CN104747164A - Ground testing method for while-drilling orientation electromagnetic wave logging tool - Google Patents
Ground testing method for while-drilling orientation electromagnetic wave logging tool Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 18
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
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Abstract
The invention discloses a ground testing method for a while-drilling orientation electromagnetic wave logging tool. An experimental device serves as a driving mechanism, the driving mechanism is established on the basis of the while-drilling orientation electromagnetic wave logging tool which is supported by a stage support capable of adjusting angles, two medium interfaces with different electric conductivities are arranged under the while-drilling orientation electromagnetic wave logging tool, and the driving mechanism is matched with a metal short joint of the while-drilling orientation electromagnetic wave logging tool in a rotated and driven mode. The method is to stimulate the while-drilling orientation electromagnetic wave tool of all kinds of antenna combinations in the experimental device, the signal characteristic of an orientation electromagnetic wave tool with different coil spans and different working frequencies and the calculating method for the layer interface orientation and the dip angle are tested and verified under the interface circumstance when the electric conductivity difference is existed, the validity of a signal collecting and treating method and all kinds of compensating measuring methods and effects can be verified under a rotating mode, and an important guiding action for the design and manufacture of orientating while drilling apparatuses and the geosteering application is obtained.
Description
Technical field
The present invention relates to a kind of ground experiment method with boring orientation electromagnetic wave logger in oil, gas drilling or logging technique field, being specially adapted to as geologic steering drilling system provides design considerations and verification experimental verification with the design research and development of boring orientation electromagnetic wave instrument.
Technical background
In oil field prospecting and development process, need to measure stratum geological information and engineering parameter.Along with the continuous progress of exploration and development technology, to the accuracy of measurement parameter and diversity requirements more and more higher.Required parameter often comprises ground environment parameter, down-hole equipment position, orientation and drilling environment parameter etc.There are multiple Regular wireline instrument and connector for logging while drilling can provide above parameter at present.Electromagnetic wave resistivity instrument can provide formation resistivity information as the important instrument evaluating formation properties, carrys out formation oiliness and evaluates.Instrument often comprises one or more transmitting and receiving antenna to receive formation induction signal.Different according to employing frequency, be divided into induction motor instrument and electromagnetic wave resistivity instrument.Usually the Amplitude Ratio of receiving coil or phase difference is adopted to be converted to formation resistivity information for brill electromagnetic wave resistivity instrument.Orientation electromagnetic resistivity is except for being mainly used to geosteering except formation evaluation.Possess the too little due to investigation depth with brill instrument of azimuth discrimination function at present, limit its application in geosteering.Then overcome the little defect of investigation depth with brill orientation electromagnetic wave resistivity instrument, better can be applied to geosteering.
The International Petroleum Engineering Project service companies such as current Schlumberger, Haliburton, Bake Hughes in succession disclose oneself and are proposed with brill orientation electromagnetic wave instrument based on this in multi-components, the patented technology (No.6777940, No.7038455, No.7557580, No.6181138, No.20050140373, No.7375530, No.7483793 etc.) of multi-coil in, multi-frequency instrument, obtain a wide range of applications and achieve good effect in formation evaluation and geosteering.
Domestic substantially blank with boring in the manufacturing and designing of orientation electromagnetic wave instrument, corresponding fundamental research also relatively lags behind, as the important tool of geosteering, its test and test method are also the important guarantees that instrument is is successfully researched and developed and applied, due to the particularity with brill orientation electromagnetic wave instrument response, must carry out testing and testing in the environment that there is medium interface, therefore the test well of conventional logger and test pit can not use.
Summary of the invention
The object of the invention is the problem for prior art, the INTERFACE MODEL that a kind of energy constructs various situation convenient and simplely is proposed, for theoretical validation, instruct the ground experiment method with brill orientation electromagnetic wave logger of the correctness of Instrument Design and verification msg acquisition and processing method.
