CN201934095U - Gyro incline-typed tri-component borehole gauge - Google Patents
Gyro incline-typed tri-component borehole gauge Download PDFInfo
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- CN201934095U CN201934095U CN2011200394645U CN201120039464U CN201934095U CN 201934095 U CN201934095 U CN 201934095U CN 2011200394645 U CN2011200394645 U CN 2011200394645U CN 201120039464 U CN201120039464 U CN 201120039464U CN 201934095 U CN201934095 U CN 201934095U
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- gauge
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- instrument
- probe
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Abstract
The utility model discloses a gyro incline-typed tri-component borehole gauge, which comprises an underground gauge and a ground gauge, wherein the underground gauge includes a coil outlet joint (1), a probe (2) and an outer pressure-bearing pipe (3) covered on the outside of the probe (2). A front end of the outer pressure-bearing pipe (3) and a rear end of the outer pressure-bearing pipe (3) are respectively covered with a protection assembly (4); the coil outlet joint (1) passes the protection assembly (4) arranged at the front end of the outer pressure-bearing pipe (3) to be connected with the probe (2). The probe (2) includes a secondary power bay (2a), a digital circuit bay (2b), a rotating coasting body (2c), a short mechanical connection section (2d) and a triaxial magnetometer (2e) which are arranged in sequence, wherein an accelerometer and a gyroscope are arranged in the rotating coasting body (2c). The gyro incline-typed tri-component borehole gauge uses the gyroscope to measure the rate component of the angle of the earth rotation, uses the accelerometer to measure the earth weight component, and further determines a well deflection inclination azimuth angle of a point in the well, and has the advantages of good stability and high accuracy for being free of the effect of magnetic interference.
Description
Technical field
The utility model relates to geological prospecting and looks for the ore deposit industry, specifically, is a kind of three-component instrument that the ore deposit is looked in the down-hole that is used for.
Background technology
The three-component instrument mainly is made of three axis magnetometer, two-axis inclinometer, data acquisition counting circuit etc. in the conventional well, utilize the magnetometer survey magnetic field of the earth, utilize the dipmeter survey angle of slope, utilizing the data acquisition counting circuit that magnetic field of the earth data and angle of slope data are built touches, obtain hole angle and drift azimuth, and calculate three components in magnetic field, down-hole by coordinate transform, be vertical component and two horizontal components, utilize three component parameters in magnetic field, down-hole to look for the ore deposit operation to instruct geological prospecting.But in the actual job process, the down-hole often exists magnetic anomaly, blind ore and magnet ore body, they have directly influenced the measurement of three axis magnetometer to the magnetic field of the earth, to such an extent as to be difficult to obtain drift azimuth accurately, so the three-component instrument can't calculate under the magnetic disturbance environment and export three components in magnetic field, down-hole accurately in the conventional well, is difficult to the scientific and effective field engineering operation of instructing.
The utility model content
The purpose of this utility model provides three-component instrument in a kind of well that is not subjected to magnetic disturbance, can obtain drift azimuth accurately.
For solving above technical problem, three-component instrument in the gyroscopic survey formula well that the utility model provides, comprise down-hole instrument and ground instrument, key is: described down-hole instrument comprises wire terminal (1), inserting tube (2) and covers on the pressure-bearing outer tube (3) in described inserting tube (2) outside, the rear and front end of described pressure-bearing outer tube (3) all is covered with protection assembly (4), describedly goes out the protection assembly (4) that wire terminal (1) passes pressure-bearing outer tube (3) front end and links to each other with described inserting tube (2); Described inserting tube (2) comprises the secondary power supply cabin (2a) that sets gradually, digital circuit cabin (2b), rotatory inertia body (2c), mechanical connection pipe nipple (2d) and three axis magnetometer (2e), the outside of described secondary power supply cabin (2a) and digital circuit cabin (2b) is covered with circuit supporting frame (2f), between described circuit supporting frame (2f) and the rotatory inertia body (2c), between rotatory inertia body (2c) and the mechanical connection pipe nipple (2d), be connected by joint (2g) between mechanical connection pipe nipple (2d) and the three axis magnetometer (2e), be provided with accelerometer and gyroscope in the described rotatory inertia body (2c).
Be provided with connector (2h) in the joint (2g) between described secondary power supply cabin (2a) and digital circuit cabin (2b).Carry out plug by connector and connect, be convenient to make and install.
The utility model utilizes gyroscope survey earth rotation angular speed component, realizes seeking north automatically, utilizes accelerometer measures terrestrial gravitation component, and then the drift azimuth of certain point in definite well mark.Because drift azimuth can accurately obtain, just can accurately obtain three-component parameter in the well in conjunction with hole angle, and then draw out accurately magnetic vector figure in the well, instruct exploration operation, improve the success rate of geological prospecting operation.Its beneficial effect is:
1) counts main sensor with gyroscope, accelerometer, magnetic strength, little, as the not to be subjected to magnetic disturbance influence of drifting about, can seek north automatically, good stability, precision height.
2) by structures such as protection assembly, pressure-bearing outer tubes, improve resistance to compression, antivibration, the impact resistance of instrument, satisfy round-the-clock instructions for use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 be Fig. 1 be divided into three sections and amplify after schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Three-component instrument in a kind of gyroscopic survey formula well is made up of down-hole instrument and ground instrument.Be illustrated in figure 1 as the whole structure figure of down-hole instrument, Fig. 2 be with the down-hole instrument be divided into three sections and amplify after structural representation.
In conjunction with Fig. 1, Fig. 2 as can be known, the down-hole instrument is formed by going out wire terminal 1, inserting tube 2, pressure-bearing outer tube 3 and two protection assemblies 4.Pressure-bearing outer tube 3 covers on the outside of inserting tube 2, and a protection assembly 4 covers on the front end of pressure-bearing outer tube 3, and another protection assembly 4 covers on the rear end of pressure-bearing outer tube 3, and the three is combined into a shell inserting tube 2 is wrapped in wherein with protection inserting tube 2.An end that goes out wire terminal 1 is positioned at outside the protection assembly 4 of pressure-bearing outer tube 3 front ends, and the protection assembly 4 that the other end passes pressure-bearing outer tube 3 front ends links to each other with inserting tube 2.
Inserting tube 2 is made up of secondary power supply cabin 2a, digital circuit cabin 2b, rotatory inertia body 2c, mechanical connection pipe nipple 2d, three axis magnetometer 2e, circuit supporting frame 2f and joint 2g.Secondary power supply cabin 2a, digital circuit cabin 2b, rotatory inertia body 2c, mechanical connection pipe nipple 2d, three axis magnetometer 2e set gradually from front to back, and circuit supporting frame 2f covers on the outside of secondary power supply cabin 2a and digital circuit cabin 2b.Between circuit supporting frame 2f and the rotatory inertia body 2c, between rotatory inertia body 2c and the mechanical connection pipe nipple 2d, be connected by joint 2g between mechanical connection pipe nipple 2d and the three axis magnetometer 2e.
As preferably, be provided with connector 2h among the joint 2g between secondary power supply cabin 2a and the digital circuit cabin 2b.
Claims (2)
1. three-component instrument in the gyroscopic survey formula well, comprise down-hole instrument and ground instrument, it is characterized in that: described down-hole instrument comprises wire terminal (1), inserting tube (2) and covers on the pressure-bearing outer tube (3) in described inserting tube (2) outside, the rear and front end of described pressure-bearing outer tube (3) all is covered with protection assembly (4), describedly goes out the protection assembly (4) that wire terminal (1) passes pressure-bearing outer tube (3) front end and links to each other with described inserting tube (2); Described inserting tube (2) comprises the secondary power supply cabin (2a) that sets gradually, digital circuit cabin (2b), rotatory inertia body (2c), mechanical connection pipe nipple (2d) and three axis magnetometer (2e), the outside of described secondary power supply cabin (2a) and digital circuit cabin (2b) is covered with circuit supporting frame (2f), between described circuit supporting frame (2f) and the rotatory inertia body (2c), between rotatory inertia body (2c) and the mechanical connection pipe nipple (2d), be connected by joint (2g) between mechanical connection pipe nipple (2d) and the three axis magnetometer (2e), be provided with accelerometer and gyroscope in the described rotatory inertia body (2c).
2. according to three-component instrument in the described gyroscopic survey formula of claim 1 well, it is characterized in that: be provided with connector (2h) in the joint (2g) between described secondary power supply cabin (2a) and digital circuit cabin (2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200394645U CN201934095U (en) | 2011-02-16 | 2011-02-16 | Gyro incline-typed tri-component borehole gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200394645U CN201934095U (en) | 2011-02-16 | 2011-02-16 | Gyro incline-typed tri-component borehole gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934095U true CN201934095U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200394645U Expired - Fee Related CN201934095U (en) | 2011-02-16 | 2011-02-16 | Gyro incline-typed tri-component borehole gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457747A (en) * | 2014-12-12 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Mining gyro attitude measuring instrument |
-
2011
- 2011-02-16 CN CN2011200394645U patent/CN201934095U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457747A (en) * | 2014-12-12 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Mining gyro attitude measuring instrument |
| CN104457747B (en) * | 2014-12-12 | 2017-04-19 | 中煤科工集团重庆研究院有限公司 | Mining gyro attitude measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20130216 |