CN113067224B - Multi-core rotary wire passing device for underground - Google Patents
Multi-core rotary wire passing device for underground Download PDFInfo
- Publication number
- CN113067224B CN113067224B CN202110605805.9A CN202110605805A CN113067224B CN 113067224 B CN113067224 B CN 113067224B CN 202110605805 A CN202110605805 A CN 202110605805A CN 113067224 B CN113067224 B CN 113067224B
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- China
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- pipe body
- bearing block
- shell
- balance
- cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
- H01R35/04—Turnable line connectors with limited rotation angle with frictional contact members
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Abstract
The invention relates to the technical field of downhole operation, and particularly discloses a multi-core rotary wire passing device for downhole, which comprises a shell, a pressure balancing mechanism, a rotating mechanism and a power supply mechanism, wherein the shell comprises an upper pipe body and a lower pipe body; the pressure balance mechanism comprises a balance cabin shell, a balance ring and a spring; the rotating mechanism comprises a rotating shaft and a connecting rod; the power supply mechanism comprises a conductive slip ring, an upper bearing block and a lower bearing block, wherein the stator end of the conductive slip ring is connected in the cavity of the upper pipe body, and the rotor end of the conductive slip ring is connected to the top of the rotating shaft; go up all being equipped with on bearing block and the lower bearing block and connect the electric contact pin, go up the bearing block and be located conductive slip ring's top, fixed connection is in the intracavity of upper portion body, and lower bearing block fixed connection is in lower part body intracavity, and the oiling chamber of intercommunication about the intracavity of shell forms through last bearing block, lower bearing block and connecting rod. The invention can supply power to the suspended equipment and effectively avoid the damage to the upper suspended cable and the equipment when the lower equipment is twisted.
Description
Technical Field
The invention relates to the technical field of underground operation, in particular to an underground multi-core rotary wire passing device.
Background
At present, underground operation equipment is changed from traditional hydraulic type to electric type, electric machinery is more convenient to adjust and control compared with hydraulic type, and long-distance hydraulic pressure transmission from the ground to the well bottom is unstable;
with the popularization of electric machines, the electric machines are generally hung by armor cables and then put into a well for operation, however, in use, the cables of a plurality of electric appliances are easy to wind and knot in the well, and the cables are easy to twist after being hung on a device, and even twisted into a twist shape to cause the damage of the cables.
In addition, in the process of lifting the cable suspension device to the ground, once the device is clamped by a complex environment at the bottom of a well, the ground cannot be known, when the cable is still lifted continuously, the cable is easy to break, equipment and a shaft are damaged, and the later-period fishing of the equipment is also difficult.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an underground multi-core rotary wire passing device which is reasonable in structure, can supply power to suspended equipment, and can effectively avoid damage to upper suspended cables and equipment when lower equipment is twisted.
The technical scheme of the invention is as follows:
a multi-core rotary wire passing device for underground comprises a shell, a pressure balance mechanism, a rotating mechanism and a power supply mechanism, wherein the shell comprises an upper pipe body and a lower pipe body;
the pressure balance mechanism comprises a balance bin shell, a balance ring and a spring, the balance ring is fixedly connected in the balance bin shell, the balance bin shell is connected to the bottom of the upper pipe body in a sliding and sealing mode, a limiting boss is arranged at the bottom of the upper pipe body, and the spring is supported between the limiting boss and the balance ring;
the rotating mechanism comprises a rotating shaft and a connecting rod, the rotating shaft and the connecting rod are respectively rotatably connected in the upper pipe body through bearings, the bottom of the connecting rod extends out of the balance bin shell and then is connected with the lower pipe body, the connecting rod is rotatably and hermetically connected with the balance bin shell, a tension sensor is connected between the rotating shaft and the connecting rod, and the middle parts of the rotating shaft, the tension sensor and the connecting rod are provided with communicated wire passing channels;
the power supply mechanism comprises a conductive slip ring, an upper bearing block and a lower bearing block, wherein the stator end of the conductive slip ring is connected in the cavity of the upper pipe body, and the rotor end of the conductive slip ring is connected to the top of the rotating shaft;
the electric connection contact pin is arranged on each of the upper bearing block and the lower bearing block, the upper bearing block is located above the conductive sliding ring and is fixedly connected in the cavity of the upper pipe body, the lower bearing block is fixedly connected in the cavity of the lower pipe body, an oil injection cavity which is communicated with the oil injection cavity is formed in the cavity of the shell through the upper bearing block, the lower bearing block and the connecting rod, an oil hole communicated with the oil injection cavity is further formed in the shell, and an oil way communicated with the oil injection cavity and the inner cavity of the balance bin shell is formed in the oil way.
Preferably, a CCL detection mechanism is arranged below the lower bearing block in the lower pipe body.
Preferably, the CCL detection mechanism comprises a CCL module, a connecting pipe, a coil framework and a blocking sleeve;
the two ends of the connecting pipe are respectively connected with the CCL module and the blocking sleeve, the CCL module and the blocking sleeve are respectively connected with the lower pipe body, the coil framework is fixed in the middle of the connecting pipe and provided with a coil, and magnetic steel is installed at an annular space between the connecting pipe and the lower pipe body.
Preferably, the upper end and the lower end in the shell cavity are both provided with a Remo connector.
Preferably, the upper portion body includes nipple joint, top connection, swivel sleeve and the tension sleeve that from top to bottom connects gradually.
Preferably, the lower pipe body comprises a middle joint and a CCL sleeve which are sequentially connected from top to bottom.
Preferably, the top of the shell is provided with a protective cap, and the bottom of the shell is provided with a protective plug.
Preferably, the oil hole is divided into an upper oil hole formed in the upper pipe body and a lower oil hole formed in the lower pipe body.
Preferably, the oil hole is provided with an oil plug.
Compared with the prior art, the invention has the following advantages:
the upper end of the electric power supply device is connected with the power supply faucet, the lower end of the electric power supply device is connected with the power utilization device, series power supply is achieved, when the lower shell rotates, the stator end and the rotor end of the conductive slip ring are in rotating fit, continuous power supply during rotation can be guaranteed, and the problem that a power supply cable is twisted into a twist shape can be avoided.
The oil injection cavity and the balance bin shell are connected through the oil injection hole, hydraulic oil is injected into the oil injection cavity and the balance bin shell, and the balance bin shell connected to the bottom of the upper pipe body in a sliding mode is used for balancing the pressure difference between the inside and the outside of the well and the inside of the cavity of the oil injection cavity, so that the problem that the inside and the outside pressure difference cannot rotate is solved, and the oil injection cavity is more flexible to rotate.
In addition, the change of the axial tension of the invention can be detected in real time through the tension sensor connected between the rotating shaft and the connecting rod, thereby avoiding the damage to the device and the cable caused by the fact that the lower part is hung too heavy or the device is blocked.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the upper structure of the present invention;
FIG. 3 is a schematic view of the lower structure of the present invention;
in the figure: 1. the structure of the composite pipe comprises an upper pipe body, 2, a short section, 3, an upper joint, 4, a rotating sleeve, 5, a tension sleeve, 6, a middle joint, 7, a CCL sleeve, 8, a lower pipe body, 9, a protective cap, 10, a Ramomet socket, 11, an upper bearing block, 12, an upper connecting pin, 13, an upper oil hole, 14, a stator end, 15, a rotor end, 16, a conductive sliding ring, 17, a first thrust ball bearing, 18, a needle roller bearing, 19, a rotating shaft, 20, a tension sensor, 21, a connecting rod, 22, a second thrust ball bearing, 23, a balance bin shell, 24, a balance ring, 25, a spring, 26, a limiting boss, 27, a wire passing channel, 28, a lower oil hole, 29, a lower connecting pin, 30, a lower bearing block, 31, a CCL module, 32, a connecting pipe, 33, a coil skeleton, 34, magnetic steel, 35, a retaining sleeve, 36, a Ramomo plug, 37 and a protective plug.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
Example 1
Referring to fig. 1 to 3, the underground multi-core rotary wire passing device comprises a shell, a pressure balancing mechanism, a rotating mechanism and a power supply mechanism, wherein the shell comprises an upper pipe body 1 and a lower pipe body 8.
The pressure balance mechanism comprises a balance bin shell 23, a balance ring 24 and a spring 25, the balance ring 24 is fixedly connected in the balance bin shell 23, the balance bin shell 23 is connected to the bottom of the upper pipe body 1 in a sliding and sealing mode, a limiting boss 26 is arranged at the bottom of the upper pipe body 1, and the spring 25 is supported between the limiting boss 26 and the balance ring 24.
The rotating mechanism includes a rotating shaft 19 and a connecting rod 21, and the rotating shaft 19 is rotatably connected in the upper pipe body 1 through a first thrust ball bearing 17 and a needle bearing 18.
The connecting rod 21 is located below the rotating shaft 19 and is rotatably connected to the upper pipe body 1 by a pair of second thrust ball bearings 22.
The bottom of the connecting rod 21 extends out of the balance bin shell 23 and then is connected with the lower pipe body 8, and the connecting rod 21 is connected with the balance bin in a rotating and sealing mode.
A tension sensor 20 is connected between the rotating shaft 19 and the connecting rod 21, and a communicating wire passing channel 27 is arranged in the middle of the rotating shaft 19, the tension sensor 20 and the connecting rod 21.
The power supply mechanism comprises a conductive slip ring 16, an upper bearing block 11 and a lower bearing block 30, wherein a stator end 14 of the conductive slip ring 16 is connected in the cavity of the upper pipe body 1, and a rotor end 15 of the conductive slip ring 16 is connected to the top of the rotating shaft 19.
A group of upper electric contact pins 12 are arranged on the upper bearing block 11, a group of lower electric contact pins 29 are arranged on the lower bearing block 30, and the number of the electric contact pins is assembled according to the number of cores of the connecting cable.
The upper bearing block 11 is located above the conductive slip ring 16 and is fixedly connected in the cavity of the upper pipe body 1, and the lower bearing block 30 is fixedly connected in the cavity of the lower pipe body 8.
An oil injection cavity which is communicated up and down is formed in the cavity of the shell through the upper bearing block 11, the lower bearing block 30 and the connecting rod 21, an oil hole communicated with the oil injection cavity is further formed in the shell, and an oil way for communicating the oil injection cavity with the inner cavity of the balance bin shell 23 is further formed in the shell.
The oil path may be provided on the housing, or a certain oil gap may be left between the parts, for example, an oil gap is left between the contact surface of the rotating shaft 19 and the tension sensor 20 with the upper housing.
The working principle is as follows:
in use, the upper electrical contact 12 and the stator terminal 14 of the electrical slip ring 16 are electrically connected by wires, and the rotor terminal 15 of the electrical slip ring 16 and the lower electrical contact pin 29 are connected by wires.
Then the upper end of the invention is connected with a power supply faucet, the lower end is connected with an electric device, so as to realize series power supply, when the suspended device is twisted in use, the lower pipe body 8 is driven to rotate, and at the moment, the stator end 14 and the rotor end 15 of the conductive slip ring 16 are in rotating fit, so that the continuous power supply in rotation can be ensured, and the problem that a power supply cable is twisted into a twist shape can be avoided.
An oil supply pipeline is connected through an oil filling hole, hydraulic oil is injected into the oil filling cavity and the balance bin shell 23, and the pressure difference between the inside of the well and the cavity of the oil filling cavity is balanced through the balance bin shell 23 which is connected to the bottom of the upper pipe body 1 in a sliding mode, so that the problem that a rotating mechanism cannot rotate due to the existence of the internal and external pressure difference is solved, and the oil filling balance device is more flexible in rotation.
In addition, the tension sensor 20 connected between the rotating shaft 19 and the connecting rod 21 can detect the change of the axial tension of the invention in real time, thereby avoiding the damage to the device and the cable caused by the over-weight of the lower suspension or the device being stuck.
Example 2
The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:
referring to fig. 1 to 3, a protective cap 9 is mounted on the top of the housing, and a protective plug 37 is mounted on the bottom of the housing.
When the dust-proof storage box is stored or transferred, the dust-proof function can be achieved by installing the protective cap 9 and the protective plug 37.
The upper pipe body 1 comprises a short section 2, an upper joint 3, a rotary sleeve 4 and a tension sleeve 5 which are sequentially connected from top to bottom; the lower pipe body 8 comprises a middle joint 6 and a CCL sleeve 7 which are sequentially connected from top to bottom.
By dividing the upper pipe body 1 and the lower pipe body 8 into a multi-section series structure, the assembly of the invention is more convenient, and the later disassembly and maintenance are more convenient.
Example 3
The embodiment is further optimized on the basis of the above embodiment, and specifically includes:
referring to fig. 1 to 3, a CCL detection mechanism is disposed below the lower bearing block 30 in the lower tube 8, and the CCL detection mechanism includes a CCL module 31, a connection tube 32, a bobbin 33, and a spacer 35.
Both ends of connecting pipe 32 are connected with CCL module 31 and spacer 35 respectively, and CCL module 31 and spacer 35 are connected with lower part body 8 respectively, and coil skeleton 33 is fixed in the middle part of connecting pipe 32 to the winding has the coil on coil skeleton 33, and magnet steel 34 is installed to the annular space department between connecting pipe 32 and the lower part body 8.
By adding the CCL detection mechanism, the collar can be detected when the well is lowered, and the invention with compact structure has the functions of multi-core power supply, internal and external pressure difference balance, tension detection and CCL detection, and is more convenient to use.
Example 4
The embodiment is further optimized on the basis of the above embodiment, and specifically includes:
referring to fig. 1 to 3, the upper and lower ends of the cavity of the housing are provided with the permalloy connectors.
Wherein, a Raymond socket 10 is arranged on the upper tube body 1, and the Raymond socket 10 is electrically connected with an upper electric contact pin 12 through a lead.
Mounted on the lower tube 8 is a Ramopel plug 36, the Ramopel plug 36 being connected by a wire to the lower electrical contact pin 29.
The Remo connectors arranged at the upper end and the lower end of the power supply device are more convenient to assemble with the power supply faucet and the electric device at the lower part.
Example 5
The embodiment is further optimized on the basis of the above embodiment, and specifically includes:
the oil holes are divided into an upper oil hole 13 arranged on the upper pipe body 1 and a lower oil hole 28 arranged on the lower pipe body 8, and each oil hole is provided with an oil plug.
Through the upper oil hole and the lower oil hole, when the lower connected device needs hydraulic oil, the lower oil hole 28 is connected with a hydraulic oil cavity of the lower device through a pipeline, and the upper oil hole 13 is connected with an oil supply system, so that the devices adopt the same oil supply system.
Claims (9)
1. The utility model provides a rotatory wire passing device of multicore for pit which characterized in that: the device comprises a shell, a pressure balance mechanism, a rotating mechanism and a power supply mechanism, wherein the shell comprises an upper pipe body and a lower pipe body;
the pressure balance mechanism comprises a balance bin shell, a balance ring and a spring, the balance ring is fixedly connected in the balance bin shell, the balance bin shell is connected to the bottom of the upper pipe body in a sliding and sealing mode, a limiting boss is arranged at the bottom of the upper pipe body, and the spring is supported between the limiting boss and the balance ring;
the rotating mechanism comprises a rotating shaft and a connecting rod, the rotating shaft and the connecting rod are respectively rotatably connected in the upper pipe body through bearings, the bottom of the connecting rod extends out of the balance bin shell and then is connected with the lower pipe body, the connecting rod is rotatably and hermetically connected with the balance bin shell, a tension sensor is connected between the rotating shaft and the connecting rod, and the middle parts of the rotating shaft, the tension sensor and the connecting rod are provided with communicated wire passing channels;
the power supply mechanism comprises a conductive slip ring, an upper bearing block and a lower bearing block, wherein the stator end of the conductive slip ring is connected in the cavity of the upper pipe body, and the rotor end of the conductive slip ring is connected to the top of the rotating shaft;
the electric connection contact pin is arranged on each of the upper bearing block and the lower bearing block, the upper bearing block is located above the conductive sliding ring and is fixedly connected in the cavity of the upper pipe body, the lower bearing block is fixedly connected in the cavity of the lower pipe body, an oil injection cavity which is communicated with the oil injection cavity is formed in the cavity of the shell through the upper bearing block, the lower bearing block and the connecting rod, an oil hole communicated with the oil injection cavity is further formed in the shell, and an oil way communicated with the oil injection cavity and the inner cavity of the balance bin shell is formed in the oil way.
2. The downhole multi-core rotary string passing device according to claim 1, wherein: and a CCL detection mechanism is arranged below the lower bearing block in the lower pipe body.
3. The downhole multi-core rotary stringing device as claimed in claim 2, wherein: the CCL detection mechanism comprises a CCL module, a connecting pipe, a coil framework and a blocking sleeve;
the two ends of the connecting pipe are respectively connected with the CCL module and the blocking sleeve, the CCL module and the blocking sleeve are respectively connected with the lower pipe body, the coil framework is fixed in the middle of the connecting pipe and provided with a coil, and magnetic steel is installed at an annular space between the connecting pipe and the lower pipe body.
4. The downhole multi-core rotary string passing device according to claim 1, wherein: and the upper end and the lower end in the cavity of the shell are both provided with a Remo connector.
5. The downhole multi-core rotary string passing device according to claim 1, wherein: the upper portion body includes nipple joint, top connection, swivel sleeve and the tension cover that from top to bottom connects gradually.
6. The downhole multi-core rotary string passing device according to claim 1, wherein: the lower pipe body comprises a middle joint and a CCL sleeve which are sequentially connected from top to bottom.
7. The downhole multi-core rotary string passing device according to claim 1, wherein: the top of shell is installed the helmet, the bottom of shell is installed and is protected stifled.
8. The downhole multi-core rotary string passing device according to claim 1, wherein: the oil hole is divided into an upper oil hole arranged on the upper pipe body and a lower oil hole arranged on the lower pipe body.
9. The multi-core rotary stringing device as claimed in claim 8, wherein: and the oil hole is provided with an oil plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110605805.9A CN113067224B (en) | 2021-06-01 | 2021-06-01 | Multi-core rotary wire passing device for underground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110605805.9A CN113067224B (en) | 2021-06-01 | 2021-06-01 | Multi-core rotary wire passing device for underground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113067224A CN113067224A (en) | 2021-07-02 |
| CN113067224B true CN113067224B (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110605805.9A Active CN113067224B (en) | 2021-06-01 | 2021-06-01 | Multi-core rotary wire passing device for underground |
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| CN (1) | CN113067224B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4319240A (en) * | 1979-08-30 | 1982-03-09 | Teleco Oilfield Services Inc. | Electrical connector for borehole telemetry apparatus |
| CA2482681C (en) * | 2004-09-28 | 2008-08-12 | Halliburton Energy Services, Inc. | Energized slip ring assembly |
| CN102041991A (en) * | 2009-10-14 | 2011-05-04 | 西安威尔罗根能源科技有限公司 | Pressure balancing mechanism |
| CN203335060U (en) * | 2013-07-09 | 2013-12-11 | 中国电子科技集团公司第二十二研究所 | Rotation three-parameter short section |
| CN103414079A (en) * | 2013-07-29 | 2013-11-27 | 中国海洋大学 | Underwater mini-type conductive pulling ring |
| CN205297539U (en) * | 2015-12-31 | 2016-06-08 | 盘锦辽油晨宇集团有限公司 | Four parameter measurement instruments of oil well high temperature storage formula |
| CN206158724U (en) * | 2016-09-22 | 2017-05-10 | 上海工业自动化仪表研究院 | Support multicore logging cable's crawl device in pit |
| CN207393189U (en) * | 2017-10-19 | 2018-05-22 | 北京雄跃厚明科技有限公司 | A kind of magnetic orientation well-logging probe |
| CN209942754U (en) * | 2018-12-25 | 2020-01-14 | 杭州瑞利声电技术有限公司 | Rotary pup joint structure for well logging |
| CN210033418U (en) * | 2019-06-06 | 2020-02-07 | 李军 | Pressure balancing device of logging instrument |
| CN212867504U (en) * | 2020-08-30 | 2021-04-02 | 东营百华石油技术开发有限公司 | Rotary oil drain device |
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2021
- 2021-06-01 CN CN202110605805.9A patent/CN113067224B/en active Active
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| CN113067224A (en) | 2021-07-02 |
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Inventor after: Li Zetian Inventor after: Xu Jianbo Inventor after: Liu Zhiming Inventor before: Li Zetian Inventor before: Yuan Lin Inventor before: Fan Yubin Inventor before: Xu Jianbo Inventor before: Hu Peiwei Inventor before: Yang Peng Inventor before: Liu Zhiming |