CN102946001A - Antenna coupler coupled with logging-while-drilling resistivity apparatus - Google Patents
Antenna coupler coupled with logging-while-drilling resistivity apparatus Download PDFInfo
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- CN102946001A CN102946001A CN2012105067954A CN201210506795A CN102946001A CN 102946001 A CN102946001 A CN 102946001A CN 2012105067954 A CN2012105067954 A CN 2012105067954A CN 201210506795 A CN201210506795 A CN 201210506795A CN 102946001 A CN102946001 A CN 102946001A
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Abstract
The invention discloses an antenna coupler coupled with a logging-while-drilling resistivity apparatus, which overcomes the defect that an operation of carrying out working performance test on transmitting and receiving antennas of the logging-while-drilling resistivity apparatus is difficult to perform currently. The antenna coupler comprises a coupling coil, a coil bracket and a cable joint, wherein the coupling coil coupling transmitting and receiving antennas of the logging-while-drilling resistivity apparatus is fixed on a drill collar of the logging-while-drilling resistivity apparatus through the coil bracket; and the cable joint for connecting a transmission cable is connected with the coupling coil. According to the implementation of the invention, the conversion of signals between a simulation testing device and the apparatus is realized by using the electromagnetic coupling between coils and antennas according to the principle of electromagnetic wave propagation.
Description
Technical field
The present invention relates to a kind of antenna coupler, relate in particular to a kind of antenna coupler that is coupled with the resistivity logging while drilling logging instrument.
Background technology
The very first time that the resistivity logging while drilling logging instrument can bore on the stratum after opening is measured ground layer original resistivity value, can instruct accordingly the drilling engineer in time to process drilling program, and this performance is very important for multi-faceted drilling well.
Because the resistivity logging while drilling logging instrument generally is installed in the metal drill collar of several tons of weights, at present to instrument detect, the method for verification generally is to utilize " air zero " and " pond demarcation " (measuring instrument in the large pond of known resistivity) to carry out.These two kinds of detection methods are that complexity is inaccurate again, and because only have some scales, and finish or multiple spot scale at 2 almost is impossible work.
The high frequency of resistivity logging while drilling logging instrument (1,2MHZ) emission, reception antenna also are sealed in the drill collar, can't directly link to each other with the external world, so be difficult to realize intend with drill jig the signal conversion (extract and launch) of checkout equipment.To how effectively checking the service behaviour of the emission of resistivity logging while drilling logging instrument, reception antenna, also there is not better technological means at present.
Summary of the invention
Technical problem to be solved by this invention is to overcome to be difficult at present the emission of resistivity logging while drilling logging instrument, reception antenna are carried out the deficiency that service behaviour detects.
In order to solve the problems of the technologies described above, the invention provides a kind of antenna coupler that is coupled with the resistivity logging while drilling logging instrument, comprise coupling coil, coil brace and cable joint, wherein:
Described coupling coil is fixed on the drill collar that described resistivity logging while drilling logging instrument is installed by described coil brace, is set to resistivity logging while drilling instrument transmitting antenna signal, standard phase difference signal and standard amplitude fading signal coupling to the reception antenna of resistivity logging while drilling logging instrument; The described cable joint that is used for the connection transmission cable links to each other with described coupling coil.
Preferably, coupling coil comprises the magnetic core with opening and the magnetic core coil that is wound on the magnetic core.
Preferably, the position of the described magnetic core coil of coiling is relative on described opening and the described magnetic core.
Preferably, described magnetic core coil comprises a plurality of receiving coils of different investigation depths and a plurality of transmitting coils of diverse location; The transmitting antenna of described a plurality of receiving coil and described resistivity logging while drilling logging instrument is coupled, and the reception antenna of described a plurality of transmitting coils and described resistivity logging while drilling logging instrument is coupled.
Preferably, the described coupling coil centre frequency that is fixed on dark transmitting antenna is 1 megahertz; In being fixed on, shallow, super shallow described coupling coil centre frequency is 2 megahertzes; The described coupling coil bandwidth that is fixed on far away, nearly reception antenna is 2 megahertzes.
Preferably, between each described transmitting coil, between each described receiving coil and between described transmitting coil and the receiving coil, intersect and disturb all less than 1%.
Preferably, transmitting antenna and the reception antenna of described coil brace and described resistivity logging while drilling logging instrument remain on same plane.
Preferably, described coil brace comprises the nylon bracket of two semicircle annulars, and the described nylon bracket of two semicircular ring is combined bolt and the hinge that forms an annulus.
Compared with prior art, the application's embodiment can be used to detect the service behaviour of the emission of resistivity logging while drilling logging instrument, reception antenna, overcomes the defective of prior art.The application's embodiment utilizes electromagnetic coupled between coil and the antenna according to the Electromagnetic Wave Propagation principle, has realized the conversion of signal between simulation detection equipment and the instrument.The application's embodiment can apply to and replace the pond that the resistivity logging while drilling logging instrument is carried out in the equipment of analog scaling.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and consists of the part of specification, is used from the application's embodiment one and explains technical scheme of the present invention, does not consist of the restriction to technical solution of the present invention.
Fig. 1 is the organigram of the application's the antenna coupler that is coupled with the resistivity logging while drilling logging instrument.
Fig. 2 is the organigram of the coupling coil in the embodiment of the present application.
Fig. 3 is that the transmitting antenna of resistivity logging while drilling logging instrument is coupled in the embodiment of the present application the waveform schematic diagram of signal on the receiving coil.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.Each feature among the embodiment of the present application and the embodiment mutually combining under the prerequisite of not conflicting mutually is all within protection scope of the present invention.
The antenna coupler that is coupled with the resistivity logging while drilling logging instrument of the embodiment of the present application mainly comprises coupling coil 3, coil brace and cable joint 4 etc. as shown in Figure 1.
Among the application's the embodiment, to the coupling coil 3 that transmitting antenna and the reception antenna of resistivity logging while drilling logging instrument is coupled, mainly include magnetic core coil 6 and have the magnetic core 7 (among the figure to identify 8 openings that magnetic core 7 is shown) of opening.
Among the application's the embodiment, magnetic core coil is according to signal frequency and amplitude, and the difference of winding method, comprise altogether dark, in, a plurality of receiving coils of shallow and super different investigation depths such as shallow, and a plurality of transmitting coils of the diverse location such as far away, near.
Among the application's the embodiment, magnetic core coil adopts the simultaneously coiling of enamelled wire of 16 same diameter, guarantees the sensitivity of coupled signal.
The coupling coil centre frequency that magnetic core coil assurance among the application's the embodiment is fixed on dark transmitting antenna is 1,000,000 (M) hertz, in being fixed on, shallow, super shallow coupling coil centre frequency is the 2M hertz, the coupling coil bandwidth that is fixed on far away, nearly reception antenna is the 2M hertz.
Among the application's the embodiment, receiving coil includes four kinds of Td, Tm, Ts, Tx, and transmitting coil includes two kinds of Rn, Rf.
Magnetic core coil among the application's the embodiment, corresponding one by one with the antenna of resistivity logging while drilling logging instrument, it is certain that relative position keeps.Coil Td is with after the coaxial cable that is connected connects, and resonance frequency is 1 megahertz (MHZ); Coil Tm, Ts, Tx and after coaxial cable was connected, resonance frequency was 2MHZ; Coil Rn, Rf are with after coaxial cable is connected, and resonance frequency is wideband 1-2MHZ.Among the application's the embodiment, because coupling coil can only be sensitive to electromagnetic field response among a small circle separately, disturb less than 1% so can guarantee the intersection between each magnetic core coil; Also be between each transmitting coil, between each receiving coil and between transmitting coil and the receiving coil, intersect and disturb all less than 1%.
Among the application's the embodiment, coil brace mainly comprises the nylon bracket 1 of two semicircle annulars, and the nylon bracket 1 of two semicircular ring is combined bolt 5 and the hinge 2 that forms an annulus.Coil brace has directivity, remains on same plane with transmitting antenna and the reception antenna of resistivity logging while drilling instrument, guarantees the most sensitivity of the self-corresponding aerial signal coupling of coupling coil and each, and its all parts all adopt non-magnetic material to process.
Coupling coil 3 is by coil brace, is fixed on the drill collar that the resistivity logging while drilling logging instrument is installed by predetermined distance with the antenna of resistivity logging while drilling logging instrument.By coil brace coupling coil 3 is fixedly mounted on the drill collar, so that the relative position between coupling coil 3 and the resistivity logging while drilling logging instrument transmitting antenna keeps fixing, has guaranteed the accuracy and the reliability that detect.
The signal that four transmitting antennas of resistivity logging while drilling logging instrument are launched is transferred to by signal-transmitting cable and carries out visualization processing on the simulation detection equipment panel after receiving by the receiving coil in the antenna coupler.
Among the application's the embodiment, coil brace can be installed with instrument antenna part tight fit, can guarantee the relative position that coil 3 and instrument antenna are fixing.
The interference that intersects is the key technical indexes of receiving coil and instrument aerial signal coupled modes.If exist between the receiving coil in instrument transmitting antenna and the antenna coupler and intersect interference, will affect accuracy of detection, simulation detection equipment can't work in the time of seriously, so need to do the intersection disturbed test to the coil coupling device.
As shown in Figure 3, when utilizing the application's embodiment to intersect the test of disturbing, from per pass two adjacent groups waveform, not have to find to have the situation generation of disturbing between the phase neighboring trace, prove that the application's embodiment can guarantee accuracy of detection.
Coil brace is annular opening, and main fixed coupling coil so that the emission of resistivity logging while drilling logging instrument and reception antenna and coupling coil remain on same plane, guarantees that the coupled signal amplitude is maximum.The employing non-magnetic material is made, and avoids the interference to signal.
The application's embodiment is according to operating position, can be effectively transmitting antenna and the reception antenna of resistivity logging while drilling logging instrument be coupled, and avoids simultaneously interference each other.
Coupling coil in the embodiment of the present application can detect and judges whether the resistivity logging while drilling instrument is working properly.Coupling coil in the embodiment of the present application can be used to pick up the signal that instrument is launched when ground handling.After again the signal of instrument emission being processed, can again be coupled to the reception antenna of instrument.
The application's embodiment has realized that according to the method for Electromagnetic Wave Propagation principle employing electromagnetic coupled the resistivity logging while drilling logging instrument is launched, the detection of the service behaviour of reception antenna.The application's embodiment need not directly to contact with the resistivity logging while drilling logging instrument, can be easily and being coupled of the emission of resistivity logging while drilling logging instrument, reception antenna signal, and be convenient to operation and implement, reduced the labour intensity of operation, improved detection efficiency.
Although the disclosed execution mode of the present invention as above, the execution mode that described content only adopts for ease of understanding the present invention is not to limit the present invention.Those of skill in the art under any the present invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can carry out any modification and variation in form and the details implemented; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.
Claims (8)
1. antenna coupler that is coupled with the resistivity logging while drilling logging instrument, wherein, this antenna coupler comprises coupling coil, coil brace and cable joint, wherein:
Described coupling coil is fixed on the drill collar that described resistivity logging while drilling logging instrument is installed by described coil brace, is set to resistivity logging while drilling instrument transmitting antenna signal, standard phase difference signal and standard amplitude fading signal coupling to the reception antenna of resistivity logging while drilling logging instrument;
Described cable joint links to each other with described coupling coil, is set to connect transmission cable.
2. antenna coupler according to claim 1, wherein,
Coupling coil comprises the magnetic core with opening and the magnetic core coil that is wound on the magnetic core.
3. antenna coupler according to claim 2, wherein,
The position of the described magnetic core coil of coiling is relative on described opening and the described magnetic core.
4. antenna coupler according to claim 3, wherein,
Described magnetic core coil comprises a plurality of receiving coils of different investigation depths and a plurality of transmitting coils of diverse location; The transmitting antenna of described a plurality of receiving coil and described resistivity logging while drilling logging instrument is coupled, and the reception antenna of described a plurality of transmitting coils and described resistivity logging while drilling logging instrument is coupled.
5. antenna coupler according to claim 4, wherein,
The described coupling coil centre frequency that is fixed on dark transmitting antenna is 1 megahertz;
In being fixed on, shallow, super shallow described coupling coil centre frequency is 2 megahertzes;
The described coupling coil bandwidth that is fixed on far away, nearly reception antenna is 2 megahertzes.
6. antenna coupler according to claim 4, wherein,
Between each described transmitting coil, between each described receiving coil and between described transmitting coil and the receiving coil, intersect and disturb all less than 1%.
7. antenna coupler according to claim 1, wherein,
Transmitting antenna and the reception antenna of described coil brace and described resistivity logging while drilling logging instrument remain on same plane.
8. antenna coupler according to claim 7, wherein,
Described coil brace comprises the nylon bracket of two semicircle annulars, and the described nylon bracket of two semicircular ring is combined bolt and the hinge that forms an annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506795.4A CN102946001B (en) | 2012-11-30 | 2012-11-30 | Antenna coupler coupled with logging-while-drilling resistivity apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506795.4A CN102946001B (en) | 2012-11-30 | 2012-11-30 | Antenna coupler coupled with logging-while-drilling resistivity apparatus |
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| CN102946001A true CN102946001A (en) | 2013-02-27 |
| CN102946001B CN102946001B (en) | 2015-04-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465490A (en) * | 2013-09-12 | 2015-03-25 | 建宇(上海)石油科技有限公司 | Annular wire threading hole processing method of resistivity while drilling collar |
| CN104564046A (en) * | 2014-12-31 | 2015-04-29 | 贝兹维仪器(苏州)有限公司 | Stratum simulation coil and method of measuring LWD precision by using the same |
| CN109521386A (en) * | 2018-12-10 | 2019-03-26 | 中国海洋石油集团有限公司 | A kind of insulating panel and low-resistance signal generation apparatus |
| CN109952519A (en) * | 2016-10-31 | 2019-06-28 | 韩尉善 | By E antenna applications in resistivity well logging tool |
| CN111509354A (en) * | 2020-04-26 | 2020-08-07 | 中国海洋石油集团有限公司 | Wireless signal transmission antenna of while-drilling instrument |
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| CN1434926A (en) * | 1999-07-09 | 2003-08-06 | 霍尼韦尔国际公司 | Propagating wave earth formation resistivity measuring arrangement |
| CN1979221A (en) * | 2005-11-30 | 2007-06-13 | Kjt企业公司 | System for measuring earth formation resistivity through an electrically conductive well bore casing |
| CN1989424A (en) * | 2004-06-15 | 2007-06-27 | 贝克休斯公司 | Method and apparatus for internal calibration in induction logging instruments |
| US20070257812A1 (en) * | 2006-04-28 | 2007-11-08 | Halliburton Energy Services, Inc. | Inductive Coupling System |
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2012
- 2012-11-30 CN CN201210506795.4A patent/CN102946001B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434926A (en) * | 1999-07-09 | 2003-08-06 | 霍尼韦尔国际公司 | Propagating wave earth formation resistivity measuring arrangement |
| CN1989424A (en) * | 2004-06-15 | 2007-06-27 | 贝克休斯公司 | Method and apparatus for internal calibration in induction logging instruments |
| CN1979221A (en) * | 2005-11-30 | 2007-06-13 | Kjt企业公司 | System for measuring earth formation resistivity through an electrically conductive well bore casing |
| US20070257812A1 (en) * | 2006-04-28 | 2007-11-08 | Halliburton Energy Services, Inc. | Inductive Coupling System |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465490A (en) * | 2013-09-12 | 2015-03-25 | 建宇(上海)石油科技有限公司 | Annular wire threading hole processing method of resistivity while drilling collar |
| CN104564046A (en) * | 2014-12-31 | 2015-04-29 | 贝兹维仪器(苏州)有限公司 | Stratum simulation coil and method of measuring LWD precision by using the same |
| 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 |
| CN109521386A (en) * | 2018-12-10 | 2019-03-26 | 中国海洋石油集团有限公司 | A kind of insulating panel and low-resistance signal generation apparatus |
| CN109521386B (en) * | 2018-12-10 | 2021-01-29 | 中国海洋石油集团有限公司 | Insulating panel and low-resistance signal generating device |
| CN111509354A (en) * | 2020-04-26 | 2020-08-07 | 中国海洋石油集团有限公司 | Wireless signal transmission antenna of while-drilling instrument |
| CN111509354B (en) * | 2020-04-26 | 2021-09-10 | 中国海洋石油集团有限公司 | Wireless signal transmission antenna of while-drilling instrument |
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| CN102946001B (en) | 2015-04-15 |
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