CN104386835B - A kind of oil field well scale inhibitor and preparation method thereof - Google Patents
A kind of oil field well scale inhibitor and preparation method thereof Download PDFInfo
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- CN104386835B CN104386835B CN201410683233.6A CN201410683233A CN104386835B CN 104386835 B CN104386835 B CN 104386835B CN 201410683233 A CN201410683233 A CN 201410683233A CN 104386835 B CN104386835 B CN 104386835B
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- scale inhibitor
- phosphonic acid
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- field well
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- 239000002455 scale inhibitor Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims abstract description 19
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 19
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims abstract description 19
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical class OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims abstract description 19
- 229910052939 potassium sulfate Inorganic materials 0.000 claims abstract description 19
- 235000011151 potassium sulphates Nutrition 0.000 claims abstract description 19
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 19
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 19
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 19
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 19
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 19
- 229960004418 trolamine Drugs 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000013019 agitation Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 230000005764 inhibitory process Effects 0.000 description 8
- -1 25 parts Chemical compound 0.000 description 5
- 239000003129 oil well Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/105—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
- C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of oil field well scale inhibitor and preparation method thereof, make by following raw material weight number proportioning: sodium carbonate 35-60 part, silica 25-45 part, potassium sulfate 15-35 part, ethylenediamine tetramethylene phosphonic acid salt 12-30 part, Sodium hexametaphosphate 99 8-20 part, trolamine 6-18 part, ethylene glycol monobutyl ether 12-25 part, Amino Trimethylene Phosphonic Acid 15-30 part, industrial naphthas 8-25 part, water 35-65 part.Scale inhibitor of the present invention can be used for snaking and the antiscale of oil field well, easy to use, safe, lasting, is a kind of practicality, long-acting scale inhibitor.
Description
Technical field
The present invention relates to scale removal field, oil field, particularly relate to a kind of oil field well scale inhibitor and preparation method thereof.
Background technology
After oil-field development enters middle and high Water-cut Period, the water salinity in Produced Liquid is high.Oil well corrosion and scaling is serious.Conventional method adds corrosion inhibiting and descaling agent in oil well by the annular space of oil well oil conduit and sleeve pipe, can play the effect of antiscale, but scale inhibition efficiency is lower, only has about 85%.The requirement of oil well corrosion-mitigation scale-inhibition can not be met.
Summary of the invention
the technical problem solved:
In order to provide a kind of scale inhibition efficiency high, and being applicable to the scale inhibitor in oil-field development field, the invention provides a kind of oil field well scale inhibitor and preparation method thereof.
technical scheme:
A kind of oil field well scale inhibitor, makes by following raw material weight number proportioning: sodium carbonate 35-60 part, silica 25-45 part, potassium sulfate 15-35 part, ethylenediamine tetramethylene phosphonic acid salt 12-30 part, Sodium hexametaphosphate 99 8-20 part, trolamine 6-18 part, ethylene glycol monobutyl ether 12-25 part, Amino Trimethylene Phosphonic Acid 15-30 part, industrial naphthas 8-25 part, water 35-65 part.
As a preferred embodiment of the present invention, make by following raw material weight number proportioning: sodium carbonate 40-55 part, silica 30-40 part, potassium sulfate 20-30 part, ethylenediamine tetramethylene phosphonic acid salt 15-28 part, Sodium hexametaphosphate 99 9-18 part, trolamine 8-16 part, ethylene glycol monobutyl ether 14-22 part, Amino Trimethylene Phosphonic Acid 16-28 part, industrial naphthas 10-22 part, water 40-60 part.
A preparation method for oil field well scale inhibitor, comprises the following steps:
(1) weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, under 64-94 DEG C of air-proof condition, stir 32-68 minute;
(2) trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container, magnetic agitation mixes, and temperature of reaction is 44-68 DEG C;
(3) solution that step (2) obtains is put into header tank, reactor intensification 44-76 DEG C, start the solution dripped in header tank, within 3.2-5.6 hour, drip off, during dropping, temperature controls at 72-178 DEG C, dropping terminates rear 106-121 DEG C of insulation 1.6-2.7 hour, can obtain scale inhibitor after Temperature fall discharging.
As a preferred technical solution of the present invention, in step (1), weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, stir 66 minutes under 86 DEG C of air-proof conditions.
As a preferred technical solution of the present invention, trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container in (2) by step, and magnetic agitation mixes, and temperature of reaction is 64 DEG C.
As a preferred technical solution of the present invention, in step (3), the solution that step (2) obtains is put into header tank, reactor heats up 72 DEG C, start the solution dripped in header tank, within 5.4 hours, drip off, during dropping, temperature controls at 154 DEG C, drips and terminates rear 118 DEG C of insulations 2.3 hours, can obtain scale inhibitor after Temperature fall discharging.
beneficial effect
A kind of oil field well scale inhibitor of the present invention and preparation method thereof adopts above technical scheme to have following technique effect: the first, scale inhibition performance significantly improves; The second, scale inhibitor of the present invention is easy to use, safe, lasting.
Embodiment
Embodiment 1:
A kind of oil field well scale inhibitor, makes by following raw material weight number proportioning: 35 parts, sodium carbonate, 25 parts, silica, potassium sulfate 15 parts, ethylenediamine tetramethylene phosphonic acid salt 12 parts, Sodium hexametaphosphate 99 8 parts, trolamine 6 parts, ethylene glycol monobutyl ether 12 parts, Amino Trimethylene Phosphonic Acid 15 parts, industrial naphthas 8 parts, 35 parts, water.
A preparation method for oil field well scale inhibitor, comprises the following steps:
(1) weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, stir 32 minutes under 64 DEG C of air-proof conditions;
(2) trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container, magnetic agitation mixes, and temperature of reaction is 44 DEG C;
(3) solution that step (2) obtains is put into header tank, reactor heats up 44 DEG C, starts the solution dripped in header tank, within 3.2 hours, drip off, during dropping, temperature controls at 72 DEG C, drips and terminates rear 106 DEG C of insulations 1.6 hours, can obtain scale inhibitor after Temperature fall discharging.
The scale inhibition performance of the oil field well scale inhibitor that the program obtains is 95.7%.
Embodiment 2:
A kind of oil field well scale inhibitor, makes by following raw material weight number proportioning: 40 parts, sodium carbonate, 30 parts, silica, potassium sulfate 20 parts, ethylenediamine tetramethylene phosphonic acid salt 15 parts, Sodium hexametaphosphate 99 10 parts, trolamine 8 parts, ethylene glycol monobutyl ether 15 parts, Amino Trimethylene Phosphonic Acid 18 parts, industrial naphthas 10 parts, 40 parts, water.
A preparation method for oil field well scale inhibitor, comprises the following steps:
(1) weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, stir 36 minutes under 68 DEG C of air-proof conditions;
(2) trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container, magnetic agitation mixes, and temperature of reaction is 48 DEG C;
(3) solution that step (2) obtains is put into header tank, reactor heats up 49 DEG C, starts the solution dripped in header tank, within 3.8 hours, drip off, during dropping, temperature controls at 91 DEG C, drips and terminates rear 113 DEG C of insulations 1.9 hours, can obtain scale inhibitor after Temperature fall discharging.
The scale inhibition performance of the oil field well scale inhibitor that the program obtains is 97.3%.
Embodiment 3:
A kind of oil field well scale inhibitor, makes by following raw material weight number proportioning: 45 parts, sodium carbonate, 35 parts, silica, potassium sulfate 25 parts, ethylenediamine tetramethylene phosphonic acid salt 20 parts, Sodium hexametaphosphate 99 13 parts, trolamine 10 parts, ethylene glycol monobutyl ether 18 parts, Amino Trimethylene Phosphonic Acid 21 parts, industrial naphthas 13 parts, 45 parts, water.
A preparation method for oil field well scale inhibitor, comprises the following steps:
(1) weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, stir 41 minutes under 73 DEG C of air-proof conditions;
(2) trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container, magnetic agitation mixes, and temperature of reaction is 52 DEG C;
(3) solution that step (2) obtains is put into header tank, reactor heats up 53 DEG C, starts the solution dripped in header tank, within 4.2 hours, drip off, during dropping, temperature controls at 97 DEG C, drips and terminates rear 116 DEG C of insulations 2.1 hours, can obtain scale inhibitor after Temperature fall discharging.
The scale inhibition performance of the oil field well scale inhibitor that the program obtains is 98.2%.
Embodiment 4:
A kind of oil field well scale inhibitor, makes by following raw material weight number proportioning: 50 parts, sodium carbonate, 40 parts, silica, potassium sulfate 30 parts, ethylenediamine tetramethylene phosphonic acid salt 25 parts, Sodium hexametaphosphate 99 16 parts, trolamine 14 parts, ethylene glycol monobutyl ether 21 parts, Amino Trimethylene Phosphonic Acid 25 parts, industrial naphthas 18 parts, 50 parts, water.
A preparation method for oil field well scale inhibitor, comprises the following steps:
(1) weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, stir 50 minutes under 81 DEG C of air-proof conditions;
(2) trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container, magnetic agitation mixes, and temperature of reaction is 57 DEG C;
(3) solution that step (2) obtains is put into header tank, reactor heats up 64 DEG C, starts the solution dripped in header tank, within 4.8 hours, drip off, during dropping, temperature controls at 136 DEG C, drips and terminates rear 118 DEG C of insulations 2.3 hours, can obtain scale inhibitor after Temperature fall discharging.
The scale inhibition performance of the oil field well scale inhibitor that the program obtains is 98.6%.
Embodiment 5:
A kind of oil field well scale inhibitor, makes by following raw material weight number proportioning: 60 parts, sodium carbonate, 45 parts, silica, potassium sulfate 35 parts, ethylenediamine tetramethylene phosphonic acid salt 30 parts, Sodium hexametaphosphate 99 20 parts, trolamine 18 parts, ethylene glycol monobutyl ether 25 parts, Amino Trimethylene Phosphonic Acid 30 parts, industrial naphthas 25 parts, 65 parts, water.
A preparation method for oil field well scale inhibitor, comprises the following steps:
(1) weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, stir 68 minutes under 94 DEG C of air-proof conditions;
(2) trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container, magnetic agitation mixes, and temperature of reaction is 68 DEG C;
(3) solution that step (2) obtains is put into header tank, reactor heats up 76 DEG C, starts the solution dripped in header tank, within 5.6 hours, drip off, during dropping, temperature controls at 178 DEG C, drips and terminates rear 121 DEG C of insulations 2.7 hours, can obtain scale inhibitor after Temperature fall discharging.
The scale inhibition performance of the oil field well scale inhibitor that the program obtains is 99.7%.
Claims (6)
1. an oil field well scale inhibitor, it is characterized in that, make by following raw material weight number proportioning: sodium carbonate 35-60 part, silica 25-45 part, potassium sulfate 15-35 part, ethylenediamine tetramethylene phosphonic acid salt 12-30 part, Sodium hexametaphosphate 99 8-20 part, trolamine 6-18 part, ethylene glycol monobutyl ether 12-25 part, Amino Trimethylene Phosphonic Acid 15-30 part, industrial naphthas 8-25 part, water 35-65 part.
2. a kind of oil field well scale inhibitor according to claim 1, it is characterized in that, make by following raw material weight number proportioning: sodium carbonate 40-55 part, silica 30-40 part, potassium sulfate 20-30 part, ethylenediamine tetramethylene phosphonic acid salt 15-28 part, Sodium hexametaphosphate 99 9-18 part, trolamine 8-16 part, ethylene glycol monobutyl ether 14-22 part, Amino Trimethylene Phosphonic Acid 16-28 part, industrial naphthas 10-22 part, water 40-60 part.
3. the preparation method of a kind of oil field well scale inhibitor described in claim 1, is characterized in that, comprise the following steps:
(1) weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, under 64-94 DEG C of air-proof condition, stir 32-68 minute;
(2) trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container, magnetic agitation mixes, and temperature of reaction is 44-68 DEG C;
(3) solution that step (2) obtains is put into header tank, reactor intensification 44-76 DEG C, start the solution dripped in header tank, within 3.2-5.6 hour, drip off, during dropping, temperature controls at 72-178 DEG C, dropping terminates rear 106-121 DEG C of insulation 1.6-2.7 hour, can obtain scale inhibitor after Temperature fall discharging.
4. the preparation method of a kind of oil field well scale inhibitor according to claim 3, it is characterized in that, in step (1), weighing sodium carbonate, silica, potassium sulfate, ethylenediamine tetramethylene phosphonic acid salt, Sodium hexametaphosphate 99 and water are placed in reactor, stir 66 minutes under 86 DEG C of air-proof conditions.
5. the preparation method of a kind of oil field well scale inhibitor according to claim 3, it is characterized in that, trolamine, ethylene glycol monobutyl ether, Amino Trimethylene Phosphonic Acid and industrial naphthas are placed in container in (2) by step, and magnetic agitation mixes, and temperature of reaction is 64 DEG C.
6. the preparation method of a kind of oil field well scale inhibitor according to claim 3, it is characterized in that, in step (3), the solution that step (2) obtains is put into header tank, reactor heats up 72 DEG C, start the solution dripped in header tank, within 5.4 hours, drip off, during dropping, temperature controls at 154 DEG C, dropping terminates rear 118 DEG C of insulations 2.3 hours, can obtain scale inhibitor after Temperature fall discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683233.6A CN104386835B (en) | 2014-11-25 | 2014-11-25 | A kind of oil field well scale inhibitor and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683233.6A CN104386835B (en) | 2014-11-25 | 2014-11-25 | A kind of oil field well scale inhibitor and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104386835A CN104386835A (en) | 2015-03-04 |
| CN104386835B true CN104386835B (en) | 2016-02-24 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4144185A (en) * | 1978-02-24 | 1979-03-13 | The United States Of America As Represented By The Secretary Of The Interior | Method and composition for removing calcium sulfate scale deposits from surfaces |
| CN1546401A (en) * | 2003-12-10 | 2004-11-17 | 长春洁意实业有限责任公司 | Oilfield downhole solid anti-scaling agent and its production technology |
| CN101607767A (en) * | 2009-06-09 | 2009-12-23 | 新疆德蓝股份有限公司 | A kind of preparation that is used for the neutral composite scale inhibitor of oil field reinjection water |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9617179B2 (en) * | 2013-03-14 | 2017-04-11 | Massachusetts Institute Of Technology | Ion sequestration for scale prevention in high-recovery desalination systems |
-
2014
- 2014-11-25 CN CN201410683233.6A patent/CN104386835B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4144185A (en) * | 1978-02-24 | 1979-03-13 | The United States Of America As Represented By The Secretary Of The Interior | Method and composition for removing calcium sulfate scale deposits from surfaces |
| CN1546401A (en) * | 2003-12-10 | 2004-11-17 | 长春洁意实业有限责任公司 | Oilfield downhole solid anti-scaling agent and its production technology |
| CN101607767A (en) * | 2009-06-09 | 2009-12-23 | 新疆德蓝股份有限公司 | A kind of preparation that is used for the neutral composite scale inhibitor of oil field reinjection water |
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Effective date of registration: 20170306 Address after: 753000 the Ningxia Hui Autonomous Region, Dawukou District, Helan, North Hill Road, No., building, building, room No. 1501, room 27 Patentee after: Ningxia hundred Chen Industrial Product Design Co., Ltd. Address before: 312500 Zhejiang County of Xinchang province habayashi Street Qing Quan Village No. 215 Patentee before: XINCHANG COUNTY YULIN STREET YUQUAN MACHINERY FACTORY |
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Inventor after: Ma Hongwei Inventor before: Xia Wujun Inventor before: Ling Yun Inventor before: Lu Saijun Inventor before: Jin Kexin Inventor before: Chen Liang Inventor before: Cheng Sheng Inventor before: Ling Tianyang Inventor before: Lu Ding |
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Effective date of registration: 20171204 Address after: 163000 Heilongjiang Province, Daqing City Ranghulu District Silver million Sunshine City No. E-15 business services 8 Patentee after: Daqing Ji Yilai Technology Co. Ltd. Address before: 753000 the Ningxia Hui Autonomous Region, Dawukou District, Helan, North Hill Road, No., building, building, room No. 1501, room 27 Patentee before: Ningxia hundred Chen Industrial Product Design Co., Ltd. |