Vibration device for flow switch of logging-while-drilling instrument

Abstract

The utility model relates to a vibration device for a flow switch of a logging-while-drilling instrument, which comprises a shell and a vibration core, and the vibration core is arranged in the shell, can move up and down and is used for generating vibration. The device has the beneficial effects that the structure is simple, the design is reasonable, the underground vibration condition is simulated by providing continuous and stable vibration, and the stable and effective operation and the safety of an instrument during ground simulation test are ensured; meanwhile, manpower is replaced by a machine, the whole simulation test process can be completed by only one person instead of being completed by at least two persons originally, and manpower resources are greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum exploration, in particular to a flow switch vibration device for a logging while drilling instrument. Background Art

[0002] During the ground connection test of the logging while drilling instrument, the flow switch needs to be tapped to simulate the vibration state of the downhole instrument when the pump is turned on, so as to detect whether the instrument is working normally. However, there is currently no dedicated simulation device or tool to tap the flow switch. Objects such as hexagons, screwdrivers, and pebbles are often used to manually tap the flow switch continuously for 10-15 minutes, which is labor-intensive. At the same time, using inappropriate tools and manual tapping can easily cause damage to the instrument. Utility Model Content

[0003] The utility model provides a flow switch vibration device for a logging while drilling instrument, aiming to solve the problems in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A flow switch vibration device for a logging while drilling instrument comprises a shell and a vibration core. The vibration core is installed in the shell, can move up and down, and is used to generate vibration.

[0006] The beneficial effect of the utility model is that during use, the vibration core is used to generate vibration, and the vibration is transmitted to the sensor on the flow switch to simulate the vibration condition underground, so as to ensure the steady and effective progress of the instrument and the safety of the instrument during the ground simulation test.

[0007] The utility model has a simple structure and a reasonable design. It simulates the vibration conditions underground by providing continuous and stable vibrations, thereby ensuring the steady and effective progress of the instrument and the safety of the instrument during the ground simulation test. At the same time, by replacing manpower with a machine, the entire simulation test process can now be completed independently by only one person, which greatly saves human resources.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the vibration core includes a vibration motor and a cylinder, wherein the cylinder is vertically installed in the housing and can move up and down; and the vibration motor is installed on the cylinder.

[0010] The beneficial effect of adopting the above further scheme is that during use, the vibration motor is used to generate vibration and transmit it to the cylinder, and then the cylinder is used to transmit the vibration to the sensor on the flow switch to simulate the underground vibration conditions, ensuring the steady and effective progress of the instrument during the ground simulation test and the safety of the instrument.

[0011] Furthermore, the cylinder is a columnar structure with a thick middle portion and thin ends, and a horizontally penetrating channel is provided in the middle portion; the vibration motor is fixedly installed in the channel, and its two ends extend outside the channel respectively.

[0012] The beneficial effect of adopting the above further solution is that the structural design of the cylinder is reasonable, which is convenient for assembling the vibration motor and transmitting the vibration generated by the vibration motor to the cylinder.

[0013] Furthermore, a mounting hole is provided on the housing, a switch is installed at the mounting hole, and the switch is connected to the vibration motor through a circuit.

[0014] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, convenient installation of the switch by the designed mounting hole, convenient opening and closing of the vibration motor by the switch, easy operation, time saving and labor saving.

[0015] Furthermore, the vibration motor is a double-headed vibration motor.

[0016] The beneficial effect of adopting the above further solution is that the double-headed vibration motor has various vibration directions, which can meet different needs and is more convenient to use.

[0017] Furthermore, the top of the shell is open and a top cover is detachably installed thereon; a vertically distributed anti-rotation cylinder is fixedly connected to the inner wall of the top cover, the lower end of the anti-rotation cylinder is open, and a key slot is provided on its side wall running through it from top to bottom; the upper end of the cylinder extends into the anti-rotation cylinder and can move up and down, and an anti-rotation plate is fixedly connected thereto, and one side of the anti-rotation plate extends into the key slot.

