CN206513864U - Multiple-way valve and crude oil measurement system - Google Patents
Multiple-way valve and crude oil measurement system Download PDFInfo
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- CN206513864U CN206513864U CN201720214961.1U CN201720214961U CN206513864U CN 206513864 U CN206513864 U CN 206513864U CN 201720214961 U CN201720214961 U CN 201720214961U CN 206513864 U CN206513864 U CN 206513864U
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Abstract
The utility model is related to crude oil measuring station apparatus field, discloses a kind of multiple-way valve and crude oil measurement system, and the multiple-way valve includes：Valve body (1)；Core assembly, is arranged on the inside of valve body, including：Valve element (2), its be movably disposed in valve body and be provided with can by the movement of valve element (2) optionally with the cartridge inlet (21) of the connection in the multiple entrances and all the time cartridge outlet (22) with first outlet pipeline communication；Built-in valve (3), it is movably disposed at the inside of valve element, and with the passage (4) of built-in valve inlet, built-in valve outlet and the built-in valve inlet of connection and built-in valve outlet, built-in valve can be in the first position and so that moved between the second place of built-in valve blocking cartridge inlet, built-in valve outlet is connected with cartridge outlet all the time for make it that built-in valve inlet is connected with cartridge inlet；Drive mechanism.The multiple-way valve provided using the utility model, can prevent valve element from wearing and tearing, and increase the usage cycles of valve element.
Description
Technical field
The utility model is related to crude oil measuring station apparatus field, in particular it relates to a kind of multiple-way valve and crude oil measurement
System.
Background technology
Crude oil measuring station typically all corresponds to many mouthfuls of production wells, and when being measured, measuring station is selected by multiple-way valve
Wherein a bite oil well is measured, and remaining Wellhead crue oil, which is then aggregated into production pipeline, delivers to downstream process units.Multiple-way valve can
Remote monitoring, can realize unattended automatic well-selecting function, with floor space is small, easy to operate, the low spy of equipment cost
Point.
But multiple-way valve selects well valve element to be chronically to carry out the state that liquid washes away, select well valve element easily to wear and tear in generation and leak,
And replacing selects well valve element process comparatively laborious, causes the waste of manpower and materials.Accordingly, it would be desirable to change to existing multiple-way valve
Enter.
Utility model content
The purpose of this utility model is to provide a kind of multiple-way valve, and the multiple-way valve can prevent valve element from occurring abrasion and interior
Leakage, from changing valve element without often expending a large amount of manpower and materials.
To achieve these goals, the utility model provides a kind of multiple-way valve, and the multiple-way valve includes：Valve body, the valve body
On be provided with first outlet pipeline, second outlet pipeline and multiple entrances；Core assembly, the core assembly is arranged on described
The inside of valve body, the core assembly includes：Valve element, the valve element is movably disposed in the valve body and is provided with can
The cartridge inlet that is optionally connected by the movement of the valve element with an entrance in multiple entrances and
All the time with the cartridge outlet of the first outlet pipeline communication；Built-in valve, the built-in valve is movably disposed at the valve element
Inside, the built-in valve has built-in valve inlet, built-in valve outlet and connects the built-in valve inlet to go out with the built-in valve
The passage of mouth, the built-in valve can be in the first position and make for make it that the built-in valve inlet is connected with the cartridge inlet
Obtain between the built-in valve blocks the second place of the cartridge inlet and move, the built-in valve outlet goes out with the valve element all the time
Mouth connection；Drive mechanism, the drive mechanism is including for driving the first actuator of the valve element and for driving in described
Put the second actuator of valve.
Preferably, multiple entrances are circumferentially disposed around the sustained height of the valve body, and the valve element passes through rotation
Mode causes the cartridge inlet optionally to be connected with an entrance in multiple entrances, and the built-in valve passes through
The mode of rotation is moved between the first position and the second place.
Preferably, the valve element has the cylindrical lumens for being used for accommodating the built-in valve, and the built-in valve is ball valve.
Preferably, valve seat is provided with the cylindrical lumens, the valve seat goes out in the cartridge inlet and the valve element
The position of mouth is provided with through hole, and the built-in valve is arranged in the valve seat, and the top of the valve element, which has, connects the cylinder
The opening for being used to take out the valve seat of shape inner chamber.
Preferably, the first outlet pipeline is perpendicular to the entrance, and the passage is L-type.
Preferably, first actuator drives the valve core rotation by valve core valve stem, and second actuator passes through
The built-in valve rod driving built-in valve is rotated.
Preferably, the valve core valve stem is the tubulose of two ends insertion, and the built-in valve rod is connected through the valve core valve stem
The built-in valve, the operation of the valve core valve stem and the built-in valve rod is not interfered with one another.
Preferably, the built-in valve rod and the valve core valve stem are coaxially arranged and keep gap each other.
On the basis of more than, the utility model also provides a kind of crude oil measurement system, and the crude oil measurement system is included as above
Described multiple-way valve, the oil supply device for being passed through to the valve body crude oil and filled for the metering for storing and measuring crude oil
Put, the oil supply device include with the one-to-one oil-feed port of at least a portion entrance in multiple entrances,
Metering device described in the first outlet pipeline communication.
Preferably, the quantity of the entrance be more than the oil-feed port quantity so that the multiple-way valve have not with it is described
At least one described entrance of oil-feed port connection.
By above-mentioned technical proposal, the multiple-way valve provided using the application, when selecting well, by cartridge inlet aligned inlet,
The built-in valve inlet of built-in valve is directed at cartridge inlet simultaneously, the crude oil of oil well to be batched enters built-in valve by entrance, and leads to
Cross built-in valve and flow into second outlet pipeline.Washed away because built-in valve instead of valve element by crude oil, only need to be by valve element when changing
Interior built-in valve takes out the built-in valve more renewed.
Other features and advantages of the utility model will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and constitutes a part for specification, and following
Embodiment be used to explain the utility model together, but do not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the schematic diagram of the multiple-way valve according to the utility model preferred embodiment；
Fig. 2 is the top view of Fig. 1 multiple-way valve.
Description of reference numerals
The valve element of 1 valve body 2
The passage of valve 4 built in 3
Valve rod built in 5 valve core valve stems 6
The actuator of 7 first actuator 8 second
9 valve seats
The first outlet pipeline of 11 entrance 12
13 second outlet pipelines
The cartridge outlet of 21 cartridge inlet 22
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
The application provides a kind of multiple-way valve, wherein, the multiple-way valve includes：First is provided with valve body 1, the valve body 1 to go out
Mouth pipeline 12, second outlet pipeline 13 and multiple entrances 11；Core assembly, the core assembly is arranged on the valve body 1
Inside, the core assembly includes：Valve element 2, the valve element 2 is movably disposed in the valve body 1 and is provided with and can lead to
The cartridge inlet 21 crossed the movement of the valve element 2 and optionally connected with an entrance 11 in multiple entrances 11
And the cartridge outlet 22 connected all the time with the first outlet pipeline 12；Built-in valve 3, the built-in valve 3 is movably disposed
In the inside of the valve element 2, the built-in valve 3 there is built-in valve inlet, built-in valve outlet and connect the built-in valve inlet with
The passage 4 of the built-in valve outlet, the built-in valve 3 can cause the built-in valve inlet to be connected with the cartridge inlet 21
First position and the built-in valve 3 is moved between blocking the second place of the cartridge inlet 21, the built-in valve
Outlet is connected with the cartridge outlet 22 all the time；Drive mechanism, the drive mechanism includes being used to drive the first of the valve element 2
Actuator 7 and the second actuator 8 for driving the built-in valve 3.
As shown in figure 1, different entrances 11 can be used for connecting different oil wells, valve element 2 can be realized by mobile
By cartridge inlet 21 and entrance 11 wherein any one be connected, i.e., valve element 2 may be selected under the driving of the first actuator 7 with not
Same oil well connection, and the first position that built-in valve 3 can be connected under the driving of the second actuator 8 with the cartridge inlet 21
And the built-in valve 3 is moved between blocking the second place of the cartridge inlet 21.It should be noted that the He of valve element 2
Built-in valve 3 is powered respectively, and valve element 2 and built-in valve 3 have no effect on mutual movement.
When valve element 2, which is moved into place, is moved to first position in the state and built-in valve 3 connected with one of entrance 11,
The passage 4 that crude oil in the oil well connected with the entrance 11 can be entered in built-in valve 3 by cartridge inlet 21, and gone out by valve element
Mouth 22 is discharged into first outlet pipeline 12, and second outlet passage can be connected with extraneous metering device, thus pass through the application
Multiple-way valve realize well function selected to a certain oil well.When built-in valve 3 is in first position, the passage 4 of built-in valve 3 instead of valve
Core 2 is washed away by crude oil；And when built-in valve 3 is in the second place, built-in valve 3 blocks the cartridge inlet 21 of valve element 2, crude oil is not
The inside of valve element 2 can be entered, it is therefore prevented that the abrasion inside valve element 2, and built-in valve 3 can bear rushing for crude oil instead of valve element 2
Hit, protection is provided to the outer surface of valve element 2.Therefore, the multiple-way valve of the application significantly increases the usage cycles of valve element 2.
In order to improve precision, the multiple-way valve of the application can be operated according to following preferred process, specifically, when need to some life
When oil-producing well is measured, if now multiple-way valve does not start to work also, i.e., all entrances 11 not to the fuel feeding of valve body 1,
As long as the entrance 11 at this moment connected by built-in valve inlet, cartridge inlet 21 and with the production well to be measured all connections,
Restart these oil wells to the fuel feeding of valve body 1.
And if now multiple-way valve is in the state of work, that is, has the fuel feeding into valve body 1 of entrance 11, now there is two kinds of shapes
State, i.e. cartridge inlet 21 are located at the state not connected with any entrance 11 and built-in valve 3 is in the second place, or cartridge inlet
21 are in first position positioned at the state and built-in valve 3 connected with some entrance 11, no matter which state can pass through first
Second actuator 8 drives built-in valve 3 to move, and makes the entrance of the built-in valve inlet alignment connection oil well to be measured of built-in valve 3
11, now：If cartridge inlet 21 is connected with connecting the entrance 11 of the oil well, built-in valve inlet, cartridge inlet 21, connection are somebody's turn to do
The entrance 11 of oil well all connections, the crude oil of the oil well enters passage 4 and discharged by first outlet pipeline 12；And if valve element
Entrance 21 is not connected with connecting the entrance 11 of the oil well, then the cartridge inlet 21 of valve element 2 is built valve 3 and blocked, and crude oil can not lead to
Enter valve element 2, then by the first actuator 7 valve element 2 can be driven to move so that the alignment of cartridge inlet 21 connects entering for the oil well
Mouthfuls 11, now built-in valve 3 is located at first position, and built-in valve inlet, cartridge inlet 21, the entrance 11 that connects the oil well all connect
Logical, the crude oil of the oil well enters passage 4 and discharged by first outlet pipeline 12.
The multiple-way valve of the application can realize that valve element 2 is optionally connected with entrance 11 by the way of appropriate, it is preferable that
Multiple entrances 11 are circumferentially disposed around the sustained height of the valve body 1, and the valve element 2 is caused described by way of rotation
Cartridge inlet 21 is optionally connected with an entrance 11 in multiple entrances 11, and the built-in valve 3 passes through rotation
Mode moved between the first position and the second place.As shown in Fig. 2 valve element 2 is arranged on the centre bit of valve body 1
Put, cartridge inlet 21 is arranged on the side of valve element 2, valve element 2 can be connected from different entrances 11 by way of rotation, when interior
When putting valve 3 and being located in the second place, the whole crude oil for being passed through valve body 1 from entrance 11 are discharged by second outlet pipeline 13, and
Blocked because valve element 2 is built valve 3, crude oil, which can not enter valve element 2, to be discharged by first outlet pipeline 12.
In addition, in order to which built-in valve is arranged in valve element, it is preferable that the valve element 2, which has, to be used to accommodate the built-in valve 3
Cylindrical lumens, the built-in valve 3 is ball valve.The features such as ball valve has good airproof performance and be wear-resisting, can preferably realize close
Block the function of plug valve core 2, additionally it is possible to bear washing away for crude oil for a long time.Wherein, ball valve should be close and be snugly arranged on the circle
In cylindrical interior volume, it is ensured that in ball valve in first position, the second place and in the pilot process that ball valve rotates, crude oil can not
Into in the cylindrical lumens of valve element 2.
Because built-in valve 3 replaces valve element 2 to bear washing away for crude oil, for the ease of changing built-in valve 3, it is preferable that the circle
Valve seat 9 is provided with cylindrical interior volume, the valve seat 9 is provided with logical in the position of the cartridge inlet 21 and the cartridge outlet 22
Hole, the built-in valve 3 is arranged in the valve seat 9, and top being used for the connection cylindrical lumens of the valve element 2 takes
Go out the opening of the valve seat 9.Wherein, valve seat 9, which can be bolted, is fixed in valve element 2, is needing to change built-in valve 3
When, valve seat 9 and built-in valve 3 can jointly be taken out by the opening.
Because the passage 4 of built-in valve 3 can bear washing away for crude oil instead of valve element 2, and when built-in valve 3 rotates, valve seat 9
The abrasion with built-in valve 3 can be born, the abrasion of valve element 2 is efficiently avoid, the usage cycles of valve element 2 are significantly increased.
In order to realize that cartridge outlet 22 and built-in valve outlet are connected with first outlet pipeline 22 all the time, it is preferable that described
First outlet pipeline 12 is perpendicular to the entrance 11, and the passage 4 is L-type.Due to first outlet pipeline 12 perpendicular to it is described enter
Mouth 11, valve element 2 and built-in valve 3 can rotate by axle of the center line of first outlet pipeline 12.
The drive mechanism of the application can use appropriate form, it is preferable that first actuator 7 passes through valve core valve stem
The 5 driving valve elements 2 are rotated, and second actuator 8 drives the built-in valve 3 to rotate by built-in valve rod 6.Wherein, first
The actuator 8 of actuator 7 and second can select electro-motor, and the connection valve element 2 of valve core valve stem 5, built-in valve rod 6 connects built-in valve 3.
Also it may be preferred that the valve core valve stem 5 is the tubulose of two ends insertion, the built-in valve rod 6 connects institute through the valve core valve stem 5
Built-in valve 3 is stated, the operation of the valve core valve stem 5 and the built-in valve rod 6 is not interfered with one another.Wherein the latus rectum of valve core valve stem 5 should
When the latus rectum more than built-in valve rod 6.As shown in figure 1, built-in valve rod 6 is nested in valve core valve stem 5, the first actuator 7 and second
Actuator 8 is transmitted torque on valve element 2 and built-in valve 3 by valve core valve stem 5 and built-in valve rod 6 respectively.
In order that the rotation of valve core valve stem 5 and built-in valve rod 6 is not interfered with each other, it is preferable that the built-in valve rod 6 and described
Valve core valve stem 5 is coaxially arranged and keeps gap each other.The built-in valve rod 6 and the valve core valve stem 5 being arranged so as to are when rotated
It will not collide.
According to other side of the present utility model, the utility model also provides a kind of crude oil measurement system, the crude oil meter
Amount system includes multiple-way valve as described above, be passed through to the valve body 1 the oil supply device of crude oil and by store and based on
The metering device of crude oil is measured, the oil supply device includes and at least a portion entrance 11 in multiple entrances 11
One-to-one oil-feed port, the first outlet pipeline 12 connects the metering device.Wherein, the oil supply device is production
Oil well, second outlet pipeline 13 can be communicated to oil plant pipeline or other.The multiple-way valve that the application is provided can make built-in
Valve 3 is washed away instead of valve element 2 by crude oil, significantly increases the usage cycles of valve element 2, after prolonged work, only needs to change
Built-in valve 3.
In addition, when selecting the well to switch, because built-in valve 3 can be quickly moved to block the second place of cartridge inlet 21, so
Well is selected by the mobile progress of valve element 2 afterwards, therefore, during well is selected, under metering device will detect that flow occurs substantially
Drop even zero, until selecting well to terminate, oil supply device leads to the pipeline connection of metering device, and metering device can be detected again
One flow signal for being lifted rapidly.The trend that significant change occurs for this section of metered flow can be used for judgement and select well to start to choosing
The successful state of well.Metering device can be continued into by solving conventional multiple-way valve crude oil when selecting well to switch, it is impossible to accurately be sentenced
It is disconnected to select well whether whether the oil product in place and in metering pipeline is entirely from the production well measured, well can only selected to start
Postpone a longer cycle afterwards to measure again again, all be from selecting the production well to be measured with the crude oil for ensureing measured
Situation.
Preferably, the quantity of the entrance 11 be more than the oil-feed port quantity so that the multiple-way valve have not with institute
State at least one described entrance 11 of oil-feed port connection.When needing to change, pioneer's movable valve plug 2 causes cartridge inlet 21 to be aligned not
The entrance 11 connected with oil-feed port, now the crude oil in valve body 1 cannot be introduced into valve element 2, and the entrance connected with cartridge inlet 21
11 also to the fuel feeding of valve element 2, therefore can directly change the built-in valve 3 being arranged in valve element 2 without making all production wells
Stop production, crude oil still normally can lead to the external world by second outlet pipeline 13.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, still, the utility model is not limited
Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model
Art scheme carries out a variety of simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each
Possible combination is planted no longer separately to illustrate.
In addition, can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (10)
1. a kind of multiple-way valve, it is characterised in that the multiple-way valve includes：
First outlet pipeline (12), second outlet pipeline (13) and multiple entrances are provided with valve body (1), the valve body (1)
(11)；
Core assembly, the core assembly is arranged on the inside of the valve body (1), and the core assembly includes：
Valve element (2), the valve element (2) is movably disposed in the valve body (1) and is provided with can be by the valve element (2)
Movement and the cartridge inlet (21) that is optionally connected with an entrance (11) in multiple entrances (11) and
All the time the cartridge outlet (22) connected with the first outlet pipeline (12)；
Built-in valve (3), the built-in valve (3) is movably disposed at the inside of the valve element (2), and the built-in valve (3) has
The passage (4) of built-in valve inlet, built-in valve outlet and the connection built-in valve inlet and the built-in valve outlet, the built-in valve
(3) can be in the first position and cause the built-in valve for make it that the built-in valve inlet is connected with the cartridge inlet (21)
(3) moved between the second place for blocking the cartridge inlet (21), the built-in valve outlet all the time with the cartridge outlet
(22) connect；
Drive mechanism, the drive mechanism includes being used for the first actuator (7) for driving the valve element (2) and described for driving
The second actuator (8) of built-in valve (3).
2. multiple-way valve according to claim 1, it is characterised in that multiple entrances (11) are around the valve body (1)
Sustained height is circumferentially disposed, the valve element (2) caused by way of rotation the cartridge inlet (21) optionally with it is multiple
Entrance (11) connection in the entrance (11), the built-in valve (3) is by way of rotation at described first
Put and moved between the second place.
3. multiple-way valve according to claim 2, it is characterised in that the valve element (2), which has, to be used to accommodate the built-in valve
(3) cylindrical lumens, the built-in valve (3) is ball valve.
4. multiple-way valve according to claim 3, it is characterised in that valve seat (9) is provided with the cylindrical lumens, described
Valve seat (9) is provided with through hole in the position of the cartridge inlet (21) and the cartridge outlet (22), and the built-in valve (3) is set
In the valve seat (9), top being used for the connection cylindrical lumens of the valve element (2) takes out the valve seat (9)
Opening.
5. multiple-way valve according to claim 3, it is characterised in that the first outlet pipeline (12) is perpendicular to the entrance
(11), the passage (4) is L-type.
6. multiple-way valve according to claim 1, it is characterised in that first actuator (7) is driven by valve core valve stem (5)
The dynamic valve element (2) rotates, and second actuator (8) drives the built-in valve (3) to rotate by built-in valve rod (6).
7. multiple-way valve according to claim 6, it is characterised in that the valve core valve stem (5) is the tubulose of two ends insertion, institute
Built-in valve rod (6) is stated through the valve core valve stem (5) the connection built-in valve (3), the valve core valve stem (5) and the built-in valve
The operation of bar (6) is not interfered with one another.
8. multiple-way valve according to claim 7, it is characterised in that the built-in valve rod (6) and the valve core valve stem (5) are same
It is arranged axle and keeps gap each other.
9. crude oil measurement system, it is characterised in that the crude oil measurement system includes many described in any one in claim 1-8
Port valve, the oil supply device of crude oil and the metering device for storing and measuring crude oil are passed through to the valve body (1), it is described
Oil supply device include with the one-to-one oil-feed port of at least a portion entrance (11) in multiple entrances (11),
The first outlet pipeline (12) connects the metering device.
10. crude oil measurement system according to claim 9, it is characterised in that the quantity of the entrance (11) is more than described
The quantity of oil-feed port, so that the multiple-way valve has at least one the described entrance (11) not connected with the oil-feed port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214961.1U CN206513864U (en) | 2017-03-07 | 2017-03-07 | Multiple-way valve and crude oil measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214961.1U CN206513864U (en) | 2017-03-07 | 2017-03-07 | Multiple-way valve and crude oil measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513864U true CN206513864U (en) | 2017-09-22 |
Family
ID=59869996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720214961.1U Active CN206513864U (en) | 2017-03-07 | 2017-03-07 | Multiple-way valve and crude oil measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032557A (en) * | 2020-09-16 | 2020-12-04 | 苏州大学 | Gas cylinder quick release device and release method |
-
2017
- 2017-03-07 CN CN201720214961.1U patent/CN206513864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032557A (en) * | 2020-09-16 | 2020-12-04 | 苏州大学 | Gas cylinder quick release device and release method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: COOEC-ENPAL ENGINEERING Co.,Ltd. Address before: 100010 Hai Yuan building, 25 Chaoyangmen North Street, Chaoyang District, Beijing. Co-patentee before: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: COOEC-ENPAL ENGINEERING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180516 Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: CNOOC PETROCHEMICAL ENGINEERING Co.,Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC OIL & PETROCHEMICALS Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: COOEC-ENPAL ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right |