CN205895178U - Equipment is washed to inner wall of oil tubing thorn - Google Patents
Equipment is washed to inner wall of oil tubing thorn Download PDFInfo
- Publication number
- CN205895178U CN205895178U CN201620823068.4U CN201620823068U CN205895178U CN 205895178 U CN205895178 U CN 205895178U CN 201620823068 U CN201620823068 U CN 201620823068U CN 205895178 U CN205895178 U CN 205895178U
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- Prior art keywords
- wall
- oil
- tube inner
- sebific duct
- pipe
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Abstract
The utility model discloses an equipment is washed to inner wall of oil tubing thorn, include: sealed director, rubber tube, tractor, synchronous rolling machine and the inner wall of the oil tubing purger, hydraulic pressure crane and flexible rain -proof cover, sealed director includes casing and clamp, and casing one side is provided with the discharge opening, and the discharge opening is linked together with the defeated oil pipe net in underground through water -drain mast and recovery pump, synchronous rolling machine sets up between sealed director and rolling machine in rolling rubber tube, tractor, and the tractor is used for pulling the rubber tube, rubber tube one end pass behind the tractor with the rolling machine on the rubber tube water inlet be linked together, the rubber tube other end and the inner wall of the oil tubing purger intercommunication. The application provides an equipment is washed to inner wall of oil tubing thorn is a portable equipment, during the transportation and the heating furnace adorn together on the car, during the use, unload with the crane and put in the well site, before oil pipe provides the well head, sting the oil pipe inner wall in the oil well and wash. Both using water wisely, reduce cost have reached the environmental protection purpose that sump oil sewage does not fall to the ground again.
Description
Technical field
The utility model is related to petroleum industry cleaning oil pipe technical field, and more particularly to a kind of tube inner wall thorn is washed and set
Standby.
Background technology
In oil recovery process, because of oil pipe, the fouling of beam hanger, wax deposition, return a variety of causes such as sand, abrasion, need to carry out oil well
Operation, repairs to oil well.During oil well operation, the dirt removing tube inner wall is the important step that oil well is repaired.
The cleaning way using at present mainly has three kinds: the first is back flushing: hot water is pressed into, returns from oil pipe from sleeve pipe
Go out, both wasted substantial amounts of water, paid off and do not wash clean；Second is to transport the cleaning of pipe factory back, increased freight and transportation
In security risk；The third is that oil pipe is placed in well site, is rinsed with hydraulic giant be aligned tube inner wall, rinses the sump oil producing dirty
Water becomes scattered about well site, pollutes environment.
In sum, existing tube inner wall cleaning technique exists and does not wash clean clearly, pollutes environment, the problem of high cost.
Utility model content
The purpose of this utility model is to provide a kind of tube inner wall thorn to wash equipment, during for oil well operation, right in oil well
Oil pipe enters assassination and washes, to solve the problems, such as above-mentioned prior art.
For achieving the above object, the utility model provides following scheme:
A kind of tube inner wall thorn washes equipment, clear including sealing guider, sebific duct, hauling machine, synchronous winding machine, tube inner wall
Wash device, recovery pump, hydraulic lifting frame and rain cover；
Described sealing guider includes directive wheel, guide wheel bracket and housing, and described housing is the internal tubulose for through hole
It is provided with cushion rubber in structure, and described housing, above described cushion rubber, is provided with hold-down ring, described housing is arranged on a clip
Face, described clip is arranged on blowout-proof apparatus of oil well upper end, is provided with oil-pipe external wall clear between described clip and described blowout-proof apparatus of oil well
Wash device, described blowout-proof apparatus of oil well is arranged on oil well casing top；Described housing side is provided with discharge opening, and described discharge opening passes through
Tapping pipe and recovery pump are connected with underground oil pipe network；Described guide wheel bracket is arranged on described oil-pipe external wall washer one
Side, described guide wheel bracket top is provided with described directive wheel.
Described synchronous winding machine is used for winding described sebific duct.It is same with described that described hauling machine is arranged at described sealing guider
Between step winder, and described hauling machine is used for drawing described sebific duct；
Described sebific duct one end is connected with the sebific duct water inlet on described synchronous winding machine after passing through described hauling machine；Described
The sebific duct other end is connected with described tube inner wall washer.
Alternatively, described hauling machine includes the first motor, the second motor, conveyer belt and support, described first motor one end
Be fixedly connected on the bracket, described second motor one end mobile link on the bracket, described first motor with described
The second motor other end is respectively arranged with power transmission shaft, and described power transmission shaft is provided with conveyer belt.
Alternatively, described synchronous winding machine includes variable-frequency motor, cylinder, swivel joint and right angle water-supply-pipe；Described cylinder
One end is provided with sprocket wheel, and described sprocket wheel is connected with described variable-frequency motor by chain；The described cylinder other end is disposed with
Described right angle water-supply-pipe, described first swivel joint, described intake valve and described hot water valve；Described cylinder is arranged at a bracket
On, described bracket is provided with automatic control box, for controlling drum rotation speed, thus reaching winder and hauling machine synchronously fortune
OK.
Alternatively, described cylinder side is provided with strand oscillator, and described strand oscillator is mechanical strand oscillator, and described sebific duct passes through institute
State orderly winding after strand oscillator on which cylinder.
Alternatively, described tube inner wall washer is internally provided with water containing chamber, and described tube inner wall washer is included outward
Shell, nozzle and pipe plug, described housing top end is provided with the second swivel joint, and described second swivel joint is connected with described sebific duct
Logical, described shell bottom is provided with described pipe plug, and described nozzle is uniformly arranged on the housing.Described nozzle is oblique to be divided into
Put, become 45 degree of angles with described tube inner wall.
Alternatively, described steel wire rope one end is arranged on filament winding machine, and the other end is arranged on the setting position of described sebific duct outer wall
Put.
Alternatively, described hydraulic lifting frame is arranged on described synchronous winding machine, described hauling machine, described strand oscillator, described
Around recovery pump, and connect integral.
Alternatively, described rain cover is arranged on above described hauling machine and described synchronous winding machine by support, described anti-
Canopy is extension type rain cover.
The utility model achieves following technique effect with respect to prior art: the utility model passes through in oil well operation mistake
Cheng Zhong, setting sealing guider, sebific duct, hauling machine, synchronous winding machine, tube inner wall washer, recovery pump and hydraulic lifting frame,
Before oil pipe proposes well head, using sebific duct, inwall jetter is sent into oil well depths, tube inner wall is pierced from bottom to top wash clean；
Thorn is washed the oil water mixture press-in underground oil pipe network of generation simultaneously.Both using water wisely, reduces cost, has evaded oil pipe again
Backhaul defeated during security risk, realize clean operation, reached the environmental protection purpose that sump oil sewage does not land.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
In required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the structural representation that in the utility model embodiment, tube inner wall thorn washes equipment；
Fig. 2 is the structural representation sealing guider in the utility model embodiment；
Fig. 3 is the structural representation of hauling machine and synchronous winding machine in the utility model embodiment；
Fig. 4 is the structural representation of tube inner wall washer in the utility model embodiment；
In figure: 1- sealing guider, 2- sebific duct, 3- hauling machine, 4- synchronous winding machine, 5- tube inner wall washer, 6- let out
Water pipe, 7- recovery pump, 8- underground oil pipe network, 9- oil-pipe external wall washer, 10- blowout-proof apparatus of oil well, 11- oil well casing, 12- oil
Well oil pipe, 13- hold-down ring, 14- cushion rubber, 15- housing, 16- discharge opening, 17- directive wheel, 18- guide wheel bracket, 19- clip,
20- conveyer belt, 21- power transmission shaft, 22- first motor, 23- second motor, 24- support, 25- strand oscillator, 26- sprocket wheel, 27- chain
Bar, 28- variable-frequency motor, 29- automatic control box, 30- bracket, 31- cylinder, 32- sebific duct water inlet, 33- right angle water-supply-pipe, 34-
Drum connecting duct, 35- first swivel joint, 36- intake valve, 37- hot water valve, 38- second swivel joint, 39- shell, 40- hold
Water cavity, 41- nozzle, 42- pipe plug, 43- hydraulic lifting frame, 44- rain cover, 45- steel wire rope, 46- filament winding machine.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of the utility model protection.
The purpose of this utility model is to provide a kind of tube inner wall thorn to wash equipment, to solve the problems, such as prior art.
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
Embodiment 1
The present embodiment provides a kind of tube inner wall thorn to wash equipment, as shown in figure 1, including sealing guider 1, sebific duct 2, traction
Machine 3, synchronous winding machine 4 and tube inner wall washer 5, recovery pump 7, hydraulic lifting frame 43；
As shown in Fig. 2 sealing guider 1 includes directive wheel 17, guide wheel bracket 18 and housing 15, housing 15 for inside is
It is provided with cushion rubber 14, cushion rubber 14 is provided with hold-down ring 13 above, and sebific duct 2 can be from cushion rubber in the tubular structure of through hole, and housing 15
In 14 pass through, sebific duct 2 surrounding needs during sealing to compress hold-down ring 13, when not needing sealing around sebific duct 2, unclamps hold-down ring
13, sebific duct can free in and out；Housing 15 bottom is arranged on clip 19 top, and clip 19 bottom is arranged on blowout-proof apparatus of oil well 10
End, is provided with oil-pipe external wall washer 9, blowout-proof apparatus of oil well 10 is arranged on oil well casing 11 between clip 19 and blowout-proof apparatus of oil well 10
Top；Housing 15 side is provided with discharge opening 16, and discharge opening 16 passes through tapping pipe 6 and recovery pump 7 is connected with underground oil pipe network 8
Logical, the effect of recovery pump 7 is to suction out the oil water mixture producing in cleaning process via tapping pipe 6, presses after improving pressure again
Enter underground oil pipe network 8；Guide wheel bracket 18 is arranged on oil-pipe external wall washer 9 side, and guide wheel bracket 18 top is provided with
Directive wheel 17.
In the present embodiment, hauling machine 3 is arranged between sealing guider 1 and synchronous winding machine 4, and hauling machine 3 is used for leading
Draw sebific duct 2, synchronous winding machine 4 is used for winding sebific duct 2；Tensile steel wire rope 45 is provided with sebific duct 2, steel wire rope 45 one end is arranged on
On the setting position of sebific duct 2, the other end is wrapped on filament winding machine 46, during use, ensures that sebific duct 2 will not be pulled damage；
Sebific duct 2 one end is connected with the sebific duct water inlet 32 on synchronous winding machine 4 after passing through hauling machine 3；In sebific duct 2 other end and oil pipe
Wall washer 5 connects.
Specifically, in the present embodiment, sebific duct 2 in the presence of hauling machine 3 with synchronous winding machine 4, through sealing guider 1
Transfer to afterwards inside oil pipe.Current in sebific duct 2 are carried out to oil well oil conduit 12 inwall by tube inner wall washer 5,
Clean in lifting, until inner-wall cleaner 5 proposes well head；In cleaning process, start recovery pump 7 simultaneously, cleaning is produced
Oil water mixture suction out via tapping pipe 6, then be pressed into underground oil pipe network 8；
Embodiment 2
The present embodiment is the knot on the basis of embodiment 1 to hauling machine, synchronous winding machine and tube inner wall washer
The reasonable setting that structure has been carried out, particularly as follows:
Hauling machine 3 in the present embodiment includes the first motor 22, the second motor 23, conveyer belt 20 and support as shown in Figure 3
24, the first motor 22 one end is fixedly connected on support 24, the second motor 23 one end mobile link on support 24, the first motor
22 and the second motor 23 other end be respectively arranged with power transmission shaft 21, power transmission shaft 21 is provided with conveyer belt 20；Sebific duct 2 is defeated at two
Send and pass through between band 20, the bolt of adjustment the second motor, with conveyer belt 20, sebific duct appropriateness is clamped；
Synchronous winding machine 4 in the present embodiment includes variable-frequency motor 28, cylinder 31, swivel joint 35 and right angle water-supply-pipe
33；Cylinder 31 one end is provided with sprocket wheel 26, and sprocket wheel 26 is connected with variable-frequency motor 28 by chain 27；Cylinder 31 other end is successively
It is connected with right angle water-supply-pipe 33, the first swivel joint 35, intake valve 36 and hot water valve 37；First swivel joint 35 is in cylinder 31 He
Between hot water valve 36, its effect is, when cylinder 31 rotates, intake valve 36 and hot water valve 37 maintain static；The work of intake valve 36
With being that thorn is washed after end, will be clean for extraction raffinate purging in sebific duct 2 with air, prevent freezed in winter blocking sebific duct.
Cylinder 31 is arranged on bracket 30, and bracket 30 is provided with automatic control box 29, and automatic control box 29 controls cylinder
31 rotating speed, the elasticity of adjust automatically sebific duct 2, thus realize winding and traction synchronous operation；
Cylinder 31 side is provided with strand oscillator 25, and strand oscillator 25 can adopt mechanical strand oscillator, and cross ditch winding displacement may also be employed
Device, sebific duct 2 passes through orderly being wrapped on cylinder 31 after strand oscillator 25.
As shown in figure 4, tube inner wall washer 5 is internally provided with water containing chamber 40, and tube inner wall washer 5 includes shell
39th, nozzle 41 and pipe plug 42, shell 39 top is provided with the second swivel joint 38, and the second swivel joint 38 connects with sebific duct 2, outward
Shell 39 bottom is provided with pipe plug 42, and pipe plug 42 prevents water from spilling from washer bottom；It is water containing chamber 40 in shell 39, nozzle 41 is equal
On shell 39, nozzle 41 one end enters water containing chamber 40 to cloth, and the other end is exposed in oil well oil conduit 12；Nozzle 41 is arranged obliquely,
Can also arrange obliquely, become 45 degree of angles with oil well oil conduit 12 inwall；360 ° of thorn washing oil wells oil pipes 12 of the water energy that nozzle 41 sprays
Inwall.
Embodiment 3
The present embodiment is to sealing further describing of carrying out of guider on the basis of embodiment 1 or embodiment 2, specifically
For:
As shown in Fig. 2 sealing guider 1 also includes directive wheel 17 and guide wheel bracket 18, guide wheel bracket 18 is arranged on
Oil-pipe external wall washer 9 top side, guide wheel bracket 18 top is provided with directive wheel 17；Wherein oil-pipe external wall washer 9 sets
Put between clip 19 and blowout-proof apparatus of oil well 10；The license bending diameter with diameter greater than sebific duct 2 of directive wheel 19, can drive glue
Pipe 2 90-degree bent, can ensure that sebific duct 2 is not rolled over bad again.
The utility model tube inner wall thorn washes the course of work of equipment, specific as follows:
Before cleaning tubing 12 inwall, hot water valve 37 is connected with the swivel joint 35 of synchronous winding machine 4, start variable-frequency motor
28 reversions run, and sebific duct 2 is transferred from the cylinder 31 of synchronous winding machine 4 round and round, and the sebific duct 2 of decentralization passes through hauling machine
3 conveyer belt 20, arrival sebific duct directive wheel 17, become vertical direction by level, pass downwardly through sealing guider 1 and enter oil well oil
In pipe 12, through projected depth.
Open hot water valve 37, the hot water of introducing passes sequentially through the first swivel joint 35, right angle water-supply-pipe 33, sebific duct 2, second
Swivel joint 38, until in the water containing chamber 40 of tube inner wall washer 5, nozzle 41, the downward 45 ° inwalls being sprayed onto oil well oil conduit 12
On, with the gradually lifting of sebific duct 2, tube inner wall washer 5 moves up in water spray, by the inwall of oil well oil conduit 12 under
And upper thorn wash clean.
During sebific duct 2 lifting, tensile steel wire rope 45 and sebific duct 2 synchronization rise.By hauling machine 3 and synchronous winding machine 4 by sebific duct 2
Well head is proposed upwards.
The oil water mixture producing in cleaning process moves up, and is flowed out from oil pipe 12 by tapping pipe 6, then by recovery pump
7 press-in underground oil pipe networks 8.Realization is heated, thorn is washed, reclaim synchronization is carried out, and has reached the environmental protection operation that sump oil sewage does not land
Purpose.
Embodiment 4
As shown in figure 3, making a hydraulic lifting frame 43, by hauling machine 3, strand oscillator 25, synchronous winding machine 4 and recovery pump
7 are fixed on crane in an orderly manner, become an entirety.During use, start crane, be integrally discharged at building-site；During transport, open
Dynamic crane, integral installation is on automobile.
Embodiment 5
As shown in figure 3, oil well cleaning equipment of inner wall is a kind of mobile unit, well site uses in the wild, for preventing from drenching with rain,
Protection equipment, improve working environment, be provided with extension type rain cover 44, the used time pulls out rain cover, not the used time push in frame and hide.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The utility model applies specific case and principle of the present utility model and embodiment is set forth, above reality
The explanation applying example is only intended to help understand method of the present utility model and its core concept；General simultaneously for this area
Technical staff, according to thought of the present utility model, all will change in specific embodiments and applications.To sum up,
This specification content should not be construed as to restriction of the present utility model.
Claims (8)
1. a kind of tube inner wall thorn washes equipment, including sealing guider, sebific duct, hauling machine, synchronous winding machine, tube inner wall cleaning
Device, recovery pump, hydraulic lifting frame, filament winding machine and rain cover；It is characterized in that:
Described sealing guider includes directive wheel, guide wheel bracket and housing, and described housing is the internal tubular structure for through hole,
And it is provided with cushion rubber in described housing, it is provided with hold-down ring above described cushion rubber, described housing is arranged on above a clip, described
Clip is arranged on blowout-proof apparatus of oil well upper end, is provided with oil-pipe external wall washer, institute between described clip and described blowout-proof apparatus of oil well
State blowout-proof apparatus of oil well and be arranged on oil well casing top；Described housing side is provided with discharge opening, and described discharge opening passes through tapping pipe
And recovery pump is connected with underground oil pipe network；Described guide wheel bracket is arranged on described oil-pipe external wall washer side, described
Guide wheel bracket top is provided with described directive wheel；
Described synchronous winding machine is used for winding described sebific duct, and described hauling machine is arranged at described sealing guider and described winder
Between, and described hauling machine is used for drawing described sebific duct；
Described sebific duct one end is connected with the sebific duct water inlet on described synchronous winding machine after passing through described hauling machine；Described sebific duct
The other end is connected with described tube inner wall washer.
2. a kind of tube inner wall thorn according to claim 1 wash equipment it is characterised in that: described hauling machine includes the first electricity
Machine, the second motor, conveyer belt and support, described first motor one end is fixedly connected on the bracket, described second motor one
On the bracket, described first motor and the described second motor other end are respectively arranged with power transmission shaft to end mobile link, described
Conveyer belt is provided with power transmission shaft.
3. a kind of tube inner wall thorn according to claim 1 wash equipment it is characterised in that: described synchronous winding machine includes becoming
Frequency motor, cylinder, the first swivel joint and right angle water-supply-pipe；Described cylinder one end is provided with sprocket wheel, and described sprocket wheel passes through chain
It is connected with described variable-frequency motor；The described cylinder other end be disposed with described right angle water-supply-pipe, described first swivel joint,
Intake valve and hot water valve；Described cylinder is arranged on a bracket, described bracket is provided with automatic control box, for controlling cylinder
Rotating speed, thus reach winder and hauling machine synchronous operation.
4. a kind of tube inner wall thorn according to claim 3 wash equipment it is characterised in that: described cylinder side is provided with winding displacement
Device, described strand oscillator is mechanical strand oscillator, and the orderly winding through after described strand oscillator of described sebific duct is on which cylinder.
5. a kind of tube inner wall thorn according to claim 1 wash equipment it is characterised in that: in described tube inner wall washer
Portion is provided with water containing chamber, and described tube inner wall washer includes shell, nozzle and pipe plug, and described housing top end is provided with
Two swivel joints, described second swivel joint is connected with described sebific duct, and described shell bottom is provided with described pipe plug, described spray
Mouth is uniformly arranged on the housing, and described nozzle is arranged obliquely, becomes 45 degree of angles with described tube inner wall.
6. a kind of tube inner wall thorn according to claim 4 wash equipment it is characterised in that: described filament winding machine is arranged at described
Strand oscillator side, described filament winding machine is provided with steel wire rope, and described steel wire rope one end is arranged on filament winding machine, and described steel wire rope is another
One end is arranged on the setting position of described sebific duct outer wall.
7. a kind of tube inner wall thorn according to claim 4 wash equipment it is characterised in that: described hydraulic lifting frame is arranged on
Around described synchronous winding machine, described hauling machine, described strand oscillator, described recovery pump, and connect integral.
8. a kind of tube inner wall thorn according to claim 1 wash equipment it is characterised in that: described rain cover passes through to set up
Put above described hauling machine with described synchronous winding machine, described rain cover is extension type rain cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823068.4U CN205895178U (en) | 2016-08-02 | 2016-08-02 | Equipment is washed to inner wall of oil tubing thorn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823068.4U CN205895178U (en) | 2016-08-02 | 2016-08-02 | Equipment is washed to inner wall of oil tubing thorn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895178U true CN205895178U (en) | 2017-01-18 |
Family
ID=57783388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620823068.4U Expired - Fee Related CN205895178U (en) | 2016-08-02 | 2016-08-02 | Equipment is washed to inner wall of oil tubing thorn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205895178U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050172A (en) * | 2016-08-02 | 2016-10-26 | 玉人超导石油设备有限公司 | Oil-pipe inner-wall stabbing washing device |
| CN106978989A (en) * | 2017-04-21 | 2017-07-25 | 玉人超导石油设备有限公司 | Oil well operation Environment protection cleaning car |
| CN108246545A (en) * | 2018-01-29 | 2018-07-06 | 天智羲王管道科技有限公司 | A kind of silver ion graphene cement throwing jet sewage conduct inner wall surface processing system |
| CN109915049A (en) * | 2019-04-10 | 2019-06-21 | 中国石油大学胜利学院 | A kind of closed oil well washer |
-
2016
- 2016-08-02 CN CN201620823068.4U patent/CN205895178U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050172A (en) * | 2016-08-02 | 2016-10-26 | 玉人超导石油设备有限公司 | Oil-pipe inner-wall stabbing washing device |
| CN106050172B (en) * | 2016-08-02 | 2018-08-24 | 玉人超导石油设备有限公司 | A kind of tube inner wall thorn washes equipment |
| CN106978989A (en) * | 2017-04-21 | 2017-07-25 | 玉人超导石油设备有限公司 | Oil well operation Environment protection cleaning car |
| CN108246545A (en) * | 2018-01-29 | 2018-07-06 | 天智羲王管道科技有限公司 | A kind of silver ion graphene cement throwing jet sewage conduct inner wall surface processing system |
| CN109915049A (en) * | 2019-04-10 | 2019-06-21 | 中国石油大学胜利学院 | A kind of closed oil well washer |
| CN109915049B (en) * | 2019-04-10 | 2021-11-30 | 中国石油大学胜利学院 | Closed oil well cleaner |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20190802 |