CN102720454B - Device for feeding support pipe in multi-branch horizontal well - Google Patents
Device for feeding support pipe in multi-branch horizontal well Download PDFInfo
- Publication number
- CN102720454B CN102720454B CN201210238111.7A CN201210238111A CN102720454B CN 102720454 B CN102720454 B CN 102720454B CN 201210238111 A CN201210238111 A CN 201210238111A CN 102720454 B CN102720454 B CN 102720454B
- Authority
- CN
- China
- Prior art keywords
- stay pipe
- guide shoe
- inclinometer
- horizontal well
- support pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005452 bending Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000003245 coal Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The embodiment of the invention discloses a device for feeding a support pipe in a multi-branch horizontal well. The device comprises a support pipe guiding shoe arranged at the front end of the support pipe, and a single-bending guiding shoe provided with a clinometer, wherein the single-bending guiding shoe is connected with the front end of a magnetic-free lengthening bar, the outer diameters of the single-bending guiding shoe and the magnetic-free lengthening bar are less than the inner diameter of the front end of the support pipe guiding shoe, the rear end of the magnetic-free lengthening bar is connected with the front end of a bypass joint, the outer diameter of the bypass joint is less than the inner diameter of the inner cavity of the support pipe guiding shoe and is more than the inner diameter of the front end of the supporting pipe guiding shoe, the rear end of the bypass joint is connected with a small drill pipe, and at the rear end of the bypass joint, a clinometer cable through hole is arranged in a position outside a connecting part between the bypass joint and the small drill pipe. According to the embodiment of the invention, in a process that the support pipe enters a deep place of a horizontal well under the pushing of the small drill pipe, the clinometer can obtain a displacement track and a position of the current support pipe, therefore the advancing direction of the support pipe can be regulated through regulating the bending direction of the single-bending guiding shoe, and the support pipe can enter a preset well hole of the multi-branch horizontal well.
Description
Technical field
The present invention relates to coal-bed gas exploitation field, more particularly, relate to a kind of in multi-branched horizontal well under enter the device of stay pipe.
Background technology
At present, in order to the coal bed gas in target coal seam can be gathered to greatest extent, in coal-bed gas exploitation, the well type of multi-branched horizontal well can often be adopted.Gas production contact surface is increased to improve gas production efficiency and gas production by being drilled with multiple branch horizontal well in target.
Due to during the mining of coal bed gas, the accumulation of the foreign material such as coal dust can be produced in the well of each horizontal well branch in multi-branched horizontal well due to a variety of causes, even also likely produce caving in of well.The generation of above-mentioned situation, can affect the unimpeded of horizontal well, even can cause the blocking of well, thus affects effective gas production duration of coal bed gas, gas production efficiency and gas production.
In the prior art, can adopt down the mode of stay pipe to avoid well to narrow or to block, namely, in horizontal well, as shown in Figure 1, the stay pipe 1 front end being equiped with guide shoe 2 enters now along Horizontal Well, again by entering oil pipe 3 under the inner chamber of stay pipe 1, like this, promote guide shoe 2 by oil pipe 3, stay pipe 1 can be driven to enter the depths of horizontal well.Owing to being provided with stay pipe 1 in well, so effectively ensure that horizontal well is being provided with the unimpeded of support pipeline section.
But, inventor finds through research, in prior art, by under enter the method that stay pipe ensures that horizontal well well is unimpeded and can only be applicable in U-shaped well, this is because, under enter stay pipe time, due to the direction of advance of uncontrollable stay pipe, so cannot by the predetermined well that enters under stay pipe in multi-branched horizontal well.
Due to above-mentioned technology barrier, make effective duration of the gas production of current multi-branched horizontal well, gas production efficiency and gas production often or can cave in and receive impact because of the blocking of well.
Summary of the invention
In view of this, the embodiment of the present invention provide a kind of in multi-branched horizontal well under enter the device of stay pipe, to realize stay pipe to bring into the object presetting well in multi-branched horizontal well.
The embodiment of the present invention is achieved in that
Enter a device for stay pipe under in multi-branched horizontal well, comprising:
Be installed in the stay pipe guide shoe of described stay pipe front end;
The curved guide shoe of list being equiped with inclinometer is connected with without magnetic extension bar front end; The curved guide shoe of described list and the described external diameter without magnetic extension bar are less than the internal diameter of described stay pipe guide shoe front end;
Describedly to be connected with the front end of by-pass connection without the rear end of magnetic extension bar; The external diameter of described by-pass connection is less than the inner chamber internal diameter of described stay pipe guide shoe and is greater than the internal diameter of described stay pipe guide shoe front end;
The rear end of described by-pass connection is connected with macaroni; In the rear end of described by-pass connection, the position outside the connecting portion of described by-pass connection and described macaroni is provided with inclinometer cable through hole.
Preferably, in embodiments of the present invention, described inclinometer is fixedly connected with the inclinometer seat key apparatus in the curved guide shoe of described list.
Preferably, in embodiments of the present invention, inclinometer cable fixer is also provided with in described by-pass connection.
Preferably, in embodiments of the present invention, the bent angle angle in the curved guide shoe of described list is 1.5 degree.
Preferably, in embodiments of the present invention, the described length without magnetic extension bar is 20 meters.
Preferably, in embodiments of the present invention, the stay pipe guide shoe being installed in described stay pipe front end described in is bound with described stay pipe front end and is connected.
As can be seen from above-mentioned technical scheme, in embodiments of the present invention, inclinometer is provided with in single curved guide shoe, and by the promotion of macaroni, single curved guide shoe and stay pipe is driven to enter the depths of horizontal well, due in embodiments of the present invention, the position at place, current stay pipe front end can be obtained by inclinometer, and the deformation trace of stay pipe front end, so line direction before stay pipe can be adjusted by adjusting bending towards of single curved guide shoe, thus make stay pipe can enter the well preset in multi-branched horizontal well.
Due to by the embodiment of the present invention in multi-branched horizontal well under enter the device of stay pipe, stay pipe can be provided with in branch horizontal well in multi-branched horizontal well, thus the blocking of each branch horizontal well well avoided or cave in, thus effectively extend effective duration of multi-branched horizontal well gas production, improve gas production efficiency and gas production.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 be in prior art under enter the device schematic diagram of stay pipe;
Fig. 2 for described in the embodiment of the present invention in multi-branched horizontal well under enter the device schematic diagram of stay pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to solve in prior art, enter the problem of stay pipe under in the well cannot preset at multi-branched horizontal well, embodiments providing the device entering stay pipe under in multi-branched horizontal well, as shown in Figure 2, comprising:
Be installed in the stay pipe guide shoe of stay pipe front end; The curved guide shoe 11 of list being equiped with inclinometer 12 is connected with without magnetic extension bar 13 front end; Single curved guide shoe 11 and the external diameter without magnetic extension bar 13 are less than the internal diameter of stay pipe guide shoe front end; Rear end without magnetic extension bar 13 is connected with the front end of by-pass connection 14; The external diameter of by-pass connection 14 is less than the inner chamber internal diameter of stay pipe guide shoe and is greater than the internal diameter of stay pipe guide shoe front end; The rear end of by-pass connection 14 is connected with macaroni 15; In the rear end of by-pass connection 14, by-pass connection 14 and the position outside the connecting portion of macaroni 15 are provided with the inclinometer cable through hole 16 owing to being communicated with inclinometer cable 17.
In prior art, under enter stay pipe mode be at the front end of stay pipe binding stay pipe guide shoe; Prop up in the inner chamber of the stay tube guide shoe of the one end near stay pipe front end, be provided with circular step, that is, stay pipe inner chamber is less at the fore-end internal diameter of stay pipe.Then entering oil pipe top under passing through is pressed on circular step, stay pipe just can be driven deeply to advance in horizontal well like this by promoting oil pipe.
In embodiments of the present invention, the stay pipe guide shoe identical with prior art is also included; Meanwhile, also as in the prior art, stay pipe guide shoe can be bundled in the front end of stay pipe.In addition, also include single curved guide shoe 11, the front end of single curved guide shoe 11 has certain bent angle angle with rear end, like this by the camber of the front end of the curved guide shoe 11 of adjustment list towards, that is, the bending towards of the curved guide shoe 11 of list, thus the direction of advance of guide shoe 11 can be changed.Concrete, in embodiments of the present invention, the bent angle angle of single curved guide shoe 11 can be 1.5 degree, thus can also complete required turning when not affecting single curved guide shoe 11 and normally advancing; This is because the bent angle angle of single curved guide shoe 11 is crossed to move ahead when conference makes single curved guide shoe 11 keep straight in straight horizontal well and is obstructed, and the bent angle angle too small of single curved guide shoe 11 can make single curved guide shoe 11 cannot complete the turning of the side tracking point in horizontal well.
Due in actual applications, not only need the curved guide shoe 11 of the list that can turn, also to obtain the position of implementing single curved guide shoe 11 and turning, for this reason, in embodiments of the present invention, also in single curved guide shoe 11, inclinometer 12 has been provided with, in embodiments of the present invention, the Wired System for Inclination Measurement adopted specifically can be arranged on the inclinometer seat key apparatus 19 in single curved guide shoe 11, inclinometer seat key apparatus 19 can with the connection adapters of inclinometer 12, inclinometer 12 is buckled in the inner chamber of single curved guide shoe 11; In order to avoid magnetic disturbance is to the interference of inclinometer 12, in embodiments of the present invention, be also provided with without magnetic extension bar 13, be fixedly connected with single curved guide shoe 11 without magnetic extension bar 13; Like this, inclinometer 12 can maintain certain distance to avoid magnetic disturbance with stay pipe and stay pipe guide shoe.Concrete, in embodiments of the present invention, the length without magnetic extension bar 13 can fixedly be set to 20 meters; So not only effectively can avoid magnetic disturbance, and can also measuring well segment distance.
Then, in order to moving ahead of stay pipe can be promoted, with the depths making stay pipe enter horizontal well, in embodiments of the present invention, also be provided with by-pass connection 14, the external diameter of by-pass connection 14 is less than the internal diameter of stay pipe guide shoe, and such by-pass connection 14 can enter into the inner chamber of stay pipe guide shoe; In addition, the external diameter of by-pass connection 14 is also greater than the internal diameter of the front end of stay pipe guide shoe, namely the external diameter of by-pass connection 14 is also greater than the internal diameter of circular step in stay pipe guide shoe inner chamber, the inner chamber front end being pressed in stay pipe guide shoe can be pushed up in the front end of such by-pass connection 14, thus can after by-pass connection 14 is subject to the promotion of macaroni 15, stay pipe guide shoe can be driven to move ahead, thus also just can drive moving ahead of stay pipe.
In order to advance by-pass connection 14, the rear end of by-pass connection 14 is also connected with macaroni 15; In the data sink that can be connected to along stay pipe outside well to make inclinometer cable 17, in by-pass connection 14, be also provided with inclinometer cable through hole 16; Concrete, by-pass connection 14 and the position outside the connecting portion of macaroni 15 can be located in one end of inclinometer cable through hole 16.External diameter due to macaroni 15 is less than the external diameter of by-pass connection 14, so after macaroni 15 is fixedly connected with by-pass connection 14, the rear end end face of by-pass connection 14 also has certain clearance spaces, this clearance spaces can be drilled with the front end surface that an inclinometer cable through hole 16 is communicated to by-pass connection 14, such inclinometer cable 17 is via after the inner chamber without magnetic extension bar 13, the inner chamber of stay pipe can be entered into by inclinometer cable through hole 16, thus can be connected to outside well together with stay pipe.Thus can the data receiving inclinometer 12 in outer inclinometer data sink entered.
Pass through said apparatus, constructor outside well can by obtaining the data of inclinometer, judge the running orbit of single curved guide shoe 11 and current present position, thus single curved guide shoe 11 can be worked as when arriving the position of the side tracking point of the branch horizontal well preset, by manipulate single curved guide shoe 11 bend towards make single curved guide shoe 11 enter the well of predetermined branch horizontal well.
Further, in embodiments of the present invention, the inclinometer cable through hole 16 of by-pass connection 14 is interior can also be provided with inclinometer cable fixer 18; Concrete, can in inclinometer cable through hole 16, inclinometer cable 17 be fixed in inclinometer cable through hole 16 by inclinometer cable fixer 18, like this, when inclinometer cable 17 is asynchronous with the speed of going into the well of macaroni 15, the motive force of inclinometer cable 17 can not be applied directly on inclinometer 12, thus also just avoid problem inclinometer 12 pulling being detached single curved guide shoe 11 caused therefrom.
Be provided with in the embodiment of the present invention in multi-branched horizontal well under enter the device of stay pipe when, under enter stay pipe concrete grammar be:
First, after stay pipe guide shoe has been bound in the front end of stay pipe, certain degree of depth will have been entered under stay pipe, now due to the resistance run at the initial stage stay pipe of going into the well less, so servicing unit that can be extra advances.
Then, curved for the list that inclinometer is housed guide shoe is fixedly connected with without magnetic extension bar, the cable of inclinometer is through after the inner chamber without magnetic extension bar, again through the inclinometer through hole of by-pass connection, after inclinometer cable being fixed by inclinometer cable fixer, the front end of by-pass connection is fixedly connected with without magnetic extension bar.
Then, macaroni is fixedly connected with in the rear end of by-pass connection; The subordinate in stay pipe that walks abreast enters for macaroni and inclinometer cable;
Due to single curved guide shoe and be less than stay pipe guide shoe front end without the external diameter of magnetic extension bar ring-type in the internal diameter of step, so can stay pipe guide shoe be passed; Due to the internal diameter of step in the ring-type that the external diameter of by-pass connection is greater than stay pipe guide shoe front end, so the circular step place during the inner chamber being pressed in stay pipe guide shoe can be pushed up; Now, macaroni continues to advance, and drives stay pipe to enter the depths of horizontal well.Meanwhile, by inclinometer cable, the data of inclinometer can transfer in the inclinometer data sink outside well, thus can obtain the running orbit of single curved guide shoe and stay pipe front end and current present position.By with by the data of inclinometer and predetermined under the deviational survey Data Comparison of branch well hole that enters, thus can learn whether the current location of single curved guide shoe is in the side tracking point of branch well hole, when single curved guide shoe arrives the side tracking point of the branch well hole preset, bending towards of single curved guide shoe can be adjusted, thus single curved guide shoe can be made to enter into the well of predetermined branch horizontal well.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. enter a device for stay pipe under in multi-branched horizontal well, described stay pipe front end is equiped with stay pipe guide shoe, it is characterized in that, comprising:
The curved guide shoe of list being equiped with inclinometer is connected with without magnetic extension bar front end; The curved guide shoe of described list and the described external diameter without magnetic extension bar are less than the internal diameter of described stay pipe guide shoe front end;
Describedly to be connected with the front end of by-pass connection without the rear end of magnetic extension bar; The external diameter of described by-pass connection is less than the inner chamber internal diameter of described stay pipe guide shoe and is greater than the internal diameter of described stay pipe guide shoe front end;
The rear end of described by-pass connection is connected with macaroni; In the rear end of described by-pass connection, the position outside the connecting portion of described by-pass connection and described macaroni is provided with inclinometer cable through hole.
2. device according to claim 1, it is characterized in that, described inclinometer is fixedly connected with the inclinometer seat key apparatus in the curved guide shoe of described list.
3. device according to claim 2, is characterized in that, be also provided with inclinometer cable fixer in described by-pass connection.
4. device according to claim 3, it is characterized in that, the bent angle angle of the curved guide shoe of described list is 1.5 degree.
5. device according to claim 4, it is characterized in that, the described length without magnetic extension bar is 20 meters.
6. device according to claim 5, is characterized in that, described in be installed in described stay pipe front end stay pipe guide shoe bind with described stay pipe front end and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238111.7A CN102720454B (en) | 2012-07-10 | 2012-07-10 | Device for feeding support pipe in multi-branch horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238111.7A CN102720454B (en) | 2012-07-10 | 2012-07-10 | Device for feeding support pipe in multi-branch horizontal well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720454A CN102720454A (en) | 2012-10-10 |
| CN102720454B true CN102720454B (en) | 2015-04-15 |
Family
ID=46946303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210238111.7A Active CN102720454B (en) | 2012-07-10 | 2012-07-10 | Device for feeding support pipe in multi-branch horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720454B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508380A (en) * | 2002-12-18 | 2004-06-30 | 杜晓瑞 | Ultrashort curvature leve well drilling and completion method and apparatus thereof |
| CN2700556Y (en) * | 2004-04-16 | 2005-05-18 | 辽河石油勘探局 | Wireline steering tool for horizontal well with ultra-short radius |
| CN2793288Y (en) * | 2005-04-27 | 2006-07-05 | 大庆石油管理局 | Branched double-pipe guider under well |
| WO2009142509A1 (en) * | 2008-05-23 | 2009-11-26 | Drillco As | Pipe string landing device and a bore hole cementing method |
| CN101787855A (en) * | 2010-03-11 | 2010-07-28 | 中国石油集团川庆钻探工程有限公司 | Reentry device of later-operation pipe column of multi-branch well |
| CN202645481U (en) * | 2012-07-10 | 2013-01-02 | 晋城奥瑞安能源技术开发有限公司 | Device capable of placing support column in multi-branch horizontal well |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6923273B2 (en) * | 1997-10-27 | 2005-08-02 | Halliburton Energy Services, Inc. | Well system |
| WO2008157428A2 (en) * | 2007-06-14 | 2008-12-24 | Western Well Tool, Inc. | Electrically powered tractor |
-
2012
- 2012-07-10 CN CN201210238111.7A patent/CN102720454B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508380A (en) * | 2002-12-18 | 2004-06-30 | 杜晓瑞 | Ultrashort curvature leve well drilling and completion method and apparatus thereof |
| CN2700556Y (en) * | 2004-04-16 | 2005-05-18 | 辽河石油勘探局 | Wireline steering tool for horizontal well with ultra-short radius |
| CN2793288Y (en) * | 2005-04-27 | 2006-07-05 | 大庆石油管理局 | Branched double-pipe guider under well |
| WO2009142509A1 (en) * | 2008-05-23 | 2009-11-26 | Drillco As | Pipe string landing device and a bore hole cementing method |
| CN101787855A (en) * | 2010-03-11 | 2010-07-28 | 中国石油集团川庆钻探工程有限公司 | Reentry device of later-operation pipe column of multi-branch well |
| CN202645481U (en) * | 2012-07-10 | 2013-01-02 | 晋城奥瑞安能源技术开发有限公司 | Device capable of placing support column in multi-branch horizontal well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102720454A (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103118832B (en) | pipeline insertion system | |
| WO2008129128A8 (en) | Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product | |
| CN103899349B (en) | A kind of pre-pumping method of coal-bed gas and drainage holes radial direction creep into guiding device | |
| CN203961989U (en) | A kind of full section rock drilling stand for the short benching tunnelling method construction in tunnel | |
| RU2612186C1 (en) | Device of deflecting wedge for side hole | |
| CN104500075A (en) | Construction method of cutting underground obstacle with wire saw | |
| CN104500085A (en) | Spiral unearthed following jacking pipe curtain machine | |
| CN102080530A (en) | Method for constructing horizontal coal bed gas well and vertical drainage and mining well | |
| WO2014116119A1 (en) | Inclined conductor device | |
| WO2017167780A3 (en) | Drill pipe, and system and method for laying a pipeline | |
| CN102720454B (en) | Device for feeding support pipe in multi-branch horizontal well | |
| CN104343424A (en) | Coalbed-methane horizontal-well PE (poly ethylene) screen pipe well completion application process method | |
| CN102733769B (en) | Method for landing supporting tube in multi-branch horizontal well | |
| CN202645481U (en) | Device capable of placing support column in multi-branch horizontal well | |
| CN207229113U (en) | A kind of pipe curtain construction multiaxis power head and pipe row's jacking tube curtain machine with the power head | |
| CN101716634A (en) | Automatic laser tracking positioning device and method for straightening drill pipe of oil well | |
| CN202706912U (en) | Integral push unit of drilling machine | |
| CN107327305A (en) | A kind of pipe curtain construction multiaxis unit head and pipe row's jacking tube curtain machine with the unit head | |
| CN205056737U (en) | Spiral pipe pitch adjustment mechanism of bending machine | |
| CN206158726U (en) | Drilling through -hole survey device | |
| CN103496560B (en) | A kind of material collection transmitting device | |
| CN210289779U (en) | Simulation pipe jacking pipe joint for pipe jacking tunneling construction simulation test | |
| CN107559017A (en) | Tunnel Combined rope saw | |
| CN208745372U (en) | A kind of grouting cable anchor Grouting Pipe hot melt socket equipment | |
| CN203822360U (en) | Radialdrilling guide device for coal seam gas preliminary extraction hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240205 Address after: 1001A, 10th Floor, Building 1, Zone 4, No. 81 Beiqing Road, Haidian District, Beijing, 100094 Patentee after: Beijing Orion Energy Technology Development Co.,Ltd. Country or region after: China Address before: 048000 South Ring Road, Jincheng City, Shanxi Province (Room 304, Tobacco Company Family Courtyard) Patentee before: JINCHENG ORION ENERGY TECHNOLOGY & DEVELOPMENT Inc. Country or region before: China |
|
| TR01 | Transfer of patent right |