CN216110679U - Stabilizer suitable for strong appearance that shakes in pit - Google Patents
Stabilizer suitable for strong appearance that shakes in pit Download PDFInfo
- Publication number
- CN216110679U CN216110679U CN202121883577.3U CN202121883577U CN216110679U CN 216110679 U CN216110679 U CN 216110679U CN 202121883577 U CN202121883577 U CN 202121883577U CN 216110679 U CN216110679 U CN 216110679U
- Authority
- CN
- China
- Prior art keywords
- seismograph
- downhole
- top plate
- stabilizer
- underground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003381 stabilizer Substances 0.000 title claims abstract description 34
- 230000011664 signaling Effects 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000019771 cognition Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model provides a stabilizer suitable for strong seismograph in pit, includes: the device comprises a top plate, a plurality of driving parts, a plurality of movable support piece inclinometers and a controller; the driving parts are uniformly distributed on the fixed top plate along the circumferential direction of the top plate, the top end of each movable supporting piece is connected with the corresponding driving part, the driving parts are used for adjusting the angle of the movable supporting pieces, and the top plate is rigidly connected with the underground strong vibration instrument through the connecting piece; the inclinometer is rigidly connected with the underground strong seismograph and is used for measuring inclination angle signals of the underground strong seismograph; the controller is used for receiving the inclination angle signal and controlling the driving part through the inclination angle signal to adjust the angle of the movable support piece, so that the underground strong vibration instrument is in a vertical state. The method can accurately judge the inclination condition of the underground strong seismograph and perform centralization, and improves the measurement accuracy of the underground strong seismograph.
Description
Technical Field
The utility model relates to an engineering macroseism measures the field, in particular to stabilizer suitable for strong seismograph in pit.
Background
The strong earthquake observation is an effective way for deepening the scientific cognition of the earthquake, and the underground strong earthquake measurement has important significance for recognizing the field amplification effect of earthquake motion. At present, mature underground strong shock measuring equipment, namely an underground strong shock instrument, is available. An important factor in the strong earthquake measurement is that three earthquake motion components of east-west, north-south and vertical are accurately measured, and the accurate measurement of the three-component earthquake motion has important significance for the analysis of the regional attenuation relation of the earthquake motion, the analysis of the earthquake motion field effect caused by topographic geological conditions, the analysis of earthquake seismographic phase and the like. To achieve accurate measurement of three-component seismic motion, accurate horizontal orientation and vertical righting of the seismograph (ensuring that the inclination of the device is zero) must be achieved.
The underground strong seismograph is an instrument used for measuring underground seismic acceleration in an earthquake and mainly has the function of obtaining the deep underground seismic distribution rule. By utilizing the comparison of the underground strong seismograph and the earth surface strong seismograph, the method is favorable for understanding the amplification or reduction effect of different topographic and geological conditions on seismic oscillation, and is favorable for improving the understanding of the seismic distribution rule under the complex geological conditions. A key problem in the installation and use of the existing underground strong seismograph is how to realize the accurate righting of the strong seismograph, if the accurate righting cannot be realized (namely the strong seismograph has an inclination angle with the vertical direction), the measured three-component seismic motion is not the three components of east-west-south-north-vertical, and the result cannot be compared with the result of the earth surface strong seismograph. The scheme adopted at present is to strictly limit the hole inclination and the hole diameter of a drilling well for installing the strong seismograph, so that the inclination angle of the strong seismograph is in a smaller range (less than 3 degrees) by limiting the hole inclination and the hole diameter, and the measurement error caused by a small inclination angle is ignored. However, the measurement error of the method still has great influence on high-precision seismic motion analysis and cannot be ignored. The limitation on the hole inclination and the hole diameter also can seriously affect the applicability of the underground strong seismograph, the underground strong seismograph cannot be effectively installed and used in regions with complicated geological conditions and large drilling capacity limitation, and the limitation on the increase of the cognition on the seismic motion distribution rule under the complicated geological and topographic conditions is serious.
SUMMERY OF THE UTILITY MODEL
The present disclosure is directed to solving one of the problems set forth above.
Therefore, the present disclosure provides a stabilizer capable of controlling an inclination angle to centralize an underground seismograph so as to ensure high-precision measurement of the underground seismograph, comprising:
the top plate is positioned above the underground strong seismograph;
the driving parts are uniformly distributed and fixed on the top plate along the circumferential direction of the top plate;
the top end of each movable support piece is connected with the corresponding driving part, and the driving part is used for adjusting the angle of the movable support piece;
the inclinometer is rigidly connected with the underground strong seismograph and used for measuring inclination angle signals of the underground strong seismograph; and
and the controller is electrically connected with the inclinometer and each driving part and is used for receiving the inclination angle signal and controlling the driving parts through the inclination angle signal to adjust the angle of the movable support, so that the underground macroseism instrument is in a vertical state.
The stabilizer suitable for the underground strong vibration instrument has the following characteristics and beneficial effects:
the stabilizer suitable for the underground strong vibration instrument provided by the disclosure utilizes the driving part to control the angle of the movable support part, and the inclination degree of the underground strong vibration instrument and the stabilizer is adjusted through the change of the angle of the movable support part. And the reading of the inclinometer is utilized to continuously reduce the inclination angle of the underground strong seismograph, and finally, the underground strong seismograph is accurately righted. Because the stabilizer suitable for the underground strong vibration instrument is rigidly connected to the upper part of the underground strong vibration instrument, the inclination condition of the underground strong vibration instrument can be accurately judged and the underground strong vibration instrument can be righted, and the measurement of the underground strong vibration instrument can not be influenced, so that the underground strong vibration instrument can be righted accurately.
In some embodiments, the drive component is a drive motor.
In some embodiments, the driving part controls the movable support to move in a radial direction of the top plate.
In some embodiments, the movable support is a support bar.
In some embodiments, during lowering of the downhole seismograph, each of the movable supports is in a straightened state.
In some embodiments, each of the movable supports is in an open state when the downhole seismograph reaches the bottom of the borehole.
In some embodiments, during lowering of the downhole seismograph, the outer diameter of the stabilizer does not exceed the outer diameter of the downhole seismograph; the stabilizer has an outer diameter between an outer diameter of the downhole seismograph and an inner diameter of the borehole when the downhole seismograph reaches the bottom of the borehole.
Drawings
Fig. 1 is a schematic overall structural diagram of a stabilizer suitable for a downhole seismograph according to an embodiment of the present disclosure;
fig. 2(a), 2(b), and 2(c) a schematic diagram of a stabilizer descending process suitable for a downhole seismograph according to an embodiment of the present disclosure, where fig. 2(a) is a schematic diagram of a state of the stabilizer and the downhole seismograph at a descending stage, fig. 2(b) is a schematic diagram of a state of the stabilizer and the downhole seismograph during a centralization process, and fig. 2(c) is a schematic diagram of a state of the stabilizer and the downhole seismograph after the centralization.
Reference numerals:
1: top plate, 21: movable support, 22: drive means, 3: inclinometer, 4: controller, 5: connecting piece, 6: downhole seismograph, 7: and (6) drilling.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.
Referring to fig. 1, the stabilizer suitable for the downhole strong seismograph provided by the embodiment of the present disclosure, the centralizer is disposed above the downhole strong seismograph, and includes:
the top plate 1 is positioned above the underground strong seismograph 6;
the driving parts 22 are uniformly distributed and fixed on the top plate 1 along the circumferential direction of the top plate 1;
a plurality of movable supporting pieces 21, wherein each movable supporting piece 21 is connected with a corresponding driving part 22, and the driving parts 22 are used for adjusting the angle of the movable supporting piece 21;
the inclinometer 3 is rigidly connected with the underground strong seismograph 6 and used for measuring inclination angle signals of the underground strong seismograph 6;
the controller 4 is electrically connected with the inclinometer 3 and each driving part 22 and is used for receiving an inclination angle signal measured by the inclinometer 3, and controlling the driving part 22 through the inclination angle signal to adjust the angle of the movable support 21 so that the downhole seismograph 6 is in a vertical state; and
and the connecting piece 5 is used for rigidly connecting the top plate 1 and the downhole seismograph 6.
In some embodiments, the top plate 1 is a flat plate with a certain thickness as a base for installing the driving part 22, and the driving part 22 is uniformly installed on the top plate 1, for example, fixed on the upper surface of the top plate 1, or fixed on the side surface or the bottom surface of the top plate 1.
In some embodiments, each driving member 22 employs a driving motor, an output end of each driving motor is connected to a top end of a corresponding one of the movable supports 21, and an included angle of the axial direction of the corresponding movable support 21 with respect to a vertical plane can be changed by the driving member 22, so as to change an included angle of the downhole seismograph 6 with respect to a plumb plane. Specifically, the driving member 22 may drive the top end of the movable support 21 to move along the radial direction of the top plate 1, or the driving member 22 may rotate the top end of the movable support 21 without changing the position of the top end of the movable support 21 along the radial direction of the top plate 1.
In some embodiments, each of the movable supporting members 21 has the same structure and is a supporting rod, the top end of each supporting rod is connected to a corresponding one of the driving members, and the bottom end of each supporting rod is a free end.
In some embodiments, the inclinometer 3 is rigidly connected with the downhole seismograph 6 through the connecting piece 5, so that the measurement of the inclination angle of the downhole seismograph can be realized. The measured inclination angle is transmitted to the controller 4 on the ground through a cable, the inclination degree and the direction of the underground strong seismograph 6 are judged according to the inclination angle condition, and then the controller 4 adjusts the opening degree of the movable supporting piece 21 through the driving part 22, so that the centralizing effect is achieved. Specifically, the connecting member 5 may be a hollow steel pipe, the top end of the steel pipe is rigidly connected to the bottom end of the top plate 1, the bottom end of the steel pipe is rigidly connected to the top end of the downhole strong vibration instrument 6, and the inclinometer 3 and the signal lines of the inclinometer 3 and the downhole strong vibration instrument 6 are connected to the controller 4 located on the ground or in the central control room after passing through the steel pipe.
In some embodiments, in order to ensure that the stabilizer of the embodiment of the present disclosure meets the installation requirement of a drilling well (the diameter of the drilling well where the stabilizer is suitable for installation is 90mm to 250mm), when the downhole strong vibration instrument 6 is in the downhole installation stage, the outer diameter of the whole stabilizer does not exceed the outer diameter of the downhole strong vibration instrument 6, and the outer diameter of the downhole strong vibration instrument is 70 mm to 110 mm; when the downhole seismograph 6 reaches a specified depth, the angle of each movable support 21 is adjusted to centralize the downhole seismograph 6, at which stage the outer diameter of the entire stabilizer is between the outer diameter of the downhole seismograph 6 and the inner diameter of the borehole 7.
The working process of the stabilizer of the embodiment of the disclosure is as follows:
referring to fig. 2(a), in the descending stage of the downhole seismograph 6, each movable support 21 is in a straightening state (i.e. an initial state) under the control of the driving part 22, and the maximum outer diameter of the whole stabilizer is 90mm and is consistent with the outer diameter of the downhole seismograph 6, so that a well with the diameter larger than 90mm can be smoothly lowered. The process can be realized only by the self gravity of the underground strong vibration instrument 6 without any electronic control equipment, and the operation is simple and the reliability is high.
When the downhole strong seismograph 6 reaches the bottom of the well 7 and contacts with rock or sandy soil at the bottom of the well, each driving part 22 adjusts the angle of the corresponding movable supporting piece 21, so that the outer diameter of the whole stabilizer is increased until each movable supporting piece 21 is expanded to be consistent with the diameter of the well, and at the moment, each movable supporting piece 21 is supported on the wall of the well to play a role in fixing the downhole strong seismograph 6. However, since the borehole wall may have a certain inclination and is not completely vertical, the downhole seismograph 6 may have a certain inclination and is not vertical.
Because the downhole strong seismograph 6 has a certain inclination angle, the inclination state of the downhole strong seismograph 6 needs to be further adjusted to realize accurate underground righting. Firstly, the controller reads the reading of the inclinometer 3, adjusts the driving motor according to the reading of the inclinometer 3, and controls the opening of the corresponding movable support piece 21 to change, thereby reducing the inclination angle of the downhole seismograph 6. Such as: referring to fig. 2(b), when the readings of the inclinometer 3 show that the downhole seismograph 6 inclines to the right (the left side is high and the right side is low), the opening degree of the left side supporting piece is increased and the opening degree of the right side supporting piece is reduced through the driving motor, and the readings of the inclination angles in the left and right directions can be zero through slow adjustment. By repeatedly reading the readings of the inclinometer and controlling the opening of the supporting piece by using the driving motor, the readings in two directions of the inclinometer can be zero, and the accurate centralization of the underground strong seismograph 6 is realized at the moment, which is shown in fig. 2 (c).
To sum up, the stabilizer suitable for strong shakes in pit that this disclosed embodiment provided can be accurate the slope condition of judgement strong shakes in pit to utilize the aperture of drive unit control movable support piece to make the righting to strong shakes in pit, and can not influence the measurement of strong shakes in pit, finally realize the accurate righting of strong shakes in pit.
Claims (7)
1. A stabilizer suitable for use in a downhole seismograph, comprising:
the top plate is positioned above the underground strong seismograph;
the driving parts are uniformly distributed and fixed on the top plate along the circumferential direction of the top plate;
the movable supporting pieces are connected with the corresponding driving parts, and the angles of the movable supporting pieces are adjusted by the driving parts;
the inclinometer is rigidly connected with the underground strong seismograph and used for measuring inclination angle signals of the underground strong seismograph;
the connecting piece is arranged between the top plate and the underground strong vibration instrument, so that the top plate is rigidly connected with the underground strong vibration instrument; and
and the controller is electrically connected with the inclinometer and each driving part and is used for receiving the inclination angle signal and controlling the driving parts through the inclination angle signal to adjust the angle of the movable support, so that the underground macroseism instrument is in a vertical state.
2. A stabilizer according to claim 1, wherein the drive member is a drive motor.
3. The stabilizer according to claim 1, wherein the driving part controls the movable support to move in a radial direction of the top plate.
4. The stabilizer according to claim 1, wherein the movable support is a support rod.
5. The stabilizer of claim 1, wherein each of the movable supports is in a straightened state during lowering of the downhole seismograph.
6. The stabilizer of claim 1, wherein each of the movable supports is in an open state when the downhole seismograph reaches the bottom of a borehole.
7. A stabilizer according to any one of claims 1 to 6, wherein during descent of the downhole seismograph, the outer diameter of the stabilizer does not exceed the outer diameter of the downhole seismograph; the stabilizer has an outer diameter between an outer diameter of the downhole seismograph and an inner diameter of the borehole when the downhole seismograph reaches the bottom of the borehole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121883577.3U CN216110679U (en) | 2021-08-12 | 2021-08-12 | Stabilizer suitable for strong appearance that shakes in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121883577.3U CN216110679U (en) | 2021-08-12 | 2021-08-12 | Stabilizer suitable for strong appearance that shakes in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216110679U true CN216110679U (en) | 2022-03-22 |
Family
ID=80725682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121883577.3U Active CN216110679U (en) | 2021-08-12 | 2021-08-12 | Stabilizer suitable for strong appearance that shakes in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216110679U (en) |
-
2021
- 2021-08-12 CN CN202121883577.3U patent/CN216110679U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7669656B2 (en) | Method and apparatus for rescaling measurements while drilling in different environments | |
| CN110186442B (en) | Drilling directional measurement device and method fixed on drilling machine | |
| CN101201411B (en) | Down-hole all-directional tidal observation system | |
| US20110194375A1 (en) | Methods and systems for seismic sensors | |
| CN105785292B (en) | A kind of rock and ore sample magnetic parameters device used for geological prospecting and measuring method | |
| CN216110679U (en) | Stabilizer suitable for strong appearance that shakes in pit | |
| CN113622836B (en) | Centralizer suitable for strong appearance that shakes in pit | |
| CN103808236A (en) | Blasthole measuring instrument | |
| CN208310756U (en) | A kind of bore inclining gage probe | |
| RU2066749C1 (en) | Method for determination of wellbore inclination and direction of cased well | |
| CN107941137A (en) | Arbitrary angle drilling deformation measurement method | |
| CN219034719U (en) | Deviation correcting device for pipe curtain jacking construction | |
| JP2644963B2 (en) | Measuring device for inner surface of anchor hole | |
| US3238631A (en) | Method and apparatus for clinometric land measurements | |
| CN114577134B (en) | Device and method for monitoring inclination deformation of wide-range all-weather landslide body | |
| CN107340535B (en) | Two-part type underground sensor horizontal adjusting device | |
| CN213932334U (en) | Sensing integrated device and deep well inclination measuring detection monitoring device | |
| CN211262208U (en) | Measuring device for inclination of drilled hole | |
| CN211741611U (en) | Well three-component gravity and magnetic force composite instrument system based on damping metamaterial | |
| CN214276884U (en) | Novel inclinometer integrating inclinometry, torsion measurement and torsion measurement | |
| CN209606630U (en) | Three-component gravimeter and three-component gravimetric prospecting data collection system | |
| CN108344535B (en) | Horizontal effective ground stress test method and test device considering drilling fluid pressure | |
| CN101725341A (en) | Method for logging borehole trace of horizontal well for three-flexible-gyroscope sensor after casing | |
| CN208588447U (en) | Drill underground water level measurement device | |
| CN210774329U (en) | Underground vibration test orientation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |