CN106917597A - Oil-field oil pumper packing box - Google Patents
Oil-field oil pumper packing box Download PDFInfo
- Publication number
- CN106917597A CN106917597A CN201710310066.4A CN201710310066A CN106917597A CN 106917597 A CN106917597 A CN 106917597A CN 201710310066 A CN201710310066 A CN 201710310066A CN 106917597 A CN106917597 A CN 106917597A
- Authority
- CN
- China
- Prior art keywords
- rubber
- housing
- joint
- oil
- packing
- 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
- 238000012856 packing Methods 0.000 title claims abstract description 60
- 239000003921 oil Substances 0.000 claims abstract description 29
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims abstract description 9
- 239000010721 machine oil Substances 0.000 claims description 4
- 239000010779 crude oil Substances 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 208000035874 Excoriation Diseases 0.000 description 3
- 235000014121 butter Nutrition 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of oil-field oil pumper packing box, belong to petroleum machinery oil pumper equipment technical field, oil extractor packing box its structure is：Upper end of joint is eccentric structure, and joint screw thread well head of the connection with crude oil, upper end of joint outer rim inboard is provided with rubber blanket groove, and rubber cushion groove is interior to be equipped with rubber cushion；Housing lower end is provided with the eccentric tongue being engaged with rubber cushion groove, and gland inner side is provided with the internal thread supporting with housing external screw thread, and gland outside is provided with handwheel, and housing lower end is fastenedly connected with joint by the bolt of circle clamp；Upper end of joint in housing is equipped with lower rubber ring, and lower rubber ring upper end is equipped with the blowing pressure cushion rubber, and pressure cushion rubber one end is provided with check valve；Pressure cushion rubber inner side sucker rod outside is equipped with packing, and pressure cushion rubber and packing upper end are equipped with upper rubber ring, and upper rubber ring upper end is equipped with lower spring cup, and lower spring cup upper end is equipped with spring, and spring upper end is equipped with upper spring seat, and the internal thread of gland screws in the external screw thread of housing.
Description
Technical field
The present invention relates to a kind of oil-field oil pumper packing box, belong to petroleum machinery oil pumper equipment technical field.
Background technology
Pumping unit well mouth polish rod sealed packing box is the important component for being connected rod-pumped well lower tubular column and oil pumper, is oil pumping
Motor-pumped well production management and the key point of system power consumption.Xian Ge oil extraction in oil field factory's oil extractor packing box in prolonged oil pumping production and
Oil is run in wear process, at sealed packing to become increasingly conspicuous, and mostly spurting, run oily pollution environment.Thus the problem for triggering is very
More such as：Petroleum resources is wasted, is increased and is changed the maintenance cost of packing, causes producing region large area crude oil pollution, the person of increased
Work recovers the working strength of environment, and recovery process is complicated, loses time, influences oil well output.
Existing rod-pumped well packing box generally uses the packing box of primary seal packing, mainly manually adjusts formula
Packing box, its structure member is made up of gland, housing, piston, rubber packing and packing supporting plate.
Oil pumping machine well head sealing is, by rotatable handle gland, to promote descent of piston, extrudes rubber packing, makes rubber packing
There is certain deformation, inner hole is brought into close contact and keeps certain pressure with polished rod, and then the sealing to well head is realized together with polished rod.
Wellhead packing box runs oily main cause：
There is burn into excoriation in polished rod：In order to prevent oil leak, workman will extrude rubber packing with very big strength,
Rubber packing increases with the pressure of polished rod, frictional force increase, polished rod lubricant effect is deteriorated, and polished rod surface temperature is raised, polished rod
When descending, crude oil is cooled down to polished rod again, and polished rod surface carries out the process of heating and cooling repeatedly like this.While polished rod
Surface is extruded repeatedly, reduces the fatigue strength on polished rod surface, polished rod epidermis is cracked, comes off, corroded, with the corruption of polished rod
Erosion, excoriation aggravation, polished rod surface are no longer smooth, and coarse polished rod weares and teares to packing, isolates, and well head packing at this moment is easy
Oil is run in generation.
Light rod bending：Some polished rods can occur certain bending in the middle of the course of work, and the polished rod of bending rises in oil pumper
When taking out, to packing well damage.
