] Figure 4 It is a partial schematic diagram of the fixing ring connection of the utility model.

[0023] Figure 5 It is a partial schematic diagram of the outer cylinder connection of the utility model.

[0024] Figure 6 It is a partial schematic diagram of the connection of the counterweight cover of the utility model.

[0025] Figure 7 It is a partial schematic diagram of the connection part of the card holder of the utility model.

[0026] The accompanying drawings are marked as follows: 1. outer shell; 2. fixing frame 1; 3. outer cylinder; 4. inner cylinder; 5. heating tube; 6. protective cover; 7. sealing groove; 8. temperature sensor; 9. fixing rod; 10. counterweight cover; 11. sealing gasket; 12. holder; 13. insertion rod; 14. clamping strip; 15. hydraulic rod; 16. fixing frame 2; 17. sealing end plate; 18. pressurizer; 19. heater; 20. fixing ring; 21. fan; 22. protective plate; 23. handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The embodiment of the present application discloses a deep well stratified packer detection device, specifically comprising an outer shell 1, wherein two fixing frames 2 are fixedly connected inside the outer shell 1, and the two fixing frames 2 are symmetrically arranged inside the outer shell 1, and a sealing detection mechanism is movably connected inside the two fixing frames 2; the sealing detection mechanism comprises an outer tube 3, wherein the outer side of the outer tube 3 is fixedly connected to the inner walls of the two fixing frames 2, the inner side of the outer tube 3 is fixedly connected to an inner tube 4, a heating pipe 5 is installed on the inner wall of the outer tube 3, a protective sleeve 6 is fixedly connected to the bottom of the outer tube 3, a sealing groove 7 is provided at the bottom of the inner tube 4, and a temperature sensor is installed on one side of the inner tube 4. Sensor 8, a fixing rod 9 is movably connected to the upper surface of the outer shell 1, a counterweight cover 10 is fixedly connected to the bottom of the fixing rod 9, a sealing gasket 11 is fixedly connected to the bottom of the counterweight cover 10, the outer side of the sealing gasket 11 is clamped with the inner wall of the inner tube 4, and a clamping seat 12 is provided at one end of the sealing gasket 11. Before the inner tube 4 is heated, the top of the inner tube 4 can be effectively sealed, and the temperature and air pressure inside the inner tube 4 can be accurately detected, so that the packer can simulate the temperature and air pressure of different usage scenarios inside the inner tube 4, making the detection of the packer more accurate.

[0029] Reference Figure 7 As shown, specifically, the inside of the holder 12 is movably connected with an insertion rod 13, and the front end of the insertion rod 13 is movably connected with a clamping strip 14, so as to quickly fix the fixing rod 9 to avoid loosening.

[0030] Reference Figure 2 As shown, specifically, a hydraulic rod 15 is installed inside the outer shell 1, and a second fixing frame 16 is fixedly connected to the top of the hydraulic rod 15, and a sealing end plate 17 is fixedly connected to the top of the second fixing frame 16 to quickly and stably seal the bottom of the inner tube 4.

[0031] Reference Figure 2 As shown, specifically, a pressurizer 18 is installed on one side of the shell 1, and a heater 19 is installed on the other side of the shell 1 to pressurize and heat the interior of the inner tube 4 so that the environment inside the inner tube 4 is more suitable for the use scenario of the packer.

[0032] Reference Figure 4 As shown, specifically, a fixing ring 20 is movably connected to the top of the outer shell 1, a fan 21 is fixedly connected inside the fixing ring 20, a protective plate 22 is fixedly connected to the bottom of the fixing ring 20, and a handle 23 is fixedly connected to one side of the fixing ring 20, so that the interior of the inner tube 4 is effectively ventilated and the temperature can be effectively reduced.

[0033] Working principle of the utility model: when testing the packer, first put the packer into the inner tube 4, then the hydraulic rod 15 drives the sealing end plate 17 to move upward through the fixing frame 16, so that the sealing end plate 17 can be inserted into the inside of the protective sleeve 6, and the groove at the top of the sealing end plate 17 is clamped with the sealing groove 7 at the bottom of the inner tube 4, so that the bottom of the inner tube 4 and the sealing end plate 17 can be stably sealed, and then the counterweight cover 10 on the top of the outer shell 1 is rotated through the movable seat connected to the fixing rod 9, so that the counterweight cover 10 is guided by the fixing rod 9, so that the sealing gasket 11 can be tightly fitted with the inside of the inner tube 4, and when the other end of the fixing rod 9 enters the inside of the clamping seat 12, the insertion rod 13 is inserted into the inside of the clamping seat 12, and the insertion rod 13 can be firmly connected with the clamping seat 12 through the clamping strip 14. The connection is maintained so that the fixing rod 9 and the counterweight cover 10 are fixed to reduce the possibility of air leakage. Then, the inner tube 4 is heated on the inner wall of the outer tube 3 by the heater 19 and the heating tube 5, so that the interior of the inner tube 4 is at a suitable temperature. At the same time, the interior of the inner tube 4 is pressurized by the pressurizing tube on one side of the pressurizer 18, so that the interior of the inner tube 4 can reach a suitable temperature and pressure. The performance of the seal is tested by the air pressure detection probe on one side of the pressurizer 18. After the inspection of the lower seal is completed, the counterweight cover 10 is opened, and the fixing ring 20 and the handle 23 are rotated to the top of the inner tube 4. The internal heat of the inner tube 4 is discharged through the bottom of the inner tube 4 by the fan 21, so that the temperature inside the inner tube 4 can be effectively reduced, which is convenient for accurate detection of subsequent seals with different temperature requirements.

[0034] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A deep well stratified packer detection device, comprising a housing (1), characterized in that: The housing (1) is internally fixedly connected to two fixing frames (2), and the two fixing frames (2) are internally movably connected to a sealing detection mechanism; The sealing detection mechanism comprises an outer cylinder (3), the outer side of the outer cylinder (3) is fixedly connected to the inner wall of two fixing frames (2), the inner side of the outer cylinder (3) is fixedly connected to the inner side of the inner cylinder (4), the inner wall of the outer cylinder (3) is installed with a heating tube (5), the bottom of the outer cylinder (3) is fixedly connected to a protective sleeve (6), the bottom of the inner cylinder (4) is provided with a sealing groove (7), one side of the inner cylinder (4) is installed with a temperature sensor (8), the upper surface of the outer shell (1) is movably connected to a fixing rod (9), the bottom of the fixing rod (9) is fixedly connected to a counterweight cover (10), the bottom of the counterweight cover (10) is fixedly connected to a sealing gasket (11), and one end of the sealing gasket (11) is provided with a clamping seat (12).

2. The deep well stratified packer detection device according to claim 1, characterized in that: The interior of the clamping seat (12) is movably connected to an insertion rod (13), and the front end of the insertion rod (13) is movably connected to a clamping strip (14).

3. The deep well stratified packer detection device according to claim 1, characterized in that: A hydraulic rod (15) is installed inside the housing (1), the top of the hydraulic rod (15) is fixedly connected to a second fixing frame (16), and the top of the second fixing frame (16) is fixedly connected to a sealing end plate (17).

4. The deep well stratified packer detection device according to claim 1, characterized in that: A pressurizing machine (18) is installed on one side of the interior of the shell (1), and a heater (19) is installed on the other side of the interior of the shell (1).

5. The deep well stratified packer detection device according to claim 1, characterized in that: A fixing ring (20) is movably connected to the top of the housing (1), and a fan (21) is fixedly connected inside the fixing ring (20).

6. The deep well stratified packer detection device according to claim 5, characterized in that: A protective plate (22) is fixedly connected to the bottom of the fixing ring (20), and a handle (23) is fixedly connected to one side of the fixing ring (20).

7. The deep well stratified packer detection device according to claim 1, characterized in that: The outer side of the sealing gasket (11) is clamped with the inner wall of the inner tube (4), and the two fixing frames (2) are symmetrically arranged inside the outer shell (1).

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