CN204591250U - Rotary movable sealing structure and logger - Google Patents
Rotary movable sealing structure and logger Download PDFInfo
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- CN204591250U CN204591250U CN201520286221.XU CN201520286221U CN204591250U CN 204591250 U CN204591250 U CN 204591250U CN 201520286221 U CN201520286221 U CN 201520286221U CN 204591250 U CN204591250 U CN 204591250U
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Abstract
The utility model discloses a kind of rotary movable sealing structure and logger.Rotary movable sealing structure comprises: mandrel, it offers the through hole of up/down perforation; Top connection, sealing shroud is contained on mandrel; Lower contact, sealing shroud to be contained on mandrel and to close on top connection, and top connection and lower contact can relatively rotate on mandrel; First wear ring, is sleeved on mandrel, and adopts reinforced seal between the first wear ring and top connection and between the first wear ring and lower contact between top connection and lower contact; Upper protective jacket and lower protective jacket, be tightly connected top connection and lower contact respectively.The rotary movable sealing structure that the utility model provides, in logger decentralization process, foreign matter can be effectively stoped to enter in rotary movable sealing structure, the rotation of logger can be met and rock requirement simultaneously, effectively to ensure that logger can normally use after transferring, its practicality is remarkable.
Description
Technical field
The utility model relates to oil exploration equipment technical field, espespecially a kind of rotary movable sealing structure and logger.
Background technology
Logger can constantly raise and decentralize when underground work, in this process can the moment and wall friction collision, make logger rotate and rock; In addition, the gravity of logger itself also can cause constantly rotating in its decentralization process and rocking.Because the structure of the anti-rotation pipe nipple of logger is comparatively simple, accuracy is poor, the problems referred to above can make the static seal of anti-rotation pipe nipple and connection reliability decline, mud easily enters into anti-rotation pipe nipple can block logger rotation, thus have impact on the normal use of logger.
For this reason, how ensureing that logger its anti-rotation pipe nipple in decentralization process still can possess good static seal and connection reliability, is the technical problem that those skilled in the art needs solution badly.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of rotary movable sealing structure, can effectively stop foreign matter to enter in rotary movable sealing structure, ensures the normal work of logger.
In order to reach the utility model object, the utility model provides a kind of rotary movable sealing structure, comprising: mandrel, it offers the through hole of up/down perforation; Top connection, sealing shroud is contained on described mandrel; Lower contact, sealing shroud to be contained on described mandrel and to close on described top connection, and described top connection and described lower contact can relatively rotate on described mandrel; First wear ring, is sleeved on described mandrel, and adopts reinforced seal between described first wear ring and described top connection and between described first wear ring and described lower contact between described top connection and described lower contact; Upper protective jacket and lower protective jacket, be tightly connected described top connection and described lower contact respectively.
Alternatively, described rotary movable sealing structure also comprises: the second wear ring, and described top connection is sleeved on described mandrel rotationally, described lower contact is fixedly set on described mandrel, and described second wear ring is installed between described top connection and described mandrel.
Alternatively, described rotary movable sealing structure also comprises: mount pad, and described mount pad is fixed on described top connection or described mandrel, and described second wear ring is fixed on described mount pad.
Alternatively, described mount pad and described second wear ring include two, and two described mount pads and two described second wear rings respectively one_to_one corresponding be arranged on the place of both ends up and down of described top connection.
Alternatively, the mount pad closing on the lower end of described first wear ring being arranged at described top connection is supporting seat; The mount pad being arranged at the upper end away from described first wear ring of described top connection is retainer ring.
Alternatively, described rotary movable sealing structure also comprises: two skeleton sealing elements, one of them is positioned at described supporting seat and is sleeved on described mandrel, reinforced seal is realized by this skeleton sealing element between described first wear ring and described top connection, wherein another is positioned at described lower contact and is sleeved on described mandrel, realizes reinforced seal between described first wear ring and described lower contact by this skeleton sealing element; And O-ring seals, be arranged between described top connection and described mandrel, between described top connection and described upper protective jacket, between described lower contact and described mandrel and between described lower contact and described lower protective jacket.
Alternatively, above-mentioned rotary movable sealing structure also comprises: bearing, is sleeved on described mandrel, and conflict in its one end, the shaft shoulder on described mandrel, the other end are conflicted one end away from described first wear ring of described top connection.
Alternatively, described bearing is thrust ball bearing, and described first wear ring and/or described second wear ring are bronze wear ring; And all adopt between described top connection with described upper protective jacket, between described lower contact with described lower protective jacket and between described lower contact with described mandrel and be threaded.
Alternatively, described upper protective jacket and/or described lower protective jacket also offer oil filler point, and described oil filler point is connected with described through hole.
The utility model additionally provides a kind of logger, comprising: instrument body; With the rotary movable sealing structure described in above-mentioned any embodiment, the free end of described upper protective jacket or described lower protective jacket is connected with described instrument body.
Compared to the prior art rotary movable sealing structure of the present utility model, has following beneficial effect:
The rotary movable sealing structure that the utility model provides, because the first wear ring and reinforced seal are to the stop of mud, in logger decentralization process, foreign matter is effectively prevented to enter in rotary movable sealing structure, also just meet the rotation of logger and rock requirement, and then effectively ensure that logger can normally use after transferring, its practicality is remarkable.
Wherein, rotary movable sealing structure also in use can alleviate the torsion of the cable connecting logger, can improve the application life of cable.
Second wearing piece of rotary movable sealing structure of the present utility model, for reducing the wearing and tearing in top connection rotation process, extend the application life of top connection, the cost of the second wear ring is lower relative to top connection, the second wear ring after a long time use by changing loss stops top connection to be worn and torn, and effectively can reduce the maintenance cost of rotating seal.
The skeleton sealing element of rotary movable sealing structure of the present utility model and O-ring seals, skeleton sealing element plays auxiliary sealing function, and the O-ring seals of mandrel both sides plays main sealing function.Wherein, outside framework oil seal part mainly stops outside high temperature mud liquid to enter the inside of rotary movable sealing structure, and the self-tightening spring above it adds the reliability of sealing.Because most high temperature mud liquid stops by skeleton sealing element, so the working environment of O-ring seals is better, its sealing effectiveness and application life is caused all greatly to extend.Preferably, skeleton sealing element adopts oil sealing.
Rotary movable sealing structure of the present utility model; oil filler point place on it can the inside oiling of rotary movable sealing structure in the past; through hole above mandrel can be communicated with logger; make the inside fluid of rotary movable sealing structure even; shell for logger provides interior pressure, plays the object of protection logger shell.
Rotary movable sealing structure of the present utility model, effectively can stop foreign matter to enter in rotary movable sealing structure, and meet the rotation of logger and rock requirement.
Other features and advantages of the utility model will be set forth in the following description, and, partly become apparent from manual, or understand by implementing the utility model.The purpose of this utility model and other advantages realize by structure specifically noted in manual, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical solutions of the utility model, and forms a part for manual, is used from explanation the technical solution of the utility model, does not form the restriction to technical solutions of the utility model with the embodiment one of the application.
Fig. 1 is the sectional structure schematic diagram of rotary movable sealing structure described in the utility model;
Fig. 2 is the partial structurtes schematic diagram of movable sealing structure rotary shown in Fig. 1.
Wherein, the corresponding relation in Fig. 1 and Fig. 2 between Reference numeral and component names is:
1 mandrel, 11 through holes, 2 top connections, 3 lower contacts, 4 first wear rings, protective jacket on 5,6 times protective jackets, 61 oil filler points, 7 second wear rings, 81 retainer rings, 82 supporting seats, 9 skeleton sealing elements, 91O shape sealing ring, 10 bearings.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly understand, hereinafter will be described in detail to embodiment of the present utility model by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
Can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing.Further, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Below in conjunction with accompanying drawing, the rotary movable sealing structure described in some embodiments of the utility model is described.
The rotary movable sealing structure that the utility model provides, as depicted in figs. 1 and 2, comprising: mandrel 1, it offers the through hole 11 of up/down perforation; Top connection 2, sealing shroud is contained on described mandrel 1; Lower contact 3, sealing shroud to be contained on described mandrel 1 and to close on described top connection 2, and described top connection 2 and described lower contact 3 can relatively rotate on described mandrel 1; First wear ring 4, is sleeved on described mandrel 1, and adopts reinforced seal between described first wear ring 4 and described top connection 2 and between described first wear ring 4 and described lower contact 3 between described top connection 2 and described lower contact 3; Upper protective jacket 5 and lower protective jacket 6, be tightly connected described top connection 2 and described lower contact 3 respectively.
The rotary movable sealing structure that the utility model provides, because the first wear ring and reinforced seal are to the stop of mud, in logger decentralization process, foreign matter is effectively prevented to enter in rotary movable sealing structure, also just meet the rotation of logger and rock requirement, and then effectively ensure that logger can normally use after transferring, its practicality is remarkable.
Wherein, the rotary movable sealing structure that the utility model provides can relatively rotate due to top connection 2 and lower contact 3, and this structure also in use alleviates the torsion of the cable connecting logger, improves the application life of cable.
Preferably, the gap between top connection 2 and the first wear ring 4 and between lower contact 3 and the first wear ring 4 is not more than 0.12mm, enters in rotary movable sealing structure to stop particle larger in mud better.
In addition, the rotary movable sealing structure that the utility model above-described embodiment provides also has following features:
In an embodiment of the present utility model, as depicted in figs. 1 and 2, described rotary movable sealing structure also comprises: the second wear ring 7, described top connection 2 is sleeved on described mandrel 1 rotationally, described lower contact 3 is fixedly set on described mandrel 1, described second wear ring 7 is installed between described top connection 2 and described mandrel 1, for reducing the wearing and tearing in top connection 2 rotation process, extend the application life of top connection 2, the cost of the second wear ring 7 is lower relative to top connection 2, the second wear ring 7 after a long time use by changing loss stops top connection 2 to be worn and torn, effectively reduce the maintenance cost of rotating seal.
Certainly, can be that top connection 2 is fixed on the upper and lower joint 3 of mandrel 1 and is sleeved on mandrel 1 rotationally, can realize the object of the application, its aim depart from design philosophy of the present utility model, does not repeat them here yet, but should belong in the protection domain of the application yet.
Further, described rotary movable sealing structure also comprises: mount pad, and described mount pad is fixed on described top connection 2 or described mandrel 1, and described second wear ring 7 is fixed on described mount pad; That is: described second wear ring 7 is fixed on described top connection 2 or described mandrel 1 by described mount pad, be convenient to position the second wear ring 7 and follow-up maintenance, installation.
Wherein, as depicted in figs. 1 and 2, described mount pad and described second wear ring 7 include two, and two described mount pads and two described second wear ring 7 one_to_one corresponding are arranged on the place of both ends up and down of described top connection 2, with make top connection 2 and mandrel 1 separately, eliminates skimming wear problem, reach the object in the application life of prolongation top connection 2 further.
Particularly, one in mount pad described in two is retainer ring 81, another is supporting seat 82, and the upper end away from described first wear ring 4 that described supporting seat 82 is arranged at the lower end of closing on described first wear ring 4 of described top connection 2, described retainer ring 81 is arranged at described top connection 2.Wherein, the machining accuracy of supporting seat 82 is higher, and such structure ensure that the manufacturability of Product processing.
In addition, as depicted in figs. 1 and 2, described rotary movable sealing structure also comprises: two skeleton sealing elements 9, one of them is positioned at described supporting seat 82 and is sleeved on described mandrel 1, reinforced seal is realized by this skeleton sealing element 9 between described first wear ring 4 and described top connection 2, wherein another is positioned at described lower contact 3 and is sleeved on described mandrel 1, realizes reinforced seal between described first wear ring and described lower contact 3 by this skeleton sealing element 9; With multiple O-ring seals 91, be arranged between described top connection 2 and described mandrel 1, between described top connection 2 and described upper protective jacket 5, between described lower contact 3 and described mandrel 1 and between described lower contact 3 and described lower protective jacket 6.
In this configuration, the sealing function that skeleton sealing element 9 is auxiliary, the sealing function that the O-ring seals 91 of mandrel 1 both sides is main.Wherein, outside framework oil seal part mainly stops outside high temperature mud liquid to enter the inside of rotary movable sealing structure, and the self-tightening spring above it adds the reliability of sealing.Because most high temperature mud liquid stops by skeleton sealing element 9, so the working environment of O-ring seals 91 is better, its sealing effectiveness and application life is caused all greatly to extend.Preferably, skeleton sealing element 9 adopts oil sealing.
Moreover, as depicted in figs. 1 and 2, above-mentioned rotary movable sealing structure also comprises: bearing 10, is sleeved on described mandrel 1, and conflict in its one end, the shaft shoulder on described mandrel 1, the other end are conflicted one end (that is: upper end) away from described first wear ring 4 of described top connection 2.
Particularly, described bearing 10 is that thrust ball bearing (can ensure that mandrel 1 has higher running accuracy bearing larger axis while load, the application life of each seal that further prolongation is mated), described first wear ring 4 and/or described second wear ring 7 are that (its abrasion resistance is good for bronze wear ring, and to mandrel 1, there is certain centralizing function, the axiality of rotary movable sealing structure can be ensured, also can protect each sealing ring and bearing 10 simultaneously); And all adopt between described top connection 2 with described upper protective jacket 5, between described lower contact 3 with described lower protective jacket 6 and between described lower contact 3 with described mandrel 1 and be threaded.
Certainly; also can adopt between described top connection 2 with described upper protective jacket 5, between described lower contact 3 with described lower protective jacket 6 and between described lower contact 3 with described mandrel 1 weld, the connected mode such as clamping; all can realize the object of the application; its aim does not depart from design philosophy of the present utility model; do not repeat them here, but should belong in the protection domain of the application.
In addition, described upper protective jacket 5 and/or described lower protective jacket 6 also offer oil filler point 61, and described oil filler point is connected with described through hole 11.
Oil filler point 61 place can the inside oiling of rotary movable sealing structure in the past; through hole 11 above mandrel 1 can be communicated with logger; make the inside fluid of rotary movable sealing structure even, the shell for logger provides interior pressure, plays the object of protection logger shell.
In an embodiment of the present utility model, described oil filler point 61 is opened on described lower protective jacket 6.
The utility model additionally provides a kind of logger (not shown), comprising: instrument body; With the rotary movable sealing structure described in above-mentioned any embodiment, the free end of described upper protective jacket 5 or described lower protective jacket 6 is connected with described instrument body.
The logger that the utility model provides has all advantages of above-mentioned rotary movable sealing structure, does not repeat them here, but should belong in the protection domain of the application.
In sum, the rotary movable sealing structure that the utility model provides, in logger decentralization process, foreign matter can be effectively stoped to enter in rotary movable sealing structure, the rotation of logger can be met and rock requirement simultaneously, effectively to ensure that logger can normally use after transferring, its practicality is remarkable.
Although the embodiment disclosed by the utility model is as above, the embodiment that described content only adopts for ease of understanding the utility model, and be not used to limit the utility model.Those of skill in the art belonging to any the utility model; under the prerequisite not departing from the spirit and scope disclosed by the utility model; any amendment and change can be carried out in the form implemented and details; but scope of patent protection of the present utility model, the scope that still must define with appending claims is as the criterion.
Claims (10)
1. a rotary movable sealing structure, is characterized in that, comprising:
Mandrel (1), it offers the through hole (11) of up/down perforation;
Top connection (2), sealing shroud is contained on described mandrel (1);
Lower contact (3), sealing shroud is contained in described mandrel (1) and goes up and close on described top connection (2), and described top connection (2) and described lower contact (3) can relatively rotate on described mandrel (1);
First wear ring (4), to be positioned between described top connection (2) and described lower contact (3) and to be sleeved on described mandrel (1), and adopting reinforced seal between described first wear ring (4) and described top connection (2) and between described first wear ring (4) and described lower contact (3);
Upper protective jacket (5) and lower protective jacket (6), be tightly connected described top connection (2) and described lower contact (3) respectively.
2. rotary movable sealing structure according to claim 1, is characterized in that, also comprise:
Second wear ring (7), described top connection (2) is sleeved on described mandrel (1) rotationally, described lower contact (3) is fixedly set on described mandrel (1), and described second wear ring (7) is installed between described top connection (2) and described mandrel (1).
3. rotary movable sealing structure according to claim 2, is characterized in that, also comprise:
Mount pad, be fixed on described top connection (2) or described mandrel (1), described second wear ring (7) is fixed on described mount pad.
4. rotary movable sealing structure according to claim 3, is characterized in that,
Described mount pad and described second wear ring (7) include two, and two mount pads and two the second wear rings (7) respectively one_to_one corresponding be arranged on the place of both ends up and down of described top connection (2).
5. rotary movable sealing structure according to claim 4, is characterized in that,
The mount pad closing on the lower end of described first wear ring (4) being arranged at described top connection (2) is supporting seat (82);
The mount pad being arranged at the end away from described first wear ring (4) of described top connection (2) is retainer ring (81).
6. rotary movable sealing structure according to claim 5, is characterized in that, also comprise:
Two skeleton sealing elements (9), one of them is positioned at described supporting seat (82) and is sleeved on described mandrel (1), reinforced seal is realized by this skeleton sealing element (9) between described first wear ring (4) and described top connection (2), wherein another is positioned at described lower contact (3) and is sleeved on described mandrel (1), realizes reinforced seal between described first wear ring (4) and described lower contact (3) by this skeleton sealing element (9); With
O-ring seals (91), is arranged between described top connection (2) and described mandrel (1), between described top connection (2) and described upper protective jacket (5), between described lower contact (3) and described mandrel (1) and between described lower contact (3) and described lower protective jacket (6).
7. the rotary movable sealing structure according to any one of claim 2 to 6, is characterized in that, also comprise:
Bearing (10), be sleeved on described mandrel (1), the shaft shoulder and conflict in its one end on described mandrel (1), the other end are conflicted one end away from described first wear ring (4) of described top connection (2).
8. rotary movable sealing structure according to claim 7, is characterized in that,
Described bearing (10) is thrust ball bearing, and described first wear ring (4) and/or described second wear ring (7) are bronze wear ring; And
All adopt between described top connection (2) with described upper protective jacket (5), between described lower contact (3) with described lower protective jacket (6) and between described lower contact (3) with described mandrel (1) and be threaded.
9. rotary movable sealing structure according to any one of claim 1 to 6, is characterized in that,
Described upper protective jacket (5) and/or described lower protective jacket (6) also offer oil filler point (61), and described oil filler point (61) is connected with described through hole (11).
10. a logger, is characterized in that, comprising:
Instrument body; With
Rotary movable sealing structure as claimed in any one of claims 1-9 wherein, the free end of described upper protective jacket (5) or described lower protective jacket (6) is connected with described instrument body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520286221.XU CN204591250U (en) | 2015-05-05 | 2015-05-05 | Rotary movable sealing structure and logger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520286221.XU CN204591250U (en) | 2015-05-05 | 2015-05-05 | Rotary movable sealing structure and logger |
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| Publication Number | Publication Date |
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| CN204591250U true CN204591250U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520286221.XU Active CN204591250U (en) | 2015-05-05 | 2015-05-05 | Rotary movable sealing structure and logger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522929A (en) * | 2016-12-07 | 2017-03-22 | 中国石油天然气集团公司 | Ultrasound well diameter during-drilling well logging device |
| CN106968958A (en) * | 2017-03-30 | 2017-07-21 | 河北技投机械设备有限公司 | A kind of adjustable high-efficiency abrasion-proof disk device applied in metal inner lining Pulp pump |
| CN111577248A (en) * | 2020-04-27 | 2020-08-25 | 中国海洋石油集团有限公司 | Anti-rotation logging instrument |
| CN111855103A (en) * | 2020-08-13 | 2020-10-30 | 北京星际荣耀空间科技有限公司 | Mechanical seal detection device |
-
2015
- 2015-05-05 CN CN201520286221.XU patent/CN204591250U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522929A (en) * | 2016-12-07 | 2017-03-22 | 中国石油天然气集团公司 | Ultrasound well diameter during-drilling well logging device |
| CN106522929B (en) * | 2016-12-07 | 2020-01-07 | 中国石油天然气集团公司 | Ultrasonic borehole diameter logging-while-drilling device |
| CN106968958A (en) * | 2017-03-30 | 2017-07-21 | 河北技投机械设备有限公司 | A kind of adjustable high-efficiency abrasion-proof disk device applied in metal inner lining Pulp pump |
| CN106968958B (en) * | 2017-03-30 | 2023-03-31 | 河北技投机械设备有限公司 | Adjustable efficient wear-resisting disc device applied to metal lining slurry pump |
| CN111577248A (en) * | 2020-04-27 | 2020-08-25 | 中国海洋石油集团有限公司 | Anti-rotation logging instrument |
| CN111855103A (en) * | 2020-08-13 | 2020-10-30 | 北京星际荣耀空间科技有限公司 | Mechanical seal detection device |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |