Vibration well cementation tool

Abstract

The invention relates to the technical field of vibration well cementation, in particular to a vibration well cementation tool which comprises a mounting shell, a support head, a first rubber belt, a second rubber belt, a driving mechanism, an upper eccentric wheel and a lower eccentric wheel. The structure is reasonable and compact, the driving mechanism can drive the upper eccentric wheel and the lower eccentric wheel to rotate when working, the upper eccentric wheel and the lower eccentric wheel are the same in structure, and the lower eccentric wheel and the upper eccentric wheel are the same in eccentric distance and eccentric direction, so that the driving mechanism and the mounting shell can vibrate when the upper eccentric wheel and the lower eccentric wheel rotate; therefore, the device can vibrate and excite a casing string to form a damping resonance response in the process of replacing drilling fluid by cement paste and the process of waiting for setting, the viscosity of the drilling fluid and the cement paste can be reduced through vibration, a drilling fluid film on the outer wall of a casing and virtual mud cakes on the well wall can be cleared away, the replacement efficiency is improved, and the interface and set cement bonding strength is improved. Therefore, the purpose of improving the well cementation quality is achieved.

Description

Technical Field

[0001] This invention relates to the field of vibration cementing technology, and is a vibration cementing tool. Background Technology

[0002] Research on vibration cementing technology in drilling engineering began earlier abroad. The Ufa Petroleum Research Institute in the Soviet Union experimentally confirmed that, regardless of vibration intensity, vibration frequencies between 20 Hz and 175 Hz could increase cement strength by 15% to 20%, and this technology was successfully applied in nearly 100 wells across five oilfields. Dale Dusterhoft and CTES in the United States installed pressure measuring instruments outside the casing, confirming that applying appropriate low-frequency hydraulic pulses at the wellhead after cementing could maintain a low-speed movement of the cement slurry inside the well. Trican Oil Well Services in Canada developed vehicle-mounted vibration equipment. Domestic research and development on vibration cementing technology has been relatively rapid. Starting in 1992 with the research on hydraulic pulse casing shoes by the Daqing Drilling Research Institute and Technical Service Company, and continuing into 1998 with the hydraulic pulse generator from Liaohe Oilfield Drilling Company, field tests were conducted on hundreds of oil wells, achieving a 99% pass rate and a 94% high-quality rate. Analysis of the current state of research both domestically and internationally reveals that the effectiveness and applicability of vibration cementing technology are improving, with various new technologies and processes emerging in an endless stream, such as wellhead vibration equipment, bottom hole pulse devices, and in-well magnetoelectric vibrators. However, in order to solve the vibration response problem of drilling fluid and cementing fluid during the cementing process, it is necessary to use energy sources that can achieve long-distance vibration wave propagation, or to install instruments and devices during processes such as casing running and cementing. The disadvantages of the applied vibration equipment, such as large number of devices, high energy consumption, complex structure, high cost, poor operability and implementation, have become stumbling blocks to technological progress and development. Summary of the Invention

[0003] This invention provides a vibratory cementing tool that overcomes the shortcomings of the prior art. It can effectively solve the problems of existing vibratory cementing devices, such as multiple vibration devices, high energy consumption, complex structure, high cost, and inconvenience in operation and use.

[0004] The technical solution of the present invention is achieved through the following measures: A vibratory cementing tool includes a mounting housing, a support head, a first rubber skirt, a second rubber skirt, a drive mechanism, an upper eccentric wheel, and a lower eccentric wheel. At least one first rubber skirt is installed vertically at intervals on the outer side of the mounting housing. The outer side of each first rubber skirt is a conical surface with a larger upper diameter and a smaller lower diameter. A support head is fixedly installed at the lower end of the mounting housing. The outer diameter of the upper part of the support head is larger than the outer diameter of the lower part. At least one second rubber skirt is installed vertically at intervals on the outer side of the upper part of the support head. The outer side of each second rubber skirt is a conical surface with a larger upper diameter and a smaller lower diameter. The outer diameter of the upper end of the second rubber skirt is smaller than the outer diameter of the upper end of the first rubber skirt. An end cap is fixedly installed at the upper end of the mounting housing. A drive mechanism is fixedly installed on the inner side of the lower part of the mounting housing at the position corresponding to the end cap and the support head. An upper eccentric wheel is fixedly installed at the upper end of the output shaft of the drive mechanism. A lower eccentric wheel with the same structure as the upper eccentric wheel is fixedly installed at the lower end of the output shaft of the drive mechanism. The eccentricity and eccentric direction of the lower eccentric wheel and the upper eccentric wheel are the same.

[0005] The following are further optimizations and / or improvements to the above-mentioned technical solution: The aforementioned mounting housing may include an upper connecting sleeve and a lower connecting sleeve. The inner side of the upper end of the upper connecting sleeve is fixedly installed together with the outer side of the lower end of the end cover. The lower end of the upper connecting sleeve is fixedly installed together with the upper end of the lower connecting sleeve. The lower end of the lower connecting sleeve is fixedly installed together with the upper end of the bracket head. A lower inner ring platform is fixedly installed on the inner side of the lower connecting sleeve. The drive mechanism is fixedly installed on the inner side of the lower inner ring platform. The lower end of the lower mounting sleeve is fixedly installed together with the upper end of the bracket head.

[0006] The aforementioned drive mechanism may include a dual-axis motor, an upper mounting flange, and a lower mounting flange. The dual-axis motor is installed inside the lower inner ring platform. The upper outer side of the output shaft of the dual-axis motor is fitted with an upper mounting flange that is fixedly installed together with the upper end of the lower inner ring platform. The lower outer side of the output shaft of the dual-axis motor is fitted with a lower mounting flange that is fixedly installed together with the lower end of the lower inner ring platform.

[0007] The aforementioned drive mechanism may also include a power supply module and a control module. An upper inner ring platform is fixed on the inner side of the lower part of the upper connecting sleeve corresponding to the position above the upper eccentric wheel. The power supply module is installed on the upper upper part of the upper inner ring platform. A control module is provided on the inner side of the upper connecting sleeve corresponding to the position above the power supply module. The control module is connected to the power supply module and the dual-axis motor respectively.

[0008] The upper center of the aforementioned end cap may be provided with a through mounting screw hole, and a set screw with its lower end in contact with the upper end of the control module is screwed into the mounting screw hole.

[0009] Both the outer side of the upper connecting sleeve and the outer side of the lower connecting sleeve can be provided with at least one first outer ring groove at intervals, and the lower end of each first rubber skirt is fixed with a first connecting ring that is locked in the first outer ring groove.

[0010] The aforementioned support head may include a cylindrical section, a conical section, and a cylindrical section fixed together from top to bottom. The cylindrical section is open at the top and closed at the bottom. The conical section is a cone shape that is larger at the top and smaller at the bottom. The outer side of the lower end of the cylindrical section is chamfered. The inner side of the upper end of the cylindrical section is fixedly installed together with the outer side of the lower end of the lower connecting sleeve. At least one second outer ring groove is provided at intervals on the outer side of the cylindrical section. The lower end of each second rubber skirt is fixed with a second connecting ring that is locked in the second outer ring groove. A third outer ring groove is provided on the outer side of the lower part of the cylindrical section. An elastic retaining ring is installed in the third outer ring groove. The outer side of the elastic retaining ring is a conical surface that is larger at the top and smaller at the bottom. A sealing ring groove is provided on the outer side of the upper part of the cylindrical section corresponding to the position above the third outer ring groove.

[0011] This invention features a reasonable and compact structure. By incorporating a drive mechanism, an upper eccentric wheel, and a lower eccentric wheel, the drive mechanism rotates both wheels. The upper and lower eccentric wheels have identical structures, and their eccentricity and direction are the same. This rotation causes vibration in the drive mechanism and the mounting housing, enabling the invention to vibrate during the cement slurry replacement of drilling fluid and during the setting process. This vibration stimulates a damped resonance response in the casing string, acting on the drilling fluid and cement slurry, achieving vibration throughout the replacement and setting processes. The vibration reduces the viscosity of the drilling fluid and cement slurry, facilitating the removal of the drilling fluid film on the outer wall of the casing. The loose mud cake on the well wall improves displacement efficiency. Vibration can also intensify the relative movement between water and solid particles in the cementing fluid, making cement hydration more complete, shortening the cement thickening transition time, and shortening the cement slurry setting time. At the same time, it reduces or eliminates the static shear force of the cement slurry, so that the static pressure loss of the cement column during the cement slurry setting process can be compensated. A higher radial stress is formed at the first and second interfaces. During cementing and waiting for setting, the present invention can effectively prevent formation fluid intrusion, improve the interface and cement stone bonding strength, thereby achieving the purpose of improving cementing quality. It has the advantages of good integration with existing cementing processes, low energy consumption, no change to existing cementing equipment, and convenient field operation. Attached Figure Description

[0012] Appendix Figure 1 These are schematic diagrams of the main cross-sectional structure of embodiments one to seven of the present invention.

[0013] Appendix Figure 2 For the appendix Figure 1 A top-down enlarged structural diagram of the lower eccentric wheel.

[0014] The codes in the attached diagram are as follows: 1 for the first rubber skirt, 2 for the second rubber skirt, 3 for the end cap, 4 for the upper eccentric wheel, 5 for the lower eccentric wheel, 6 for the dual-shaft motor, 7 for the output shaft, 8 for the upper mounting flange, 9 for the lower mounting flange, 10 for the upper connecting sleeve, 11 for the lower connecting sleeve, 12 for the lower inner ring platform, 13 for the power supply module, 14 for the control module, 15 for the upper inner ring platform, 16 for the set screw, 17 for the first connecting ring, 18 for the cylindrical section, 19 for the conical section, 20 for the cylindrical section, 21 for the second connecting ring, 22 for the elastic retaining ring, and 23 for the sealing ring groove. Detailed Implementation

[0015] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0016] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0017] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2 As shown, the vibratory cementing tool includes a mounting housing, a support head, a first rubber skirt 1, a second rubber skirt 2, a drive mechanism, an upper eccentric wheel 4, and a lower eccentric wheel 5. At least one first rubber skirt 1 is installed at intervals on the outer side of the mounting housing. The outer side of each first rubber skirt 1 is a conical surface that is larger at the top and smaller at the bottom. The support head is fixedly installed at the lower end of the mounting housing. The outer diameter of the upper part of the support head is larger than the outer diameter of the lower part. At least one second rubber skirt 2 is installed at intervals on the outer side of the upper part of the support head. The outer side of each second rubber skirt 2 is a conical surface that is larger at the top and smaller at the bottom. The outer diameter of the upper end of the second rubber skirt 2 is smaller than the outer diameter of the upper end of the first rubber skirt 1. An end cap 3 is fixedly installed at the upper end of the mounting housing. The drive mechanism is fixedly installed on the inner side of the lower part of the mounting housing at the position between the end cap 3 and the support head. The upper eccentric wheel 4 is fixedly installed at the upper end of the output shaft 7 of the drive mechanism. The lower eccentric wheel 5, which has the same structure as the upper eccentric wheel 4, is fixedly installed at the lower end of the output shaft 7 of the drive mechanism. The eccentricity and eccentric direction of the lower eccentric wheel 5 and the upper eccentric wheel 4 are the same.

[0018] During use, by setting up a drive mechanism, an upper eccentric wheel 4, and a lower eccentric wheel 5, the drive mechanism can drive the upper eccentric wheel 4 and the lower eccentric wheel 5 to rotate. The upper eccentric wheel 4 and the lower eccentric wheel 5 have the same structure, and the eccentricity and eccentric direction of the lower eccentric wheel 5 and the upper eccentric wheel 4 are the same. In this way, when the upper eccentric wheel 4 and the lower eccentric wheel 5 rotate, the drive mechanism and the mounting housing will vibrate. This allows the invention to vibrate during the process of cement slurry replacing drilling fluid and during the setting process, stimulating the casing string to form a damped resonance response, which acts on the drilling fluid and cement slurry, realizing vibration throughout the entire process of slurry replacement and setting. Vibration can reduce drilling... The viscosity of the cement fluid and cement slurry helps to remove the drilling fluid film on the outer wall of the casing and the loose mud cake on the well wall, improving the displacement efficiency. Vibration can also intensify the relative movement between water and solid particles in the cementing fluid, making the cement hydration more complete, shortening the cement thickening transition time, shortening the cement slurry setting time, and reducing or eliminating the static shear force of the cement slurry, so that the static pressure loss of the cement column during the setting process can be compensated, forming a higher radial stress at the first and second interfaces. Using this invention during cementing and waiting for setting can effectively prevent formation fluid from entering, improve the interface and cement stone bonding strength, thereby achieving the purpose of improving cementing quality.

[0019] The first rubber strip 1 and the second rubber strip 2 in this invention can be the conical sections of existing rubber plugs, which have the advantages of good integration with existing cementing processes, low energy consumption, no change to existing cementing equipment, and ease of on-site operation.

[0020] The above-mentioned vibratory cementing tools can be further optimized and / or improved according to actual needs: Example 2: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the mounting housing includes an upper connecting sleeve 10 and a lower connecting sleeve 11. The inner side of the upper end of the upper connecting sleeve 10 is fixedly installed together with the outer side of the lower end of the end cover 3. The lower end of the upper connecting sleeve 10 is fixedly installed together with the upper end of the lower connecting sleeve 11. The lower end of the lower connecting sleeve 11 is fixedly installed together with the upper end of the bracket head. A lower inner ring platform 12 is fixedly installed on the inner side of the lower connecting sleeve 11. The drive mechanism is fixedly installed on the inner side of the lower inner ring platform 12. The lower end of the lower mounting sleeve is fixedly installed together with the upper end of the bracket head.

[0021] Depending on the requirements, the end cap 3, upper connecting sleeve 10, and lower connecting sleeve 11 can all be made of aluminum alloy (ZL104), ductile iron (QT500), or 35CrMo alloy. Aluminum alloy (ZL104) and ductile iron (QT500) are drillable, while 35CrMo alloy is non-drillable. Therefore, ductile iron (QT500) or 35CrMo alloy can be used according to technical requirements to reduce costs. During use, by setting the lower inner ring platform 12, the drive mechanism and lower connecting sleeve 11 can be connected as a whole. When the drive mechanism drives the output shaft 7, upper eccentric wheel 4, and lower eccentric wheel 5 to rotate, it can cause the lower connecting sleeve 11 to vibrate inside the casing, thereby causing the vibrating cementing tool to vibrate inside the casing.

[0022] Example 3: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the drive mechanism includes a dual-axis motor 6, an upper mounting flange 8, and a lower mounting flange 9. The dual-axis motor 6 is installed inside the lower inner ring platform 12. The upper outer side of the output shaft 7 of the dual-axis motor 6 is fitted with the upper mounting flange 8, which is fixedly installed together with the upper end of the lower inner ring platform 12. The lower outer side of the output shaft 7 of the dual-axis motor 6 is fitted with the lower mounting flange 9, which is fixedly installed together with the lower end of the lower inner ring platform 12.

[0023] As required, the upper mounting flange 8, the lower mounting flange 9, and the dual-axis motor 6 are integrated into one unit. The dual-axis motor 6 is a known technology, such as a DC motor. The output shaft 7 of the dual-axis motor 6 is located on both sides of the motor. During use, this arrangement facilitates the installation of the dual-axis motor 6 and also increases the vibration amplitude of the upper connecting sleeve 10 and the lower connecting sleeve 11.

[0024] Example 4: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the drive mechanism also includes a power supply module 13 and a control module 14. An upper inner ring platform 15 is fixed on the lower inner side of the upper connecting sleeve 10 corresponding to the position above the upper eccentric wheel 4. The power supply module 13 is installed on the upper end of the upper inner ring platform 15. The control module 14 is provided on the inner side of the upper connecting sleeve 10 corresponding to the position above the power supply module 13. The control module 14 is connected to the power supply module 13 and the dual-axis motor 6 respectively.

[0025] According to requirements, both the control module 14 and the power supply module 13 are existing known technologies. During use, this setup facilitates the control of the dual-axis motor 6. The operating mode of the dual-axis motor 6 can be remotely controlled via a remote control wirelessly connected to the control module 14, thereby controlling the vibration time and mode of the upper connecting sleeve 10 and the lower connecting sleeve 11. This allows for casing series damping resonance. In use, the invention is lowered into the well. The upper liquid pushes the first rubber skirt 1 to move from top to bottom within the casing. When the dual-axis motor 6 operates, the upper eccentric wheel 4 and the lower eccentric wheel 5 drive the invention to vibrate within the casing, enabling the invention to resonate throughout the entire well section and continue vibrating after impact.

[0026] Example 5: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the upper center of the end cap 3 is provided with a through mounting screw hole, and a set screw 16 with its lower end in contact with the upper end of the control module 14 is screwed into the mounting screw hole.

[0027] As required, sealing rings are provided on the outer side of the end cap 3 and the inner side of the upper connecting sleeve 10 to improve the sealing performance at the connection between the upper connecting sleeve 10 and the end cap 3. During use, this setting can fix the power supply module 13 and the control module 14, preventing poor contact between the power supply module 13, the control module 14 and the dual-axis motor 6 during operation, thus ensuring the normal operation of the dual-axis motor 6.

[0028] Example 6: As an optimization of the above examples, as shown in the appendix Figure 1 As shown, at least one first outer ring groove is provided at intervals on the outer side of the upper connecting sleeve 10 and the outer side of the lower connecting sleeve 11. Each first rubber skirt 1 has a first connecting ring 17 fixed at its lower end and inserted into the first outer ring groove.

[0029] As required, the first connecting ring 17 and the first rubber skirt 1 are integrally installed. During use, by setting the first connecting ring 17 and the first outer ring groove, the first rubber skirt 1, the upper connecting sleeve 10, and the lower connecting sleeve 11 can be firmly fixed together. When the dual-shaft motor 6 is working, it drives the upper eccentric wheel 4 and the lower eccentric wheel 5 to rotate, thereby causing the upper connecting sleeve 10 and the lower connecting sleeve 11 to vibrate, which in turn causes the first rubber skirt 1 to vibrate. During cementing and waiting for the cement to set, this can effectively prevent formation fluid from entering, improve the interface and cement stone bonding strength, and thus achieve the purpose of improving cementing quality.

[0030] Example 7: As an optimization of the above examples, as shown in the appendix. Figure 1As shown, the support head includes a cylindrical section 18, a conical section 19, and a cylindrical section 20, which are fixed together from top to bottom. The cylindrical section 18 is open at the top and closed at the bottom. The conical section 19 is a cone shape that is larger at the top and smaller at the bottom. The lower outer side of the cylindrical end is chamfered. The inner side of the upper end of the cylindrical section 18 is fixedly installed with the outer side of the lower connecting sleeve 11. At least one second outer ring groove is provided at intervals on the outer side of the cylindrical section 18. The lower end of each second rubber skirt 2 is fixed with a second connecting ring 21 that is locked in the second outer ring groove. The lower outer side of the cylindrical section 20 is provided with a third outer ring groove. An elastic retaining ring 22 is installed in the third outer ring groove. The outer side of the elastic retaining ring 22 is a conical surface that is larger at the top and smaller at the bottom. A sealing ring groove 23 is provided on the upper outer side of the cylindrical section 20 corresponding to the position above the third outer ring groove.

[0031] According to requirements, the second connecting ring 21 and the second rubber skirt 2 are integrally set. During use, by setting the first connecting ring 17 and the first outer ring groove, the first rubber skirt 1, the upper connecting sleeve 10, and the lower connecting sleeve 11 can be firmly fixed together. The outer diameter of the upper end of the elastic retaining ring 22 is larger than the diameter of the cylindrical section 20. By setting the elastic retaining ring 22, the position of the present invention can be locked, and a sealing ring can be installed in the sealing ring groove 23. This allows for sealing installation with other pipe strings, improving the sealing performance of the connection.

[0032] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A vibratory cementing tool characterized by The utility model provides a kind of supporting head, including installation shell, first rubber skirt, second rubber skirt, drive mechanism, upper eccentric wheel and lower eccentric wheel, at least one first rubber skirt is installed in installation shell outside upper and lower interval, the outer side of each first rubber skirt is the taper surface of big up small down, bracket head is fixedly installed in installation shell lower end, the outer side diameter of bracket head upper portion is greater than lower portion, at least one second rubber skirt is installed in bracket head upper portion outer side upper and lower interval, the outer side of each second rubber skirt is the taper surface of big up small down, the diameter of second rubber skirt upper end outer side is less than the diameter of first rubber skirt upper end outer side, end cover is fixedly installed in installation shell upper end, drive mechanism is fixedly installed in installation shell lower portion inner side between the position corresponding end cover and bracket head, the output shaft upper end of drive mechanism is fixedly installed with upper eccentric wheel, the output shaft lower end of drive mechanism is fixedly installed with lower eccentric wheel same with the structure of upper eccentric wheel, the eccentric distance and eccentric direction of lower eccentric wheel and upper eccentric wheel are same.

2. The vibratory cementing tool of claim 1, wherein The installation shell includes an upper connecting sleeve and a lower connecting sleeve, the upper end inner side of the upper connecting sleeve is fixedly installed with the lower end outer side of the end cover, the lower end of the upper connecting sleeve is fixedly installed with the upper end of the lower connecting sleeve, and the lower end of the lower connecting sleeve is fixedly installed with the upper end of the bracket head. The inner side of the lower connecting sleeve is fixedly provided with a lower inner ring table, and the drive mechanism is fixedly installed inside the lower inner ring table. The lower end of the lower mounting sleeve is fixedly installed with the upper end of the bracket head.

3. The vibratory cementing tool of claim 2, wherein The drive mechanism includes a double-shaft motor, an upper mounting flange and a lower mounting flange. The double-shaft motor is installed inside the lower inner ring table. The outer side of the upper portion of the output shaft of the double-shaft motor is sleeved with the upper mounting flange which is fixedly installed with the upper end of the lower inner ring table. The outer side of the lower portion of the output shaft of the double-shaft motor is sleeved with the lower mounting flange which is fixedly installed with the lower end of the lower inner ring table.

4. The vibratory cementing tool of claim 3, wherein The drive mechanism further includes a power supply module and a control module. The inner side of the lower portion of the upper connecting sleeve corresponding to the position above the upper eccentric wheel is fixedly provided with an upper inner ring table. The power supply module is installed at the upper end of the upper inner ring table. The inner side of the upper connecting sleeve corresponding to the position of the upper end of the power supply module is provided with the control module. The control module is connected with the power supply module and the double-shaft motor respectively.

5. The vibratory cementing tool of claim 4, wherein The upper end of the end cover is provided with an installation screw hole which penetrates up and down. A jam nut which is in contact with the upper end of the control module is screwed in the installation screw hole.

6. The vibratory cementing tool of claims 2 or 3 or 4 or 5, wherein The outer side of the upper connecting sleeve and the outer side of the lower connecting sleeve are both provided with at least one first outer ring groove at intervals from top to bottom. The lower end of each first rubber skirt is fixedly provided with a first connecting ring which is clamped in the first outer ring groove.

7. The vibratory cementing tool of claims 2, 3, 4, or 5, wherein The bracket head includes a cylindrical segment, a tapered column segment and a cylindrical segment which are fixedly installed together from top to bottom. The cylindrical segment is open at the upper end and closed at the lower end. The tapered column segment is tapered with the upper end being larger than the lower end. The lower end outer side of the cylindrical segment is provided with a chamfer. The upper end inner side of the cylindrical segment is fixedly installed with the lower end outer side of the lower connecting sleeve. The outer side of the cylindrical segment is provided with at least one second outer ring groove at intervals from top to bottom. The lower end of each second rubber skirt is fixedly provided with a second connecting ring which is clamped in the second outer ring groove. The lower portion outer side of the cylindrical segment is provided with a third outer ring groove. An elastic clasp is installed in the third outer ring groove. The outer side of the elastic clasp is tapered with the upper end being larger than the lower end. The upper portion outer side of the cylindrical segment corresponding to the position above the third outer ring groove is provided with a sealing ring groove.

8. The vibratory cementing tool of claim 6, wherein The support head comprises a cylinder segment, a conical column segment and a cylinder segment fixed together from top to bottom, the cylinder segment is open at the upper end and closed at the lower end, the conical column segment is tapered from large at the upper end to small at the lower end, the lower end of the cylinder end is provided with a chamfer, the inner side of the upper end of the cylinder segment is fixed and installed together with the outer side of the lower end of the lower connecting sleeve, at least one second outer ring groove is provided on the outer side of the cylinder segment and spaced apart from top to bottom, the lower end of each second rubber skirt is fixed with a second connecting ring clamped in the second outer ring groove, the outer side of the elastic clasp installed in the third outer ring groove is tapered from large at the upper end to small at the lower end, and the upper outer side of the cylinder segment corresponding to the position above the third outer ring groove is provided with a sealing ring groove.

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