CN103015938A - Intelligent hydraulic wellhead sealer - Google Patents
Intelligent hydraulic wellhead sealer Download PDFInfo
- Publication number
- CN103015938A CN103015938A CN2012103926826A CN201210392682A CN103015938A CN 103015938 A CN103015938 A CN 103015938A CN 2012103926826 A CN2012103926826 A CN 2012103926826A CN 201210392682 A CN201210392682 A CN 201210392682A CN 103015938 A CN103015938 A CN 103015938A
- Authority
- CN
- China
- Prior art keywords
- intelligent hydraulic
- polished rod
- overcoat
- ring
- sealing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an intelligent hydraulic wellhead sealer, which comprises a polish rod, wherein the middle of the polish rod is sleeved with a paraffin removal valve; the polish rod is provided with a plurality of sealing rings; and the sealing rings are sleeved on the polish rod. The intelligent hydraulic wellhead sealer is simple in structure, convenient to assemble and disassemble, good in sealing property and long in service cycle; eccentric wear of the polish rod can be prevented, an oil passage can be automatically sealed when the polish rod is broken to realize a function of preventing blowout; the working performance is high, the environmental pollution to a working site is reduced, the cost is reduced, and the product is economical, intelligent, practical and environment-friendly; the rear end of the polish rod is sleeved with an air isolating tube, and when the polish rod works to a lower dead center, underground waste gas is timely discharged out of an inner cavity of the intelligent hydraulic wellhead sealer, and the inner cavity of the intelligent hydraulic wellhead sealer releases pressure to reduce the friction between the polish rod and the sealing rings, so that the service life of each sealing ring is more than one year, related parts are not required to be replaced, the cost is saved by 80 percent, an operating area is pollution-free, the environment reaches the standard, electricity is saved by 7-8KW/H daily compared with that of a single well, and the intelligent hydraulic wellhead sealer is convenient to promote and use.
Description
Technical field
The present invention relates to a kind of wellhead sealing device, be specially a kind of intelligent hydraulic formula wellhead sealing device, belong to the wellhead equipment that oil exploitation is used.
Background technology
Because oil pumper, oil well pump pump will do and pump for 3153600 times every year, just need a kind of product heat-resisting, corrosion-resistant, wear-resisting material seal is between wellhead polish rod, conventional in the past is butter packing_seal and mechanical seal with encapsulant, and above-mentioned material all can not solve the wear-resisting problem of long term seal, uses a period of time just to have gas, oil, water to spill the ground pollution environment, the workman that causes recovering the oil constantly adjusts, fastening, the cleaning well head.Present employed fluid pressure type polished rod sealer, be provided with endoporus, level and smooth packing, the tapering packing, be contained in the connecting cylinder of plunger, its shortcoming is the down-hole exhaust gas pressure can not be discharged, increased the load of oil pumper, exhaust gas pressure impulse wave and bore seal part form normal pressure, make it lose the sealing effectiveness of each seal, transfer performance poor, the phenomenon during formation polished rod eccentric wear can not be transferred automatically causes making its frequent packing and associated components in addition, dismantle inconvenient operation, on-the-spot leakage of oil, gas leakage, leak seriously polluted, operating efficiency is low, has increased cost, has reduced oil production.
Summary of the invention
For the deficiency that prior art exists, technical problem to be solved by this invention is, a kind of intelligent hydraulic formula wellhead sealing device is provided, and integrate wellhead polish rod and seals, prevents that sucker rod is partially petty, prevents oil-well blowing and auto-control three functions.
For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions: a kind of intelligent hydraulic formula wellhead sealing device, comprise polished rod, and polished rod middle part cover has the wax removal valve, is provided with some joint rings on its polished rod, and seal ring set is on polished rod.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device, its joint ring adopt metal to make.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device, the gap between its polished rod and the joint ring is 0.5mm.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device, its joint ring overcoat has seal, and the longitudinal section of seal is the T font, is provided with steel lining between seal and the polished rod; Described joint ring and steel lining are torus, are placed on the polished rod; Described paraffin valve is held the overcoat that has been threaded in front of the door, and the seal overcoat has guard ring, and the seal front end is provided with support ring, is provided with O type circle I between support ring and the overcoat.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device, the front end of its seal is provided with pressure ring, and pressure ring is outside equipped with adjusting sleeve, and the outer rim of adjusting sleeve is connected with the inner thread of overcoat; The front end of described adjusting sleeve is provided with adapter sleeve, and adapter sleeve is fixedly connected with the front end of overcoat by pressure cap; The inwall of described pressure cap is threaded with the end outer rim of overcoat; Described adapter sleeve is placed on the polished rod, and the front end of adapter sleeve is provided with upper press cover, and upper press cover is threaded with adapter sleeve.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device, the rear end of its wax removal valve is connected with eccentric spheroid, and the inwall of eccentric spheroid is threaded with the outer rim of wax removal valve; Cover has large pressure cap on the described eccentric spheroid, is provided with the bulb pressure ring between eccentric spheroid and the large pressure cap, and an end of large pressure cap is connected with lower contact, and lower contact is placed on the eccentric spheroid, and the inner chamber of eccentric spheroid is provided with nylon ball.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device, the rear end cover of its lower contact has the trapping pipe, and the trapping pipe box is on polished rod.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device, be provided with O type circle II between its wax removal valve and the overcoat, be provided with O type circle III between adapter sleeve and the overcoat, be provided with two-layer O type circle IV between the inwall of eccentric spheroid and the outer rim of wax removal valve, be provided with O type circle V on eccentric spheroid and the lower contact contact surface.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device is provided with back-up ring between its pressure ring and the seal; The front end of described eccentric spheroid is provided with locking nut, the locking nut wax removal valve that is threaded.
Optimize, above-mentioned intelligent hydraulic formula wellhead sealing device is provided with sealing mat I in the cavity that its upper press cover and adapter sleeve form; Be provided with sealing mat II in the cavity that described eccentric spheroid and wax removal valve form; Described sealing mat I, sealing mat II and O type circle all adopt rubber to make.
The present invention is simple in structure, removes and installs conveniently, and good seal performance, life cycle is long; Can prevent the polished rod eccentric wear, but self-closed oil duct when preventing the polished rod fracture plays the effect that prevents blowout; Operating efficiency is high, reduces the environment pollution of operation field, and Cost reduction, makes product economy, intellectuality, practical and environmental protection; The rear end cover of polished rod has the trapping pipe, when polished rod is done manual work lower dead center, make down-hole waste gas in time get rid of outside the inner chamber of the present invention, make it inner chamber release of the present invention, alleviate the friction between polished rod and the joint ring, thereby reach each seal operating period more than 1 year, need not to change relevant parts, make it save cost 80%, it is pollution-free that the operation area reaches, and environment is up to standard, and individual well is compared a day using electricity wisely 7-8KW/H, the present invention can only need change relevant parts according to the polished rod of user's needs different size and can use, and is convenient to promote the use of.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1.
The specific embodiment
Further set forth technical characterstic of the present invention below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1
As depicted in figs. 1 and 2, the present invention is a kind of intelligent hydraulic formula wellhead sealing device, comprise polished rod 23, during use product is installed on well mouth of oil well, polished rod 23 vertically runs through this intelligent hydraulic formula wellhead sealing device, polished rod 23 connects the polished rod eye of oil pumper, oil pumper is connected up and down with oil well pump moves reciprocatingly.Polished rod 23 middle parts covers has wax removal valve 14, the wax removal valve 14 front ends overcoat 11 that has been threaded, and is provided with three joint rings 12 in the cavity of its overcoat 11 and polished rod 23, and joint ring 12 is placed on the polished rod 23; Joint ring adopts metal to make, and the gap between polished rod 23 and the joint ring 12 is 0.5mm, and oil-extractor polish-rod 23 is descending during work, on product joint ring 12 tops, fill with butter, lubricate in polished rod 23, make polished rod 23 descending more smooth, more sealing spills without oil, gas, water.Seal 8 front ends are provided with pressure ring 6, and pressure ring 6 is outside equipped with adjusting sleeve 5, and the outer rim of adjusting sleeve 5 is connected with the inner thread of overcoat 11; When profit arrives product joint ring 12, because lifting the pressure of liquid, oil well pump constantly increases, make liquid be dipped in the metal ring outside, effect by oil pressure, joint ring 12 effective clearances are tightened, closely are encapsulated in above the polished rod 23, when pressure larger, joint ring 12 is sealed by extrusion tighter, tighter, makes oil, gas, water must not spill the well head outside.The front end of adjusting sleeve 5 is provided with adapter sleeve 3, and adapter sleeve 3 is fixedly connected with by the front end of pressure cap 4 with overcoat 11; The inwall of described pressure cap 4 is threaded with the end outer rim of overcoat 11; Described adapter sleeve 3 is placed on the polished rod 23, and the front end of adapter sleeve 3 is provided with upper press cover 1, and upper press cover 1 is threaded with adapter sleeve 3; Seal 8 longitudinal sections are the T font, are provided with joint ring 12 and steel lining 13 between seal 8 and the polished rod 23; Described joint ring 12 and steel lining 13 are torus, are placed on the polished rod 23; Described seal 8 overcoats have guard ring 9, and seal 8 front ends are provided with support ring 10, are provided with O type circle I 27 between support ring 10 and the overcoat 11.Be provided with O type circle II26 between wax removal valve 14 and the overcoat 11, be provided with O type circle III 28 between adapter sleeve 3 and the overcoat 11, be provided with two-layer O type circle IV25 between the inwall of eccentric spheroid 16 and the outer rim of wax removal valve 14, be provided with O type circle V24 on eccentric spheroid 16 and lower contact 21 contact surfaces.Be provided with back-up ring 7 between pressure ring 6 and the seal 8; The front end of eccentric spheroid 16 is provided with locking nut 15, the locking nut 15 wax removal valve 14 that is threaded; Be provided with sealing mat I2 in the cavity that upper press cover 1 and adapter sleeve 3 form.Sealing device can be three grades, when oil pumper workmanship profit pressure arrives the first order, it is to enter in the cavity between seal and the overcoat by the Oil Guide slotted eye that the down-hole produces fluid pressure, producing fluid pressure makes the first joint ring form impulse wave, first order joint ring 12 work start working and barrier second group, the 3rd group of oil pressure passes through, second group, the 3rd group joint ring do not worked, inoperative, play effect for subsequent use.Exaggerate when first group of ring damages or wear and tear, when inoperative, second group of joint ring started working, and by that analogy, thereby this product is long service time, forms product multiple-sealed, has played non-maintaining effect.
The rear end of wax removal valve 14 is connected with eccentric spheroid 16, and the inwall of eccentric spheroid 16 is threaded with the outer rim of wax removal valve 14.When oil pumper installation and well head centering, job requirements is very tight, but also has certain error, after oil pumper uses a period of time in addition again, when working owing to fuselage vibrations and underground working and holddown etc. reason, cause beam hanger for pumping machine and well head decentraction deflection, cause polished rod 23 and well head misalignment, for addressing this problem, for this reason, in this product, designed an anti-eccentric wearing device, namely be comprised of eccentric spheroid 16, when polished rod 23 up-downgoing decentraction, this device can be automatically anti-bias according to the track that departs from, anti-drift angle reaches 9 degree 30 minutes, has thoroughly solved the eccentric wear problem of oil-extractor polish-rod 23 decentraction.Cover has large pressure cap 19 on the eccentric spheroid 16, be provided with bulb pressure ring 18 between eccentric spheroid 16 and the large pressure cap 19, one end of large pressure cap 19 is connected with lower contact 21, lower contact 21 is placed on the eccentric spheroid 16, the inner chamber of eccentric spheroid 16 is provided with nylon ball 20, when polished rod 23 drops to the down-hole or is drawn out joint ring 12, be cavity in the wellhead sealing ring, the liquids and gases of higher-pressure region spray to the outside in the oil well like this, at this moment the nylon ball 20 of anti-spray chamber in well the higher-pressure region and outer low pressure between automatically float to the cavity top low-pressure area of eccentric sphere body, clogging cavity lane, the control blowout.Be provided with sealing mat II 17 in the cavity that eccentric spheroid 16 and wax removal valve 14 form.Its sealing mat I2 and sealing mat II 17 adopt rubber to make, O type circle I27, O type circle II26, O type circle III28, O type circle IV25 and O type circle V24 all adopt rubber to make, for example made by high temperature resistant molecule synthesis butadiene acrylonitrile rubber, heatproof 120C °-150C °, hardness Bu Shi 75-85KG.
The rear end cover of lower contact 21 has trapping pipe 22, trapping pipe 22 is placed on the polished rod 23, oil well pump work when polished rod 23 is up, the oil well pump effect makes and has all produced higher pressure on every side to wellhead polish rod 23 in the oil pipe and do not wait, when the oil gas body was raised to well head top, the joint rear end was arranged with trapping pipe 22, by trapping pipe 22 gas was led to outside the chamber of pressure bottom, make the gas flow low-pressure area, played the effect that gas does not leak.Because waste gas is in time discharged outside the inner chamber of the present invention, make inner chamber release of the present invention, alleviate the friction of polished rod 23 and joint ring 12, thereby reach each seal operating period more than 1 year, need not to change relevant parts, make it save cost 80%, it is pollution-free that the operation area reaches, environment is up to standard, and individual well is day using electricity wisely 7-8KW/H compared to existing technology.
Embodiment 2
The difference of the present embodiment and embodiment 1 is: be provided with two joint rings 12 in the cavity of overcoat 11 and polished rod 23.
