CN208386248U - Signal and power transfer outer ring and guiding pipe nipple - Google Patents
Signal and power transfer outer ring and guiding pipe nipple Download PDFInfo
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- CN208386248U CN208386248U CN201820006568.8U CN201820006568U CN208386248U CN 208386248 U CN208386248 U CN 208386248U CN 201820006568 U CN201820006568 U CN 201820006568U CN 208386248 U CN208386248 U CN 208386248U
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- ring
- power transfer
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- annular groove
- joint sleeve
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Abstract
It is a kind of signal and power transfer outer ring and guiding pipe nipple the utility model relates to oil drilling tool technical field；The signal and power transfer outer ring include upper retaining ring, lower joint sleeve and insulation inner sleeve；It is integrally fixed with outer cylinder in the upper end outer rim of lower joint sleeve, the upper end inside of outer cylinder and the lower outside of upper retaining ring are fixedly installed togather, are fixedly installed togather on the outside of the upper end for the inner sleeve that insulate with the lower inside of upper retaining ring.The utility model reasonable and compact in structure, it is easy to use, by signal and power transfer outer ring and rotating signal and power transfer inner ring relatively rotate and electromagnetic coupling, it avoids signal and power transfer outer ring and rotating signal and the abrasion of power transfer inner ring and causes sealing performance to reduce, electric energy heavy losses, have the characteristics that safe and reliable and is easily installed, operation is facilitated, is improved work efficiency, production cost is reduced.
Description
Technical field
It is a kind of signal and power transfer outer ring and guiding the utility model relates to oil drilling tool technical field
Pipe nipple.
Background technique
When existing rotary steering drilling tool works, not rotating has relative rotation between outer cylinder and mandrel, signal can load
On circuit, signal transmission is realized by the transmission of electric energy.Traditional method can transmit electric energy by electric slip ring, but its form is
Contact is transmitted and contact portion has relative rotation, and sealing performance caused by be easy to causeing because of abrasion reduces, once seal failure,
It will cause the heavy losses of electric energy.
Summary of the invention
The utility model provides a kind of signal and power transfer outer ring and guiding pipe nipple, overcomes above-mentioned existing skill
The deficiency of art, when can effectively solve the work of existing rotary steering drilling tool, due to contact transmission and contact portion has phase
To rotation, sealing performance is reduced caused by easily causing because of abrasion, the problem of electric energy heavy losses.
The technical solution of the utility model first is that being realized by following measures: a kind of signal and power transfer
Outer ring, including upper retaining ring, lower joint sleeve and insulation inner sleeve；It is integrally fixed with outer cylinder in the upper end outer rim of lower joint sleeve, outer cylinder
It is fixedly installed togather on the inside of upper end with the lower outside of upper retaining ring, the lower inside in the upper end outside and upper retaining ring of the inner sleeve that insulate
Be fixedly installed togather, the lower end outside for the inner sleeve that insulate and the upper inner of lower joint sleeve are fixedly installed togather, upper retaining ring, under
External seal ring cavity is formed between connector sleeve, outer cylinder and insulation inner sleeve, is equipped on lower joint sleeve and is connected with external seal ring cavity
Underpass hole is fixedly installed with outer ferrite outer seal ring is intracavitary, outer coiling is wound on outer ferrite.
Here is the further optimization and/or improvements to one of above-mentioned utility model technical solution:
The above-mentioned lower outside in upper retaining ring is equipped with outer installation annular groove, and the upper end of outer cylinder is mounted on the outer mounting ring of retaining ring
It is fixedly installed togather in slot and by screw.
Above-mentioned to be respectively equipped with interior installation annular groove in the lower inside of upper retaining ring and the upper inner of lower joint sleeve, insulate inner sleeve
Upper end be fixedly mounted in the interior installation annular groove of retaining ring, the lower end for the inner sleeve that insulate is fixedly mounted on the interior installation of lower joint sleeve
In annular groove.
Above-mentioned outer coiling is waterproof copper wire；Or/and it is equipped with lower annular groove in the lower inside of lower joint sleeve, in lower joint sleeve
Lower part be equipped with the connecting hole that is connected with lower annular groove.
The technical solution of the utility model second is that being realized by following measures: it is a kind of to be transmitted using signal and electric energy
The guiding pipe nipple of device outer ring, including signal and power transfer outer ring, rotating signal and power transfer inner ring, rotation
Core axis, does not rotate outer cylinder at rotary steering drilling tool outer cylinder；It is fixedly installed with bearing in the upper outside of rotary core shaft, is revolved
The inner cylinder upper end of the lower end and bearing that turn guide drilling tool outer cylinder is fixedly installed togather, in rotary steering drilling tool outer cylinder
Inside be equipped with the first electronics storehouse, be fixedly installed with circuit board in the first electronics storehouse, the outer cylinder lower end of bearing and do not rotate outer
The upper end of cylinder is fixedly installed togather, and rotating signal and power transfer inner ring are fixedly mounted on outside the middle part of rotary core shaft
Side, signal and power transfer outer ring are fixedly mounted on the inside for not rotating outer cylinder, signal and power transfer outer ring
It is corresponding with power transfer inner ring with rotating signal and have spacing, the second electricity is equipped in the lower inside for not rotating outer cylinder
Sub- storehouse is fixedly installed with circuit board in the second electronics storehouse, and the circuit board in the first electronics storehouse and rotating signal and electric energy pass
The interior coiling of defeated device inner ring is linked together by conducting wire, and outer coiling is connect with the circuit board in the second electronics storehouse by conducting wire
Together.
Here is two further optimization and/or improvements to above-mentioned utility model technical solution:
Above-mentioned bearing is TC bearing.
Above-mentioned rotating signal and power transfer inner ring include upper joint sleeve, lower retaining ring and insulating coating；In upper company
The lower end inner edge of female connector is integrally fixed with inner cylinder, and the lower end outside of inner cylinder and the upper inner of lower retaining ring are fixedly installed togather,
It is fixedly installed togather on the inside of the upper end of insulating coating with the lower outside of upper joint sleeve, the lower end inside and lower block of insulating coating
The upper outside of circle is fixedly installed togather, and inner seal ring chamber is formed between upper joint sleeve, lower retaining ring, inner cylinder and insulating coating,
It is equipped with the upper threading hole that is connected with inner seal ring chamber on upper joint sleeve, is fixedly installed with interior iron oxygen inner seal ring is intracavitary
Body is wound with interior coiling on interior ferrite.
The above-mentioned upper inner in lower retaining ring is equipped with interior installation annular groove, and the lower end of inner cylinder is mounted on the interior mounting ring of lower retaining ring
In slot.
It is above-mentioned to be respectively equipped with outer installation annular groove, insulating coating in the lower outside of upper joint sleeve and the upper outside of lower retaining ring
Upper end be fixedly mounted in the outer installation annular groove of upper joint sleeve, the lower end of insulating coating is fixedly mounted on the outer installation of lower retaining ring
In annular groove.
Above-mentioned interior coiling is waterproof copper wire；Or/and upper annular groove is equipped in the upper inner of upper joint sleeve；Or/and upper
The outside of connector sleeve is equipped with bayonet；Or/and inner cylinder is fixedly mounted on the outside of the middle part of rotary core shaft.
The utility model reasonable and compact in structure, it is easy to use, by signal and power transfer outer ring and rotatably
Signal and power transfer inner ring relatively rotate and electromagnetic coupling, avoids signal and power transfer outer ring and rotatably
Signal and power transfer inner ring wear and cause sealing performance to reduce, electric energy heavy losses, have safe and reliable and are convenient for
The characteristics of installation, facilitates operation, improves work efficiency, reduces production cost.
Detailed description of the invention
Attached drawing 1 is the main view half section enlarged structure schematic diagram of embodiment 1.
Attached drawing 2 is the main view broken section structural schematic diagram of embodiment 2.
Attached drawing 3 is that the main view half section enlarged structure of rotating signal and power transfer inner ring is illustrated in embodiment 2
Figure.
Attached drawing 4 is the overlooking structure diagram of attached drawing 3.