[0018] The beneficial effect of adopting the above further scheme is that the top cover and the outer shell are detachably connected, which facilitates the disassembly and assembly of various components; in addition, when the cylinder moves up and down, the keyway on the anti-rotation cylinder cooperates with the anti-rotation plate on the cylinder to effectively prevent the cylinder from rotating during the up and down movement.

[0019] Furthermore, a spring is installed in the anti-rotation cylinder. The spring is sleeved outside the upper end of the cylinder, and its two ends are respectively abutted against the upper end of the anti-rotation cylinder and the middle part of the cylinder.

[0020] The beneficial effect of adopting the above further solution is that the spring design is reasonable, so that the cylinder can be firmly attached to the sensor of the instrument, so that the vibration is effectively transmitted to the sensor, and the simulation effect is better.

[0021] Furthermore, the bottom of the shell is bent upward to form a protrusion, and a through hole is provided on the protrusion, which penetrates inside and outside; the lower end of the cylinder passes through the through hole and extends to the outside of the shell.

[0022] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The raised design makes the bottom of the shell have an arc-shaped structure, so that it can fit the shell of the instrument well.

[0023] Furthermore, an annular step is provided at a position of the inner bottom wall of the shell corresponding to the edge of the through hole.

[0024] The beneficial effects of adopting the above further solution are simple structure, reasonable design of the annular step, and further increasing the stability of the upward and downward movement of the cylinder.

[0025] Furthermore, two handles are relatively fixedly mounted on the outer wall of the shell, and a strap is also included, with two ends of the strap respectively passing around the two handles to tie the shell to the instrument.

[0026] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The whole device can be stably tied to the instrument by using the strap and two handles to perform vibration simulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is one of the partial structural schematic diagrams of the utility model;

[0029] Figure 3 This is the second schematic diagram of the partial structure of the utility model;

[0030] Figure 4 It is a plan view of the utility model;

[0031] Figure 5 for Figure 4 Sectional view along AA direction;

[0032] Figure 6 This is a schematic diagram of the internal structure of the housing in the utility model;

[0033] Figure 7 It is a schematic diagram of the structure of the top cover in the utility model;

[0034] Figure 8 It is a schematic diagram of the structure of the cylinder in the utility model;

[0035] Fig. 9 It is a cross-sectional view of a cylinder in the utility model;

[0036] Fig.10 It is a schematic diagram of the structure when the utility model is applied.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1. Housing; 2. Vibration motor; 3. Cylinder; 4. Channel; 5. Switch; 6. Anti-rotation cylinder; 7. Keyway; 8. Anti-rotation sheet; 9. Spring; 10. Protrusion; 11. Through hole; 12. Annular step; 13. Handle; 14. Strap; 15. Instrument; 16. Top cover; 17. Mounting hole. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0040] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0043] Example 1

[0044] like Figures 1 to 10 As shown, this embodiment provides a flow switch vibration device for a logging while drilling instrument, comprising a housing 1 and a vibration core. The vibration core is installed in the housing 1, can move up and down, and is used to generate vibration.

[0045] During use, the vibration core is used to generate vibration and transmit it to the sensor on the flow switch to simulate the vibration conditions underground, ensuring the steady and effective progress of the instrument and the safety of the instrument during the ground simulation test.

[0046] Preferably, in this embodiment, the housing 1 is preferably a rectangular structure.

[0047] This embodiment has a simple structure and a reasonable design. It simulates the vibration conditions underground by providing continuous and stable vibrations, thereby ensuring the steady and effective progress of the instrument and the safety of the instrument during the ground simulation test. At the same time, by replacing manpower with machines, the entire simulation test process now only requires one person to independently operate and complete it, which greatly saves human resources.

[0048] Example 2

[0049] On the basis of Example 1, in this embodiment, the vibration core includes a vibration motor 2 and a cylinder 3 . The cylinder 3 is vertically installed in the housing 1 and can move up and down. The vibration motor 2 is installed on the cylinder 3 .

