CN103883589B - The most electro-hydraulic distributor - Google Patents
The most electro-hydraulic distributor Download PDFInfo
- Publication number
- CN103883589B CN103883589B CN201410105268.1A CN201410105268A CN103883589B CN 103883589 B CN103883589 B CN 103883589B CN 201410105268 A CN201410105268 A CN 201410105268A CN 103883589 B CN103883589 B CN 103883589B
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- Prior art keywords
- hydraulic
- underwater
- under water
- umbilical cables
- head
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000009826 distribution Methods 0.000 claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 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 15
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims 1
- 210000003954 umbilical cord Anatomy 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The most electro-hydraulic distributor of one, including: a pedestal, the umbilical cables terminal being arranged on pedestal, fly line puts module temporarily, underwater hydraulic distribution module, electrical distribution module under water, electric by the water surface of one umbilical cables, hydraulic power signal is transferred in umbilical cables terminal, and achieve hydraulic pressure in umbilical cables terminal, electric signal is transmitted to distribution under water from the water surface, then, again will be electrically, hydraulic pressure signal is transferred to electrical distribution module and underwater hydraulic under water and distributes in module, electrical input terminal mouth is connected with electric output port by electrical distribution module by coupling box under water under water, hydraulic input port is connected with hydraulic pressure output port by hydraulic line and constitutes electric for the operation of underwater multiplex production facility by underwater hydraulic distribution module, the distribution path that hydraulic pressure is complete.The present invention only needs the umbilical cables just can be by hydraulic pressure, be electrically allocated, so that it may meets multiple underwater production facility and runs needs；Greatly reduce the usage amount of umbilical cables and relevant installation cost.
Description
Technical field
Underwater production facility of the present invention control, particularly relate to a kind of can be by the electric air-liquid in a umbilical cables
Pressure signal distributes to the most electro-hydraulic distributor of the most multiple production facility.Belong to Offshore Engineering neck
Territory.
Background technology
Substantial amounts of petroleum resources has been contained at deep-sea, and the new technology constantly occurred promotes deep water and ultra-deep-water
The development of petroleum development engineering.Although the time of deep-sea oil exploitation is shorter, but technological innovation emerges in an endless stream,
Achieve the achievement attracted people's attention.Subsea production system is relatively low due to its development cost, and depth of water scope adapts to
Extensively, reliability is high, by the feature that environmental influence is little, by more and more extensive in deep-sea oil is developed
Ground uses.Subsea Production Control System is then the important component part of subsea production system, is also deep water
One of core technology of exploitation.Subsea Production Control System the equipment of subsea production system is controlled with
And information is transmitted and feedback, is the nerve center of subsea production system.Along with the progress of technology, give birth under water
Produce the mode controlled developing the most always.
On existing underwater installation, each remote control terminal needs one from the special navel of the independence of the water surface
Band cable, owing to underwater installation is more, and each underwater installation needs the independence from the water surface special
Umbilical cables, therefore, needed for causing underwater installation, umbilical cables is too many, and heavy owing to umbilical cables size is big,
Cause its material and installation maintenance cost higher.
Summary of the invention
Present invention is primarily targeted at the disadvantages mentioned above overcoming prior art to exist, and provide one under water
Electro-hydraulic distributor, multiple underwater production facilities just can be run hydraulic pressure, electricity by piece umbilical cables of its need
Gas signal is allocated, so that it may for the operation of the most multiple production facilities, solves umbilical cables due to multiple navels
The problem that the material caused with cable is higher with installing maintenance cost.
It is an object of the invention to be realized by techniques below scheme:
The most electro-hydraulic distributor of one, it is characterised in that: including: a pedestal, be arranged on pedestal
Umbilical cables terminal, fly line put module, underwater hydraulic distribution module, under water electrical distribution module, a navel temporarily
With cable, electric, the hydraulic power signal of the water surface are transferred in umbilical cables terminal, and real in umbilical cables terminal
Show and hydraulic pressure, electric signal have been transmitted to distribution under water from the water surface, then, more temporary via being located at fly line
Put the electric fly line in module and electric, hydraulic pressure signal are transferred to electrical distribution module under water by hydraulic pressure fly line
With in underwater hydraulic distribution module, electrical distribution module is by being located at the coupling box under water of inside by electricity under water
Gas input port is connected with electric output port, and underwater hydraulic distribution module is defeated by hydraulic pressure by hydraulic line
Inbound port is connected with hydraulic pressure output port, constitutes electric, the hydraulic pressure run for underwater multiplex production facility
Complete distribution path.
Described pedestal includes: a base framework, the pedestal hanger being distributed on four angles of base framework, base
A tape splicing hole steel plate it is connected with below seat frame frame.
Described umbilical cables terminal specifically includes that a umbilical cables terminal box body being fixed on base framework, peace
The first underwater hydraulic be contained in the umbilical cables on umbilical cables terminal box body, being arranged on umbilical cables terminal box body
Fly head to fix end, be arranged on the first underwater robot operating handle on umbilical cables terminal box body surface, installation
The most electrically fly the fixing end of head on the first of umbilical cables terminal box body surface, be arranged on umbilical cables terminal box body
Several pieces first checker plates above.
Described fly line is put module temporarily and is specifically included that the fly line under water being fixed on base framework puts module frame temporarily
Frame, it is arranged on the second underwater hydraulic that fly line under water puts on module frame temporarily and flies the fixing end of head, second under water
Electrically fly the fixing end of head, the second underwater robot operating handle.
Described underwater hydraulic distribution module specifically includes that the underwater hydraulic distribution mould being fixed on base framework
Block frame, several pieces second checker plates being arranged on underwater hydraulic distribution module frame, the 3rd underwater
People's operating handle, the 3rd underwater hydraulic fly the fixing end of head, and the 3rd underwater hydraulic flies head to be fixed end and pass through liquid
Pressure fly line flies the fixing end of head and is connected with the first underwater hydraulic in umbilical cables terminal, and by being located at liquid under water
Hydraulic pressure is allocated by pressure distribution module frame interior metal hydraulic line.
The described module of electrical distribution under water specifically includes that the electrical distribution mould under water being fixed on base framework
Block frame, the 4th underwater robot operating handle being arranged on electrical distribution module frame under water, several pieces
3rd checker plate, the 3rd the most electrically flying the fixing end of head, the 3rd the most electrically flies the fixing end of head by electricity
Gas fly line the most electrically flies the fixing end of head and is connected with first be located in umbilical cables terminal, and by being located at water
Under lower electrical distribution module frame internal water, electric signal is allocated by coupling box.
Described first underwater hydraulic flies the fixing end of head, the second underwater hydraulic flies the fixing end of head, the 3rd liquid under water
Pressure flies head and fixes end and include: a tubular structure, the end face of tubular structure are prominent disc structure, use spiral shell
Bolt is fixed in umbilical cables terminal, underwater hydraulic distribution module and under water by through hole uniform on disk
Putting temporarily in module, the bottom surface of tubular structure is evenly equipped with multichannel dedicated hydraulic joint under water.
Described first the most electrically fly the fixing end of head, second the most electrically fly the fixing end of head, the 3rd the most electric
Gas flies head to be fixed end and includes: a most special electrical connector, the surface band of the most special electrical connector
There is the card of uniformly distributed round, and be fixed in umbilical cables terminal, under water electrical distribution module by bolt
Put the most temporarily in module.
Described first checker plate, the second checker plate, the 3rd checker plate be: connects on the steel plate that centre is emptied
The net metal steel wire intersected to form, steel plate is uniformly distributed on peripheries with hole.
Beneficial effects of the present invention: due to the fact that employing technique scheme, piece umbilical cables of its need
Just can be by hydraulic pressure, be electrically allocated, so that it may meet multiple underwater production facility and run needs；Significantly
Reduce the usage amount of umbilical cables and relevant installation cost.
Accompanying drawing explanation
Fig. 1 is the front view of present configuration.
Fig. 2 is the top view of present configuration.
Major Symbol explanation in figure:
1. umbilical cables, 2. underwater hydraulic fly head fixing end, 3. underwater robot operating handle, the most electric
Gas flies the fixing end of head, 5. umbilical cables terminal box body, 6. underwater robot operating handle, the most under water fly line are temporary
Put module frame, 8. underwater hydraulic distribution module frame, 9. underwater robot operating handle, the most under water
Hydraulic pressure fly the fixing end of head, 11. underwater robot operating handles, 12. electric fly lines, 13. checker plates, 14.
The most electrically fly the fixing end of head, 15. electrical distribution module frame, 16. pedestal hangers, 17. frame pedestals under water
Frame, 18. hydraulic pressure fly lines, 19. checker plates, 20. underwater hydraulics fly the fixing end of head, 21. the most electrically fly head
Fixing end, 22. steel plates with holes, 23. checker plates.
Detailed description of the invention
Such as Fig. 1, shown in Fig. 2, the invention mainly comprises: a pedestal, the umbilical cables being arranged on pedestal are eventually
End, fly line put module, underwater hydraulic distribution module, under water electrical distribution module temporarily, and a umbilical cables is by water
Electric, the hydraulic power signal in face are transferred in umbilical cables terminal, and achieve liquid in umbilical cables terminal
Pressure, electric signal are transmitted to distribution under water from the water surface, then, then put temporarily in module via being located at fly line
Electric fly line 12 and hydraulic pressure fly line 18 electric, hydraulic pressure signal are transferred under water electrical distribution module and
In underwater hydraulic distribution module, electrical distribution module will electrically by being located at the coupling box under water of inside under water
Input port is connected with electric output port, and underwater hydraulic distribution module passes through metal hydraulic pipeline by hydraulic pressure
Input port is connected with hydraulic pressure output port, the distribution path that final composition is electrically, hydraulic pressure is complete, for
Underwater multiplex production facility runs.
Pedestal specifically includes that a base framework 17, the pedestal hanger being distributed on 17 4 angles of base framework
16, it is connected with a tape splicing hole steel plate 22 below base framework 17；
Umbilical cables terminal specifically includes that a umbilical cables terminal box body 5 being fixed on base framework 17, peace
The umbilical cables 1 being contained on umbilical cables terminal box body 5, the underwater hydraulic being arranged on umbilical cables terminal box body 5
Fly head to fix end 2, the underwater robot operating handle 3 being arranged on umbilical cables terminal box body 5 surface, install
The most electrically fly that head fixes end 4, mode with bolts is arranged on umbilical cables terminal box body 5 surface
Umbilical cables terminal box body 5 several pieces checker plates 23 above；Wherein, umbilical cables is from umbilical cables terminal box body 5
Side enter, be connected to the most electrically to fly the fixing end 4 of head and under water by internal electric, underground
Hydraulic joint fixes end 2.
Underwater hydraulic distribution module is: symmetrical frame structure, and framework surface connects has underwater hydraulic to fly head admittedly
Fixed end, box house is disposed with hydraulic line, and hydraulic pressure fly line 18 is by the hydraulic power transmission in umbilical cables 1
Underwater hydraulic in underwater hydraulic distribution module flies the fixing end of head, realizes liquid by internal hydraulic line
Pressure power distributes.
Fly line is put module temporarily and is specifically included that the fly line under water being fixed on base framework 17 puts module frame temporarily
7, it is arranged on fly line under water to put the underwater hydraulic on module frame 7 temporarily and fly head and fix end 20, the most electrically fly
Fixing end 21, underwater robot operating handle 6；
Underwater hydraulic distribution module is symmetrical frame structure, specifically includes that and is fixed on base framework 17
Underwater hydraulic distribution module frame 8, mode with bolts are arranged on underwater hydraulic distribution module frame 8
On several pieces checker plates 19, underwater robot operating handle 9, underwater hydraulic fly head and fix end 10, this water
Lower hydraulic pressure flies head to be fixed end 10 and flies head by hydraulic pressure fly line 18 with the underwater hydraulic in umbilical cables terminal and fix
End 2 is connected, and is entered by hydraulic pressure by being located at underwater hydraulic distribution module frame 8 interior metal hydraulic line
Row distribution；
Electrical distribution module is that symmetrical frame structure specifically includes that the water being fixed on base framework 17 under water
Lower electrical distribution module frame 15, mode with bolts are arranged on electrical distribution module frame 15 under water
On underwater robot operating handle 11, several pieces checker plates 13, the most electrically fly head and fix end 14, this water
The most electrically fly head fix end 14 by electric fly line 12 be located in umbilical cables terminal the most electrically fly head
Fixing end 4 is connected, and by be located under water coupling box under water within electrical distribution module frame 15 by electricity
Gas signal is allocated.
During as it is shown in figure 1, use, electric, the hydraulic power signal of the water surface are transferred to by umbilical cables 1
In umbilical cables terminal, and achieve hydraulic pressure, electric signal from the water surface to distribution under water in umbilical cables terminal
Transmission, then, then is transferred to water via electric fly line 12 and hydraulic pressure fly line 18 by electric, hydraulic pressure signal
In lower electrical distribution module and underwater hydraulic distribution module, electrical distribution module is by inside under water under water
Electrical input terminal mouth is connected by coupling box with electric output port, and underwater hydraulic distribution module passes through molten metal
Hydraulic input port is connected by pressure pipeline with hydraulic pressure output port, finally forms electric, complete the dividing of hydraulic pressure
Join path, run for underwater multiplex production facility.
Above-mentioned underwater hydraulic flies the fixing end (2,10,20) of head and including: a tubular structure, tubular structure
End face is prominent disc structure, is fixed in umbilical cables eventually with bolt by through hole uniform on disk
End, underwater hydraulic distribute module and put the most temporarily in module, and the bottom surface of tubular structure is evenly equipped with multichannel under water
Dedicated hydraulic joint.
Above-mentioned the most electrically fly the fixing end (4,14,21) of head and including: a most special electrical connector,
The surface of the most special electrical connector is with the card of uniformly distributed round, and is fixed in navel by bolt
Band cable terminal, under water electrical distribution module and put the most temporarily in module.
Above-mentioned underwater robot operating handle (3,6,9,11) is: according to relevant criterion under water by round steel
Complete certain shape, the steel plate that the welding of round steel two ends is with holes, be connected to umbilical cables eventually by bolt
End, under water electrical distribution module, underwater hydraulic distribution module and fly line put module temporarily, and underwater robot is grasped
Make handle and provide support for underwater robot operation.
Above-mentioned checker plate (13,19,23) is: connect the net intersected to form on the steel plate that centre is emptied
Shape metal steel wire, the uniform through hole of steel plate surrounding, utilize bolt to be fixed in umbilical cables terminal, under water electricity
Gas distribution module and underwater hydraulic distribution module, in order to alleviate the weight of works, reduce wherein electrically,
Fluid pressure line suffers the failure probability of marine growth, also allows for underwater robot simultaneously and enters inside configuration situation
Row is observed.
Above-mentioned hydraulic pressure fly line 18 is: multipath hydraulic pipeline, is combined into a big fluid pressure line by armouring,
Fluid pressure line two ends connect have by multichannel and underwater hydraulic fly head fix hold supporting dedicated hydraulic under water connect
Head, it is identical that the layout of joint flies the fixing end of head with underwater hydraulic.
Above-mentioned electric fly line 12 is: electric wiring two ends connect to be had and the most electrically fly head and fix end and join
The most special electrical connector of set.
The above, be only presently preferred embodiments of the present invention, not the present invention is made any in form
Restriction, any simple modification that above example is made by every technical spirit according to the present invention, etc.
With change and modification, all still fall within the range of technical solution of the present invention.
Claims (5)
1. the most electro-hydraulic distributor, it is characterised in that: including: a pedestal, be arranged on pedestal
Umbilical cables terminal, fly line put temporarily module, underwater hydraulic distribution module, under water electrical distribution module, one
Electric, the hydraulic power signal of the water surface are transferred in umbilical cables terminal by umbilical cables, and in umbilical cables terminal
Achieve and hydraulic pressure, electric signal are transmitted to distribution under water from the water surface, then, via being located at fly line then
Put the electric fly line in module temporarily and electric, hydraulic pressure signal are transferred to electrical distribution mould under water by hydraulic pressure fly line
In block and underwater hydraulic distribution module, electrical distribution module will by being located at the coupling box under water of inside under water
Electrical input terminal mouth is connected with electric output port, and underwater hydraulic distribution module passes through hydraulic line by hydraulic pressure
Input port is connected with hydraulic pressure output port, constitutes an electric air-liquid run for underwater multiplex production facility
Press complete distribution path；Described umbilical cables terminal specifically includes that a umbilical cord being fixed on base framework
Cable terminal box body, the umbilical cables being arranged on umbilical cables terminal box body, it is arranged on umbilical cables terminal box body
The first underwater hydraulic fly head and fix end, be arranged on first underwater robot on umbilical cables terminal box body surface
Operating handle, it is arranged on the first of umbilical cables terminal box body surface and the most electrically flies the fixing end of head, be arranged on
Several pieces first checker plates above umbilical cables terminal box body；Described fly line is put module temporarily and is specifically included that fixing
Fly line under water on base framework is put module frame temporarily, is arranged on fly line under water and puts temporarily on module frame
Second underwater hydraulic flies the fixing end of head, second the most electrically flies the fixing end of head, the second underwater robot operation
Handle；Described underwater hydraulic distribution module specifically includes that the underwater hydraulic distribution being fixed on base framework
Module frame, several pieces second checker plates being arranged on underwater hydraulic distribution module frame, the 3rd machine under water
Device people's operating handle, the 3rd underwater hydraulic fly the fixing end of head, and the 3rd underwater hydraulic flies head to be fixed end and pass through
Hydraulic pressure fly line flies the fixing end of head and is connected with the first underwater hydraulic in umbilical cables terminal, and by being located under water
Hydraulic pressure is allocated by hydraulic pressure distribution module frame interior metal hydraulic line；Described electrical distribution mould under water
Block specifically include that the module frame of electrical distribution under water being fixed on base framework, be arranged on the most electric
The 4th underwater robot operating handle on distribution module frame, several pieces the 3rd checker plates, the 3rd the most electric
Gas flies the fixing end of head, the 3rd the most electrically fly the fixing end of head by electric fly line be located at umbilical cables terminal
On first the most electrically fly the fixing end of head and be connected, and by being located under water inside electrical distribution module frame
Electric signal is allocated by coupling box under water.
The most electro-hydraulic distributor the most according to claim 1, it is characterised in that: described pedestal bag
Include: a base framework, the pedestal hanger being distributed on four angles of base framework, be connected with below base framework
One tape splicing hole steel plate.
The most electro-hydraulic distributor the most according to claim 1, it is characterised in that: described first water
Lower hydraulic pressure flies the fixing end of head, the second underwater hydraulic flies the fixing end of head, the 3rd underwater hydraulic flies head fixing end bag
Include: a tubular structure, the end face of tubular structure are prominent disc structure, with bolt by equal on disk
The through hole of cloth is fixed in umbilical cables terminal, underwater hydraulic distribution module and puts the most temporarily in module, cylinder
The bottom surface of shape structure is evenly equipped with multichannel dedicated hydraulic joint under water.
The most electro-hydraulic distributor the most according to claim 1, it is characterised in that: described first water
The most electrically fly the fixing end of head, second the most electrically fly the fixing end of head, the 3rd the most electrically fly head fixing end bag
Include: a most special electrical connector, the surface of the most special electrical connector is with the dish of uniformly distributed round
Face, and be fixed in umbilical cables terminal, under water electrical distribution module by bolt and put module the most temporarily
On.
The most electro-hydraulic distributor the most according to claim 1, it is characterised in that: described first net
Card, the second checker plate, the 3rd checker plate be: connects intersect to form netted on the steel plate that centre is emptied
Metal steel wire, steel plate is uniformly distributed on peripheries with hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410105268.1A CN103883589B (en) | 2014-03-20 | 2014-03-20 | The most electro-hydraulic distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410105268.1A CN103883589B (en) | 2014-03-20 | 2014-03-20 | The most electro-hydraulic distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883589A CN103883589A (en) | 2014-06-25 |
| CN103883589B true CN103883589B (en) | 2016-08-17 |
Family
ID=50952658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410105268.1A Active CN103883589B (en) | 2014-03-20 | 2014-03-20 | The most electro-hydraulic distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883589B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695903A (en) * | 2015-01-15 | 2015-06-10 | 中国海洋石油总公司 | Independently recyclable underwater electrical and hydraulic distribution module |
| CN114421418B (en) * | 2021-12-13 | 2024-03-22 | 海洋石油工程股份有限公司 | Umbilical cable terminal convenient for underwater connection |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9104764A (en) * | 1991-11-01 | 1993-05-04 | Petroleo Brasileiro Sa | MULTIPLEXED ELECTROHYDRAULIC TYPE CONTROL SYSTEM USED AND A SUBMARINE PRODUCTION SYSTEM |
| GB2450149A (en) * | 2007-06-15 | 2008-12-17 | Vetco Gray Controls Ltd | A backup umbilical connection for a well installation |
| US9181942B2 (en) * | 2010-04-08 | 2015-11-10 | Framo Engineering As | System and method for subsea production system control |
| US8746346B2 (en) * | 2010-12-29 | 2014-06-10 | Vetco Gray Inc. | Subsea tree workover control system |
| CN102425587A (en) * | 2011-12-08 | 2012-04-25 | 中国海洋石油总公司 | Physical simulation test system for subsea production facility hydraulic control system |
| CN103616533B (en) * | 2013-10-18 | 2016-01-13 | 中国海洋石油总公司 | Connecing of recoverable underwater cable joint is moored and proving installation |
-
2014
- 2014-03-20 CN CN201410105268.1A patent/CN103883589B/en active Active
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| Publication number | Publication date |
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| CN103883589A (en) | 2014-06-25 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240715 Address after: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Country or region after: China Patentee after: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee after: CNOOC Shenzhen Ocean Engineering Technology Service Co.,Ltd. Address before: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Country or region before: China Patentee before: OFFSHORE OIL ENGINEERING Co.,Ltd. |