CN2878669Y - Under-well magnetic flow sensor - Google Patents
Under-well magnetic flow sensor Download PDFInfo
- Publication number
- CN2878669Y CN2878669Y CNU2006200204461U CN200620020446U CN2878669Y CN 2878669 Y CN2878669 Y CN 2878669Y CN U2006200204461 U CNU2006200204461 U CN U2006200204461U CN 200620020446 U CN200620020446 U CN 200620020446U CN 2878669 Y CN2878669 Y CN 2878669Y
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- CN
- China
- Prior art keywords
- leg magnetic
- leg
- magnetic poles
- short
- long
- 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.)
- Expired - Fee Related
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- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 241000644035 Clava Species 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
Disclosed is a downhole electromagnetic flow transducer, which comprises a field core, a exciting coil, a short three-leg magnetic pole, a long three-leg magnetic pole, six electrodes, a coating and an insulated casing, wherein, the field core is a clava, exciting coil winds around the field core, the short three-leg magnetic pole and the long three-leg magnetic pole are drawn respectively from one of the two ends of the field core to the other end, various pole legs of the short three-leg magnetic pole and the long three-leg magnetic pole are inserted into the middle part of the corresponding gaps among the counterpart pole legs ,and forms a cage-like body enclosed by such six pole legs, the coating and the insulated casing are pipe-like bodies with six electrode holes arranged by an uniform distance around the walls in the middle of the coating and the insulated casing, the insulated casing are cased outside of the coating with their electrode holes corresponding mutually, the six electrodes are fixed on the electrode holes of the insulated casing without contacting with the walls of the electrode holes, the coating is cased on the cage-like body enclosed by the short three-leg magnetic pole and the long three-leg magnetic pole with the electrode holes distributed corresponding to the gaps of the magnetic poles of the cage-like body. The transducer has such advantages of high accuracy in flow measurement and high sensitivity.
Description
Technical field
The utility model relates to a kind of oil field underground electromagnetic flow sensor.
Background technology
Existing oil field is used for electromagnetic flow transducer that the flow of oil well delamination water filling is measured, has the low shortcoming of the flow measurement degree of accuracy and sensitivity.
Summary of the invention
The purpose of this utility model provides a kind of to the flow measurement degree of accuracy and highly sensitive underground electromagnetic flow sensor.
Solution of the present utility model is: it is by field core, magnet exciting coil, short three leg magnetic poles, long three leg magnetic poles, six electrodes, overcoat and insulating coating constitute, field core is a clava, magnet exciting coil is wrapped on the field core, short three leg magnetic poles and long three leg magnetic poles, guide an end into by the two ends of field core respectively, middle part, space between the alternate insertion of each utmost point leg the other side utmost point leg of short three leg magnetic poles and long three leg magnetic poles, the basket that formation is surrounded by six utmost point legs, overcoat and insulating coating are respectively six electrode holes are equidistantly offered at the middle part around jacket wall round tubular body, insulating coating is enclosed within outer putting, and electrode hole is corresponding, six electrodes are separately fixed on the electrode hole of insulating coating, and do not contact with the electrode hole wall of overcoat, overcoat is enclosed within on the basket that is surrounded by short three leg magnetic poles and long three leg magnetic poles, and the magnetic pole gap of the corresponding basket of its electrode hole distributes.
Technique effect of the present utility model is: it has the accuracy of measurement of flow and highly sensitive advantage.
Description of drawings
Accompanying drawing is the utility model embodiment sectional structure chart.
The specific embodiment
As shown in the figure, it is by field core (1), magnet exciting coil (2), short three leg magnetic poles (3), long three leg magnetic poles (4), six electrodes (5), overcoat (6) and insulating coating (7) constitute, field core (1) is a clava, magnet exciting coil (2) is wrapped on the field core (1), short three leg magnetic poles (3) and long three leg magnetic poles (4), guide an end into by the two ends of field core (1) respectively, middle part, space between the alternate insertion of each utmost point leg the other side utmost point leg of short three leg magnetic poles (3) and long three leg magnetic poles (4), the basket that formation is surrounded by six utmost point legs, overcoat (6) and insulating coating (7) are respectively six electrode holes are equidistantly offered at the middle part around jacket wall round tubular body, insulating coating (7) is enclosed within on the overcoat (6), and electrode hole is corresponding, six electrodes (5) are separately fixed on the electrode hole of insulating coating (7), and the electrode hole wall with overcoat (6) does not contact, overcoat (6) is enclosed within on the basket that is surrounded by short three leg magnetic poles (3) and long three leg magnetic poles (4), and the magnetic pole gap of the corresponding basket of its electrode hole distributes.
Claims (1)
1, the underground electromagnetic flow sensor, it is characterized in that, it is by field core (1), magnet exciting coil (2), short three leg magnetic poles (3), long three leg magnetic poles (4), six electrodes (5), overcoat (6) and insulating coating (7) constitute, field core (1) is a clava, magnet exciting coil (2) is wrapped on the field core (1), short three leg magnetic poles (3) and long three leg magnetic poles (4), guide an end into by the two ends of field core (1) respectively, middle part, space between the alternate insertion of each utmost point leg the other side utmost point leg of short three leg magnetic poles (3) and long three leg magnetic poles (4), the basket that formation is surrounded by six utmost point legs, overcoat (6) and insulating coating (7) are respectively six electrode holes are equidistantly offered at the middle part around jacket wall round tubular body, insulating coating (7) is enclosed within on the overcoat (6), and electrode hole is corresponding, six electrodes (5) are separately fixed on the electrode hole of insulating coating (7), and the electrode hole wall with overcoat (6) does not contact, overcoat (6) is enclosed within on the basket that is surrounded by short three leg magnetic poles (3) and long three leg magnetic poles (4), and the magnetic pole gap of the corresponding basket of its electrode hole distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200204461U CN2878669Y (en) | 2006-03-22 | 2006-03-22 | Under-well magnetic flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200204461U CN2878669Y (en) | 2006-03-22 | 2006-03-22 | Under-well magnetic flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878669Y true CN2878669Y (en) | 2007-03-14 |
Family
ID=37861084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200204461U Expired - Fee Related CN2878669Y (en) | 2006-03-22 | 2006-03-22 | Under-well magnetic flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878669Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598015B (en) * | 2009-06-23 | 2012-08-29 | 杭州瑞利声电技术公司 | High-precision measuring method for high-pressure well cementation slurry and device thereof |
| CN103900649A (en) * | 2014-04-04 | 2014-07-02 | 四川省科学城久利电子有限责任公司 | Electromagnetic flow transducer for downhole water distributor |
-
2006
- 2006-03-22 CN CNU2006200204461U patent/CN2878669Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598015B (en) * | 2009-06-23 | 2012-08-29 | 杭州瑞利声电技术公司 | High-precision measuring method for high-pressure well cementation slurry and device thereof |
| CN103900649A (en) * | 2014-04-04 | 2014-07-02 | 四川省科学城久利电子有限责任公司 | Electromagnetic flow transducer for downhole water distributor |
| CN103900649B (en) * | 2014-04-04 | 2016-10-05 | 四川省科学城久利电子有限责任公司 | Electromagnetic flow transducer for downhole water flow regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DAQING ZHONGXIN INSTRUMENTS CO., LTD. Free format text: FORMER OWNER: DONG HUA Effective date: 20121225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 157000 MUDANJIANG, HEILONGJIANG PROVINCE TO: 157000 DAQING, HEILONGJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121225 Address after: 157000 Heilongjiang province Daqing honggangqu Xingshugang Zhen Jin Shan Bao Cun Development District Jinshan trade building room 10 Patentee after: CITIC Daqing Instrument Co. Ltd. Address before: 157000 Heilongjiang province Mudanjiang Aimin District Konka Street No. 28 room 304 2 (electronic compound) Patentee before: Dong Hua |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20140322 |