CN106837311B - Downhole testing device for preventing braking tool - Google Patents
Downhole testing device for preventing braking tool Download PDFInfo
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- CN106837311B CN106837311B CN201710093943.7A CN201710093943A CN106837311B CN 106837311 B CN106837311 B CN 106837311B CN 201710093943 A CN201710093943 A CN 201710093943A CN 106837311 B CN106837311 B CN 106837311B
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- sleeve
- shell
- testing device
- braking
- pressure transmission
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Abstract
The invention discloses an underground testing device for a brake-proof tool, which comprises a shell and a mandrel arranged in the shell, wherein the upper end of the mandrel is in sealed configuration with an inner hole of the shell, an annular cavity is arranged between the mandrel and the shell, a battery pack, a displacement sensor and an analog quantity acquisition module are sequentially arranged in the annular cavity, a pressure transmission sleeve is arranged below the analog quantity acquisition module, the upper end of the pressure transmission sleeve is axially limited through the shell, a pressure sensor and a sealing sleeve are sleeved on the mandrel, and a balance sleeve is sleeved outside the sealing sleeve. The invention can work with the anti-braking tool in the underground, and can carry out real-time dynamic test, analyze the force and bit displacement when the anti-braking tool relieves the braking of the bit when the bit slips through the measurement while drilling with the anti-braking tool, dynamically monitor the working conditions of the anti-braking tool and the bit in the underground in real time, and carry out data acquisition in time, thereby ensuring the reliable and effective work of the anti-braking tool in the underground.
Description
Technical Field
The invention relates to a testing tool, in particular to an underground testing device for preventing a braking tool.
Background
For some strata with serious drill bit slippage, motor braking and equipment failure can even be caused when the drill bit is severely blocked to finally cause low mechanical drilling speed. The anti-braking tool can effectively absorb torque change caused by slipping through the combination of the spiral spline and the disc spring, and can lift the drill bit upwards.
In order to ensure that the anti-braking tool can reliably and effectively work underground when the drill bit slips, an underground testing device is designed on the anti-braking tool, and the working state of the anti-braking tool underground and the slip condition of the drill bit can be dynamically monitored in real time through the underground testing device.
Disclosure of Invention
The invention aims to solve the technical problem of providing the underground testing device for the anti-braking tool aiming at the defects in the prior art, the device is modified to dynamically monitor the underground working conditions of the anti-braking tool and a drill bit in real time, so as to acquire data in time and ensure that the anti-braking tool works reliably and effectively underground.
The technical scheme adopted by the invention is as follows: the utility model provides a prevent downhole testing device of braking instrument which characterized in that: the pressure sensor comprises a shell and a mandrel arranged in the shell, wherein the upper end of the mandrel is in sealed configuration with an inner hole of the shell, an annular cavity is arranged between the mandrel and the shell, a battery pack, a displacement sensor and an analog quantity acquisition module are sequentially arranged in the annular cavity, a pressure transmission sleeve is arranged below the analog quantity acquisition module, the upper end of the pressure transmission sleeve is axially limited through the shell, a pressure sensor and a sealing sleeve are sleeved on the mandrel positioned at the lower end of the pressure transmission sleeve, a balance sleeve is sleeved outside the sealing sleeve, the inner wall of the balance sleeve is in sealed configuration with the sealing sleeve, the upper end of the balance sleeve corresponds to the pressure transmission sleeve, the sealing sleeve and the pressure sensor are axially limited by the end part of the mandrel, and the pressure sensor and the displacement sensor are.
According to the technical scheme, the shell comprises an upper connector and a thread protecting sleeve, and the upper end of the pressure transmission sleeve is axially limited through the lower end head of the upper connector.
According to the technical scheme, the mandrel comprises a test guide rod and a wire protection shaft, the upper end of the wire protection shaft is in threaded connection with the test guide rod, and the pressure transmission sleeve, the pressure sensor and the seal sleeve are respectively sleeved on the wire protection shaft.
According to the technical scheme, the pressure transmission sleeve is provided with the pressure transmission hole, and the pressure transmission hole is an axial through hole.
According to the technical scheme, the lower end faces of the sealing sleeve and the balance sleeve are respectively provided with an inclined plane.
According to the technical scheme, the shell is provided with the aviation socket corresponding to the analog quantity acquisition module, the aviation socket is provided with the aviation plug-in, and the aviation plug-in is sealed through the communication port end cover.
According to the technical scheme, in the using process, after the thread protecting shaft and the thread protecting sleeve are respectively screwed off, the testing device is connected with the anti-braking tool, the anti-braking tool comprises a butterfly-shaped guide rod, a butterfly spring is sleeved outside the butterfly-shaped guide rod, a spiral spline sleeve is arranged at the lower end of the butterfly-shaped guide rod, a shell is connected to the outside of the spiral spline sleeve, a spiral spline shaft is sleeved inside the spiral spline sleeve, spiral teeth arranged on the outer wall of the lower end of the spiral spline shaft are meshed with spiral teeth arranged on the inner wall of the spiral spline sleeve, when the testing device is used, the pressure transmission sleeve, the pressure sensor, the sealing sleeve and the balance sleeve are arranged on the butterfly-shaped guide rod, the end portion of the sealing sleeve is abutted against the butterfly spring, and the shell is connected with an upper joint of the.
According to the technical scheme, the end part of the butterfly-shaped guide rod is provided with the reducing end with the inner diameter increased, the reducing end part forms a step surface, and the lower end of the butterfly-shaped spring is abutted to the step surface.
In the use process, after the thread protection shaft and the thread protection sleeve are respectively screwed off, the testing device is connected with the anti-braking tool, when the drill bit is clamped and slid and is braked, the torque value of the drill bit is converted into axial force through meshing transmission between the threaded spline shaft and the threaded spline sleeve, the threaded spline shaft pushes the disc spring guide rod to compress the disc spring, and the pressure sensor tests the pressure of the disc spring. The disc spring guide rod pushes the test guide rod to make axial displacement, and the displacement sensor is compressed to measure the upward displacement value of the drill bit.
The spiral spline shaft and the spiral spline sleeve are meshed to push the spiral spline shaft to move upwards in the axial direction, the grouped disc springs sleeved on the disc spring guide rods are compressed, the disc springs generate pressure and transmit the pressure to the pressure sensor, and the pressure sensor tests the braking force of the drill bit during braking. When the disc spring guide rod drives the test guide rod to move axially, the displacement sensor is pushed to compress, and when the axial displacement of the drill bit is tested to be relieved, the working conditions of the anti-braking tool and the drill bit in the underground can be dynamically monitored in real time, data acquisition is carried out in time, and the reliable and effective work of the anti-braking tool in the underground is guaranteed.
The beneficial effects obtained by the invention are as follows:
1. the device works simultaneously with the anti-braking tool in the underground, carries out real-time dynamic test, analyzes the force and the bit displacement when the anti-braking tool relieves the braking of the bit when the bit slips through the while-drilling test of the anti-braking tool, can dynamically monitor the working conditions of the anti-braking tool and the bit in the underground in real time, carries out data acquisition in time, and ensures that the anti-braking tool works reliably and effectively in the underground.
2. The testing device is simple in overall structure, easy to realize, long in underground service life, capable of meeting the requirement of the braking prevention tool for long-time continuous work underground, capable of being disassembled and stored in a complete set after the testing device is used, and convenient to install, disassemble and store.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a schematic view of the usage state of the present invention.
Fig. 3 is a front cross-sectional view of a pressure transfer jacket of the present invention.
Fig. 4 is a top view of a pressure transfer jacket of the present invention.
Fig. 5 is a front sectional view of the balance sleeve of the present invention.
Figure 6 is a front cross-sectional view of the boot seal of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 6, the present embodiment provides a downhole testing device of a braking prevention tool, including a housing and a mandrel installed in the housing, where the housing is composed of an upper joint 1 and a thread protection sleeve 21, which are connected by a thread, the mandrel is composed of a testing guide rod 4 and a thread protection shaft 19, the upper end of the testing guide rod 4 and an inner hole of the housing are configured by a sealing ring 2, a wear-resistant ring 3 is disposed between the testing guide rod and the upper joint 1 and at the lower end of the sealing ring 2, an annular cavity is disposed between the upper joint 1 and the testing guide rod, a battery pack 9, a displacement sensor 11 and an analog quantity acquisition module 12 are sequentially disposed in the annular cavity, a pressure transmission sleeve 13 is disposed below the analog quantity acquisition module 12, and a pressure transmission hole is disposed on the pressure transmission sleeve 13, and is an axial through hole. The upper end of the pressure transmission sleeve 13 is axially limited through the upper joint 1 and is sleeved on a wire protection shaft 19, the wire protection shaft 19 positioned at the lower end of the pressure transmission sleeve 13 is sleeved with a pressure sensor 14 and a sealing sleeve 18, the sealing sleeve 18 is sleeved with a balance sleeve 15, the inner wall of the balance sleeve 15 and the sealing sleeve 18 are in sealing configuration through a sealing ring 16, a wear-resisting ring 17 is further arranged between the inner wall of the balance sleeve 15 and the sealing sleeve 18, the balance sleeve 15 can axially slide relative to the sealing sleeve 18, the upper end of the balance sleeve 15 corresponds to the pressure transmission sleeve 13, the end part of the wire protection shaft 19 is provided with a flange, the sealing sleeve 18 and the pressure sensor 14 are axially limited through the flange of the mandrel, and the pressure transmission sleeve 13 is used for limiting the pressure sensor to axially move in. The pressure sensor 14 and the displacement sensor 11 are respectively connected with the analog quantity acquisition module 12. The battery pack 9 can continuously supply power to the displacement sensor 11 and the pressure sensor 14 so as to meet the requirement that the displacement sensor and the pressure sensor work for a long time in the underground.
An aviation socket is arranged on the upper connector 1 corresponding to the analog quantity acquisition module, an aviation plug-in is arranged on the aviation socket, and the aviation plug-in is sealed through a communication port end cover.
In the using process, after the thread protecting shaft 19 and the thread protecting sleeve 21 are respectively screwed off, the testing device is connected with an anti-braking tool, as shown in fig. 2, the anti-braking tool comprises a butterfly-shaped guide rod 22, a butterfly spring 23 is sleeved outside the butterfly-shaped guide rod 22, a reducing end with the inner diameter being increased is arranged at the end part of the butterfly-shaped guide rod 22, the reducing end part forms a step surface, and the lower end of the butterfly spring is abutted against the step surface. The lower end of the butterfly-shaped guide rod 22 is provided with a spiral spline housing 25, the outer part of the spiral spline housing 25 is connected with a shell 24, a spiral spline shaft 26 is sleeved in the spiral spline housing 25, spiral teeth arranged on the outer wall of the lower end of the spiral spline shaft 26 are meshed with spiral teeth arranged on the inner wall of the spiral spline housing 25, and the lower end of the spiral spline housing 25 is provided with a lower joint 28. When the testing device is used, the pressure transmission sleeve 13, the pressure sensor 14, the sealing sleeve 18 and the balance sleeve 15 are arranged on the butterfly-shaped guide rod 22, the testing guide rod 4 of the testing device is in threaded connection with the butterfly-shaped spring guide rod 22, the end part of the sealing sleeve 18 is abutted against the butterfly-shaped spring 23, and the upper connector 1 is in threaded connection with the shell 24. The working mode is as follows: when the drill bit brakes, the meshing transmission between the spiral spline shaft 22 and the spiral spline sleeve 21 converts the torque of the drill bit brake into an axial force, the axial force drives the spiral spline shaft 22 to rotate and move upwards along the axial direction, the spiral spline shaft 22 moves upwards to drive the disc spring guide rod 22 to compress the disc springs 23, the disc springs 23 generate pressure and transmit the pressure to the pressure sensor 14, and the pressure sensor 14 tests the pressure of the group of disc springs 23. The disc spring guide rod 19 drives the test guide rod 4 to move upwards and compress the displacement sensor 11, and the displacement sensor 11 tests the compression amount of the group of disc springs 23. The analog quantity acquisition module 12 acquires and stores test data of the displacement sensor 11 and the pressure sensor 14. And after the anti-braking tool is taken out after the underground work is finished, reading the tested data from the port of the aviation plug-in by using the data line and analyzing the data.
In this embodiment, the lower end surfaces of the sealing sleeve 18 and the balance sleeve 15 are respectively provided with an inclined surface, so as to reduce the oil pressure in the sealing cavity of the belleville spring and improve the accuracy of the pressure sensor for collecting the pressure of the belleville spring.
The balance sleeve 15 has the effects of sealing the cavity of the belleville spring 23, reducing the volume and increasing the pressure, the movable balance sleeve 15 can reduce the pressure generated by sealing oil, the accuracy of data acquisition of the pressure sensor is improved, the working condition of the sealing ring 16 under a high-pressure ring is improved, and the service life of the sealing ring is prolonged.
Claims (5)
1. The utility model provides a prevent downhole testing device of braking instrument which characterized in that: the device comprises a shell and a mandrel arranged in the shell, wherein the upper end of the mandrel is in sealed configuration with an inner hole of the shell, an annular cavity is arranged between the mandrel and the shell, a battery pack, a displacement sensor and an analog quantity acquisition module are sequentially arranged in the annular cavity, a pressure transmission sleeve is arranged below the analog quantity acquisition module, the upper end of the pressure transmission sleeve is axially limited through the shell, a pressure sensor and a sealing sleeve are sleeved on the mandrel positioned at the lower end of the pressure transmission sleeve, a balance sleeve is sleeved outside the sealing sleeve, the inner wall of the balance sleeve is in sealed configuration with the sealing sleeve, the upper end of the balance sleeve corresponds to the pressure transmission sleeve, the sealing sleeve and the pressure sensor are axially limited by the end part of the mandrel, the pressure sensor and the displacement sensor are respectively connected with the analog quantity acquisition module, the shell comprises an upper joint and a wire protection sleeve, and the upper end of the pressure transmission, the core shaft comprises a test guide rod and a wire protecting shaft, the upper end of the wire protecting shaft is in threaded connection with the test guide rod, the pressure transmission sleeve, the pressure sensor and the sealing sleeve are respectively sleeved on the wire protecting shaft, the wire protecting shaft and the wire protecting sleeve are respectively screwed off in the using process, the testing device is connected with an anti-braking tool, the anti-braking tool comprises a butterfly guide rod, a butterfly spring is sleeved outside the butterfly guide rod, a spiral spline sleeve is arranged at the lower end of the butterfly guide rod, the outer part of the spiral spline sleeve is connected with a shell, a spiral spline shaft is sleeved inside the spiral spline sleeve, spiral teeth arranged on the outer wall of the lower end of the spiral spline shaft are meshed with spiral teeth arranged on the inner wall of the spiral spline sleeve, the pressure transmission sleeve, the pressure sensor, the sealing sleeve and a balance sleeve are arranged on the butterfly guide rod when the testing device is used, the end part of the sealing sleeve is abutted against the, the shell is connected with an upper joint of the testing device.
2. The downhole testing device of the anti-braking tool of claim 1, wherein: the pressure transmission sleeve is provided with a pressure transmission hole which is an axial through hole.
3. The downhole testing device of the anti-braking tool of claim 1, wherein: the lower end faces of the sealing sleeve and the balance sleeve are respectively provided with an inclined plane.
4. The downhole testing device of the anti-braking tool of claim 1, wherein: an aviation socket is arranged on the shell corresponding to the analog quantity acquisition module, an aviation plug-in is arranged on the aviation socket, and the aviation plug-in is sealed through a communication port end cover.
5. The downhole testing device of the anti-braking tool of claim 1, wherein: the end part of the butterfly-shaped guide rod is provided with a reducing end with the inner diameter increased, the reducing end part forms a step surface, and the lower end of the butterfly-shaped spring is abutted to the step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093943.7A CN106837311B (en) | 2017-02-21 | 2017-02-21 | Downhole testing device for preventing braking tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093943.7A CN106837311B (en) | 2017-02-21 | 2017-02-21 | Downhole testing device for preventing braking tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837311A CN106837311A (en) | 2017-06-13 |
| CN106837311B true CN106837311B (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710093943.7A Active CN106837311B (en) | 2017-02-21 | 2017-02-21 | Downhole testing device for preventing braking tool |
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| Country | Link |
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| CN (1) | CN106837311B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644969B (en) * | 2018-06-08 | 2022-09-23 | 中国石油化工股份有限公司 | Device for testing pressure and/or torque and displacement relation of auxiliary drilling tool |
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| CN102505923A (en) * | 2011-11-15 | 2012-06-20 | 燕山大学 | Shock absorber of drill string |
| CN103410500A (en) * | 2013-07-26 | 2013-11-27 | 西南石油大学 | MWD (monitoring while drilling) device and method for vibration of down-hole drill string |
| CN103899292A (en) * | 2012-12-26 | 2014-07-02 | 中国石油化工股份有限公司 | Method used for measuring impact vibration state of downhole instrument while drilling |
| CN204941339U (en) * | 2015-07-31 | 2016-01-06 | 江汉石油钻头股份有限公司 | A kind of anti-brake tool |
| CN105545223A (en) * | 2016-01-29 | 2016-05-04 | 贵州高峰石油机械股份有限公司 | Drill bit damping method and disc spring bidirectional damper |
| CN106050160A (en) * | 2016-06-02 | 2016-10-26 | 西南石油大学 | Stagnation-prevention drilling tool capable of reducing stick slip phenomenon through multi-head helical pair |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003234360A1 (en) * | 2003-04-14 | 2004-11-01 | Per Olav Haughom | Dynamic damper for use in a drill string |
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2017
- 2017-02-21 CN CN201710093943.7A patent/CN106837311B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890451A (en) * | 2003-11-07 | 2007-01-03 | Aps技术公司 | System and method for damping vibration in a drill string |
| CN2700558Y (en) * | 2004-01-05 | 2005-05-18 | 辽河石油勘探局 | Down-hole mechanical parameter measuring instrument for directional drilling |
| CN102140893A (en) * | 2011-04-11 | 2011-08-03 | 西南石油大学 | Magnetorheological intelligent drilling vibration damper |
| CN102505923A (en) * | 2011-11-15 | 2012-06-20 | 燕山大学 | Shock absorber of drill string |
| CN103899292A (en) * | 2012-12-26 | 2014-07-02 | 中国石油化工股份有限公司 | Method used for measuring impact vibration state of downhole instrument while drilling |
| CN103410500A (en) * | 2013-07-26 | 2013-11-27 | 西南石油大学 | MWD (monitoring while drilling) device and method for vibration of down-hole drill string |
| CN204941339U (en) * | 2015-07-31 | 2016-01-06 | 江汉石油钻头股份有限公司 | A kind of anti-brake tool |
| CN105545223A (en) * | 2016-01-29 | 2016-05-04 | 贵州高峰石油机械股份有限公司 | Drill bit damping method and disc spring bidirectional damper |
| CN106050160A (en) * | 2016-06-02 | 2016-10-26 | 西南石油大学 | Stagnation-prevention drilling tool capable of reducing stick slip phenomenon through multi-head helical pair |
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| CN106837311A (en) | 2017-06-13 |
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Effective date of registration: 20180309 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Applicant after: Kingdream Sinopec Petroleum Machinery Co. Ltd. Applicant after: SINOPEC OILFIELD EQUIPMENT CORPORATION Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Applicant before: Sinopec petroleum machinery Limited by Share Ltd Kingdream branch |
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