Well tripping protection equipment for salt cavern sonar cavity measuring instrument

Abstract

The invention relates to the technical field of salt cavern gas storage construction engineering testing, and discloses a salt cavern sonar cavity tester well tripping protection device. The salt cavern sonar cavity measuring instrument tripping protection equipment comprises a sleeve, a through hole for a cable of a sonar cavity measuring instrument to penetrate through is formed in the sleeve, an elastic piece is arranged on the inner wall of the end, away from the sonar cavity measuring instrument, of the sleeve, and a rolling component is arranged on the periphery of the sleeve. In the protection equipment provided by the invention, the sleeve can sleeve the periphery of the top of the sonar cavity measuring instrument to play a role in protecting the sonar cavity measuring instrument, and the contact area and the friction force between the sonar cavity measuring instrument and the pipe wall or the cavity wall in the well can be reduced through rolling of the rolling component on the pipe wall or the cavity wall in the well in the process of lifting and descending the sonar cavity measuring instrument, so that the reliability of the sonar cavity measuring instrument is improved. The phenomenon that hard jamming occurs when the sonar cavity tester penetrates through a complex pipeline and passes through the end of a sleeve shoe is effectively avoided, the cable is in direct contact with the end of the sleeve shoe, and the risk that the sonar cavity tester is damaged or falls into the cavity due to the fact that the steel wire cable is snapped is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of salt cavern gas storage construction engineering testing, and in particular to a salt cavern sonar cavity measuring instrument tripping and lowering protection equipment. Background Art

[0002] Salt cavern gas storage is one of the main types of underground gas storage. Due to years of mining, a large number of dissolution cavities have been formed deep underground. my country is conducting research and application on the use of old salt caverns to build underground gas, oil and energy storage, which can improve the efficiency of storage and save construction costs. For the construction of new caverns and the use of old caverns and the operation of reservoirs, sonar cavity measurement is one of the necessary key processes, but sonar cavity measurement equipment is relatively expensive. During the detection process, it is necessary to ensure the safe use of the test instrument to avoid damage to the test instrument. For some old cavities and old wells, due to the complex well conditions such as large well inclination and casing changes, the test instrument is easily damaged during the detection process, and when the test instrument enters and exits the special position of the pipe end and the top of the salt cavity, there is even a risk of cable breakage causing the test instrument to fall into the salt cavity, causing significant economic losses.

[0003] Invention of the inner cylinder

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the present invention provides a salt cavern sonar cavity detector tripping and well protection device.

[0005] The present invention provides a salt cavern sonar cavity measuring instrument lifting and lowering protection equipment, comprising a sleeve for being sleeved on the outer periphery of the top of the sonar cavity measuring instrument, the interior of the sleeve is provided with a through hole for the cable of the sonar cavity measuring instrument to pass through, an elastic member for the cable to pass through is provided on the inner wall of the sleeve away from the end of the sonar cavity measuring instrument, a rolling member is provided on the outer periphery of the sleeve, and the rolling member extends out of the outer wall of the sleeve so as to be able to roll on the pipe wall or cavity wall in the well.

[0006] Optionally, the rolling component includes a plurality of groups of rolling elements, the plurality of groups of rolling elements are arranged at intervals along the circumferential direction of the sleeve, and each group of rolling elements includes a plurality of rolling element bodies arranged at intervals along the axial direction of the sleeve.

[0007] Optionally, the rolling element body includes a ball rotatably arranged on the outer wall of the sleeve.

[0008] Optionally, a mounting hole for mounting the ball is provided on the side wall of the sleeve, the ball is rotatably disposed in the mounting hole, and a portion of the ball extends out of the mounting hole.

[0009] Optionally, the sleeve includes an inner cylinder and an outer cylinder which are sleeved together, the mounting hole includes a receiving hole arranged on the outer wall of the inner cylinder and an opening arranged on the side wall of the outer cylinder, the ball is rotatably arranged in the receiving hole, and part of the ball extends out of the opening.

[0010] Optionally, the elastic member comprises an elastic rubber ring arranged on the inner wall of the sleeve at one end away from the sonar cavity measuring instrument.

[0011] Optionally, an annular groove is provided on the inner wall of the sleeve, the elastic rubber ring is arranged in the annular groove, and a part of the elastic rubber ring extends out of the annular groove.

[0012] Optionally, the elastic rubber ring is interference fit with the cable.

[0013] Optionally, both ends of the sleeve are respectively provided with slope surfaces.

[0014] Optionally, the outer diameter of the sleeve gradually decreases in a direction away from the sonar cavity measuring instrument.

[0015] The technical solution provided by the embodiment of the present invention has the following advantages compared with the prior art:

[0016] In the protection device provided by the present invention, the sleeve can be sleeved on the top periphery of the sonar cavity meter to protect the sonar cavity meter. During the process of raising and lowering the sonar cavity meter, the rolling component can roll on the pipe wall or cavity wall in the well to reduce the contact area between the sonar cavity meter and the pipe wall or cavity wall in the well, and the rolling friction method can reduce the friction force, effectively avoiding the phenomenon of hard jamming of the sonar cavity meter when passing through complex pipelines and passing through the end of the casing shoe. The cable of the sonar cavity meter passes through the sleeve to avoid direct contact between the cable and the end of the casing shoe, and the cable is in flexibly in contact with the elastic member, reducing the risk of damage to the sonar cavity meter or falling into the cavity due to breaking of the steel cable, thereby improving the construction success rate and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] In order to more clearly illustrate the implementation mode of the present invention or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the salt cave sonar cavity measuring instrument tripping and well protection equipment according to the embodiment of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the arrangement of multiple groups of rolling elements according to an embodiment of the present invention.

[0021] Description of Reference Numerals

[0022] 1. Sleeve; 11. Inner cylinder; 12. Outer cylinder; 2. Elastic member; 21. Elastic rubber ring; 3. Rolling member; 31. Ball. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0024] The following description sets forth many specific details to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the implementation methods in the specification are only part of the implementation methods of the present invention, rather than all of the implementation methods.

[0025] like Figure 1As shown, the salt cavern sonar cavity measuring instrument tripping and lowering protection equipment provided by the embodiment of the present invention includes a sleeve 1 for being sleeved on the outer periphery of the top of the sonar cavity measuring instrument, wherein the manner in which the sleeve 1 is sleeved on the outer periphery of the top of the sonar cavity measuring instrument is not restricted, and it is only necessary to ensure that the sleeve 1 sleeved on the outer periphery of the top of the sonar cavity measuring instrument can move synchronously with the sonar cavity measuring instrument. For example, the sleeve 1 is plugged into and matched with the top of the sonar cavity measuring instrument to increase the convenience of disassembly and assembly, and for another example, the sleeve 1 is threadedly connected to the top of the sonar cavity measuring instrument to increase the firmness of the connection. Among them, the threaded connection method can be to set a threaded hole on the top side of the sonar cavity measuring instrument, set a through hole at a position corresponding to the threaded hole of the sleeve 1, and screw the bolt through the through hole into the threaded hole, or set an external thread on the top of the sonar cavity measuring instrument, and set an internal thread on the inner wall of the sleeve 1, so that the sleeve 1 can be screwed on the top of the sonar cavity measuring instrument, and these are not restrictive. The inside of the sleeve 1 is provided with a through hole for the cable of the sonar cavity measuring instrument to pass through, wherein the through hole penetrates the sonar cavity measuring instrument so that the cable can pass through the through hole. An elastic member 2 for the cable to pass through is provided on the inner wall of the sleeve 1 at the end away from the sonar cavity measuring instrument. The elastic member 2 can be passed through by the cable, so that the elastic member 2 can surround the outer periphery of the cable. At this time, the cable and the elastic member 2 may or may not be in contact. The design can be made according to actual needs. The inner wall of the elastic member 2 should extend out of the inner wall of the sleeve 1 so that the cable can contact the elastic member 2 at the position close to the opening of the sleeve 1, thereby reducing friction damage to the cable and reducing the risk of the cable being broken. A rolling member 3 is provided on the outer periphery of the sleeve 1. The rolling member 3 extends out of the outer wall of the sleeve 1 so that it can roll on the pipe wall or cavity wall in the well, so that the sleeve 1 and the pipe wall or cavity wall in the well can be rolled together.

[0026] In the protection device provided by the present invention, the sleeve 1 can be sleeved on the top periphery of the sonar cavity meter to protect the sonar cavity meter. During the process of raising and lowering the sonar cavity meter, the rolling component 3 can roll on the pipe wall or cavity wall in the well to reduce the contact area between the sonar cavity meter and the pipe wall or cavity wall in the well, and the rolling friction method can reduce the friction force, effectively avoiding the phenomenon of hard jamming of the sonar cavity meter when passing through complex pipelines and passing through the end of the casing shoe. The cable of the sonar cavity meter passes through the sleeve 1 to avoid direct contact between the cable and the end of the casing shoe, and the cable is in flexibly contact with the elastic member 2, reducing the risk of damage to the sonar cavity meter or falling into the cavity due to breaking of the steel cable, thereby improving the construction success rate and economic benefits.

