CN201133245Y - Digital focusing induction logging instrument coil array - Google Patents
Digital focusing induction logging instrument coil array Download PDFInfo
- Publication number
- CN201133245Y CN201133245Y CNU2007203112381U CN200720311238U CN201133245Y CN 201133245 Y CN201133245 Y CN 201133245Y CN U2007203112381 U CNU2007203112381 U CN U2007203112381U CN 200720311238 U CN200720311238 U CN 200720311238U CN 201133245 Y CN201133245 Y CN 201133245Y
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- coil
- coil system
- induction logging
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Abstract
The utility model belongs to the technical equipment field of oil well logging, relating to a induction logging coil system used to make induction logging apparatus. The utility model provides mainly a digital focusing array induction logging coil system to conquer the problems of difficult coil adjustment, mobile coil position and inaccurate measuring result in the prior art. The technical proposal of the utility model is as follows: the digital focusing array induction logging coil system includes a polymer compositemandrel bar and a coil. A ceramic housing is arranged outside thepolymer composite mandrel bar and the coil is connected with the ceramic housing. The utility model not only maintains all the advantages of the prior structure but also has the following advantages: 1. the measure precision and thermal stability of the apparatus can be improved, 2. the influence of the metal mandrel bar on the measuring result is effectively conquered, which is favorable for optimizing the coil system structure and decreasing the structure size of the coil system in addition to improving the assembling efficiency of the coil system for making the measuring result closer to the real specific resistance of the stratum.
Description
Technical field:
The utility model relates to petroleum well logging technology equipment field, relates to a kind of digital focus induction log tool coil array.
Background technology:
The digital focus array induction logging tool is a kind of digitized novel resistivity measurement instrument, it mainly acts on is depths formation resistivity under the measuring well, and its result is applied to comprehensive log interpretation under the complex geological condition, it is one of main logger of using in the well logging engineering.The coil array of using in the induction log tool mainly contains two kinds of structures at present, the one, fiber reinforced plastics rod and the coil that is fixedly connected at its external surface, its subject matter is: poor heat stability, the space geometry distortion is big, coil can not be regulated, and directly influences the certainty of measurement and the temperature stability of instrument; The 2nd, metal mandrel adds the ceramic thread coil structures, and its subject matter is: coil classification degree of regulation is poor, and the influence of metal pair measurement result has uncertainty, and physical dimension is big, and complex process is made difficult in maintenance.
Summary of the invention:
The utility model will provide a kind of digital focus induction log tool coil array, to overcome that the coil that prior art exists is regulated difficulty, coil position is variable and to influence the problem of certainty of measurement.
For overcoming the problem that prior art exists, the technical solution of the utility model is: a kind of digital focus array induction logging tool coil array, comprise polymer composite plug 1 and ceramic jacket 2, its special character is: described polymer composite plug 1 is outside equipped with ceramic jacket 2, and coil 3 is connected on the ceramic jacket 2.
The balance end diameter of above-mentioned polymer composite plug 1 shrinks, and ceramic jacket 2 is arranged at the balance end outside.
Above-mentioned coil 3 connects with ceramic jacket 2 threadably.
This structure has not only kept all advantages of existing structure, also has the following advantages simultaneously:
1. overcome the poor heat stability of glass-reinforced plastic material structure coil array, the coil directly coupling signal is regulated the shortcoming of difficulty.Improve Instrument measuring precision and heat stability.
2. help overcoming the uncertainty of metal mandrel, help optimizing the coil array structure, reduce the physical dimension of coil array, help improving the coil array efficiency of assembling, make measurement result more approach the true resistivity on stratum the measurement result influence.
Description of drawings:
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the structural representation of embodiment 3;
Fig. 4 is the partial enlarged drawing of Fig. 3.
Description of reference numerals is as follows:
1-polymer composite plug; The 2-ceramic jacket; The 3-coil.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is elaborated.
Embodiment 1, referring to Fig. 1.Digital focus induction log tool coil array comprises the ceramic jacket 2 of polymer composite plug 1 and its arranged outside.Coil 3 adopts usual manner to be fixedly linked on the ceramic jacket 2.
Claims (3)
1, digital focus induction log tool coil array comprises polymer composite plug (1) and coil (3), and it is characterized in that: described polymer composite plug (1) is outside equipped with ceramic jacket (2), and coil (3) is connected on the ceramic jacket (2).
2, digital focus induction log tool coil array as claimed in claim 1 is characterized in that: the balance end diameter of described polymer composite plug (1) shrinks, and ceramic jacket (2) is arranged at the balance end outside.
3, digital focus induction log tool coil array as claimed in claim 1 or 2 is characterized in that: described coil (3) connects with ceramic jacket (2) threadably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203112381U CN201133245Y (en) | 2007-12-13 | 2007-12-13 | Digital focusing induction logging instrument coil array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203112381U CN201133245Y (en) | 2007-12-13 | 2007-12-13 | Digital focusing induction logging instrument coil array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133245Y true CN201133245Y (en) | 2008-10-15 |
Family
ID=40061518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203112381U Expired - Fee Related CN201133245Y (en) | 2007-12-13 | 2007-12-13 | Digital focusing induction logging instrument coil array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133245Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789003A (en) * | 2012-08-15 | 2012-11-21 | 中国石油天然气股份有限公司 | Method and device for performing stratum parameter inversion by using array induction logging data |
| CN103696754A (en) * | 2012-09-28 | 2014-04-02 | 中国石油集团长城钻探工程有限公司 | Mandrel assembly for induction logging instrument probe nipple and manufacturing method thereof |
-
2007
- 2007-12-13 CN CNU2007203112381U patent/CN201133245Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789003A (en) * | 2012-08-15 | 2012-11-21 | 中国石油天然气股份有限公司 | Method and device for performing stratum parameter inversion by using array induction logging data |
| CN102789003B (en) * | 2012-08-15 | 2015-07-08 | 中国石油天然气股份有限公司 | Method and device for performing stratum parameter inversion by using array induction logging data |
| CN103696754A (en) * | 2012-09-28 | 2014-04-02 | 中国石油集团长城钻探工程有限公司 | Mandrel assembly for induction logging instrument probe nipple and manufacturing method thereof |
| CN103696754B (en) * | 2012-09-28 | 2018-10-23 | 中国石油集团长城钻探工程有限公司 | Mandrel component and its manufacturing method for induction type logger probe nipple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20161213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |