Petroleum perforating bullet shell drawing test device

Abstract

The utility model discloses a drawing test device for a petroleum perforating charge shell, and particularly relates to the technical field of perforating charge shell testing, which comprises a perforating charge shell test board, a pair of guide posts are fixedly connected on the perforating charge shell test board, an abutting disc is fixedly connected on the pair of guide posts, a penetrating groove for a pressing wire on the perforating charge shell to penetrate through is arranged on the abutting disc, and the pressing wire on the perforating charge shell can penetrate through the penetrating groove. A tray used for supporting the perforating charge shell is movably connected to the pair of guide columns, and a first lifting assembly is arranged on the tray and the perforating charge shell test board; a support is fixedly connected to the perforating charge shell test bench, an angle disc is rotationally connected to the support, a second lifting assembly is arranged on the angle disc, and a digital display type tension meter is arranged on the second lifting assembly; according to the utility model, the technical problems of how to optimize the fixing step of the perforating bullet shell and realize the stable drawing of the perforating bullet shell pressing wire, and the test data of the perforating bullet shell pressing wire is not comprehensive enough are solved.

Description

Technical Field

[0001] This utility model relates to the field of perforation projectile casing testing technology, and more specifically, to a pull-out testing device for oil perforation projectile casings. Background Technology

[0002] Perforating projectiles are important devices for new well development and reaming of existing wells. In current mining and other engineering exploration and construction processes, perforating projectiles are pyrotechnic devices used to penetrate casing, cement sheaths, and formations during perforation. Their technical performance directly affects the specific parameters of perforation, such as borehole diameter and depth. After production, existing perforating projectile casings require wire pull-out force testing. The wire pull-out force of the perforating projectile casing is a parameter characterizing the reliability of the connection between the wire and the perforating projectile casing. Currently, the wire pull-out force testing of perforating projectile casings is mainly achieved using methods such as the counterweight method and tensile testing machines.

[0003] For example, utility model patent publication number CN215525321U discloses a device for testing the pull-out force of a perforated bullet casing. The device includes a test platform, a first threaded rod rotatably connected to one side of the inner wall of the top of the test platform, a handle fixedly connected to the top surface of the first threaded rod, and a threaded sleeve movably fitted onto the outer circumferential surface of the first threaded rod. A spring tension tester is provided at one end of the test platform, with its surface near the first threaded rod fixedly connected to the surface of the threaded sleeve. A fixing rod is fixedly connected to the other side of the inner wall of the top of the first threaded rod, and a limiting sleeve movably fitted onto the outer circumferential surface of the fixing rod. The surface of the limiting sleeve near the spring tension tester is fixedly connected to the surface of the spring tension tester. This utility model can reduce the labor intensity of testing personnel and visually display the pull-out force value through the spring tension tester, thereby improving the accuracy of the experiment.

[0004] In the aforementioned patent, the inventor believes that although the patent reduces the labor intensity of pulling the perforated bullet casing wire, the position of the perforated bullet casing needs to be fixed first during the perforated bullet casing test. Therefore, how to optimize the fixing steps of the perforated bullet casing while achieving stable pulling of the perforated bullet casing wire is a technical problem that needs to be solved. In addition, the pulling test of the perforated bullet casing wire is in a single vertical direction, which makes the test data not comprehensive enough.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the problems of optimizing the fixing steps of the perforated projectile casing while achieving stable pulling of the perforated projectile casing wire and insufficient test data of the perforated projectile casing wire.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a perforation shell pull-out testing device for oil wells, comprising a perforation shell testing platform, a pair of guide posts fixedly connected to the perforation shell testing platform, a backing plate fixedly connected to the pair of guide posts, a through groove for the pressure wire on the perforation shell to pass through on the backing plate, a tray for supporting the perforation shell movably connected to the pair of guide posts, and a lifting assembly provided on the tray and the perforation shell testing platform;

[0008] A bracket is fixedly connected to the perforation projectile casing test stand. An angle plate is rotatably connected to the bracket. A second lifting component is installed on the angle plate. A digital display tension gauge is installed on the second lifting component. The detection end of the digital display tension gauge is equipped with a double-ear hook that is connected to the pressure wire hook on the perforation projectile casing.

[0009] In a preferred embodiment, the lifting assembly includes a threaded cylinder rotatably connected to the upper surface of the perforated projectile casing test stand, and a threaded rod is threadedly connected inside the threaded cylinder, with one end of the threaded rod fixedly connected to the bottom of the tray.

[0010] In a preferred embodiment, the tray is slidably connected to a pair of guide posts, and the tray is located directly below the abutment.

[0011] In a preferred embodiment, a self-locking motor is fixedly connected to the bracket, and the output end of the self-locking motor passes through the bracket and is coaxially fixed to the center position of the corner plate.

[0012] In a preferred embodiment, the second lifting assembly includes a guide box, which is fixedly connected to the end face of the angular plate. A precision lead screw is rotatably connected inside the guide box, and a slide is threaded onto the precision lead screw. A handwheel is fixedly connected to one end of the precision lead screw. A groove for sliding of the slide is provided on the guide box, and the precision lead screw is disposed in the groove. The digital force gauge is fixedly connected to the slide.

[0013] In a preferred embodiment, the double-ear hooks are hinged to the detection end of the digital tension gauge.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This oil perforation projectile casing pull-out testing device, by setting a support plate and a tray, provides test support for the perforation projectile casing, while the support plate provides a limit for the end of the perforation projectile casing away from the tray. With the groove set on the support plate, the pressure wire on the perforation projectile casing is led out. In this way, the detection end of the digital display tension gauge can be hooked with the pressure wire to directly perform the pull-out test. Therefore, the pull-out test can be performed quickly without fixing the perforation projectile casing first, which can improve the testing efficiency. In addition, since the height of the tray can be adjusted by the lifting component, the tray can be adapted to perforation projectile casings of different lengths for pressure wire pull-out testing.

[0016] 2. This oil perforation projectile casing pull-out test device, by setting an angle plate, can drive a liftable digital display force gauge to rotate at an angle, so as to change the angular position of the digital display force gauge near the pressure wire of the perforation projectile casing. In this way, pull-out tests can be performed on the pressure wire at different angles to ensure the comprehensiveness of the pull-out test data. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a first-view structural schematic diagram of a pull-out testing device for an oil perforation projectile casing according to the present invention;

[0019] Figure 2 This is a second-view structural schematic diagram of an oil perforation projectile casing pull-out testing device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the pallet and tray of this utility model;

[0021] Figure 4 This is a schematic diagram of the lifting component 2 and the digital force gauge of this utility model.

[0022] The attached diagram is labeled as follows: 1. Perforated projectile casing test stand; 2. Guide post; 3. Support plate; 4. Through slot; 5. Tray; 6. Lifting assembly one; 61. Threaded cylinder; 62. Threaded rod; 7. Bracket; 8. Angle plate; 9. Lifting assembly two; 91. Guide box; 92. Precision lead screw; 93. Slide; 94. Handwheel; 10. Digital display tension gauge; 11. Double-ear hook; 12. Self-locking motor. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See also Figures 1-4 This utility model provides a pull-out test device for oil perforation projectile casings, including a perforation projectile casing test stand 1.

[0025] In this embodiment: A pair of guide posts 2 are fixedly connected to the perforated projectile casing test stand 1, and a backing plate 3 is fixedly connected to the pair of guide posts 2. The backing plate 3 has a through groove 4 for the pressure wire on the perforated projectile casing to pass through.

[0026] The suspended design of the abutment plate 3 provides an abutment surface for one end of the perforation shell, allowing for direct abutment and limiting during the wire pull-out test of the perforation shell. By reducing the fixing steps of the perforation shell, the test progress can be improved. The slot 4 facilitates the lead-out of the wire on the perforation shell. In the prior art, the wire is mostly used in the form of a U-shaped hook. By leading the wire to the top of the abutment plate 3, it can be easily connected to the force measuring equipment.

[0027] It is worth noting that, since the oil perforation shell pull-out test device in this application can meet the multi-directional pull-out test of the perforation shell pressure wire, when the force measuring device pulls the hooked pressure wire at angles other than the longitudinal direction, the abutment 3 does not completely provide a limiting abutment for one end of the perforation shell, and the periphery of the groove 4 can meet the test limiting requirements by restricting the movement of the pressure wire.

[0028] In this embodiment: a tray 5 for supporting the shell of the perforated projectile is movably connected to a pair of guide posts 2. The tray 5 is slidably connected to the pair of guide posts 2 and is located directly below the abutment plate 3.

[0029] The tray 5 provides bottom support for testing the perforated projectile casing, and the tray 5 slides on the guide post 2 to allow for vertical height adjustment.

[0030] In this embodiment: a lifting assembly 6 is provided on the tray 5 and the perforated shell test stand 1. The lifting assembly 6 includes a threaded cylinder 61, which is rotatably connected to the upper surface of the perforated shell test stand 1. A threaded rod 62 is threadedly connected to the inside of the threaded cylinder 61, and one end of the threaded rod 62 is fixedly connected to the bottom of the tray 5.

[0031] By rotating the threaded cylinder 61, the guide post 2 moves along the limited guide tray 5. The threaded cylinder 61 and the threaded rod 62 can control the tray 5 to rise and fall in height, thus meeting the support requirements of perforated shells of different heights.

[0032] When the perforated shell is placed between the support plate 3 and the tray 5, in order to facilitate rapid perforation of the shell, the height of the tray 5 is adjusted so that the distance between the support plate 3 and the tray 5 is slightly greater than the length of the support plate 3 and the tray 5. That is, after the perforated shell is placed on the tray 5, a certain gap is reserved between one end of the perforated shell and the support plate 3.

[0033] In this embodiment: a bracket 7 is fixedly connected to the perforation shell test stand 1, an angle plate 8 is rotatably connected to the bracket 7, a self-locking motor 12 is fixedly connected to the bracket 7, and the output end of the self-locking motor 12 passes through the bracket 7 and is coaxially fixed to the center position of the angle plate 8.

[0034] The self-locking motor 12 can drive the corner plate 8 to rotate at an angle, and the rotation satisfies the self-locking capability, thus stabilizing the position of the structure on the corner plate 8.

[0035] In this embodiment: a lifting assembly 2 9 is provided on the corner plate 8. The lifting assembly 2 9 includes a guide box 91. The guide box 91 is fixedly connected to the end face of the corner plate 8. A precision lead screw 92 is rotatably connected inside the guide box 91. A slide block 93 is threadedly connected to the precision lead screw 92. A handwheel 94 is fixedly connected to one end of the precision lead screw 92. A slide groove for sliding the slide block 93 is opened on the guide box 91. The precision lead screw 92 is disposed in the slide groove.

[0036] The user controls the rotation of the handwheel 94 at the position of the handwheel 94. The slide groove limits the movement trajectory of the slide block 93, and the slide block 93 is threadedly connected to the precision lead screw 92 to perform lifting and lowering actions.

[0037] In this embodiment: a digital display tension gauge 10 is provided on the lifting component 2 9, and the digital display tension gauge 10 is fixedly connected to the slide 93.

[0038] Because the slide 93 can give the digital display tension gauge 10 the ability to lift, when the perforation shell is placed on the tray 5 and the pressure wire on the perforation shell passes through the groove 4, the detection end of the digital display tension gauge 10 can be connected to the pressure wire, and the perforation shell pressure wire can be pulled out by moving the digital display tension gauge 10.

[0039] In this embodiment: the detection end of the digital display tension gauge 10 is provided with a double-ear hook 11 that is connected to the pressure wire on the casing of the perforated bullet. The double-ear hook 11 is hinged to the detection end of the digital display tension gauge 10.

[0040] The hinged double-ear hook 11 allows for angle adjustment, making it easy and quick to hook with the pressure wire. The advantage of the double-hook design of the double-ear hook 11 is that, when adjusting the angle of the digital tension gauge 10 to conduct pull tests on the pressure wire at multiple angles, the double-ear hook 11 has bidirectional hooking capability compared to a single hook, thus adapting to the needs of hooking orientation.

Claims

1. A petroleum perforating charge case pull test apparatus comprising a perforating charge case test stand (1) characterised in that: A pair of guide posts (2) are fixedly connected to the perforated projectile casing test stand (1), and a support plate (3) is fixedly connected to the pair of guide posts (2). The support plate (3) has a through groove (4) for the pressure wire on the perforated projectile casing to pass through. A tray (5) for supporting the perforated projectile casing is movably connected to the pair of guide posts (2). A lifting assembly (6) is provided on the tray (5) and the perforated projectile casing test stand (1). A bracket (7) is fixedly connected to the perforated projectile casing test stand (1). An angle plate (8) is rotatably connected to the bracket (7). A lifting assembly (9) is provided on the angle plate (8). A digital display tension gauge (10) is provided on the lifting assembly (9). The detection end of the digital display tension gauge (10) is provided with a double-ear hook (11) that is connected to the pressure wire hook on the perforated projectile casing.

2. A device for pull testing a casing of a petroleum perforating charge according to claim 1, wherein: The lifting assembly (6) includes a threaded cylinder (61), which is rotatably connected to the upper surface of the perforated shell test stand (1). A threaded rod (62) is threadedly connected inside the threaded cylinder (61), and one end of the threaded rod (62) is fixedly connected to the bottom of the tray (5).

3. A device for pull testing a casing of a petroleum perforating charge according to claim 1, wherein: The tray (5) is slidably connected to a pair of guide posts (2), and the tray (5) is located directly below the abutment (3).

4. The oil perforation projectile casing pull-out test device according to claim 1, characterized in that: A self-locking motor (12) is fixedly connected to the bracket (7). The output end of the self-locking motor (12) passes through the bracket (7) and is coaxially fixed to the center of the corner plate (8).

5. The device of claim 1, wherein: The second lifting assembly (9) includes a guide box (91), which is fixedly connected to the end face of the corner plate (8). A precision lead screw (92) is rotatably connected inside the guide box (91). A slide block (93) is threaded onto the precision lead screw (92). A handwheel (94) is fixedly connected to one end of the precision lead screw (92). A groove for sliding the slide block (93) is provided on the guide box (91). The precision lead screw (92) is set in the groove. The digital display tension gauge (10) is fixedly connected to the slide block (93).

6. A petroleum perforating charge case pull test apparatus as defined in claim 1, wherein: The double-ear hook (11) is hinged to the detection end of the digital display tension gauge (10).

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