Technical scheme of the present invention comprises:
With a ground experiment method of boring orientation electromagnetic wave logger, antenna, metal pipe nipple, azimuth counter, power supply and signal processing system should be comprised with brill orientation electromagnetic wave logger.The described antenna with boring orientation electromagnetic wave logger has two axial antennas and two horizontal antennas at least, the magnetic moment direction of axial antenna and the dead in line of metal pipe nipple, the magnetic moment direction of horizontal antenna and metal pipe nipple axes normal, axial antenna splits in the both sides of horizontal antenna, horizontal antenna rotates a circle to be divided into and is no less than four sectors, each sector is connected with signal processing apparatus respectively, axial and horizontal antenna to be arranged on metal pipe nipple and to form along metal pipe nipple and slides and the cooperation that is rotatably connected, and antenna transmission signal frequency range is between 100kHz-4MHz.This test method is based upon with on brill electromagnetic wave logger basis, orientation, to be supported with brill orientation electromagnetic wave logger by the stand of adjustable angle, and arranging by the medium interface of two kinds of different electrical conductivity with below brill orientation electromagnetic wave logger, and with the driving mechanism boring orientation electromagnetic wave logger metal pipe nipple rotary actuation and coordinate.
Test method comprises: metal pipe nipple is placed in air and conducting solution near interface, by adjusting the distance between axial antenna and horizontal antenna, records the Changing Pattern of ZX, ZY, XZ, ZZ electromotive force signal with coil spacing; By changing dielectric conductance rate, record the Changing Pattern of interface electromotive force range signal and both sides, interface electric conductivity difference; By adjustment driving mechanism rotating speed, record the relation of electromotive force signal with antenna azimuth; By adjusting height and the angle of stand, exciting different axial antennas, horizontal antenna, recording the signal amplitude of electromotive force, compensating Comparative result and effect analysis.
Described test method specifically comprises:
(1) after determining the electrical conductivity of medium interface and the distance at antenna and interface, metal pipe nipple is parallel to medium interface, the signal that acquisition and processing reception antenna records, by axial antenna and horizontal tested rotating platform for launching or reception antenna, change axial antenna and horizontal antenna distance, angle, the signal that acquisition and processing reception antenna records, records the Changing Pattern of ZX, ZY, XZ, ZZ electromotive force signal with coil spacing, test measurement result and theoretical modeling result is analyzed.
(2) using axial antenna as transmitting antenna, horizontal antenna is as reception antenna, determine distance and the operating frequency of axial antenna and horizontal antenna, metal pipe nipple is parallel with medium interface, the height of adjustment metal pipe nipple and medium interface, the signal that acquisition and processing reception antenna records, record the Changing Pattern of signal with interface distance, change dielectric conductance rate, repeat above measurement, record the Changing Pattern of interface electromotive force range signal and both sides, interface electric conductivity difference.
(3) using axial antenna as transmitting antenna, horizontal antenna is as reception antenna, determine distance and the operating frequency of antenna and antenna, metal pipe nipple is parallel with interface, adjustment driving mechanism rotating speed, metal pipe nipple is divided into point sector of more than four for one week, Signal sampling and processing signal is carried out in point sector, by azimuthal measurement apparatus Real-time Collection and the sensing orientation recording horizontal antenna, process obtains the relation of electromotive force signal with antenna azimuth, and the azimuth tendency at interface, and contrast with testing circumstance.
(4) using axial antenna as the equidistant horizontal antenna both sides be arranged on as reception antenna of transmitting antenna, determine distance and the operating frequency of transmitting antenna and reception antenna, by adjusting angle and the height of stand, metal pipe nipple and medium interface normal is made to be certain angle, measure that single-shot list is received, two bill receives symmetrical compensation pattern respectively, single-emission and double-receiving pattern and two two signal amplitudes receiving symmetrical compensation mode electrically gesture, and the relation of signal amplitude and interface distance in this certain angle and different angle situation.
Such scheme comprises further:
Concrete mode in step (1) is: after determining the distance at saline solution electrical conductivity and antenna and interface, using axial antenna as transmitting antenna, horizontal antenna is as reception antenna, metal pipe nipple is parallel to interface, the signal that acquisition and processing reception antenna records, mobile transmitting antenna or reception antenna, change coil spacing, continue the signal that acquisition and processing reception antenna records, repeat above step, record the Changing Pattern of ZX electromotive force signal with coil spacing; By horizontal antenna half-twist, repeat above measurement, record ZY electromotive force signal with coil spacing Changing Pattern; Using horizontal antenna as transmitting antenna, axial antenna, as reception antenna, repeats above measurement, records the Changing Pattern of XZ electromotive force signal with coil spacing; Using an axial antenna as transmitting antenna, another axial antenna, as reception antenna, repeats above measuring process, records ZZ electromotive force signal with coil spacing Changing Pattern.
Concrete mode in step (4) is: using two axial antennas as transmitting antenna, a horizontal antenna is as reception antenna, axial antenna is identical with the distance between horizontal antenna, determine distance and the operating frequency of transmitting antenna and reception antenna, by adjusting the angle of stand, the angle of metal pipe nipple and interface normal is made to be 80 °, measure an axial antenna transmission respectively, a horizontal antenna receives, namely the signal amplitude of electromotive force under measurement pattern received by single-shot list, and two axial antenna transmissions, a horizontal antenna receives, namely two bill receives the signal amplitude of electromotive force under symmetrical compensation pattern, keep relative angle constant, change the distance at metal pipe nipple and interface, repeat above measurement, obtain the relation of signal amplitude and interface distance in this relative angle situation, change the angle of metal pipe nipple and interface normal respectively, repeat above-mentioned measuring process, record the relation of signal amplitude and interface distance in different angle situation, using two axial antennas as transmitting antenna, two horizontal antennas are as reception antenna, axial antenna is identical with the distance between horizontal antenna respectively, determine distance and the operating frequency of transmitting antenna and reception antenna, by adjustment stand, make the angle of metal pipe nipple and interface normal for being 80 °, measure an axial antenna transmission respectively, two horizontal antennas receive, i.e. electromotive force signal amplitude under single-emission and double-receiving pattern, and two axial antenna transmissions, two horizontal antennas receive, i.e. electromotive force signal amplitude under two two receipts symmetrical compensation patterns, record the relation of signal amplitude and interface distance in this relative angle situation, change the angle of metal pipe nipple and interface normal respectively, repeat above-mentioned measuring process, obtain the relation of signal amplitude and interface distance in different angle situation.
Adopt saline solution and air as the different two media of electrical conductivity below metal pipe nipple, for the formation of interface.
The supporting base that described stand is made without magnetic dielectric by two is distributed in the below of metal pipe nipple, and supporting base has height regulating mechanism, and supporting base adopts bearing to be connected with metal pipe nipple junction; Medium interface is the interface that brine pit and air combine.
Effect of the present invention is embodied in:
(1) real part and the imaginary part information of signal is obtained by computer Real-time Collection and process; Metal pipe nipple is placed near the different medium interface of two kinds of electrical conductivity, by exciting different antennas as transmitting antenna and reception antenna, measures different electromagnetic field component information.
(2) keep metal pipe nipple and interface distance constant, adjust the distance between transmitting antenna and reception antenna, measure the signal amplitude of different coil spacing.
(3) hold-in winding is apart from constant, changes the distance at metal pipe nipple and interface, signal amplitude in the different interface distance situation of measuring distance, and passes through the distance at signal amplitude size inverting metal pipe nipple and interface, the correctness of checking inversion algorithm and reliability.
(4) metal pipe nipple is connected with rotation linkage, drive metal pipe nipple to rotate, be divided into N (N >=4) individual sector to carry out acquisition counter by one week, process obtains the information such as orientation, interface and relative inclination, and in realistic model contrast, carry out effect analysis.
(5) by changing the electrical conductivity of solution medium, constructing the INTERFACE MODEL with different electric conductivity difference from air dielectric, testing the signal amplitude in different electric conductivity difference situation.
(6) adjust base height poor, realize metal pipe nipple and between interface normal, form different angles, the relative angle of incidence of simulation well.Acquisition and processing signal, by numerical simulation inverting pipe nipple and interface normal angle, and contrasts in realistic model.
(7) by exciting different transmit receive antennas, adjusting the distance between transmit receive antenna, realizing two bill and receiving and two two receipts compensated measurement patterns, compensating Contrast on effect analysis.
More than comprehensive, the present invention is by special tectonic sieving, the INTERFACE MODEL of various situation can be constructed convenient and simplely, particularly for bore orientation electromagnetic wave logger manufacture and design and the checking of data acquisition and processing (DAP) method has unique advantage and application.
Accompanying drawing explanation
Fig. 1 is an example structure schematic diagram of experimental facilities part of the present invention.