Embodiment 3
The difference of the present embodiment and embodiment 1 is: be provided with four joint rings 12 in the cavity of overcoat 11 and polished rod 23.
Above demonstration and described basic principle of the present invention and principal character and advantage thereof.The technology personage of the industry should understand; the present invention is not subjected to the restriction of above-mentioned implementing regulations; what describe in above-mentioned implementing regulations and the manual is to be used for illustrating principle of the present invention; under the prerequisite that does not break away from the principle of the invention and scope; the present invention also can have various changes and modifications, and these changes and improvements all belong in the claimed scope of the invention.
The claimed scope of the present invention defines with appending claims and other equivalent.
Claims (10)
1. an intelligent hydraulic formula wellhead sealing device comprises polished rod, and polished rod middle part cover has the wax removal valve, and it is characterized in that: be provided with some joint rings on the described polished rod, seal ring set is on polished rod.
2. intelligent hydraulic formula wellhead sealing device according to claim 1 is characterized in that: described joint ring adopts metal to make.
3. intelligent hydraulic formula wellhead sealing device according to claim 2, it is characterized in that: the gap between described polished rod and the joint ring is 0.5mm.
4. intelligent hydraulic formula wellhead sealing device according to claim 3, it is characterized in that: described joint ring overcoat has seal, and the longitudinal section of seal is the T font, is provided with steel lining between seal and the polished rod; Described joint ring and steel lining are torus, are placed on the polished rod; Described paraffin valve is held the overcoat that has been threaded in front of the door, and the seal overcoat has guard ring, and the seal front end is provided with support ring, is provided with O type circle I between support ring and the overcoat.
5. intelligent hydraulic formula wellhead sealing device according to claim 4, it is characterized in that: the front end of described seal is provided with pressure ring, and pressure ring is outside equipped with adjusting sleeve, and the outer rim of adjusting sleeve is connected with the inner thread of overcoat; The front end of described adjusting sleeve is provided with adapter sleeve, and adapter sleeve is fixedly connected with the front end of overcoat by pressure cap; The inwall of described pressure cap is threaded with the end outer rim of overcoat; Described adapter sleeve is placed on the polished rod, and the front end of adapter sleeve is provided with upper press cover, and upper press cover is threaded with adapter sleeve.
6. intelligent hydraulic formula wellhead sealing device according to claim 5, it is characterized in that: the rear end of described wax removal valve is connected with eccentric spheroid, and the inwall of eccentric spheroid is threaded with the outer rim of wax removal valve; Cover has large pressure cap on the described eccentric spheroid, is provided with the bulb pressure ring between eccentric spheroid and the large pressure cap, and an end of large pressure cap is connected with lower contact, and lower contact is placed on the eccentric spheroid, and the inner chamber of eccentric spheroid is provided with nylon ball.
7. intelligent hydraulic formula wellhead sealing device according to claim 6 is characterized in that: the rear end cover of described lower contact has the trapping pipe, and the trapping pipe box is on polished rod.
8. intelligent hydraulic formula wellhead sealing device according to claim 7, it is characterized in that: be provided with O type circle II between described wax removal valve and the overcoat, be provided with O type circle III between adapter sleeve and the overcoat, be provided with two-layer O type circle IV between the inwall of eccentric spheroid and the outer rim of wax removal valve, be provided with O type circle V on eccentric spheroid and the lower contact contact surface.
9. intelligent hydraulic formula wellhead sealing device according to claim 8 is characterized in that: be provided with back-up ring between described pressure ring and the seal; The front end of described eccentric spheroid is provided with locking nut, the locking nut wax removal valve that is threaded.
10. intelligent hydraulic formula wellhead sealing device according to claim 9 is characterized in that: be provided with sealing mat I in the cavity that described upper press cover and adapter sleeve form; Be provided with sealing mat II in the cavity that described eccentric spheroid and wax removal valve form; Described sealing mat I, sealing mat II and O type circle all adopt rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103926826A CN103015938A (en) | 2012-09-28 | 2012-09-28 | Intelligent hydraulic wellhead sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103926826A CN103015938A (en) | 2012-09-28 | 2012-09-28 | Intelligent hydraulic wellhead sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103015938A true CN103015938A (en) | 2013-04-03 |
Family
ID=47964986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103926826A Pending CN103015938A (en) | 2012-09-28 | 2012-09-28 | Intelligent hydraulic wellhead sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103015938A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165600A (en) * | 2017-06-01 | 2017-09-15 | 克拉玛依市三达有限责任公司 | High-efficiency environment friendly well mouth of oil well sealing device |
| CN109025887A (en) * | 2018-09-17 | 2018-12-18 | 张强 | A kind of all-hydraulic intelligent well head integrating device |
| CN114320211A (en) * | 2020-10-09 | 2022-04-12 | 中国海洋石油集团有限公司 | Thermal recovery positioning insertion sealing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584281A (en) * | 2004-06-04 | 2005-02-23 | 罗观平 | Self-aligning polish rod sealer |
| CN200955368Y (en) * | 2006-09-05 | 2007-10-03 | 王文龙 | Polished rod sealer |
| CN201474653U (en) * | 2009-08-11 | 2010-05-19 | 李维学 | Oil well double ball-joint deflection regulating automatic blowout preventer |
| CN102305043A (en) * | 2011-08-23 | 2012-01-04 | 哈尔滨中融信科技开发有限公司 | Novel polish rod sealer |
| CN203097794U (en) * | 2012-09-28 | 2013-07-31 | 范增奎 | Intelligent hydraulic type wellhead sealer |
-
2012
- 2012-09-28 CN CN2012103926826A patent/CN103015938A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584281A (en) * | 2004-06-04 | 2005-02-23 | 罗观平 | Self-aligning polish rod sealer |
| CN200955368Y (en) * | 2006-09-05 | 2007-10-03 | 王文龙 | Polished rod sealer |
| CN201474653U (en) * | 2009-08-11 | 2010-05-19 | 李维学 | Oil well double ball-joint deflection regulating automatic blowout preventer |
| CN102305043A (en) * | 2011-08-23 | 2012-01-04 | 哈尔滨中融信科技开发有限公司 | Novel polish rod sealer |
| CN203097794U (en) * | 2012-09-28 | 2013-07-31 | 范增奎 | Intelligent hydraulic type wellhead sealer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165600A (en) * | 2017-06-01 | 2017-09-15 | 克拉玛依市三达有限责任公司 | High-efficiency environment friendly well mouth of oil well sealing device |
| CN107165600B (en) * | 2017-06-01 | 2018-04-17 | 克拉玛依市三达有限责任公司 | High-efficiency environment friendly well mouth of oil well sealing device |
| CN109025887A (en) * | 2018-09-17 | 2018-12-18 | 张强 | A kind of all-hydraulic intelligent well head integrating device |
| CN109025887B (en) * | 2018-09-17 | 2023-05-26 | 张强 | Full-hydraulic intelligent wellhead integrated device |
| CN114320211A (en) * | 2020-10-09 | 2022-04-12 | 中国海洋石油集团有限公司 | Thermal recovery positioning insertion sealing device |
| CN114320211B (en) * | 2020-10-09 | 2024-03-08 | 中国海洋石油集团有限公司 | Thermal recovery positioning insertion sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204403416U (en) | A kind of new type of sand prevention gate valve | |
| CN203097794U (en) | Intelligent hydraulic type wellhead sealer | |
| CN103015938A (en) | Intelligent hydraulic wellhead sealer | |
| CN202731817U (en) | Novel lubricating polish rod sealer | |
| CN206299532U (en) | A kind of new five cylinders slush pump | |
| CN206917636U (en) | A kind of precise piston formula wellhead chemicals-feeder | |
| CN2916113Y (en) | Polish rod sealing device for oil pumping well head | |
| CN201666245U (en) | Anti-fouling and sand-proof oil pump | |
| CN201184171Y (en) | Bias-wearing-proof pumping unit | |
| CN200985762Y (en) | Blowout prevention double stage polish rod sealer | |
| CN2825925Y (en) | Multifunctional blowout-preventing well mouth sealer | |
| CN202579126U (en) | Novel oil well pump | |
| CN105298787A (en) | Three-cylinder and single-action plunger pump | |
| CN210768705U (en) | Blowout prevention wellhead Christmas tree device | |
| CN204782899U (en) | Worm-linked oil pumping unit wellhead sealer | |
| CN2934559Y (en) | Anti-bias friction and anti-spray well port polished rod seal device | |
| CN202690411U (en) | High-pressure plunger pump for washing machine | |
| CN202520688U (en) | Rolling machine hydraulic oil cylinder capable of prolonging service life | |
| CN201280900Y (en) | Polished rod lubricator of pumping unit | |
| CN2871822Y (en) | Automatic offset three-level sealed blowout preventer of optical lever | |
| CN205298558U (en) | A wear -resisting rotary seal of self -lubricating for water fatlute pulp grinder | |
| CN205402022U (en) | Two media high pressure rotary joint | |
| CN205243753U (en) | Novel slush pump | |
| CN205297441U (en) | Screw seal device for oil pumping unit | |
| CN2675849Y (en) | Pumping well polish rod sealer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20160914 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |