CN210058792U - Glue injection device for drill collar outer wall ring groove - Google Patents
Glue injection device for drill collar outer wall ring groove Download PDFInfo
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- CN210058792U CN210058792U CN201920195508.XU CN201920195508U CN210058792U CN 210058792 U CN210058792 U CN 210058792U CN 201920195508 U CN201920195508 U CN 201920195508U CN 210058792 U CN210058792 U CN 210058792U
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Abstract
The utility model provides a glue injection device of a drill collar outer wall ring groove, which comprises a glue injection sleeve, wherein the glue injection sleeve is sleeved on the periphery of the drill collar outer wall ring groove and forms an annular closed cavity with the outer wall ring groove, and a glue injection port and an air exhaust port which are communicated with the closed cavity are arranged on the glue injection sleeve; the vacuum generator is communicated with the air pumping port of the closed cavity; and the vacuum glue injection pipeline is communicated with the glue injection port of the closed cavity. The utility model has the advantages that: in the whole glue injection process, no gas is left in the colloid, the closed cavity and the vacuum glue injection pipeline, the whole environment is in a vacuum state, hydrogen embrittlement caused by bubbles generated after the colloid is solidified is avoided, the colloid is ensured to be stably and firmly bonded with the annular groove in the outer wall of the drill collar, and the stability and the reliability of the use of the antenna are improved. Meanwhile, the device is simple in structure, convenient to operate, convenient to manufacture and controllable in cost.
Description
Technical Field
The utility model belongs to the technical field of drilling equipment, in particular to injecting glue device of drill collar outer wall annular.
Background
As drilling technology matures and requirements for downhole parameters continue to increase, especially with increasing demands for near-bit measurement technology, the market for data transmission via a screw becomes more and more severe. Meanwhile, along with the development of the electromagnetic wave technology, the underground short-distance short joint is more and more mature in data transmission across the screw. The drilling tool is provided with an antenna for transmitting and receiving electromagnetic waves so as to realize the transmission of underground implementation data and achieve the timely tracking of the full-time state of underground operation.
With reference to the wellhead, the drilling tool can be roughly divided into two parts: an upper drilling assembly located above the wellhead and a lower drilling assembly located below the wellhead. Wherein, the drill collar is positioned at the lowest part of the drill string and is the main component of the lower drilling tool assembly. Usually, the outer wall of the drill collar is provided with a ring groove, and an antenna for transmitting and receiving electromagnetic waves is arranged in the ring groove, so that the antenna is prevented from touching the well wall and being damaged in the drilling process. Meanwhile, since the electromagnetic wave transmission is greatly affected by the metal shield, the transmitting and receiving antennas cannot be sealed by metal rings, but must be protected by non-metal seals. However, the nonmetal strength and the wear resistance are poor, the antenna cannot be effectively and reliably sealed, and a glue injection method is generally adopted to seal and protect the outer wall groove of the drill collar.
When the prior art seals the annular groove on the outer wall of the drill collar, as the exposed part of the antenna is smaller and the bonding area is larger, the antenna is ensured not to be loosened after the antenna is sealed by the solidified colloid, so that the process requirement is not particularly high. Because the colloid in the annular groove of the outer wall of the drill collar has bubbles in the glue injection process, the bubbles remain in the colloid after the colloid is solidified to cause hydrogen embrittlement of the bubbles, so that the annular groove of the outer wall of the drill collar has the risk of infirm adhesion of the colloid. When the drilling tool is used, the drilling tool is extruded and impacted by underground slurry and small stones for a long time, the colloid in the annular groove on the outer wall of the drill collar can loosen, and even fall off under severe conditions. The antenna is lack of colloid protection, and is damaged after contacting mud, and the transmission and the receipt of signal are influenced.
SUMMERY OF THE UTILITY MODEL
To above technical demand and prior art defect, the utility model discloses on summarizing prior art's basis, develop the injecting glue device of drill collar outer wall annular easy and simple to handle, it is firm to bond.
The utility model discloses specific technical scheme as follows:
the utility model provides a injecting glue device of drill collar outer wall annular, includes:
the glue injection sleeve is sleeved on the periphery of the ring groove of the outer wall of the drill collar and forms an annular closed cavity with the ring groove of the outer wall, and a glue injection port and an air exhaust port which are communicated with the closed cavity are formed in the glue injection sleeve;
the vacuum generator is communicated with the air suction port of the closed cavity;
and the vacuum glue injection pipeline is communicated with the glue injection port of the closed cavity.
Further, the glue injection device also comprises a glue storage tank filled with glue; one end of the vacuum glue injection pipeline is communicated with the glue injection port of the closed cavity, and the other end of the vacuum glue injection pipeline is communicated with the inner cavity of the glue storage tank.
Furthermore, the glue storage tank is also connected with a second vacuum glue injection pipeline, and the free end of the second vacuum glue injection pipeline is connected with a vacuum generator.
Furthermore, a second vacuum valve is arranged on the second vacuum glue injection pipeline.
Further, the glue storage tank is arranged above the closed cavity, and a first vacuum valve is arranged on the vacuum glue injection pipeline.
Furthermore, the air exhaust port of the closed cavity is connected with a third vacuum glue injection pipeline, the free end of the third vacuum glue injection pipeline is connected with the vacuum generator, and a third vacuum valve is further arranged on the third vacuum glue injection pipeline.
Furthermore, the glue injection sleeve comprises a first branch and a second branch which are mutually butted, the first branch and the second branch are symmetrical about a plane where a central shaft of the glue injection sleeve is located, the first branch and the second branch are butted and then clamped on the outer wall of the drill collar, and the glue injection port or the air extraction port is respectively arranged on the first branch or the second branch.
Furthermore, a first sealing ring groove is formed in the circumferential direction of the inner wall, attached to the drill collar, of the first sub portion, and a second sealing ring groove is formed in the circumferential direction of the inner wall of the second sub portion, corresponding to the first sealing ring groove; and the first sealing ring groove and the second sealing ring groove are butted to form a complete sealing ring mounting groove.
Furthermore, a third sealing ring groove is formed in the abutting surface of the first subsection or the second subsection.
Further, the outer diameter of the closed cavity is smaller than that of the drill collar.
The utility model has the advantages as follows:
1. in the whole glue injection process, no gas is left in the colloid, the closed cavity and the vacuum glue injection pipeline, the whole environment is in a vacuum state, hydrogen embrittlement caused by bubbles generated after the colloid is solidified is avoided, the colloid is ensured to be stably and firmly bonded with the annular groove in the outer wall of the drill collar, and the stability and the reliability of the use of the antenna are improved. Meanwhile, the device is simple in structure, convenient to operate, convenient to manufacture and controllable in cost.
2. Through the arrangement of the glue storage tanks with different structures, the storage and the use of the glue become convenient and simple. The user can select the glue storage tank of different specifications size according to the use amount of colloid in the project, not only be nimble convenient for adjustment, make things convenient for engineering personnel to carry the transportation again. Meanwhile, the position of the glue storage tank is not limited, and the device is convenient to install and fix.
3. The vacuum pump can continuously carry out evacuation processing to storing up gluey jar, and when the colloid outside was the vacuum environment, the bubble that persists in the colloid can expand, and bubble buoyancy increases finally breaks away from in the colloid for remaining bubble significantly reduced in the colloid, showing and reducing in the colloid because of persisting the bubble and producing the possibility that hydrogen is fragile, be favorable to the firmness that colloid and drill collar outer wall annular bond.
4. The opening and closing of the second vacuum valve are controlled, so that the pressure value in the glue storage tank is adjusted to be larger than the pressure value in the closed cavity, and a certain pressure difference exists between the glue storage tank and the closed cavity, therefore, the glue can flow into the closed cavity in an accelerated manner under the dual actions of gravity and unbalanced pressure, the ring groove in the outer wall of the drill collar is filled with the glue quickly, and the work efficiency of glue injection of the ring groove in the outer wall of the drill collar is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a glue injection device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another glue injection device provided in the embodiment of the present application;
FIG. 3 is an axial cross-sectional view of the glue-injection sleeve shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3;
fig. 5 is a schematic cross-sectional view taken along line C-C shown in fig. 3.
Wherein: 1. injecting a rubber sleeve; 2. sealing the cavity; 3. a glue injection port; 4. an air extraction opening; 5. a vacuum generator; 6. a vacuum glue injection pipeline; 7. a drill collar; 8. a glue storage tank; 9. a second vacuum glue injection pipeline; 10. a second vacuum valve; 11. a first vacuum valve; 12. a third vacuum glue injection pipeline; 13. a third vacuum valve; 14. a first section; 15. a second subsection; 16. a first seal ring groove; 17. a second seal ring groove; 18. and a third seal ring groove.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1, the glue injection device for the ring groove on the outer wall of the drill collar is used for injecting glue and sealing an antenna in the ring groove on the outer wall of the drill collar so as to protect the antenna. The glue injection device comprises a glue injection sleeve 1, a vacuum generator 5 and a vacuum glue injection pipeline 6. The glue injection sleeve 1 is sleeved on the periphery of the ring groove of the outer wall of the drill collar and is tightly matched with the outer wall of the drill collar, and the glue injection sleeve and the ring groove of the outer wall form an annular closed cavity 2. Meanwhile, the glue injection sleeve 1 is provided with a glue injection port 3 and an air extraction port 4 which are communicated with the closed cavity 2. For guarantee injecting glue and bleed efficiency, be convenient for the cooperation installation and reduce the processing degree of difficulty, reduce manufacturing cost, injecting glue mouth 3 and extraction opening 4 all set up along the radial direction of injecting glue cover 1. The vacuum generator 5 is a vacuum pump, is communicated with the air extraction opening 4 of the sealed cavity 2, and is used for carrying out vacuum-pumping treatment on the sealed cavity 2. The vacuum glue injection pipeline 6, namely the pipeline is in a vacuum state and is communicated with the glue injection port 3 of the closed cavity 2. The colloid enters the closed cavity 2 along the vacuum glue injection pipeline 6, and the glue injection sealing process is completed after the colloid is solidified and shaped. Wherein, the colloid that needs to adopt does not contain the bubble in, prevents that the air from remaining in the glue and causing the bubble hydrogen embrittlement.
In order to facilitate the injection of colloid, the flowing of the colloid and the filling of the sealed cavity 2 after the colloid is solidified, when the device is installed with a drill collar 7 in a matching way, the glue injection port 3 is required to be arranged on the top end of the glue injection sleeve 1; the air exhaust port 4 is arranged below and is positioned at the bottommost end of the rubber injection sleeve 1. And vacuumizing the closed cavity 2 by using a vacuum pump, so that the closed cavity 2 is in a vacuum environment. The colloid enters the vacuum closed cavity 2 through the vacuum glue injection pipeline 6 and the glue injection port 3 under the extrusion of an external force, after the closed cavity 2 is filled with the colloid, the colloid is solidified for 12 to 15 hours at the temperature of 20 to 25 ℃, the antenna is sealed and protected, and the colloid injection sleeve 1 can be put into use after being taken down. In the whole glue injection process, no gas is left in the colloid, the closed cavity 2 and the vacuum glue injection pipeline 6, the whole environment is in a vacuum state, hydrogen embrittlement caused by bubbles generated after the colloid is solidified is avoided, the stability and firmness of bonding between the colloid and the annular groove in the outer wall of the drill collar are ensured, and the stability and reliability of the use of the antenna are improved. Meanwhile, the device is simple in structure, convenient to operate, convenient to manufacture and controllable in cost.
Specifically, as shown in fig. 2, the glue injection device further includes a glue storage tank 8 filled with glue for facilitating storage and real-time use of the glue. One end of the vacuum glue injection pipeline 6 is communicated with the glue injection port 3 of the closed cavity 2, and the other end is communicated with the inner cavity of the glue storage tank 8. Or the glue storage tank 8 is of a rigid structure, the glue in the glue storage tank 8 is filled in the inner cavity of the whole tank body after being vacuumized, the tank cover is connected with the tank body in a sliding manner, and the tank cover can be externally connected with a power device, such as a piston or a hydraulic cylinder. The cover is enabled to slide inwards relative to the tank body through external force acting on the cover, then colloid in the tank is pushed to move towards the outlet, and the colloid is pressed into the closed cavity 2 through the vacuum glue injection pipeline 6. Or the glue storage tank 8 is of a flexible structure, and the glue in the glue storage tank 8 is also filled in the inner cavity of the whole tank body after being vacuumized. The tank body is extruded to deform by applying external force to the tank body, and then the colloid is pressed into the closed cavity 2 through the vacuum glue injection pipeline 6. Through the arrangement of the glue storage tanks 8 with different structures, the storage and the use of the glue body become convenient and simple. The user can select the glue storage tank 8 of different specifications size according to the use amount of colloid in the project, not only is nimble convenient for adjust, makes things convenient for engineering personnel to carry the transportation again. Meanwhile, the position of the glue storage tank 8 is not limited, and the device is convenient to install and fix.
In order to ensure that no bubbles are left in the colloid storage tank 8 and avoid the risk of hydrogen embrittlement generated after the colloid is solidified because the gas left in the colloid enters the annular groove on the outer wall of the drill collar, the colloid storage tank 8 is also connected with a second vacuum glue injection pipeline 9, and meanwhile, the free end of the second vacuum glue injection pipeline 9 is connected with the vacuum generator 5. Under this structure, the colloid can be needn't be full of the inner chamber of storage glue jar 8, can be according to the nimble allotment of the demand of actual colloid. The vacuum pump can continuously carry out evacuation processing to glue storage tank 8, and when the colloid outside was the vacuum environment, the bubble that persists in the colloid can expand, and bubble buoyancy increases and finally breaks away from in the colloid for remaining bubble significantly reduced in the colloid, showing and reducing in the colloid because of persisting the bubble and producing the possibility that hydrogen is fragile, be favorable to the firmness that colloid and drill collar outer wall annular bond.
In addition to the above, the glue storage tank 8 is provided above the closed cavity 2. Therefore, the colloid can be injected into the annular groove on the outer wall of the drill collar by means of self gravity, and the colloid storage tank 8 can be made into a box structure without being externally connected with a driving device, so that the structure of the colloid storage tank is optimized, and the colloid storage tank is more convenient for a user to operate. Correspondingly, the vacuum glue injection pipeline 6 is provided with a first vacuum valve 11, so that the rhythm of injecting glue into the annular groove in the glue storage tank 8 is controllable. When the vacuum pump continuously and synchronously vacuumizes the glue storage tank 8 and the closed cavity 2, the pressure in the glue storage tank 8 and the pressure in the closed cavity 2 are maintained in a balanced state, and the glue flows into the closed cavity 2 at a constant speed by means of the gravity of the glue and is maintained at a relatively low flow rate. At this time, in order to increase the flow rate of the glue, a second vacuum valve 10 may be disposed on the second vacuum glue injection pipeline 9. The opening and closing of the second vacuum valve 10 are controlled, so that the pressure value in the glue storage tank 8 is adjusted to be larger than the pressure value in the closed cavity 2, and a certain pressure difference exists between the two pressure values. Therefore, the colloid can accelerate to flow into the closed cavity 2 under the double action of gravity and pressure imbalance, and the ring groove on the outer wall of the drill collar is filled quickly, so that the working efficiency of injecting the glue into the ring groove on the outer wall of the drill collar is improved.
Similarly, the air exhaust port 4 of the closed cavity 2 is connected with a third vacuum glue injection pipeline 12, the free end of the third vacuum glue injection pipeline 12 is connected with the vacuum generator 5, and a third vacuum valve 13 is further arranged on the third vacuum glue injection pipeline 12. Namely, the sealed cavity 2 is connected with a vacuum pump through a third vacuum glue injection pipeline 12, and the vacuum pump can continuously carry out vacuum pumping operation on the sealed cavity 2 so as to ensure that the vacuum environment can be maintained in the annular groove on the outer wall of the drill collar for a long time, and no new bubbles are generated in glue in the glue injection process. In addition, the pressure difference between the closed cavity 2 and the glue storage tank 8 is realized by controlling the third vacuum valve 13, and the flowing speed and the flowing time of the glue are ensured. And after the colloid is confirmed to be filled in the closed cavity 2, closing the third vacuum valve 13, stopping injecting the colloid, and starting a gel process. The third vacuum valve 13 is arranged to realize the overall effective control of the glue injection and gel process and prevent the waste caused by the continuous injection of the colloid after the annular groove on the outer wall of the drill collar is filled with the glue.
Specifically, the outer diameter of the closed cavity 2 is smaller than that of the drill collar 7, so that after the colloid is solidified, the maximum outer diameter of the colloid is smaller than that of the drill collar 7, and the colloid is prevented from being damaged due to touching the well wall in the drilling process. In the process of drilling, some hard particles slightly larger may appear on the well wall, and even if the maximum outer diameter of the colloid is equal to the outer diameter of the drill collar 7, the colloid is likely to be extruded and rubbed by the particles, so that the structure of the colloid is damaged, the bonding firmness of the colloid is influenced, and the normal operation of the antenna is finally influenced.
In the device, for the convenience of a user to control the whole glue injection process and accurately grasp the progress condition of each link, specifically, the vacuum glue injection pipeline 6, the second vacuum glue injection pipeline 9 and the third vacuum glue injection pipeline 12 are transparent pipelines, the user can visually see the flow speed and the flow progress condition of the glue, the opportunity that the glue is filled in the annular groove on the outer wall of the drill collar can be effectively ensured, and the third vacuum valve 13 is closed in time to prevent the waste of the glue.
The whole glue injection process comprises the following steps: the second vacuum valve 10 is opened first, the first vacuum valve 11 and the third vacuum valve 13 are in a closed state, and the inner cavity of the glue storage tank 8 is vacuumized. And after the vacuum degree reaches a specified value, closing the second vacuum valve 10, opening the third vacuum valve 13, and vacuumizing the annular groove on the outer wall of the drill collar. After the vacuum degree reaches the requirement (the pressure value in the glue storage tank 8 is greater than the pressure value in the ring groove of the outer wall of the drill collar), the first vacuum valve 11 is opened, and the glue rapidly flows downwards along the vacuum glue injection pipeline 6 under the action of gravity and downward positive pressure and is injected into the ring groove of the outer wall of the drill collar. And after the glue enters the third vacuum glue injection pipeline 12, closing the second vacuum valve 10 and stopping glue injection.
In the present injection molding apparatus, specifically, as shown in fig. 3 to 5, the injection molding sleeve 1 includes a first branch 14 and a second branch 15 which are butted against each other, and the first branch 14 and the second branch 15 are symmetrical with respect to a plane where a central axis of the injection molding sleeve 1 is located. After the glue injection sleeve 1 is formed in a one-time processing mode, the glue injection sleeve is cut along the central axis of the glue injection sleeve 1 through linear cutting. The glue injection sleeve 1 is convenient to clamp and fix on a machine tool, tool setting and positioning of linear cutting are convenient, and the consistency of processed products is good. Meanwhile, the product is manufactured symmetrically, and the torque on the butt joint surface after butt joint is symmetrical, so that the service time of the glue injection sleeve 1 is ensured to a certain extent. The first subsection 14 and the second subsection 15 are butted and then clamped on the outer wall of the drill collar 7, and the glue injection port 3 or the air extraction port 4 is respectively arranged on the first subsection 14 or the second subsection 15. In this scheme, injecting glue mouth 3 is located the top and establishes on first subsection 14, and extraction opening 4 is located the below and establishes on second subsection 15. The first subsection 14 and the second subsection 15 can be clamped in a threaded connection mode, a snap-fit snap-ring connection mode or a rib-groove insertion fit mode. No matter what kind of connection mode is selected, the glue injection device can be manufactured conveniently, is easy to operate and is stable in connection.
Meanwhile, in order to effectively ensure the air tightness of the closed cavity 2, a first seal ring groove 16 is circumferentially arranged on the inner wall, attached to the drill collar 7, of the first subsection 14, and a second seal ring groove 17 is circumferentially arranged on the inner wall of the second subsection 15, corresponding to the position of the first seal ring groove 16; the first seal ring groove 16 and the second seal ring groove 17 are butted to form a complete seal ring installation groove. A third seal groove 18 is provided on the abutment surface of the first or second subsection 14, 15. In the scheme, the sealing ring mounting grooves are symmetrically distributed about the radial central line of the ring groove on the outer wall of the drill collar, so that after the first subsection 14 and the second subsection 15 are butted and fixed, the sealing rings mounted in the two sealing ring mounting grooves are stressed symmetrically and uniformly, the air tightness of the closed cavity 2 is kept stable, the synchronous abrasion of the sealing rings on the two sides is facilitated, and the effective service time of the glue injection device is prolonged.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a injecting glue device of drill collar outer wall annular, its characterized in that includes:
the glue injection sleeve is sleeved on the periphery of the ring groove of the outer wall of the drill collar and forms an annular closed cavity with the ring groove of the outer wall, and a glue injection port and an air exhaust port which are communicated with the closed cavity are formed in the glue injection sleeve;
the vacuum generator is communicated with the air suction port of the closed cavity;
and the vacuum glue injection pipeline is communicated with the glue injection port of the closed cavity.
2. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 1, further comprising a glue storage tank filled with glue; one end of the vacuum glue injection pipeline is communicated with the glue injection port of the closed cavity, and the other end of the vacuum glue injection pipeline is communicated with the inner cavity of the glue storage tank.
3. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 2, wherein the glue storage tank is further connected with a second vacuum glue injection pipeline, and a free end of the second vacuum glue injection pipeline is connected with a vacuum generator.
4. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 3, wherein a second vacuum valve is arranged on the second vacuum glue injection pipeline.
5. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 2, wherein the glue storage tank is disposed above the sealed cavity, and the vacuum glue injection pipeline is provided with a first vacuum valve.
6. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 1, wherein a third vacuum glue injection pipeline is connected to the air extraction port of the sealed cavity, a free end of the third vacuum glue injection pipeline is connected to the vacuum generator, and a third vacuum valve is further disposed on the third vacuum glue injection pipeline.
7. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 1, wherein the glue injection sleeve comprises a first part and a second part which are butted with each other, the first part and the second part are symmetrical about a plane where a central axis of the glue injection sleeve is located, the first part and the second part are butted and then clamped on the outer wall of the drill collar, and the glue injection port or the air extraction port is respectively arranged on the first part or the second part.
8. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 7, wherein a first seal ring groove is circumferentially formed in the inner wall of the first sub, which is attached to the drill collar, and a second seal ring groove is circumferentially formed in the inner wall of the second sub, which corresponds to the first seal ring groove; and the first sealing ring groove and the second sealing ring groove are butted to form a complete sealing ring mounting groove.
9. The glue injection device for the ring groove in the outer wall of the drill collar as claimed in claim 7, wherein a third seal ring groove is formed on the abutting surface of the first subsection or the second subsection.
10. The apparatus of claim 1, wherein the outer diameter of the sealed cavity is smaller than the outer diameter of the drill collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920195508.XU CN210058792U (en) | 2019-02-13 | 2019-02-13 | Glue injection device for drill collar outer wall ring groove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920195508.XU CN210058792U (en) | 2019-02-13 | 2019-02-13 | Glue injection device for drill collar outer wall ring groove |
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| CN210058792U true CN210058792U (en) | 2020-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229545A (en) * | 2020-02-19 | 2020-06-05 | 青岛歌尔微电子研究院有限公司 | Glue resorption device and have its adhesive deposite device |
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2019
- 2019-02-13 CN CN201920195508.XU patent/CN210058792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229545A (en) * | 2020-02-19 | 2020-06-05 | 青岛歌尔微电子研究院有限公司 | Glue resorption device and have its adhesive deposite device |
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