CN102606148A - Response testing device for electromagnetic wave resistivity logging-while-drilling tool - Google Patents
Response testing device for electromagnetic wave resistivity logging-while-drilling tool Download PDFInfo
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- CN102606148A CN102606148A CN2012100767160A CN201210076716A CN102606148A CN 102606148 A CN102606148 A CN 102606148A CN 2012100767160 A CN2012100767160 A CN 2012100767160A CN 201210076716 A CN201210076716 A CN 201210076716A CN 102606148 A CN102606148 A CN 102606148A
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Abstract
The invention relates to a testing device for testing response of an electromagnetic wave resistivity logging-while-drilling tool in a room, in particular to a response testing device for an electromagnetic wave resistivity logging-while-drilling tool, which comprises a disk insulating support. The diameter of a central hole of the disk insulating support is matched with that of the electromagnetic wave resistivity logging-while-drilling tool, at least one open circular metal ring (2) is arranged on a support disk surface of the disk insulating support and gradually distributed outwards around the support disk surface of the disk insulating support, and a quick joint (6) is led out of an end of a notch of each circular metal ring and additionally provided with n resistance-capacitance modules (7) in a matched manner, wherein n is a natural number. The testing device is simple in structure and convenient in use, and can guarantee outdoor scale test for the electromagnetic wave resistivity logging-while-drilling tool to a certain degree.
Description
Technical field
The present invention relates to a kind of at indoor experimental rig, promptly a kind of with boring electromagnetic resistivity logging instrument response verifying attachment to testing with the response of brill electromagnetic resistivity logging instrument.
Background technology
In oil exploration, along with the demand of land horizontal well and increase of high angle hole drilling effort and offshore drilling, the normal cable well logging can not have been satisfied the needs of logging technique, so logging while drilling technology has obtained very fast development.It can be realized drilling well and log well and carry out simultaneously; Be that logger is installed in the position near drill bit; Do not receive on the stratum measure under the condition of obvious intrusion and pollution and the traditional cable log facies relatively, have that real-time is good, the logging accuracy advantages of higher.With boring the electromagnetic resistivity logger is one of instrument the most frequently used in the well logging during; The resistivity information that its phase difference and amplitude through measuring induced electromotive force on two receiving coils recently obtains the stratum; Because the resistivity of oil reservoir is higher; Therefore it can the effective recognition oil reservoir, and also has and can instruct the drill bit geosteering function that level is crept in oil reservoir.It is thus clear that development has very important practical significance with boring the electromagnetic resistivity logger, can strengthen the strength of China in the well logging during field, helps the oil field to find more oil and gas reservoir, alleviates petroleum resources situation in short supply.China adopts imitated method mostly in this kind of development instrument, seldom grasp core technology, though can accelerate development speed like this, and be unfavorable for the real development of China's logging technique.In order to grasp core technology, we begin from fundamental research, have developed to have independent intellectual property right with boring the electromagnetic resistivity logger.In the principle prototype development stage; Need test to the response of this instrument; But because all very big with the quality and the volume that bore the electromagnetic resistivity logging instrument, carrying is got up very inconvenient, if when outdoor scale, just find the response pattern mistake of instrument by the time; Can delay a lot of times undoubtedly, and need pay a lot of extra work amounts and produce many unnecessary troubles.Therefore,, be implemented in indoor check, then can certain guarantee be provided for next step carries out outdoor scale test to responding with brill electromagnetic resistivity logging instrument if design a kind of device to carrying out indoor check with the response of brill electromagnetic resistivity logging instrument.
Summary of the invention
The present invention is directed to the prior art deficiency, propose a kind of device carrying out indoor check with the response of brill electromagnetic resistivity logging instrument, simple in structure, easy to use, can certain guarantee be provided for carrying out outdoor scale test with brill electromagnetic resistivity logging instrument.
