CN103809202A - Induced polarization sounding multichannel observation method - Google Patents
Induced polarization sounding multichannel observation method Download PDFInfo
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- CN103809202A CN103809202A CN201210446492.8A CN201210446492A CN103809202A CN 103809202 A CN103809202 A CN 103809202A CN 201210446492 A CN201210446492 A CN 201210446492A CN 103809202 A CN103809202 A CN 103809202A
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Abstract
An induced polarization sounding multichannel observation method belongs to the technical field of an observation method. The invention particularly relates to an induced polarization sounding multichannel observation method and provides an induced polarization sounding multichannel observation method which has the advantage of high field data acquisition efficiency. The method comprises the following steps: 1), placing a power supply electrode as an infinite distance electrode at a position quite far away from a well head, placing other power supply electrodes and measuring electrodes into a well, and performing power supply and measuring in the well from the bottom to the top; and 2), finishing measuring a first depth measurement point, and the power supply electrodes and the measuring electrodes integrally moving upwards by one point position; and finishing measuring a second depth measurement point, continuing to move upwards by one point position, then continuing power supply and measuring, and repeating the previous procedures until the measurement of the whole well is finished.
Description
Technical field
the invention belongs to observation procedure technical field, relate in particular to a kind of induced electrical sounding multi-channel GPS observations method.
Background technology
at present, aspect middle deep mineral products, water resource and engineering exploration, widely used electromagnetic sounding method mainly contains AMT method, CSAMT method, EH-4 method and TEM method, and they have obtained good exploration effects in application.And for the High Density Resistivity in DC electrical method, vertical resistivity depth measurement and resistivity sounding method, also have its peculiar advantage when tens meters of objective bodies to the hundreds of rice degree of depth surveying, that is exactly that simple to operate, economy and quantitative inversion interpretation procedure are relatively ripe etc.But in detection when geology of deep part objective body, for belonging to the conventional resistivity soun ding of surveying for how much, can only increase investigation depth by increasing polar distance of supplying power, if still adopt original observed pattern (to increase polar distance of supplying power AO in exponential increasing mode, measuring pole span MO immobilizes or does suitable increase), will inevitably reduce like this work efficiency, increase data acquisition cost.Therefore, be necessary existing electric sounding observation procedure to be improved, in conjunction with existing hyperchannel electrical prospecting apparatus, realize field high efficiency data acquisition.
Summary of the invention
the present invention is exactly for the problems referred to above, and a kind of induced electrical sounding multi-channel GPS observations method that field data collection efficiency is high is provided.
to achieve these goals, the present invention adopts following technical scheme, the present invention includes following steps.
1) using transmitting electrode as pole at infinity, be positioned over the position away from from well head, all the other transmitting electrodes, and potential electrode is placed in well, powers from the bottom to top and measure in well.
2) first depth measurement point measurement finishes, transmitting electrode and the potential electrode entirety point position that moves up; Second depth measurement point measurement finishes, then moves a some position on continuing, then continues power supply and measure, and so forth, until whole mouthful of well measurements finishes.
as a kind of preferred version, the number of transmitting electrode of the present invention is 10.
as another kind of preferred version, the number of potential electrode of the present invention is 20.
beneficial effect of the present invention.
the present invention measures by certain step by transmitting electrode, potential electrode, has greatly improved field data collection efficiency.
Embodiment
the present invention includes following steps.
1) using transmitting electrode as pole at infinity, be positioned over the position away from from well head, all the other transmitting electrodes, and potential electrode is placed in well, powers from the bottom to top and measure in well.
2) first depth measurement point measurement finishes, transmitting electrode and the potential electrode entirety point position that moves up; Second depth measurement point measurement finishes, then moves a some position on continuing, then continues power supply and measure, and so forth, until whole mouthful of well measurements finishes.
the number of described transmitting electrode is 10.
the number of described potential electrode is 20.
the polar distance of supplying power of conventional axial dipole electric sounding and measurement pole span equate, power and increase depth of exploration with the distance BM of potential electrode by increase, along with isolating coefficient increases gradually, observation signal weakens gradually, in the time that isolating coefficient is greater than 10, observation signal is fainter, makes it be unsuitable for the exploration of middle geology of deep part objective body.Therefore consider that increasing polar distance of supplying power improves signal intensity; The distance that increases power supply and potential electrode increases depth of exploration.By coefficient is reasonably set, make axial dipole electrode sounding device can solve in the exploration problem of geology of deep part objective body.
field operation process is: suppose that receiving the port number of arranging is n, and with the disposable laying of adjacent electrode interval a well, pole span AB=na is set, BC1=ma.After the system that transmits and receives is good along Hydrographic General Line, power whole measurement of AB is arranged simultaneously and is received; Then entirety (as to measuring orientation) displacement a forward, then power and receive, until measuring, finishes by whole piece survey line.The spread length of considering AB and C1Cn in reality may be larger, being not easy to entirety moves forward, therefore fixed transmission and receiver, electrode A and B end supply lines are moved forward respectively apart from a, measure and arrange a passage of head end (C1 side) minimizing, tail end (Cn side) increases a passage, to move forward gradually apart from a.In the time of AB power supply and two adjacent electrode measurements, measuring point coordinate is in the horizontal, on longitudinally depending on the degree of depth is.
be understandable that, above about specific descriptions of the present invention, only for being described, the present invention is not limited to the described technical scheme of the embodiment of the present invention, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as meet, all within protection scope of the present invention.
Claims (3)
1. induced electrical sounding multi-channel GPS observations method, is characterized in that comprising the following steps:
1) using transmitting electrode as pole at infinity, be positioned over the position away from from well head, all the other transmitting electrodes, and potential electrode is placed in well, powers from the bottom to top and measure in well;
2) first depth measurement point measurement finishes, transmitting electrode and the potential electrode entirety point position that moves up; Second depth measurement point measurement finishes, then moves a some position on continuing, then continues power supply and measure, and so forth, until whole mouthful of well measurements finishes.
2. induced electrical sounding multi-channel GPS observations method according to claim 1, the number that it is characterized in that described transmitting electrode is 10.
3. induced electrical sounding multi-channel GPS observations method according to claim 1, the number that it is characterized in that described potential electrode is 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210446492.8A CN103809202A (en) | 2012-11-09 | 2012-11-09 | Induced polarization sounding multichannel observation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210446492.8A CN103809202A (en) | 2012-11-09 | 2012-11-09 | Induced polarization sounding multichannel observation method |
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| Publication Number | Publication Date |
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| CN103809202A true CN103809202A (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210446492.8A Pending CN103809202A (en) | 2012-11-09 | 2012-11-09 | Induced polarization sounding multichannel observation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291722A (en) * | 2016-08-25 | 2017-01-04 | 中国科学院地质与地球物理研究所 | A kind of ground well induced-polarization measurement method and relevant device |
| CN109184671A (en) * | 2018-08-28 | 2019-01-11 | 中国地质大学（武汉） | A kind of electromagnetic measurement while drilling underground signal reception pup joint equipment |
| CN111427092A (en) * | 2020-05-13 | 2020-07-17 | 天津华北地质勘查总院 | Method for improving geophysical prospecting electrical deep field construction efficiency |
-
2012
- 2012-11-09 CN CN201210446492.8A patent/CN103809202A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291722A (en) * | 2016-08-25 | 2017-01-04 | 中国科学院地质与地球物理研究所 | A kind of ground well induced-polarization measurement method and relevant device |
| CN109184671A (en) * | 2018-08-28 | 2019-01-11 | 中国地质大学（武汉） | A kind of electromagnetic measurement while drilling underground signal reception pup joint equipment |
| CN111427092A (en) * | 2020-05-13 | 2020-07-17 | 天津华北地质勘查总院 | Method for improving geophysical prospecting electrical deep field construction efficiency |
| CN111427092B (en) * | 2020-05-13 | 2022-12-27 | 天津华北地质勘查总院 | Method for improving geophysical prospecting electrical sounding deep field construction efficiency |
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Application publication date: 20140521 |