Dismounting device for under-pressure joint of logging instrument

Abstract

The dismounting device is used for dismounting the logging instrument and comprises a sleeve, a transfer structure, a driving source and a fixing base, a buffering cushion is arranged in the middle of the interior of the sleeve, a stress structure is arranged at one end of the sleeve and used for driving the sleeve to rotate after being stressed, a dismounting part is arranged at the other end of the sleeve, and the rotating structure is used for rotating the sleeve. The dismounting part is used for dismounting after the logging instrument is contained, the dismounting part is matched with the logging instrument, the first end of the transfer structure is matched with the stress structure, the driving source is connected with the transfer structure and drives the transfer structure to move, the driving source, the transfer structure and the sleeve are all arranged on the fixing base, the transfer structure is provided with a limiting part, and the limiting part is matched with the limiting part. And the limiting part is used for preventing the transfer structure from rotating. The device has the advantages of reliability in use, capability of avoiding potential safety hazards and the like.

Description

Technical Field

[0001] This utility model belongs to the field of logging instrument disassembly technology, specifically relating to a logging instrument pressurized connector disassembly device. Background Technology

[0002] like Figure 1 The diagram shows a commonly used logging instrument. It includes the instrument body 1000, a connector 1001, and a threaded ring 1002 at the top of 1001. The threaded ring has four cylindrical grooves 1003 (approximately 0.5 cm in diameter) for attaching and detaching the connector using a hook wrench. By rotating the threaded ring 1002, the connector 1001 can be connected to or disconnected from the instrument body 1000. When connected, the instrument body 1000 can withstand pressures exceeding 200 MPa both internally and externally. Additionally, the instrument body 1000 has a heat insulation function, effectively reducing the transmission efficiency of high downhole temperatures into the instrument body and maintaining the normal operation of internal electronic components. Even with the heat insulation, the internal temperature still rises after the instrument is inserted into the well and cannot recover quickly, resulting in higher internal pressure than external pressure. Furthermore, some logging instruments, such as pressure sampling pumps and their sub-sections, incorporate spring structures within their bodies. In both cases, the spring force or internal pressure generated by high temperature inside the instrument will exert a thrust on the internal connector 1004, thus indirectly affecting connector 1001. Therefore, manually disassembling the connector using a hook wrench to turn the threaded ring 1002 becomes extremely difficult. Furthermore, the sudden release of internal pressure at the moment the connector is disassembled can cause it to spring out a short distance, potentially resulting in personal injury or equipment damage. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a reliable logging instrument pressurized connector disassembly device that can avoid safety hazards.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A logging instrument pressurized connector disassembly device, used for disassembling logging instruments, including:

[0006] A sleeve, wherein a buffer pad is provided in the middle of the sleeve, a force-bearing structure is provided at one end of the sleeve, the force-bearing structure is used to drive the sleeve to rotate after being subjected to force, and a disassembly part is provided at the other end of the sleeve, the disassembly part is used to disassemble the logging instrument after it is filled, and the disassembly part is compatible with the logging instrument.

[0007] The transfer structure has its first end adapted to the force-bearing structure (the transfer structure is used to receive force and then transmit it to the force-bearing structure and drive the sleeve to rotate; the transfer structure can move left and right).

[0008] The driving source is connected to the transfer structure and drives the transfer structure to move.

[0009] The drive source, the transfer structure, and the sleeve are all mounted on the fixed base. The transfer structure is provided with a limiting part, which is used to prevent the transfer structure from rotating.

[0010] Preferably, the force-bearing structure includes a first threaded portion, the transfer structure is a threaded rod, and the threaded rod is provided with a second threaded portion, which is adapted to the first threaded portion.

[0011] Preferably, the limiting part is an anti-rotation pin, and the threaded rod is mounted on the fixed seat through the anti-rotation pin.

[0012] Preferably, the driving source is a hand pump, the output end of which is connected to a threaded rod, and the hand pump drives the threaded rod to move.

[0013] Preferably, the disassembly section has a plurality of positioning holes, and the disassembly section is connected to the logging instrument through the positioning holes.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects:

[0015] (1) This utility model is provided with a drive source, a transfer structure and a sleeve, etc. When used, the drive source drives the transfer structure to move, and the transfer structure cooperates with the force-bearing structure of the sleeve to drive the sleeve to rotate. The sleeve can complete the disassembly of the logging instrument. The structure is simple, the design is reasonable and the use is reliable.

[0016] (2) The sleeve of this utility model is provided with a disassembly part and a buffer pad. The disassembly part can hold the logging instrument, and the buffer pad can cushion the logging instrument after it is disassembled, preventing structural damage and injury to the disassembly personnel after the logging instrument is ejected.

[0017] In summary, this utility model has the advantages of reliable use and avoidance of safety hazards. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a well logging instrument in the existing technology;

[0019] Figure 2 This is a structural diagram of the present invention when the base is removed;

[0020] Figure 3 This is a structural schematic diagram of the disassembly and logging instrument of this utility model. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] In this embodiment, a logging instrument pressurized connector disassembly device is proposed, which can be used to disassemble logging instruments safely and without damage.

[0028] like Figure 2-3As shown, in one embodiment of this utility model, the logging instrument pressurized connector disassembly device of this utility model includes a sleeve 1, a transfer structure 2, a drive source 3, and a fixed base 4. A buffer pad 11 is provided in the middle of the sleeve 1. A force-bearing structure 12 is provided at one end of the sleeve 1, which is used to drive the sleeve 1 to rotate after being subjected to force. A disassembly part 13 is provided at the other end of the sleeve 1. The disassembly part 13 is used to disassemble the logging instrument after it has been placed inside. The disassembly part 13 is adapted to the logging instrument. The force-bearing structure 12 includes a first threaded part 121. The disassembly part 13 has several positioning holes 14. The disassembly part 13 is connected to the logging instrument through the positioning holes 14. Existing logging instruments have a threaded ring with four cylindrical grooves. In this utility model, the positioning holes 14 in the disassembly part 13 correspond to the four cylindrical grooves on the threaded ring, allowing for screw installation and fixing. That is, the positioning holes 14 can also be four, corresponding to the cylindrical grooves.

[0029] The first end of the transfer structure 2 of this utility model is adapted to the force-receiving structure 12. The transfer structure 2 is used to receive force and transmit it to the force-receiving structure 12, driving the sleeve 1 to rotate. The transfer structure 2 can move left and right. The transfer structure 2 is a threaded rod with a second threaded part 211 on it. The second threaded part 211 is adapted to the first threaded part 121. The driving source 3 is connected to the transfer structure 2 and drives the transfer structure 2 to move. The driving source 3, the transfer structure 2, and the sleeve 1 are all mounted on the fixed base 4. The transfer structure 2 is provided with a limiting part 22, which is used to prevent the transfer structure 2 from rotating. The limiting part 22 is an anti-rotation pin. The threaded rod is mounted on the fixed base 4 through the anti-rotation pin. The driving source 3 is a hand pump. The output end of the hand pump is connected to the threaded rod. The hand pump drives the threaded rod to move. Figure 2 For example, the threaded rod can move left and right. In this utility model, when the logging instrument is disassembled, its right side can be fixed so that the left connector part of the logging instrument can be disassembled using this utility model.

[0030] Please continue to refer to Figure 2 and Figure 3The disassembly part 13 of this utility model is a hollow cylindrical structure, and its inner diameter is slightly larger than the outer diameter of the connector on the left side of the logging instrument and the threaded ring. In specific applications, the distance between the buffer pad 11 and the connector of the logging instrument is twice the length of the threaded ring. It is used to buffer and protect the logging instrument connector after the connector is disassembled. The first thread 121 and the second thread 211 are both right-hand threads. The length of the first thread 121 is 4.5 times the length of the threaded ring, and the length of the second thread 211 is 0.8 times the length of the first thread 121. The anti-rotation pin of this utility model can be set in two and distributed at 180 degrees. It is used to rotate when the transfer structure 2 is pushed by the hand pump. At this time, the transfer structure 2 only moves in the left and right directions. The left end of the threaded rod is a groove-like structure with a diameter slightly larger than the output end diameter of the hand pump. This ensures the stability of the hand pump and the threaded rod when the hand pump applies a push to the threaded rod.

[0031] The hand pump of this utility model is an integral power output device, namely the drive source 3. It can apply a thrust to push the threaded rod to the right to cooperate with the force-receiving structure 12. The force-receiving structure 12 drives the sleeve 1 to rotate. The rotation of the sleeve 1 can drive the connector of the logging instrument to rotate, thereby realizing disassembly.

[0032] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A logging instrument pressurized connector disassembly device, used for disassembling logging instruments, characterized in that, include: A sleeve, wherein a buffer pad is provided in the middle of the sleeve, a force-bearing structure is provided at one end of the sleeve, the force-bearing structure is used to drive the sleeve to rotate after being subjected to force, and a disassembly part is provided at the other end of the sleeve, the disassembly part is used to disassemble the logging instrument after it is filled, and the disassembly part is compatible with the logging instrument. The transfer structure has its first end adapted to the load-bearing structure. The driving source is connected to the transfer structure and drives the transfer structure to move. The drive source, the transfer structure, and the sleeve are all mounted on the fixed base. The transfer structure is provided with a limiting part, which is used to prevent the transfer structure from rotating.

2. The logging instrument pressurized connector disassembly device according to claim 1, characterized in that: The force-bearing structure includes a first threaded portion, and the transfer structure is a threaded rod with a second threaded portion that is adapted to the first threaded portion.

3. The logging instrument pressurized connector disassembly device according to claim 2, characterized in that: The limiting part is an anti-rotation pin, and the threaded rod is mounted on the fixed seat through the anti-rotation pin.

4. The logging instrument pressurized connector disassembly device according to claim 2, characterized in that: The driving source is a hand pump, the output end of which is connected to a threaded rod, and the hand pump drives the threaded rod to move.

5. The logging instrument pressurized connector disassembly device according to claim 1, characterized in that: The disassembly section is provided with several positioning holes, and the disassembly section is connected to the logging instrument through the positioning holes.

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