Coding in attached drawing is respectively as follows: 1 for upper retaining ring, and 2 be lower joint sleeve, and 3 be insulation inner sleeve, and 4 be outer cylinder, and 5 be outer close
Seal ring chamber, 6 be underpass hole, and 7 be outer ferrite, and 8 be outer coiling, and 9 be screw, and 10 be lower annular groove, and 11 be connecting hole, and 12 be upper
Connector sleeve, 13 be lower retaining ring, and 14 be insulating coating, and 15 be inner cylinder, and 16 be inner seal ring chamber, and 17 be upper threading hole, and 18 be interior iron
Oxysome, 19 be interior coiling, and 20 be upper annular groove, and 21 be bayonet, and 22 be signal and power transfer outer ring, and 23 be rotating signal
It is rotary core shaft with power transfer inner ring, 24,25 be rotary steering drilling tool outer cylinder, and 26 is do not rotate outer cylinder, and 27 are
Bearing, 28 be the first electronics storehouse, and 29 be the second electronics storehouse.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 1 is described, such as: front, rear, top, and bottom, upper and lower positional relationship be according to Figure of description 1
Butut direction determine.
The utility model is further described below with reference to examples and drawings:
Embodiment 1, as shown in Fig. 1, the signal and power transfer outer ring 22 include upper retaining ring 1, lower joint sleeve 2 and
Insulate inner sleeve 3；Outer cylinder 4, the lower part of the upper end inside and upper retaining ring 1 of outer cylinder 4 are integrally fixed in the upper end outer rim of lower joint sleeve 2
Outside is fixedly installed togather, and is fixedly installed togather on the outside of the upper end for the inner sleeve 3 that insulate with the lower inside of upper retaining ring 1, insulate
The lower end outside of inner sleeve 3 and the upper inner of lower joint sleeve 2 are fixedly installed togather, upper retaining ring 1, lower joint sleeve 2,4 and of outer cylinder
External seal ring cavity 5 is formed between the inner sleeve 3 that insulate, and the underpass hole 6 being connected with external seal ring cavity 5 is equipped on lower joint sleeve 2,
It is fixedly installed with outer ferrite 7 in outer seal ring chamber 5, outer coiling 8 is wound on outer ferrite 7.
Above-described embodiment 1 can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 1, it is equipped with outer installation annular groove in the lower outside of upper retaining ring 1, the upper end of outer cylinder 4 is mounted on retaining ring
It is fixedly installed togather in 1 outer installation annular groove and by screw 9.
As shown in Fig. 1, interior mounting ring is respectively equipped in the lower inside of upper retaining ring 1 and the upper inner of lower joint sleeve 2
The upper end of slot, insulation inner sleeve 3 is fixedly mounted in the interior installation annular groove of retaining ring 1, and the lower end of insulation inner sleeve 3 is fixedly mounted on down
In the interior installation annular groove of connector sleeve 2.
As needed, outer coiling 8 is waterproof copper wire；Or/and it is equipped with lower annular groove 10 in the lower inside of lower joint sleeve 2,
The lower part of lower joint sleeve 2 is equipped with the connecting hole 11 being connected with lower annular groove 10.
Embodiment 2, as shown in attached drawing 1,2,3,4, this uses the guiding pipe nipple of signal and power transfer outer ring 22, packet
Include signal and power transfer outer ring 22, rotating signal and power transfer inner ring 23, rotary core shaft 24, rotary steering
Drilling tool outer cylinder 25 does not rotate outer cylinder 26；It is fixedly installed with bearing 27 in the upper outside of rotary core shaft 24, rotary steering bores
The lower end of well tool outer cylinder 25 is fixedly installed togather with the inner cylinder upper end of bearing 27, in rotary steering drilling tool outer cylinder 25
Inside is equipped with the first electronics storehouse 28, is fixedly installed with circuit board in the first electronics storehouse 28,4 lower end of outer cylinder of bearing 27 with do not revolve
The upper end for turning outer cylinder 26 is fixedly installed togather, and rotating signal and power transfer inner ring 23 are fixedly mounted on rotary core shaft
24 middle part outside, signal and power transfer outer ring 22 are fixedly mounted on the inside for not rotating outer cylinder 26, signal and electricity
Can transmitting device outer ring 22 and rotating signal it is corresponding with power transfer inner ring 23 and have spacing, do not rotating outer cylinder 26
Lower inside be equipped with the second electronics storehouse 29, circuit board is fixedly installed in the second electronics storehouse 29, in the first electronics storehouse 28
The interior coiling 19 of circuit board and rotating signal and power transfer inner ring 23 is linked together by conducting wire, outer coiling 8 with
Circuit board in second electronics storehouse 29 is linked together by conducting wire.In this way, by signal and power transfer outer ring 22 and
Rotating signal and the relative rotation of power transfer inner ring 23 and electromagnetic coupling, avoid signal and power transfer outer ring
22 and rotating signal and power transfer inner ring 23 wear and cause sealing performance to reduce, electric energy heavy losses, there is peace
It is complete reliable and the characteristics of be easily installed, operation is facilitated, is improved work efficiency, production cost is reduced.When work, the first electricity
Sub- storehouse 28, rotary steering drilling tool outer cylinder 25 and rotary core shaft 24 rotate together；The lower end of rotary core shaft 24 passes through the second electricity
Sub- storehouse 29, and have spacing with the second electronics storehouse 29；Second electronics storehouse 29 is fixed on the inside for not rotating outer cylinder 26.
Above-described embodiment 2 can be made further optimization and/or improvements according to actual needs:
As needed, bearing 27 is TC bearing.It is easily installed in this way.
As shown in attached drawing 3,4, rotating signal and power transfer inner ring 23 include upper joint sleeve 12, lower retaining ring 13 and
Insulating coating 14；Inner cylinder 15, the lower end outside of inner cylinder 15 and lower retaining ring 13 are integrally fixed in the lower end inner edge of upper joint sleeve 12
Upper inner be fixedly installed togather, be fixedly mounted on the inside of the upper end of insulating coating 14 with the lower outside of upper joint sleeve 12
Together, the lower end inside of insulating coating 14 and the upper outside of lower retaining ring 13 are fixedly installed togather, upper joint sleeve 12, lower retaining ring
13, inner seal ring chamber 16 is formed between inner cylinder 15 and insulating coating 14, is equipped with and 16 phase of inner seal ring chamber on upper joint sleeve 12
Connection upper threading hole 17, interior ferrite 18 is fixedly installed in inner seal ring chamber 16, be wound on interior ferrite 18 in around
Line 19.Interior ferrite 18 and outer ferrite 7 are the ferrite of existing public same material.
As shown in Fig. 3, it is equipped with interior installation annular groove in the upper inner of lower retaining ring 13, the lower end of inner cylinder 15 is mounted on lower block
In the interior installation annular groove of circle 13.
As shown in Fig. 3, outer installation is respectively equipped in the upper outside of the lower outside of upper joint sleeve 12 and lower retaining ring 13
Annular groove, the upper end of insulating coating 14 are fixedly mounted in the outer installation annular groove of upper joint sleeve 12, and the lower end of insulating coating 14 is fixed
It is mounted in the outer installation annular groove of lower retaining ring 13.
As needed, interior coiling 19 is waterproof copper wire；Or/and upper annular groove 20 is equipped in the upper inner of upper joint sleeve 12；
Or/and bayonet 21 is equipped in the outside of upper joint sleeve 12；Or/and inner cylinder 15 is fixedly mounted on the outside of the middle part of rotary core shaft.
Bayonet when rotating signal and power transfer inner ring 23 are fixedly mounted on the outside of rotary core shaft 24, on upper joint sleeve 12
21 are just clamped on the fixture block in 24 outside of rotary core shaft；When work, rotary steering drilling tool outer cylinder 25 and rotating signal
It is rotated together with power transfer inner ring 23 with rotary core shaft 24, will result in signal and power transfer outer ring 22 and rotation
Rotatable signal and power transfer inner ring 23 relatively rotate.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
The use process of the utility model embodiment: when work, first signal loading in the first electronics storehouse 28 to high frequency is handed over
Galvanic electricity is input to the interior coiling 19 on rotating signal and power transfer inner ring 23 by conducting wire, due to signal and electric energy
The relative rotation of transmitting device outer ring 22 and rotating signal and power transfer inner ring 23, through the phase interaction between electromagnetic field
With electric energy and signal are transferred to signal and electricity from rotating signal and power transfer inner ring 23 by non-contacting mode
Energy transmitting device outer ring 22, then by electric energy and signal by wire transmission to the second electronics storehouse 29, then will exchange by circuit
Electrotransformation is direct current required for tool, while obtaining signal, and transmit not by signal and power transfer outer ring 22 with
The influence of the relative rotation of rotating signal and power transfer inner ring 23.
Claims (15)
1. a kind of signal and power transfer outer ring, it is characterised in that including upper retaining ring, lower joint sleeve and insulation inner sleeve；Under
The upper end outer rim of connector sleeve is integrally fixed with outer cylinder, and the upper end inside of outer cylinder and the lower outside of upper retaining ring are fixedly mounted on one
It rises, is fixedly installed togather on the outside of the upper end for the inner sleeve that insulate with the lower inside of upper retaining ring, the lower end outside for the inner sleeve that insulate is under
The upper inner of connector sleeve is fixedly installed togather, and forms outer seal ring between upper retaining ring, lower joint sleeve, outer cylinder and insulation inner sleeve
Chamber is equipped with the underpass hole that is connected with external seal ring cavity on lower joint sleeve, is fixedly installed with outer iron outer seal ring is intracavitary
Oxysome is wound with outer coiling on outer ferrite.
2. signal according to claim 1 and power transfer outer ring, it is characterised in that the lower outside of upper retaining ring is set
There is outer installation annular groove, the upper end of outer cylinder is mounted in the outer installation annular groove of retaining ring and is fixedly installed togather by screw.
3. signal according to claim 1 or 2 and power transfer outer ring, it is characterised in that the lower inside of upper retaining ring
It is respectively equipped with interior installation annular groove with the upper inner of lower joint sleeve, the upper end for the inner sleeve that insulate is fixedly mounted on the interior installation of retaining ring
In annular groove, the lower end for the inner sleeve that insulate is fixedly mounted in the interior installation annular groove of lower joint sleeve.
4. signal according to claim 1 or 2 and power transfer outer ring, it is characterised in that outer coiling is waterproof copper
Line；Or/and it is equipped with lower annular groove in the lower inside of lower joint sleeve, it is equipped in the lower part of lower joint sleeve and is connected with lower annular groove
Connecting hole.
5. signal according to claim 3 and power transfer outer ring, it is characterised in that outer coiling is waterproof copper wire；
Or/and it is equipped with lower annular groove in the lower inside of lower joint sleeve, the connection being connected with lower annular groove is equipped in the lower part of lower joint sleeve
Hole.
6. a kind of short using signal and the guiding of power transfer outer ring described according to claim 1 or 2 or 3 or 4 or 5
Section, it is characterised in that including signal and power transfer outer ring, rotating signal and power transfer inner ring, rotary core
Axis, does not rotate outer cylinder at rotary steering drilling tool outer cylinder；It is fixedly installed with bearing in the upper outside of rotary core shaft, rotation is led
The inner cylinder upper end of lower end and bearing to drilling tool outer cylinder is fixedly installed togather, in rotary steering drilling tool outer cylinder
Side is equipped with the first electronics storehouse, is fixedly installed with circuit board in the first electronics storehouse, the outer cylinder lower end of bearing and does not rotate outer cylinder
Upper end is fixedly installed togather, and rotating signal and power transfer inner ring are fixedly mounted on the outside of the middle part of rotary core shaft,
The inside for not rotating outer cylinder that is fixedly mounted on of signal and power transfer outer ring, signal and power transfer outer ring and rotation
Rotatable signal is corresponding with power transfer inner ring and has spacing, is equipped with the second electronics in the lower inside for not rotating outer cylinder
Storehouse is fixedly installed with circuit board in the second electronics storehouse, and the circuit board in the first electronics storehouse and rotating signal and electric energy transmit
The interior coiling of device inner ring is linked together by conducting wire, and outer coiling is connected to the circuit board in the second electronics storehouse by conducting wire
Together.
7. guiding pipe nipple according to claim 6, it is characterised in that bearing is TC bearing.
8. guiding pipe nipple according to claim 6 or 7, it is characterised in that rotating signal and power transfer inner ring packet
Include upper joint sleeve, lower retaining ring and insulating coating；Inner cylinder, the lower end outside of inner cylinder are integrally fixed in the lower end inner edge of upper joint sleeve
It is fixedly installed togather with the upper inner of lower retaining ring, fixes and pacify with the lower outside of upper joint sleeve on the inside of the upper end of insulating coating
Be fitted together, the lower end inside of insulating coating and the upper outside of lower retaining ring are fixedly installed togather, upper joint sleeve, lower retaining ring,
Inner seal ring chamber is formed between inner cylinder and insulating coating, and the upper threading being connected with inner seal ring chamber is equipped on upper joint sleeve
Hole is fixedly installed with interior ferrite inner seal ring is intracavitary, interior coiling is wound on interior ferrite.
9. guiding pipe nipple according to claim 8, it is characterised in that the upper inner of lower retaining ring is equipped with interior installation annular groove, interior
The lower end of cylinder is mounted in the interior installation annular groove of lower retaining ring.
10. guiding pipe nipple according to claim 8, it is characterised in that the top of the lower outside of upper joint sleeve and lower retaining ring
Outside is respectively equipped with outer installation annular groove, and the upper end of insulating coating is fixedly mounted in the outer installation annular groove of upper joint sleeve, and insulation is outer
The lower end of set is fixedly mounted in the outer installation annular groove of lower retaining ring.
11. guiding pipe nipple according to claim 9, it is characterised in that the top of the lower outside of upper joint sleeve and lower retaining ring
Outside is respectively equipped with outer installation annular groove, and the upper end of insulating coating is fixedly mounted in the outer installation annular groove of upper joint sleeve, and insulation is outer
The lower end of set is fixedly mounted in the outer installation annular groove of lower retaining ring.
12. guiding pipe nipple according to claim 8, it is characterised in that interior coiling is waterproof copper wire；Or/and in upper connection
The upper inner of set is equipped with upper annular groove；Or/and bayonet is equipped in the outside of upper joint sleeve；Or/and inner cylinder is fixedly mounted on rotation
On the outside of the middle part of core axis.
13. guiding pipe nipple according to claim 9, it is characterised in that interior coiling is waterproof copper wire；Or/and in upper connection
The upper inner of set is equipped with upper annular groove；Or/and bayonet is equipped in the outside of upper joint sleeve；Or/and inner cylinder is fixedly mounted on rotation
On the outside of the middle part of core axis.
14. guiding pipe nipple according to claim 10, it is characterised in that interior coiling is waterproof copper wire；Or/and in upper connection
The upper inner of set is equipped with upper annular groove；Or/and bayonet is equipped in the outside of upper joint sleeve；Or/and inner cylinder is fixedly mounted on rotation
On the outside of the middle part of core axis.
15. guiding pipe nipple according to claim 11, it is characterised in that interior coiling is waterproof copper wire；Or/and in upper connection
The upper inner of set is equipped with upper annular groove；Or/and bayonet is equipped in the outside of upper joint sleeve；Or/and inner cylinder is fixedly mounted on rotation
On the outside of the middle part of core axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006568.8U CN208386248U (en) | 2018-01-03 | 2018-01-03 | Signal and power transfer outer ring and guiding pipe nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006568.8U CN208386248U (en) | 2018-01-03 | 2018-01-03 | Signal and power transfer outer ring and guiding pipe nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208386248U true CN208386248U (en) | 2019-01-15 |
Family
ID=64979067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820006568.8U Active CN208386248U (en) | 2018-01-03 | 2018-01-03 | Signal and power transfer outer ring and guiding pipe nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208386248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199490A (en) * | 2018-01-03 | 2018-06-22 | 中国石油集团西部钻探工程有限公司 | Signal and power transfer outer ring and guiding pipe nipple |
-
2018
- 2018-01-03 CN CN201820006568.8U patent/CN208386248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199490A (en) * | 2018-01-03 | 2018-06-22 | 中国石油集团西部钻探工程有限公司 | Signal and power transfer outer ring and guiding pipe nipple |
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Effective date of registration: 20201110 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |