CN107288587A - A kind of novel oil production tubing string - Google Patents
A kind of novel oil production tubing string Download PDFInfo
- Publication number
- CN107288587A CN107288587A CN201710699027.8A CN201710699027A CN107288587A CN 107288587 A CN107288587 A CN 107288587A CN 201710699027 A CN201710699027 A CN 201710699027A CN 107288587 A CN107288587 A CN 107288587A
- Authority
- CN
- China
- Prior art keywords
- oil
- oil pipe
- outer oil
- tubing string
- production tubing
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000003028 elevating effect Effects 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000000565 sealant Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 114
- 239000010779 crude oil Substances 0.000 abstract description 19
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/18—Pipes provided with plural fluid passages
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Filtration Of Liquid (AREA)
- Sewage (AREA)
Abstract
The invention discloses a kind of novel oil production tubing string, including outer oil pipe, the upper end of the outer oil pipe is provided with oil-out, the lower end of the outer oil pipe is provided with oil inlet, the inside of the outer oil pipe is provided with inner oil tube, the oil-out and oil inlet are connected through the side wall of outer oil pipe with inner oil tube, the lateral wall of the inner oil tube is provided with multiple geometrical clamps, and the two ends of each geometrical clamp are each attached on the inwall of outer oil pipe, the middle part of the inner oil tube is provided with screen pack, the first opening is offered on the side side wall of the outer oil pipe, slide bar is inserted with first opening, the one end of the slide bar inside outer oil pipe is fixedly connected with filter layer, the one end of the filter layer away from slide bar is provided with fixture block, the one end of the fixture block away from filter layer is provided with fixing device.The present invention is effectively solved abrasion of the silt to flow string in crude oil and blocked and the damage to oil well pump by the filtering to crude oil, simple in construction, convenient and practical.
Description
Technical field
The present invention relates to technical field of oil extraction equipment, more particularly to a kind of novel oil production tubing string.
Background technology
Flow string is used for extracting the oil in oilbearing stratum, can be used for all trades and professions after refinement, can promote economy
Development, oil is a kind of essential energy of necessary for human.And existing oil field subsurface structure is complicated, belong to a variety of oil
Type and many construction, many series of strata, the compound oil gas areas of many oil properties are hidden, underground silt content is big, contains in mined crude oil
There is substantial amounts of silt, cause flow string serious wear, easily block, cause oil well pump body running to fail, reduce making for tubing string
Use the life-span.
The content of the invention
The invention aims to solve to contain substantial amounts of silt, flow string serious wear in mined crude oil
Shortcoming, and propose a kind of novel oil production tubing string.
To achieve these goals, present invention employs following technical scheme：
A kind of novel oil production tubing string, including outer oil pipe, the upper end of the outer oil pipe are provided with oil-out, and the lower end of the outer oil pipe is set
Have an oil inlet, the inside of the outer oil pipe is provided with inner oil tube, the oil-out and oil inlet through outer oil pipe side wall with it is interior
Oil pipe is connected, and the lateral wall of the inner oil tube is provided with multiple geometrical clamps, and the two ends of each geometrical clamp are each attached to outer oil pipe
Inwall on, the middle part of the inner oil tube is provided with screen pack, the side side wall of the outer oil pipe and offers the first opening, described
Slide bar is inserted with first opening, the one end of the slide bar inside outer oil pipe is fixedly connected with filter layer, the filter layer
One end away from slide bar is provided with fixture block, and the one end of the fixture block away from filter layer is provided with fixing device, the lower end of the outer oil pipe
Provided with two fixed blocks, two fixed blocks are located at the both sides of oil inlet, and the both sides of the fixed block are provided with retainer ring, described
Multiple first springs are provided with retainer ring.
It is preferred that, the inwall of the outer oil pipe is provided with scuff-resistant coating, and the outer wall of the inner oil tube is provided with anti-oil reservoir.
It is preferred that, the side side wall of the outer oil pipe, which is provided with mounting groove, the mounting groove, is provided with mounting rod, the peace
The one end of dress bar away from outer oil pipe is fixedly connected with screen pack, and the mounting rod is provided with arc close to the side of mounting groove inwall
Ring, the inwall of the mounting groove is provided with the recess corresponding with arc ring size position.
It is preferred that, the fixing device is made up of wedge, second spring, push rod, elevating lever and gear, the outer oil pipe
Standing groove is offered on the inwall of fixture block, the bottom of the standing groove is provided with multiple spring levers, the interior bottom of the outer oil pipe
Portion is provided with groove, and the bottom of the groove is provided with multiple second springs, and the one end of the second spring away from bottom portion of groove is fixed
Wedge is connected with, the bottom of the wedge is provided with elevating lever, and the outer oil pipe is opened on the side side wall away from the first opening
Provided with the second opening, push rod is provided with second opening, the bottom wall of the outer oil pipe is provided with gear, and the elevating lever is through recessed
The bottom wall of groove is connected with gear, and the push rod and elevating lever are equipped with the rack being meshed with gear close to the side of gear.
It is preferred that, fixture block offers bayonet socket close to the side of groove, and the size of the bayonet socket and wedge matches.
It is preferred that, the spring lever is constituted by elastic rod and around the spring being located on elastic rod.
It is preferred that, it is equipped with sealant on the both sides side wall of the slide bar and mounting rod.
In the present invention, the retainer ring on the fixed block of outer oil pipe lower end is used for being fixed on quarrying apparatus, in retainer ring
First spring is easy to blocking for retainer ring, when installing filter layer, and filter layer passes through in slide bar advancing into the first opening
In oil pipe, the fixture block of filter layer other end extruding wedge, wedge is toward moving in groove, when sliding into the bayonet socket on fixture block, wedge
Upspring in the presence of shape block second spring and block bayonet socket, elevating lever rises after being fallen before during extruding wedge, taken out
During filter layer, push rod is pulled outward, gear drives elevating lever to move down, so that wedge departs from from bayonet socket, fixed block
Ejected in the presence of spring lever, slide bar can be pulled out from the first opening, and convenient replacing and cleaning to filter layer, crude oil leads to
Cross oil inlet and enter inner oil tube, preliminary removing, the filtering Netcom of mounting rod one end are carried out to the impurity of crude oil by filter layer
Cross mounting groove to be installed in inner oil tube, consolidated by installing in the recess that the arc ring of bar side wall is caught on mounting groove inwall
Fixed, crude oil carries out secondary filter after filter layer to screen pack, then is transported crude oil by oil-out, on inner oil tube outer wall
Geometrical clamp is used for fixing inner oil tube, prevents inner oil tube from tilting, when the scuff-resistant coating in outer oil pipe inwall is effectively prevented work pair
Anti- oil reservoir on the abrasion that flow string is produced, inner oil tube outer wall can prevent the both sides side of the seepage of crude oil, slide bar and mounting rod
It is equipped with sealant figure and is not drawn on wall, installing can be by the company of inner oil tube and screen pack and filter layer after screen pack and filter layer
Place's sealing is connect, prevents crude oil from spilling.The present invention effectively solves in crude oil silt to flow string by the filtering to crude oil
Abrasion block and the damage to oil well pump, it is simple in construction, it is convenient and practical.
Brief description of the drawings
Fig. 1 is a kind of structural representation of novel oil production tubing string front view proposed by the present invention；
Fig. 2 is a kind of structural representation of novel oil production tubing string part B proposed by the present invention；
Fig. 3 is a kind of structural representation of novel oil production tubing string part A proposed by the present invention.
In figure：1 outer oil pipe, 2 oil-outs, 3 oil inlets, 4 inner oil tubes, 5 geometrical clamps, 6 screen packs, 7 slide bars, 8 filter layers, 9
Fixed block, 10 retainer rings, 11 mounting rods, 12 recesses, 13 arc rings, 14 spring levers, 15 fixture blocks, 16 wedges, 17 second springs,
18 push rods, 19 elevating levers, 20 gears.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
Reference picture 1-3, a kind of novel oil production tubing string, including outer oil pipe 1, the upper end of outer oil pipe 1 are provided with oil-out 2, outer oil
The lower end of pipe 1 is provided with oil inlet 3, and the inside of outer oil pipe 1 is provided with inner oil tube 4, and the inwall of outer oil pipe 1 is provided with scuff-resistant coating, interior oil
The outer wall of pipe 4 is provided with anti-oil reservoir, and scuff-resistant coating can prevent the abrasion produced during work to outer oil pipe 1, and anti-oil reservoir can prevent interior oil
The Central Plains oil seepage of pipe 4, oil-out 2 and oil inlet 3 are connected through the side wall of outer oil pipe 1 with inner oil tube 4, the outside of inner oil tube 4
Wall is provided with multiple geometrical clamps 5, and the two ends of each geometrical clamp 5 are each attached on the inwall of outer oil pipe 1, and geometrical clamp 5 can be prevented
Inner oil tube 5 is tilted, and the middle part of inner oil tube 4 is provided with screen pack 6, and the side side wall of outer oil pipe 1, which is provided with mounting groove, mounting groove, to be set
There is mounting rod 11, the one end of mounting rod 11 away from outer oil pipe 1 is fixedly connected with screen pack 6, and mounting rod 11 is close to mounting groove inwall
Side be provided with arc ring 13, the inwall of mounting groove is provided with the recess 12 corresponding with the size position of arc ring 13, mounting rod 11
Offered in insertion mounting groove by arc ring 13 and the identical of recess 12 to fix on screen pack 6, the side side wall of outer oil pipe 1
Slide bar 7 is inserted with first opening, the first opening, the one end of slide bar 7 inside outer oil pipe 1 is fixedly connected with filter layer 8, mistake
The one end of filtering layer 8 away from slide bar 7 is provided with fixture block 15, the both sides side wall of slide bar 7 and mounting rod 11 and is equipped with sealant, slide bar 7
After in the opening of the insertion of mounting rod 11 first and mounting groove, sealant is combined closely with the first opening and the inwall of mounting groove, is prevented
The only crude oil leakage in inner oil tube 4, the one end of fixture block 15 away from filter layer 8 is provided with fixing device, fixing device by wedge 16,
Second spring 17, push rod 18, elevating lever 19 and gear 20 are constituted, and outer oil pipe 1 offers standing groove on the inwall of fixture block 15,
The bottom of standing groove is provided with multiple spring levers 14, and spring lever 14 is constituted by elastic rod and around the spring being located on elastic rod, outer oil
The inner bottom part of pipe 1 is provided with groove, and the bottom of groove is provided with multiple second springs 17, the one end of second spring 17 away from bottom portion of groove
Wedge 16 is fixedly connected with, the bottom of wedge 16 is provided with elevating lever 19, side side wall of the outer oil pipe 1 away from the first opening
Offer and push rod 18 is provided with the second opening, the second opening, the bottom wall of outer oil pipe 1 is provided with gear 20, the through-going recess of elevating lever 19
Bottom wall be connected with gear 20, push rod 18 and elevating lever 19 are equipped with the tooth being meshed with gear 20 close to the side of gear 20
Bar, fixture block 15 offers bayonet socket close to the side of groove, and the size of bayonet socket and wedge 16 matches, when installing filter layer 8, mistake
The advancing into inner oil tube 4 in the first opening by slide bar 7 of filtering layer 8, the extruding wedge of fixture block 15 of the other end of filter layer 8
16, wedge 16 is toward moving in groove, and when sliding into the bayonet socket on fixture block 15, wedge 16, which is upspring, blocks bayonet socket, and elevating lever 19 exists
Rise after being fallen before during extruding wedge 16, when taking out filter layer 8, push rod 18 is pulled outward, gear 20 drives lifting
Bar 19 is moved down, so that wedge 16 departs from from bayonet socket, fixed block 15 is ejected in the presence of spring lever 14, slide bar 7
It can be pulled out from the first opening, convenient replacing and cleaning to filter layer 8, the lower end of outer oil pipe 1 is provided with two fixed blocks 9,
Two fixed blocks are located at the both sides of oil inlet 3, and the both sides of fixed block 9, which are provided with retainer ring 10, retainer ring 10, is provided with multiple first
Retainer ring 10 on spring, fixed block 9 is used for being fixed on quarrying apparatus.
In the present invention, the retainer ring 10 on the fixed block 9 of the lower end of outer oil pipe 1 is used for being fixed on quarrying apparatus, retainer ring
The first spring in 10 is easy to blocking for retainer ring 10, when installing filter layer 8, filter layer 8 by slide bar 7 in the first opening
Advance into inner oil tube 4, the fixture block 15 of the other end of filter layer 8 extruding wedge 16, wedge 16 is slided into toward moving in groove
During bayonet socket on fixture block 15, wedge 16 is upspring in the presence of second spring 17 blocks bayonet socket, and elevating lever 19 is in extruding wedge shape
Rise after being fallen before during block 16, when taking out filter layer 8, push rod 18 is pulled outward, gear 20 drives elevating lever 19 down
Mobile, so that wedge 16 departs from from bayonet socket, fixed block 15 is ejected in the presence of spring lever 14, and slide bar 7 can be from the
Pulled out in one opening, convenient replacing and cleaning to filter layer 8, crude oil enters inner oil tube 4 by oil inlet 3, passes through filter layer 8
Preliminary removing is carried out to the impurity of crude oil, the screen pack 6 of the one end of mounting rod 11 is installed in inner oil tube 4 by mounting groove, is led to
Cross and be fixed in the recess 12 that the arc ring 13 of the side wall of mounting rod 11 is caught on mounting groove inwall, crude oil is after filter layer 8
Secondary filter is carried out to screen pack 6, then is transported crude oil by oil-out 2, the geometrical clamp 5 on the outer wall of inner oil tube 4 is used for fixing
Inner oil tube 4, prevents inner oil tube 4 from tilting, and the scuff-resistant coating in the inwall of outer oil pipe 1 is produced when being effectively prevented work to flow string
Abrasion, the anti-oil reservoir on the outer wall of inner oil tube 4 can prevent the seepage of crude oil, be all provided with the both sides side wall of slide bar 7 and mounting rod 11
There is sealant（It is not drawn into figure）, installing can be by the company of inner oil tube 4 and screen pack 6 and filter layer 8 after screen pack 6 and filter layer 8
Place's sealing is connect, prevents crude oil from spilling.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of novel oil production tubing string, including outer oil pipe（1）, it is characterised in that the outer oil pipe（1）Upper end be provided with oil-out
（2）, the outer oil pipe（1）Lower end be provided with oil inlet（3）, the outer oil pipe（1）Inside be provided with inner oil tube（4）, it is described go out
Hydraulic fluid port（2）And oil inlet（3）Run through outer oil pipe（1）Side wall and inner oil tube（4）Connection, the inner oil tube（4）Lateral wall
It is provided with multiple geometrical clamps（5）, and each geometrical clamp（5）Two ends be each attached to outer oil pipe（1）Inwall on, the inner oil tube
（4）Middle part be provided with screen pack（6）, the outer oil pipe（1）Side side wall on offer the first opening, in first opening
It is inserted with slide bar（7）, the slide bar（7）Close to outer oil pipe（1）Internal one end is fixedly connected with filter layer（8）, the filtering
Layer（8）Away from slide bar（7）One end be provided with fixture block（15）, the fixture block（15）Away from filter layer（8）One end filled provided with fixed
Put, the outer oil pipe（1）Lower end provided with two fixed blocks（9）, two fixed blocks are positioned at oil inlet（3）Both sides, institute
State fixed block（9）Both sides be provided with retainer ring（10）, the retainer ring（10）It is interior to be provided with multiple first springs.
2. a kind of novel oil production tubing string according to claim 1, it is characterised in that the outer oil pipe（1）Inwall on set
There are scuff-resistant coating, the inner oil tube（4）Outer wall be provided with anti-oil reservoir.
3. a kind of novel oil production tubing string according to claim 1, it is characterised in that the outer oil pipe（1）Side side wall
It is provided with mounting groove, the mounting groove and is provided with mounting rod（11）, the mounting rod（11）Away from outer oil pipe（1）One end fix
It is connected with screen pack（6）, the mounting rod（11）Arc ring is provided with close to the side of mounting groove inwall（13）, the mounting groove
Inwall is provided with and arc ring（13）The corresponding recess in size position（12）.
4. a kind of novel oil production tubing string according to claim 1, it is characterised in that the fixing device is by wedge
（16）, second spring（17）, push rod（18）, elevating lever（19）And gear（20）Composition, the outer oil pipe（1）Close to fixture block（15）
Inwall on offer standing groove, the bottom of the standing groove is provided with multiple spring levers（14）, the outer oil pipe（1）Inner bottom part
Provided with groove, the bottom of the groove is provided with multiple second springs（17）, the second spring（17）One away from bottom portion of groove
End is fixedly connected with wedge（16）, the wedge（16）Bottom be provided with elevating lever（19）, the outer oil pipe（1）Away from the
Offered on the side side wall of one opening in the second opening, second opening and be provided with push rod（18）, the outer oil pipe（1）Bottom
Wall is provided with gear（20）, the elevating lever（19）The bottom wall and gear of through-going recess（20）Connection, the push rod（18）And lifting
Bar（19）Close to gear（20）Side be equipped with and gear（20）The rack being meshed.
5. a kind of novel oil production tubing string according to claim 4, it is characterised in that the fixture block（15）Close to the one of groove
Side offers bayonet socket, the bayonet socket and wedge（16）Size match.
6. a kind of novel oil production tubing string according to claim 1, it is characterised in that the spring lever（14）By elastic rod and
Around the spring composition being located on elastic rod.
7. a kind of novel oil production tubing string according to claim 1, it is characterised in that the slide bar（7）And mounting rod（11）
Both sides side wall on be equipped with sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699027.8A CN107288587B (en) | 2017-08-15 | 2017-08-15 | novel oil production pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699027.8A CN107288587B (en) | 2017-08-15 | 2017-08-15 | novel oil production pipe column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107288587A true CN107288587A (en) | 2017-10-24 |
| CN107288587B CN107288587B (en) | 2020-01-31 |
Family
ID=60106965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710699027.8A Active CN107288587B (en) | 2017-08-15 | 2017-08-15 | novel oil production pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288587B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673423A (en) * | 2017-11-07 | 2018-02-09 | 东莞市天合机电开发有限公司 | A kind of small-sized water purifier of lateral replacement water purification core body |
| CN108372967A (en) * | 2018-04-26 | 2018-08-07 | 广州创惠信息科技有限公司 | A kind of heparin tube printer-labeler and its control method |
| CN108754038A (en) * | 2018-06-05 | 2018-11-06 | 广州益合康科技材料有限公司 | A kind of synthetic leather embossing machine with refrigerating function |
| CN108939679A (en) * | 2018-05-25 | 2018-12-07 | 湖北省联投生物科技股份有限公司 | A kind of effective filter of cystine preparation |
| CN109530223A (en) * | 2018-11-27 | 2019-03-29 | 禹州市华盛钧窑有限公司 | A kind of Ceramic manufacturing pug agitating device part replacement mechanism |
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| CN205036359U (en) * | 2015-10-15 | 2016-02-17 | 牛猛 | Sand control layering oil production device |
| US20160084057A1 (en) * | 2014-09-24 | 2016-03-24 | Baker Hughes Incorporated | Concentric coil tubing deployment for hydraulic fracture application |
| CN205605125U (en) * | 2015-11-15 | 2016-09-28 | 薛广鹏 | Flow string |
| CN106587185A (en) * | 2016-11-24 | 2017-04-26 | 刘少彬 | Intelligent farmland environmental-protection device |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160084057A1 (en) * | 2014-09-24 | 2016-03-24 | Baker Hughes Incorporated | Concentric coil tubing deployment for hydraulic fracture application |
| CN205036359U (en) * | 2015-10-15 | 2016-02-17 | 牛猛 | Sand control layering oil production device |
| CN205605125U (en) * | 2015-11-15 | 2016-09-28 | 薛广鹏 | Flow string |
| CN106587185A (en) * | 2016-11-24 | 2017-04-26 | 刘少彬 | Intelligent farmland environmental-protection device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673423A (en) * | 2017-11-07 | 2018-02-09 | 东莞市天合机电开发有限公司 | A kind of small-sized water purifier of lateral replacement water purification core body |
| CN108372967A (en) * | 2018-04-26 | 2018-08-07 | 广州创惠信息科技有限公司 | A kind of heparin tube printer-labeler and its control method |
| CN108372967B (en) * | 2018-04-26 | 2024-02-13 | 广州创惠信息科技有限公司 | Blood collection tube printing labeling machine and control method thereof |
| CN108939679A (en) * | 2018-05-25 | 2018-12-07 | 湖北省联投生物科技股份有限公司 | A kind of effective filter of cystine preparation |
| CN108754038A (en) * | 2018-06-05 | 2018-11-06 | 广州益合康科技材料有限公司 | A kind of synthetic leather embossing machine with refrigerating function |
| CN109530223A (en) * | 2018-11-27 | 2019-03-29 | 禹州市华盛钧窑有限公司 | A kind of Ceramic manufacturing pug agitating device part replacement mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107288587B (en) | 2020-01-31 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiu Hong Inventor after: Xiao Maohua Inventor after: Zhao Junxian Inventor after: Tao Qi Inventor before: Tao Qi |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191225 Address after: 224200 No.9, Weiwu Road, Dongtai Economic Development Zone, Yancheng City, Jiangsu Province Applicant after: Jiangsu Xin Petroleum Machinery Co., Ltd. Address before: 241000 Anhui province Wuhu Baimao town Jiujiang District long condensate ninth administrative villages in 004 villages Applicant before: Tao Qi |
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| TA01 | Transfer of patent application right | ||
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Denomination of invention: A new oil production string Effective date of registration: 20210730 Granted publication date: 20200131 Pledgee: Dongtai Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: JIANGSU HEXIN PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2021320000151 |
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