Integrated structure of array sonic logging instrument transmitting transformer skeleton

Through integrated structural design and support frame made of 2A12 material, the problem of insufficient strength of the array acoustic logging tool's transmitting transformer skeleton in the downhole environment was solved, realizing stable installation and convenient disassembly of the transformer, and improving the stability and maintenance efficiency of the equipment.

CN224501611UActive Publication Date: 2026-07-14CHINA NAT PETROLEUM CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA NAT PETROLEUM CORP
Filing Date
2025-06-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing dipole array acoustic logging tool transmitter transformer frame is not strong enough in the complex downhole environment. The splicing points are prone to loosening, deformation or breakage, which leads to a decrease in structural stability and makes disassembly and maintenance cumbersome and costly.

Method used

The integrated structural design uses a main frame and support frame made of 2A12 material. The transformer is fixed by threaded holes in the support plate, support frame and fixing plate. Combined with slots, blocks and screws, the transformer can be installed stably and disassembled easily.

Benefits of technology

It improves the operational stability of the transmitting transformer, simplifies the disassembly and maintenance process, reduces the risk of equipment damage, and enhances the efficiency and reliability of the logging tool.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of acoustic logging, especially array acoustic logging appearance transmitting transformer framework integration structure, including main frame body and support frame, the inner wall of the front and back both ends of main frame body is fixedly connected with support frame, and support frame is constituted by support block, support plate and support frame, and the left and right ends of support block are fixedly connected with the support plate of symmetrical distribution, the four corners edge department of support plate all is penetrated and has set up first threaded hole, and the left and right symmetrical support frame is fixedly connected with the end of support plate away from each other, the lower end of support frame all is fixedly connected with fixed plate, and the upper end of fixed plate all is penetrated and has set up the second threaded hole of left and right symmetry, the utility model discloses through the integral type support frame of additional installation, can support and fix the transformer, and the stability of the transformer on acoustic logging appearance can be guaranteed when working with main support, and integral type support frame is convenient for the disassembly and maintenance of transformer, reduces the situation that the support frame is damaged and deformed because of frequent disassembly.
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Description

Technical Field

[0001] This utility model belongs to the field of acoustic logging, specifically relating to an integrated structure of the transmitting transformer skeleton of an array acoustic logging tool. Background Technology

[0002] The transmitting transformer skeleton in the array acoustic logging tool is made of high-strength materials such as stainless steel or ceramic. It is the core structural component used to support and fix the multi-pole transmitting transformer assembly. It has functions such as mechanical support and spatial layout, signal transmission and insulation protection, and acoustic emission performance optimization. By integrating multi-pole transmitting modules, adopting a triple-layer transducer structure and high-temperature and high-pressure resistant materials, it achieves low-frequency signal enhancement and adaptability to complex environments. It is widely used in fields such as oil and gas reservoir evaluation, cementing quality inspection, and complex structure detection.

[0003] The existing dipole array acoustic logging tool uses a spliced ​​structure for its internal transmitting transformer frame. One end of the upper and lower frame plates is fixed to the connector on the frame with screws. This structure faces the challenge of insufficient strength in the complex working environment downhole. Downhole conditions often include harsh conditions such as high temperature, high pressure, and mechanical vibration. The integral structure formed by splicing stainless steel sheets with screws is prone to loosening, deformation, or even breakage at the splice points when subjected to these external loads for a long time. This leads to a decrease in the structural stability of the transmitting transformer and affects its normal operation. During equipment maintenance and repair, the transmitting transformer needs to be frequently disassembled and replaced. However, the existing structural design makes the disassembly process cumbersome, which not only increases maintenance costs but may also damage the transformer assembly or other related components due to improper disassembly, reducing the efficiency and reliability of the logging tool. Utility Model Content

[0004] To overcome the problems of insufficient structural strength of the sonic logging tool transmitter transformer skeleton during use and the cumbersome disassembly and maintenance, an integrated structure of the array sonic logging tool transmitter transformer skeleton is proposed.

[0005] The technical solution of this utility model is as follows: an integrated structure of the transmitting transformer skeleton of an array acoustic logging tool, including a main frame and a support frame. The support frame is fixed to the inner wall of the front and rear ends of the main frame. The support frame is composed of a support block, a support plate and a support frame. The support block is fixed to the center of the inner wall of the front and rear ends of the main frame. The left and right ends of the support block are fixed to symmetrically distributed support plates. The four corner edges of the support plate are all provided with first threaded holes. The ends of the support plates that are far apart from each other are fixed to symmetrical support frames. The lower ends of the support frames are all fixed to fixing plates. The upper ends of the fixing plates are all provided with symmetrical second threaded holes. The lower ends of the support block, support plate and support frame are flush. The upper ends of the support block and support frame are all provided with several wiring holes.

[0006] Furthermore, grooves are provided on the inner walls at both the front and rear ends of the main frame, and the grooves are located on the upper side of the support frame.

[0007] Furthermore, a symmetrical slot is provided at the left end of the main frame, and a locking block is slidably installed in the slot.

[0008] Furthermore, the left end of the card block is fixedly connected to the upper connector, and the right end of the upper connector has a through hole.

[0009] Furthermore, a cable routing hole is provided through the center of the left end of the main frame, with each cable routing hole corresponding to a through hole.

[0010] Furthermore, a third threaded hole is provided through one end of the slots that are far apart from each other, and a fourth threaded hole is provided through both the upper and lower ends of the block. A screw is installed in the internal thread of the third threaded hole.

[0011] Furthermore, the screw passes through the third threaded hole and is threaded into the fourth threaded hole. A mounting post is fixed to the center of the right end of the main frame, and the mounting post is connected to a sound system connector via an O-ring.

[0012] The beneficial effects of this utility model are as follows: The transformer can be supported by the support plate, and the first threaded hole at the upper end of the support plate can be used with bolts to limit and fix the transformer on the support plate. The inner wall of the support frame can support the transformer, and the second threaded hole on the fixing plate can be used with bolts to limit and fix the transformer inside the support frame. Terminals can be installed in the wiring hole. The main frame and the support frame are made of 2A12 steel. The integrated support frame fixed in the main frame can ensure the strength during operation. Compared with the existing sonic logging tool transmitting transformer skeleton, the added integrated support frame can support and fix the transformer. Together with the main support, it can ensure the stability of the transformer on the sonic logging tool during operation. Moreover, the integrated support frame facilitates the disassembly and maintenance of the transformer, reducing the occurrence of damage and deformation of the support frame due to frequent disassembly. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0014] Figure 2 The diagram shown is a three-dimensional structural disassembly diagram of this utility model;

[0015] Figure 3 The diagram shown is a three-dimensional disassembled view of the support frame of this utility model.

[0016] Figure 4 The diagram shows a three-dimensional structural representation of the main frame, slot, third threaded hole, screws, and mounting brackets of this utility model.

[0017] Figure 5The diagram shown is a three-dimensional disassembled view of the upper connector and the acoustic connector of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Main frame; 2. Support frame; 201. Support block; 202. Support plate; 203. First threaded hole; 204. Support frame; 205. Fixing plate; 206. Second threaded hole; 207. Wiring hole; 3. Upper connector; 4. Acoustic connector; 5. Groove; 6. Slot; 7. Cable routing hole; 8. Third threaded hole; 9. Screw; 10. Mounting post; 11. Locking block; 12. Through hole; 13. Fourth threaded hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1

[0021] Please see Figures 1-5 This utility model provides an embodiment: an integrated structure of the transmitting transformer skeleton of an array acoustic logging tool, including a main frame 1 and a support frame 2. The support frame 2 is fixed to the inner walls of the front and rear ends of the main frame 1. The support frame 2 is composed of a support block 201, a support plate 202 and a support frame 204. The support block 201 is fixed to the center of the inner walls of the front and rear ends of the main frame 1. The left and right ends of the support block 201 are fixed with symmetrically distributed support plates 202. The four corner edges of the support plate 202 are all provided with first threaded holes 203. The ends of the support plates 202 that are far apart from each other are fixed with symmetrically distributed support frames 204. The lower ends of the support frames 204 are all fixed with fixing plates 205. The upper ends of the fixing plates 205 are all provided with symmetrically distributed second threaded holes 206. The lower ends of the support block 201, the support plate 202 and the support frame 204 are flush. The upper ends of the support block 201 and the support frame 204 are all provided with several wiring holes 207.

[0022] The support plate 202 provides support for the transformer assembly. A first threaded hole 203 on the upper end of the support plate 202 allows for bolt fixing of the transformer assembly. By aligning the fixing holes on the transformer assembly with the first threaded hole 203 on the support plate 202, and passing the bolt through the fixing holes on the transformer assembly, the bolt is threaded into the first threaded hole 203, thus fixing the transformer assembly onto the support plate 202. This facilitates transformer assembly installation while ensuring stability during operation. The inner wall of the support frame 204 provides support for the transformer. A second threaded hole 206 on the fixing plate 205 allows for bolt fixing. The transformer within the support frame 204 is fixed in place. A terminal block can be installed in the wiring hole 207 to fix the connecting wires between the transformer components, thereby connecting the connecting wires of the transformer components. The main frame 1 and the support frame 2 are made of 2A12 steel. This material ensures the strength of the main frame 1 and the support frame 2, and is lighter than ordinary cast iron, with strong corrosion resistance. Together with the support frame 2, which is integrally fixed within the main frame 1, it ensures the strength during operation, improves the stability of the device during operation, facilitates the installation and disassembly of the transformer, avoids damage and deformation of the support frame 2, and improves the reliability of the logging tool during operation.

[0023] Example 2

[0024] Please see Figure 4 In this embodiment, grooves 5 are provided on the inner walls of the front and rear ends of the main frame 1. The grooves 5 are located on the upper side of the support frame 2. In use, the grooves 5 provide space for the placement and storage of the connecting wires of the equipment installed on the support frame 2. The wires are placed in the gap between the transformer assembly and the main frame 1 and stored by the grooves 5, which can avoid the wires being messy and affecting maintenance and use, and improve the convenience of subsequent maintenance and the stability during operation. A symmetrical slot 6 is provided through the left end of the main frame 1. A locking block 11 is slidably provided in the slot 6. In use, the slot 6 can cooperate with the locking block 11 to determine the installation position of the upper connector 3 and help fix the upper connector 3. This can facilitate the installation of the upper connector 3 and ensure the firmness of the connection between the upper connector 3 and the main frame 1 during operation, reducing the shaking of the upper connector 3.

[0025] Example 3

[0026] Please see Figures 4-5In this embodiment, the left end of the locking block 11 is fixedly connected to the upper connector 3. The center of the right end of the upper connector 3 is provided with a through hole 12. In use, the upper connector 3 can be limited and fixed by the locking block 11 and the locking groove 6. The through hole 12 can be used to store and guide the wire, so that the wire is brought out from the inside of the main frame 1 and the inside of the upper connector 3, which improves the protection of the wire and further avoids the wire from being messy. The center of the left end of the main frame 1 is provided with a cable routing hole 7. The cable routing hole 7 corresponds one-to-one with the through hole 12. In use, the wire in the support frame 2 can be guided into the upper connector 3 through the cable routing hole 7 and the through hole 12, which protects the wire and allows the wire to be connected to the upper connector from the inside of the main frame 1, avoiding the wire from being exposed and causing the wire to age and wear faster.

[0027] Example 4

[0028] Please see Figure 5 In this embodiment, a third threaded hole 8 is provided through one end of the slot 6 that is far apart from each other, and a fourth threaded hole 13 is provided through both the upper and lower ends of the block 11. A screw 9 is installed in the third threaded hole 8. In use, the upper connector 3 can be fixed to the left end of the main frame 1 by the screw 9 in conjunction with the third threaded hole 8 and the fourth threaded hole 13, which improves the reliability of the connection and thus improves the stability of the upper connector 3 during operation. The screw 9 passes through the third threaded hole 8 and is threaded in the fourth threaded hole 13. A mounting post 10 is fixed to the center of the right end of the main frame 1. The mounting post 10 is connected to the acoustic connector 4 through an O-ring. In use, the upper connector 3, which is fixed by the screw 9, can be easily disassembled and installed. The mounting post 10 can support the acoustic connector 4. With the help of the O-ring, the acoustic connector 4 can be fixedly installed on the right end of the main frame 1. The O-ring can ensure the stability of the acoustic connector 4 while facilitating the installation and disassembly of the acoustic connector 4, thus facilitating the disassembly and maintenance of the acoustic connector 4 and the upper connector 3.

[0029] During operation, firstly, place the transformer on the upper end of the support plate 202 and the inner wall of the support frame 204 respectively, align the fixing holes on the transformer with the corresponding threaded holes, and use bolts to pass through the fixing holes of the transformer and thread them into the first threaded hole 203 and the second threaded hole 206, so that the transformer is fixed on the corresponding support plate 202 and support frame 204, thus completing the fixing of the transformer. Next, rotate the terminal block and install it in the terminal hole 207, and connect the transformer's connecting wires through the terminal block. Then, store all the through wires in the slot 5 and pass them through the cable routing hole 7, thus completing the transformer connection. First, connect and arrange the cable. Then, align the locking block 11 with the slot 6, push the upper connector 3 so that the locking block 11 engages with the slot 6 and the third threaded hole 8 aligns with the fourth threaded hole 13. Then, thread the screw 9 through the third threaded hole 8 into the fourth threaded hole 13. After fixing the upper connector 3, let the through wire pass through the through hole 12 into the upper connector 3 and connect the cable to the corresponding wiring to complete the installation of the transformer cable. Finally, use an O-ring to fix the acoustic connector 4 onto the mounting post 10. After fixing the acoustic connector, the above device can be installed at the required working position to perform acoustic logging work.

[0030] Through the above steps, the support plate 202 can support the transformer. The first threaded hole 203 at the upper end of the support plate 202 can be used with bolts to limit and fix the transformer on the support plate 202. The inner wall of the support frame 204 can support the transformer. The second threaded hole 206 on the fixing plate 205 can be used with bolts to limit and fix the transformer in the support frame 204. The wiring hole 207 can be used to install the terminal block to connect the transformer's connection line. The main frame 1 and the support frame 2 are made of 2A12 steel. The support frame 2, which is integrally fixed in the main frame 1, can ensure the strength during operation. This solves the problem that the splicing structure of the sonic logging tool's transmitting transformer skeleton is not strong enough during use and is relatively cumbersome during disassembly and maintenance.

Claims

1. An integrated structure for the transmitting transformer frame of an array acoustic logging tool, comprising a main frame (1) and a support frame (2), characterized in that: Support frames (2) are fixed to the inner walls of the front and rear ends of the main frame (1). The support frames (2) are composed of support blocks (201), support plates (202), and support frames (204). The support blocks (201) are fixed to the center of the inner walls of the front and rear ends of the main frame (1). The left and right ends of the support blocks (201) are fixed with symmetrically distributed support plates (202). The four corner edges of the support plates (202) are all provided with first threaded holes (203). 202) A symmetrical support frame (204) is fixed to one end of the support frame (204) and a fixing plate (205) is fixed to the lower end of the support frame (204). A symmetrical second threaded hole (206) is opened through the upper end of the fixing plate (205). The lower ends of the support block (201), the support plate (202) and the support frame (204) are flush. Several wiring holes (207) are opened at the upper ends of the support block (201) and the support frame (204).

2. The integrated structure of the transmitting transformer skeleton of the array acoustic logging tool according to claim 1, characterized in that: The inner walls at both ends of the main frame (1) are provided with grooves (5), which are located on the upper side of the support frame (2).

3. The integrated structure of the transmitting transformer skeleton of the array acoustic logging tool according to claim 2, characterized in that: The left end of the main frame (1) is provided with a symmetrical slot (6) with a locking block (11) sliding inside the slot (6).

4. The integrated structure of the transmitting transformer skeleton of the array acoustic logging tool according to claim 3, characterized in that: The left end of the card block (11) is fixedly connected to the upper connector (3), and the right end of the upper connector (3) has a through hole (12) through it.

5. The integrated structure of the transmitting transformer skeleton of the array acoustic logging tool according to claim 4, characterized in that: A cable routing hole (7) is provided through the center of the left end of the main frame (1), and the cable routing hole (7) corresponds one-to-one with the through hole (12).

6. The integrated structure of the transmitting transformer skeleton of the array acoustic logging tool according to claim 3, characterized in that: The slot (6) has a third threaded hole (8) through one end that is far apart from each other, and the upper and lower ends of the block (11) have a fourth threaded hole (13) through. The screw (9) is installed in the internal thread of the third threaded hole (8).

7. The integrated structure of the transmitting transformer skeleton of the array acoustic logging tool according to claim 6, characterized in that: The screw (9) passes through the third threaded hole (8) and is threaded into the fourth threaded hole (13). The mounting post (10) is fixed to the center of the right end of the main frame (1). The mounting post (10) is connected to the acoustic connector (4) through an O-ring.