CN209780776U - Novel oil well pipe fitting sealing device - Google Patents
Novel oil well pipe fitting sealing device Download PDFInfo
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- CN209780776U CN209780776U CN201920308237.4U CN201920308237U CN209780776U CN 209780776 U CN209780776 U CN 209780776U CN 201920308237 U CN201920308237 U CN 201920308237U CN 209780776 U CN209780776 U CN 209780776U
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- sealing device
- sealing
- oil well
- pipe fitting
- well pipe
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Abstract
The utility model discloses a novel oil well pipe fitting sealing device, the structure of which comprises a sealing device body, anti-skid lines, a sealing ring, a groove, an inner pipe sealing device and an auxiliary sealing device, in order to solve the problem of natural gas leakage caused by poor sealing effect on the inner pipe of an oil casing, the bottom of the auxiliary sealing device is provided with the inner pipe sealing device, the fixing device is fixed inside the oil casing by rotating the fixing device, then the rotating part is rotated to rotate downwards, pressure is applied to the sealing part, the sealing part is extruded and expanded transversely by stress, the sealing part is tightly attached to the oil casing to seal, the effect of preventing natural gas leakage is achieved, in order to solve the problem of danger caused by poor auxiliary sealing performance on the top of the oil casing, the auxiliary sealing device is arranged at the bottom of the sealing device body, elasticity is provided by a spring and is applied to a bottom plate, make the inseparable laminating oil casing top in silica gel layer, prevent that gas from spilling, reach the effect that improves supplementary sealing performance.
Description
Technical Field
The utility model relates to a sealing device technical field, concretely relates to novel oil well pipe fitting sealing device.
Background
Petroleum is a fluid mineral deeply buried underground, firstly, people refer to oily liquid mineral produced in nature as petroleum, refer to combustible gas as natural gas, refer to solid combustible oily mineral as asphalt, and with the further research on the minerals, the oil well pipe is a hydrocarbon compound in composition and is commonly called petroleum because of mutual relationship in cause, the oil well pipe is a petroleum casing pipe, an oil pipe and a drill string component (a drill pipe, a drill collar, a square drill pipe and the like) in the petroleum industry and is commonly called an oil well pipe which is a steel pipe used for supporting the walls of oil wells and gas wells so as to ensure the normal operation of the whole oil well after the drilling process and the completion, after the oil casing pipe is laid, the sealing device is required to be used for sealing when the oil casing pipe is not exploited so as to prevent the leakage of the natural gas and the occurrence of accidents, the sealing device is usually connected through a single thread, and the sealing effect is poor, novel oil well pipe fitting sealing device has obtained the technological improvement, but prior art is not good to the sealed effect of oil casing inner tube, leads to the natural gas to reveal, and is not good to the supplementary sealing performance in oil casing top, has danger.
SUMMERY OF THE UTILITY MODEL
technical problem to be solved
In order to overcome the prior art not enough, present a novel oil well pipe fitting sealing device, solved not good to the sealed effect of oil casing inner tube, lead to the natural gas to reveal, it is not good to the supplementary sealing performance in oil casing top, have dangerous problem to reach sealed oil casing inner tube and supplementary sealed oil casing top, prevent the effect that the natural gas revealed.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a novel oil well pipe fitting sealing device, which comprises a sealing device body, anti-skid lines, a sealing ring, a groove, an inner pipe sealing device and an auxiliary sealing device, wherein the anti-skid lines are arranged on the outer surface of the top of the sealing device body, the outer diameter of the sealing ring is fixedly connected with the inner surface of the middle part of the sealing device body, the inner side of the top of the sealing device body is fixedly connected with the top of the auxiliary sealing device, the groove is arranged at the bottom of the auxiliary sealing device, the inner pipe sealing device is arranged at the inner side of the top of the sealing device body, the inner pipe sealing device is composed of a fixing piece, a first external thread, a second external thread, a connecting port, a sealing piece, a rotating piece and a second internal thread, the outer surface of the bottom of the fixing piece and the outer surface of, the sealing element middle part is fixedly connected with the outer surface of the fixing element middle part, the rotating element bottom is fixedly connected with the fixing element top, and the fixing element is arranged at the bottom of the auxiliary sealing device.
Further, supplementary sealing device comprises roof, last spacing block, spring, spacing block, bottom plate and silica gel layer down, roof bottom and last spacing block top fixed connection, go up spacing block bottom and spring top fixed connection, spring bottom and spacing block top fixed connection down, the spacing block sets up in the bottom plate top down, bottom plate bottom and silica gel layer top fixed connection, the roof top and the inboard fixed connection in sealing device body top.
Furthermore, the inner surface of the sealing device body is provided with an internal thread, and the size of the first internal thread is matched with that of the first external thread.
Further, the rotating part bottom rotates along the fixed part top by 0-360 degrees.
Further, the size of the second external thread is matched with that of the second internal thread.
Furthermore, the number of the springs is six, and the springs circularly surround the bottom of the top plate.
Further, the shape of silica gel layer is circular, and thickness is 1 cm.
Further, the fixing piece is made of the following materials: the tungsten steel has high hardness, good wear resistance, good toughness, heat resistance, corrosion resistance and other excellent performances.
Further, the sealing member is made of: the hydrogenated nitrile rubber has good heat resistance, chemical corrosion resistance and ozone resistance and higher compression set resistance.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
1) The oil casing pipe inner tube sealing effect is not good for solving, lead to the problem that the natural gas was revealed, through having set up inner tube sealing device in supplementary sealing device bottom, through rotatory mounting, fix the mounting inside the oil casing pipe through the first external screw thread that the bottom set up, the rotatory rotation piece of rethread makes its downwardly rotating, exert pressure to the sealing member, make sealing member atress extrusion and horizontal inflation, closely laminate with the oil casing pipe and seal, reach the internal seal of managing, prevent the effect that the natural gas was revealed.
2) the problem that the auxiliary sealing performance of the top of the petroleum casing is poor and dangerous is solved, the auxiliary sealing device is arranged at the bottom of the sealing device body, elastic force is provided by the spring and applied to the bottom plate, the top of the petroleum casing tightly attached to the silica gel layer is prevented from leaking, and the effect of improving the auxiliary sealing performance is achieved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
Fig. 1 is a schematic structural view of the present invention;
Fig. 2 is a schematic sectional structure of the present invention;
Fig. 3 is an explosion structure diagram of the inner tube sealing device of the present invention;
Fig. 4 is a schematic front view of the auxiliary sealing device of the present invention.
In the figure: the anti-slip sealing device comprises a sealing device body-1, anti-slip threads-2, a sealing ring-3, an inner tube sealing device-4, an auxiliary sealing device-5, a groove-6, a fixing piece-41, a first external thread-42, a second external thread-43, a connecting port-44, a sealing piece-45, a rotating piece-46, a second internal thread-47, a top plate-51, an upper limiting block-52, a spring-53, a lower limiting block-54, a bottom plate-55 and a silica gel layer-56.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
referring to fig. 1, 2, 3 and 4, the present invention provides a novel oil well pipe sealing device: comprises a sealing device body 1, anti-skid grains 2, a sealing ring 3, a groove 6, an inner pipe sealing device 4 and an auxiliary sealing device 5, wherein the anti-skid grains 2 are arranged on the outer surface of the top of the sealing device body 1, the outer diameter of the sealing ring 3 is fixedly connected with the inner surface of the middle part of the sealing device body 1, the inner side of the top of the sealing device body 1 is fixedly connected with the top of the auxiliary sealing device 5, the groove 6 is arranged at the bottom of the auxiliary sealing device 5, the inner pipe sealing device 4 is arranged on the inner side of the top of the sealing device body 1, the inner pipe sealing device 4 consists of a fixing part 41, a first external thread 42, a second external thread 43, a connecting port 44, a sealing part 45, a rotating part 46 and a second internal thread 47, the outer surface of the bottom of the fixing part 41 and the, the middle part of the sealing element 45 is fixedly connected with the outer surface of the middle part of the fixed element 41, the bottom of the rotating element 46 is fixedly connected with the top of the fixed element 41, and the fixed element 41 is arranged at the bottom of the auxiliary sealing device 5.
The auxiliary sealing device 5 is composed of a top plate 51, an upper limiting block 52, a spring 53, a lower limiting block 54, a bottom plate 55 and a silica gel layer 56, the bottom of the top plate 51 is fixedly connected with the top of the upper limiting block 52, the bottom of the upper limiting block 52 is fixedly connected with the top of the spring 53, the bottom of the spring 53 is fixedly connected with the top of the lower limiting block 54, the lower limiting block 54 is arranged at the top of the bottom plate 55, the bottom of the bottom plate 55 is fixedly connected with the top of the silica gel layer 56, and the top of the top plate 51 is fixedly connected with the inner side of the top of the.
Wherein, sealing device body 1 internal surface is provided with the internal thread, and first internal thread size and first external screw thread 42 size match each other, conveniently carry out fixed connection.
Wherein, the rotation angle of the bottom of the rotating member 46 along the top of the fixed member 41 is 0-360 degrees, which facilitates the pressing of the sealing member 45.
The size of the second external thread 43 is matched with the size of the second internal thread 47, so that the fixed connection is convenient to carry out.
Six springs 53 are arranged and circularly surround the bottom of the top plate 51, so that downward elastic force can be conveniently applied to the bottom plate 55.
The silica gel layer 56 is circular and 1cm thick, and can be used for sealing the top of the oil well pipe after extrusion.
The fixing member 41 is made of: the tungsten steel has high hardness, good wear resistance, good toughness, heat resistance, corrosion resistance and other excellent performances.
The material of the sealing member 45 is: the hydrogenated nitrile rubber has good heat resistance, chemical corrosion resistance and ozone resistance and higher compression set resistance.
The hydrogenated nitrile rubber is a highly saturated elastomer obtained by performing special hydrotreatment on nitrile rubber, and has good oil resistance (good resistance to fuel oil, lubricating oil and aromatic solvents); and because of its highly saturated structure, make it have good heat resistance, fine chemical resistance (to freon, acid, alkali have good resistance), excellent ozone resistance, higher compression set resistance; meanwhile, the hydrogenated nitrile rubber has the characteristics of high strength, high tearing property, excellent wear resistance and the like, and is one of rubbers with extremely excellent comprehensive properties.
The working principle is as follows: firstly, the device is moved to a proper position, the device is connected with a connecting port 44 arranged at the top of a fixed part 41 through an external locking tool, the fixed part 41 is screwed into the inside of an oil casing through a first external thread 42 arranged at the bottom, then the device is connected with a rotating part 46 through the external locking tool, the rotating part 46 is matched with a second external thread 43 arranged on the outer surface of the top of the fixed part 41 through a second internal thread 47 arranged on the inner surface to rotate, the bottom of the rotating part 46 rotates downwards along the top of the fixed part 41, pressure is applied to a sealing part 45, the sealing part 45 is extruded and expanded transversely under force and is tightly attached to the oil casing to seal the oil casing, the inner pipe is sealed, then the bottom of a sealing device body 1 is in threaded connection with the top of the oil casing, the sealing device body 1 slides downwards to be locked, sealing is performed through a sealing ring 3, and, make spring 53 atress compress, produce reverse elasticity, apply for bottom plate 55, make the inseparable laminating oil casing top of silica gel layer 56, seal oil casing top, through rotatory mounting 41, fix mounting 41 inside the oil casing through the first external screw thread 42 that the bottom set up, rethread rotation spare 46, make it rotate downwards, exert pressure to sealing member 45, make sealing member 45 atress extrusion and horizontal inflation, closely laminate with the oil casing and seal, reach to seal the inner tube, prevent the effect that the natural gas revealed, through set up supplementary sealing device 5 in sealing device body 1 bottom, provide elasticity by spring 53, apply for bottom plate 55, make the inseparable laminating oil casing top of silica gel layer 56, prevent that gas from spilling, reach the effect that improves supplementary sealing performance.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a novel oil well pipe fitting sealing device, includes sealing device body (1), anti-skidding line (2), sealing washer (3) and recess (6), its characterized in that: the sealing device comprises a sealing device body (1), and is characterized by further comprising an inner pipe sealing device (4) and an auxiliary sealing device (5), wherein the outer surface of the top of the sealing device body (1) is provided with anti-skid grains (2), the outer diameter of a sealing ring (3) is fixedly connected with the inner surface of the middle part of the sealing device body (1), the inner side of the top of the sealing device body (1) is fixedly connected with the top of the auxiliary sealing device (5), a groove (6) is formed in the bottom of the auxiliary sealing device (5), the inner pipe sealing device (4) is arranged on the inner side of the top of the sealing device body (1), the inner pipe sealing device (4) is composed of a fixing piece (41), a first external thread (42), a second external thread (43), a connecting port (44), a sealing piece (45), a rotating piece (46) and a second internal thread (47, the utility model discloses a sealing device, including fixing piece (41), sealing member (41), fixing piece (41) and rotation piece (46), the outer surface in fixing piece (41) top is provided with second external screw thread (43), fixing piece (41) all is provided with connector (44) with rotation piece (46) top, sealing member (45) middle part and fixing piece (41) middle part outer fixed surface are connected, rotate piece (46) bottom and fixing piece (41) top fixed connection, fixing piece (41) set up in supplementary sealing device (5) bottom.
2. a novel oil well pipe fitting sealing device as claimed in claim 1, wherein: supplementary sealing device (5) comprise roof (51), last spacing block (52), spring (53), spacing block (54) down, bottom plate (55) and silica gel layer (56), roof (51) bottom and last spacing block (52) top fixed connection, go up spacing block (52) bottom and spring (53) top fixed connection, spring (53) bottom and spacing block (54) top fixed connection down, spacing block (54) set up in bottom plate (55) top down, bottom plate (55) bottom and silica gel layer (56) top fixed connection, roof (51) top and the inboard fixed connection in sealing device body (1) top.
3. A novel oil well pipe fitting sealing device as claimed in claim 1, wherein: the sealing device is characterized in that an inner thread is arranged on the inner surface of the sealing device body (1), and the size of the first inner thread is matched with that of the first outer thread (42).
4. A novel oil well pipe fitting sealing device as claimed in claim 1, wherein: the bottom of the rotating part (46) rotates along the top of the fixed part (41) by 0-360 degrees.
5. A novel oil well pipe fitting sealing device as claimed in claim 1, wherein: the size of the second external thread (43) is matched with that of the second internal thread (47).
6. A novel oil well pipe fitting sealing device as claimed in claim 2, wherein: six springs (53) are arranged and circularly surround the bottom of the top plate (51).
7. A novel oil well pipe fitting sealing device as claimed in claim 2, wherein: the silica gel layer (56) is circular and 1cm thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308237.4U CN209780776U (en) | 2019-03-12 | 2019-03-12 | Novel oil well pipe fitting sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308237.4U CN209780776U (en) | 2019-03-12 | 2019-03-12 | Novel oil well pipe fitting sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209780776U true CN209780776U (en) | 2019-12-13 |
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ID=68797467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920308237.4U Expired - Fee Related CN209780776U (en) | 2019-03-12 | 2019-03-12 | Novel oil well pipe fitting sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209780776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065305A (en) * | 2020-11-12 | 2020-12-11 | 东营同博石油电子仪器有限公司 | Oil pipe dropout prevention means is used in oil field exploitation |
-
2019
- 2019-03-12 CN CN201920308237.4U patent/CN209780776U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065305A (en) * | 2020-11-12 | 2020-12-11 | 东营同博石油电子仪器有限公司 | Oil pipe dropout prevention means is used in oil field exploitation |
| CN112065305B (en) * | 2020-11-12 | 2021-02-02 | 中国石油化工股份有限公司 | Oil pipe dropout prevention means is used in oil field exploitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |