CN209195342U - A kind of expanding packing element and packer - Google Patents
A kind of expanding packing element and packer Download PDFInfo
- Publication number
- CN209195342U CN209195342U CN201821692066.1U CN201821692066U CN209195342U CN 209195342 U CN209195342 U CN 209195342U CN 201821692066 U CN201821692066 U CN 201821692066U CN 209195342 U CN209195342 U CN 209195342U
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- packing element
- section
- framework layer
- expanding
- steel belt
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Abstract
The utility model relates to a kind of expanding packing element and packers.Expanding packing element includes cylinder-shaped steel belt framework layer, the upper and lower connector that steel belt framework layer both ends are arranged in and the interior packing element being arranged on the inside of steel belt framework layer, and expanding packing element further includes at least two sections of outer packing element sections being arranged at intervals on steel belt framework layer outer surface along the vertical direction.Packing element section outside at least both ends is provided on the outer surface of the steel belt framework layer of the expanding packing element of the utility model, one section of outer packing element section is arranged in expanding packing element outer surface in compared with the prior art, two sections of outer packing element sections are not susceptible to accumulate, the occurrence probability for reducing steel band accumulation, increases expanding packing element safety in utilization.
Description
Technical field
The utility model relates to a kind of expanding packing element and packers.
Background technique
Horizontal well technology starts from the 1980s, be a comprehensive matching technology, is mainly used for mentioning in oil field development
High oil and gas production and the rate of oil and gas recovery.With the development of industrial technology with people to recognize continuous of horizontal well development technology plus
Deep, in widespread attention with horizontal well development oil field, horizontal wells technology is rapidly developed and is become better and approaching perfection day by day at present, horizontal well number
Amount increases at an amazing speed, and horizontal well has been used for the exploitation of heavy crude reservoir by scene.Exploitation for thick oil horizontal well, note
Steam thermal process is still a kind of effective main process.
Horizontal well thickened oil recovery at present uses general steam injection mode, and since horizontal well well section is too long, steam injection is uneven.To solve
The above problem now mostly uses greatly packer to be segmented horizontal well, and uses horizontal well in segments steam injection method, realizes horizontal
Well uniformly inhales vapour, to improve the development degree of thick oil horizontal well, wherein the packing element on packer for setting is realization level
The important component of well segmentation.Common packing element can be divided into expanding packing element and compression type glue barrel according to usage mode.
Expanding packing element in the prior art, the Chinese utility model patent if Authorization Notice No. is CN205669388U are public
A kind of Inflatable type packer rubber sleeve based on high resiliency stainless steel band casing play opened, the packing element include columnar stainless steel band
Casing play, the packing element head for being welded on stainless steel band casing play both ends, the outer packing element section of stainless steel belt casing play outer surface, filling
Interior packing element inside stainless steel insert layer and the hold-down mechanism that interior packing element both ends are set.The packing element has tensile strength
The advantages that high, flexibility is by force, deformation is uniform, corrosion-resistant；But the outer packing element section of the packing element is monolithic construction and outer packing element section
Length is longer, and outer packing element section is easy to happen accumulation when use, and then steel band accumulation is caused to damage, and need to carry out heavy repair task and be tieed up
It repairs.
Utility model content
The purpose of this utility model is to provide a kind of expanding packing elements, it is intended to solve expanding packing element in the prior art
Outer packing element section easily occur accumulation damage the problem of；The purpose of this utility model, which also resides in, provides one kind with above-mentioned expanding glue
The packer of cylinder, it is intended to solve the problems, such as that existing packer leads to high failure rate because expanding packing element is easy to damage.
To achieve the above object, the technical solution of the expanding packing element of the utility model is:
Expanding packing element includes cylinder-shaped steel belt framework layer, the upper and lower connector that steel belt framework layer both ends are arranged in and sets
The interior packing element on the inside of steel belt framework layer is set, expanding packing element further includes being arranged at intervals on steel belt framework layer appearance along the vertical direction
At least two sections of outer packing element sections on face.
The beneficial effect is that: at least two are provided on the outer surface of the steel belt framework layer of the expanding packing element of the utility model
Hold outer packing element section, compared with the prior art in one section of outer packing element section of expanding packing element outer surface setting, two sections of outer packing element sections are not
It easily accumulates, reduces the occurrence probability of steel band accumulation, increase expanding packing element safety in utilization.
Further, the upper and lower ends of every section of outer packing element section all have the conical surface extended on the inside of outside packing element section.Facilitate
Make stress concentration and the middle position of outer packing element section.
Further, the equal length of the steel band section separated by each section of outer packing element section in the up-down direction.Enhance expansion
Open the overall structural strength of formula packing element.
Further, the outer packing element section has two sections, and the length of the outer packing element section of upper section is greater than the length of the outer packing element section of lower section.
Enhance expanding packing element plugging effect.
Further, the junction of the steel belt framework layer and upper and lower connector is equipped with the guard ring of protection steel band, the guard ring
It is interior to be equipped with wire.Enhance the protection at steel belt framework layer both ends.
The technical solution of the packer of the utility model is:
Packer includes central tube, and the outer sheath of the central tube is equipped with expanding packing element, the expanding packing element, including
Cylinder-shaped steel belt framework layer, the upper and lower connector that steel belt framework layer both ends are set and in being arranged on the inside of steel belt framework layer
Packing element, expanding packing element further include at least two sections of outer packing elements being arranged at intervals on steel belt framework layer outer surface along the vertical direction
Section.
The beneficial effect is that: it is arranged on the outer surface of the steel belt framework layer of the expanding packing element in the utility model packer
Have packing element section outside at least both ends, compared with the prior art in expanding packing element outer surface be arranged one section of outer packing element section, two sections outside
Packing element section is not susceptible to accumulate, and reduces the occurrence probability of steel band accumulation, increases expanding packing element safety in utilization, and then drop
The probability that low packer breaks down.
Further, the upper and lower ends of every section of outer packing element section all have the conical surface extended on the inside of outside packing element section.Facilitate
Make stress concentration and the middle position of outer packing element section.
Further, the equal length of the steel band section separated by each section of outer packing element section in the up-down direction.Enhance expansion
Open the overall structural strength of formula packing element.
Further, the outer packing element section has two sections, and the length of the outer packing element section of upper section is greater than the length of the outer packing element section of lower section.
Enhance expanding packing element plugging effect.
Further, the junction of the steel belt framework layer and upper and lower connector is equipped with the guard ring of protection steel band, the guard ring
It is interior to be equipped with wire.Enhance the protection at steel belt framework layer both ends.
Detailed description of the invention
Fig. 1 is the partial sectional view of the expanding packing element of the utility model；
Fig. 2 is the enlarged drawing at the A in Fig. 1；
Fig. 3 is the structural schematic diagram of the packer of the utility model；
In figure: 1- top connection；2- lower contact；Packing element in 3-；4- steel belt framework layer；The upper outer packing element section of 5-；Outer packing element under 6-
Section；7- guard ring；8- wire.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment of the expanding packing element of the utility model, definition expanding packing element length direction are up and down direction
(i.e. up and down direction in Fig. 1), as shown in Figure 1, expanding packing element includes cylinder-shaped steel belt framework layer 4, setting cylinder-shaped rigid
Top connection 1 and lower contact 2 with casing play both ends and the interior packing element being filled in after sulfuration process forms in steel belt framework layer 4
3.Steel belt framework layer 4 is to be accumulated by the stainless steel band of strip by uniform magnitude of misalignment circumference, the cross section of stainless steel band
It is arc-shaped.There are two spaced upper outer packing element section 5 Hes affixed through sulfuration process for tool on the outer surface of steel belt framework layer 4
Lower outer packing element section 6.
The upper length of outer packing element section 5 in the up-down direction is greater than the length of lower outer packing element section 6 in the up-down direction, sets in this way
Meter is the plugging effect in order to enhance expanding packing element as far as possible under the premise of guaranteeing that expanding packing element is not accumulated.On
The both ends of the up and down direction of outer packing element section 5 and lower outer packing element section 6 all have the conical surface extended on the inside of outside packing element section, design in this way
Help to concentrate outer packing element section stress, thus the plugging effect of enhancing and well inner sleeve tube wall.Expanding glue in the present embodiment
The steel belt framework layer 4 of cylinder is separated into three sections by upper outer packing element section 5 and lower outer packing element section 6, in order to enhance structure when packing element spreading
Intensity, the equal length of the three sections of steel band sections separated by upper outer packing element section 5 and lower outer packing element section 6 in the up-down direction.
Referring to Fig. 2, the steel belt framework layer 4 of expanding packing element and top connection 1,2 junction of lower contact are provided with guard ring 7,
Guard ring 7 is equipped with one section and extends along direction gradually thinning trend surface structure, in the process that expanding packing element is expanded and shunk
In, the stress at 4 both ends of steel belt framework layer can be made to be decomposed along trend surface, preferably achieve the effect that force dispersion, weaken steel
The stress collected state of band.In addition, steel belt framework layer 4 and top connection 1,2 junction of lower contact are equipped with guard ring 7, it can be to steel band
The both ends of casing play 4 can play the role of being effectively protected, and avoid 4 fatigue fracture of steel belt framework layer, effectively extend steel band
Service life.
Wire 8 is additionally provided with inside guard ring 7, wire 8 increases the toughness of guard ring 7, further enhances to steel band
Protective effect.Equally can also be used herein it is interior set other toughness materials to carry out the protection to steel band, avoid steel band fatigue fracture
Puncture interior packing element 3.
The upper end of top connection 1 in the present embodiment and the lower end of lower contact 2 all have internal thread segment in order to exterior tube
Column connection.
In other embodiments, outer packing element section can also be any sections such as three sections, four sections, five sections.
In other embodiments, the length of the steel band section separated by each section of outer packing element section can also be unequal.
In other embodiments, steel belt framework layer and upper and lower joint can also be not provided with guard ring.
In other embodiments, the upper and lower ends of each section of outer packing element section can also be not provided with the conical surface.
The specific embodiment of the packer of the utility model, as shown in figure 3, including central tube and being set on central tube
Expanding packing element, the expanding packing element in the present embodiment is identical as the structure of expanding packing element in the various embodiments described above, no
It repeats again.
Claims (10)
1. expanding packing element, including cylinder-shaped steel belt framework layer, upper and lower connector and the setting at steel belt framework layer both ends are set
Interior packing element on the inside of steel belt framework layer, it is characterised in that: expanding packing element further includes being arranged at intervals on steel band along the vertical direction
At least two sections of outer packing element sections on casing play outer surface.
2. expanding packing element according to claim 1, it is characterised in that: the upper and lower ends of every section of outer packing element section all have to
The conical surface extended on the inside of outer packing element section.
3. expanding packing element according to claim 1 or 2, it is characterised in that: the steel band separated by each section of outer packing element section
The equal length of section in the up-down direction.
4. expanding packing element according to claim 1 or 2, it is characterised in that: the outer packing element section has two sections, the outer glue of upper section
The length of cylinder section is greater than the length of the outer packing element section of lower section.
5. expanding packing element according to claim 1 or 2, it is characterised in that: the steel belt framework layer and upper and lower connector
Junction is equipped with the guard ring of protection steel band, is equipped with wire in the guard ring.
6. packer, including central tube, the outer sheath of the central tube is equipped with expanding packing element, the expanding packing element, including
Cylinder-shaped steel belt framework layer, the upper and lower connector that steel belt framework layer both ends are set and in being arranged on the inside of steel belt framework layer
Packing element, it is characterised in that: expanding packing element further includes being arranged at intervals on steel belt framework layer outer surface along the vertical direction at least
Two sections of outer packing element sections.
7. packer according to claim 6, it is characterised in that: the upper and lower ends of every section of outer packing element section all have outside glue
The conical surface extended on the inside of cylinder section.
8. packer according to claim 6 or 7, it is characterised in that: existed by the steel band section that each section of outer packing element section separates
Equal length in up and down direction.
9. packer according to claim 6 or 7, it is characterised in that: the outer packing element section has two sections, the outer packing element section of upper section
Length be greater than the length of the outer packing element section of lower section.
10. packer according to claim 6 or 7, it is characterised in that: the company of the steel belt framework layer and upper and lower connector
The guard ring that place is equipped with protection steel band is connect, is equipped with wire in the guard ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821692066.1U CN209195342U (en) | 2018-10-18 | 2018-10-18 | A kind of expanding packing element and packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821692066.1U CN209195342U (en) | 2018-10-18 | 2018-10-18 | A kind of expanding packing element and packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195342U true CN209195342U (en) | 2019-08-02 |
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ID=67408298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821692066.1U Active CN209195342U (en) | 2018-10-18 | 2018-10-18 | A kind of expanding packing element and packer |
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| CN (1) | CN209195342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593830A (en) * | 2019-09-05 | 2019-12-20 | 威海丰泰新材料科技股份有限公司 | Separate-layer water injection device for water injection well of oil field |
-
2018
- 2018-10-18 CN CN201821692066.1U patent/CN209195342U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593830A (en) * | 2019-09-05 | 2019-12-20 | 威海丰泰新材料科技股份有限公司 | Separate-layer water injection device for water injection well of oil field |
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