[0050] During use, the vibration motor 2 is used to generate vibration and transmit it to the cylinder 3, and then the cylinder 3 is used to transmit the vibration to the sensor on the flow switch to simulate the underground vibration condition, ensuring the steady and effective progress of the instrument 15 during the ground simulation test and the safety of the instrument 15.

[0051] Preferably, in this embodiment, the cylinder 3 is preferably a columnar structure.

[0052] Example 3

[0053] On the basis of Example 2, in this embodiment, the cylinder 3 is a columnar structure that is thick in the middle and thin at both ends, and a horizontal channel 4 is provided in the middle; the vibration motor 2 is fixedly installed in the channel 4, and its two ends extend outside the channel 4 respectively.

[0054] The structural design of the cylinder 3 is reasonable, which is convenient for assembling the vibration motor 2 and transmitting the vibration generated by the vibration motor 2 to the cylinder 3 .

[0055] Preferably, in this embodiment, the channel 4 is preferably a circular channel.

[0056] In addition, the center line of the channel 4 and the axis of the cylinder 3 are perpendicular to each other.

[0057] Moreover, the cross section of the middle portion of the cylinder 3 is rectangular, and the cross sections of both ends thereof are circular.

[0058] Example 4

[0059] On the basis of any one of Embodiments 2 to 3, in this embodiment, a mounting hole 17 is provided on the housing 1, a switch 5 is installed at the mounting hole 17, and the switch 5 is connected to the vibration motor 2 through a line.

[0060] The solution has a simple structure and a reasonable design. The mounting hole 17 is designed to facilitate the assembly of the switch 5. The switch 5 is used to conveniently start and close the vibration motor 2. The operation is simple, time-saving and labor-saving.

[0061] Based on the above solution, a threading hole for the circuit to pass through is also provided on the side wall of the above shell 1.

[0062] Preferably, in this embodiment, the above-mentioned mounting hole is preferably a circular hole.

[0063] It should be noted that the switch 5 mentioned above adopts the existing technology, and its specific structure and principle are not described in detail here.

[0064] Example 5

[0065] On the basis of any one of Embodiments 2 to 4, in this embodiment, the vibration motor 2 is a double-headed vibration motor.

[0066] The double-head vibration motor has various vibration directions, which can meet different needs and is more convenient to use.

[0067] It should be noted that the above-mentioned double-headed vibration motor adopts the existing technology, and its specific structure and principle will not be described in detail here.

[0068] Alternatively, the vibration motor 2 may also be a single-head vibration motor. In this case, the vibration effect of the motor is not as good as that of the double-head vibration motor.

[0069] Example 6

[0070] On the basis of any one of Examples 2 to 5, in this embodiment, the top of the outer shell 1 is open and a top cover 16 is detachably installed; a vertically distributed anti-rotation cylinder 6 is fixedly connected to the inner wall of the top cover 16, the lower end of the anti-rotation cylinder 6 is open, and a key groove 7 is provided on its side wall extending up and down; the upper end of the cylinder 3 extends into the anti-rotation cylinder 6 and can move up and down, and an anti-rotation plate 8 is fixedly connected thereto, and one side of the anti-rotation plate 8 extends into the key groove 7.

[0071] The top cover 16 is detachably connected to the outer shell, which is convenient for disassembly and assembly of various components; in addition, when the cylinder 3 moves up and down, the keyway 7 on the anti-rotation cylinder 6 cooperates with the anti-rotation sheet 8 on the cylinder 3 to effectively prevent the cylinder 3 from rotating during the up and down movement.

[0072] Preferably, in this embodiment, the top cover 16 is preferably a rectangular plate-shaped structure, and its four corners are detachably connected to the four corners of the top opening of the housing 1 by screws.

[0073] Preferably, in this embodiment, the anti-rotation cylinder 6 is preferably a cylindrical structure.

[0074] In addition, the key groove 7 extends along the axial direction of the anti-rotation cylinder 6 .

[0075] Moreover, the anti-rotation sheet 8 is in a sheet-like structure, which extends along the axial direction of the cylinder 3 and slides with the key slot 7 up and down.

[0076] Example 7

[0077] On the basis of Example 6, in this embodiment, a spring 9 is installed in the anti-rotation cylinder 6. The spring 9 is sleeved outside the upper end of the cylinder 3, and its two ends are respectively abutted against the upper end of the anti-rotation cylinder 6 and the middle of the cylinder 3.

[0078] The spring 9 is reasonably designed, so that the cylinder 3 can be firmly attached to the sensor of the instrument, so that the vibration is effectively transmitted to the sensor, and the simulation effect is better.

[0079] Preferably, in this embodiment, both ends of the spring 9 abut against the middle of the cylinder 3 and the upper end of the anti-rotation cylinder 6 respectively.

[0080] Example 8

[0081] Based on any one of Examples 2 to 7, in this embodiment, the bottom of the shell 1 is bent upward to form a protrusion 10, and the protrusion 10 is provided with a through hole 11 penetrating inside and outside; the lower end of the cylinder 3 passes through the through hole 11 and extends to the outside of the shell 1.

[0082] This solution has a simple structure and a reasonable design. The design of the protrusion 10 makes the bottom of the housing 1 have an arc-shaped structure, so that it can fit well with the housing of the instrument 15.

[0083] Preferably, in this embodiment, the protrusion 10 is preferably an arc-shaped protrusion, so that the bottom of the housing 1 forms an arc-shaped groove to better cooperate with the instrument.

[0084] Furthermore, the through hole 11 is preferably a circular hole.

[0085] Example 9

[0086] On the basis of Example 8, in this embodiment, an annular step 12 is provided at a position of the inner bottom wall of the housing 1 corresponding to the edge of the through hole 11 .

[0087] This solution has a simple structure, and the annular step 12 is reasonably designed, which can further increase the stability of the cylinder 3 moving up and down.

[0088] Example 10

[0089] On the basis of the above embodiments, in this embodiment, two handles 13 are relatively fixedly installed on the outer wall of the shell 1, and a strap 14 is also included. The two ends of the strap 14 are respectively wrapped around the two handles 13 to tie the shell 1 to the instrument 15.

[0090] This solution has a simple structure and a reasonable design. The entire device can be stably tied to the instrument 15 by using the strap 14 and the two handles 13 to perform vibration simulation.

[0091] Preferably, in this embodiment, the above-mentioned binding strap 14 is preferably a nylon strap, which has a long service life and low cost.

[0092] Preferably, in this embodiment, the two handles 13 are preferably U-shaped handles, and both sides of the open end of each U-shaped handle are fixedly connected to the housing 1 respectively.

[0093] Alternatively, the two handles 13 may also be in other suitable geometric shapes, such as a ring shape.

[0094] Based on the above solution, during assembly, the housing 1 is installed on the instrument so that the arc-shaped groove at the bottom of the housing 1 fits with the instrument, and then the strap 14 passes around the top of the housing 1 and through the two handles 13 and is tied to the instrument.

[0095] The working principle of the utility model is as follows:

[0096] During assembly, the housing 1 is mounted on the instrument so that the arc-shaped groove at the bottom of the housing 1 fits the instrument, and then the strap 14 passes around the top of the housing 1 and through the two handles 13 and is tied to the instrument;

[0097] When in use, the vibration motor 2 generates vibration, causing the cylinder 3 to move up and down in the housing 1, during which the cylinder 3 transmits the vibration to the instrument.

[0098] The utility model can effectively avoid the interruption of the logging while drilling instrument or the damage of the instrument during the ground simulation test, save manpower, reduce the preparation time of the logging while drilling instrument during the oil exploration process, improve the operation timeliness, and improve the work efficiency of the entire instrument preparation.

[0099] In order to achieve the above purpose, an electric vibration simulation device is designed to replace the manual knocking simulation. A double-headed vibration motor is used to provide stable power, and the power generated by the motor is converted into direct contact vibration and transmitted to the flow switch sensor through a mechanical structure.