[0027] Combination Figure 1 and Figure 2As shown, the rolling member 3 includes multiple groups of rolling elements, which are arranged at intervals along the circumferential direction of the sleeve 1, and each group of rolling elements includes multiple rolling element bodies arranged at intervals along the axial direction of the sleeve 1. This design method allows multiple rolling element bodies to be evenly distributed on the outer circumference of the sleeve 1, so that each position of the sleeve 1 can contact the pipe wall or cavity wall in the well through the rolling element bodies, and the multiple rolling element bodies can roll in all directions, ensuring the smoothness of the movement of the sleeve 1 and the sonar cavity measuring instrument.

[0028] As a feasible implementation, the rolling element body includes a ball 31 rotatably arranged on the outer wall of the sleeve 1. The ball 31 is a round structure, and the ball 31 can rotate in any direction. It can be made of steel to increase the service life, and the number of the ball 31 can be designed according to actual needs.

[0029] The side wall of the sleeve 1 of the present application is provided with a mounting hole for mounting the ball 31, the ball 31 is rotatably arranged in the mounting hole, and part of the ball 31 extends out of the mounting hole. In this design, the ball 31 can be limited in the mounting hole to prevent the ball 31 from escaping from the sleeve 1, and part of the ball 31 extends out of the side wall so that the ball 31 can roll on the pipe wall or cavity wall in the well.

[0030] As a feasible implementation method, Figure 1 As shown, the sleeve 1 includes an inner cylinder 11 and an outer cylinder 12 which are sleeved together, the mounting hole includes a receiving hole arranged on the outer wall of the inner cylinder 11 and an opening arranged on the side wall of the outer cylinder 12, the balls 31 are rotatably arranged in the receiving hole, and part of the balls 31 extend out of the opening. The outer cylinder 12 can be sleeved on the outer periphery of the inner cylinder 11, and the inner cylinder 11 and the outer cylinder 12 can be welded to increase the firmness of the connection. In addition, the outer cylinder 12 and the sleeve 1 can also be connected by bolts, which are not restrictive.

[0031] Among them, the inner cylinder 11 can be made of elastic material, and the outer cylinder 12 adopts a split design, that is, the outer cylinder 12 includes two half cylinders that can be buckled, and the two half cylinders after buckling can be connected by a limiter. The accommodating hole on the outer wall of the inner cylinder 11 should be larger than the semicircle, so that the ball 31 can be inserted into the accommodating hole and will not fall out. When installing the sleeve 1 of this design, first place a plurality of balls 31 in the corresponding accommodating holes, then buckle the two half cylinders on the outer periphery of the inner cylinder 11, and make each opening of the outer cylinder 12 correspond to a accommodating hole, so that part of the ball 31 can extend out of the opening, and then connect the two half cylinders by a limiter, which is convenient for installation and will not affect the rotation of the ball 31. Among them, the limiter can be a bolt, that is, the two half cylinders are connected by bolts after docking.

[0032] like Figure 1As shown, the elastic member 2 includes an elastic rubber ring 21 arranged on the inner wall of the end of the sleeve 1 away from the sonar cavity measuring instrument. The elastic rubber ring 21 is made of a flexible material with elasticity, so that it can be deformed under force without causing damage to the contact parts. The elastic member 2 under this design mode can allow the cable to pass through and can protect the cable.

[0033] Further optimized, the elastic rubber ring 21 is interference fit with the cable. In this design, the size of the opening formed inside the elastic rubber ring 21 matches the size of the cable, so that the cable can pass through the elastic rubber ring 21, and the elastic rubber ring 21 can fit tightly with the cable, so that the elastic rubber ring 21 can protect the cable and prevent external impurities from entering the sleeve 1 through the gap between the elastic rubber ring 21 and the cable, thereby preventing external impurities from damaging the top of the sonar cavity detector.

[0034] Further optimized, an annular groove is provided on the inner wall of the sleeve 1, and the elastic rubber ring 21 is arranged in the annular groove, and part of the elastic rubber ring 21 extends out of the annular groove. By providing the annular groove, the degree of freedom of the elastic rubber ring 21 along the axial direction of the sleeve 1 can be effectively limited, and the elastic rubber ring 21 is prevented from shaking in the axial direction of the sleeve 1.

[0035] like Figure 1 As shown, both ends of the sleeve 1 are provided with slope surfaces. Under this design, when the end of the sleeve 1 contacts the pipe wall or cavity wall in the well, the slope surface can guide the movement of the sleeve 1, thereby preventing the sleeve 1 from being damaged due to a large external force.

[0036] In some embodiments, the outer diameter of the sleeve 1 gradually decreases in the direction away from the sonar cavity measuring instrument, so that the sleeve 1 has a truncated cone structure. In this design, when the sonar cavity measuring instrument is taken out, the gradually changing sleeve 1 can guide the removal of the sonar cavity measuring instrument, so as to facilitate the removal of the sonar cavity measuring instrument.

[0037] When the salt cave sonar cavity measuring instrument lifting and lowering protection device provided by the present application is used, the salt cave sonar cavity measuring instrument lifting and lowering protection device is placed on the top of the sonar cavity measuring instrument, so that the sleeve 1 can be sleeved on the top periphery of the sonar cavity measuring instrument. It is simple and convenient to use, and greatly improves the success rate and economic benefits of the cavity measuring construction. The cable passes through the sleeve 1, and the elastic rubber ring 21 protects the cable. During the cavity measuring operation, the truncated cone-shaped sleeve 1 guides the sonar cavity measuring instrument. The sleeve 1 contacts the pipe wall or cavity wall in the well by rotating the ball 31 set on the sleeve 1. The contact area is small, which greatly reduces the friction resistance and the risk of getting stuck. Especially when the sonar cavity measuring instrument enters and exits the casing shoe port and the top of the salt cavity and other special positions, it effectively avoids the sonar cavity measuring instrument from getting stuck at the sleeve port, and effectively reduces the probability of the sonar cavity measuring instrument encountering resistance, the risk of cable breaking, and the risk of the sonar cavity measuring instrument being damaged or falling into the cavity during the cavity measuring process.

[0038] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. A salt cave sonar cavity detector tripping protection device, characterized in that: The invention comprises a sleeve (1) for being sleeved on the outer periphery of the top of a sonar cavity measuring instrument, wherein the sleeve (1) is provided with a through hole inside thereof through which the cable of the sonar cavity measuring instrument can pass, and an elastic member (2) through which the cable can pass is provided on the inner wall of the sleeve (1) at one end away from the sonar cavity measuring instrument, and a rolling member (3) is provided on the outer periphery of the sleeve (1), and the rolling member (3) extends out of the outer wall of the sleeve (1) so as to be able to roll on the pipe wall or cavity wall in the well.

2. The salt cave sonar cavity detector tripping and well protection equipment according to claim 1 is characterized in that: The rolling component (3) comprises a plurality of groups of rolling elements, which are arranged at intervals along the circumferential direction of the sleeve (1), and each group of rolling elements comprises a plurality of rolling element bodies which are arranged at intervals along the axial direction of the sleeve (1).

3. The salt cave sonar cavity detector tripping and well protection equipment according to claim 2 is characterized in that: The rolling element body comprises a ball (31) rotatably arranged on the outer wall of the sleeve (1).

4. The salt cave sonar cavity detector tripping protection equipment according to claim 3 is characterized in that: The side wall of the sleeve (1) is provided with a mounting hole for mounting the ball (31); the ball (31) is rotatably disposed in the mounting hole, and a portion of the ball (31) protrudes from the mounting hole.

5. The salt cave sonar cavity detector tripping and well protection equipment according to claim 4 is characterized in that: The sleeve (1) comprises an inner cylinder (11) and an outer cylinder (12) which are sleeved together; the mounting hole comprises a receiving hole arranged on the outer wall of the inner cylinder (11) and an opening arranged on the side wall of the outer cylinder (12); the ball (31) is rotatably arranged in the receiving hole, and a portion of the ball (31) extends out of the opening.

6. The salt cave sonar cavity detector tripping and well protection equipment according to claim 1 is characterized in that: The elastic member (2) comprises an elastic rubber ring (21) arranged on the inner wall of the sleeve (1) at an end away from the sonar cavity measuring instrument.

7. The salt cave sonar cavity detector tripping and well protection equipment according to claim 6 is characterized in that: An annular groove is provided on the inner wall of the sleeve (1), the elastic rubber ring (21) is arranged in the annular groove, and a portion of the elastic rubber ring (21) protrudes from the annular groove.

8. The salt cave sonar cavity detector tripping and well protection equipment according to claim 7 is characterized in that: The elastic rubber ring (21) is interference fit with the cable.

9. The salt cave sonar cavity detector tripping and well protection equipment according to claim 1 is characterized in that: Both ends of the sleeve (1) are respectively provided with slope surfaces.

10. The salt cave sonar cavity detector tripping and well protection equipment according to claim 1, characterized in that: The outer diameter of the sleeve (1) gradually decreases in a direction away from the sonar cavity measuring instrument.

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