CN202256701U - Cross-well parallel resistivity CT test system - Google Patents
Cross-well parallel resistivity CT test system Download PDFInfo
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- CN202256701U CN202256701U CN2011203070239U CN201120307023U CN202256701U CN 202256701 U CN202256701 U CN 202256701U CN 2011203070239 U CN2011203070239 U CN 2011203070239U CN 201120307023 U CN201120307023 U CN 201120307023U CN 202256701 U CN202256701 U CN 202256701U
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Abstract
The utility model discloses a cross-well parallel resistivity CT test system, comprising an electrical method test instrument, two test cables, wherein the test cables comprise connection cables electrically connected with the electrical method test instrument and electrode cables electrically connected with the connection cables and a plurality of electrodes are electrically connected with the electrode cables. The perspective electrical field data collection of the kilometer deep well is realized, the local detection work efficiency is high, the precision is high, the whole well test efficiency and precision are increased and the cross-well parallel resistivity CT test system has important value on resource exploration and hydrological engineering environmental geological exploration.
Description
Technical field
The utility model relates to drilling well geophysical survey field, is specially parallel resistance rate CT test macro between a kind of well.
Background technology
Boring is a kind of important means that obtains geologic information, can understand the development condition of various rock stratum in the underground geologic bodies in the geologic prospecting through boring, and the distribution characteristics of various geologic anomaly bodies such as tomography, karst collapse col umn, shatter belt.Because boring is a peephole view often, geologic condition lacks full appreciation on the opposite.Therefore utilize the space condition between the boring to make up the detection section; Carry out resistivity CT method detection between well; According to difference between the formation resistivity, can obtain geologic condition and off-note in the test zone, it is surveyed achievement and has characteristics on the face; Value capable of using is high, has important use in association areas such as geologic prospecting and engineering investigations and is worth.
At present; Resistivity method adopts traditional high-density electric technology to carry out data acquisition usually between well; On-site data gathering efficient is low, and data volume is few, and receives condition to limit the system equipment of test comparatively simple; Big to km deep-well difficulty of test, the electrical parameter that is obtained and section is limited to the resolution characteristic of geologic body as a result.
The utility model content
The utility model purpose provides parallel resistance rate CT test macro between a kind of well, can't be adapted to the problem that the darker deep-well of the degree of depth is measured with parallel resistance rate measuring system between the well that solves prior art.
In order to achieve the above object, the technical scheme that the utility model adopted is:
Parallel resistance rate CT test macro between well; It is characterized in that: comprise the electrical method tester; And electric respectively two test cables that insert the electrical method tester; Said test cable comprises the stube cable that is electrically connected with the electrical method tester, through the electrode cable that connector is electrically connected with stube cable, electrode cable powers on and has access to a plurality of electrodes along the equidistant word order of electrode cable in each test cable.
Parallel resistance rate CT test macro between described well is characterized in that: also include two winches, two corresponding one by one respectively being wrapped on the reel of two winches of test cable.
Parallel resistance rate CT test macro between described well is characterized in that: said electrical method tester has two control cables, and stube cable inserts the electrical method tester through a control cable electricity in the test cable.
Parallel resistance rate CT test macro between described well is characterized in that: the electrode cable electrode that inserts that powers on has 32 in the said test cable.
In the utility model; Test cable comprises stube cable and electrode cable two parts; Electrode cable is at the foot of survey line; Hang with the electrode of a plurality of electricity access electrode cables on the electrode cable, electrode is by the electrode cable control that is inserted, and electrode separation requires to adjust according to the resolution to the test target body.
In the utility model, according to the resolution requirement to the test target body, the spacing of electrode cable top electrode is selected suitable distance values, can select the different electrode separation of 1.0-10.0m.Adopt winch as control system; Test cable is wrapped on the reel of winch; Utilize the winch test cable that km is long to send in the wellhole, arrive projected depth respectively and form certain test zone, cooperate the electrical method tester to form the laggard line data collection of complete test macro.
During data acquisition with in two drilling wells totally six ten four electrodes be that a survey line carries out data acquisition, utilize one pole power supply or dipole power supply dual mode to carry out parallel data acquisition, obtain the corresponding supply current of each electrode and measure current potential; In the test process when one pole power supply or dipole power supply, other electrode synchro measures, the data that obtained are the full electric field electrical parameter of cross-hole region, help the Inversion Calculation of space resistivity between well; Carry out the survey station conversion according to the testing well hole depth, and keep the multiplicity of test zone between two survey stations, obtain to require in the km deep-well the complete electrical test data of test section.
The utility model has the advantages that:
1, can realize perspective electric field data acquisition to the km deep-well, winch and test cable are integrated, realize km deep-well cable up-down robotization through automatic operation.Stube cable is connected through connector with electrode cable, can select different poles apart from the potential electrode cable according to detection of a target body size, improves the exploration resolution characteristic to objective body.
2,64 electrodes between two wellholes are carried out parallel data acquisition, on-the-spot detection operations efficient is high, and institute's data volume that obtains is big, and pull(ing) effect is strong, and result of detection is clear and intuitive, precision is high, satisfies the technical requirement of exploring production fully.Parallel electric field data acquisition can obtain the full electric field electrical parameter of cross-hole region, helps the resolution to different geologic anomaly bodies.
3, through winch cable is controlled automatically, can surveyed and differentiate, improve whole well surveying examination efficient and precision, resource exploration and water conservancy project ring are reconnoitred etc. had significant values different depth wellhole, different target body.
Description of drawings
Fig. 1 is the structure principle chart of the utility model.
Embodiment
As shown in Figure 1.Parallel resistance rate CT test macro between well; Comprise electrical method tester 1; And electric respectively two test cables 2 that insert electrical method tester 1; Test cable 2 comprises the stube cable 3 that is electrically connected with electrical method tester 1, through the electrode cable 5 that connector 4 is electrically connected with stube cable 3, electrode cable 5 powers on and has access to 32 electrodes 6 along electrode cable 5 equidistant word orders in each test cable 2.Include also that 7, two test cables 2 of two winches are corresponding one by one respectively to be wrapped on the reel 8 of two winches 7.Electrical method tester 1 has that stube cable inserts electrical method tester 1 through a control cable electricity in two control cable 9, one test cables.
Claims (4)
1. parallel resistance rate CT test macro between well; It is characterized in that: comprise the electrical method tester; And electric respectively two test cables that insert the electrical method tester; Said test cable comprises the stube cable that is electrically connected with the electrical method tester, through the electrode cable that connector is electrically connected with stube cable, electrode cable powers on and has access to a plurality of electrodes along the equidistant word order of electrode cable in each test cable.
2. parallel resistance rate CT test macro between well according to claim 1 is characterized in that: also include two winches, two corresponding one by one respectively being wrapped on the reel of two winches of test cable.
3. parallel resistance rate CT test macro between well according to claim 1 is characterized in that: said electrical method tester has two control cables, and stube cable inserts the electrical method tester through a control cable electricity in the test cable.
4. parallel resistance rate CT test macro between well according to claim 1 is characterized in that: the electrode cable electrode that inserts that powers on has 32 in the said test cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203070239U CN202256701U (en) | 2011-08-23 | 2011-08-23 | Cross-well parallel resistivity CT test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203070239U CN202256701U (en) | 2011-08-23 | 2011-08-23 | Cross-well parallel resistivity CT test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256701U true CN202256701U (en) | 2012-05-30 |
Family
ID=46117920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203070239U Expired - Lifetime CN202256701U (en) | 2011-08-23 | 2011-08-23 | Cross-well parallel resistivity CT test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235344A (en) * | 2013-04-07 | 2013-08-07 | 淮南矿业(集团)有限责任公司 | Double-lane multi-electrode electric perspective detection system |
-
2011
- 2011-08-23 CN CN2011203070239U patent/CN202256701U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235344A (en) * | 2013-04-07 | 2013-08-07 | 淮南矿业(集团)有限责任公司 | Double-lane multi-electrode electric perspective detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |