CN217813445U - Self-balancing metal bellows acoustic logging device - Google Patents
Self-balancing metal bellows acoustic logging device Download PDFInfo
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- CN217813445U CN217813445U CN202221426864.6U CN202221426864U CN217813445U CN 217813445 U CN217813445 U CN 217813445U CN 202221426864 U CN202221426864 U CN 202221426864U CN 217813445 U CN217813445 U CN 217813445U
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Abstract
The utility model discloses a self-balancing corrugated metal pipe sound wave logging device, including the tubulose shell, the one end of shell is the transmitting transducer, and the other end is for receiving the transducer, still sets up sound insulation stand pipe and balanced corrugated metal pipe between transmitting transducer and receiving transducer, and balanced corrugated metal pipe cover is established on the sound insulation stand pipe to be full of silicon oil between balanced corrugated metal pipe and sound insulation stand pipe, balanced corrugated metal pipe divide into two sections, and one section is big corrugated metal pipe, and another section is little corrugated metal pipe, and is big, connect through the bellows connector between the little corrugated metal pipe. The utility model discloses a corrugated metal pipe sound wave logging device of pressure inside and outside self-balancing, balanced corrugated metal pipe place between transmitting transducer and receiving transducer, do not occupy instrument length, have simultaneously and keep apart direct ripples and balanced fluid volume change two kinds of functions concurrently.
Description
Technical Field
The utility model belongs to sound wave logging device field, in particular to self-balancing corrugated metal pipe sound wave logging device in this field.
Background
The acoustic logging is one of the most widely applied technologies in various geophysical logging, and the technology utilizes the full-wave record of the speed and amplitude of acoustic waves when the acoustic waves are propagated in different media to obtain corresponding geological features for researching and solving geological problems, so that mineral resources such as oil gas, coal, metal, nonmetal, radioactivity, underground water and the like can be found. Along with the increase of the exploration depth, the underground temperature and pressure are continuously increased, the well condition is more complex,
the existing capsule type acoustic logging instrument is mainly characterized in that devices such as a transformer, a transmitting transducer, a receiving transducer and the like of the acoustic logging instrument are filled into a capsule through a groove connecting pipe, two ends of the capsule are fastened through stainless steel wires, and silicone oil is injected through an oil injection port to balance the internal pressure and the external pressure of the capsule. Because the capsule has better elasticity under specific conditions, silicone oil in the instrument cannot be burst when expanding in the well logging process, but the capsule is easy to be punctured when the well condition is not good, oil leakage of the instrument occurs, mud is filled into the instrument, and the instrument is damaged. The capsule has certain air permeability, and particularly when corrosive gases containing hydrogen sulfide and the like are encountered in well logging, a large amount of corrosive gases can permeate into the capsule, external pressure is lost after the corrosive gases are discharged out of a well, the corrosive gases in the capsule cannot be discharged, the capsule is easily broken or the elasticity is lost, and an instrument is damaged.
Therefore, the traditional capsule type acoustic logging instrument cannot meet the logging requirements under high temperature and high pressure, particularly under the environment of corrosive gas containing hydrogen sulfide and the like, and the capsule is easy to crack, lose elasticity, age and the like after being discharged, so that the reliability of the instrument is reduced, and the maintenance cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a self-balancing corrugated metal pipe sound wave logging device is provided for replace traditional capsule formula sound wave instrument, solved the capsule formula sound wave instrument can not resist high temperature and corrosion resistant scheduling problem.
The utility model adopts the following technical scheme:
a self-balancing metal bellows acoustic logging device, its improvement lies in: the balance metal corrugated pipe is divided into two sections, one section is a large corrugated pipe, the other section is a small corrugated pipe, and the large corrugated pipe and the small corrugated pipe are connected through a corrugated pipe connector.
Further, the balance metal corrugated pipe is a stainless steel pipe or a nickel-based alloy pipe.
Furthermore, the large corrugated pipe is fixed with the transmitting transducer or the receiving transducer through the large corrugated pipe joint, and the small corrugated pipe is fixed with the transmitting transducer or the receiving transducer through the small end flange.
Furthermore, a notch groove is arranged on the surface of the sound insulation guide pipe.
The utility model has the advantages that:
the utility model discloses a corrugated metal pipe sound wave logging device of internal and external pressure of self-balancing, balanced corrugated metal pipe places between transmitting transducer and receiving transducer, instrument length is not taken, have simultaneously and keep apart direct ripples and two kinds of functions of balanced fluid volume change concurrently, balanced corrugated metal pipe's sealed more reliable than the sealed of capsule, can guarantee that the fluid system seals, avoid the oil leak, and the corrugated metal pipe material chooses for use extensively moreover, corrosion resistance is strong, high strength, can adapt to high temperature, high pressure and corrosive environment, the reliability and the life of instrument have been improved greatly, the maintenance cost of instrument has been reduced. Compared with the traditional capsule type acoustic wave instrument, the problems that the capsule type acoustic wave instrument cannot resist high temperature and high pressure, is easy to be punctured by hard objects, cannot resist corrosion and the like in well logging are solved.
Drawings
Fig. 1 is a schematic structural diagram of a device disclosed in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a balance metal corrugated pipe in the device disclosed in embodiment 1 of the present invention;
FIG. 3 is a schematic structural diagram of a sound insulation guide pipe in the device disclosed in embodiment 1 of the present invention;
fig. 4 is a schematic diagram of the surface grooving of the sound insulation guide pipe in the device disclosed in embodiment 1 of the invention.
Reference numerals: 1-transmitting transducer, 2-balance metal corrugated pipe, 3-shell, 4-corrugated pipe connector, 5-sound insulation guide pipe, 6-receiving transducer, 21-large corrugated pipe connector, 22-large corrugated pipe, 24-small corrugated pipe and 25-small end flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1, as shown in fig. 1, this embodiment discloses a self-balancing metal bellows acoustic logging device, which includes a tubular housing 3, and the housing is used to support devices such as the following balancing metal bellows and to connect with other instruments. One end of the shell is a transmitting transducer 1, the other end of the shell is a receiving transducer 6, a sound insulation guide pipe 5 and a balance metal corrugated pipe 2 are further arranged between the transmitting transducer and the receiving transducer, the balance metal corrugated pipe is sleeved on the sound insulation guide pipe, silicone oil is filled between the balance metal corrugated pipe and the sound insulation guide pipe, the balance metal corrugated pipe plays a role in sound insulation and compensation of volume change of oil, and the sound insulation guide pipe is used for righting and supporting the metal corrugated pipe.
As shown in fig. 2, the balance metal corrugated pipe is divided into two sections, one section is a large corrugated pipe 22, the other section is a small corrugated pipe 24, and the large corrugated pipe and the small corrugated pipe are connected through a corrugated pipe connector 4. The large corrugated pipe is fixed with the transmitting transducer through a large corrugated pipe joint 21, and the small corrugated pipe is fixed with the receiving transducer through a small end flange 25.
The balance metal corrugated pipe material can be selected from stainless steel pipes or nickel-based alloy pipes and the like according to different use environments, and can play a good anti-corrosion role.
As shown in fig. 3 and 4, the surface of the sound insulation guide pipe is provided with a notch groove, the notch groove can attenuate and delay direct waves passing through the pipe body of the sound insulation guide pipe, and a lead is arranged inside the sound insulation guide pipe.
When the balance metal corrugated pipe is used, two ends of the balance metal corrugated pipe are fixed, and the corrugated pipe connector can move towards the direction of a large corrugated pipe or the direction of a small corrugated pipe under the condition of temperature and pressure change so as to compensate the volume change of the silicon oil. Specifically, when the volume of the silicone oil in the corrugated pipe expands, the large corrugated pipe extends, the small corrugated pipe shortens, the corrugated pipe connector moves towards the small corrugated pipe, and the volume of the corrugated pipe is increased to maintain the balance of internal pressure and external pressure; when the silicone oil in the corrugated pipe is compressed, the large corrugated pipe is shortened, the small corrugated pipe is extended, the corrugated pipe connector moves towards the large corrugated pipe, and the volume of the corrugated pipe is reduced to maintain the balance of internal pressure and external pressure; meanwhile, the continuous change of the section of the corrugated pipe also attenuates and delays the direct wave reaching the receiving crystal through the corrugated pipe, and the sound insulation requirement of the device is met.
Claims (4)
1. The utility model provides a self-balancing metal bellows acoustic logging device which characterized in that: the balance metal corrugated pipe is divided into two sections, one section is a large corrugated pipe, the other section is a small corrugated pipe, and the large corrugated pipe and the small corrugated pipe are connected through a corrugated pipe connector.
2. The self-balancing metal bellows sonic logging device of claim 1, wherein: the balance metal corrugated pipe is a stainless steel pipe or a nickel-based alloy pipe.
3. The self-balancing metal bellows sonic logging device of claim 1, wherein: the large corrugated pipe is fixed with the transmitting transducer or the receiving transducer through the large corrugated pipe joint, and the small corrugated pipe is fixed with the transmitting transducer or the receiving transducer through the small end flange.
4. The self-balancing metal bellows sonic logging device of claim 1, wherein: the surface of the sound insulation guide pipe is provided with a notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221426864.6U CN217813445U (en) | 2022-06-09 | 2022-06-09 | Self-balancing metal bellows acoustic logging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221426864.6U CN217813445U (en) | 2022-06-09 | 2022-06-09 | Self-balancing metal bellows acoustic logging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217813445U true CN217813445U (en) | 2022-11-15 |
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ID=83989763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221426864.6U Active CN217813445U (en) | 2022-06-09 | 2022-06-09 | Self-balancing metal bellows acoustic logging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217813445U (en) |
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2022
- 2022-06-09 CN CN202221426864.6U patent/CN217813445U/en active Active
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