CN106907526A - The relief line fixing device of oil drilling - Google Patents
The relief line fixing device of oil drilling Download PDFInfo
- Publication number
- CN106907526A CN106907526A CN201710242462.8A CN201710242462A CN106907526A CN 106907526 A CN106907526 A CN 106907526A CN 201710242462 A CN201710242462 A CN 201710242462A CN 106907526 A CN106907526 A CN 106907526A
- Authority
- CN
- China
- Prior art keywords
- grip block
- circular hole
- relief line
- fixed structure
- height adjustable
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003208 petroleum Substances 0.000 claims abstract description 11
- 230000007306 turnover Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 13
- 230000005713 exacerbation Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013070 change management Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/10—Devices to locate articles in containers
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a kind of relief line fixing device of oil drilling, and in particular to field of oil drilling, the relief line fixing device of the oil drilling solves the problems, such as that relief line can not adjust height after fixation in the prior art.The relief line fixing device of the oil drilling, including pedestal and Height Adjustable fixed structure, wherein：At least part of section of blowout of petroleum well pipeline is detachably secured on the pedestal by the Height Adjustable fixed structure, the Height Adjustable fixed structure is detachable fixed structure, the maximum bearing of trend that the blowout of petroleum well pipeline is fixed on the section on the pedestal by the Height Adjustable fixed structure is parallel with horizontal direction, and the Height Adjustable fixed structure can at least adjust the position height of the maximum bearing of trend of the section fixed by it on the blowout of petroleum well pipeline.The present invention is for adjustable-height after the relief line fixation for realizing field of oil drilling.
Description
Technical field
The invention belongs to field of oil drilling, and in particular to a kind of relief line fixing device of oil drilling.
Background technology
Current oil drilling long campaigns field work, relief line as oil drilling well control device a part,
Wherein play vital effect.Due to the non-stationary flow of hypsography or tube fluid medium (mud, oil, gas and water etc.)
Dynamic, such as pressure fluctuation, mobility change, medium replace factor, cause the relief line lifting or swing of weak constraint or few constraint；
There is the place of elbow, under the effect of vibration that flow field induces, or even " stretching " effect can be produced.Additionally, briquetting size, weight,
Situations such as fixing point Position Design is unreasonable, releases easily fixed constraint, it is also possible to cause outside piping failure, oil gas
Stream.Therefore, good fixation is not accomplished to relief line, may thus triggers serious security incident.
From the point of view of current investigation situation, relief line generally to pick out 75 meters or so of well head, it is necessary to straight installation,
Front and rear cement foundation pier is fixed, 10-15 meters of foundation pier constant spacing, and fixing bolt unification M27, exit is consolidated using double pier double cards
It is fixed, there is well site ground in reality and be uneven, cement foundation pier can not at any time adjust height with pipeline, be moved usually using crane
Dynamic pipeline, manually shoulders lift cement foundation pier, is moved with crane and there is serious potential safety hazard, wastes time and energy, and movement is easily made
Into pipeline bending pipeline, pipeline is caused to adjust difficult, so as to cause the installation requirement of influence oil drilling well control.
The content of the invention
The present invention proposes a kind of relief line fixing device of oil drilling, solves relief line in the prior art and exists
The problem of height can not be adjusted after fixation.
The technical proposal of the invention is realized in this way：A kind of relief line fixing device of oil drilling, including pedestal
And Height Adjustable fixed structure, wherein：At least part of section of blowout of petroleum well pipeline is by described Height Adjustable
Fixed structure is detachably secured on the pedestal, and the Height Adjustable fixed structure is detachable fixed structure, described
Blowout of petroleum well pipeline is fixed on the maximum bearing of trend of the section on the pedestal by the Height Adjustable fixed structure
Parallel with horizontal direction, the Height Adjustable fixed structure can at least be adjusted to be consolidated on the blowout of petroleum well pipeline by it
The position height of the maximum bearing of trend of fixed section.Described relief line fixing device, after fixed relief line, by institute
Height Adjustable fixed structure regulation relief line height is stated to be required to meet rugged ground.
Optionally, the pedestal includes base body and is arranged on the base body to be used to fix the height adjustable
Save the support member of fixed structure；One end of the support member is fixed on the base body, described Height Adjustable solid
Fixed structure is connected in the support member, and can be moved up and down along the support member, and the support member is provided with fixation
The keeper of the Height Adjustable fixed structure.
Optionally, the base body includes metal shell and casing cover, and the metal shell is built with exacerbation material, institute
State casing cover to be welded at the shell aperture, the exacerbation material is enclosed in the enclosure.
Optionally, the base body is truncated rectangular pyramids shape；Two relative tops of side of the base body, prolong respectively
Stretch out the grasping part of energy suspension cord.
Optionally, the cross section of the grasping part is circle, and the grasping part free end radially prolongs to surrounding
Place's annulus row projection is stretched, the plane of symmetry of two sides of two grasping parts on being connected is symmetrical.Grasping part sets
Put, be easy to crane to sling and the pedestal and be moved to the position of needs.
Optionally, the support member includes that two have externally threaded threaded post, and two threaded posts are vertical side by side
It is fixed on above the base body, the keeper is the nut matched with the external screw thread, and is enclosed within the threaded post
On, it is cased with nut described at least two in any threaded post.
Optionally, the Height Adjustable fixed structure includes upper grip block and lower grip block, the upper grip block and institute
State the grasping part that the relief line is constituted between lower grip block.
Optionally, the upper grip block two ends are straight, and middle part is circular arc, the straight two ends difference of the upper grip block
It is provided with the first circular hole；The lower grip block includes first time grip block and second time grip block, first time grip block and the
Two times grip blocks are respectively arranged at two ends with semicircle orifice, and first time grip block and second time the arranged side by side of grip block make correspondence
The semicircle orifice of position constitutes the second circular hole；The upper grip block is located at lower grip block top, first circular hole and described second
The internal diameter of circular hole is all higher than the external diameter of the threaded post and less than the external diameter of the nut, and the upper grip block passes through described first
Circular hole is enclosed within two threaded posts, and the lower grip block is enclosed within two threaded posts by second circular hole,
And first circular hole and second circular hole are located between two nuts, and the screw thread is fixed on by the nut
On post.The upper grip block and lower grip block simple structure, assembly and disassembly are convenient.
Optionally, the also turnover device including relief line, the turnover device includes frame body, the frame body
The 3rd circular hole is provided with, a relief line is fixed on the frame body by the 3rd circular hole described at least two,
3rd circular hole of the fixed same relief line constitutes one group of the 3rd circular hole group, and the turnover device includes at least two groups institutes
The 3rd circular hole group is stated, the turnover device fixes at least two relief lines simultaneously by the 3rd circular hole group.
Optionally, the 3rd circular hole includes two the 3rd semicircle orifices, and the frame body is in any 3rd circular hole
Position be detachably connected.Frame body is taken apart when the relief line is installed, the relief line is located at the described 3rd
In circular hole, then frame body is assembled；When needing to take out relief line, first frame body is taken apart, further take out relief line；
Realize conveniently picking and placeing for relief line.
Beneficial effects of the present invention are：Described relief line fixing device, after fixed relief line, by the height
Adjustable fixed structure regulation relief line height is required with meeting rugged ground.
Optimal technical scheme in many technical schemes that the present invention is provided can also produce following technique effect, the height
The adjustable fixed structure regulation height of degree and dismounting are easy to assembly；The base body is provided with grasping part, facilitates crane transport point
State base body；Relief line turnover rack, used as the storage of relief line, conveying arrangement, it is special to be truly realized special frame, specification
Change management, relief line leaves about phenomenon everywhere in solving actual conditions, it is ensured that standing intact for pipeline, extend and use the longevity
Life, prevents the potential safety hazard because not coming by established procedure hanging belt, and so as to realize standardized management philosophy, advantage is to save people
Power resource, improves operating efficiency, it is to avoid single repetition operation
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the adjustable fixed structure of Liftable of the invention；
Fig. 2 is the structural representation of the lower grip block of Height Adjustable fixed structure of the invention；
Fig. 3 is the structural representation of turnover device of the invention.
1- base bodies in figure；12- grasping parts；21- threaded posts；22- nuts；The upper grip blocks of 31-；Grip block under 32-；
First time grip block of 321-；Second time grip block of 322-；4- frame bodies；The circular holes of 41- the 3rd；5- relief lines.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned
Other embodiment, belongs to the scope that the present invention is protected.
Embodiment 1
As shown in Figure 1-2, the relief line fixing device of the oil drilling described in the present embodiment, including pedestal and height
Adjustable fixed structure, wherein：At least part of section of blowout of petroleum well pipeline 5 passes through the Height Adjustable fixed structure
It is detachably secured on the pedestal, the Height Adjustable fixed structure is detachable fixed structure, the oil drilling
Relief line 5 is fixed on maximum bearing of trend and the level side of the section on the pedestal by the Height Adjustable fixed structure
To parallel, the Height Adjustable fixed structure can at least adjust the area fixed by it on the blowout of petroleum well pipeline 5
The position height of the maximum bearing of trend of section.
Used as optional implementation method, the pedestal includes base body and is arranged on the base body to be used to fix
The support member of the Height Adjustable fixed structure；One end of the support member is fixed on the base body 1, described
Height Adjustable fixed structure is connected in the support member, and can be moved up and down along the support member, the supporting part
Part is provided with the keeper of the fixation Height Adjustable fixed structure.
Used as optional implementation method, the base body 1 includes metal shell and casing cover, and the metal shell is built-in
There is exacerbation material, the casing cover is welded at the shell aperture, the exacerbation material is enclosed in the enclosure.
Used as optional implementation method, the exacerbation material is cement.
Used as optional implementation method, the base body 1 is truncated rectangular pyramids shape；Two relative sides of the base body 1
The top in face, each extends over out the grasping part 12 of energy suspension cord.
Used as optional implementation method, the cross section of the grasping part 12 is circle, and the free end edge of the grasping part 12
Place's annulus row is raised to extending around for radial direction, and two grasping parts 12 are symmetrical on two sides being connected
Face is symmetrical.
Used as optional implementation method, the support member includes that two have externally threaded threaded post 21, described in two
Threaded post 21 is fixed on above the base body 1 side by side vertically, and the keeper is the nut matched with the external screw thread
22, and be enclosed within the threaded post 21, it is cased with nut 22 described at least two in any threaded post 21.
Used as optional implementation method, the Height Adjustable fixed structure includes upper grip block 31 and lower grip block 32,
The grasping part of the relief line 5 is constituted between the upper grip block 31 and the lower grip block 32.
Used as optional implementation method, the two ends of upper grip block 31 are straight, and middle part is circular arc, the upper grip block 31
Straight be respectively arranged at two ends with the first circular hole；The lower grip block 32 includes first time grip block 321 and second time grip block
322, first time grip block 321 and second time grip block 322 are respectively arranged at two ends with semicircle orifice, first time grip block
321 and the semicircle orifice for making correspondence position arranged side by side of second time grip block 322 constitute the second circular hole；The upper grip block 31
In the top of lower grip block 32, the internal diameter of first circular hole and second circular hole is all higher than the external diameter of the threaded post 21 and small
In the external diameter of the nut 22, the upper grip block 31 is enclosed within two threaded posts 21 by first circular hole, and institute
Lower grip block 32 is stated to be enclosed within two threaded posts 21 by second circular hole, and first circular hole and second circle
Hole position is fixed in the threaded post 21 between two nuts 22 by the nut 22.
Embodiment 2
As shown in figure 3, also including the turnover device of relief line 5 described in the present embodiment, the turnover device includes frame
Frame body 4, the frame body 4 is provided with the 3rd circular hole 41, and a relief line 5 is by the 3rd circle described at least two
Hole 41 is fixed on the frame body 4, and the 3rd circular hole 41 of the fixed same relief line 5 constitutes one group of the 3rd circular hole
41 groups, the turnover device includes 41 groups of the 3rd circular hole at least described in two groups, and the turnover device passes through the 3rd circular hole 41
Group fixes at least two relief lines 5 simultaneously.
Used as optional implementation method, the 3rd circular hole 41 includes two the 3rd semicircle orifices, and the frame body 4 is in office
The position of the 3rd circular hole 41 is detachably connected described in one.
As optional implementation method, after the relief line 5 loads the frame body 4, can after the frame body 4
Bundle fixed by rope or be bolted.
As optional implementation method, it is additionally provided with the frame body 4 and is easy to crane to hang hook.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. the relief line fixing device of a kind of oil drilling, it is characterised in that including pedestal and Height Adjustable fixed knot
Structure, wherein：At least part of section of blowout of petroleum well pipeline (5) is detachably fixed by the Height Adjustable fixed structure
On the pedestal, the Height Adjustable fixed structure is detachable fixed structure, the blowout of petroleum well pipeline (5)
The maximum bearing of trend of the section being fixed on by the Height Adjustable fixed structure on the pedestal is parallel with horizontal direction,
The Height Adjustable fixed structure can at least adjust the maximum of the section fixed by it on the blowout of petroleum well pipeline (5)
The position height of bearing of trend.
2. relief line fixing device according to claim 1, it is characterised in that the pedestal includes base body and sets
Put is used for the support member for fixing the Height Adjustable fixed structure on the base body；One end of the support member
It is fixed on the base body (1), the Height Adjustable fixed structure is connected in the support member, and can be along described
Support member is moved up and down, and the support member is provided with the keeper of the fixation Height Adjustable fixed structure.
3. relief line fixing device according to claim 2, it is characterised in that the base body (1) is including metal
Shell and casing cover, the metal shell are welded at the shell aperture built with material, the casing cover is aggravated, will be described
Aggravate material and be enclosed in the enclosure.
4. relief line fixing device according to claim 3, it is characterised in that the base body (1) is truncated rectangular pyramids
Shape；Two relative tops of side of the base body (1), each extend over out the grasping part (12) of energy suspension cord.
5. relief line fixing device according to claim 4, it is characterised in that the cross section of the grasping part (12) is
Circle, and the grasping part (12) free end is radially to raised, two grasping parts that extend around place's annulus row
(12) plane of symmetry of two sides on being connected is symmetrical.
6. relief line fixing device according to claim 2, it is characterised in that the support member has including two
Externally threaded threaded post (21), two threaded posts (21) are fixed on above the base body (1) side by side vertically, described
Keeper is the nut (22) matched with the external screw thread, and is enclosed within the threaded post (21), any threaded post (21)
On be cased with nut described at least two (22).
7. relief line fixing device according to claim 6, it is characterised in that the Height Adjustable fixed structure bag
Grip block (31) and lower grip block (32) are included, is put described in composition between the upper grip block (31) and the lower grip block (32)
The grasping part of jet pipe line (5).
8. relief line fixing device according to claim 7, it is characterised in that the upper grip block (31) two is held level with both hands
Directly, middle part is circular arc, and the straight of the upper grip block (31) is respectively arranged at two ends with the first circular hole；The lower grip block (32)
Including first time grip block (321) and second time grip block (322), first time grip block (321) and second time grip block
(322) be respectively arranged at two ends with semicircle orifice, first time grip block (321) and second time grip block (322) it is arranged side by side
The semicircle orifice of correspondence position is set to constitute the second circular hole；The upper grip block (31) is positioned at lower grip block (32) top, described first
The internal diameter of circular hole and second circular hole is all higher than the external diameter of the threaded post (21) and less than the external diameter of the nut (22), institute
Grip block (31) is stated to be enclosed within two threaded posts (21) by first circular hole, and the lower grip block (32) passes through
Second circular hole is enclosed within two threaded posts (21), and first circular hole and second circular hole are located at described in two
Between nut (22), and it is fixed in the threaded post (21) by the nut (22).
9. according to any described relief line fixing devices of claim 1-7, it is characterised in that also including relief line (5)
Turnover device, the turnover device include frame body (4), the frame body (4) is provided with the 3rd circular hole (41), described
A piece relief line (5) is fixed on the frame body (4) by the 3rd circular hole (41) described at least two, fixed same
3rd circular hole (41) of the relief line (5) constitutes one group of the 3rd circular hole (41) group, and the turnover device includes at least two groups
3rd circular hole (41) group, the turnover device organizes fixed at least two open flows simultaneously by the 3rd circular hole (41)
Pipeline (5).
10. relief line fixing device according to claim 9, it is characterised in that the 3rd circular hole (41) is including two
Individual 3rd semicircle orifice, the frame body (4) is detachably connected in the position of any 3rd circular hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710242462.8A CN106907526A (en) | 2017-04-13 | 2017-04-13 | The relief line fixing device of oil drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710242462.8A CN106907526A (en) | 2017-04-13 | 2017-04-13 | The relief line fixing device of oil drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106907526A true CN106907526A (en) | 2017-06-30 |
Family
ID=59209437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710242462.8A Pending CN106907526A (en) | 2017-04-13 | 2017-04-13 | The relief line fixing device of oil drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106907526A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493770A (en) * | 2011-12-15 | 2012-06-13 | 中国石油集团西部钻探工程有限公司 | Lifting type corner foundation |
| JP2013181369A (en) * | 2012-03-05 | 2013-09-12 | Kubota Corp | Pipeline clamping tool and pipeline fixed structure of work machine |
| CN203932881U (en) * | 2014-04-21 | 2014-11-05 | 浙江中博信息工程有限公司 | Novel multiplex fast cable tubing fixture side by side |
| CN204942764U (en) * | 2015-08-13 | 2016-01-06 | 中国石油天然气股份有限公司 | Pipeline buttress |
| CN205689904U (en) * | 2016-06-07 | 2016-11-16 | 深圳市宝鹰建设集团股份有限公司 | A kind of adjustable pipeline emergency support |
-
2017
- 2017-04-13 CN CN201710242462.8A patent/CN106907526A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493770A (en) * | 2011-12-15 | 2012-06-13 | 中国石油集团西部钻探工程有限公司 | Lifting type corner foundation |
| JP2013181369A (en) * | 2012-03-05 | 2013-09-12 | Kubota Corp | Pipeline clamping tool and pipeline fixed structure of work machine |
| CN203932881U (en) * | 2014-04-21 | 2014-11-05 | 浙江中博信息工程有限公司 | Novel multiplex fast cable tubing fixture side by side |
| CN204942764U (en) * | 2015-08-13 | 2016-01-06 | 中国石油天然气股份有限公司 | Pipeline buttress |
| CN205689904U (en) * | 2016-06-07 | 2016-11-16 | 深圳市宝鹰建设集团股份有限公司 | A kind of adjustable pipeline emergency support |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |
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| RJ01 | Rejection of invention patent application after publication |