CN203584414U - Fiber-optic gyroscope clinometer - Google Patents
Fiber-optic gyroscope clinometer Download PDFInfo
- Publication number
- CN203584414U CN203584414U CN201320581504.8U CN201320581504U CN203584414U CN 203584414 U CN203584414 U CN 203584414U CN 201320581504 U CN201320581504 U CN 201320581504U CN 203584414 U CN203584414 U CN 203584414U
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- CN
- China
- Prior art keywords
- optical fibre
- fibre gyro
- fiber
- optic gyroscope
- pipe nipple
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Abstract
The utility model provides a fiber-optic gyroscope clinometer comprising a rope socket, a cable crossover coupling, a centralizer, a fiber-optic gyroscope probe and a shock absorber which are sequentially connected through a screw thread from top to bottom. The outer diameter of the whole clinometer is at most 35 millimeters. The fiber-optic gyroscope probe is of a two-stage structure comprising a fiber-optic gyroscope short section and a circuit short section which are connected through a connector, north is sought at four positions by a single connecting shaft, a stepping motor is used for positioning, and precision reaches 0.1 degree. The fiber-optic gyroscope clinometer is firm, stable, small in outer diameter, resistant to impact, high in detection sensitivity and resolution ratio and long in service life, and signals are stable.
Description
Technical field
The utility model relates to the optic fiber gyroscope inclinometer in drilling engineering deviational survey field in oil, colliery and geological prospecting.
Background technology
Welcome, especially old well reform, the Multilateral Wells etc. that the gyrolevel using in petroleum drilling engineering at present is not subject to magnetic interference to be subject to user when carrying out trajectory measurement has the measurement environment of sleeve pipe.The gyrolevel critical piece generally using on market is gyroscope, traditional inertial gyroscope mainly refers to mechanical gyroscope, mechanical gyroscope is very high to the requirement of process structure, complex structure, its precision has been subject to very many-sided restriction, in addition use procedure not antivibration, have wearing and tearing, the life-span is generally about 1000 hours.Along with petroleum drilling engineering difficulty of construction is increasing, original gyrolevel is from precision and be difficult to meet user's needs application life.
Summary of the invention
In order to solve, existing gyrolevel precision is low, not antivibration, short problem of life-span, the utility model provides optic fiber gyroscope inclinometer, critical piece fibre optic gyroscope, movement-less part, instrument firm stable, shock-resistant, detection sensitivity and resolution 10rad/s, life-span is long, signal stabilization, thus meet greatly client's needs.
The utility model solves the technical scheme that its technical problem adopts: optic fiber gyroscope inclinometer by rope socket head, cable crossover sub, centralizer, optical fibre gyro inserting tube, damper from top to bottom order with screwed connection, form.Instrument complete machine external diameter is no more than 35 millimeters.Optical fibre gyro inserting tube forms two-part structure by optical fibre gyro pipe nipple and circuit pipe nipple, by connector, connect, non-linear corrected parameter, temperature corrected parameter and mechanical erection corrected parameter are recorded in the sensor chip of optical fibre gyro pipe nipple, during again by two pipe nipple docking, optical fibre gyro sensor parameters is written in circuit pipe nipple microprocessor chip, thereby realize circuit pipe nipple and optical fibre gyro pipe nipple and be not only one-to-one correspondence, circuit pipe nipple can be general, easy to maintenance.Optical fibre gyro inserting tube is by single connecting axle four position Xun Bei, and stepper motor is located, and precision reaches 0.1 degree.Centralizer is for righting optic fiber gyroscope inclinometer position, and damper is the hydraulic damping device of a piston structure, and the impact force while arriving shaft bottom for alleviating gyrolevel, prevents instrument damage.
The beneficial effect of this utility model has: optical fiber spiral shell gyro inclinometer firm stable, and external diameter is little, shock-resistant, and detection sensitivity and resolution ratio are high, and the life-span is long, signal stabilization.
Accompanying drawing explanation
Fig. 1 is the utility model apparatus structure schematic diagram.
Fig. 2 is optical fibre gyro inserting tube structural representation.
Fig. 3 is optical fibre gyro pipe nipple internal construction schematic diagram.
In figure: 1 rope socket head, 2 cable crossover subs, 3 centralizers, 4 optical fibre gyro inserting tubes, 5 dampers, 6 circuit pipe nipples, 7 connectors, 8 optical fibre gyro pipe nipples, 9 stepper motors, 10 connecting axles, 11 acceleration transducers, 12 optical fibre gyro sensors, 13 bearings.
The specific embodiment
In order to make those skilled in the art person understand better the scheme of the utility model embodiment, below in conjunction with drawings and embodiments, the utility model embodiment is described in further detail.
First, with reference to Fig. 1, it is the utility model apparatus structure schematic diagram 1, in Fig. 1, optic fiber gyroscope inclinometer is comprised of rope socket head (1), cable crossover sub (2), centralizer (3), optical fibre gyro inserting tube (4), centralizer (2), damper (5), order forms with screwed connection from top to bottom, and instrument complete machine external diameter is no more than 35 millimeters.Centralizer is for righting optic fiber gyroscope inclinometer position, and damper is the hydraulic damping device of a piston structure, and the impact force while arriving shaft bottom for alleviating gyrolevel, prevents instrument damage.
With reference to Fig. 2, optical fibre gyro inserting tube (4) forms two-part structure by optical fibre gyro pipe nipple (8), circuit pipe nipple (6), by connector (7), connect, non-linear corrected parameter, temperature corrected parameter and mechanical erection corrected parameter are recorded in the sensor chip of optical fibre gyro pipe nipple, during again by two pipe nipple docking, optical fibre gyro sensor parameters is written in circuit pipe nipple microprocessor chip, thereby realize circuit pipe nipple and optical fibre gyro pipe nipple and be not only one-to-one correspondence, circuit pipe nipple can be general, easy to maintenance.
With reference to Fig. 3, optical fibre gyro pipe nipple is comprised of stepper motor (9), connecting axle (10), acceleration transducer (11), optical fibre gyro sensor (12), bearing (13), by connecting axle (10) by each assembling parts together.By single connecting axle (10) four position Xun Bei, stepper motor (9) location, precision reaches 0.1 degree.
During complete machine work, first on ground, instrument is connected, use cable reel that instrument is transferred to position to be measured, then start optic fiber gyroscope inclinometer and carry out data acquisition, after measurement completes, transfer to tested point once and measure, carry the repetition measurement that instrument carries out tested point on after instrument arrives shaft bottom, take out instrument after being pulled to ground, read gathered data, and carry out the drafting of wellbore trajectory figure.
Above the utility model examples of implementation are described in detail, have applied the specific embodiment herein the utility model is set forth, the explanation of above examples of implementation is just for helping to understand system and method for the present utility model; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (4)
1. optic fiber gyroscope inclinometer, is characterized in that sequentially with screwed connection, being comprised of from top to bottom rope socket head, cable crossover sub, centralizer, optical fibre gyro inserting tube, damper.
2. optic fiber gyroscope inclinometer according to claim 1, is characterized in that instrument complete machine external diameter is no more than 35 millimeters.
3. optic fiber gyroscope inclinometer according to claim 1, is characterized in that optical fibre gyro inserting tube forms two-part structure by optical fibre gyro pipe nipple and circuit pipe nipple, connects by connector.
4. optic fiber gyroscope inclinometer according to claim 1, optical fibre gyro inserting tube described in it is characterised in that optical fibre gyro pipe nipple is comprised of stepper motor, connecting axle, acceleration transducer, optical fibre gyro sensor, bearing, by connecting axle by each assembling parts together, by single connecting axle four position Xun Bei, stepper motor location, precision reaches 0.1 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581504.8U CN203584414U (en) | 2013-09-18 | 2013-09-18 | Fiber-optic gyroscope clinometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581504.8U CN203584414U (en) | 2013-09-18 | 2013-09-18 | Fiber-optic gyroscope clinometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584414U true CN203584414U (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320581504.8U Expired - Lifetime CN203584414U (en) | 2013-09-18 | 2013-09-18 | Fiber-optic gyroscope clinometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644974A (en) * | 2019-10-28 | 2020-01-03 | 贵州航天凯山石油仪器有限公司 | Method for preventing continuous gyrometer from rotating in oil well |
| CN111780741A (en) * | 2020-07-01 | 2020-10-16 | 武汉京天智光科技有限公司 | Microminiature optical fiber gyroscope for inclination measurement |
-
2013
- 2013-09-18 CN CN201320581504.8U patent/CN203584414U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644974A (en) * | 2019-10-28 | 2020-01-03 | 贵州航天凯山石油仪器有限公司 | Method for preventing continuous gyrometer from rotating in oil well |
| CN110644974B (en) * | 2019-10-28 | 2023-06-20 | 贵州航天凯山石油仪器有限公司 | Method for preventing continuous gyro inclinometer from autorotation in oil well |
| CN111780741A (en) * | 2020-07-01 | 2020-10-16 | 武汉京天智光科技有限公司 | Microminiature optical fiber gyroscope for inclination measurement |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |