CN210422591U - Flexible short circuit of logging instrument - Google Patents
Flexible short circuit of logging instrument Download PDFInfo
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- CN210422591U CN210422591U CN201921087835.XU CN201921087835U CN210422591U CN 210422591 U CN210422591 U CN 210422591U CN 201921087835 U CN201921087835 U CN 201921087835U CN 210422591 U CN210422591 U CN 210422591U
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Abstract
The utility model relates to a petroleum engineering technical field especially relates to a flexible short circuit of logging instrument. Comprises a middle flexible assembly, an upper joint assembly and a lower joint assembly; the upper joint component and the lower joint component are fixedly connected to two ends of the middle flexible component, the upper joint component is provided with a multi-core socket, the middle flexible component is provided with a multi-core plug corresponding to the middle flexible component, the lower joint component is provided with a multi-core plug, and the middle flexible component is provided with a multi-core socket corresponding to the middle flexible component. The middle flexible assembly comprises an upper joint, a lower joint, a spherical sleeve, a spherical tile, an upper threading pipe, a lower threading pipe and a corrugated pipe; the upper threading pipe and the lower threading pipe are fixedly connected at two ends of the corrugated pipe, the spherical tile covers the outer part of the corrugated pipe, the spherical sleeve is matched with the spherical tile, the spherical sleeve is arranged outside the spherical tile, and the upper joint is connected with the lower joint through the spherical sleeve. The flexible well logging device can be bent in any direction, so that the lateral load of a drill rod on the well logging device is reduced, the flexibility of the well logging device is increased, the practical service life of the well logging device is prolonged, and the well logging reliability is improved.
Description
Technical Field
The utility model relates to a petroleum engineering technical field, the field especially relates to a flexible short circuit of logging instrument.
Background
The oil and gas well is a hole drilled by a drilling method, after the oil and gas well is drilled to the designed depth of the well, the logging operation is required to be carried out so as to obtain petroleum geology and engineering technical data which are used as original data of well completion and oil field development, and the position of an oil outlet layer is comprehensively interpreted and judged according to the obtained data. The logging needs to use a logging instrument, the logging instrument comprises a ground instrument and a downhole instrument string, the downhole instrument string mainly comprises logging instruments with different functions, the logging instrument with the sidewall contact device mainly comprises a detector probe, a connecting main body and a sidewall contact device used for driving the detector probe and the borehole diameter leg to move, and in the specific working process, the sidewall contact device pushes the borehole diameter leg to move in a reverse direction and pushes the detector probe to be tightly attached to the borehole wall.
With the development of the directional well technology since the eighties, the horizontal well drilling technology is mature, the horizontal well technology can obviously improve the productivity of oil fields by various mechanisms, reduce the comprehensive cost and provide the exploitation amount of oil layers. With the reduction of the drilling cost of the horizontal well, the horizontal well technology is applied more and more domestically, and the development of the domestic horizontal well logging technology is also driven. The connection to the upper part of the tool string may mechanically assist in isolating the tool from the tool, the tool string may be damaged in the part of the wellbore where the build rate is low due to the absence of a flexible short, and the tool often bends to damage in the middle part due to the inability of the tool itself to follow the trajectory traveled by the tool.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model provides a flexible short circuit of logging instrument. The connecting device is used for connecting logging instruments during horizontal wells and irregular logging, and can be bent in any direction.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a flexible short joint of a logging instrument comprises a middle flexible assembly, an upper joint assembly and a lower joint assembly; the upper joint component and the lower joint component are fixedly connected to two ends of the middle flexible component, the upper joint component is provided with a multi-core socket, the middle flexible component is provided with a multi-core plug corresponding to the middle flexible component, the lower joint component is provided with a multi-core plug, and the middle flexible component is provided with a multi-core socket corresponding to the middle flexible component.
The middle flexible assembly comprises an upper joint, a lower joint, a spherical sleeve, a spherical tile, an upper threading pipe, a lower threading pipe and a corrugated pipe; the upper threading pipe and the lower threading pipe are fixedly connected at two ends of the corrugated pipe, the spherical tile covers the outer part of the corrugated pipe, the spherical sleeve is matched with the spherical tile, the spherical sleeve is arranged outside the spherical tile, and the upper joint is connected with the lower joint through the spherical sleeve.
The upper joint is connected with the multi-core plug through a pressure-bearing sleeve disc, and a sealing ring is arranged between the pressure-bearing sleeve disc and the multi-core plug; the lower joint is connected with the multi-core socket through a pressure-bearing sleeve disc, and a sealing ring is arranged between the pressure-bearing sleeve disc and the multi-core socket.
The upper joint component comprises a multi-core socket, a front socket fixing sleeve, an upper joint, a spring seat and a multi-core plug; the multi-core socket is fixed on the front socket fixing sleeve, the front socket fixing sleeve is installed at one end of the upper joint, the other end of the upper joint is connected with the spring seat, and the multi-core plug is fixed on the spring seat.
The lower joint component comprises a lower joint, a multi-core socket, a socket fixing sleeve and a multi-core plug; the multi-core socket is fixed on the socket fixing sleeve, one end of the socket fixing sleeve is connected with the multi-core plug, and the other end of the socket fixing sleeve is connected with the lower connector.
The upper threading pipe and the lower threading pipe are welded at two ends of the corrugated pipe through lasers.
Still include the guard shield, top connection subassembly and lower clutch components tip are equipped with the external screw thread cover, and the guard shield passes through the screw thread rigid coupling and sheathes at the external screw thread.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses flexible part adopts the pressure-bearing bellows to do the connection, can freely bend various angles, needs crooked function between the solution instrument, can be crooked to arbitrary direction.
(2) The spherical tile covers the outer part of the corrugated pipe, the spherical sleeve is matched with the spherical tile, the spherical sleeve is arranged on the outer part of the spherical tile, and the upper joint is connected with the lower joint through the spherical sleeve; the lateral load of the drill rod on the instrument is reduced, the flexibility of the instrument string is increased, the practical service life of the logging instrument is prolonged, and the logging reliability is improved.
(3) The protective cover is fixedly connected on the external thread sleeve through threads; the guard shield plays the guard action, has increased life.
Drawings
FIG. 1 is a schematic sectional view of the structure of the present invention;
FIG. 2 is a schematic view of a three-dimensional explosion structure of the middle flexible assembly of the present invention;
fig. 3 is a schematic view of a three-dimensional explosion structure of the upper joint assembly of the present invention;
fig. 4 is a schematic view of a three-dimensional explosion structure of the lower joint assembly of the present invention;
FIG. 5 is a schematic view of the three-dimensional structure of the upper threading pipe, the lower threading pipe and the corrugated pipe of the present invention;
fig. 6 is a partial cross-sectional view of the middle flexible assembly of the present invention.
In the figure: 1-middle flexible component 2-upper joint component 3-lower joint component 4-multi-core socket 5-multi-core plug 11-upper joint 12-lower joint 13-spherical sleeve 14-spherical tile 15-upper threading pipe 16-lower threading pipe 17-corrugated pipe 18-pressure bearing sleeve 19-joint connecting sleeve 21-front socket fixing sleeve 22-upper joint 23-spring seat 31-lower joint 32-socket fixing sleeve 6-external thread sleeve 7-protective cap
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in figure 1, the flexible short circuit of the logging instrument comprises a middle flexible assembly 1, an upper joint assembly 2 and a lower joint assembly 3, wherein the upper joint assembly 2 and the lower joint assembly 3 are fixedly connected to two ends of the middle flexible assembly 1.
As shown in FIG. 2, the middle flexible assembly 1 comprises an upper joint 11, a lower joint 12, a spherical sleeve 13, a spherical tile 14, an upper threading pipe 15, a lower threading pipe 16 and a corrugated pipe 17. As shown in fig. 5 and 6, the corrugated tube 17 is made of stainless steel 304 and is laminated by 7 layers, and the upper threading tube 15 and the lower threading tube 16 are laser-welded to both ends of the corrugated tube 17. The spherical tile 14 is covered outside the corrugated pipe 17 as shown in fig. 2, the spherical sleeve 13 is matched with the spherical tile 14, and the spherical sleeve 13 is arranged outside the spherical tile 14. The upper joint 11 is connected with one end of the spherical sleeve 13 through a joint connecting sleeve 19, and the lower joint 12 is connected with the other end of the spherical sleeve 13 through the joint connecting sleeve 19.
The upper joint 11 is connected with the multi-core plug 5 through a pressure-bearing sleeve disc 18, and a sealing ring is arranged between the pressure-bearing sleeve disc 18 and the multi-core plug 5; the lower joint 12 is connected with the multi-core socket 4 through a pressure-bearing sleeve disc 18, and a sealing ring is arranged between the pressure-bearing sleeve disc 18 and the multi-core socket 4. The multi-core socket 4 is matched with the multi-core plug 5, the multi-core socket 4 and the multi-core plug 5 are both existing products, the multi-core socket 4 adopts a 32-core socket, and the multi-core plug 5 adopts a 32-core plug.
As shown in fig. 3, the upper contact assembly 2 includes a multi-contact socket 4, a front socket securing sleeve 21, an upper contact 22, a spring seat 23, and a multi-contact plug 5. The multi-core socket 4 is fixed on a front socket fixing sleeve 21, the front socket fixing sleeve 21 is installed at one end of an upper connector 22, the other end of the upper connector 22 is connected with a spring seat 23, and the multi-core plug 5 is fixed on the spring seat 23.
As shown in fig. 4, the lower joint assembly includes a lower joint 31, a multi-core socket 4, a socket securing sleeve 32 and a multi-core plug 5. The multi-core socket 4 is fixed on the socket fixing sleeve 32, one end of the socket fixing sleeve 32 is connected with the multi-core plug 5, and the other end is connected with the lower connector 31.
As shown in fig. 1, the joint device further comprises a protective cover 7, wherein the end parts of the upper joint assembly 2 and the lower joint assembly 3 are provided with external thread sleeves 6, and the protective cover 7 is fixedly connected on the external thread sleeves 6 through threads. The protective cover 7 plays a role in protection, and the service life of the flexible short circuit is prolonged.
The utility model discloses flexible part adopts pressure-bearing bellows 17 to do the connection, can freely bend various angles, needs crooked function between the solution instrument, can be crooked to arbitrary direction. The utility model can be used at the top of the instrument string to reduce the side load of the drill rod to the instrument; also used at different locations in the instrument string to center or decenter the instrument; or for higher slope wellbores to increase the flexibility of the tool string. The utility model discloses reduce the drilling rod to the side direction load of instrument, increase the pliability of instrument cluster, prolong the utility life of logging instrument, improve the reliability of logging.
The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation and specific operation processes are given, but the protection scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (6)
1. The utility model provides a flexible short circuit of logging instrument which characterized in that: comprises a middle flexible assembly, an upper joint assembly and a lower joint assembly; the upper joint component and the lower joint component are fixedly connected to two ends of the middle flexible component, the upper joint component is provided with a multi-core socket, the middle flexible component is provided with a multi-core plug corresponding to the middle flexible component, the lower joint component is provided with a multi-core plug, and the middle flexible component is provided with a multi-core socket corresponding to the middle flexible component;
the middle flexible assembly comprises an upper joint, a lower joint, a spherical sleeve, a spherical tile, an upper threading pipe, a lower threading pipe and a corrugated pipe; the upper threading pipe and the lower threading pipe are fixedly connected at two ends of the corrugated pipe, the spherical tile covers the outer part of the corrugated pipe, the spherical sleeve is matched with the spherical tile, the spherical sleeve is arranged outside the spherical tile, and the upper joint is connected with the lower joint through the spherical sleeve.
2. The flexible short joint of logging instrument as defined in claim 1, wherein: the upper joint is connected with the multi-core plug through a pressure-bearing sleeve disc, and a sealing ring is arranged between the pressure-bearing sleeve disc and the multi-core plug; the lower joint is connected with the multi-core socket through a pressure-bearing sleeve disc, and a sealing ring is arranged between the pressure-bearing sleeve disc and the multi-core socket.
3. The flexible short joint of logging instrument as defined in claim 1, wherein: the upper joint component comprises a multi-core socket, a front socket fixing sleeve, an upper joint, a spring seat and a multi-core plug; the multi-core socket is fixed on the front socket fixing sleeve, the front socket fixing sleeve is installed at one end of the upper joint, the other end of the upper joint is connected with the spring seat, and the multi-core plug is fixed on the spring seat.
4. The flexible short joint of logging instrument as defined in claim 1, wherein: the lower joint component comprises a lower joint, a multi-core socket, a socket fixing sleeve and a multi-core plug; the multi-core socket is fixed on the socket fixing sleeve, one end of the socket fixing sleeve is connected with the multi-core plug, and the other end of the socket fixing sleeve is connected with the lower connector.
5. The flexible short joint of logging instrument as defined in claim 1, wherein: the upper threading pipe and the lower threading pipe are welded at two ends of the corrugated pipe through lasers.
6. The flexible short joint of logging instrument as defined in claim 1, wherein: still include the guard shield, top connection subassembly and lower clutch components tip are equipped with the external screw thread cover, and the guard shield passes through the screw thread rigid coupling and sheathes at the external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087835.XU CN210422591U (en) | 2019-07-11 | 2019-07-11 | Flexible short circuit of logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087835.XU CN210422591U (en) | 2019-07-11 | 2019-07-11 | Flexible short circuit of logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210422591U true CN210422591U (en) | 2020-04-28 |
Family
ID=70382091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921087835.XU Active CN210422591U (en) | 2019-07-11 | 2019-07-11 | Flexible short circuit of logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210422591U (en) |
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2019
- 2019-07-11 CN CN201921087835.XU patent/CN210422591U/en active Active
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