[0100] Using 3D printing technology, we use nylon, which has high mechanical strength, good toughness, high precision and reasonable price, as the raw material to make the overall structure and shell.

[0101] It is tied with elastic nylon straps, which have high cost performance and simple structure, and can firmly fix the device on the instrument.

[0102] The utility model provides a reliable tool for the ground simulation test of the logging while drilling instrument. The utility model simulates the vibration situation downhole by providing continuous and stable vibration, thereby ensuring the steady and effective progress of the instrument and the safety of the instrument during the ground simulation test.

[0103] At the same time, by replacing manpower with machines, the entire simulation test process has changed from requiring at least two people to being completed independently by one person, which greatly saves human resources.

[0104] It should be noted that the motor and switch involved in the present invention all adopt the existing technology, and the above-mentioned components are electrically connected, and the control circuits between the components are the existing technology.

[0105] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0106] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0107] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow switch vibration device for a logging while drilling instrument, characterized in that: The invention comprises a housing (1) and a vibration core, wherein the vibration core is installed in the housing (1), can move up and down, and is used to generate vibration; the vibration core comprises a vibration motor (2) and a cylinder (3), wherein the cylinder (3) is vertically installed in the housing (1) and can move up and down; and the vibration motor (2) is installed on the cylinder (3).

2. The flow switch vibration device of the logging while drilling instrument according to claim 1, characterized in that: The cylinder (3) is in the form of a columnar structure that is thick in the middle and thin at both ends, and a horizontally penetrating channel (4) is provided in the middle; the vibration motor (2) is fixedly installed in the channel (4), and its two ends extend outside the channel (4) respectively.

3. The flow switch vibration device of the logging while drilling instrument according to claim 1, characterized in that: The housing (1) is provided with a mounting hole (17), a switch (5) is installed at the mounting hole (17), and the switch (5) is connected to the vibration motor (2) via a circuit.

4. The flow switch vibration device of the logging while drilling instrument according to claim 1, characterized in that: The vibration motor (2) is a double-head vibration motor.

5. The flow switch vibration device of a logging while drilling instrument according to any one of claims 1 to 4, characterized in that: The top of the housing (1) is open and a top cover (16) is detachably mounted thereon; a vertically distributed anti-rotation cylinder (6) is fixedly connected to the inner wall of the top cover (16); the lower end of the anti-rotation cylinder (6) is open and a keyway (7) is provided on its side wall extending vertically through the cylinder; the upper end of the cylinder (3) extends into the anti-rotation cylinder (6) and is movable up and down, and an anti-rotation sheet (8) is fixedly connected thereto, and one side of the anti-rotation sheet (8) extends into the keyway (7).

6. The flow switch vibration device of the logging while drilling instrument according to claim 5, characterized in that: A spring (9) is installed in the anti-rotation cylinder (6). The spring (9) is sleeved outside the upper end of the cylinder (3), and its two ends are respectively in contact with the upper end of the anti-rotation cylinder (6) and the middle of the cylinder (3).

7. The flow switch vibration device of a logging while drilling instrument according to any one of claims 1 to 4, characterized in that: The bottom of the shell (1) is bent upward to form a protrusion (10), and a through hole (11) is provided on the protrusion (10) that penetrates inside and outside; the lower end of the cylinder (3) passes through the through hole (11) and extends to the outside of the shell (1).

8. The flow switch vibration device of the logging while drilling instrument according to claim 7, characterized in that: An annular step (12) is provided at a position of the inner bottom wall of the housing (1) corresponding to the edge of the through hole (11).

9. The flow switch vibration device of a logging while drilling instrument according to any one of claims 1 to 4, characterized in that: Two handles (13) are relatively fixedly mounted on the outer wall of the housing (1), and a strap (14) is also included. The two ends of the strap (14) are respectively wrapped around the two handles (13) and are used to tie the housing (1) to the instrument (15).

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