CN221041724U - Universal mechanical interface for downhole instrument - Google Patents
Universal mechanical interface for downhole instrument Download PDFInfo
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- CN221041724U CN221041724U CN202322800319.XU CN202322800319U CN221041724U CN 221041724 U CN221041724 U CN 221041724U CN 202322800319 U CN202322800319 U CN 202322800319U CN 221041724 U CN221041724 U CN 221041724U
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- 230000001681 protective effect Effects 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a universal mechanical interface of an underground instrument, which relates to the field of underground instruments for exploration and logging, and comprises an upper universal interface, a lower universal interface and a lower universal interface, wherein the upper universal interface comprises an upper mechanical connecting piece and an upper electric connecting piece; the lower end universal interface comprises a lower end mechanical connecting piece and a lower end electric connecting piece, wherein the lower end mechanical connecting piece is used for mechanically connecting an instrument string positioned at the lower end of the underground instrument, and the lower end electric connecting piece is used for electrically connecting the instrument string positioned at the lower end of the underground instrument; and one end of the connecting line is arranged in the upper mechanical connecting piece, the other end of the connecting line is arranged in the lower mechanical connecting piece, and the upper electrical connecting piece and the lower electrical connecting piece are electrically connected through the connecting line. The utility model can ensure the high-strength reliable connection and long-time continuous operation of the underground measuring instrument in an absolute pressure environment of 170MPa at a high temperature of 200 ℃.
Description
Technical Field
The utility model relates to the field of downhole instruments for exploration logging, in particular to a universal mechanical interface of a downhole instrument.
Background
Along with the development of logging technology, on the premise of meeting the cable direct-reading logging operation, the logging operation of a horizontal well, a highly-inclined well and a deep well is further realized through various storage logging modes, and the logging operation is suitable for more and more complex underground environments encountered in the exploration logging process. The multi-mode logging system needs a universal mechanical interface for the downhole instrument and logging operation, realizes high-strength connection of various downhole instruments such as sound, electricity, nuclear, magnetism and the like and logging auxiliary tools, meets the high-speed communication of downhole instrument data, realizes sealing and long-time continuous working of the downhole instruments in a high-temperature and high-pressure environment, and assists the logging system to complete various logging modes.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a universal interface for mechanical connection of downhole instruments of a multi-mode exploration and detection well system, which can ensure high-strength reliable connection and long-time continuous operation of the downhole measuring instruments in an absolute pressure environment of 170MPa at a high temperature of 200 ℃, is convenient for the high-efficiency connection of the instruments at a well head, is convenient to operate, and assists a logging system to realize various logging operation modes.
The utility model aims at being completed by the following technical scheme: such a downhole tool universal mechanical interface comprises:
The upper end universal interface comprises an upper end mechanical connecting piece and an upper end electric connecting piece, wherein the upper end electric connecting piece is arranged in the upper end mechanical connecting piece and used for mechanically connecting an instrument string positioned at the upper end of the underground instrument;
The lower end universal interface comprises a lower end mechanical connector and a lower end electric connector arranged in the lower end mechanical connector, wherein the lower end mechanical connector is used for mechanically connecting an instrument string positioned at the lower end of the underground instrument, and the lower end electric connector is used for electrically connecting the instrument string positioned at the lower end of the underground instrument; and
And one end of the connecting line is arranged in the upper mechanical connecting piece, the other end of the connecting line is arranged in the lower mechanical connecting piece, and the upper electric connecting piece and the lower electric connecting piece are electrically connected through the connecting line.
As a further technical scheme, the upper mechanical connecting piece comprises an upper joint, wherein one end of the upper joint is provided with a threaded ring A, and the other end of the upper joint is provided with a threaded ring B; the upper end electrical connector comprises a multicore socket A arranged at the end of the upper connector.
As a further technical scheme, the lower end mechanical connector comprises a pressure-bearing shell, and the lower end electrical connector comprises a multi-core pressure-bearing plug arranged at the end part of the pressure-bearing shell.
As a further technical scheme, the connecting circuit comprises a framework arranged in the pressure-bearing shell, a multi-core connector arranged at one end of the framework and a multi-core socket B arranged at the other end of the framework, one end of the multi-core connector is electrically connected with the multi-core socket A, the other end of the multi-core connector is electrically connected with the framework through a wire, and the multi-core socket B is used for electrically connecting the multi-core pressure-bearing plug.
As a further technical scheme, the skeleton slides through compression spring towards the one end of multicore connector and sets up the gland, and the terminal surface and the upper joint cooperation of gland form inclined plane righting structure for keep connecting line to center, compression spring applys axial pressure to connecting line.
As a further technical scheme, the well logging instrument comprises an upper protective cap, a well logging instrument A and a lower protective cap, wherein an upper joint between the upper protective cap and the well logging instrument A is used as a connecting interface, a pressure-bearing shell is sleeved outside the well logging instrument A, the upper joint is in threaded connection with the upper protective cap through a threaded ring A, and the upper joint is also in threaded connection with the pressure-bearing shell through a threaded ring B.
As a further technical scheme, the pressure-bearing shell of the logging instrument A is in threaded connection with the lower protective cap, and the pressure-bearing shell and the lower protective cap are sealed through the sealing ring B.
As a further technical scheme, the well logging instrument B is further provided with a well logging instrument A, an upper joint between the well logging instrument A and the well logging instrument B is used as a connecting interface, a pressure-bearing shell is sleeved outside the well logging instrument B, the pressure-bearing shell is in threaded connection with the lower protective cap, and the pressure-bearing shell and the lower protective cap are sealed through a sealing ring B; the multi-core pressure-bearing plug at the lower end of the logging instrument A is matched with the upper joint on the logging instrument B through a key slot to realize the circumferential orientation of the two instruments, the threaded ring A on the logging instrument B is in threaded connection with the pressure-bearing shell on the logging instrument A, and meanwhile, the multi-core pressure-bearing plug at the lower end of the logging instrument A is electrically connected with the multi-core socket on the logging instrument B.
As a further technical scheme, a sealing ring A is arranged on the outer wall of the upper joint, and a high-temperature and high-pressure sealing structure between instruments is formed by a pressure-bearing shell on the logging instrument A, the upper joint on the logging instrument B and the sealing ring A; the multi-core socket A at the upper end of the logging instrument A sequentially forms an electric connection channel with the multi-core connector, the lead, the framework, the multi-core socket B and the multi-core pressure-bearing plug at the lower end of the line.
As a further technical scheme, offer the chuck position of being convenient for the centre gripping on the top connection, multicore pressure-bearing plug passes through the circlip location on pressure-bearing shell.
The beneficial effects of the utility model are as follows:
1. The upper and lower ends of the interface are respectively connected mechanically and electrically, so that different logging instruments or instrument sections can be connected by means of a universal interface to form a combined string of the downhole logging instruments, and the combined string is suitable for cable direct-reading testing and various storage logging processes;
2. The pressure-bearing shell on the logging instrument A, the upper joint on the logging instrument B and the sealing ring A form a high-temperature high-pressure sealing structure among instruments, so that the high-strength reliable and quick connection and long-time continuous operation of the underground measuring instrument can be ensured under the absolute pressure environment of 170MPa at the high temperature of 200 ℃ to connect functional instruments such as acousto-electric nuclear magnetism and the like with auxiliary instruments to form different test strings;
3. The multicore pressure-bearing plug at the lower end of the logging instrument A is matched with the upper joint on the logging instrument B through a key slot to realize the circumferential orientation of the two instruments, so that circumferential rotation is prevented;
4. the connecting line is kept centered by an inclined plane centralizing structure formed by the cooperation of the end face of the gland and the upper joint, so that the connecting line is prevented from being deviated, and the compression spring applies axial pressure to the connecting line to resist impact and vibration;
5. The pressure-bearing shell is mechanically connected with the upper joint and the threaded ring at the upper end and the lower end of the logging instrument in a high-strength manner, so that underground fluid is isolated, and the internal devices of a circuit or the instrument are protected.
Drawings
FIG. 1 is a schematic diagram of the present utility model in connection with a logging instrument A, B.
FIG. 2 is a schematic diagram of the present utility model when connected to a logging instrument A.
Fig. 3 is a schematic cross-sectional view of fig. 2.
FIG. 4 is a schematic cross-sectional view of the junction interface between the logging instruments A, B of FIG. 1.
Fig. 5 is a schematic structural diagram of a connection circuit in the present utility model.
Fig. 6 is a cross-sectional view A-A of fig. 5.
Reference numerals illustrate: the well logging instrument comprises an upper protective cap 1, a well logging instrument A2, a connecting interface 3, a well logging instrument B4, a lower protective cap 5, a connecting line 6, a threaded ring A2-1, an upper joint 2-2, a threaded ring B2-3, a multi-core socket A2-4, a sealing ring A2-5, a pressure-bearing shell 2-6, a multi-core pressure-bearing plug 2-7, a circlip 2-8, a sealing ring B2-9, a chuck position 3-1, an inclined plane righting structure 3-2, a gland 6-1, a framework 6-2, a multi-core socket B6-3, a multi-core connector 6-4, a lead 6-5 and a compression spring 6-6.
Detailed Description
The utility model will be described in detail below with reference to the attached drawings:
Examples: as shown in figures 1-6, the universal mechanical interface for the downhole instrument comprises an upper protective cap 1, a logging instrument A2, a connecting interface 3, a logging instrument B4, a lower protective cap 5, a connecting line 6, a threaded ring A2-1, an upper joint 2-2, a threaded ring B2-3, a multi-core socket A2-4, a sealing ring A2-5, a pressure-bearing shell 2-6, a multi-core pressure-bearing plug 2-7, a circlip 2-8, a sealing ring B2-9, a chuck position 3-1, an inclined plane centralizing structure 3-2, a gland 6-1, a framework 6-2, a multi-core socket B6-3, a multi-core connector 6-4, a lead 6-5 and a compression spring 6-6.
As shown in fig. 2 and 3, the upper joint 2-2 is used as an upper mechanical connecting piece, the left end of the upper joint 2-2 is provided with a threaded ring A2-1, and the right end of the upper joint 2-2 is provided with a threaded ring B2-3; the left end part of the upper joint 2-2 is internally provided with a multi-core socket A2-4 as an upper end electric connecting piece, and the upper end mechanical connecting piece and the upper end electric connecting piece jointly form an upper end universal interface. The upper end mechanical connector is used for mechanically connecting the instrument string positioned at the upper end of the underground instrument, and the upper end electrical connector is used for electrically connecting the instrument string positioned at the upper end of the underground instrument. Further, the upper protective cap 1 and the logging instrument A2 take an upper joint 2-2 between the upper protective cap 1 and the logging instrument A2 as a connecting interface 3, a pressure-bearing shell 2-6 is sleeved outside the logging instrument A2, the upper joint 2-2 is in threaded connection with the upper protective cap 1 through a threaded ring A2-1, and the upper joint 2-2 is also in threaded connection with the pressure-bearing shell 2-6 through a threaded ring B2-3. Further, the pressure-bearing shell 2-6 is used as a lower mechanical connector, the right end part of the pressure-bearing shell 2-6 is internally provided with the multi-core pressure-bearing plug 2-7, and the multi-core pressure-bearing plug is used as a lower electrical connector, and the lower mechanical connector and the lower electrical connector jointly form a lower universal interface. The lower end mechanical connector is used for mechanically connecting the instrument string positioned at the lower end of the underground instrument, and the lower end electrical connector is used for electrically connecting the instrument string positioned at the lower end of the underground instrument. The pressure-bearing shell 2-6 of the logging instrument A2 is in threaded connection with the lower protective cap 5, and the pressure-bearing shell and the lower protective cap are sealed through a sealing ring B2-9.
Referring to fig. 3, 5 and 6, the left end of the connection line 6 is placed in the upper mechanical connector (upper connector 2-2), and the right end of the connection line 6 is placed in the lower mechanical connector (pressure-bearing housing 2-6), so that the upper electrical connector (multi-core socket A2-4) and the lower electrical connector (multi-core pressure-bearing plug 2-7) are electrically connected through the connection line 6. Further, the connecting line 6 comprises a framework 6-2 arranged in the pressure-bearing shell 2-6, a multi-core connector 6-4 arranged at the left end of the framework 6-2 and a multi-core socket B6-3 arranged at the right end of the framework 6-2, wherein the left end of the multi-core connector 6-4 is electrically connected with the multi-core socket A2-4, the right end of the multi-core connector 6-4 is electrically connected with the framework 6-2 through a wire 6-5, and the multi-core socket B6-3 is used for electrically connecting the multi-core pressure-bearing plug 2-7. Preferably, a gland 6-1 is slidably arranged at the left end of the framework 6-2 (i.e. the end facing the multi-core connector 6-4) through a compression spring 6-6, the end face of the gland 6-1 is matched with the upper joint 2-2 to form a bevel centralizing structure 3-2, the connecting line 6 can be kept centered during assembly, the connecting line 6 is prevented from being deflected, and meanwhile, the compression spring 6-6 is used for applying axial pressure to the connecting line 6 to resist impact and vibration.
As shown in fig. 1 and 4, a logging instrument B4 is added on the basis of a logging instrument A2, the logging instrument A2 and the logging instrument B4 take an upper joint 2-2 between the logging instrument A2 and the logging instrument B4 as a connecting interface 3, a pressure-bearing shell 2-6 is sleeved outside the logging instrument B4, the pressure-bearing shell 2-6 is in threaded connection with a lower protective cap 5, and the pressure-bearing shell 2-6 and the lower protective cap are sealed through a sealing ring B2-9. The multi-core pressure-bearing plug 2-7 at the lower end of the logging instrument A2 is matched with the upper joint 2-2 on the logging instrument B4 through a key slot to realize the circumferential orientation of the two instruments, so that the circumferential rotation is prevented. The threaded ring A2-1 on the logging instrument B4 is in threaded connection with the pressure-bearing shell 2-6 on the logging instrument A2, and meanwhile, the multicore pressure-bearing plug 2-7 at the lower end of the logging instrument A2 is electrically connected with the multicore socket 2-4 on the logging instrument B4. Further, the sealing ring A2-5 is arranged on the outer wall of the upper joint 2-2, the pressure-bearing shell 2-6 on the logging instrument A2, the upper joint 2-2 on the logging instrument B4 and the sealing ring A2-5 form a high-temperature high-pressure sealing structure among instruments, so that the high-strength, reliable and quick connection and long-time continuous operation of the underground measuring instrument can be ensured under the absolute pressure environment of 170MPa at the high temperature of 200 ℃, and the acoustic, electric, nuclear and magnetic functional instruments and auxiliary instruments are connected to form different test strings. The multi-core socket A2-4 at the upper end of the logging instrument A2 sequentially forms an electric connection channel with the multi-core connector 6-4, the lead 6-5, the framework 6-2, the multi-core socket B6-3 and the multi-core pressure-bearing plug 2-7 at the lower end of the line 6. Preferably, a chuck position 3-1 which is convenient to clamp is arranged on the upper joint 2-2, and the multi-core pressure-bearing plug 2-7 is positioned on the pressure-bearing shell 2-6 through the elastic retainer ring 2-8.
The working process of the utility model comprises the following steps:
When the well is measured by exploration, the cable direct reading or the storage well measuring mode is determined according to the well condition and the well measuring requirement, different functional instruments and auxiliary instruments are combined into a well instrument string through uniform passing interfaces, and different well measuring combinations are realized.
In the logging process, at the wellhead, the upper protective cap 1 and the lower protective cap 5 on the instrument (figure 2) are removed, an auxiliary tool is matched with the chuck position 3-1 on the logging instrument B4, the logging instrument B4 is fixed, the logging instrument A2 and the logging instrument B4 are matched through threaded connection, and then the logging instrument A2 and the logging instrument B4 are assembled into a connecting interface 3 to form an instrument string, as shown in figure 1. And the multifunctional instruments and the auxiliary instruments are sequentially connected to form a downhole instrument measurement string.
