A logging downhole tool disassembly device

Abstract

The utility model discloses a logging downhole instrument dismounting device, including annular main part, multiple screw holes of setting in the lateral wall of annular main part, sets up the top silk of screw hole, sets up the built -in ring of annular main part inner wall and even setting multiple handles of annular main part outer wall, wherein, the top silk passes into the control of the part of entering annular main part through entering the different depth of screw hole, realizes the clamping operation of the article in built -in ring, through setting multiple screw holes in annular main part lateral wall, and setting top silk at screw hole, setting built -in ring at annular main part inner wall, and even setting multiple handles at outer wall, the top silk props built -in ring and then clamps the dismounting device of screw ring, can realize balanced force, can increase the rated load, the deformation of the device such as dismounted screw ring is smaller, the design of multiple handles can balance the applied force, reduce resistance.

Description

Technical Field

[0001] This utility model relates to the field of well logging downhole instrument technology, and in particular to a well logging downhole instrument disassembly device. Background Technology

[0002] Well logging: also known as geophysical logging, oilfield geophysical logging, or mining geophysical logging. It involves using different downhole instruments to continuously measure and record the geophysical parameters of various rocks along the geological profile.

[0003] Well logging downhole instruments: Well logging downhole instruments are a collective term for instruments used in well logging to measure formation physical parameters downhole and convert the measured parameters into electrical signals in analog, pulse, and digital forms, which are then transmitted to surface instruments.

[0004] Horizontal well: In a narrow sense, it refers to a development well drilled along the target formation to increase oil and gas production. In a broader sense, it refers to a well with an inclination of approximately 90°.

[0005] As the number of horizontal wells with longer and ultra-long sections gradually increases, the complexity of well logging downhole instruments becomes more sophisticated, leading to increased stress. This makes disassembly and assembly of well logging downhole instruments using tools such as hook wrenches, clamps, and clamps more difficult, frequently resulting in tool damage. After well logging operations in horizontal and complex wells, the instruments are subjected to various complex forces, especially forces exceeding those experienced during normal well logging operations. Conventional tools such as hook wrenches, clamps, pipe wrenches, and chain pliers are insufficient for disassembly even by simply rotating the threads, causing damage to both the well logging downhole instruments and these conventional tools.

[0006] Furthermore, the assembly and disassembly of the two components of a well logging downhole instrument with a sealing effect present difficulties due to the lack of specialized tools for installation and disassembly. Utility Model Content

[0007] The purpose of this utility model is to provide a well logging downhole instrument disassembly device, which solves the problem of the difficulty in disassembling well logging downhole instruments, and also solves the difficulty in closing and separating the two components of well logging downhole instruments with sealing effect, thereby achieving the goal of solving the difficulty in disassembling well logging downhole instruments.

[0008] To solve the above-mentioned technical problems, this utility model provides a well logging downhole instrument disassembly device, including an annular body, multiple screw holes disposed on the side wall of the annular body, a set screw disposed on the screw holes, an inner ring disposed on the inner wall of the annular body, and multiple handles uniformly disposed on the outer wall of the annular body. The set screws can control the portion of the annular body that enters the screw holes at different depths, thereby achieving the clamping operation of objects inside the inner ring.

[0009] The number of screw holes is at least three, and the screw holes are distributed circumferentially on the annular body.

[0010] The built-in ring can be an integrated built-in ring or a split built-in ring, and the split built-in ring includes multiple built-in components.

[0011] Among them, the central angles of the annular main body corresponding to the multiple built-in sub-parts are equal, and the central angles of the built-in sub-parts are 45°-90°.

[0012] Each of the built-in components corresponds one-to-one with the screw hole.

[0013] It also includes a bent portion disposed on at least one side of the built-in ring, the bent portion being used to engage with the top or bottom of the ring body.

[0014] The multiple handles are in the same plane and parallel to the top surface of the annular body. The handles are either straight or curved.

[0015] It also includes a force-applying rod movably connected to the handle, the force-applying rod being used to drive the annular body to rotate via the handle.

[0016] The handle is 20cm-30cm long, 30mm-40mm wide, and 15mm-20mm thick.

[0017] It also includes a depth indicator disposed along the length of the set screw, the depth indicator being used to indicate the diameter of the object held by the built-in ring.

[0018] The well logging downhole instrument disassembly device provided in this embodiment of the invention has the following advantages compared with the prior art:

[0019] The well logging downhole instrument disassembly device provided in this embodiment of the utility model has multiple screw holes on the outer wall of the annular body, and set screws in the screw holes. An inner ring is set on the inner wall of the annular body, and multiple handles are evenly arranged on the outer wall. The set screws press against the inner ring and clamp the threaded ring to be disassembled. This can achieve balanced force application, increase the rated load, and reduce the deformation of the disassembled threaded ring and other devices. The multi-handle design can balance the applied force and reduce resistance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 An exploded structural diagram of an embodiment of the well logging downhole instrument disassembly device provided by this utility model;

[0022] Among them, 1-ring body, 2-handle, 3-set screw, 4-inner ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , Figure 1 An exploded structural diagram of one embodiment of the well logging downhole instrument disassembly device provided by this utility model.

[0025] In one specific embodiment, the well logging downhole instrument disassembly device includes an annular body 1, multiple screw holes disposed on the side wall of the annular body 1, a set screw 3 disposed on the screw holes, an inner ring 4 disposed on the inner wall of the annular body 1, and multiple handles 2 uniformly disposed on the outer wall of the annular body 1. The set screw 3 controls the portion of the annular body 1 that enters it to different depths by entering the screw holes, thereby achieving the clamping operation of the object inside the inner ring 4.

[0026] By setting multiple screw holes on the outer wall of the annular body 1 and setting set screws 3 in the screw holes, setting an inner ring 4 on the inner wall of the annular body 1, and evenly setting multiple handles 2 on the outer wall, the set screws 3 press against the inner ring 4 to clamp the threaded ring disassembly device, which can achieve balanced force application, increase the rated load, and reduce the deformation of the disassembled threaded ring and other devices. The design of multiple handles 2 can balance the applied force and reduce resistance.

[0027] This application does not limit the number, size, or distribution of the screw holes. The number of screw holes is at least three, and multiple screw holes are distributed circumferentially on the annular body 1.

[0028] By having at least three screw holes distributed circumferentially around the annular body 1, the set screw 3 in the screw holes can apply pressure to the inner ring 4 in the circumferential direction, with the force direction perpendicular to the inner ring 4. This reduces damage to the clamped parts and the entire clamping device, and improves service life.

[0029] This application does not impose any restrictions on the number or distribution of screw holes.

[0030] In this application, an internal ring 4 is used to clamp the component. Its structure is not limited. The internal ring 4 can be an integral internal ring or a split internal ring. The split internal ring 4 includes multiple internal parts.

[0031] One type uses an integrated built-in ring, which can be directly processed from a single steel plate or other material. Another type uses a split built-in ring, which can be achieved by using multiple split built-in rings connected or disconnected.

[0032] This application does not impose any restrictions on the material, processing method, or installation method of the built-in ring 4.

[0033] To improve ease of installation and uniform force distribution, in one embodiment, the central angles of the annular body 1 corresponding to the multiple built-in sub-units are equal, and the central angles corresponding to the built-in sub-units are 45°-90°.

[0034] By making the central angles of the annular body 1 corresponding to the multiple built-in sub-body equal, the force can be evenly distributed in all directions, the installation process is simple, and damage to the operating parts is reduced.

[0035] For example, using 4 built-in sub-units with a central angle of 90°, 6 built-in sub-units with a central angle of 60°, or other numbers of built-in sub-units.

[0036] Preferably, each of the built-in components corresponds one-to-one with the screw hole.

[0037] By aligning the built-in components with the screw holes one by one, when installing or disassembling parts of different sizes, you only need to install the built-in components according to the position of the screw holes. When the set screw 3 moves back and forth, the built-in components move to both sides, not to one side. The set screw 3 will not enter the gap between the two built-in components, thus improving the reliability of use.

[0038] It should be noted that this application may also include a built-in split structure with multiple screw holes, or other structural designs, which are not limited in this application.

[0039] Because the inner side of the annular body 1 can easily slip down during the setting of the built-in ring 4, resulting in poor fixing efficiency, in one embodiment, in order to solve this technical problem, the well logging downhole instrument disassembly device further includes a bending portion provided on at least one side of the built-in ring 4, the bending portion being used to engage with the top or bottom of the annular body 1.

[0040] By means of a bend on at least one side of the built-in ring 4, the bend is used to engage with the top or bottom of the ring body 1 during use, preventing it from slipping down and improving installation efficiency and reliability.

[0041] This application does not impose any limitations on the size or shape of the bent portion.

[0042] To further balance the forces, in one embodiment, multiple handles 2 are in the same plane and parallel to the top surface of the annular body 1, and the handles 2 are either straight handles 2 or curved handles 2.

[0043] By placing multiple handles 2 in the same plane and parallel to the top surface of the annular body 1, the force applied during disassembly will be in one plane, reducing damage to components caused by lateral forces and improving disassembly efficiency.

[0044] Handle 2 can be a straight handle, a curved handle, or a handle of other shapes to meet different operating needs.

[0045] To further improve disassembly efficiency and reduce disassembly difficulty, in one embodiment, the downhole instrument disassembly device further includes a force-applying rod movably connected to the handle 2, the force-applying rod being used to drive the annular body 1 to rotate via the handle 2.

[0046] By setting up a force-adding rod, the torque can be increased, reducing the difficulty of disassembly and improving disassembly efficiency.

[0047] This application does not limit the structure or installation difficulty of the extension rod. It can be a socket, or a bolt connection with threads on the handle 2, or other connection methods.

[0048] This application does not limit the size and installation method of the handle 2. In one embodiment, the length of the handle 2 is 20cm-30cm, the width of the handle 2 is 30mm-40mm, and the thickness of the handle 2 is 15mm-20mm.

[0049] Since the required insertion depth of the top wire 3 varies for different components, in order to improve operational accuracy, ensure that the clamping component is in the center of the annular body 1, and improve disassembly efficiency, in one embodiment, the well logging downhole instrument disassembly device further includes a depth marker set in the length direction of the top wire 3. The depth marker is used to display the diameter of the object clamped by the built-in ring 4.

[0050] By setting a depth mark along the length of the set screw 3, it is possible to determine whether the operation is in place simply by observing the depth of insertion during the clamping of different components. This prevents some set screws 3 from being inserted too deeply and others from being inserted too little, thus avoiding the clamping component being out of the center of the annular body 1 and improving operational efficiency.

[0051] In one embodiment, the well logging downhole instrument disassembly device is a ring with a diameter larger than that of the well logging downhole instrument as the main body. Multiple radial threaded holes are symmetrically distributed on the main body. The threaded holes are used to install convex top screws 3. Rotating the convex top screws 3 will press against the top screws 3 holes on the threaded ring of the well logging downhole instrument.

[0052] Two symmetrical handles 2 are welded onto the main body. Rotating the handles 2 drives the threaded ring or pull ring on the downhole instrument to rotate, thereby achieving the purpose of disassembling or connecting the logging downhole instrument.

[0053] A force-adjusting rod is installed on handle 2; rotating the force-adjusting rod increases the torque. The main body also has an axial hole; the two parts work together to install a lead screw, which drives the two fixed parts to close and separate, thus enabling the installation and removal of well logging downhole instruments.

[0054] When the rotating convex set screw 3 of this invention abuts against the set screw 3 hole on the well logging downhole instrument housing, it serves to fix the well logging downhole instrument. An internal ring 4 is made according to the well logging downhole instrument housing and placed on the housing. The rotating convex set screw 3 abuts against the internal ring 4 on the well logging downhole instrument housing, fixing the well logging downhole instrument housing without the set screw 3 hole. This achieves the purpose of fixing the well logging downhole instrument. The internal ring 4 effectively avoids damage to the rubber materials, fiberglass materials, sealing surfaces, and threads on the instrument.

[0055] The main body is ring-shaped, with symmetrically distributed threaded mounting screws 3. The mounting screws 3 hold the threaded ring and other devices in place, balancing the force and increasing the rated load. The deformation of the disassembled threaded ring and other devices is minimal. The inner diameter of the main body is larger than the outer diameter of the disassembled threaded ring and other devices. The contact between the main body and the disassembled threaded ring and other devices is adjusted by the mounting screws 3, thus expanding the applicable range.