Fig. 2 be numerical simulation obtain with the relation schematic diagram boring orientation electromagnetic wave instrument signal amplitude and interface media of both sides electrical conductivity or resistivity.
The structure for amplifying schematic diagram of part of detecting when Fig. 3 is experimental rig metal pipe nipple axis angle different from interface in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, clear, complete description is carried out to technical scheme of the present invention.
Composition graphs 1, the experimental rig antenna package in the present embodiment is containing 4 axial antennas 11,13,15,17, and its coil magnetic moment direction overlaps with metal pipe nipple 3.Containing two horizontal antennas 12,14, its magnetic moment direction and metal pipe nipple 3 axes normal.Distance between all antennas is adjustable, and by nut permanent position.Axial antenna lays respectively at horizontal antenna ends, and all antennas as transmitting antenna or reception antenna, can carry out symmetric emission compensated measurement and asymmetry compensation emission measurement.The tranmitting frequency of coil is adjustable between 100kHz-4MHz.Glass fiber reinforced plastic base 1 and 2 support metal pipe nipple, the distance between adjustable metal pipe nipple 3 and interface 100.Metal pipe nipple one end is connected with rotating driving device 10, and metal pipe nipple 3 can be driven to rotate, for simulating rotation drill collar.Metal pipe nipple one end installation position measurement mechanism 20, the sensing orientation of real-time measuring coil.All measuring-signals are connected with computer (i.e. signal processing system of the present invention) 40 by wire 30, Real-time Collection and processing signals.Metal pipe nipple 3 below liquid is saline solution 200, and electrical conductivity of solution can need adjustment according to test, such saline solution and air as the different two media of electrical conductivity, for the formation of interface.
From formula (1), in homogeneous isotropic medium model, ZX component magnetic field signal is zero, and the measurement therefore carrying out orientation electromagnetic wave instrument must exist the different medium of two kinds of electrical conductivity, measures near interface.
(1)
(2)
Wherein: L is coil spacing;
K
hfor horizontal wave number;
M is coil magnetic moment;
θ is stratum normal and instrument shaft relative angle;
R
hfor horizontal resistivity;
R
vfor vertical resistivity.
Fig. 2 be numerical simulation obtain with brill orientation electromagnetic wave instrument when different resistivity contrast and electric conductivity difference, the situation of change of induced electromotive force amplitude.Simulation finds: exist under single interface conditions, if the resistivity of medium both sides is not very close, the difference of the electrical conductivity of interface media of both sides is then proportional to the directed amplitude (induced electromotive force) in the interface of boring orientation electromagnetic wave instrument, the difference of medium both sides electrical conductivity is larger, directional electrical gesture signal amplitude is larger, that is:
Abs(v)∝|σ
1-σ
2|
(3)
In formula: v is reception antenna electromotive force; σ
1, σ
2be respectively interface media of both sides electrical conductivity.
Resistivity due to air can think infinitely great, and therefore cannot construct a resistivity contrast determined with salt water capacity liquid, such result of the test has difficulties with the corresponding of numerical simulation.The electrical conductivity of saline solution thinks roughly the difference of electrical conductivity of air and saline solution, so a structure electric conductivity difference ratio determined is easier to accomplish.Shown by Fig. 2 simulation: horizontal reception antenna directional electrical gesture signal v depends primarily on the difference of medium both sides electrical conductivity, and little with resistivity contrast relation.Saline solution electrical conductivity adjustable extent is very large, and therefore utilize air and saline solution to manufacture interface and facilitate feasible to carry out ground test, the design of this experimental rig is also based on this character.
In process of the test, after determining the distance at saline solution electrical conductivity and antenna and interface, using axial antenna 11 as transmitting antenna, horizontal antenna 12 is as reception antenna, metal pipe nipple 3 is parallel to interface 100, the signal that acquisition and processing reception antenna 12 records, mobile transmitting antenna 11 or reception antenna 12, change coil spacing, continue the signal that acquisition and processing reception antenna 12 records, repeat above step, obtain the Changing Pattern of ZX electromotive force signal with coil spacing, test measurement result and theoretical modeling result are analyzed.
By horizontal reception antenna 12 half-twist, repeat above measurement, ZY electromotive force signal can be recorded with coil spacing Changing Pattern.Using horizontal antenna 12 as transmitting antenna, axial antenna 11, as reception antenna, repeats above measurement, can record the Changing Pattern of XZ electromotive force signal with coil spacing.Using axial antenna 11 as transmitting antenna, axial antenna 15, as reception antenna, repeats above measuring process, can record ZZ electromotive force signal with coil spacing Changing Pattern.
Using axial antenna 11 as transmitting antenna, horizontal antenna 12 is as reception antenna.Determine distance and the operating frequency of axial antenna 11 and horizontal antenna 12, metal pipe nipple 3 is parallel with interface 100, the signal that acquisition and processing reception antenna 12 records, the height of adjustment pedestal 1 and 2, change the distance at metal pipe nipple 3 and interface 100, repeat above measurement, record the Changing Pattern of signal with interface distance.Utilize the data recorded to carry out interface distance inverting, and contrast with the signal of record and the relation of distance, the correctness of checking inversion method.
Using axial antenna 11 as transmitting antenna, horizontal antenna 12 is as reception antenna.Determine distance and the operating frequency of axial antenna 11 and horizontal antenna 12, metal pipe nipple 3 is positioned at position, interface 100, the signal that the horizontal antenna 12 of acquisition and processing records.Change saline solution 200 electrical conductivity, repeat above measurement, record the Changing Pattern of interface 100 place electromotive force range signal and both sides, interface electric conductivity difference.
Using axial antenna 11 as transmitting antenna, horizontal antenna 12 is as reception antenna, determine distance and the operating frequency of antenna 11 and antenna 12, metal pipe nipple 3 is parallel with interface 100, adjustment driving mechanism 10 rotating speed, allows driving mechanism 10 drive metal pipe nipple 3 to rotate, one week is divided into N (N≤4) individual sector, Signal sampling and processing signal is carried out in point sector, by azimuthal measurement apparatus 20 Real-time Collection and the sensing orientation recording horizontal antenna 12.Process obtains the relation of electromotive force signal with antenna azimuth, and the azimuth tendency at interface, and with the correctness of testing circumstance contrast verification data processing method and validity.
As shown in Figure 3, using axial antenna 11,17 as transmitting antenna, horizontal antenna 12 is as reception antenna, and axial antenna 11,17 is identical with the distance between horizontal antenna 12.Determining distance and the operating frequency of transmitting antenna 11,17 and reception antenna 12, by adjusting the height of two pedestals 1 and 2, making metal pipe nipple 3 be 80 ° with the angle of interface 100 normal.Measure axial antenna 11 respectively to launch, horizontal antenna 12 receives, the signal amplitude of electromotive force under single-shot list receipts measurement pattern, and axial antenna 11,17 is launched, and horizontal antenna 12 receives, the signal amplitude of electromotive force under two bill receipts symmetrical compensation pattern.Keep relative angle constant, change metal pipe nipple 3 and the distance at interface 100, repeat above measurement, obtain the relation of signal amplitude and interface distance in this relative angle situation.
Change metal pipe nipple 3 and the angle of interface 100 normal respectively, repeat above-mentioned measuring process, obtain the relation of signal amplitude and interface distance in different angle situation.
Using axial antenna 11,17 as transmitting antenna, horizontal antenna 12,13 is as reception antenna, and axial antenna 11,17 is identical with the distance between horizontal antenna 12,14 respectively.Determine distance and the operating frequency of transmitting antenna and reception antenna, by adjusting the height of two pedestals 1,2, it is 80 ° that metal pipe nipple 3 is respectively with the angle of interface 100 normal, measure axial antenna 11 respectively to launch, horizontal antenna 12,14 receives, electromotive force signal amplitude under single-emission and double-receiving pattern, and axial antenna 11,17 is launched, horizontal antenna 12,14 receives, two two receives electromotive force signal amplitude under symmetrical compensation patterns, obtains the relation of signal amplitude and interface distance in this relative angle situation.
Change metal pipe nipple 3 and the angle of interface 100 normal respectively, repeat above-mentioned measuring process, obtain the relation of signal amplitude and interface distance in different angle situation.
Claims (6)
1. the ground experiment method with brill orientation electromagnetic wave logger, antenna should be comprised with brill orientation electromagnetic wave logger, metal pipe nipple, azimuth counter, power supply and signal processing system, it is characterized in that: the described antenna with boring orientation electromagnetic wave logger has two axial antennas and two horizontal antennas at least, the magnetic moment direction of axial antenna and the dead in line of metal pipe nipple, the magnetic moment direction of horizontal antenna and metal pipe nipple axes normal, axial antenna splits in the both sides of horizontal antenna, horizontal antenna rotates a circle to be divided into and is no less than four sectors, each sector is connected with signal processing apparatus respectively, axial and horizontal antenna to be arranged on metal pipe nipple and to form along metal pipe nipple and slides and the cooperation that is rotatably connected, antenna transmission signal frequency range is between 100kHz-4MHz, this test method is based upon with on brill electromagnetic wave logger basis, orientation, to be supported with brill orientation electromagnetic wave logger by the stand of adjustable angle, and arranging by the medium interface of two kinds of different electrical conductivity with below brill orientation electromagnetic wave logger, and with the driving mechanism boring orientation electromagnetic wave logger metal pipe nipple rotary actuation and coordinate, test method comprises: metal pipe nipple is placed in air and conducting solution near interface, by adjusting the distance between axial antenna and horizontal antenna, records the Changing Pattern of ZX, ZY, XZ, ZZ electromotive force signal with coil spacing, by changing dielectric conductance rate, record the Changing Pattern of interface electromotive force range signal and both sides, interface electric conductivity difference, by adjustment driving mechanism rotating speed, record the relation of electromotive force signal with antenna azimuth, by adjusting height and the angle of stand, exciting different axial antennas, horizontal antenna, recording the signal amplitude of electromotive force, compensating Comparative result and effect analysis.
2. the ground experiment method with boring orientation electromagnetic wave logger according to claim 1, is characterized in that described test method specifically comprises:
(1) after determining the electrical conductivity of medium interface and the distance at antenna and interface, metal pipe nipple is parallel to medium interface, the signal that acquisition and processing reception antenna records, by axial antenna and horizontal tested rotating platform for launching or reception antenna, change axial antenna and horizontal antenna distance, angle, the signal that acquisition and processing reception antenna records, records the Changing Pattern of ZX, ZY, XZ, ZZ electromotive force signal with coil spacing, test measurement result and theoretical modeling result is analyzed;
(2) using axial antenna as transmitting antenna, horizontal antenna is as reception antenna, determine distance and the operating frequency of axial antenna and horizontal antenna, metal pipe nipple is parallel with medium interface, the height of adjustment metal pipe nipple and medium interface, the signal that acquisition and processing reception antenna records, record the Changing Pattern of signal with interface distance, change dielectric conductance rate, repeat above measurement, record the Changing Pattern of interface electromotive force range signal and both sides, interface electric conductivity difference;
(3) using axial antenna as transmitting antenna, horizontal antenna is as reception antenna, determine distance and the operating frequency of antenna and antenna, metal pipe nipple is parallel with interface, adjustment driving mechanism rotating speed, metal pipe nipple is divided into point sector of more than four for one week, Signal sampling and processing signal is carried out in point sector, by azimuthal measurement apparatus Real-time Collection and the sensing orientation recording horizontal antenna, process obtains the relation of electromotive force signal with antenna azimuth, and the azimuth tendency at interface, and contrast with testing circumstance;
(4) using axial antenna as the equidistant horizontal antenna both sides be arranged on as reception antenna of transmitting antenna, determine distance and the operating frequency of transmitting antenna and reception antenna, by adjusting angle and the height of stand, metal pipe nipple and medium interface normal is made to be certain angle, measure that single-shot list is received, two bill receives symmetrical compensation pattern respectively, single-emission and double-receiving pattern and two two signal amplitudes receiving symmetrical compensation mode electrically gesture, and the relation of signal amplitude and interface distance in this certain angle and different angle situation.
3. the ground experiment method with boring orientation electromagnetic wave logger according to claim 2, the concrete mode in step (1) that it is characterized in that is: after determining the distance at saline solution electrical conductivity and antenna and interface, using axial antenna as transmitting antenna, horizontal antenna is as reception antenna, metal pipe nipple is parallel to interface, the signal that acquisition and processing reception antenna records, mobile transmitting antenna or reception antenna, change coil spacing, continue the signal that acquisition and processing reception antenna records, repeat above step, record the Changing Pattern of ZX electromotive force signal with coil spacing, horizontal antenna is rotated 90
o, repeat above measurement, record ZY electromotive force signal with coil spacing Changing Pattern, using horizontal antenna as transmitting antenna, axial antenna, as reception antenna, repeats above measurement, records the Changing Pattern of XZ electromotive force signal with coil spacing, using an axial antenna as transmitting antenna, another axial antenna, as reception antenna, repeats above measuring process, records ZZ electromotive force signal with coil spacing Changing Pattern.
4. the ground experiment method with boring orientation electromagnetic wave logger according to claim 2, the concrete mode in step (4) that it is characterized in that is: using two axial antennas as transmitting antenna, a horizontal antenna is as reception antenna, axial antenna is identical with the distance between horizontal antenna, determine distance and the operating frequency of transmitting antenna and reception antenna, by adjusting the angle of stand, the angle of metal pipe nipple and interface normal is made to be 80
o, measure an axial antenna transmission respectively, a horizontal antenna receives, namely the signal amplitude of electromotive force under measurement pattern received by single-shot list, and two axial antenna transmissions, a horizontal antenna receives, and namely two bill receives the signal amplitude of electromotive force under symmetrical compensation pattern; Keep relative angle constant, change the distance at metal pipe nipple and interface, repeat above measurement, obtain the relation of signal amplitude and interface distance in this relative angle situation; Change the angle of metal pipe nipple and interface normal respectively, repeat above-mentioned measuring process, record the relation of signal amplitude and interface distance in different angle situation; Using two axial antennas as transmitting antenna, two horizontal antennas are as reception antenna, and axial antenna is identical with the distance between horizontal antenna respectively, determines distance and the operating frequency of transmitting antenna and reception antenna, by adjustment stand, make the angle of metal pipe nipple and interface normal for being 80
omeasure an axial antenna transmission respectively, two horizontal antennas receive, i.e. electromotive force signal amplitude under single-emission and double-receiving pattern, and two axial antenna transmissions, two horizontal antennas receive, and namely twoly receive electromotive force signal amplitude under symmetrical compensation patterns for two, record the relation of signal amplitude and interface distance in this relative angle situation; Change the angle of metal pipe nipple and interface normal respectively, repeat above-mentioned measuring process, obtain the relation of signal amplitude and interface distance in different angle situation.
5. according to claim 1 or 2,3,4 with the ground experiment method of boring orientation electromagnetic wave logger, it is characterized in that: adopt saline solution and air as the different two media of electrical conductivity below metal pipe nipple, for the formation of interface.
6. the ground experiment method with boring orientation electromagnetic wave logger according to claim 5, it is characterized in that: the supporting base that described stand is made without magnetic dielectric by two is distributed in the below of metal pipe nipple, and supporting base has height regulating mechanism, supporting base adopts bearing to be connected with metal pipe nipple junction; Medium interface is the interface that brine pit and air combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410035944.2A CN104747164B (en) | 2013-12-31 | 2014-01-24 | A kind of ground experiment method with brill orientation electromagnetic wave logger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013107501317 | 2013-12-31 | ||
| CN201310750131 | 2013-12-31 | ||
| CN201410035944.2A CN104747164B (en) | 2013-12-31 | 2014-01-24 | A kind of ground experiment method with brill orientation electromagnetic wave logger |
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| CN104747164A true CN104747164A (en) | 2015-07-01 |
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| CN107461191A (en) * | 2017-08-03 | 2017-12-12 | 中石化石油工程技术服务有限公司 | One kind is with brill orientation electromagnetic wave frontier probe instrument temperature scale method |
| CN110005398A (en) * | 2019-04-04 | 2019-07-12 | 中国石油大学(北京) | With brill electromagnetic wave resistivity logging Instrument Design parameter determination method and device |
| CN113216948A (en) * | 2021-05-19 | 2021-08-06 | 中国石油大学(北京) | Multi-coil-structure while-drilling nuclear magnetic resonance logging device and method |
| CN113406409A (en) * | 2021-05-20 | 2021-09-17 | 成都深地领航能源科技有限公司 | Testing system and method for underground pulse signal generator |
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