CN204312018U - Packing element guard member and protection structure of rubber drum of packer - Google Patents
Packing element guard member and protection structure of rubber drum of packer Download PDFInfo
- Publication number
- CN204312018U CN204312018U CN201420636299.5U CN201420636299U CN204312018U CN 204312018 U CN204312018 U CN 204312018U CN 201420636299 U CN201420636299 U CN 201420636299U CN 204312018 U CN204312018 U CN 204312018U
- Authority
- CN
- China
- Prior art keywords
- packing element
- guard member
- wall surface
- outside wall
- element guard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 title claims abstract description 110
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 6
- 239000011737 fluorine Substances 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 13
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001012 protector Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model relates to packing element guard member and protection structure of rubber drum of packer, and protection structure of rubber drum of packer comprises packing element, packing element guard member, axially stop block and metal and protects umbrella.Axially stop block along the axis of packing element and packing element end abutment and be fixed on oil pipe, metal protects umbrella cover and is located in packing element guard member, and metal protects parachute kit to be had to be folded in and protect umbrella end between packing element guard member and axially stop block.Packing element guard member adopts fluorine-containing engineering resin injection mo(u)lding to be a taper sheath, softened in umbrella when taper sheath is set in the end of packing element.The utility model can increase the protection intensity to packing element, thus effectively improves the sealing performance of packer.
Description
Technical field
The utility model relates to oil recovery machiner field, particularly relates to packer, specifically, relates to a kind of packing element guard member and protection structure of rubber drum of packer.
Background technology
Packer is a kind of key tool that oil field well recovers the oil, and is widely used in the several work object needs such as oil field dispensing, separate zone stimulation, oil production by layer, mechanical pipe water blockoff.Packing element is as the chief component of packer, and its quality directly affects the normal result of use of packer, application life etc., plays conclusive effect in packer.When packing element bears High Pressure Difference in high temperature oil, packing element shoulder is easily outstanding to be increased, and even breaks, makes packing element seal failure, thus causes that the resistance to pressure reduction of packer is low, application life is short.For the withstand voltage properties of packing element, the many employings in current scene oil-gas mining packing element end are bowl-shape protects bowl protection, such protects bowl primarily of protecting bowl end plane and protecting a bowl main body composition, bowl-shapely protect the problem that bowl exists the following aspects: 1, protect bowl design too thick, protect bowl after packing element sealing not easily softened, do not have the protective effect to packing element; 2, protect bowl design too thin, protect a bowl intensity step-down, protect bowl and be easy to upset after packing element sealing, the protective value of packing element is deteriorated, thus causes protecting bowl does not have protection effect to packing element end, reduces the sealing performance of packer.
In order to solve the bowl-shape wrister defect that not easily wrister easily overturns after the sealing of softened or packing element, in prior art, on August 29th, 2007, the Chinese utility model patent ZL200620031888.6 of notice of authorization adopted a kind of packing element strutted in umbrella type to protect bowl, as depicted in figs. 1 and 2, packing element protects bowl by wrister end plane 1, wrister main body 2 forms, wrister entirety is umbrella-shaped structure, the outside longitudinal surface protecting bowl main body 2 is designed with symmetrical fine strip shape strengthen strangling 3, after packing element is compressed, wrister is that umbrella type is effectively strutted, protect fine strip shape outside bowl main body 2 to strengthen strangling 3 and can increase and protect the protection intensity of bowl to packing element, the shoulder of packing element is effectively prevented to dash forward and flowing, improve the sealing performance of packing element.But the packing element wrister of this kind of structure, because setting is strangled in its reinforcement, causes processing technology comparatively complicated, cost increases.
In order to solve the bowl-shape wrister defect that not easily wrister easily overturns after the sealing of softened or packing element, in prior art, January in 2007 notice of authorization on the 17th Chinese utility model patent CN2858935Y, by in the one or both sides of packing element 1 bonding resistant to elevated temperatures and and the plastics shoulder protector 2 (as shown in Figure 3) of packing element together sulfidization molding, plastics shoulder protector 2 is resistant to elevated temperatures plastics or rubber plastic blend macromolecular material, although the packing element of this kind of structure improves packing element and bears the ability of high pressure and the stability of sealing, but its moulding process is comparatively complicated, cost is also high.
One of prior art
1-wrister end plane
2-wrister main body
3-strengthen strangling
Prior art another
1-packing element
2-plastics shoulder protector
The utility model
100-taper sheath
10-cone body
11-internal face
12-outside wall surface
20-the first extension
21-the first extends internal face
22-the first extends outside wall surface
23-the first end face
24-fillet surface
30-the second extension
31-the second extends internal face
32-the second extends outside wall surface
33-the second end face
34-fillet surface
α-the first inclination angle
β-the second inclination angle
γ-the 3rd inclination angle
A-the first internal diameter
D-the first external diameter
The length of S-the first extension
The length of h-the second extension
The total length of H-taper sheath
200-packing element
300-metal protects umbrella
400-axially stop block
500-baffle ring
Utility model content
Technical problem to be solved in the utility model is; easily overturn for wrister after wrister bowl-shape in the prior art not easily sealing of softened or packing element; the fine strip shape in band outside is strengthened strangling difficult forming, and the defect of packing element sulfidization molding plastics shoulder protector complex process, provides a kind of packing element guard member.
In order to solve the problems of the technologies described above, packing element guard member of the present utility model adopts fluorine-containing engineering resin injection mo(u)lding to be a taper sheath, softened in umbrella when described taper sheath is set in the end of packing element.
Above-mentioned packing element guard member, wherein, described taper sheath comprises cone body, and described cone body has internal face and the outside wall surface relative with described internal face, the relative vertical curve of described internal face has one first inclination angle, and described internal face has a minimum diameter and a most imperial palace internal diameter; The relatively described vertical curve of described outside wall surface has one second inclination angle, and described second inclination angle is greater than described first inclination angle.
Above-mentioned packing element guard member, wherein, described taper sheath also comprises:
One first extension, extends from one end of described cone body, and described first extension has one first internal diameter, and described first internal diameter equals described minimum diameter; And
One second extension, extends from the other end of described cone body, and described second extension has one second internal diameter, and described second internal diameter is greater than described maximum inner diameter.
Above-mentioned packing element guard member, wherein, described first extension has one first and extends internal face and one first and extend outside wall surface, and described first extends internal face and described first is extended between outside wall surface and be connected by one first end face.
Above-mentioned packing element guard member, wherein, the relatively described vertical curve of described first extension internal face is parallel, and described first extends outside wall surface and described outside wall surface copline.
Above-mentioned packing element guard member, wherein, described second extension has one second and extends internal face and one second and extend outside wall surface, and described second extends internal face and described second is extended between outside wall surface and be connected by one second end face.
Above-mentioned packing element guard member, wherein, the relatively described vertical curve of described second extension outside wall surface is parallel, and described second extends the relatively described vertical curve of internal face has one the 3rd inclination angle, and described 3rd inclination angle is greater than described second inclination angle.
Above-mentioned packing element guard member, wherein, described first inclination angle is α, and described second inclination angle is β, and described 3rd inclination angle is γ, wherein, and 14 °≤α≤15 °, 15.5 °≤β≤16.5 °, 39.5 °≤γ≤40.5 °.
Above-mentioned packing element guard member, wherein, the total length of described taper sheath is H, wherein, 41.5mm≤H≤42.5mm.
Above-mentioned packing element guard member, wherein, described first internal diameter is A, wherein, 78.5mm≤A≤79.5mm.
Above-mentioned packing element guard member, wherein, described second extends outside wall surface has one first outer diameter D, wherein, 107.5mm≤D≤106.5mm.
The utility model provides a kind of protection structure of rubber drum of packer further.
Protection structure of rubber drum of packer of the present utility model, comprising:
Packing element, has the inwall be enclosed within oil pipe, and the end of described packing element has the external surface of taper;
Above-mentioned packing element guard member, is set in the end of described packing element;
Axially stop block, along the axis of described packing element and described packing element end abutment and be fixed on described oil pipe; And
Metal protects umbrella, is set in packing element guard member, and described metal protects parachute kit to be had to be folded in and protect umbrella end between described packing element guard member and described axially stop block.
Above-mentioned protection structure of rubber drum of packer, wherein, is provided with a baffle ring between described axially stop block and described packing element, described in protect umbrella end sleeve and be located on described baffle ring.
Beneficial functional of the present utility model is, packing element guard member of the present utility model not only can increase the protection intensity to packing element, effectively prevents the shoulder of packing element from dashing forward and flows to improve the sealing performance of packing element; Further, adopt injection mo(u)lding, its technique is also relatively simple, and cost is also lower.
Further, the sandwich design that the utility model protection structure of rubber drum of packer adopts soft or hard to combine, effectively can improve the sealing performance of packer, prevent packing element to be extruded when operation.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the packing element guard member of a prior art;
Fig. 2 is the sectional view of the A-A in Fig. 1;
Fig. 3 is the structural representation of the packing element guard member of another prior art;
Fig. 4 is the structural representation of packing element guard member of the present utility model;
Fig. 5 is I enlarged drawing in Fig. 4;
Fig. 6 is II enlarged drawing in Fig. 4;
Fig. 7 is the schematic diagram of protection structure of rubber drum of packer of the present utility model.
Wherein, Reference numeral
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model are described in detail, further to understand the purpose of this utility model, scheme and effect, but not as the restriction of the utility model claims protection domain.
Packing element guard member of the present utility model uses fluorine-containing engineering resin or adds the fluorine-containing engineering resin of inorganic filler, adopts the method for injection mo(u)lding to be shaped to a taper sheath.Specifically, the fluorine-containing engineering resin of taper sheath comprises vinylidene fluoride, tetrafluoroethene, hexafluoropropene, tetrafluoroethene base ether, the homopolymers of hexafluoropropene base ether or binary, terpolymer, and inorganic filler can be glass fiber or magnesium sulfate crystal whisker.Such material can improve the rigidity-toughness balanced performance of taper sheath, makes it can realize available protecting, can improve protection intensity to packing element and sealing performance again packing element end.
In conjunction with consulting Fig. 4, packing element guard member 100 (being alternatively taper sheath) of the present utility model comprises cone body 10, cone body 10 has internal face 11 and the outside wall surface 12 relative with internal face 11, the relative vertical curve of internal face 11 has one first inclination alpha, and internal face has a minimum diameter and a most imperial palace internal diameter; Outside wall surface 12 opposed vertical line has one second angle of inclination beta, and the second angle of inclination beta is greater than the first inclination alpha, and like this, cone body 10 is not single thickness, but its wall thickness is a variation tendency, thus is not easily reversed.In order to satisfied cooperation needs, taper sheath 100 also comprises the first extension 20 and the second extension 30.First extension 20 extends from one end of cone body 10, and the first extension 20 has one first internal diameter A, and this first internal diameter A equals described minimum diameter.Second extension 30 extends from the other end of cone body 10, and the second extension has one second internal diameter, and this second internal diameter is greater than maximum inner diameter.In conjunction with consulting Fig. 5, the first extension 20 is had one first and extends internal face 21 and one first and extend outside wall surface 22, first and extend internal face 21 and first and extend between outside wall surface 22 and be connected by one first end face 23.First extends internal face 21 opposed vertical line parallel, and first extends outside wall surface 22 and outside wall surface 12 copline, and certainly, first extends outside wall surface 22 can also be connected by a fillet surface 24 with between the first end face 23.
In conjunction with consulting Fig. 6, second extension 30 has one second and extends internal face 31 and one second extension outside wall surface 32, first extends internal face 32 and second is extended between outside wall surface 32 and is connected by one second end face 33, certainly, the second extension internal face 31 can also be connected by a fillet surface 34 with between internal face 11.Second extends outside wall surface 32 opposed vertical line parallel, and second extends internal face 31 opposed vertical line has one the 3rd tilt angle gamma, and the 3rd tilt angle gamma is greater than the second angle of inclination beta.
Preferably, 14 °≤α≤15 °, 15.5 °≤β≤16.5 °, 39.5 °≤γ≤40.5 °, packing element guard member 100 is not only not easily reversed, and cooperation needs can be met well.
In the utility model one specific embodiment, the total length of taper sheath is H, wherein, and 41.5mm≤H≤42.5mm, 78.5mm≤A≤79.5mm, and the second extension outside wall surface has one first outer diameter D, 107.5mm≤D≤106.5mm.More, the length of the first extension is S, wherein, and 3.9mm≤S≤4.1mm.The length of the second extension is h, wherein, and 3.9mm≤h≤4.1mm.
In conjunction with consulting Fig. 7, protection structure of rubber drum of packer of the present utility model, comprises packing element guard member 100, packing element 200, metal protects umbrella 300 and axially stop block 400.Packing element 200 has the inwall be enclosed within oil pipe, and the end of packing element 200 has the external surface of taper.Packing element guard member 100 is set in the end of packing element 200.Axially stop block 400 along the axis of packing element 200 and packing element 200 end abutment and be fixed on oil pipe.Metal protects umbrella 300 and is set in packing element guard member 100, and metal protects umbrella 300 to be had to be folded in and protect umbrella end between packing element guard member 100 and axially stop block 400.Also be provided with a baffle ring 500 between axially stop block 400 and packing element 200, protect umbrella end sleeve and be located on baffle ring 500.Preferably, axially stop block 400 entirety is taper.By such setting, make protection structure of rubber drum of packer be the sandwich design that soft or hard combines, effectively can improve the sealing performance of packer, prevent packing element to be extruded when operation.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the utility model.
Claims (13)
1. a packing element guard member, is characterized in that, described packing element guard member adopts fluorine-containing engineering resin injection mo(u)lding to be a taper sheath, softened in umbrella when described taper sheath is set in the end of packing element.
2. packing element guard member according to claim 1, it is characterized in that, described taper sheath comprises cone body, described cone body has internal face and the outside wall surface relative with described internal face, the relative vertical curve of described internal face has one first inclination angle, and described internal face has a minimum diameter and a most imperial palace internal diameter; The relatively described vertical curve of described outside wall surface has one second inclination angle, and described second inclination angle is greater than described first inclination angle.
3. packing element guard member according to claim 2, is characterized in that, described taper sheath also comprises:
One first extension, extends from one end of described cone body, and described first extension has one first internal diameter, and described first internal diameter equals described minimum diameter; And
One second extension, extends from the other end of described cone body, and described second extension has one second internal diameter, and described second internal diameter is greater than described maximum inner diameter.
4. packing element guard member according to claim 3; it is characterized in that; described first extension has one first and extends internal face and one first and extend outside wall surface, and described first extends internal face and described first is extended between outside wall surface and be connected by one first end face.
5. packing element guard member according to claim 4, is characterized in that, the relatively described vertical curve of described first extension internal face is parallel, and described first extends outside wall surface and described outside wall surface copline.
6. packing element guard member according to claim 3; it is characterized in that; described second extension has one second and extends internal face and one second and extend outside wall surface, and described second extends internal face and described second is extended between outside wall surface and be connected by one second end face.
7. packing element guard member according to claim 6; it is characterized in that; the relatively described vertical curve of described second extension outside wall surface is parallel, and described second extends the relatively described vertical curve of internal face has one the 3rd inclination angle, and described 3rd inclination angle is greater than described second inclination angle.
8. packing element guard member according to claim 7, is characterized in that, described first inclination angle is α, and described second inclination angle is β, and described 3rd inclination angle is γ, wherein, 14 °≤α≤15 °, 15.5 °≤β≤16.5 °, 39.5 °≤γ≤40.5 °.
9. packing element guard member according to claim 3, is characterized in that, the total length of described taper sheath is H, wherein, and 41.5mm≤H≤42.5mm.
10. packing element guard member according to claim 3, is characterized in that, described first internal diameter is A, wherein, and 78.5mm≤A≤79.5mm.
11. packing element guard members according to claim 6, is characterized in that, described second extends outside wall surface has one first outer diameter D, wherein, and 107.5mm≤D≤106.5mm.
12. 1 kinds of protection structure of rubber drum of packers, is characterized in that, comprising:
Packing element, has the inwall be enclosed within oil pipe, and the end of described packing element has the external surface of taper;
Packing element guard member in claim 1-11 described in any one, is set in the end of described packing element;
Axially stop block, along the axis of described packing element and described packing element end abutment and be fixed on described oil pipe; And
Metal protects umbrella, is set in packing element guard member, and described metal protects parachute kit to be had to be folded in and protect umbrella end between described packing element guard member and described axially stop block.
13. protection structure of rubber drum of packers according to claim 12, is characterized in that, are provided with a baffle ring between described axially stop block and described packing element, described in protect umbrella end sleeve and be located on described baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636299.5U CN204312018U (en) | 2014-10-29 | 2014-10-29 | Packing element guard member and protection structure of rubber drum of packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636299.5U CN204312018U (en) | 2014-10-29 | 2014-10-29 | Packing element guard member and protection structure of rubber drum of packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312018U true CN204312018U (en) | 2015-05-06 |
Family
ID=53134340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636299.5U Expired - Fee Related CN204312018U (en) | 2014-10-29 | 2014-10-29 | Packing element guard member and protection structure of rubber drum of packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312018U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481306A (en) * | 2016-07-06 | 2017-03-08 | 天鼎联创密封技术（北京）有限公司 | Lower end sealing ring medial surface does not coat packing element, packer and the bridging plug of copper sheet |
| CN106522873A (en) * | 2016-12-28 | 2017-03-22 | 隆学武 | Rubber sleeve with disk spring, packer and bridge plug |
| CN106639966A (en) * | 2016-11-28 | 2017-05-10 | 隆学武 | Shoulder protruding resistant rubber cylinder, packer and bridge plug |
| CN111894511A (en) * | 2020-09-14 | 2020-11-06 | 西南石油大学 | Drilling downhole blowout prevention simulation device |
-
2014
- 2014-10-29 CN CN201420636299.5U patent/CN204312018U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481306A (en) * | 2016-07-06 | 2017-03-08 | 天鼎联创密封技术（北京）有限公司 | Lower end sealing ring medial surface does not coat packing element, packer and the bridging plug of copper sheet |
| CN106639966A (en) * | 2016-11-28 | 2017-05-10 | 隆学武 | Shoulder protruding resistant rubber cylinder, packer and bridge plug |
| CN106522873A (en) * | 2016-12-28 | 2017-03-22 | 隆学武 | Rubber sleeve with disk spring, packer and bridge plug |
| CN111894511A (en) * | 2020-09-14 | 2020-11-06 | 西南石油大学 | Drilling downhole blowout prevention simulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |