A triaxial gyro measuring device while drilling

Abstract

The present application is suitable for the field of drilling gyroscopes, and provides a triaxial gyro measuring device for drilling, which comprises gyro branches connected through three sections of steering shafts; the gyro branches are internally provided with azimuth gamma, a gyro system for drilling, a battery and a mud pulse system; wherein the gyro system for drilling comprises a heat preservation carrier provided with an opening at an end and internally provided with a cavity, a cover lid covering the opening of the heat preservation carrier, and a probe pipe installed in the cavity of the heat preservation carrier; a positioning seat is installed at one end of the heat preservation carrier and away from the cover lid; the positioning seat is in contact with the end of the probe pipe through an axial adjusting member to realize fixation of one end; the other end of the probe pipe is in contact with the cover lid to realize fixation of the side; thereby, the present application adopts a three-axis driving steering adjusting structure, can realize adjustment of the feeding direction of the equipment in three directions, and is internally provided with a laser sensor to realize accurate measurement; through provision of an internal probe pipe fixation mode of the gyro system for drilling, the positioning of the probe pipe is ensured.

Description

Technical Field

[0001] This invention relates to the field of drilling gyroscopes, and more particularly to a three-axis gyroscope measurement device for drilling. Background Technology

[0002] Fiber optic gyroscopes possess numerous advantages, including strong environmental adaptability, high reliability, high accuracy, and small size. As one of the most crucial components in inertial measurement and navigation systems, their measurement accuracy directly impacts the overall accuracy of the inertial navigation system. However, existing gyroscopes are limited to two-axis steering (driving only along the X and Y axes), making them unsuitable for horizontal well measurements, especially in wells with inclinations less than 80°.

[0003] Meanwhile, high-temperature calibration of the drilling gyroscope probe involves fixing the probe inside a dedicated thermostatic metal cylinder. By setting different temperature zones, the actual working conditions of the probe downhole are simulated, providing a basis for compensating for temperature drift. This is mainly used to test and calibrate the probe's temperature performance and temperature compensation parameters. To ensure calibration accuracy and heating reliability, the method of probe fixation is particularly important; currently, the probes in high-temperature calibration devices used for drilling gyroscope probes are not properly secured.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0005] To address the aforementioned shortcomings, the present invention aims to provide a three-axis gyroscope measurement device for drilling, which employs a three-axis drive steering adjustment structure, allowing for adjustment of the device's feed direction in three directions. Furthermore, the device is equipped with a laser sensor for precise measurement, and by providing a method for fixing the probe inside the drilling gyroscope system, the positioning of the probe is ensured.

[0006] To achieve the above objectives, the present invention provides a three-axis gyroscope measurement device for drilling, comprising a gyroscope support section connected by three steering shafts; the gyroscope support section internally houses an azimuth gamma, a drilling gyroscope system, a battery, and a mud pulse system; wherein, the drilling gyroscope system includes a heat-insulating carrier with an opening at one end and an internal cavity, a cap covering the opening of the heat-insulating carrier, and a probe installed within the cavity of the heat-insulating carrier; a positioning seat is installed at one end of the heat-insulating carrier away from the cap; the positioning seat is fixed at one end of the probe by contacting the end of the probe with an axial adjustment component; the other end of the probe is fixed at that side by contacting the cap; the axial adjustment component includes a first support column fixed to the positioning seat and a second support column contacting the end of the probe and forming a sleeve structure with the first support column; the first support column and the second support column are connected by a threaded structure; an annular positioning component is provided on the outside of the probe for axial positioning.

[0007] According to the drilling three-axis gyroscope measuring device of the present invention, the cover is fixed to the heat insulation carrier by a threaded connector; wherein, the opening sidewall of the heat insulation carrier and the cover are both provided with threaded holes for the installation of the threaded connector.

[0008] According to the drilling three-axis gyroscope measuring device of the present invention, a support spring is installed between the cover and the probe; the end of the support spring is fixed to the cover.

[0009] According to the drilling three-axis gyroscope measuring device of the present invention, the end of the support spring that contacts the probe is equipped with a first positioning cap; the inner diameter of the first positioning cap is the same as the diameter of the probe.

[0010] According to the drilling three-axis gyroscope measuring device of the present invention, the annular positioning component includes a support ring with an inner ring having a mounting cavity and a plurality of rotating clamping plates installed in the mounting cavity; the rotating clamping plate includes a round protrusion at the position rotation connection and a positioning claw connected thereto and being conical.

[0011] According to the drilling three-axis gyroscope measuring device of the present invention, the support ring is provided with multiple drive holes.

[0012] According to the drilling three-axis gyroscope measuring device of the present invention, the second positioning cap is provided with a slot for corresponding positioning claws.

[0013] This invention provides a three-axis gyroscope measurement device for drilling, comprising a gyroscope support section connected by three steering shafts; the gyroscope support section is equipped with an azimuth gamma, a drilling gyroscope system, a battery, and a mud pulse system; the azimuth gamma is equipped with an infrared sensor for precise positioning; in this application, the traditional two-axis steering is improved to a three-axis drive steering, thereby enabling the gyroscope to drive and steer in the XYZ directions. The drilling gyroscope system includes an insulating carrier with an opening at one end and an internal cavity, a cap that covers the opening of the insulating carrier, and a probe installed inside the cavity of the insulating carrier. The probe is connected to external contacts via wiring to measure temperature and transmit it upwards. A positioning seat is installed at one end of the insulating carrier away from the cap. The positioning seat is fixed at one end of the probe by contacting the end of the probe with an axial adjustment component. The axial adjustment component can be adjusted along the axial length of the insulating carrier to accommodate probes of different lengths. The positioning seat includes a base and multiple fixing plugs at one end. The fixing plugs are inserted into slots inside the insulating carrier to achieve directional positioning (preventing relative rotation) between the insulating carrier and the positioning seat. The other end of the probe is fixed by contacting the cap. Through the above positioning structure, one end of the probe is axially positioned by the axial adjustment component, and the other end is axially positioned by the cap. The axial adjustment component includes a first support column fixed to the positioning seat and a second support column that contacts the end of the probe and forms a sleeve structure with the first support column; the first support column and the second support column are connected by a threaded structure; the first support column is provided with a threaded connection part that mates with the second support column, the threaded connection part is provided with a first thread, the corresponding connection end of the second support column is provided with a cavity that mates with the threaded connection part, and further, the inner wall of the cavity is provided with a second thread that mates with the first thread structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the gyroscope of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the gyroscope of the present invention;

[0016] Figure 3 This is a schematic diagram of the external structure of the drilling gyroscope system of the present invention;

[0017] Figure 4 This is a schematic diagram of the external structure of the drilling gyroscope system of the present invention;

[0018] Figure 5 This is a structural diagram of the slot on the second positioning cap;

[0019] Figure 6 This is a structural diagram of the annular positioning component;

[0020] Figure 7 This is a diagram of the internal structure of the annular positioning component;

[0021] Figure 8 This is a structural diagram of the drive component;

[0022] In the diagram, 100-gyro support, 001-azimuth gamma, 200-steering axis, 002-drilling gyro system, 003-mud pulse system, 004-battery, 1-insulation carrier, 2-cap, 3-positioning seat, 41-first support column, 42-second support column, 43-second positioning cap, 5-support spring, 6-first positioning cap, 7-probe, 8-annular positioning element, 81-support ring, 82-rotating clamping plate, 821-round convexity, 822-positioning claw, 83-drive hole, 90-slot, 92-drive element, 93-L-shaped drive tooth. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0024] See Figure 1 and Figure 2 This invention provides a three-axis gyroscope measurement device for drilling, which includes a gyroscope support section 100 connected by three steering shafts 200. The gyroscope support section 100 internally houses an azimuth gamma ray 001, a drilling gyroscope system 002, a battery 004, and a mud pulse system 003. The azimuth gamma ray 001 is equipped with an infrared sensor for precise positioning. In this application, the traditional two-axis steering is improved to a three-axis driven steering, thereby enabling the gyroscope to be driven and steered in the XYZ directions.

[0025] See Figure 3 and Figure 4The drilling gyroscope system includes a thermal insulation carrier 1 with an opening at one end and an internal cavity, a cover 2 that closes to the opening of the thermal insulation carrier 1, and a probe 7 installed in the cavity of the thermal insulation carrier 1. The probe 7 is connected to external contacts via wiring to measure temperature and transmit it upwards. A positioning seat 3 is installed at one end of the thermal insulation carrier 1 away from the cover 2. The positioning seat 3 is fixed at one end of the probe 7 by contacting the end of the probe 7 through an axial adjustment component. The axial adjustment component can be adjusted in the axial length of the thermal insulation carrier 1 to accommodate probes of different lengths. The positioning seat 3 includes a seat body 31 and multiple fixing plugs 32 at one end. The fixing plugs 32 are inserted into slots inside the thermal insulation carrier 1 to achieve directional positioning (preventing relative rotation) between the thermal insulation carrier 1 and the positioning seat 3. The other end of the probe 7 is fixed by contacting the cover 2. Through the above positioning structure, one end of the probe 7 is axially positioned by the axial adjustment component, and the other end is axially positioned by the cover 2. In this embodiment, the axial adjustment component includes a first support column 41 fixedly connected to the positioning seat 3 and a second support column 42 that contacts the end of the probe 7 and forms a sleeve structure with the first support column 41; the first support column 41 and the second support column 42 are connected by a threaded structure; specifically, the first support column 41 is provided with a threaded connection part that mates with the second support column 42, the threaded connection part is provided with a first thread, the corresponding connection end of the second support column 42 is provided with a cavity that mates with the threaded connection part, and further, the inner wall of the cavity is provided with a second thread that mates with the first thread structure.

[0026] The cover 2 is fixed to the insulation carrier 1 via a threaded connector. Both the opening sidewall of the insulation carrier 1 and the cover 2 have threaded holes for the threaded connector. Alternatively, the cover 2 can be connected to the end of the insulation carrier 1 in other ways, such as by snap-fitting. Furthermore, a support spring 5 is installed between the cover 2 and the probe 7. The end of the support spring 5 is fixed to the cover 2, providing pre-tightening force to ensure the cover 2's positioning has a certain range (when the probe 7 cannot be completely disengaged from the cover 2 within a certain distance, the support spring 5 can compensate for this gap using its elasticity). A first positioning cap 6 is installed at the end of the support spring 5 that contacts the probe 7. The inner diameter of the first positioning cap 6 is the same as the diameter of the probe 7, optimizing the fit between the first positioning cap 6 and the probe 7.

[0027] A second positioning cap 43 is installed at the end of the second support column that contacts the probe tube. The inner diameter of the second positioning cap is the same as the diameter of the probe tube.

[0028] See Figure 1 , 67 and Figure 8 The probe 7 is provided with an annular positioning element 8 on its outer side for axial positioning. The annular positioning element 8 includes a support ring 81 with an inner mounting cavity and multiple rotating clamping plates 82 installed within the mounting cavity. Each rotating clamping plate 82 includes a round protrusion 821 at a rotatable connection point and a conical positioning claw 822 connected thereto. The annular positioning element 8 ensures axial positioning between the probe 7 and the insulation carrier 1. During positioning, the round protrusion 821 contacts the outer wall of the probe 7, driving the support ring 81 to rotate. Under the movement of the support ring 81, the rolling of the round protrusion 821 causes the angle of the positioning claw 822 to change. When the positioning claw 822 rotates to contact the outer wall of the probe 7, it enters the positioning state. To ensure the stability of the positioning state of the positioning claw 822, the outer wall of the annular positioning element 8 is provided with several toothed structures. The outer wall of the thermal insulation carrier 1 (the position of the annular positioning member 8 in its positioning state) is provided with a threaded hole 91 for installing the positioning thread. The end of the threaded connector installed inside it abuts against the toothed structure to achieve the stability of the annular positioning member 8.

[0029] The support ring 81 is provided with multiple driving holes 83, and a driving component 92 drives the support ring 81 to rotate. The driving component is a cylindrical structure, and the end of the cylindrical structure is provided with L-shaped driving teeth 93 that can penetrate into the driving holes 83. During driving, the L-shaped driving teeth 93 at the end of the driving component are inserted into the driving holes 83, and the driving component 92 is rotated by hand to further realize the rotation of the support ring 81.

[0030] See Figure 5 Preferably, to facilitate the axial adjustment of the axial adjustment component (since the axial adjustment component is not easily adjusted when placed inside the insulation carrier 1), the second positioning cap 43 of the present invention is provided with a slot 90 for corresponding positioning claw 822. The annular positioning component 8 is moved to the position of the second positioning cap 43 by the driving component 92, and the support ring 81 is driven to rotate. The end of the positioning claw 822 of the rotating plate 82 engages in the slot 90, and the driving component 92 is continued to drive the second positioning cap 43 by the positioning claw 822.

[0031] In summary, this invention provides a three-axis gyroscope measurement device for drilling, comprising a gyroscope support section connected by three steering shafts; the gyroscope support section is internally equipped with an azimuth gamma, a drilling gyroscope system, a battery, and a mud pulse system, and the azimuth gamma is internally equipped with an infrared sensor for precise positioning; in this application, the traditional two-axis steering is improved to a three-axis drive steering, thereby enabling the gyroscope to be driven and steered in the XYZ directions. The drilling gyroscope system includes an insulating carrier with an opening at one end and an internal cavity, a cap that covers the opening of the insulating carrier, and a probe installed inside the cavity of the insulating carrier. The probe is connected to external contacts via wiring to measure temperature and transmit it upwards. A positioning seat is installed at one end of the insulating carrier away from the cap. The positioning seat is fixed at one end of the probe by contacting the end of the probe with an axial adjustment component. The axial adjustment component can be adjusted along the axial length of the insulating carrier to accommodate probes of different lengths. The positioning seat includes a base and multiple fixing plugs at one end. The fixing plugs are inserted into slots inside the insulating carrier to achieve directional positioning (preventing relative rotation) between the insulating carrier and the positioning seat. The other end of the probe is fixed by contacting the cap. Through the above positioning structure, one end of the probe is axially positioned by the axial adjustment component, and the other end is axially positioned by the cap. The axial adjustment component includes a first support column fixed to the positioning seat and a second support column that contacts the end of the probe and forms a sleeve structure with the first support column; the first support column and the second support column are connected by a threaded structure; the first support column is provided with a threaded connection part that mates with the second support column, the threaded connection part is provided with a first thread, the corresponding connection end of the second support column is provided with a cavity that mates with the threaded connection part, and further, the inner wall of the cavity is provided with a second thread that mates with the first thread structure.

[0032] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A drilling-while-drilling three-axis gyroscope measuring device, characterized in that, It includes a gyro section connected by three steering shafts; the gyro section is equipped with an azimuth gamma, a drilling gyro system, a battery, and a mud pulse system. The drilling gyroscope system includes a thermal insulation carrier with an opening at one end and an internal cavity, a cap that covers the opening of the thermal insulation carrier, and a probe installed in the cavity of the thermal insulation carrier. A positioning seat is installed inside the thermal insulation carrier and at one end away from the cap. The positioning seat is fixed at one end of the probe by contacting the end of the probe with an axial adjustment component. The other end of the probe is fixed at that side by contacting the cap. The axial adjustment component includes a first support column fixedly connected to the positioning seat and a second support column that contacts the end of the probe and forms a sleeve structure with the first support column; the first support column and the second support column are connected by a threaded structure. The outer side of the probe is provided with an annular positioning element for axial positioning. A second positioning cap is installed at the end of the second support column that contacts the probe tube, and the inner diameter of the second positioning cap is the same as the diameter of the probe tube. The annular positioning component includes a support ring with an inner mounting cavity and multiple rotating clamping plates installed in the mounting cavity. The rotating plate includes a round protrusion located at the rotating connection and a cone-shaped positioning claw connected thereto; The support ring is provided with multiple drive holes; The second positioning cap is provided with a slot for the corresponding positioning claw.

2. The drilling-while-drilling three-axis gyroscope measuring device according to claim 1, characterized in that, The cover is fixed to the insulation carrier by a threaded connector; wherein, the opening sidewall of the insulation carrier and the cover are both provided with threaded holes for the installation of the threaded connector.

3. The drilling-while-drilling three-axis gyroscope measuring device according to claim 1, characterized in that, A support spring is installed between the cover and the probe; the end of the support spring is fixed to the cover.

4. The drilling-while-drilling three-axis gyroscope measuring device according to claim 3, characterized in that, A first positioning cap is installed at the end of the support spring that contacts the probe tube; the inner diameter of the first positioning cap is the same as the diameter of the probe tube.

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