Polished rod thickness is uneven：There is abrasion and occur that oval, thickness is uneven in polished rod, or in one section of thick one section thin wave feelings
Condition, the sealing of such packing can be deteriorated, and well head occurs and runs oil.
Polished rod is misaligned with packing box：It refers to that the axis of polished rod is not weighed with packing box axis that polished rod is misaligned with packing box
Close, misalign it is extremely serious to the damage of rubber packing, if misalign it is serious if, rubber packing can grind away to one side quickly
And sealing is lost, there is well head and run oil.
Polished rod is rocked：Polished rod does not move along a straight line when pumping, but shakes, and the destruction to packing is non-
Chang Yanchong.
The content of the invention
In order to overcome above-mentioned technical deficiency, the present invention to provide a kind of novel oil pumping machine of oil field packing box, the packing box
Core component be the blowing pressure cushion rubber, it can effectively solve the problem that packing box compression, lubrication, tuningout, profiling, rocks what is followed etc.
Technical barrier.
This practicality invention solves the technical scheme that is used of its technical problem：Oil extractor packing box its structure is：Joint
Upper end is eccentric structure, and joint screw thread connection carries the well head of crude oil, and upper end of joint outer rim inboard is provided with rubber blanket groove, rubber cushion groove
It is interior equipped with rubber cushion；Housing lower end is provided with the eccentric tongue being engaged with rubber cushion groove, and housing upper end is provided with external screw thread, and gland inner side sets
There is the internal thread supporting with housing external screw thread, gland outside is provided with handwheel, and housing lower end is tight with the bolt that joint passes through circle clamp
It is solidly connected；Upper end of joint in housing is equipped with lower rubber ring, and lower rubber ring upper end is equipped with the blowing pressure cushion rubber, the blowing pressure cushion rubber
It is annulus body, pressure cushion rubber one end is provided with check valve, pressure cushion rubber filled with gas；Pressure cushion rubber inner side sucker rod outside peace
There is packing, pressure cushion rubber and packing upper end are equipped with upper rubber ring, and upper rubber ring upper end is equipped with lower spring cup, lower spring cup upper end peace
There is spring, machine oil is filled around spring and sucker rod, spring upper end is equipped with upper spring seat, and the internal thread of gland screws in the outer of housing
Screw thread, by adjusting progressively holddown spring.
The beneficial effects of the invention are as follows：Rotation housing, by the adjustment of housing and the eccentric structure of joint, enables packing box
It is enough ensure and light-rod coaxial, it is to avoid the undue eccentric wear of polished rod.Polished rod is in motion process, it may appear that certain bias, due to rubber
Glue pressure coil the inside is filled with the gas of flowable, makes packing follow polished rod eccentric together, realizes bias without eccentric wear
Effect.If polished rod has certain bending, due to the corrective action of rubber pressure circle the inside gas, packing also can be with polished rod
Bend and bend, prevent excessive wear.Rocked for polished rod, also because the corrective action of rubber pressure circle the inside gas, packing
Rocked also with rocking for polished rod, it is to avoid excessive wear., thickness oval for polished rod is uneven, or one section of thick one section of thin feelings
Condition, because rubber pressure circle the inside is that, with certain pressure, compressible, flowable gas, hole can be cut with polished rod in packing
The change in face and change, while the blowing pressure cushion rubber gas pressure makes the packing moment be fitted with polished rod, and in all directions to light
Bar keeps identical pressure, it is therefore prevented that the leakage of oil gas.For high-pressure well, the oil gas inside well casing produces upward to lower rubber ring
Pressure, compressive charge pressure cushion rubber increases the blowing pressure cushion rubber the inside pressure, and compression packing is close to polished rod, prevents leakage.It is yellow
Oil reduces friction, reduces bare rod corrosion.Pressure cushion rubber outside be filled with butter, in the course of work, due to polished rod to packing not
The extruding of interruption, is promoted, and gradually butter can be promoted at packing, and butter is lubricated through packing to polished rod, polished rod table
There is one layer of oil film in face all the time, reduces friction, reduces corrosion, extends the service life of polished rod.The thrust of packing and polished rod
Reduce, reduce frictional force, reduce energy consumption.
Brief description of the drawings
Fig. 1 is oil-field oil pumper packing box structural representation of the present invention.
Fig. 2 is the A-A sectional views of Fig. 1 of the present invention.
1, sucker rod in figure, 2, gland, 3, upper spring seat, 4, housing, 5, machine oil, 6, spring, 7, lower spring cup, 8, upper rubber
Cushion rubber, 9, packing, 10, the blowing pressure cushion rubber, 11, lower rubber ring, 12, rubber cushion, 13, joint, 14, crude oil, 15, fluid, 16, single
To valve, 17, circle clamp.
Specific embodiment
The present invention is further described with implementation method below in conjunction with the accompanying drawings
As Figure 1-Figure 2, its structure of oil extractor packing box is：The upper end of joint 13 is eccentrical shape, and the screw thread of joint 13 connects
Tape splicing has the well head of crude oil 14, and the upper end outer rim inboard of joint 13 is provided with and rubber cushion 12 is equipped with rubber cushion groove, rubber cushion groove；The lower end of housing 4
The tongue being engaged with rubber cushion groove is provided with, the upper end of housing 4 is provided with external screw thread, and the inner side of gland 2 is provided with supporting with housing external screw thread
Internal thread, the outside of gland 2 is provided with handwheel, and the lower end of housing 4 is fastenedly connected with joint 13 by the bolt of circle clamp 17；In housing 4
The upper end of joint 13 be equipped with lower rubber ring 11, the lower upper end of rubber ring 11 be equipped with the blowing pressure cushion rubber 10, pressure cushion rubber 10 be annulus
Body, one end of pressure cushion rubber 10 is provided with check valve 16, fluid-filled 15 in pressure cushion rubber 10；The inner side sucker rod 1 of pressure cushion rubber 10
Outside is equipped with packing 9, and pressure cushion rubber 10 and the upper end of packing 9 are equipped with upper rubber ring 8, and the upper end of upper rubber ring 8 is equipped with lower spring cup 7,
The upper end of lower spring cup 7 is equipped with spring 6, and machine oil 5 is filled around spring 6 and sucker rod 1, and the upper end of spring 6 is equipped with upper spring seat 3, pressure
The internal thread of lid 2 screws in the external screw thread of housing 4, by adjusting progressively holddown spring.
Can be inflated in pressure cushion rubber 10 by check valve, it is ensured that the gas pressure intensity of the inside is 5kg.Due to the mill of packing
Damage, gas expansion, cause packing to reduce with the pressure of polished rod, sealing effectiveness reduction.At this moment the spring above packing will extend,
Promote rubber ring descending, compressed gas, pressure is improved, and remains the sealing to well head.
When gas pressure is too reduced, oil well is nursed work inflator and rubber pressure circle is inflated, and inflator carries pressure
Table, make the inside gas reach 5kg just can be with.
Claims (1)
1. a kind of oil extractor packing box, it is characterized in that：Joint (13) upper end is eccentrical shape, and joint (13) threaded connection is with original
The well head of oily (14), joint (13) upper end outer rim inboard is provided with and rubber cushion (12) is equipped with rubber cushion groove, rubber cushion groove；Housing (4) lower end
The tongue being engaged with rubber cushion groove is provided with, housing (4) upper end is provided with external screw thread, and gland (2) inner side is provided with matches somebody with somebody with housing external screw thread
The internal thread of set, gland (2) outside is provided with handwheel, and housing (4) lower end is fastened with joint (13) by the bolt of circle clamp (17)
Connection；Joint (13) upper end in housing (4) is equipped with lower rubber ring (11), and lower rubber ring (11) upper end is equipped with the blowing pressure cushion rubber
(10), pressure cushion rubber (10) is annulus body, and pressure cushion rubber (10) one end is provided with check valve (16), pressure cushion rubber 10 filled with stream
Body (15)；Pressure cushion rubber (10) inner side sucker rod (1) outside is equipped with packing (9), and pressure cushion rubber (10) and packing (9) upper end are equipped with
Upper rubber ring (8), upper rubber ring (8) upper end is equipped with lower spring cup (7), and lower spring cup (7) upper end is equipped with spring (6), spring (6)
Machine oil (5) is filled with sucker rod (1) surrounding, spring (6) upper end is equipped with upper spring seat (3), and the internal thread of gland (2) screws in housing
(4) external screw thread, by adjusting progressively holddown spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310066.4A CN106917597A (en) | 2017-04-30 | 2017-04-30 | Oil-field oil pumper packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310066.4A CN106917597A (en) | 2017-04-30 | 2017-04-30 | Oil-field oil pumper packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106917597A true CN106917597A (en) | 2017-07-04 |
Family
ID=59568400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710310066.4A Pending CN106917597A (en) | 2017-04-30 | 2017-04-30 | Oil-field oil pumper packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106917597A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150126A (en) * | 2018-02-26 | 2018-06-12 | 席建桢 | A kind of automatic adjustment packing box for preventing eccentric wear and oil leak |
| CN109441392A (en) * | 2018-12-13 | 2019-03-08 | 胡治法 | A kind of oil pumping machine well head packing box |
| CN111963096A (en) * | 2020-08-31 | 2020-11-20 | 张利东 | Oil field pumping unit import sealing device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB326615A (en) * | 1929-01-25 | 1930-03-20 | William Arthur Trout | Improvements in or relating to well drilling |
| CN2045420U (en) * | 1988-12-08 | 1989-10-04 | 辽河石油勘探局茨榆坨采油厂 | Offset-adjusting device for pumping unit portal |
| CN2056692U (en) * | 1989-04-15 | 1990-05-02 | 李晓军 | Self adjustable anti-spurting box of oil pump well smooth roll |
| CN2070858U (en) * | 1990-08-28 | 1991-02-06 | 华北石油管理局第二勘探公司 | Reinforced rubber-pipe-clip |
| CN2228972Y (en) * | 1995-03-01 | 1996-06-12 | 周伟汉 | Stuffing box for oil field well head |
| CN2243529Y (en) * | 1995-02-26 | 1996-12-25 | 隆凯成 | Anti-stealing packing box |
| CN2278101Y (en) * | 1996-10-14 | 1998-04-08 | 中国石油天然气总公司石油勘探开发科学研究院廊坊分院 | Oil pump self-closing type polished-rod sealing and wellhead eccentricity adjusting device |
| CN1191264A (en) * | 1998-04-06 | 1998-08-26 | 甄立新 | Stuffing box with air bag |
| CN2500793Y (en) * | 2001-08-20 | 2002-07-17 | 石油大学(华东) | Follow-type centralising pumping polish rod well head sealer |
| CN2893341Y (en) * | 2006-04-26 | 2007-04-25 | 东营市科力石油机械有限责任公司 | Antiflushing water injection regulating valve |
| CN2937459Y (en) * | 2006-08-03 | 2007-08-22 | 高忠平 | Double-offset polish rod sealer for pumping well |
| CN201795212U (en) * | 2010-06-09 | 2011-04-13 | 谭洪艳 | Inner fastened pipe clamp combination |
| CN102787819A (en) * | 2012-07-16 | 2012-11-21 | 甄国卿 | Tire type puncture-proof eccentric packing box |
| CN202900128U (en) * | 2012-10-23 | 2013-04-24 | 中国石油天然气股份有限公司 | Oil pumping polish rod deviation adjusting packing box |
| CN203547634U (en) * | 2013-10-09 | 2014-04-16 | 赵立凯 | Follow-up sealing device of polished rod |
| CN204113179U (en) * | 2014-08-22 | 2015-01-21 | 贾广生 | Rod-pumped well multifunctional power saving gland |
| CN206830112U (en) * | 2017-04-30 | 2018-01-02 | 张坚 | Oil-field oil pumper packing box |
-
2017
- 2017-04-30 CN CN201710310066.4A patent/CN106917597A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB326615A (en) * | 1929-01-25 | 1930-03-20 | William Arthur Trout | Improvements in or relating to well drilling |
| CN2045420U (en) * | 1988-12-08 | 1989-10-04 | 辽河石油勘探局茨榆坨采油厂 | Offset-adjusting device for pumping unit portal |
| CN2056692U (en) * | 1989-04-15 | 1990-05-02 | 李晓军 | Self adjustable anti-spurting box of oil pump well smooth roll |
| CN2070858U (en) * | 1990-08-28 | 1991-02-06 | 华北石油管理局第二勘探公司 | Reinforced rubber-pipe-clip |
| CN2243529Y (en) * | 1995-02-26 | 1996-12-25 | 隆凯成 | Anti-stealing packing box |
| CN2228972Y (en) * | 1995-03-01 | 1996-06-12 | 周伟汉 | Stuffing box for oil field well head |
| CN2278101Y (en) * | 1996-10-14 | 1998-04-08 | 中国石油天然气总公司石油勘探开发科学研究院廊坊分院 | Oil pump self-closing type polished-rod sealing and wellhead eccentricity adjusting device |
| CN1191264A (en) * | 1998-04-06 | 1998-08-26 | 甄立新 | Stuffing box with air bag |
| CN2500793Y (en) * | 2001-08-20 | 2002-07-17 | 石油大学(华东) | Follow-type centralising pumping polish rod well head sealer |
| CN2893341Y (en) * | 2006-04-26 | 2007-04-25 | 东营市科力石油机械有限责任公司 | Antiflushing water injection regulating valve |
| CN2937459Y (en) * | 2006-08-03 | 2007-08-22 | 高忠平 | Double-offset polish rod sealer for pumping well |
| CN201795212U (en) * | 2010-06-09 | 2011-04-13 | 谭洪艳 | Inner fastened pipe clamp combination |
| CN102787819A (en) * | 2012-07-16 | 2012-11-21 | 甄国卿 | Tire type puncture-proof eccentric packing box |
| CN202900128U (en) * | 2012-10-23 | 2013-04-24 | 中国石油天然气股份有限公司 | Oil pumping polish rod deviation adjusting packing box |
| CN203547634U (en) * | 2013-10-09 | 2014-04-16 | 赵立凯 | Follow-up sealing device of polished rod |
| CN204113179U (en) * | 2014-08-22 | 2015-01-21 | 贾广生 | Rod-pumped well multifunctional power saving gland |
| CN206830112U (en) * | 2017-04-30 | 2018-01-02 | 张坚 | Oil-field oil pumper packing box |
Non-Patent Citations (1)
| Title |
|---|
| 于长华;张少锋;张成志;: "电加热空心杆及配套装置", 石油科技论坛 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150126A (en) * | 2018-02-26 | 2018-06-12 | 席建桢 | A kind of automatic adjustment packing box for preventing eccentric wear and oil leak |
| CN109441392A (en) * | 2018-12-13 | 2019-03-08 | 胡治法 | A kind of oil pumping machine well head packing box |
| CN109441392B (en) * | 2018-12-13 | 2020-10-16 | 东营利达石油工程技术服务有限公司 | Packing box for wellhead of oil pumping unit |
| CN111963096A (en) * | 2020-08-31 | 2020-11-20 | 张利东 | Oil field pumping unit import sealing device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200724 Address after: 161000 Heilongjiang Qiqihar railway engineering school, No.34 gongxiao street, Tiefeng District, Qiqihar City, Heilongjiang Province Applicant after: Qiqihar peace Technology Co.,Ltd. Address before: 161000, room 2, building 55, building 291, lakeside road, West Bridge Street, Jianhua bridge, Jianhua District, Heilongjiang, Qigihar Applicant before: Zhang Jian |
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Effective date of registration: 20200820 Address after: 161000, room 2, building 55, building 291, lakeside road, West Bridge Street, Jianhua bridge, Jianhua District, Heilongjiang, Qigihar Applicant after: Zhang Jian Address before: 161000 Heilongjiang Qiqihar railway engineering school, No.34 gongxiao street, Tiefeng District, Qiqihar City, Heilongjiang Province Applicant before: Qiqihar peace Technology Co.,Ltd. |
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Effective date of registration: 20210125 Address after: 161000 Room 301, unit 4, building 40, East Zhonghua Road community, Jianhua District, Qiqihar City, Heilongjiang Province Applicant after: Cui Yongjin Address before: 161000 room 291, unit 2, building 55, Hupan home, sightseeing Road, xidaqiao street, Jianhua District, Qiqihar City, Heilongjiang Province Applicant before: Zhang Jian |
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Effective date of registration: 20211216 Address after: 161000 room 291, unit 2, building 55, Hupan home, sightseeing Road, xidaqiao street, Jianhua District, Qiqihar City, Heilongjiang Province Applicant after: Zhang Jian Address before: 161000 Room 301, unit 4, building 40, East Zhonghua Road community, Jianhua District, Qiqihar City, Heilongjiang Province Applicant before: Cui Yongjin |
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Application publication date: 20170704 |
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