CN201387489Y - Antenna system conducting resistivity log according to electromagnetic waves - Google Patents
Antenna system conducting resistivity log according to electromagnetic waves Download PDFInfo
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- CN201387489Y CN201387489Y CN200920148421U CN200920148421U CN201387489Y CN 201387489 Y CN201387489 Y CN 201387489Y CN 200920148421 U CN200920148421 U CN 200920148421U CN 200920148421 U CN200920148421 U CN 200920148421U CN 201387489 Y CN201387489 Y CN 201387489Y
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Abstract
The utility model provides an antenna system conducting resistivity log according to electromagnetic waves. The antenna system comprises at least two transmitting antennas and at least two receiving antennas; the transmitting antennas and the receiving antennas are wound on a non-magnetic metal base (for example, a non-magnetic drill collar), the transmitting antennas are positioned in the middle of the antenna system; and at least two receiving antennas are symmetrically or asymmetrically arranged on two sides of the transmitting antennas. The antenna system not only can provide the radial measurement for various investigation depths, but also can compensate the deviation of the transmitting antennas, the receiving antennas and electronic circuits, and the influence of irregular boreholes.
Description
Technical field
The utility model relates to a kind of well logging apparatus of layer resistivity characteristic definitely that is used for, relate in particular to a kind of be suitable for bore resistivity logging with boring electromagnetic wave resistivity well logging antenna system.
Background technology
Present can reduce three types with boring the electromagnetic wave resistivity antenna system: non-compensated, its emitting antenna is in the one-sided arrangement of receiving antenna, as single-emission and double-receiving, single-shot overcharge, multiple two antenna systems of receiving; Symmetrical compensation type, emitting antenna are in the arrangement of receiving antenna symmetria bilateralis, as two two receipts, four pairs of receipts (sending out pair receipts for two groups pairs), six pairs of receipts (three groups of two pairs of receipts), six three receipts antenna systems such as (combinations of more kinds of two pairs of receipts are provided); Weight coefficient weighting compensation is asymmetric, and its emitting antenna is realized compensation in the complete asymmetric geometry in receiving antenna both sides by the weight coefficient weighted, as multiple two the receipts.
Non-compensated antenna system advantage is that antenna system length is short, and shortcoming is to realize compensation such as antenna, circuit and hole anomaly, and the measuring accuracy of formation resistivity and dynamic range can be subjected to the influence of these factors.Symmetrical compensation type antenna system advantage is can compensate to eliminate the amplitude fading sum of errors phase difference error that antenna, circuit cause, the influence that can proofread and correct hole anomaly again, and its shortcoming is that antenna system is longer, is not easy to combination and execute-in-place.Each antenna alignment and parameter that weighting compensates asymmetric antenna system are through optimized choice and choose reasonable weight coefficient, obtain the compensation response by weighted stacking, and the advantage of this antenna system is: can obtain the measurement of more kinds of investigation depths; Not only can eliminate the amplitude fading sum of errors phase difference error that antenna and circuit cause, and can eliminate the hole anomaly influence effectively, the shortcoming of this antenna system is: in order to reach good borehole compensation effect, need to select more emission or receiving antenna, cause radiating circuit or receiving circuit passage more like this, the circuit complexity, even like this, the asymmetrical antenna system of weighting compensation also is difficult to eliminate fully the hole anomaly influence, show that mainly collapse " jump point " at upper and lower interface place of well can not be eliminated fully, particularly can be obvious when the send-receive sky line-spacing that participates in the weighting compensation differs too big.
Summary of the invention
The purpose of this utility model is to provide that a kind of this system can either provide multiple radial depth of investigetion to measure with boring electromagnetic wave resistivity well logging antenna system, again can the compensate for emission antenna, receiving antenna, the drift of electronic circuit and the influence of hole anomaly.
Of the present utility modelly comprise at least two emitting antennas and at least two receiving antennas with boring electromagnetic wave resistivity well logging antenna system, described emitting antenna and receiving antenna all are wound on the no magnetic metallic matrix (as non-magnetic drill collar), described emitting antenna is positioned at the middle part of antenna system, described at least two receiving antennas are symmetry or asymmetric geometry in described emitting antenna both sides, and the distance that asymmetric geometry described here refers to mid point between adjacent two receiving antennas and two emitting antennas is unequal.
Preferably, described receiving antenna is 4, is respectively first receiving antenna, second receiving antenna, the 3rd receiving antenna and the 4th receiving antenna; Described emitting antenna is 2, is respectively first emitting antenna and second emitting antenna.This kind antenna system is called two four and receives antenna systems, and first receiving antenna and the 4th receiving antenna are symmetrical up and down about the mid point of two emitting antennas, and the 3rd receiving antenna and second receiving antenna are symmetrical up and down about the mid point of two emitting antennas.First receiving antenna is positioned at the top of the 3rd receiving antenna, and the 4th receiving antenna is positioned at the below of second receiving antenna.
Preferably, described receiving antenna is 3, is respectively first receiving antenna, second receiving antenna, the 3rd receiving antenna; Described emitting antenna is 2, is respectively first emitting antenna and second emitting antenna; The 3rd receiving antenna and second receiving antenna are symmetrical up and down about the mid point of two emitting antennas, and this kind antenna system is called two three receipts antenna systems of sending out.Described first receiving antenna and the 3rd receiving antenna all are positioned at the top of first emitting antenna and second emitting antenna, and first receiving antenna is positioned at the top of the 3rd receiving antenna.In addition, also can be preferably, described first receiving antenna and second receiving antenna all are positioned at the below of first emitting antenna and second emitting antenna, and first receiving antenna is positioned at the below of second receiving antenna.
Of the present utility model have following beneficial effect with boring electromagnetic wave resistivity well logging antenna system: (1) can either provide multiple radial depth of investigetion to measure, again can the compensate for emission antenna, receiving antenna, the drift of electronic circuit and the influence of hole anomaly.(2) two four receipts antenna systems of sending out of the present utility model, emitting antenna is few, can improve the time efficiency of emission; When work, it is right that this antenna system can be formed four groups of send-receives such as T1T2-R1, T1T2-R2, T1T2-R3, T1T2-R4 respectively, and the phase differential and the amplitude fading that obtain four groups of symmetries are measured.(3) two three receipts antenna systems of sending out of the present utility model have the advantages that antenna amount is few, length is short, be convenient to execute-in-place, and it has realized the measurement of layer information more with still less receiving antenna or emitting antenna; When work, it is right that this antenna system is formed three groups of send-receives by three groups of two bills receipts (being T1T2-R1, T1T2-R2, T1T2-R3 etc.), produces the amplitude fading and the phase difference measurement (being produced by T1T2-R2, T1T2-R3) of one group of asymmetrical amplitude fading and phase difference measurement (being produced by T1T2-R1) and two groups of symmetries.
Description of drawings
Fig. 1 is two four receipts antenna systems of sending out of the present utility model;
Fig. 2 is two three receipts antenna systems of sending out of the present utility model;
Embodiment
Below in conjunction with accompanying drawing the utility model is done more detailed description.
Fig. 1 shows two four receipts antenna systems of sending out of the present utility model, it has two emitting antennas (being respectively the first emitting antenna T1 and the second emitting antenna T2) and four receiving antenna (first receiving antenna R1, the second receiving antenna R2, the 3rd receiving antenna R3 and the 4th receiving antenna R4), two emitting antenna T1, T2 is positioned at the middle part of described antenna system, emitting antenna T1, T2 and receiving antenna R1, R2, R3, R4 all is wound on the no magnetic metallic matrix (as non-magnetic drill collar), wherein 4 receiving antenna R1, R2, R3, R4 is about 2 emitting antenna T1, mid point between the T2 is symmetric offset spread up and down.The distance of the mid point between the first receiving antenna R1 (or the 4th receiving antenna R4) and emitting antenna T1, the T2 is greater than the distance of the mid point between the second receiving antenna R2 (or the 3rd receiving antenna R3) and emitting antenna T1, the T2.
Fig. 2 shows two three receipts antenna systems of sending out of the present utility model, and it has 3 receiving antennas (being respectively the first receiving antenna R1, the second receiving antenna R2, the 3rd receiving antenna R3) and 2 emitting antennas (being respectively the first emitting antenna T1 and the second emitting antenna T2).The first emitting antenna T1 and the second emitting antenna T2 are arranged on the middle part of antenna system, and the 3rd receiving antenna R3 and the second receiving antenna R2 are symmetrical up and down about the mid point of two emitting antennas.The first receiving antenna R1 is called receiving antenna far away, and it can be positioned at the top of the first emitting antenna T1 and the second emitting antenna T2, also can be positioned at the below of the first emitting antenna T1 and the second emitting antenna T2.As shown in Figure 2, when the first receiving antenna R1 was positioned at the top of the first emitting antenna T1 and the second emitting antenna T2, the distance of the mid point between the first receiving antenna R1 and emitting antenna T1, the T2 was greater than the distance of the mid point between the second receiving antenna R2 (or the 3rd receiving antenna R3) and emitting antenna T1, the T2.
Claims (7)
1, a kind of with boring electromagnetic wave resistivity well logging antenna system, comprise at least two emitting antennas and at least two receiving antennas, described emitting antenna and receiving antenna all are wound on the no magnetic metallic matrix, it is characterized in that: described emitting antenna is positioned at the middle part of antenna system, and described at least two receiving antennas are symmetry or asymmetric geometry in described emitting antenna both sides.
2, as claimed in claim 1 with boring electromagnetic wave resistivity well logging antenna system, it is characterized in that: described no magnetic metallic matrix is a non-magnetic drill collar.
3, as claimed in claim 1 or 2 with boring electromagnetic wave resistivity well logging antenna system, it is characterized in that: described receiving antenna is 4, is respectively first receiving antenna (R1), second receiving antenna (R2), the 3rd receiving antenna (R3) and the 4th receiving antenna (R4); Described emitting antenna is 2, is respectively first emitting antenna (T1) and second emitting antenna (T2); First receiving antenna (R1) and the 4th receiving antenna (R4) are symmetrical up and down about the mid point of two emitting antennas, and the 3rd receiving antenna (R3) and second receiving antenna (R2) are symmetrical up and down about the mid point of two emitting antennas.
4, as claimed in claim 1 or 2 with boring electromagnetic wave resistivity well logging antenna system, it is characterized in that: described receiving antenna is 3, is respectively first receiving antenna (R1), second receiving antenna (R2), the 3rd receiving antenna (R3); Described emitting antenna is 2, is respectively first emitting antenna (T1) and second emitting antenna (T2); The 3rd receiving antenna (R3) and second receiving antenna (R2) are symmetrical up and down about the mid point of two emitting antennas.
5, as claimed in claim 4 with boring electromagnetic wave resistivity well logging antenna system, it is characterized in that: described first receiving antenna (R1) and the 3rd receiving antenna (R3) all are positioned at the top of first emitting antenna (T1) and second emitting antenna (T2), and first receiving antenna (R1) is positioned at the top of the 3rd receiving antenna (R3).
6, as claimed in claim 4 with boring electromagnetic wave resistivity well logging antenna system, it is characterized in that: described first receiving antenna (R1) and second receiving antenna (R2) all are positioned at the below of first emitting antenna (T1) and second emitting antenna (T2), and first receiving antenna (R1) is positioned at the below of second receiving antenna (R2).
7, as claimed in claim 3 it is characterized in that: first receiving antenna (R1) is positioned at the top of the 3rd receiving antenna (R3) with boring electromagnetic wave resistivity well logging antenna system, and the 4th receiving antenna (R4) is positioned at the below of second receiving antenna (R2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920148421U CN201387489Y (en) | 2009-04-08 | 2009-04-08 | Antenna system conducting resistivity log according to electromagnetic waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920148421U CN201387489Y (en) | 2009-04-08 | 2009-04-08 | Antenna system conducting resistivity log according to electromagnetic waves |
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| CN201387489Y true CN201387489Y (en) | 2010-01-20 |
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| CN200920148421U Expired - Fee Related CN201387489Y (en) | 2009-04-08 | 2009-04-08 | Antenna system conducting resistivity log according to electromagnetic waves |
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| WO2012083585A1 (en) * | 2010-12-23 | 2012-06-28 | 中国石油化工股份有限公司 | Well logging device, well logging method and data processing apparatus |
| CN102619504A (en) * | 2012-04-17 | 2012-08-01 | 中国电子科技集团公司第二十二研究所 | Method for determining radial detection depth index of electromagnetic wave resistivity instrument while drilling |
| CN102628360A (en) * | 2012-04-17 | 2012-08-08 | 中国电子科技集团公司第二十二研究所 | Determination method for longitudinal resolution index of drilling electromagnetic wave resistivity instrument |
| CN102966348A (en) * | 2011-08-30 | 2013-03-13 | 王�忠 | Device and method for measurement while drilling of direction resistivity by using non-full circle antennas |
| CN103197311A (en) * | 2013-04-12 | 2013-07-10 | 中国石油集团钻井工程技术研究院 | Electromagnetic wave velocity measuring device and measuring method for horizontal well logging while drilling range radar |
| CN103206211A (en) * | 2013-04-19 | 2013-07-17 | 中国石油集团钻井工程技术研究院 | Horizontal-well-oriented drilling layer ranging radar device |
| CN104405378A (en) * | 2014-12-12 | 2015-03-11 | 中国石油天然气集团公司 | Electromagnetic wave resistivity logging-while-drilling tool |
| CN104594884A (en) * | 2014-12-12 | 2015-05-06 | 中国石油天然气集团公司 | Direction imaging electromagnetic wave electrical resistivity logging-while-drilling instrument with well pressure |
| CN105089651A (en) * | 2014-05-07 | 2015-11-25 | 中国石油化工股份有限公司 | Logging-while-drilling resistivity measuring device and logging-while-drilling resistivity measuring method |
| CN105089646A (en) * | 2014-05-07 | 2015-11-25 | 中国石油化工股份有限公司 | Logging-while-drilling resistivity measuring device with data transmission function and method |
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| CN106609667A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Electrode in electromagnetic measurement-while-drilling system |
| CN107191181A (en) * | 2017-05-24 | 2017-09-22 | 中国石油大学(华东) | A kind of well circumference surface detecting method based on electromagnetic scattering |
| CN108019207A (en) * | 2017-12-15 | 2018-05-11 | 北京六合伟业科技股份有限公司 | A kind of measuring method of SYMMETRIC ELECTROMAGNETIC ripple resistivity |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
| CN109209363A (en) * | 2018-09-14 | 2019-01-15 | 天津大学 | Cross casing stratum differential resistance rate well-logging probe structure |
| CN109952519A (en) * | 2016-10-31 | 2019-06-28 | 韩尉善 | By E antenna applications in resistivity well logging tool |
| CN111322063A (en) * | 2020-03-23 | 2020-06-23 | 中国石油天然气集团有限公司 | Deep detection logging-while-drilling instrument |
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2009
- 2009-04-08 CN CN200920148421U patent/CN201387489Y/en not_active Expired - Fee Related
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| US9927548B2 (en) | 2010-12-23 | 2018-03-27 | China Petroleum & Chemical Corporation | Apparatus for well logging capable of forward investigation |
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| WO2012083585A1 (en) * | 2010-12-23 | 2012-06-28 | 中国石油化工股份有限公司 | Well logging device, well logging method and data processing apparatus |
| CN102966348A (en) * | 2011-08-30 | 2013-03-13 | 王�忠 | Device and method for measurement while drilling of direction resistivity by using non-full circle antennas |
| CN102619504A (en) * | 2012-04-17 | 2012-08-01 | 中国电子科技集团公司第二十二研究所 | Method for determining radial detection depth index of electromagnetic wave resistivity instrument while drilling |
| CN102628360A (en) * | 2012-04-17 | 2012-08-08 | 中国电子科技集团公司第二十二研究所 | Determination method for longitudinal resolution index of drilling electromagnetic wave resistivity instrument |
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| CN103197311A (en) * | 2013-04-12 | 2013-07-10 | 中国石油集团钻井工程技术研究院 | Electromagnetic wave velocity measuring device and measuring method for horizontal well logging while drilling range radar |
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| CN106609667A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Electrode in electromagnetic measurement-while-drilling system |
| CN106609667B (en) * | 2015-10-22 | 2020-07-31 | 中国石油化工股份有限公司 | Electrode in electromagnetic measurement while drilling system |
| CN105863613A (en) * | 2016-06-01 | 2016-08-17 | 四川大学 | Sleeve type CT imaging peep testing system and testing method thereof |
| CN109952519A (en) * | 2016-10-31 | 2019-06-28 | 韩尉善 | By E antenna applications in resistivity well logging tool |
| CN109952519B (en) * | 2016-10-31 | 2021-08-17 | 韩尉善 | Application of E-field antenna to resistivity logging tool |
| CN107191181A (en) * | 2017-05-24 | 2017-09-22 | 中国石油大学(华东) | A kind of well circumference surface detecting method based on electromagnetic scattering |
| CN107191181B (en) * | 2017-05-24 | 2021-01-05 | 中国石油大学(华东) | Well periphery interface detection method based on electromagnetic scattering |
| CN108019207A (en) * | 2017-12-15 | 2018-05-11 | 北京六合伟业科技股份有限公司 | A kind of measuring method of SYMMETRIC ELECTROMAGNETIC ripple resistivity |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
| CN108756864B (en) * | 2018-04-27 | 2021-08-27 | 中国石油天然气集团有限公司 | Azimuthal electromagnetic wave resistivity imaging logging-while-drilling instrument |
| CN109209363A (en) * | 2018-09-14 | 2019-01-15 | 天津大学 | Cross casing stratum differential resistance rate well-logging probe structure |
| CN109209363B (en) * | 2018-09-14 | 2022-03-18 | 天津大学 | Through-casing formation differential resistivity logging probe structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20160408 |