CN208040306U - Small size rotary steering magnetic drive unit - Google Patents
Small size rotary steering magnetic drive unit Download PDFInfo
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- CN208040306U CN208040306U CN201820006503.3U CN201820006503U CN208040306U CN 208040306 U CN208040306 U CN 208040306U CN 201820006503 U CN201820006503 U CN 201820006503U CN 208040306 U CN208040306 U CN 208040306U
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- connector sleeve
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- magnetic pole
- erosion prevention
- mandrel
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Abstract
The utility model is related to petroleum drilling and mining technical field of tools, are a kind of small size rotary steering magnetic drive units；Including outer barrel, it is open towards right fluid erosion prevention cap, left connector sleeve, right connector sleeve, mandrel, connector and turbine；It is fixedly installed togather on the outside of the left end of left connector sleeve on the inside of the right part of fluid erosion prevention cap, guide wheel is installed between outer barrel on the outside of the right part of left connector sleeve.The utility model reasonable and compact in structure, it is easy to use, pass through being used cooperatively for outer barrel, fluid erosion prevention cap, left connector sleeve, right connector sleeve, mandrel, guide wheel, turbine, internal magnetic pole and outer magnetic pole, turbine is set to drive outer magnetic pole rotation, under interaction between magnetic pole, internal magnetic pole is rotated together with mandrel, it is embodied as circuit part and hydraulic module provides the purpose of kinetic energy, have the characteristics that safe and reliable, facilitate operation, the link for reducing energy transmission improves the transmission efficiency of energy, can adapt to that borehole size is smaller and underground complex work environment.
Description
Technical field
The utility model is related to petroleum drilling and mining technical field of tools, are a kind of small size rotary steering magnetic drive units.
Background technology
Existing rotary steerable tool is by driving turbine rotation, turbine to drive the mud of tool interior after guide wheel water conservancy diversion
Slurry electrical power generators provide electric energy for circuit part and hydraulic module, its shortcoming is that the mechanical energy of fluid passes through slurry generator
It is converted into electric energy, then mechanical energy is converted electrical energy by motor, by converting twice, energy transfer efficiency is very low.Next, when
When borehole size is smaller, due to the limitation of tool body size, be difficult to use each hydraulic module by an individual motor and
The method that pump provides high pressure liquid pressure oil has been unable to meet prior art requirement.
Invention content
The utility model provides a kind of small size rotary steering magnetic drive unit, overcome the above-mentioned prior art no
Foot can effectively solve existing apparatus there are energy transfer efficiencies to be difficult to use each hydraulic module when low, borehole size is smaller
High pressure liquid pressure oil is provided by an individual motor and pump, has been unable to meet the problem of prior art requires.
The technical solution of the utility model is realized by following measures：A kind of small size rotary steering Magnetic driving dress
It sets, including outer barrel, opening are towards right fluid erosion prevention cap, left connector sleeve, right connector sleeve, mandrel, connector and turbine；Fluid erosion prevention cap
It is fixedly installed togather on the outside of the left end of left connector sleeve on the inside of right part, it is fixed between outer barrel on the outside of the right part of left connector sleeve
Guide wheel is installed, the left part of connector and middle part are fixedly mounted in left connector sleeve, and level side is equipped in the right part of connector
To mounting hole, right connector sleeve is left part internal diameter is small, middle part and right part internal diameter are big body, and the left end of right connector sleeve is fixedly mounted
In the mounting hole of connector, the left part of mandrel is sleeved on the inside of the left part of right connector sleeve, the fixed peace on the outside of the middle part of mandrel
Equipped at least one internal magnetic pole, limited ring dais is integrally fixed on the outside of the right part of mandrel, limited ring dais is sleeved on right connection
On the inside of the right part of set, left bearing is installed between the left end and right connector sleeve of mandrel, mandrel right end and right connector sleeve it
Between at least one right bearing is installed, be installed with outer magnetic pole cover for seat in the inside middle portion of turbine, outer magnetic pole cover for seat suit
On the outside of the middle part of right connector sleeve, be installed with the outer magnetic pole equal with internal magnetic pole quantity in outer magnetic pole cover for seat, turbine with
There is spacing between outer barrel.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution：
The first spacing ring is installed on the outside of the above-mentioned left connector sleeve between fluid erosion prevention cap and guide wheel, the first spacing ring
Outside on the inside of right end and on the inside of the left end of guide wheel respectively with left connector sleeve is fixedly installed togather by key.
Above-mentioned that installation annular groove is equipped on the inside of the left part of outer barrel, the outer end of guide wheel is fixedly mounted in installation annular groove；Or/
With magnetic pole liner is installed between limited ring dais and internal magnetic pole.
The above-mentioned right part outer sheath in connector is equipped with the second spacing ring, left part outside and the left connector sleeve of the second spacing ring
Right end on the inside of be fixedly installed togather, the is equipped on the outside of the right connector sleeve between the second spacing ring and outer magnetic pole cover for seat
One sealing device, first sealing device are sleeved on the inside of the left part of turbine, are installed on the outside of the right part of the second spacing ring
Fluid erosion prevention set, the left end inside of fluid erosion prevention set and the right end outside of left connector sleeve are fixedly installed togather；Or/and in right connection
It is integrally fixed with limit chuck on the outside of the right part of set, the second sealing device is installed between outer magnetic pole cover for seat and limit chuck,
Second sealing device is sleeved on the inside of the right part of turbine.
Above-mentioned first sealing device and the second sealing device include hard alloy cover for seat, rubber seal and becket,
Together with hard alloy cover for seat, rubber seal and becket are fixedly connected sequentially from the inside to the outside.
It is above-mentioned to be installed with left bearing on the outside of the left end of mandrel, mounting groove is equipped on the inside of the left end of right connector sleeve,
The outer end of left bearing is mounted in mounting groove；Or/and right bearing there are two being fixedly mounted on the outside of the right end of mandrel, right connection
On the right end installation right bearing of set, disc spring is installed between limited ring dais and the right bearing of close limited ring dais.
The above-mentioned right end in right connector sleeve is equipped with external screw thread；Or/and connector and left connector sleeve pass through it is at least one tight
Nail is fixedly installed togather；Or/and the left part of fluid erosion prevention cap is taper left small and right large；Or/and fluid erosion prevention cap and left connection
Sealing ring is installed between set, sealing ring is installed between left connector sleeve and guide wheel.
The utility model reasonable and compact in structure, it is easy to use, pass through outer barrel, fluid erosion prevention cap, left connector sleeve, right connection
Set, mandrel, guide wheel, turbine, internal magnetic pole and outer magnetic pole are used cooperatively, and so that turbine is driven outer magnetic pole rotation, between magnetic pole
Under interaction, internal magnetic pole is rotated together with mandrel, is embodied as circuit part and hydraulic module provides the purpose of kinetic energy, have peace
Complete reliable feature, facilitates operation, reduces the link of energy transmission, improve the transmission efficiency of energy, can adapt to well
Size is smaller and underground complex work environment for eye.
Description of the drawings
Attached drawing 1 is the main view schematic cross-sectional view of the best embodiment of the utility model.
Coding in attached drawing is respectively：1 is outer barrel, and 2 be fluid erosion prevention cap, and 3 be left connector sleeve, and 4 be right connector sleeve, and 5 be core
Axis, 6 be connector, and 7 be turbine, and 8 be guide wheel, and 9 be mounting hole, and 10 be internal magnetic pole, and 11 be limited ring dais, and 12 be left bearing, 13
For right bearing, 14 be outer magnetic pole cover for seat, and 15 be outer magnetic pole, and 16 be the first spacing ring, and 17 be key, and 18 be magnetic pole liner, and 19 be the
Two spacing rings, 20 be fluid erosion prevention set, and 21 is limit chuck, and 22 be hard alloy cover for seat, and 23 be rubber seal, and 24 be metal
Ring, 25 be disc spring, and 26 be to mark closely.
Specific implementation mode
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 position relation of each component is according to specification
The Butut mode of attached drawing 1 is described, such as：The position relationship of front, rear, top, and bottom, left and right etc. is according to Figure of description 1
Butut direction determine.
The utility model is further described with reference to embodiment and attached drawing：
As shown in Fig. 1, the small size rotary steering magnetic drive unit include outer barrel 1, opening towards right fluid erosion prevention cap 2,
Left connector sleeve 3, right connector sleeve 4, mandrel 5, connector 6 and turbine 7；The left end of the right part inside and left connector sleeve 3 of fluid erosion prevention cap 2
Outside is fixedly installed togather, and is installed with guide wheel 8 between outer barrel 1 on the outside of the right part of left connector sleeve 3, connector 6
Left part and middle part are fixedly mounted in left connector sleeve 3, and the mounting hole 9 of horizontal direction, right connection are equipped in the right part of connector 6
Set 4 is the body that left part internal diameter is small, middle part and right part internal diameter are big, and the left end of right connector sleeve 4 is fixedly mounted on the installation of connector 6
In hole 9, the left part of mandrel 5 is sleeved on the inside of the left part of right connector sleeve 4, and at least one is installed on the outside of the middle part of mandrel 5
A internal magnetic pole 10, is integrally fixed with limited ring dais 11 on the outside of the right part of mandrel 5, and limited ring dais 11 is sleeved on right connector sleeve 4
Right part on the inside of, left bearing 12 is installed between the left end and right connector sleeve 4 of mandrel 5, in right end and the right connector sleeve of mandrel 5
At least one right bearing 13 is installed between 4, outer magnetic pole cover for seat 14, outer magnetic pole are installed in the inside middle portion of turbine 7
Cover for seat 14 is sleeved on the outside of the middle part of right connector sleeve 4, is installed in outer magnetic pole cover for seat 14 equal with 10 quantity of internal magnetic pole
Outer magnetic pole 15, have spacing between turbine 7 and outer barrel 1.Guide wheel 8, turbine 7, internal magnetic pole 10 and outer magnetic pole 15 are existing known
It is public；The utility model passes through outer barrel 1, fluid erosion prevention cap 2, left connector sleeve 3, right connector sleeve 4, mandrel 5, guide wheel 8, turbine 7, interior magnetic
Pole 10 and outer magnetic pole 15 are used cooperatively, and make turbine 7 that outer magnetic pole 15 be driven to rotate, under the interaction between magnetic pole, interior magnetic
Pole 10 is rotated together with mandrel 5, is embodied as circuit part and hydraulic module provides the purpose of kinetic energy, have safe and reliable spy
Point facilitates operation, reduces the link of energy transmission, improves the transmission efficiency of energy, it is smaller to can adapt to borehole size
With underground complex work environment.When work, the right end of mandrel 5 is fixedly installed togather with hydraulic pump, the right end of right connector sleeve 4
It is fixedly installed togather with the cylindrical case body of hydraulic pump, mud is flowed through from the inner cavity of outer barrel 1, and first passing through fluid erosion prevention cap 2 will
It scatter, and the ring cavity formed with outer barrel 1 along fluid erosion prevention cap 2 flows to the right, flows through guide wheel 8 and is adjusted to the flow direction of mud
It is whole, turbine 7 is again passed through, when flowing through turbine 7, mud drives turbine 7 to rotate, and it is outer that turbine 7 drives outer magnetic pole cover for seat 14 then to drive
Magnetic pole 15 rotates, and connector 6 is remained stationary as with right connector sleeve 4, under the interaction between magnetic pole, drive internal magnetic pole 10 and
Mandrel 5 rotates together, and then drives hydraulic pump rotation, kinetic energy is provided for circuit part and hydraulic module.The utility model can lead to
It crosses a hydraulic pump and provides high pressure liquid pressure oil for three hydraulic modules, reduce the link of motor and hydraulic pump in hydraulic module,
The volume for reducing hydraulic module is directly passed through the kinetic energy of turbine 7 interior by the interaction of internal magnetic pole 10 and outer magnetic pole 15
Magnetic pole 10, outer magnetic pole 15 and mandrel 5 pass to hydraulic pump, reduce the link of energy transmission, improve the transmission efficiency of energy.
In addition to this, Magnetic driving structure is contactless transmission, will not be worn, and reliable transmission and itself has overload protection.
Above-mentioned small size rotary steering magnetic drive unit can be made further optimization and/or improvements according to actual needs：
As shown in Fig. 1, the outside of the left connector sleeve 3 between fluid erosion prevention cap 2 and guide wheel 8 is equipped with the first spacing ring
16, the right end inside of the first spacing ring 16 and the left end inside of guide wheel 8 pass through key 17 with the outside of left connector sleeve 3 respectively and fix peace
It is fitted together.In this way, being limited to guide wheel 8 convenient for the first spacing ring 16.
As shown in Fig. 1, installation annular groove is equipped on the inside of the left part of outer barrel 1, the outer end of guide wheel 8 is fixedly mounted on mounting ring
In slot；Or/and magnetic pole liner 18 is installed between limited ring dais 11 and internal magnetic pole 10.In this way, being limited by magnetic pole liner 18
Determine axial position of the internal magnetic pole 10 on mandrel 5.
As shown in Fig. 1, second spacing ring 19, the left part of the second spacing ring 19 are housed in the right part outer sheath of connector 6
It is fixedly installed togather on the inside of outside and the right end of left connector sleeve 3, the right side between the second spacing ring 19 and outer magnetic pole cover for seat 14
The outside of connector sleeve 4 is equipped with first sealing device, and first sealing device is sleeved on the inside of the left part of turbine 7, in the second limit
Fluid erosion prevention set 20 is installed on the outside of the right part of ring 19, fluid erosion prevention covers on the outside of 20 left end inside and the right end of left connector sleeve 3
It is fixedly installed togather；Or/and limit chuck 21 is integrally fixed on the outside of the right part of right connector sleeve 4, in outer magnetic pole cover for seat 14
Second sealing device is installed between limit chuck 21, the second sealing device is sleeved on the inside of the right part of turbine 7.In this way, the
Two spacing rings 19 are convenient for limiting the position of left connector sleeve 3；First sealing device and the second sealing device can be prevented convenient for keeping sealing
Only mud enters in magnetic pole cover for seat, reduces the influence for magnetic pole performance.Fluid erosion prevention set 20 can effectively avoid mud to caused by
Erosion.
As shown in Fig. 1, first sealing device and the second sealing device include hard alloy cover for seat 22, rubber seal
23 and becket 24, together with hard alloy cover for seat 22, rubber seal 23 are fixedly connected sequentially from the inside to the outside with becket 24.
In this way, sealing effect can be played preferably.
As shown in Fig. 1, left bearing 12 is installed on the outside of the left end of mandrel 5, on the inside of the left end of right connector sleeve 4
Equipped with mounting groove, the outer end of left bearing 12 is mounted in mounting groove；Or/and there are two being fixedly mounted on the outside of the right end of mandrel 5
The right end of right bearing 13, right connector sleeve 4 is installed on right bearing 13, in limited ring dais 11 and the right bearing 13 close to limited ring dais 11
Between disc spring 25 is installed.In this way, left bearing 12 and right bearing 13 drive outer magnetic pole 15 to rotate convenient for turbine 7, between magnetic pole
Interaction under, internal magnetic pole 10 is rotated together with mandrel 5, is embodied as the purpose that circuit part and hydraulic module provide kinetic energy.
As shown in Fig. 1, it is equipped with external screw thread in the right end of right connector sleeve 4；Or/and connector 6 passes through with left connector sleeve 3
It is at least one to mark closely 26 and be fixedly installed togather；Or/and the left part of fluid erosion prevention cap 2 is taper left small and right large；Or/and it is anti-
Sealing ring is installed between erosion cap 2 and left connector sleeve 3, sealing ring is installed between left connector sleeve 3 and guide wheel 8.In this way, right company
External screw thread in female connector 4 is easily installed and dismantles.
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, to meet the needs of different situations according to actual needs.
Claims (15)
1. a kind of small size rotary steering magnetic drive unit, it is characterised in that fluid erosion prevention cap, Zuo Lian including outer barrel, opening towards the right side
Female connector, right connector sleeve, mandrel, connector and turbine；Pacify with fixed on the outside of the left end of left connector sleeve on the inside of the right part of fluid erosion prevention cap
It is fitted together, is installed with guide wheel between outer barrel on the outside of the right part of left connector sleeve, the left part of connector and middle part are fixed
In left connector sleeve, in the right part of connector be equipped with horizontal direction mounting hole, right connector sleeve be left part internal diameter it is small, in
Portion and the big body of right part internal diameter, the left end of right connector sleeve are fixedly mounted in the mounting hole of connector, the left part suit of mandrel
On the inside of the left part of right connector sleeve, at least one internal magnetic pole is installed on the outside of the middle part of mandrel, in the right part of mandrel
Outside is integrally fixed with limited ring dais, and limited ring dais is sleeved on the inside of the right part of right connector sleeve, in left end and the right connection of mandrel
Left bearing is installed between set, at least one right bearing is installed between the right end and right connector sleeve of mandrel, in turbine
Inside middle portion is installed with outer magnetic pole cover for seat, and outer magnetic pole cover for seat is sleeved on the outside of the middle part of right connector sleeve, in outer magnetic pole cover for seat
It is inside installed with the outer magnetic pole equal with internal magnetic pole quantity, there is spacing between turbine and outer barrel.
2. small size rotary steering magnetic drive unit according to claim 1, it is characterised in that fluid erosion prevention cap and guide wheel it
Between left connector sleeve on the outside of the first spacing ring is installed, on the inside of the right end of the first spacing ring and left end of guide wheel inside respectively with
The outside of left connector sleeve is fixedly installed togather by key.
3. small size rotary steering magnetic drive unit according to claim 1 or 2, it is characterised in that on the inside of the left part of outer barrel
Equipped with installation annular groove, the outer end of guide wheel is fixedly mounted in installation annular groove；Or/and it is installed between limited ring dais and internal magnetic pole
There is magnetic pole liner.
4. small size rotary steering magnetic drive unit according to claim 1 or 2, it is characterised in that outside the right part of connector
Side is set with the second spacing ring, is fixedly installed togather on the inside of the left part outside of the second spacing ring and the right end of left connector sleeve,
First sealing device, first sealing device suit are installed on the outside of the right connector sleeve between the second spacing ring and outer magnetic pole cover for seat
On the inside of the left part of turbine, fluid erosion prevention set, the left end inside of fluid erosion prevention set are installed on the outside of the right part of the second spacing ring
It is fixedly installed togather on the outside of the right end of left connector sleeve；Or/and integrally it is fixed with limiting card on the outside of the right part of right connector sleeve
Platform is equipped with the second sealing device between outer magnetic pole cover for seat and limit chuck, and the second sealing device is sleeved on the right part of turbine
Inside.
5. small size rotary steering magnetic drive unit according to claim 3, it is characterised in that on the outside of the right part of connector
It is set with the second spacing ring, is fixedly installed togather with the right end of left connector sleeve inside on the outside of the left part of the second spacing ring, the
First sealing device is installed on the outside of right connector sleeve between two spacing rings and outer magnetic pole cover for seat, first sealing device is sleeved on
On the inside of the left part of turbine, be installed with fluid erosion prevention set on the outside of the right part of the second spacing ring, on the inside of the left end of fluid erosion prevention set with
It is fixedly installed togather on the outside of the right end of left connector sleeve；Or/and integrally it is fixed with limiting card on the outside of the right part of right connector sleeve
Platform is equipped with the second sealing device between outer magnetic pole cover for seat and limit chuck, and the second sealing device is sleeved on the right part of turbine
Inside.
6. small size rotary steering magnetic drive unit according to claim 5, it is characterised in that first sealing device and
Two sealing devices include hard alloy cover for seat, rubber seal and becket, hard alloy cover for seat, rubber seal and metal
Ring is fixedly connected sequentially together from the inside to the outside.
7. small size rotary steering magnetic drive unit according to claim 3, it is characterised in that solid on the outside of the left end of mandrel
Dingan County is equipped with left bearing, and mounting groove is equipped on the inside of the left end of right connector sleeve, and the outer end of left bearing is mounted in mounting groove；Or/
Be fixedly mounted on the outside of the right end of mandrel there are two right bearing, on the right end installation right bearing of right connector sleeve, in limited ring dais
Disc spring is installed between the right bearing of limited ring dais.
8. small size rotary steering magnetic drive unit according to claim 4, it is characterised in that solid on the outside of the left end of mandrel
Dingan County is equipped with left bearing, and mounting groove is equipped on the inside of the left end of right connector sleeve, and the outer end of left bearing is mounted in mounting groove；Or/
Be fixedly mounted on the outside of the right end of mandrel there are two right bearing, on the right end installation right bearing of right connector sleeve, in limited ring dais
Disc spring is installed between the right bearing of limited ring dais.
9. the small size rotary steering magnetic drive unit according to claims 1 or 2 or 5 or 6, it is characterised in that a left side for mandrel
End outside is installed with left bearing, and mounting groove is equipped on the inside of the left end of right connector sleeve, and the outer end of left bearing is mounted on installation
In slot；Or/and be fixedly mounted on the outside of the right end of mandrel there are two right bearing, the right end of right connector sleeve is installed on right bearing,
Disc spring is installed between limited ring dais and the right bearing of close limited ring dais.
10. the small size rotary steering magnetic drive unit according to claims 1 or 2 or 5 or 6, it is characterised in that right connection
The right end of set is equipped with external screw thread；Or/and connector is fixedly installed togather with left connector sleeve by least one marking closely；Or/
Left part with, fluid erosion prevention cap is taper left small and right large；Or/and sealing ring is installed between fluid erosion prevention cap and left connector sleeve, it is left
Sealing ring is installed between connector sleeve and guide wheel.
11. small size rotary steering magnetic drive unit according to claim 3, it is characterised in that the right end of right connector sleeve is set
There is external screw thread；Or/and connector is fixedly installed togather with left connector sleeve by least one marking closely；Or/and fluid erosion prevention
The left part of cap is taper left small and right large；Or/and sealing ring is installed between fluid erosion prevention cap and left connector sleeve, left connector sleeve and
Sealing ring is installed between guide wheel.
12. small size rotary steering magnetic drive unit according to claim 4, it is characterised in that the right end of right connector sleeve is set
There is external screw thread；Or/and connector is fixedly installed togather with left connector sleeve by least one marking closely；Or/and fluid erosion prevention
The left part of cap is taper left small and right large；Or/and sealing ring is installed between fluid erosion prevention cap and left connector sleeve, left connector sleeve and
Sealing ring is installed between guide wheel.
13. small size rotary steering magnetic drive unit according to claim 7, it is characterised in that the right end of right connector sleeve is set
There is external screw thread；Or/and connector is fixedly installed togather with left connector sleeve by least one marking closely；Or/and fluid erosion prevention
The left part of cap is taper left small and right large；Or/and sealing ring is installed between fluid erosion prevention cap and left connector sleeve, left connector sleeve and
Sealing ring is installed between guide wheel.
14. small size rotary steering magnetic drive unit according to claim 8, it is characterised in that the right end of right connector sleeve is set
There is external screw thread；Or/and connector is fixedly installed togather with left connector sleeve by least one marking closely；Or/and fluid erosion prevention
The left part of cap is taper left small and right large；Or/and sealing ring is installed between fluid erosion prevention cap and left connector sleeve, left connector sleeve and
Sealing ring is installed between guide wheel.
15. small size rotary steering magnetic drive unit according to claim 9, it is characterised in that the right end of right connector sleeve is set
There is external screw thread；Or/and connector is fixedly installed togather with left connector sleeve by least one marking closely；Or/and fluid erosion prevention
The left part of cap is taper left small and right large；Or/and sealing ring is installed between fluid erosion prevention cap and left connector sleeve, left connector sleeve and
Sealing ring is installed between guide wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006503.3U CN208040306U (en) | 2018-01-03 | 2018-01-03 | Small size rotary steering magnetic drive unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006503.3U CN208040306U (en) | 2018-01-03 | 2018-01-03 | Small size rotary steering magnetic drive unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040306U true CN208040306U (en) | 2018-11-02 |
Family
ID=63956243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820006503.3U Active CN208040306U (en) | 2018-01-03 | 2018-01-03 | Small size rotary steering magnetic drive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397134A (en) * | 2018-01-03 | 2018-08-14 | 中国石油集团西部钻探工程有限公司 | Small size rotary steering magnetic drive unit |
-
2018
- 2018-01-03 CN CN201820006503.3U patent/CN208040306U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397134A (en) * | 2018-01-03 | 2018-08-14 | 中国石油集团西部钻探工程有限公司 | Small size rotary steering magnetic drive unit |
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Effective date of registration: 20201104 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. |