CN212985196U - Optical fiber gyroscope continuous inclinometer suitable for high-temperature well logging - Google Patents
Optical fiber gyroscope continuous inclinometer suitable for high-temperature well logging Download PDFInfo
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- CN212985196U CN212985196U CN202021991291.2U CN202021991291U CN212985196U CN 212985196 U CN212985196 U CN 212985196U CN 202021991291 U CN202021991291 U CN 202021991291U CN 212985196 U CN212985196 U CN 212985196U
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Abstract
The utility model discloses a fiber optic gyroscope continuous inclinometer applicable to high temperature logging, which comprises a casing; the mounting framework is a metal cylindrical framework, a Z-axis circular groove is formed in the bottom end of the mounting framework, a Y-axis circular groove is transversely formed in the middle of the mounting framework, and an X-axis circular groove is formed in the side face of the top of the mounting framework; the Z-axis quartz accelerometer is fixed in the Z-axis circular groove through a mounting screw; the Y-axis quartz accelerometer is fixed in the Y-axis circular groove through a mounting screw; the X-axis quartz accelerometer is fixed in the X-axis circular groove through a mounting screw; the bottom end of the triaxial high-temperature fiber optic gyroscope is connected with the top end of the mounting framework through the connecting assembly; a strapdown inertial navigation system is formed by the three-axis high-temperature fiber-optic gyroscope and the three-axis high-temperature quartz accelerometer, the well track is measured in real time by the navigation algorithm, reliable guarantee is provided for slim-hole well track measurement, directional perforation and sidetracking windowing, and the instrument is small in outer diameter and high in temperature resistance.
Description
Technical Field
The utility model relates to a continuous inclinometer technical field of fiber optic gyroscope specifically is a continuous inclinometer of fiber optic gyroscope suitable for high temperature logging.
Background
The gyro inclinometer is a main measuring tool for measuring the well track of an oil well with magnetic interference, sidetracking and windowing and directional perforation. At present, a mechanical gyroscope and an optical fiber gyroscope are mainly adopted at home and abroad as angular velocity sensors to measure the azimuth of a well deviation, and the optical fiber gyroscope has the defects of poor high temperature resistance, poor precision, large drift, large size and the like; the development of the gyro inclinometer is restricted by the defects of complex structure, poor shock resistance, easy damage and the like of the mechanical gyro. Most of gyro inclinometer products on the market adopt a vacuum flask for temperature resistance design, and have the advantages of large outer diameter, short working time and limited engineering application.
Disclosure of Invention
The to-be-solved technical problem of the utility model is overcome current defect, a continuous inclinometer of fiber optic gyroscope suitable for high temperature logging is provided, adopt triaxial high temperature fiber optic gyroscope (125 ℃) and triaxial high temperature quartz accelerometer (150 ℃) to constitute strapdown inertial navigation system, adopt navigation algorithm real-time measurement well track, measure for slim hole track, directional perforation, the sidetracking is windowed and is provided reliable assurance, the instrument external diameter is less, the temperature resistant is high, it is internal to satisfy, outer most oil wells, the orbit of cased well, it is directional, engineering measurement needs such as sidetracking windowing, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a fiber optic gyroscope continuous inclinometer suitable for high temperature logging comprises;
the mounting framework is a metal cylindrical framework, a Z-axis circular groove is formed in the bottom end of the mounting framework, a Y-axis circular groove is transversely formed in the middle of the mounting framework, and an X-axis circular groove is formed in the side face of the top of the mounting framework;
the Z-axis quartz accelerometer is fixed in the Z-axis circular groove through a mounting screw;
the Y-axis quartz accelerometer is fixed in the Y-axis circular groove through a mounting screw;
the X-axis quartz accelerometer is fixed in the X-axis circular groove through a mounting screw;
the bottom end of the triaxial high-temperature fiber optic gyroscope is connected with the top end of the mounting framework through the connecting assembly;
the Z-axis quartz accelerometer, the Y-axis quartz accelerometer and the X-axis quartz accelerometer are orthogonally arranged in space and form a strapdown inertial navigation system together with the three-axis high-temperature optical fiber gyroscope.
Three quartz accelerometers and a three-axis fiber-optic gyroscope are fixed on a metal cylindrical framework and are integrally installed on a metal outer cylinder, the three-axis high-temperature fiber-optic gyroscope (125 ℃) and the three-axis high-temperature quartz accelerometer (150 ℃) form a strapdown inertial navigation system, a navigation algorithm is adopted to measure a well track in real time, the high-temperature three-axis fiber-optic gyroscope collects angular velocity information and calculates a current position posture in real time, and the high-temperature fiber-optic gyroscope continuous inclinometer gets rid of the constraint of a vacuum bottle, so that the measurement of a barefoot well can be carried out, and the measurement of a sleeve and an oil pipe can also be.
Further, coupling assembling includes connecting screw, adapter sleeve and spliced pole, the adapter sleeve is fixed on the top of installation skeleton and with installation skeleton integrated into one piece, the spliced pole is fixed in the bottom of triaxial high temperature fiber optic gyroscope, the adapter sleeve cup joints on the spliced pole, and the side screw threaded connection of adapter sleeve has connecting screw, and the end of connecting screw medial extremity supports the spliced pole.
The connecting sleeve is sleeved on the connecting column, so that the framework and the triaxial high-temperature fiber-optic gyroscope can be conveniently and quickly connected, the connection firmness is increased through the connecting screw, and the connection and the assembly are convenient and quick.
And the top of the upper plug is fixed at the end part of the Z-axis circular groove at the bottom end of the mounting framework through a fixing bolt. Go up the end cap and up to plug up the bottom of Z axle circular slot, avoid causing the quartz accelerometer of Z axle not hard up downwards because of the reason of Z axle circular slot vertical distribution.
Furthermore, the triaxial high-temperature fiber optic gyroscope comprises a metal outer barrel, wherein the bottom end of the metal outer barrel is closed, the top of the metal outer barrel is opened, and the metal outer barrel is sleeved on the outer side of the installation framework and the outer side of the triaxial high-temperature fiber optic gyroscope. The metal outer cylinder realizes the protection effect on the installation framework and the triaxial high-temperature fiber-optic gyroscope.
Further, still include the joint post, the bottom eccentric position at last end cap is fixed to the joint post, and the inboard bottom of metal urceolus is seted up the card hole that corresponds with the joint post. The joint cooperation in joint post and card hole is favorable to improving the firmness that metal urceolus and installation skeleton are connected, avoids installation skeleton and metal urceolus to take place relative rotation.
Furthermore, the triaxial high-temperature fiber optic gyroscope further comprises an external connecting column, wherein the top of the triaxial high-temperature fiber optic gyroscope extends to the outer side of the top of the metal outer barrel and is connected with the external connecting column. The external connecting column facilitates connection of the triaxial high-temperature fiber optic gyroscope and external equipment, the external connecting column can be set to be in a hollow state, and a signal wire for exchanging information is conveniently arranged inside the external connecting column.
Compared with the prior art, the beneficial effects of the utility model are that: this continuous inclinometer of fiber optic gyroscope suitable for high temperature logging has following benefit:
1. the fiber optic gyroscope continuous inclinometer for high temperature logging mainly adopts a three-axis high temperature fiber optic gyroscope (125 ℃) and a three-axis high temperature quartz accelerometer (150 ℃) to form a strapdown inertial navigation system, adopts a navigation algorithm to measure a borehole track in real time, and provides reliable guarantee for slim hole borehole track measurement, directional perforation and sidetracking windowing.