The technical scheme that the present invention adopted:
A kind of with boring electromagnetic resistivity logging instrument response verifying attachment; Comprise a disc type insulation support body; The center-hole diameter of said disc type insulation support body be complementary with the diameter that bores the electromagnetic resistivity logging instrument; On the support card of said disc type insulation support body, be provided with the circular metal ring (2) of an open circuit at least, said circular metal ring outwards distributes around the support card center of disc type insulation support body gradually, draws fast joint (6) from the gap end of said circular metal ring (2); Be provided with n capacitance-resistance module (7) with said fast joint (6) coupling in addition, n is a natural number.
Described with boring electromagnetic resistivity logging instrument response verifying attachment; The capacitance-resistance module comprises the connector of being connected the back resistance-capacitance circuit of forming with p parallel resistor and being mated with aforementioned fast joint of drawing from the gap end of circular metal ring by the electric capacity of m parallel connection; Said resistance-capacitance circuit is connected in series between two fast joints of connector, and m and p are natural number.
Described with boring electromagnetic resistivity logging instrument response verifying attachment; The disc type insulation support body comprises a supporting disk (1) and a flange seat; Said supporting disk (1) and flange seat are fastenedly connected, the opening diameter of flange seat with boring electromagnetic resistivity logging instrument diameter coupling.
Described with boring electromagnetic resistivity logging instrument response verifying attachment; The disc type insulation support body comprises supporting disk (1) and rotating cylinder (8); Said rotating cylinder (8) coupling is nested to be installed in supporting disk (1) centre bore of said disc type insulation support body; Plane, supporting disk (1) place is vertical with the center line of said rotating cylinder (8), the aperture of said rotating cylinder (8) with mate with boring electromagnetic resistivity logging instrument diameter.
The present invention responds the operating principle of verifying attachment with brill electromagnetic resistivity logging instrument:
With metal ring and the coaxial placement of instrument (with boring the electromagnetic resistivity logging instrument); And be placed near the receiving coil; When instrument is worked; Transmitting coil can produce induced electromotive force on metal ring, the different resistance of connecting at metal ring open circuit two ends will produce different electric currents in metal ring, and this electric current will produce signal on receiving coil.Perhaps move by side to opposite side in the middle of when instrument response is tested, can metal ring being placed on two receiving coils from one of receiving coil; Obtain a series of response through changing series resistance again; And, realize indoor check purpose to instrument response with measured value and calculated value contrast.
Beneficial effect of the present invention:
1, the present invention has realized in indoor check to responding with brill electromagnetic resistivity logging instrument with very simple mode with brill electromagnetic resistivity logging instrument response verifying attachment, for next step carries out outdoor scale test certain guarantee is provided.Because the quality of instrument and volume are all very big, carrying is got up very inconvenient, and the present invention can in time test to the response pattern of instrument indoor, can avoid many unnecessary troubles, improves the efficient of instrument room's EXT scale, reduces workload.
2, the present invention is with boring electromagnetic resistivity logging instrument response verifying attachment, and simple in structure, cost is low, and is easy to use, implements easily, can be desirable reach indoor check purpose to instrument response.
Description of drawings
Fig. 1: the present invention is with boring electromagnetic resistivity logging instrument response verifying attachment structural representation;
Fig. 2: the present invention is with boring electromagnetic resistivity logging instrument response verifying attachment insulation support body lateral view;
Fig. 3: the present invention is with a kind of embodiment schematic diagram that bores electromagnetic resistivity logging instrument response verifying attachment capacitance-resistance module;
Fig. 4: the present invention is with boring electromagnetic resistivity logging instrument response verifying attachment user mode figure;
Fig. 5～Figure 28: (what be numbered odd number is not have tuning result of calculation to the response curve of instrument under different metallic ring structure size and the series resistance situation; Be numbered even number for tuning result of calculation, computational methods adopt the dyadic Green's function method in the stratified medium radially).
The specific embodiment
Embodiment one: referring to Fig. 1, Fig. 2; The present invention is with boring electromagnetic resistivity logging instrument response verifying attachment; Comprise a disc type insulation support body, said disc type insulation support body center-hole diameter be complementary with the diameter that bores the electromagnetic resistivity logging instrument, on the support card of said disc type insulation support body, be provided with the circular metal ring 2 of an open circuit at least; Said circular metal ring 2 outwards distributes around the support card center of disc type insulation support body gradually; Draw fast joint 6 from the gap end of said circular metal ring 2, be provided with n capacitance-resistance module 7 with said fast joint 6 couplings in addition, n is a natural number.
1 is supporting disk among the figure.
Embodiment two: referring to Fig. 1～Fig. 3; Present embodiment with bore electromagnetic resistivity logging instrument response verifying attachment and embodiment one different be: the structure that further illustrates capacitance-resistance module 7; Said capacitance-resistance module comprises the connector of being connected the back resistance-capacitance circuit of forming with p parallel resistor and being mated with the fast joint of drawing from the gap end of circular metal ring 26 by the electric capacity of m parallel connection, and said resistance-capacitance circuit is connected in series between two fast joints of connector.M and p are natural number.The present invention is provided with a plurality of capacitance-resistance modules, and Fig. 3 provides a kind of embodiment of capacitance-resistance module.
Embodiment three: referring to Fig. 1, Fig. 2; Present embodiment with boring electromagnetic resistivity logging instrument response verifying attachment; The disc type insulation support body comprises supporting disk 1 and rotating cylinder 8; Said rotating cylinder 8 couplings are nested to be installed in the centre bore of said disc type insulation support body supporting disk 1, and plane, supporting disk 1 place is vertical with the center line of rotating cylinder 8, the aperture of rotating cylinder 8 with mate with boring electromagnetic resistivity logging instrument diameter.
Embodiment four: referring to Fig. 1; Present embodiment with boring electromagnetic resistivity logging instrument response verifying attachment; Different with embodiment three is: the rotating disc type insulation support body comprises a supporting disk 1 and a flange seat; Said supporting disk 1 is fastenedly connected with flange seat, the opening diameter of said flange seat with boring electromagnetic resistivity logging instrument diameter coupling.
Fig. 4 responds the verifying attachment working state schematic representation for the present invention with boring the electromagnetic resistivity logging instrument.Among the figure, 1 is supporting disk (frame), and 2 is metal ring, and 3 is the transmitting coil of instrument, and 4,5 is the receiving coil of instrument.
1), as shown in the figure logging instrument is responded verifying attachment and the coaxial placement of instrument, the position is placed on the mid point of two receiving coils, and can near two receiving coils, move.
2), transmitting coil 3 emission electromagnetic waves; Electromagnetic wave can produce induced electromotive force on two receiving coils 4,5 and metal ring 2; The resistance of the certain resistance of 2 series connection then can be produced induced-current on 2; This induced-current can produce additional induced electromotive force again on two receiving coils 4 and 5, the induced electromotive force on such two receiving coils is exactly transmitting coil 3 sums that produce with metal ring 2 that produce.
3), change and to be connected on the resistance on 2, then the induced electricity on 2 fails to be convened for lack of a quorum and changes thereupon, the induced electromotive force on the receiving coil 4,5 also changes thereupon.
4), under the certain situation of the resistance of connecting on the metal ring, the position of the modifier then induced-current on 2 also can change thereupon, the induced electromotive force on the corresponding receiving coil 4,5 also changes thereupon.
5), the phase difference and the amplitude ratio of electromotive force on two receiving coils 4,5 when Theoretical Calculation go out to change the resistance that is connected on 2 or modifier position, and as a reference, compare with the data of actual measurement with these data, realize purpose to the instrument response check.
Of the present invention with boring electromagnetic resistivity logging instrument response verifying attachment; Choosing of the physical dimension of metal ring and series resistance according to being; The response curve of instrument when going out metal ring change in location, radius change with the different resistance of series connection through Theoretical Calculation; Consider the measurement category of actual instrumentation response, and obviously choose the size of metal ring and the scope of series resistance as principle with the response curve variation.With the frequency is 2MHz; Spacing be 20in, 30in, 46in be example with boring electromagnetic wave resistivity instrument; We have carried out a large amount of numerical simulations; During calculating metal ring has been placed on the mid point of two receiving coils, and considered the impedance of metal ring self, taked the induction reactance of metal ring self is carried out tuningly calculating with the untuned dual mode.
Fig. 5～28th, the result of calculation of all situations.The numerical computation method that calculate to adopt is the dyadic Green's function method in the stratified medium radially.The method adopts the recursive matrix method to calculate.According to cylindrical layer at the interface the condition of continuity in electric field and magnetic field obtain confirming the matrix equation group of undetermined coefficient and through the recurrence method rapid solving.Only need to change source item positions of elements in the equation group, just can obtain easily when source point with a some Green function during at random layer, form succinctly, be easy to programme.Abscissa among the figure is the resistance of series connection, and ordinate is two phase difference and responses of amplitude ratio between receiving coil, the response the when curve of different colours and pattern is represented different metal ring radius.
Observe to find, the excursion when the amplitude of variation scope of each sets of curves of tuning back will be apparently higher than untuned, therefore, suggestion is carried out tuning when actual measurement to metal ring, remove induction reactance.In addition, the metal ring radius that the maximum curve of amplitude of variation scope is corresponding among each figure of tuning back is basically all in the 0.3m-0.5m scope, so select the metal ring of radius in this scope during the suggestion actual measurement for use.Select the resistance variations scope then as the case may be again.The scope of application of this metal ring be frequency at 400KHz～2MHz, spacing in 20in～46in scope with boring electromagnetic wave resistivity instrument.Certainly, the method analysis that can utilize this patent to provide to the electromagnetic wave resistivity instrument of other frequencies and spacing provides the metal ring radius that is suitable for this instrument and the scope of series resistance.
Of the present invention with boring electromagnetic resistivity logging instrument response verifying attachment; The selection principle of material is: the circular metal ring except open circuit in the whole experiment device is the metallic conductor; Remaining annex and bracing frame are electrical quantity and the approaching material of air, like glass fiber reinforced plastic etc.
Claims (4)
1. one kind with boring electromagnetic resistivity logging instrument response verifying attachment; Comprise a disc type insulation support body; The center-hole diameter of said disc type insulation support body be complementary with the diameter that bores the electromagnetic resistivity logging instrument; It is characterized in that: on the support card of said disc type insulation support body, be provided with the circular metal ring (2) of an open circuit at least, said circular metal ring outwards distributes around the support card center of disc type insulation support body gradually, draws fast joint (6) from the gap end of said circular metal ring (2); Be provided with n capacitance-resistance module (7) with said fast joint (6) coupling in addition, n is a natural number.
2. according to claim 1 with boring electromagnetic resistivity logging instrument response verifying attachment; It is characterized in that: said capacitance-resistance module comprises the connector of being connected the back resistance-capacitance circuit of forming with p parallel resistor and being mated with aforementioned fast joint (6) of drawing from the gap end of circular metal ring (2) by the electric capacity of m parallel connection; Said resistance-capacitance circuit is connected in series between two fast joints of connector, and m and p are natural number.
3. according to claim 1 and 2 with boring electromagnetic resistivity logging instrument response verifying attachment; It is characterized in that: said disc type insulation support body comprises a supporting disk (1) and a flange seat; Said supporting disk (1) and flange seat are fastenedly connected, the opening diameter of flange seat with boring electromagnetic resistivity logging instrument diameter coupling.
4. according to claim 1 and 2 with boring electromagnetic resistivity logging instrument response verifying attachment; It is characterized in that: said disc type insulation support body comprises supporting disk (1) and rotating cylinder (8); Said rotating cylinder (8) coupling is nested to be installed in supporting disk (1) centre bore of said disc type insulation support body; Plane, supporting disk (1) place is vertical with the center line of said rotating cylinder (8), the aperture of said rotating cylinder (8) with mate with boring electromagnetic resistivity logging instrument diameter.
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| CN2012100767160A CN102606148A (en) | 2012-03-22 | 2012-03-22 | Response testing device for electromagnetic wave resistivity logging-while-drilling tool |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865062A (en) * | 2012-09-27 | 2013-01-09 | 中国石油天然气集团公司 | Physical analog device for electrical logging detector entity built by ultrafiltration |
| CN103015970A (en) * | 2012-11-30 | 2013-04-03 | 中国海洋石油总公司 | Simulated detection equipment for measurement-while-drilling resistivity logging instrument |
| CN104122603A (en) * | 2013-04-24 | 2014-10-29 | 中国石油集团长城钻探工程有限公司 | Method for calibrating coil system in three-dimensional array induction logging instrument |
| 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 |
| CN109424358A (en) * | 2017-08-24 | 2019-03-05 | 中国石油化工股份有限公司 | High-power resistivity logging while drilling sender unit |
| CN111878057A (en) * | 2020-07-10 | 2020-11-03 | 中国石油天然气集团有限公司 | Azimuth electromagnetic wave resistivity imaging logging instrument azimuth detection performance calibration device |
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| US5293128A (en) * | 1992-07-02 | 1994-03-08 | Western Atlas International, Inc. | Method and apparatus for calibrating the output measurement of a logging tool as a function of earth formation parameters |
| CN201367895Y (en) * | 2009-02-10 | 2009-12-23 | 山东胜利伟业石油工程技术服务有限公司 | Multi-phase compensating drilling electric resistivity well measuring apparatus |
| CN201908644U (en) * | 2010-10-19 | 2011-07-27 | 吕爱英 | Optimized short-array induction logger |
| CN202500547U (en) * | 2012-03-22 | 2012-10-24 | 中国电子科技集团公司第二十二研究所 | Respondence checking device of electromagnetic wave resistivity well logger during drilling |
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Patent Citations (4)
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| US5293128A (en) * | 1992-07-02 | 1994-03-08 | Western Atlas International, Inc. | Method and apparatus for calibrating the output measurement of a logging tool as a function of earth formation parameters |
| CN201367895Y (en) * | 2009-02-10 | 2009-12-23 | 山东胜利伟业石油工程技术服务有限公司 | Multi-phase compensating drilling electric resistivity well measuring apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865062A (en) * | 2012-09-27 | 2013-01-09 | 中国石油天然气集团公司 | Physical analog device for electrical logging detector entity built by ultrafiltration |
| CN102865062B (en) * | 2012-09-27 | 2015-01-07 | 中国石油天然气集团公司 | Physical analog device for electrical logging detector entity built by ultrafiltration |
| CN103015970A (en) * | 2012-11-30 | 2013-04-03 | 中国海洋石油总公司 | Simulated detection equipment for measurement-while-drilling resistivity logging instrument |
| CN104122603A (en) * | 2013-04-24 | 2014-10-29 | 中国石油集团长城钻探工程有限公司 | Method for calibrating coil system in three-dimensional array induction logging instrument |
| CN104122603B (en) * | 2013-04-24 | 2018-02-23 | 中国石油集团长城钻探工程有限公司 | The method calibrated to the coil array in cubical array induction logging instrument |
| 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 |
| CN104564046B (en) * | 2014-12-31 | 2018-03-13 | 中国石油集团长城钻探工程有限公司 | A kind of stratum former-wound coil and the method with its measurement LWD precision |
| CN109424358A (en) * | 2017-08-24 | 2019-03-05 | 中国石油化工股份有限公司 | High-power resistivity logging while drilling sender unit |
| CN111878057A (en) * | 2020-07-10 | 2020-11-03 | 中国石油天然气集团有限公司 | Azimuth electromagnetic wave resistivity imaging logging instrument azimuth detection performance calibration device |
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Application publication date: 20120725 |