CN201644437U - Ultrasonic cleaning device used for contaminated sand of oilfields - Google Patents
Ultrasonic cleaning device used for contaminated sand of oilfields Download PDFInfo
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- CN201644437U CN201644437U CN2010201481241U CN201020148124U CN201644437U CN 201644437 U CN201644437 U CN 201644437U CN 2010201481241 U CN2010201481241 U CN 2010201481241U CN 201020148124 U CN201020148124 U CN 201020148124U CN 201644437 U CN201644437 U CN 201644437U
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- 238000004506 ultrasonic cleaning Methods 0.000 title claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 59
- 230000008569 process Effects 0.000 claims description 51
- 239000002245 particle Substances 0.000 claims description 45
- 238000002156 mixing Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 67
- 235000019198 oils Nutrition 0.000 description 67
- 239000004576 sand Substances 0.000 description 21
- 238000012545 processing Methods 0.000 description 12
- 239000010802 sludge Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000010923 batch production Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an ultrasonic cleaning device used for contaminated sand of oilfields, which comprises a treatment tank, an ultrasonic system, a stirring portion, a heater, an additive feeder and a contaminated sand liquid-level sensor. The ultrasonic system, the stirring portion, the heater and the contaminated sand liquid-level sensor are connected with the treatment tank, wherein the ultrasonic system consists of an ultrasonic vibrating plate, an ultrasonic power source and an ultrasonic controller, and the ultrasonic vibrating is respectively electrically connected with the ultrasonic power source and the ultrasonic controller. The ultrasonic cleaning device has the advantages of simple equipment, convenient operation, stable treatment effect, thorough contaminated sand treatment and the like, can realize non-polluted management of the contaminated sand of oilfields, not only can be used for dredging treatment of dewatering tanks, oil storage tanks and slop tanks in production of oilfields, but also can be used for large-scale treatment for the stacked contaminated sand.
Description
Technical field
The utility model relates to a kind for the treatment of apparatus that is used for the oil field oil-containing silt particle, especially for the ultrasonic cleaning equipment of oil field oil-containing silt particle, is applicable to the formation oil silt particle that produces in all oilfield processes and the harmless treatment of ground crude oil contaminated soil.
Background technology
Produce a large amount of oil sludge and sand after clearing up basic sediments such as oil tank, drain sump, slop tank in the oilfield process, the complicated component of oil field oil-containing silt particle, be oil, mud, sand, the heterogeneous admixture of water, belong to solid waste, how oil sludge and sand is handled and accomplished that innoxious discharging is one of difficult problem of facing of many oil fields.
In the prior art, only disclose general ultrasonic cleaning device, and openly be not specially adapted for the cleaning technique of oil-containing mud sand.Disclosed a kind of ultrasonic cleaning equipment in Chinese patent application the 94241529.9th for example, it contains the draw bail of washing bucket, rotating shaft and transferring rotational motion and moment of torsion, ultrasonic radiator is contained in side at washing bucket, in washing bucket, contain goods basket, contain mesh in the goods basket side, it is characterized in that: a sector hole is arranged at the goods basket bottom, rotating shaft runs through the bottom of washing bucket, be inserted in the hole of goods basket, form matched in clearance with the hole, the draw bail of transferring rotational motion and moment of torsion is between rotating shaft and goods basket.
Along with oil field development continues, the domestic and international at present processing to the oil field oil-containing silt particle has isolation method, coagulating treatment method, centrifugal separation, coking facture, drying and incinerating method, chemical oxidization method, biological restoration method etc. usually.The innoxious process for treating of domestic oil-containing mud sand also is in conceptual phase, does not form ripe treatment process as yet; Abroad the processing to oil-containing mud sand mainly is to adopt to pave the way, burn, and contaminated soil is carried out biological restoration.And these are not that environment is caused very big pollution, and the cost that is exactly processing is high.
In order to adapt to the needs of modernized oil field development, the field produces scene needs a kind of quick treatment device that can effectively handle oil-containing mud sand, cooperates bioremediation, makes the oil field oil-containing silt particle meet the innoxious discharge standard requirement of national regulation after the processing.
The utility model content
In order to solve the aforementioned problems in the prior, the utility model proposes a kind of ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle, use this ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle, can realize the harmless treatment of oil field oil-containing silt particle.Reduce and pollute, reduce production costs, the protection environment.
According to the technical solution of the utility model, a kind of ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle, this device comprises process tank 1, ultrasonic system, mixing part, heater 7, doser 8, silt particle liquid level sensor 9, wherein ultrasonic system, mixing part, heater 7, doser 8, silt particle liquid level sensor 9 is connected with process tank 1; Described in addition ultrasonic system is made up of ultrasonic wave vibration plate 2, ultrasonic power 3 and ultrasonic controller 4, and ultrasonic wave vibration plate 2 is electrically connected with ultrasonic power 3 and ultrasonic controller 4 respectively.
Preferably, process tank 1 is provided with top cover, is provided with into silt particle mouth 10, water inlet 11, dosing mouth on top cover, and is provided with spoil disposal sandpipe 15 at the bottom of the tank body of process tank; Process tank 1 sidewall is provided with motor-driven valve 12 and discharging tube 14.
Preferably, ultrasonic wave vibration plate 2 is installed on the process tank internal side wall, and the chromium plating of ultrasonic wave vibration plate outer surface is handled, chromium coating thickness 〉=50 μ m.
Preferably, the output frequency and the power of ultrasonic controller 4 control ultrasonic wave vibration plates 2.
Additionally, the mixing part is made up of agitator 5 and frequency converter 6, agitator comprises motor, shaft, stirring vane and shaft coupling, motor places on the top cover of process tank 1, stirring vane is installed on the shaft, place in the process tank 1, shaft coupling peripheral hardware sealing and pass through from the tank body top cover is fixed on the top cover of process tank 1 by stirring support.
Preferably, 2 groups of stirring vanes are installed at least on the shaft, stirring vane is leafy formula hinged joint turbine, and the installation site on shaft is adjustable.
More preferably, the silt particle liquid level sensor 9 of process tank 1 internal side wall is connected 12 with motor-driven valve, according to the open and close of controlling motor-driven valve 12 from the signal of silt particle liquid level sensor 9.
Preferably, heater 7 comprise temp controlled meter, thermocouple, with heating rod and jet chimney that temp controlled meter is connected with thermocouple, heating rod gos deep in the process tank 1.Temp controlled meter and thermocouple place on the top cover of process tank 1.
In addition, the bottom tank body of process tank 1 is sphere or taper, is installed on the fixed support 13.
Use the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle described in the technical solutions of the utility model to handle the oil field oil-containing mud sand, production cost is low, handles in time, and the protection environment pollutes few.This device has advantages such as equipment is simple, easy to operate, treatment effect stable, the oil sludge and sand processing is thorough.Can realize the innoxious governance of oil field mud and sand, can handle at the desilting of drain sump, oil tank, slop tank in the field produces, again can be at the extensive processing of the long-term oil sludge and sand of stacking in oil field.Originally the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle adopts modularized design, can assemble and form the vehicle-mounted removable treating apparatus, also can build into large-scale batch production processing mode according to this tupe.
Description of drawings
Fig. 1 is the structural representation that is used for the ultrasonic cleaning equipment of oil field oil-containing silt particle of the present utility model.
The specific embodiment
Utilize Vltrasonic device that oil sludge and sand is carried out the direction that cleaning technique is domestic and international developmental research, ultrasonicly be able to extensive use aspect equipment cleaning, clasmatosis, the greasy filth cleaning as a kind of novel process technology.Mainly utilize its cavitation effect aspect water treatment, the ultrasonic cavitation effect is meant that there is the vibration of the cavitation nucleus in the water body in ultrasonic initiation, and bubble expands rapidly when pressure acquires a certain degree, a series of dynamic processes such as unexpected then closure, collapse.When ultrasonic wave is propagated, not only have cavitation in liquid medium, but also mechanical agitation and fuel factor are arranged.Ultrasonic wave energy provides the special physicochemical environment to the thermal response of oil product in oil-sand separates, and plays special effect.Because a series of high pressure of generation, high temperature and the photoelectric effect of epipole must be quickened the carrying out of chemistry in the cavitation processes.
According to above-mentioned know-why, the inventor proposes a kind of ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle through repeatedly testing and designing.
With reference to Fig. 1, the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle of the present utility model is described, this device comprises process tank 1, ultrasonic system, mixing part, heater 7, doser 8, silt particle liquid level sensor 9, wherein ultrasonic system, mixing part, heater 7, doser 8, silt particle liquid level sensor 9 is connected with process tank 1; Described in addition ultrasonic system is made up of ultrasonic wave vibration plate 2, ultrasonic power 3 and ultrasonic controller 4, and ultrasonic wave vibration plate 2 is electrically connected with ultrasonic power 3 and ultrasonic controller 4 respectively.
Wherein, process tank 1 is provided with top cover, is provided with into silt particle mouth 10, water inlet 11, dosing mouth on top cover, and is provided with spoil disposal sandpipe 15 at the bottom of the tank body of process tank; Process tank 1 sidewall is provided with motor-driven valve 12 and discharging tube 14.Ultrasonic wave vibration plate 2 is installed on the process tank internal side wall, and the chromium plating of ultrasonic wave vibration plate outer surface is handled, chromium coating thickness 〉=50 μ m.The output frequency and the power of ultrasonic controller 4 control ultrasonic wave vibration plates 2.
Additionally, the mixing part is made up of agitator 5 and frequency converter 6, agitator comprises motor, shaft, stirring vane and shaft coupling, motor places on the top cover of process tank 1, stirring vane is installed on the shaft, place in the process tank 1, shaft coupling peripheral hardware sealing and pass through from the tank body top cover is fixed on the top cover of process tank 1 by stirring support.2 groups of stirring vanes are installed on the shaft at least, and stirring vane is leafy formula hinged joint turbine, and the installation site on shaft is adjustable.
Further, the silt particle liquid level sensor 9 of process tank 1 internal side wall is connected 12 with motor-driven valve, according to the open and close of controlling motor-driven valve 12 from the signal of silt particle liquid level sensor 9.Heater 7 comprise temp controlled meter, thermocouple, with heating rod and jet chimney that temp controlled meter is connected with thermocouple, heating rod gos deep in the process tank 1.Temp controlled meter and thermocouple place on the top cover of process tank 1.
In addition, the bottom tank body of process tank 1 is sphere or taper, is installed on the fixed support 13.
Further, ultrasonic controller 4 can be selected 1～2 grade of frequency for use, i.e. low frequency (25khz) or low frequency+high frequency (30khz+50khz).Heating can be selected electrical heating or Steam Heating.
Use the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle described in the technical solutions of the utility model to handle the oil field oil-containing mud sand, production cost is low, handles in time, and the protection environment pollutes few.This device has advantages such as equipment is simple, easy to operate, treatment effect stable, the oil sludge and sand processing is thorough.Can realize the innoxious governance of oil field mud and sand, can handle at the desilting of drain sump, oil tank, slop tank in the field produces, again can be at the extensive processing of the long-term oil sludge and sand of stacking in oil field.Originally the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle adopts modularized design, can assemble and form the vehicle-mounted removable treating apparatus, also can build into large-scale batch production processing mode according to this tupe.
Be described below in further detail: process tank 1 is the reaction carriers that ultrasonic cleaning equipment is handled oil-containing mud sand, and the material of tank body is stainless steel, cylinder, also can be other shape.The mixing part is made up of agitator and frequency converter 6, and frequency converter 6 connects with agitator, realizes different stir speed (S.S.)s.Agitator comprises motor, shaft coupling, shaft and stirring vane, and stirring vane is installed on the shaft, places in the process tank 1; The sealing of shaft coupling peripheral hardware is passed through from the tank body top cover, is fixed on the top cover of process tank 1 by stirring support.2 groups of stirring vanes are installed on the shaft at least, and stirring vane is leafy formula hinged joint turbine, and the installation site on shaft is adjustable.The mixing part is used for the suspension of oil-containing mud sand and flows, and realizes ultrasonic abundant contact to oil-containing mud sand in the ultrasonic cleaning processing procedure.
During the in-situ processing oil-containing mud sand, oil-containing mud sand is joined in the process tank 1 by advancing silt particle mouth 10, add water by water inlet 11 and mix.Open agitator 5,, after adding medicament simultaneously and the mixture in the process tank being heated to uniform temperature, open ultrasonic power 3 and ultrasonic controller 4 by heating system with frequency converter 6 control stir speed (S.S.)s.Silt particle is discharged by spoil disposal sandpipe 15 after finishing wash-out, and motor-driven valve 12 and discharging tube 14 that oil water mixture is controlled by silt particle liquid level sensor 9 are discharged.
As above-mentioned, the clear device that the utility model proposes that described in detail reaches the technique effect of using technical solutions of the utility model.But this area those skilled in the art are appreciated that under the situation of the spirit and scope of the present utility model that do not deviate from the claims definition, can make multiple modification in form and details.
Claims (9)
1. ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle, this device comprises process tank (1), ultrasonic system, mixing part, heater (7), doser (8), silt particle liquid level sensor (9), wherein ultrasonic system, mixing part, heater (7), doser (8), silt particle liquid level sensor (9) is connected with process tank (1);
It is characterized in that: ultrasonic system is made up of ultrasonic wave vibration plate (2), ultrasonic power (3) and ultrasonic controller (4), and ultrasonic wave vibration plate (2) is electrically connected with ultrasonic power (3) and ultrasonic controller (4) respectively.
2. the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle according to claim 1, it is characterized in that: process tank (1) is provided with top cover, be provided with into silt particle mouth (10), water inlet (11), dosing mouth on the top cover and be provided with spoil disposal sandpipe (15) at the bottom of the tank body of process tank (1), process tank (1) sidewall is provided with motor-driven valve (12) and discharging tube (14).
3. the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle according to claim 2 is characterized in that: ultrasonic wave vibration plate (2) is installed on the process tank internal side wall; The chromium plating of ultrasonic wave vibration plate outer surface is handled, chromium coating thickness 〉=50 μ m.
4. the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle according to claim 3 is characterized in that: the output frequency and the power of ultrasonic controller (4) control ultrasonic wave vibration plate (2).
5. the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle according to claim 1, it is characterized in that: the mixing part is made up of agitator (5) and frequency converter (6), agitator comprises motor, shaft, stirring vane and shaft coupling, motor places on the top cover of process tank (1), stirring vane is installed on the shaft, place in the process tank (1), shaft coupling peripheral hardware sealing and pass through from the tank body top cover is fixed on the top cover of process tank (1) by stirring support.
6. the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle according to claim 5 is characterized in that: 2 groups of stirring vanes are installed on the shaft at least, and stirring vane is leafy formula hinged joint turbine, and the installation site on shaft is adjustable.
7. according to claim 2 or the described ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle of claim 5, it is characterized in that: the silt particle liquid level sensor (9) of process tank (1) internal side wall is connected with motor-driven valve (12), according to the open and close of controlling motor-driven valve (12) from the signal of silt particle liquid level sensor (9).
8. the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle according to claim 1, it is characterized in that: heating rod and jet chimney that heater (7) comprises temp controlled meter, thermocouple, is connected with thermocouple with temp controlled meter, heating rod gos deep in the process tank (1), and temp controlled meter and thermocouple place on the top cover of process tank (1).
9. the ultrasonic cleaning equipment that is used for the oil field oil-containing silt particle according to claim 1 is characterized in that: the bottom tank body of process tank (1) is sphere or taper, is installed on the fixed support (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201481241U CN201644437U (en) | 2010-04-02 | 2010-04-02 | Ultrasonic cleaning device used for contaminated sand of oilfields |
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| CN2010201481241U CN201644437U (en) | 2010-04-02 | 2010-04-02 | Ultrasonic cleaning device used for contaminated sand of oilfields |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583919A (en) * | 2012-02-23 | 2012-07-18 | 浙江大学 | Ultrasonic assistant hot wash device and method for oily sludge |
| CN103406305A (en) * | 2013-08-23 | 2013-11-27 | 江苏星马力科技有限公司 | Efficient self-cleaning stirring tank |
| CN105290041A (en) * | 2015-10-29 | 2016-02-03 | 芜湖汉峰科技有限公司 | Ultrasonic cleaning machine for liquid storage device |
| CN105414105A (en) * | 2015-12-11 | 2016-03-23 | 大连远东新材料科技有限公司 | Ultrasonic stirring kettle for cleaning grinding metal powder containing oil |
| CN106669481A (en) * | 2016-12-02 | 2017-05-17 | 常州大学 | Oil-sand separation cavitator |
| CN107036869A (en) * | 2017-01-22 | 2017-08-11 | 内蒙古民族大学 | A kind of ultrasonic wave root system cleaning machine and its method of work |
| CN110052325A (en) * | 2019-05-29 | 2019-07-26 | 长江造型材料(集团)科左后旗有限公司 | It is a kind of for sorting the control system of quartz sand |
| CN114085015A (en) * | 2021-10-27 | 2022-02-25 | 德仕能源科技集团股份有限公司 | Underground operation oil sludge reduction control equipment and use method thereof |
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2010
- 2010-04-02 CN CN2010201481241U patent/CN201644437U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583919A (en) * | 2012-02-23 | 2012-07-18 | 浙江大学 | Ultrasonic assistant hot wash device and method for oily sludge |
| CN102583919B (en) * | 2012-02-23 | 2013-05-29 | 浙江大学 | Ultrasonic assistant hot wash device and method for oily sludge |
| CN103406305A (en) * | 2013-08-23 | 2013-11-27 | 江苏星马力科技有限公司 | Efficient self-cleaning stirring tank |
| CN105290041A (en) * | 2015-10-29 | 2016-02-03 | 芜湖汉峰科技有限公司 | Ultrasonic cleaning machine for liquid storage device |
| CN105414105A (en) * | 2015-12-11 | 2016-03-23 | 大连远东新材料科技有限公司 | Ultrasonic stirring kettle for cleaning grinding metal powder containing oil |
| CN106669481A (en) * | 2016-12-02 | 2017-05-17 | 常州大学 | Oil-sand separation cavitator |
| CN106669481B (en) * | 2016-12-02 | 2019-07-09 | 常州大学 | A kind of oil-sand separation cavitation device |
| CN107036869A (en) * | 2017-01-22 | 2017-08-11 | 内蒙古民族大学 | A kind of ultrasonic wave root system cleaning machine and its method of work |
| CN110052325A (en) * | 2019-05-29 | 2019-07-26 | 长江造型材料(集团)科左后旗有限公司 | It is a kind of for sorting the control system of quartz sand |
| CN114085015A (en) * | 2021-10-27 | 2022-02-25 | 德仕能源科技集团股份有限公司 | Underground operation oil sludge reduction control equipment and use method thereof |
| CN114085015B (en) * | 2021-10-27 | 2024-05-28 | 胜利油田中扬石油工程有限公司 | Underground operation oil sludge and sand reduction control equipment and application method thereof |
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Owner name: BEIJING BRUNT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHEN CAIXIA Effective date: 20101227 |
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Free format text: CORRECT: ADDRESS; FROM: 100029 ROOM 2006, TOWER D, JUNFENG HUATING, NO.69, BEICHEN WEST ROAD, CHAOYANG DISTRICT, BEIJING TO: 100029 ROOM 2006, UNIT 4, NO.69, BEICHEN WEST ROAD, CHAOYANG DISTRICT, BEIJING |
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Effective date of registration: 20101227 Address after: 100029, room 4, unit 69, 2006 West Beichen Road, Beijing, Chaoyang District Patentee after: Beijing Brunt Technology Co., Ltd. Address before: 100029, room 2006, block D, Mount Feng, No. 69, Beichen West Road, Chaoyang District, Beijing, Huating Patentee before: Chen Caixia |
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Granted publication date: 20101124 Termination date: 20190402 |