2. The high-temperature triaxial fiber optic gyroscope is used for collecting angular velocity information and resolving the current position attitude in real time, and the high-temperature fiber optic gyroscope continuous inclinometer gets rid of the constraint of a vacuum bottle, so that the measurement of a naked eye well can be carried out, and the measurement can also be carried out in a sleeve and an oil pipe. The method can be used for measurement of old well re-logging, sidetracking windowing, directional perforation and the like, and has a very wide application space.
3. The instrument has smaller outer diameter and high temperature resistance, and meets the engineering measurement requirements of tracks, orientation, sidetracking windowing and the like of most of oil wells and cased wells at home and abroad.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a plug 1, a Z-axis quartz accelerometer 2, an installation framework 3, a Y-axis quartz accelerometer 4, an X-axis quartz accelerometer 5, an installation screw 6, a connecting screw 7, a triaxial high-temperature fiber optic gyroscope 8, a clamping column 9, a metal outer cylinder 10 and an external connecting column 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a fiber optic gyroscope continuous inclinometer suitable for high temperature logging comprises;
the mounting framework 3 is a metal cylindrical framework, a Z-axis circular groove is formed in the bottom end of the mounting framework 3, a Y-axis circular groove is transversely formed in the middle of the mounting framework 3, and an X-axis circular groove is formed in the side face of the top of the mounting framework 3;
the Z-axis quartz accelerometer 2 is fixed in the Z-axis circular groove through a mounting screw 6;
the Y-axis quartz accelerometer 4 is fixed in the Y-axis circular groove through a mounting screw 6;
the X-axis quartz accelerometer 5 is fixed in the X-axis circular groove through a mounting screw 6;
the bottom end of the triaxial high-temperature optical fiber gyroscope 8 is connected with the top end of the mounting framework 3 through a connecting assembly;
the Z-axis quartz accelerometer 2, the Y-axis quartz accelerometer 4 and the X-axis quartz accelerometer 5 are orthogonally installed in space and form a strapdown inertial navigation system together with the three-axis high-temperature fiber-optic gyroscope 8.
Three quartz accelerometers and a three-axis fiber-optic gyroscope are fixed on a metal cylindrical framework and are integrally installed on a metal outer cylinder, the three-axis high-temperature fiber-optic gyroscope (125 ℃) and the three-axis high-temperature quartz accelerometer (150 ℃) form a strapdown inertial navigation system, a navigation algorithm is adopted to measure a well track in real time, the high-temperature three-axis fiber-optic gyroscope collects angular velocity information and calculates a current position posture in real time, and the high-temperature fiber-optic gyroscope continuous inclinometer gets rid of the constraint of a vacuum bottle, so that the measurement of a barefoot well can be carried out, and the measurement of a sleeve and an oil pipe can also be.
The connecting assembly comprises a connecting screw 7, a connecting sleeve and a connecting column, the connecting sleeve is fixed at the top end of the mounting framework 3 and integrally formed with the mounting framework 3, the connecting column is fixed at the bottom end of the triaxial high-temperature fiber-optic gyroscope 8, the connecting sleeve is sleeved on the connecting column, a screw hole in the side face of the connecting sleeve is in threaded connection with the connecting screw 7, and the end part of the inner side of the connecting screw 7 abuts against the connecting column.
The connecting sleeve is sleeved on the connecting column to facilitate quick connection of the framework 3 and the triaxial high-temperature fiber-optic gyroscope 8, the connecting firmness is increased through the connecting screw 7, and the connection and the assembly are convenient and quick.
The installing framework is characterized by further comprising an upper plug 1, wherein the top of the upper plug 1 is fixed at the end part of the Z-axis circular groove at the bottom end of the installing framework 3 through a fixing bolt. Go up end cap 1 and up to plug up the bottom of Z axle circular slot, avoid causing Z axle quartz accelerometer 2 to become flexible downwards because of the reason of Z axle circular slot vertical distribution.
The three-axis high-temperature fiber optic gyroscope is characterized by further comprising a metal outer barrel 10, wherein the bottom end of the metal outer barrel 10 is closed, the top of the metal outer barrel is opened, and the metal outer barrel 10 is sleeved on the outer sides of the installation framework 3 and the three-axis high-temperature fiber optic gyroscope 8. The metal outer cylinder 10 protects the mounting framework 3 and the triaxial high-temperature fiber-optic gyroscope 8.
Still include joint post 9, joint post 9 is fixed in the bottom eccentric position of last end cap 1, and the inboard bottom of metal urceolus 10 is seted up the card hole that corresponds with joint post 9. The joint cooperation in joint post 9 and the card hole is favorable to improving the firmness that metal urceolus 10 and installation skeleton 3 are connected, avoids installation skeleton 3 and metal urceolus 10 to take place relative rotation.
The triaxial high-temperature fiber optic gyroscope is characterized by further comprising an external connecting column 11, wherein the top of the triaxial high-temperature fiber optic gyroscope 8 extends to the outer side of the top of the metal outer cylinder 10 and is connected with the external connecting column 11. The external connecting column 11 facilitates connection of the triaxial high-temperature fiber-optic gyroscope 8 and external equipment, the external connecting column 11 can be set to be in a hollow state, and a signal line for exchanging information is conveniently arranged inside the external connecting column.
The utility model aims at:
the fiber optic gyroscope continuous inclinometer for high temperature logging mainly adopts a three-axis high temperature fiber optic gyroscope (125 ℃) and a three-axis high temperature quartz accelerometer (150 ℃) to form a strapdown inertial navigation system, adopts a navigation algorithm to measure a borehole track in real time, and provides reliable guarantee for slim hole borehole track measurement, directional perforation and sidetracking windowing. A small-diameter high-temperature fiber optic gyroscope is selected, three quartz accelerometers and a three-axis fiber optic gyroscope are fixed on a metal cylindrical framework, and then the three quartz accelerometers and the three-axis fiber optic gyroscope are integrally installed on a metal outer cylinder. The instrument has smaller outer diameter and high temperature resistance, and meets the engineering measurement requirements of tracks, orientation, sidetracking windowing and the like of most of oil wells and cased wells at home and abroad.
The utility model provides a problem:
at present because oil well diameter of a well, thermos size and optic fibre top temperature resistant restriction, the continuous inclinometer diameter of top is big, operating time is short, the utility model discloses use triaxial high temperature optic fibre top and quartz accelerometer, it is big to have solved measuring error under the top high temperature, and temperature adaptability is poor, and the limited scheduling problem of size is used in the engineering for optic fibre top continuous inclinometer becomes among the oil well position inclinometry most economical, the most reliable and the most important test means.
The high-temperature optical fiber gyroscope continuous inclinometer collects angular velocity information by adopting a high-temperature triaxial optical fiber gyroscope, solves the current position posture in real time, gets rid of the constraint of a vacuum flask, and can be used for open hole measurement and measurement in a sleeve and an oil pipe. The method can be used for measurement of old well re-logging, sidetracking windowing, directional perforation and the like, and has a very wide application space.
It is noted that the connecting screw 7 and the fixing bolt disclosed in the present embodiment are both M5 screws, and the mounting screw 6 is M2 screws, and other non-exhaustive aspects of the present invention are all implemented by conventional techniques known to those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a continuous inclinometer of fiber optic gyroscope suitable for high temperature logging which characterized in that: comprises the following steps of;
the mounting framework (3) is a metal cylindrical framework, a Z-axis circular groove is formed in the bottom end of the mounting framework (3), a Y-axis circular groove is transversely formed in the middle of the mounting framework (3), and an X-axis circular groove is formed in the side face of the top of the mounting framework (3);
the Z-axis quartz accelerometer (2) is fixed in the Z-axis circular groove through a mounting screw (6);
the Y-axis quartz accelerometer (4) is fixed in the Y-axis circular groove through a mounting screw (6);
the X-axis quartz accelerometer (5) is fixed in the X-axis circular groove through a mounting screw (6);
the bottom end of the triaxial high-temperature optical fiber gyroscope (8) is connected with the top end of the mounting framework (3) through a connecting assembly;
the Z-axis quartz accelerometer (2), the Y-axis quartz accelerometer (4) and the X-axis quartz accelerometer (5) are orthogonally installed in space and form a strapdown inertial navigation system with the three-axis high-temperature fiber-optic gyroscope (8).
2. The fiber optic gyroscope continuous inclinometer suitable for high temperature logging according to claim 1, characterized in that: coupling assembling includes connecting screw (7), adapter sleeve and spliced pole, the adapter sleeve is fixed on the top of installation skeleton (3) and with installation skeleton (3) integrated into one piece, and the spliced pole is fixed in the bottom of triaxial high temperature fiber optic gyro (8), the adapter sleeve cup joints on the spliced pole, and the side screw female connection of adapter sleeve has connecting screw (7), and connecting screw (7) medial extremity supports the spliced pole.
3. The fiber optic gyroscope continuous inclinometer suitable for high temperature logging according to claim 1, characterized in that: the installing framework is characterized by further comprising an upper plug (1), wherein the top of the upper plug (1) is fixed at the end part of the Z-axis circular groove at the bottom end of the installing framework (3) through a fixing bolt.
4. The fiber optic gyroscope continuous inclinometer suitable for high temperature logging according to claim 1, characterized in that: the three-axis high-temperature fiber optic gyroscope is characterized by further comprising a metal outer barrel (10), wherein the bottom end of the metal outer barrel (10) is closed, the top of the metal outer barrel is opened, and the metal outer barrel (10) is sleeved on the outer sides of the installation framework (3) and the three-axis high-temperature fiber optic gyroscope (8).
5. A fiber optic gyro continuous inclinometer suitable for high temperature logging according to claim 3 or 4, characterized in that: still include joint post (9), joint post (9) are fixed in the bottom eccentric position of last end cap (1), and the inboard bottom of metal urceolus (10) is seted up the card hole that corresponds with joint post (9).
6. The fiber optic gyroscope continuous inclinometer suitable for high temperature logging according to claim 4, characterized in that: the triaxial high-temperature fiber optic gyroscope is characterized by further comprising an external connecting column (11), wherein the top of the triaxial high-temperature fiber optic gyroscope (8) extends to the outer side of the top of the metal outer barrel (10) and is connected with the external connecting column (11).
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| CN202021991291.2U CN212985196U (en) | 2020-09-14 | 2020-09-14 | Optical fiber gyroscope continuous inclinometer suitable for high-temperature well logging |
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| CN202021991291.2U CN212985196U (en) | 2020-09-14 | 2020-09-14 | Optical fiber gyroscope continuous inclinometer suitable for high-temperature well logging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043248A (en) * | 2019-05-31 | 2019-07-23 | 西南石油大学 | A kind of measurement pipe nipple of full posture MWD inclination measurement device |
| CN118391012A (en) * | 2024-06-27 | 2024-07-26 | 北京航空航天大学 | Rotary pilot bit attitude measurement device based on fiber optic gyroscope |
-
2020
- 2020-09-14 CN CN202021991291.2U patent/CN212985196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043248A (en) * | 2019-05-31 | 2019-07-23 | 西南石油大学 | A kind of measurement pipe nipple of full posture MWD inclination measurement device |
| CN118391012A (en) * | 2024-06-27 | 2024-07-26 | 北京航空航天大学 | Rotary pilot bit attitude measurement device based on fiber optic gyroscope |
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Effective date of registration: 20220812 Address after: 100070, No. 39, No. 12, No. 188, South Fourth Ring Road, Beijing, Fengtai District Patentee after: BEIJING LIUHE GREATNESS TECHNOLOGY Co.,Ltd. Address before: Room 2404, block B, Haiyi international, Fengcheng 5th Road, economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee before: Xi'an Tianke mingchuang Petroleum Technology Service Co.,Ltd. |