CN203441482U - Single-electrode power supply bottom-installation electrode system - Google Patents
Single-electrode power supply bottom-installation electrode system Download PDFInfo
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- CN203441482U CN203441482U CN201320435104.6U CN201320435104U CN203441482U CN 203441482 U CN203441482 U CN 203441482U CN 201320435104 U CN201320435104 U CN 201320435104U CN 203441482 U CN203441482 U CN 203441482U
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Abstract
The utility model discloses a single-electrode power supply bottom-installation electrode system, which comprises an insulation main body, and is characterized in that a single lead electrode and a group of paired lead electrodes are arranged inside the insulation main body, the paired lead electrodes comprise an upper electrode and a lower electrode, which are paired, the bottom of the insulation main body is provided with a balance weight, and the top of the insulation main body is provided with a waterproof binding post. A waterproof binding post protective cap is sleeved outside the waterproof binding post. Compared with the prior art, the single-electrode power supply bottom-installation electrode system has the advantages that convenience in installation and disassembling can be realized, the consumption of materials can be reduced, the overall performance is good, durable service can be realized, the working efficiency is high, and the accuracy and reliability of measured results can be guaranteed.
Description
Technical field
The utility model relates to borehole geophysics exploring equipment, is specifically related to a kind of single electrode power supply formal dress electrode system.
Background technology
Single electrode power supply formal dress electrode system is mainly used in borehole geophysics exploration, divides lithology, the degree of depth and the thickness on stratum, is commonly called as " electric logging ", and the single electrode power supply formal dress electrode system of prior art exists following defect.
(1) during original electrode system using according to one section of three core of length intercepting or the quad of required electrode system, cable lower end bundlees with iron wire after putting metal retaining ring, three cable conductors of afterbody are connected with three lead electrodes respectively, then according to electrode spacing, with adhesive waterproof tape colligation, fix.Cable upper end bundlees with iron wire after putting equally metal retaining ring.During each measurement, between land cable and electrode system, use " U " word ring to articulate, three, electrode system top cable conductor is connected with three cable cores of land cable respectively, and wrap up with adhesive waterproof tape junction, and the metal cylinder that use rope in electrode system bottom is hitched constant weight is as counterweight.
(2) due to use cable to make electrode system time soft body structure, in boring in descending process, as Borehole Diameter or local collapse hole, electrode system is understood and be heaped because being obstructed.For this reason, in descending process, cannot measure, each measurement must be all arrive first hole at the bottom of, upwards in lifting process, make electrode system stretching, guarantee the distance between electrode system measuring point, but when as irregular in the hole wall that runs into boring or hole deviation is larger, in promoting measuring process, can cause electrode system distortion, affect measurement result.
(3) each measurement needs to dismantle electrode system after finishing, wrapping again again when measuring next time.
Summary of the invention
The purpose of this utility model is to provide a kind of dress, it is convenient to tear open, the single electrode power supply formal dress electrode system that overall performance is good.
For achieving the above object, the technical solution adopted in the utility model is: a kind of single electrode power supply formal dress electrode system, comprise an insulating body, it is characterized in that being provided with in described insulating body single lead electrode processed, with a composition to lead electrode processed, described paired lead electrode processed comprises upper and lower two lead electrodes processed that arrange in pairs, and the bottom of described insulating body is provided with a counterweight, and the top of described insulating body is provided with a waterproof wiring post.Described waterproof wiring post overcoat has waterproof wiring post protective cap.According to logging tasks requirement and gradient array, record apparent resistivity curve shape, be made into bottom gradient electrode system or top gradient array.In bottom gradient electrode system, described single lead electrode processed is embedded in the top of insulating body, and in pairs plumbous electrode processed is embedded in the bottom of insulating body.In the gradient array of top, described paired lead electrode processed is embedded in the top of insulating body, and single lead electrode processed is embedded in the bottom of insulating body.
Compared with prior art, the utility model has the advantage of dress, tear open convenient, the consumption of saving material, overall performance is good, durable in use, operating efficiency is high, and can guarantee correctness and the reliability of measurement result.Single electrode power supply formal dress electrode system of the present utility model compared with prior art has following several respects advantage:
(1) overall performance is good, is no matter descending or promotes and all can not be out of shape in boring, can remain the distance between electrode system measuring point, makes all can measure in descending or lifting process, has improved the confidence level of operating efficiency and measurement result.
(2) fill, tear open conveniently, while measuring, only need turn on the waterproof wiring post protective cap at electrode system top at every turn, land cable connector lug is docked and tightened with the waterproof connector lug at electrode system top, can play line and waterproof action.After finishing, measurement turns on cable lug, cable lug and the electrode system waterproof connector lug protective cap of screwing on separately.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of nutural potential logging.
Fig. 3 is the Resistivity Tool schematic diagram of resistivity logging.
Fig. 4 is the gradient resistance rate logging principle figure of resistivity logging.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
A kind of single electrode power supply formal dress electrode system, comprise an insulating body 1, it is characterized in that described insulating body 1 top is provided with single lead electrode 2 processed, the bottom of described insulating body is provided with a composition to lead electrode 3 processed, described paired lead electrode processed comprises upper and lower two lead electrodes processed that arrange in pairs, the bottom of described insulating body 1 is provided with a counterweight 4, and the top of described insulating body is provided with a waterproof wiring post 5.Described waterproof wiring post 5 overcoats have waterproof wiring post protective cap.Described single lead electrode 2 processed and in pairs plumbous one pole 3 processed are all electrically connected to waterproof wiring post 5.
The diameter of electrode system, and the single electrode in top is to the distance between adjacent two the paired electrode central record points distance in bottom and adjacent two electrodes in bottom, can design and produce according to measurement task and well logging condition.The diameter of general this insulating body is 40mm～100mm, the diameter of this insulating body is 40mm～100mm, single lead electrode processed is 1m～2m to the distance between the in pairs plumbous electrode centers processed in bottom, and the distance in the in pairs plumbous electrode processed in bottom between adjacent two electrodes is 10cm～20cm.During making, electrode is directly embedded in insulating body.
The beneficial effects of the utility model are:
(1) wiring be can omit and 3M high-strength insulating adhesive tape used, the consumption of having saved material wrapped up.
(2) omitted land cable and electrode system wiring dressing time, and all can measure in descending or lifting process, improved operating efficiency.
Below the principle of electric logging is analyzed.Electric logging comprises with Types Below:
(1) nutural potential logging: when the obstructed electric current of electrode, still can measure potential difference, this potential difference is called natural potential.Due to during stratum forms, there is granular size, mineralogical composition, water content and salinity depositional environment are different.Form oxidation-reduction potential, electrofiltration potential, the difference of adsorption potential and osmotic potential, the current potential of measuring Different Strata by well logging apparatus is big or small.During well logging, an electrode is placed on ground, as ground electrodes N, another electrode is with in cable lower going-into-well, as Electrodes In Shallow Wells M(as Fig. 2), it is connected with surface recorder G with wire by cable, during well logging from top to bottom (or from lower to upper) M electrode along with cable moves to a certain degree of depth in well, on surface recorder, show the potential difference between two electrode M, N of this degree of depth, thus lithology, the degree of depth and the thickness on judgement stratum.
(2) resistivity logging: form the mineralogical composition, framework, compactness on stratum, moisture salinity difference, particle etc., under the effect of artificial electric field, can be to the difference on the mobile formation resistance of electric charge.The difference of measuring electric field flow of charge resistance by well logging apparatus is differentiated lithology, the degree of depth and the thickness on stratum.
A) current potential resistivity is that paired electrode spacing is greater than the not electrode system of paired electrode distance.B electrode is placed on ground (as Fig. 3).A, B are current electrode, and M, N are measurement electrode.Measuring point be not paired electrode A to the mid point of paired electrode M.During well logging, when electrode system moves in well, on ground, control on recorder G and automatically record and show current potential resistivity curve.
B) gradient resistance rate adopts bottom gradient electrode system, is that bottom paired electrode spacing is less than the not electrode system of paired electrode distance, and B electrode is placed on ground (as Fig. 4).A, B are current electrode, and M, N are measurement electrode.Measuring point is the mid point of paired electrode M and N.When electrode system moves in well, on ground, control on recorder and automatically record and show gradient resistance rate curve.
Electrode system, when designing and producing, can record apparent resistivity curve shape according to logging tasks requirement and gradient array, is made into bottom gradient electrode system or top gradient array.
Bottom gradient electrode system and top gradient array, the insulating body diameter of these two kinds of electrode systems is 40mm～100mm.
Bottom gradient electrode system, the single electrode in top is 1m～2m to the distance between adjacent two paired electrode centers, bottom, the distance between adjacent two electrodes in bottom is 10cm～20cm.
Top gradient array, the single electrode in bottom is 1m～2m to the distance between adjacent two paired electrode centers, top, the distance between adjacent two electrodes in top is 10cm～20cm.
Claims (6)
1. single electrode power supply formal dress electrode system, comprise an insulating body, it is characterized in that being provided with in described insulating body single lead electrode processed, with a composition to lead electrode processed, two electrodes that arrange in pairs up and down that described paired lead electrode processed comprises, the bottom of described insulating body is provided with a counterweight, and the top of described insulating body is provided with a waterproof wiring post.
2. single electrode power supply formal dress electrode system as claimed in claim 1, is characterized in that described waterproof wiring post overcoat has waterproof wiring post protective cap.
3. single electrode power supply formal dress electrode system as claimed in claim 1, is characterized in that described single lead electrode processed and in pairs plumbous electrode processed are all connected to waterproof wiring post.
4. single electrode power supply formal dress electrode system as claimed in claim 1, is characterized in that described single lead electrode processed is located at the top of insulating body, and in pairs plumbous electrode processed is located at the bottom of insulating body.
5. single electrode power supply formal dress electrode system as claimed in claim 1, is characterized in that described paired lead electrode processed is located at the top of insulating body, and single lead electrode processed is located at the bottom of insulating body.
6. single electrode as claimed in claim 1 power supply formal dress electrode system, the diameter that it is characterized in that this insulating body is 40mm～100mm, single lead electrode processed is 1m～2m to the distance between in pairs plumbous electrode centers processed, and the distance in pairs plumbous electrode processed between adjacent two electrodes is 10cm～20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435104.6U CN203441482U (en) | 2013-07-22 | 2013-07-22 | Single-electrode power supply bottom-installation electrode system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435104.6U CN203441482U (en) | 2013-07-22 | 2013-07-22 | Single-electrode power supply bottom-installation electrode system |
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| Publication Number | Publication Date |
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| CN203441482U true CN203441482U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320435104.6U Expired - Lifetime CN203441482U (en) | 2013-07-22 | 2013-07-22 | Single-electrode power supply bottom-installation electrode system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371907A (en) * | 2014-09-01 | 2016-03-02 | 黑龙江省水利科学研究院 | Flow field method detection sensor capable of preventing from receiving pseudo-information |
| CN114419975A (en) * | 2022-01-18 | 2022-04-29 | 西南石油大学 | Composite teaching demonstration device and method for common resistivity logging and dual laterolog |
-
2013
- 2013-07-22 CN CN201320435104.6U patent/CN203441482U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371907A (en) * | 2014-09-01 | 2016-03-02 | 黑龙江省水利科学研究院 | Flow field method detection sensor capable of preventing from receiving pseudo-information |
| CN114419975A (en) * | 2022-01-18 | 2022-04-29 | 西南石油大学 | Composite teaching demonstration device and method for common resistivity logging and dual laterolog |
| CN114419975B (en) * | 2022-01-18 | 2024-02-06 | 西南石油大学 | Composite teaching demonstration device and method for common resistivity well logging and double lateral well logging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200072 No. 930, Lingshi Road, Shanghai, Zhabei District Patentee after: Shanghai Geotechnical Engineering Testing Center Co.,Ltd. Address before: 200072 No. 930, Lingshi Road, Shanghai, Zhabei District Patentee before: SHANGHAI GEOTECHNICAL ENGINEERING DETECTING CENTER |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |