CN205330599U - A hang gold utensil for diving oily charge pump combined material manages oil recovery system in succession - Google Patents
A hang gold utensil for diving oily charge pump combined material manages oil recovery system in succession Download PDFInfo
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- CN205330599U CN205330599U CN201521128900.0U CN201521128900U CN205330599U CN 205330599 U CN205330599 U CN 205330599U CN 201521128900 U CN201521128900 U CN 201521128900U CN 205330599 U CN205330599 U CN 205330599U
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- China
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- gold utensil
- composite continuous
- continuous tube
- tube
- hanger
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000010931 gold Substances 0.000 title claims abstract description 81
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 81
- 239000000463 material Substances 0.000 title abstract description 10
- 238000011084 recovery Methods 0.000 title abstract description 3
- 230000009189 diving Effects 0.000 title abstract 2
- 239000002131 composite material Substances 0.000 claims description 79
- 239000003921 oil Substances 0.000 claims description 38
- 238000004891 communication Methods 0.000 claims description 19
- 238000000605 extraction Methods 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 16
- 239000010779 crude oil Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 2
- 229920005992 thermoplastic resin Polymers 0.000 description 10
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 5
- 239000007769 metal material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229950000845 politef Drugs 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a hang gold utensil for diving oily charge pump combined material manages oil recovery system in succession, including the hanger, the hanger internal fixation is provided with interior expand tube, and interior expand tube makes and hangs the passageway that link up about the gold utensil formation, the external fixation of interior expand tube is provided with the outer draw, and is formed with annular continuous pipe installation clearance between the interior expand tube and the outer draw, and the wall thickness that continuous pipe installation clearance and combined material managed in succession is identical, set up the wire clearing hole on the hanger, be provided with the plug screw in the wire clearing hole. The utility model discloses a what form between the interior expand tube and the outer draw withholds the snap -in force, make combined material in succession the pipe with hang the gold utensil and combine to become an organic whole to manage combined material to hang in succession and be fixed in the well head, draw forth intraductal power supply and data signal to ground simultaneously.
Description
Technical field
This utility model relates to a kind of well head bindiny mechanism lifting oil extraction system without bar, is specifically related to a kind of suspension gold utensil for submersible electric pump composite continuous tube oil extraction system。
Background technology
At present, China's land oil well substantially has hundreds thousand of mouth, and oil recovery technique is based on sucker rod pumping。Along with increasing of inclined shaft, horizontal well, deep-well, heavy oil wells etc., sucker rod pumping is more difficult, it is common to the problem such as there is eccentric wear, disconnected bar, sky are taken out, wax deposition, fouling and strata pressure do not mate with Discharge rate, and some oil wells has bar oil production method not competent。
Utility model content
Technical problem to be solved in the utility model is to provide a kind of suspension gold utensil for submersible electric pump composite continuous tube oil extraction system, and it can realize the suspension of composite continuous tube and fix。
For solving above-mentioned technical problem, this utility model for the technical solution hanging gold utensil of submersible electric pump composite continuous tube oil extraction system is:
Including hanger 6-1, being fixedly installed interior tube expansion 6-2 in hanger 6-1, interior tube expansion 6-2 makes the passage that suspension gold utensil 6 forms up/down perforation；The external stability of interior tube expansion 6-2 is provided with outer draw 6-3, and is formed with annular continuous pipe assemblage gap between interior tube expansion 6-2 and outer draw 6-3, and continuous pipe assemblage gap matches with the wall thickness of composite continuous tube 7；Offering wire on hanger 6-1 by hole, wire is provided with plug screw 6-5 by hole。
The connecting portion of described interior tube expansion 6-2 and composite continuous tube 7 is formed with thread tooth structure。
The connecting portion of described outer draw 6-3 and composite continuous tube 7 is formed with thread tooth structure。
The main body of described hanger 6-1 is the taper under upper size。
The bottom of described outer draw 6-3 and hanger 6-1 is fixing to be connected。
The top of described composite continuous tube 7 is fixing to be arranged in continuous pipe assemblage gap, hang gold utensil 6 to realize being connected with the fixing of composite continuous tube 7 by continuous pipe assemblage gap, thus realizing fixing composite continuous tube 7 top, and make the passage of composite continuous tube 7 be connected with the passage hanging gold utensil 6, flow up so that the crude oil in composite continuous tube 7 can pass through to hang gold utensil 6, thus realizing logical functional oil。
Described screw pylon 6-4 by the continuous pipe assemblage gap of hanger 6-1 with hang gold utensil 6 be connected externally to lead to, so that the power cable 7-5 of composite continuous tube 7 and data communication optical fiber 7-4 can draw from the screw pylon 6-4 hanging gold utensil 6, it is connected with the transformator 1 on ground and controller 2, thus realizing energising and signal communication function。
Described plug screw 6-5 adopts composite。
What this utility model can reach has the technical effect that
This utility model withholds gmatjpdumamics by what formed between interior tube expansion and the outer draw, what be capable of between metal material with nonmetallic materials fixing is connected, being fixed on well head thus being hung by composite continuous tube, pipe internally-powered power supply and data signal being led to ground simultaneously。
This utility model passes through hole by arranging wire, it is possible to realize the extraction of composite continuous tube internally-powered cable and data communication optical fiber, thus realizing energising and signal communication function。
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail:
Fig. 1 adopts this utility model to hang the composite continuous tube of gold utensil to lift the schematic diagram of oil extraction system without bar；
Fig. 2 is the schematic cross-section of composite continuous tube；
Fig. 3 is this utility model generalized section hanging gold utensil for submersible electric pump composite continuous tube oil extraction system；
Fig. 4 is the generalized section of down-hole gold utensil。
Description of reference numerals in figure:
1 is transformator, and 2 is controller,
3 is rosette, and 4 is well head,
6 for hanging gold utensil,
7 is composite continuous tube, and 8 is down-hole gold utensil,
9 is transit joint, and 10 is down-hole latent oil membrane pump,
11 is decelerator, and 12 is shaft coupling,
13 is down-hole submersible electric machine with oil, and 14 is downhole sensor,
6-1 is hanger, and 6-2 is interior tube expansion,
6-3 is the outer draw, and 6-4 is screw pylon,
6-5 is plug screw,
7-1 is thermoplastic resin internal layer, and 7-2 is thermoplastic resin fibre's structure sheaf,
7-3 is thermoplastic resin outer layer, and 7-4 is data communication optical fiber,
7-5 is power cable,
8-1 is screw, and 8-2 is gold utensil main body,
8-3 is tube expansion in gold utensil, and 8-4 is the outer draw of gold utensil,
8-5 is screw pylon, and 8-6 is plug screw。
Detailed description of the invention
As shown in Figure 1, the composite continuous tube that this utility model hangs gold utensil is adopted to lift oil extraction system without bar, including the composite continuous tube 7 of whole, the top of composite continuous tube 7 is fixedly installed on well head 4 place by hanging gold utensil 6, the bottom of composite continuous tube 7 connects the upper end of transit joint 9 by down-hole gold utensil 8, the connection down-hole, lower end of transit joint 9 latent oil membrane pump 10, down-hole latent oil membrane pump 10 connects down-hole submersible electric machine with oil 13 by decelerator 11 and shaft coupling 12；Down-hole is provided with downhole sensor 14；Downhole sensor 14 is for measuring the temperature and pressure of down-hole；
Transit joint 9 can be the Hydraulic anchor having pressure anchor, lifting up the functions such as unblock, automatic oil drain valve；
Composite continuous tube 7 is embedded with many power cable 7-5 and many single data communication optical fiber 7-4；
Down-hole submersible electric machine with oil 13 is connected in the transformator 1 on ground by power cable 7-5, and transformator 1 is for being powered down-hole submersible electric machine with oil 13；
Downhole sensor 14 is connected in the controller 2 on ground by data communication optical fiber 7-4 through rosette 3, thus the data communication realized between downhole sensor 14 and controller 2；Controller 2 connects down-hole submersible electric machine with oil 13 by data communication optical fiber 7-4, and controller 2 is for realizing the control to down-hole submersible electric machine with oil 13。
As in figure 2 it is shown, composite continuous tube 7 includes three-layer type body, body is formed with the passage of hollow, passing through for crude oil；The internal layer of body is thermoplastic resin internal layer 7-1, and intermediate layer is thermoplastic resin fibre structure sheaf 7-2, and outer layer is thermoplastic resin outer layer 7-3；Thermoplastic resin internal layer 7-1 is equipped with power cable 7-5 and the data communication optical fiber 7-4 that the many length directions along body extend。
The internal layer of composite continuous tube 7 is thermoplastic resin internal layer 7-1, temperature grade according to working environment, its material can select ultra-high molecular weight polyethylene, polyolefin or politef, utilize its self lubricity and non-adhesiveness, make the inwall non-scaling of composite continuous tube 7, non-wax deposition, flow resistance little, flow velocity and flow can be kept for a long time not to subtract。
Wherein, ultra-high molecular weight polyethylene (ultra-highmolecularweightpolyethylene, it is called for short UHMWPE) it is a kind of saturated micel structure, its chemical stability is high, resistant to the erosion of various high-corrosion mediums (acid, alkali, salt) and organic solvent in uniform temperature and concentration range；The wearability of ultrahigh molecular weight polyethylene tubing is higher 4～7 times than steel pipe, stainless steel tube when carrying various slurry, higher than polyvinyl chloride pipe and polyethylene tube about 10 times, it is possible to increase substantially the service life of pipeline。
The outer layer of composite continuous tube 7 be thermoplastic resin outer layer 7-3 as external protection, the material of thermoplastic resin outer layer 7-3 can adopt high temperature resistant high density polyethylene (HDPE), and it has decay resistance equally。
Data communication optical fiber 7-4 can be single mode or multimode data optical fiber；
Single mode data optical fiber is for measuring the temperature and pressure of latent oily membrane pump 10 position of down-hole submersible electric machine with oil 13 and down-hole, and measurement data is sent to the controller 2 on ground, controller 2 is automatically adjusted the operating frequency of down-hole submersible electric machine with oil 13, make the Discharge rate maintenance balance of formation fluid production and down-hole latent oil membrane pump 10, thus reaching the intelligent target recovered the oil；
Multimode data optical fiber is used for measuring the parameters such as the stress of axially the internal and external equilibrium temperature of (i.e. depth direction) diverse location, composite continuous tube 7 in whole composite continuous tube 7, thus the safe condition of composite continuous tube 7 is monitored in real time。
As it is shown on figure 3, the suspension gold utensil 6 for submersible electric pump composite continuous tube oil extraction system includes hanger 6-1, being fixedly installed interior tube expansion 6-2 in hanger 6-1, interior tube expansion 6-2 makes the passage that suspension gold utensil 6 forms up/down perforation；
The external stability of interior tube expansion 6-2 is provided with outer draw 6-3, and is formed with annular continuous pipe assemblage gap between interior tube expansion 6-2 and outer draw 6-3, and continuous pipe assemblage gap matches with the wall thickness of composite continuous tube 7；The bottom of outer draw 6-3 and hanger 6-1 is fixing to be connected；
The top of composite continuous tube 7 is fixing to be arranged in continuous pipe assemblage gap, hang gold utensil 6 to realize being connected with the fixing of composite continuous tube 7 by continuous pipe assemblage gap, thus realizing fixing composite continuous tube 7 top, and make the passage of composite continuous tube 7 be connected with the passage hanging gold utensil 6, flow up so that the crude oil in composite continuous tube 7 can pass through to hang gold utensil 6, thus realizing logical functional oil；
Hang gold utensil 6 and realize fixing composite continuous tube 7 by the continuous pipe assemblage gap formed between interior tube expansion 6-2 and outer draw 6-3, what formed between tube expansion 6-2 and outer draw 6-3 in utilizing withholds gmatjpdumamics, making composite continuous tube 7 (nonmetallic materials) be combined into one with hanging gold utensil 6 (metal material), being fixed on well head thus being hung at the top of composite continuous tube 7；
Hang gold utensil 6 to increase further composite continuous tube 7 withheld gmatjpdumamics, connecting portion (in namely the inwall of the outer wall of tube expansion 6-2 and outer draw 6-3) at interior tube expansion 6-2 and outer draw 6-3 and composite continuous tube 7 is formed with thread tooth structure, withholds gmatjpdumamics with increase。
Hanger 6-1 is fixedly installed screw pylon 6-4, screw pylon 6-4 offers wire and passes through hole, by the continuous pipe assemblage gap of hanger 6-1 with hang gold utensil 6 be connected externally to lead to, so that the power cable 7-5 of composite continuous tube 7 and data communication optical fiber 7-4 can draw from the screw pylon 6-4 hanging gold utensil 6, it is connected with the transformator 1 on ground and controller 2, thus realizing energising and signal communication function；
Wire is provided with plug screw 6-5 by hole；Plug screw 6-5 is for the sealed insulation of power cable 7-5 and data communication optical fiber 7-4；
Plug screw 6-5 adopts composite；
The main body of hanger 6-1 is the taper under upper size；During use, the body supports of hanger 6-1 is in well head 4 place, so that the composite continuous tube 7 being connected with suspension gold utensil 6 is in suspension status；Owing to main body and the well head 4 of hanger 6-1 are cone match, it is possible to make the hanger 6-1 stationary state still remained stable under stressing conditions。
As shown in Figure 4, down-hole gold utensil 8 includes gold utensil main body 8-2, and the bottom of gold utensil main body 8-2 connects transit joint 9 by screw 8-1 is fixing；
Being fixedly installed in gold utensil in gold utensil main body 8-2 tube expansion 8-3, in gold utensil, tube expansion 8-3 makes down-hole gold utensil 8 form the passage of up/down perforation；
In gold utensil, the external stability of tube expansion 8-3 is provided with the outer draw 8-4 of gold utensil, and is formed with annular continuous pipe assemblage gap between tube expansion 8-3 and the outer draw 8-4 of gold utensil in gold utensil, and continuous pipe assemblage gap matches with the wall thickness of composite continuous tube 7；The top of outer draw 8-4 and the gold utensil main body 8-2 of gold utensil is fixing to be connected；
The bottom of composite continuous tube 7 is fixing to be arranged in continuous pipe assemblage gap, down-hole gold utensil 8 realizes being connected with the fixing of composite continuous tube 7 by continuous pipe assemblage gap, thus realizing fixing bottom composite continuous tube 7, and make the passage of composite continuous tube 7 be connected with the passage of down-hole gold utensil 8, so that crude oil can pass through transit joint 9, down-hole gold utensil 8 flows from bottom to top to composite continuous tube 7, thus realizing logical functional oil；
Down-hole gold utensil 8 realizes fixing composite continuous tube 7 by the continuous pipe assemblage gap formed between the outer draw 8-4 of tube expansion 8-3 in gold utensil and gold utensil, utilize what formed between tube expansion 8-3 and the outer draw 8-4 of gold utensil in gold utensil to withhold gmatjpdumamics, composite continuous tube 7 (nonmetallic materials) and down-hole gold utensil 8 (metal material) is made to be combined into one, thus down-hole is fixed in the bottom by composite continuous tube 7；
In order to increase down-hole gold utensil 8 further composite continuous tube 7 withheld gmatjpdumamics, in gold utensil, the outer draw 8-4 of tube expansion 8-3 and gold utensil and the connecting portion of composite continuous tube 7 (i.e. the inwall of the outer wall of tube expansion 8-3 and the outer draw 8-4 of gold utensil in gold utensil) are formed with thread tooth structure, withhold gmatjpdumamics to increase。
Gold utensil main body 8-2 is fixedly installed screw pylon 8-5, screw pylon 8-5 offers wire and passes through hole, by the continuous pipe assemblage gap of down-hole gold utensil 8 and down-hole gold utensil 8 be connected externally to lead to, so that the power cable 7-5 of composite continuous tube 7 and data communication optical fiber 7-4 can draw from the screw pylon 8-5 of down-hole gold utensil 8, it is connected with down-hole submersible electric machine with oil 13 and downhole sensor 14, thus realizing energising and signal communication function；
Wire is provided with plug screw 8-6 by hole；Plug screw 8-6 is for the sealed insulation of power cable 7-5 and data communication optical fiber 7-4；
Plug screw 8-6 adopts composite。
Claims (8)
1. the suspension gold utensil for submersible electric pump composite continuous tube oil extraction system, it is characterized in that: include hanger (6-1), being fixedly installed interior tube expansion (6-2) in hanger (6-1), interior tube expansion (6-2) makes suspension gold utensil (6) form the passage of up/down perforation；
The external stability of interior tube expansion (6-2) is provided with the outer draw (6-3), and between interior tube expansion (6-2) and the outer draw (6-3), it being formed with annular continuous pipe assemblage gap, continuous pipe assemblage gap matches with the wall thickness of composite continuous tube (7)；
Offering wire on hanger (6-1) by hole, wire is provided with plug screw (6-5) by hole。
2. the suspension gold utensil for submersible electric pump composite continuous tube oil extraction system according to claim 1, it is characterised in that: the connecting portion of described interior tube expansion (6-2) and composite continuous tube (7) is formed with thread tooth structure。
3. the suspension gold utensil for submersible electric pump composite continuous tube oil extraction system according to claim 1 and 2, it is characterised in that: the connecting portion of the described outer draw (6-3) and composite continuous tube (7) is formed with thread tooth structure。
4. the suspension gold utensil for submersible electric pump composite continuous tube oil extraction system according to claim 1, it is characterised in that: the main body of described hanger (6-1) is the taper under upper size。
5. the suspension gold utensil for submersible electric pump composite continuous tube oil extraction system according to claim 1, it is characterised in that: the described outer draw (6-3) is fixing with the bottom of hanger (6-1) to be connected。
6. the suspension gold utensil for submersible electric pump composite continuous tube oil extraction system according to claim 1, it is characterized in that: the top of described composite continuous tube (7) is fixing to be arranged in continuous pipe assemblage gap, hang gold utensil (6) and realize fixing connection the with composite continuous tube (7) by continuous pipe assemblage gap, thus realizing fixing composite continuous tube (7) top, and make the passage of composite continuous tube (7) be connected with the passage hanging gold utensil (6), the crude oil in composite continuous tube (7) flows up so that can pass through to hang gold utensil (6), thus realizing logical functional oil。
7. the suspension gold utensil for submersible electric pump composite continuous tube oil extraction system according to claim 1, it is characterized in that: described screw pylon (6-4) by the continuous pipe assemblage gap of hanger (6-1) with hang gold utensil (6) be connected externally to lead to, so that the power cable (7-5) of composite continuous tube (7) and data communication optical fiber (7-4) can be drawn from the screw pylon (6-4) hanging gold utensil (6), it is connected with the transformator (1) on ground and controller (2), thus realizing energising and signal communication function。
8. the down-hole gold utensil for submersible electric pump composite continuous tube oil extraction system according to claim 1, it is characterised in that: described plug screw (6-5) adopts composite。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128900.0U CN205330599U (en) | 2015-12-30 | 2015-12-30 | A hang gold utensil for diving oily charge pump combined material manages oil recovery system in succession |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128900.0U CN205330599U (en) | 2015-12-30 | 2015-12-30 | A hang gold utensil for diving oily charge pump combined material manages oil recovery system in succession |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330599U true CN205330599U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521128900.0U Active CN205330599U (en) | 2015-12-30 | 2015-12-30 | A hang gold utensil for diving oily charge pump combined material manages oil recovery system in succession |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205330599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494259A (en) * | 2020-04-01 | 2021-10-12 | 中国石油天然气集团有限公司 | Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method |
-
2015
- 2015-12-30 CN CN201521128900.0U patent/CN205330599U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494259A (en) * | 2020-04-01 | 2021-10-12 | 中国石油天然气集团有限公司 | Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method |
| CN113494259B (en) * | 2020-04-01 | 2023-11-28 | 中国石油天然气集团有限公司 | Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 401, Building No. 1618, Xinyang Road, Fengxian District, Shanghai, 201413 Patentee after: Shanghai Feizhou Boyuan Petroleum Equipment Co.,Ltd. Address before: 201203, Shanghai, Pudong New Area Zhangjiang hi tech park, No. 560, midsummer Road, 502A Patentee before: SHANGHAI FB OIL EQUIPMENT TECH Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 401, Building 2 and Room 102, Building 4, No. 1618 Xinyang Road, Fengxian District, Shanghai, 2014 Patentee after: Shanghai Feizhou Boyuan Material Technology Co.,Ltd. Address before: 201413 Room 401, building 2, 1618 Xinyang Road, Fengxian District, Shanghai Patentee before: Shanghai Feizhou Boyuan Petroleum Equipment Co.,Ltd. |
|
| CP03 | Change of name, title or address |