[0056] Two handles 2 are symmetrically welded to the main body, which increases the force application points compared to a single handle 2, and can balance the force. While ensuring the torque of the threaded ring and other devices, it reduces the frictional resistance of the threaded ring and other devices.

[0057] The built-in ring 4 is designed according to the outer diameter of the well logging downhole instrument shell. It can be fitted onto the well logging downhole instrument shell with a certain strength. After being held in place by the top screw 3, it increases the contact area with the well logging downhole instrument shell, which reduces the pressure on the well logging downhole instrument shell and increases the friction between the present invention and the well logging downhole instrument shell.

[0058] The main body is a ring structure with multiple symmetrically distributed set screws 3, which symmetrically act on the disassembled logging instrument; two handles 2 are symmetrically welded to the outside of the main body, which can both add a force-adding rod to increase torque and simultaneously act on the two handles 2, so that the disassembled logging downhole instrument is subjected to balanced force, thereby reducing resistance; the built-in ring 4 can reduce the pressure on the logging downhole instrument and play a role in protecting the downhole instrument; the set screws 3 can be adjusted to increase the applicable range.

[0059] When used together, the two inventions add two sets of lead screw and nut devices, which can finely control the joining and separating of the two components of the well logging downhole instrument.

[0060] In summary, the well logging downhole instrument disassembly device provided by this utility model embodiment, by setting multiple screw holes on the outer wall of the annular body and setting set screws in the screw holes, setting an inner ring on the inner wall of the annular body, and evenly setting multiple handles on the outer wall, the set screws press against the inner ring to clamp the threaded ring being disassembled, which can achieve balanced force application, increase the rated load, and reduce the deformation of the disassembled threaded ring and other devices. The multi-handle design can balance the applied force and reduce resistance.

[0061] The above provides a detailed description of the well logging downhole instrument disassembly device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A device for disassembling well logging downhole instruments, characterized in that, The device includes an annular body, multiple screw holes on the side wall of the annular body, set screws in the screw holes, an inner ring on the inner wall of the annular body, and multiple handles evenly distributed on the outer wall of the annular body. The set screws can be inserted into the annular body at different depths by controlling the portion of the screws that enter the screw holes, thereby achieving a clamping operation on the object inside the inner ring.

2. The well logging downhole instrument disassembly device as described in claim 1, characterized in that, The number of screw holes is at least three, and the plurality of screw holes are distributed circumferentially on the annular body.

3. The well logging downhole instrument disassembly device as described in claim 1, characterized in that, The built-in ring can be an integrated built-in ring or a split built-in ring, and the split built-in ring includes multiple built-in components.

4. The well logging downhole instrument disassembly device as described in claim 3, characterized in that, The central angles of the annular main body corresponding to the multiple built-in sub-parts are equal, and the central angles of the built-in sub-parts are 45°-90°.

5. The well logging downhole instrument disassembly device as described in claim 4, characterized in that, Each of the built-in components corresponds one-to-one with the screw hole.

6. The well logging downhole instrument disassembly device as described in claim 5, characterized in that, It also includes a bent portion disposed on at least one side of the built-in ring, the bent portion being used to engage with the top or bottom of the ring body.

7. The well logging downhole instrument disassembly device as described in claim 1, characterized in that, The multiple handles are in the same plane and parallel to the top surface of the annular body. The handles are either straight handles or curved handles.

8. The well logging downhole instrument disassembly device as described in claim 7, characterized in that, It also includes a force-adding rod movably connected to the handle, the force-adding rod being used to drive the annular body to rotate via the handle.

9. The well logging downhole instrument disassembly device as described in claim 8, characterized in that, The handle is 20cm-30cm long, 30mm-40mm wide, and 15mm-20mm thick.

10. The well logging downhole instrument disassembly device as described in claim 1, characterized in that, It also includes a depth indicator disposed along the length of the set screw, the depth indicator being used to indicate the diameter of the object held by the built-in ring.

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