The instrument strings are reliably sealed and axially connected through a threaded ring A2-1, an upper joint 2-2, a threaded ring B2-3, a multi-core socket 2-4, a sealing ring A2-5, a pressure-bearing shell 2-6, a multi-core pressure-bearing plug 2-7, a circlip 2-8 and a sealing ring B2-9, as shown in figure 4.
In the instrument connection process, the multicore pressure-bearing plug 2-7 at the lower end of the logging instrument A2 is matched with the upper joint 2-2 on the logging instrument B4 through a key slot to ensure the circumferential orientation of the two instruments; the threaded ring A2-1 on the rotary logging instrument B4 is in threaded connection with the pressure-bearing shell 2-6 on the logging instrument A2, and meanwhile, the multi-core pressure-bearing plug 2-7 at the lower end of the logging instrument A2 is electrically connected with the multi-core socket 2-4 on the logging instrument B4; the pressure-bearing shell 2-6 on the logging instrument A2, the upper joint 2-2 and the sealing ring 2-5 on the logging instrument B4 form high-temperature high-pressure sealing between instruments.
The multi-core socket 2-4 at the upper end of the logging instrument A2 (figure 3) forms an electric connection channel with the multi-core socket 6-3, the lead 6-5, the framework 6-2, the multi-core connector 6-4 and the multi-core pressure-bearing plug 2-7 at the lower end on the line 6 in sequence; the upper joint 2-2 at the upper end and the gland 6-1 form an inclined plane righting structure 3-2, so that the connecting line 6 is centered; the compression spring 6-6 axially presses the connecting line 6 to resist impact and vibration; the pressure-bearing shell 2-6 is mechanically connected with the upper joint 2-2 and the threaded ring B2-3 at high strength at the upper end and the lower end of the logging instrument, isolates underground fluid and protects circuits or internal devices of the instrument.
The electrical and mechanical connection between the upper and lower ends of the logging instrument are displayed in other modes according to the instrument characteristics, but the interface structures at the upper and lower ends must meet the general interface requirements, so that different combinations of the underground instrument strings are realized.
It should be understood that equivalents and modifications to the technical scheme and the inventive concept of the present utility model should fall within the scope of the claims appended hereto.
Claims (10)
1. A downhole tool universal mechanical interface comprising:
The upper end universal interface comprises an upper end mechanical connecting piece and an upper end electric connecting piece, wherein the upper end electric connecting piece is arranged in the upper end mechanical connecting piece and used for mechanically connecting an instrument string positioned at the upper end of the underground instrument;
The lower end universal interface comprises a lower end mechanical connector and a lower end electric connector arranged in the lower end mechanical connector, wherein the lower end mechanical connector is used for mechanically connecting an instrument string positioned at the lower end of the underground instrument, and the lower end electric connector is used for electrically connecting the instrument string positioned at the lower end of the underground instrument; and
And one end of the connecting line (6) is arranged in the upper mechanical connecting piece, the other end of the connecting line is arranged in the lower mechanical connecting piece, and the upper electric connecting piece and the lower electric connecting piece are electrically connected through the connecting line (6).
2. The downhole tool universal mechanical interface of claim 1, wherein: the upper mechanical connecting piece comprises an upper joint (2-2), one end of the upper joint (2-2) is provided with a threaded ring A (2-1), and the other end of the upper joint (2-2) is provided with a threaded ring B (2-3); the upper end electrical connector comprises a multi-core socket A (2-4) arranged at the end part of the upper connector (2-2).
3. The downhole tool universal mechanical interface of claim 2, wherein: the lower end mechanical connector comprises a pressure-bearing shell (2-6), and the lower end electrical connector comprises a multi-core pressure-bearing plug (2-7) arranged at the end part of the pressure-bearing shell (2-6).
4. A downhole tool universal mechanical interface according to claim 3, wherein: the connecting circuit (6) comprises a framework (6-2) arranged in the pressure-bearing shell (2-6), a multi-core connector (6-4) arranged at one end of the framework (6-2) and a multi-core socket B (6-3) arranged at the other end of the framework (6-2), one end of the multi-core connector (6-4) is electrically connected with the multi-core socket A (2-4), the other end of the multi-core connector (6-4) is electrically connected with the framework (6-2) through a wire (6-5), and the multi-core socket B (6-3) is used for electrically connecting the multi-core pressure-bearing plug (2-7).
5. The downhole tool universal mechanical interface of claim 4, wherein: one end of the framework (6-2) facing the multi-core connector (6-4) is provided with a gland (6-1) in a sliding way through a compression spring (6-6), the end face of the gland (6-1) is matched with the upper joint (2-2) to form an inclined plane righting structure (3-2) for maintaining the centering of the connecting line (6), and the compression spring (6-6) applies axial pressure to the connecting line (6).
6. The downhole tool universal mechanical interface of claim 5, wherein: the well logging device comprises a well logging device A, a pressure-bearing shell (2-6) sleeved outside the well logging device A (2), an upper protective cap (1), a well logging instrument A (2) and a lower protective cap (5), wherein the upper protective cap (1) and the well logging instrument A (2) are connected through an upper joint (2-2) in a threaded mode, and the upper joint (2-2) is connected with the pressure-bearing shell (2-6) through a threaded ring A (2-1) in a threaded mode.
7. The downhole tool universal mechanical interface of claim 6, wherein: the pressure-bearing shell (2-6) of the logging instrument A (2) is in threaded connection with the lower protective cap (5), and the pressure-bearing shell and the lower protective cap are sealed through the sealing ring B (2-9).
8. The downhole tool universal mechanical interface of claim 6, wherein: the well logging instrument B (4) is also included, an upper joint (2-2) between the well logging instrument A (2) and the well logging instrument B (4) is used as a connecting interface (3), a pressure-bearing shell (2-6) is sleeved outside the well logging instrument B (4), the pressure-bearing shell (2-6) is in threaded connection with the lower protective cap (5), and the pressure-bearing shell and the lower protective cap are sealed through a sealing ring B (2-9); the multi-core pressure-bearing plug (2-7) at the lower end of the logging instrument A (2) is matched with the upper joint (2-2) on the logging instrument B (4) through a key slot to realize the circumferential orientation of the two instruments, the threaded ring A (2-1) on the logging instrument B (4) is in threaded connection with the pressure-bearing shell (2-6) on the logging instrument A (2), and meanwhile the multi-core pressure-bearing plug (2-7) at the lower end of the logging instrument A (2) is electrically connected with the multi-core socket A (2-4) on the logging instrument B (4).
9. The downhole tool universal mechanical interface of claim 8, wherein: a sealing ring A (2-5) is arranged on the outer wall of the upper joint (2-2), and a high-temperature and high-pressure sealing structure between instruments is formed by a pressure-bearing shell (2-6) on the logging instrument A (2), the upper joint (2-2) on the logging instrument B (4) and the sealing ring A (2-5); the multi-core socket A (2-4) at the upper end of the logging instrument A (2) and the multi-core connector (6-4), the lead (6-5), the framework (6-2), the multi-core socket B (6-3) and the multi-core pressure-bearing plug (2-7) at the lower end of the logging instrument A (2) form an electric connection channel in sequence.
10. The downhole tool universal mechanical interface of claim 9, wherein: the upper joint (2-2) is provided with a chuck position (3-1) which is convenient to clamp, and the multi-core pressure-bearing plug (2-7) is positioned on the pressure-bearing shell (2-6) through the elastic retainer ring (2-8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800319.XU CN221041724U (en) | 2023-10-18 | 2023-10-18 | Universal mechanical interface for downhole instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800319.XU CN221041724U (en) | 2023-10-18 | 2023-10-18 | Universal mechanical interface for downhole instrument |
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| Publication Number | Publication Date |
|---|---|
| CN221041724U true CN221041724U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322800319.XU Active CN221041724U (en) | 2023-10-18 | 2023-10-18 | Universal mechanical interface for downhole instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221041724U (en) |
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2023
- 2023-10-18 CN CN202322800319.XU patent/CN221041724U/en active Active
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