CN200964817Y - General high pressure portable self-sealing core - Google Patents
General high pressure portable self-sealing core Download PDFInfo
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- CN200964817Y CN200964817Y CN 200620099785 CN200620099785U CN200964817Y CN 200964817 Y CN200964817 Y CN 200964817Y CN 200620099785 CN200620099785 CN 200620099785 CN 200620099785 U CN200620099785 U CN 200620099785U CN 200964817 Y CN200964817 Y CN 200964817Y
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- high pressure
- core
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Abstract
The utility model relates to a universal high pressure portable self sealing core applied to oil field operating, which belongs to the wellhead tool field. The utility model comprises a core body, an upper flange, a bugle shape lap. The upper part of the core body is provided with the upper flange, the lower part of the core body is provided with the bugle shape lap, the center of the core body is provided with a through hole. The through hole comprises an inverted circular platform shaped inner hole, a straight shaped inner hole, a drum shaped inner hole, a screw thread inner hole, and a bugle shape hole from upper to bottom sequentially. An inclined surface is arranged between the top side and the bottom of the upper flange that are respectively provided with a circular groove. The utility model solves the faults of the existing wellhead high pressure self sealing core: first, not reacting on the removing of oil adhere to the oil tube; second, not bearing the high pressure under the well, often appearing the discharging of the oil; third, the self sealing core is easy to be destroyed because of the impact of the attrition of the oil tube and the pressure under the well. The utility model is appropriate to remove the oil adhere to the outer surface of the oil tube and make sealing to the wellhead when disassembling the oil tube for all kinds of oil fields.
Description
Technical field:
The utility model relates to a kind of self-styled core, particularly a kind of light self-styled core of general high pressure that is used for oil field operation.The rig tool field that belongs to oil field operation.
Background technology:
Oil field operation in order to strike off the crude oil that the oil pipe external surface adheres to, and is sealed the pressure of down-hole when removing oil pipe, will use self-styled on well head.And the quality of self-styled effect, key is self-styled interior self-styled core.But existing well head is self-styled, and particularly the high pressure of well head is self-styled, and the profile of the self-styled core in it all is one " Xia " word shape, and there is shape perforation always the centre.Be outside the deficiency of this kind structure: the one, the crude oil that oil pipe is adhered to does not have the effect of striking off; The 2nd, hold high pressure that can't stand the down-hole, the problem that crude oil leaks often appears; The 3rd, this kind structure is subjected to the friction of oil pipe and the impact of down-hole pressure, and self-styled core very easily is damaged.
Summary of the invention:
The purpose of this utility model is: a kind of deficiency that can overcome above-mentioned self-styled cored structure is provided, and profile adopts mushroom shaped, and middle through hole is made of a plurality of geometry shapes, and the top cover top and bottom are shaped on annular groove; Can bear high pressure, can thoroughly remove the crude oil that sticks on the oil pipe again, wearing and tearing back and the light self-styled core of general high pressure that can compensate automatically.
The utility model is to realize above-mentioned purpose by the following technical solutions.
The light self-styled core of this general high pressure is made of core body, upper flange, the tubaeform bottom, and it is characterized in that: the top of core body is shaped on upper flange, and the bottom is shaped on a tubaeform bottom, and the center is shaped on through hole.Through hole is the reverse frustoconic endoporus by top, and the bottom is tubaeform endoporus, and the centre is a drum inner bore, and the structure that is connected by the thread-shaped endoporus between drum inner bore and the tubaeform endoporus constitutes.The reverse frustoconic endoporus, straight shape endoporus, drum inner bore, thread-shaped endoporus are connected from top to down successively with tubaeform endoporus makes central through hole.The upper surface of upper flange is shaped at least one annular groove.The soffit of upper flange is shaped at least one annular groove.Bevel between the end face of upper flange and the side.
The utility model compared with prior art has following beneficial effect:
The top and bottom of this self-styled core are shaped on annular groove, when with after annular boss on well head big four upper flange and the self-styled platen of high pressure cooperates, upper flange in high pressure is self-styled behind the pressurized distortion evenly seal tightly, the seepage phenomenon can not appear.Make horn mouth bottom shape below, can well resist the high pressure of down-hole, can utilize down-hole high pressure that self-styled core tightly is enclosed within again and remove on the oil pipe, make oil pipe surface crude oil scraped clean.
Description of drawings:
Fig. 1 is the front view of the light self-styled core of general high pressure;
Fig. 2 is the vertical view of the light self-styled core of general high pressure;
Fig. 3 is the scheme of installation of the light self-styled core of general high pressure.
Among the figure: 1, core body, 2, upper flange, 3, the tubaeform bottom, 4, straight shape endoporus, 5, the truncated cone-shaped endoporus, 6, tubaeform endoporus, 7, drum inner bore, 8, the thread-shaped endoporus, 9, annular groove, 10, the self-styled platen of high pressure, 11, well head big four upper flange, 12, steel ring, 13, remove oil pipe.
The specific embodiment:
The light self-styled core of this general high pressure is contained between well head big four upper flange 11 and the self-styled platen 10 of high pressure when installing, and removes oil pipe 13 and passes in the straight shape endoporus 4 of self-styled core.Annular groove 9 above the upper flange 2 of the core body 1 of self-styled core is equipped with the convex annular groove on the self-styled platen 10 of high pressure, and following annular groove 9 is equipped with the annular groove on the well head big four upper flange 11 by steel ring 12.By the fixation of self-styled core upper flange bipassage ring connected in star 9 about in the of 2, make that the distortion when self-styled core compresses is evenly reliable between well head big four upper flange 11 and the self-styled platen 10 of high pressure, good seal performance.Make the tubaeform bottom 3 below the self-styled core core body 1, when down-hole high pressure crude oil is exerted pressure to it, when pressure crude oil enters tubaeform endoporus 6, the sealing that is subjected to thread-shaped endoporus 8 stops, some pressure is then exerted pressure to core body 1 along the external surface of the tubaeform bottom 3, the endoporus that makes self-styled core makes the sealing effectiveness of self-styled core better further to removing oil pipe 13 sealings, can also play the effect of automatic compensation by drum inner bore 7.Thread-shaped endoporus 8 can play the effect of well striking off to the crude oil that removes oil pipe 13 surface adhesion.
Claims (9)
1, the light self-styled core of a kind of general high pressure, it is made of core body (1), upper flange (2), the tubaeform bottom (3), and it is characterized in that: the top of core body (1) is shaped on upper flange (2), and the bottom is shaped on a tubaeform bottom (3), and the center is shaped on through hole.
2, the light self-styled core of general high pressure according to claim 1, it is characterized in that: described through hole top is shaped on reverse frustoconic endoporus (5).
3, the light self-styled core of general high pressure according to claim 1 is characterized in that: described through hole middle part is shaped on drum inner bore (7).
4, the light self-styled core of general high pressure according to claim 1, it is characterized in that: described through hole bottom is shaped on tubaeform endoporus (6).
5, the light self-styled core of general high pressure according to claim 1 is characterized in that: be connected by thread-shaped endoporus (8) between described drum inner bore (7) and the tubaeform endoporus (6).
6, the light self-styled core of general high pressure according to claim 1, it is characterized in that: described reverse frustoconic endoporus (5), straight shape endoporus (4), drum inner bore (7), thread-shaped endoporus (8) and tubaeform endoporus (6) connect and compose central through hole from top to down successively.
7, the light self-styled core of general high pressure according to claim 1, it is characterized in that: the upper surface of described upper flange (2) is shaped at least one annular groove (9).
8, the light self-styled core of general high pressure according to claim 1, it is characterized in that: the soffit of described upper flange is shaped at least one annular groove (9).
9, the light self-styled core of general high pressure according to claim 1 is characterized in that: bevel between the end face of described upper flange (2) and the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099785 CN200964817Y (en) | 2006-11-02 | 2006-11-02 | General high pressure portable self-sealing core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099785 CN200964817Y (en) | 2006-11-02 | 2006-11-02 | General high pressure portable self-sealing core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200964817Y true CN200964817Y (en) | 2007-10-24 |
Family
ID=38868831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099785 Expired - Lifetime CN200964817Y (en) | 2006-11-02 | 2006-11-02 | General high pressure portable self-sealing core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200964817Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982300A (en) * | 2021-09-09 | 2022-01-28 | 上海建为历保科技股份有限公司 | Epoxy resin repairing process for bucket arch |
-
2006
- 2006-11-02 CN CN 200620099785 patent/CN200964817Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982300A (en) * | 2021-09-09 | 2022-01-28 | 上海建为历保科技股份有限公司 | Epoxy resin repairing process for bucket arch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QIANJIANG CITY HENGNENGDA PETROLEUM EQUIPMENT CO., Free format text: FORMER NAME OR ADDRESS: QIANJIANG HENGNENGDA INDUSTRY AND TRADE CO.LTD.,HUBEI PROVINCE |
|
| CP03 | Change of name, title or address |
Address after: Jing Dong Lu in Hubei province Jingzhou city Jingzhou District No. 54 Jingzhou Yade patent office, zip code: 434020 Patentee after: Qianjiang Hengnengda Petroleum Equipment Co., Ltd. Address before: Jing Dong Lu in Hubei province Jingzhou city Jingzhou District No. 54 Jingzhou Yade patent office, zip code: 434020 Patentee before: Hubei Qianjiang Hengnengda Industrial & Trading Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071024 |
|
| EXPY | Termination of patent right or utility model |