CN211573472U - Packer for preventing packer rubber sleeve from being damaged - Google Patents
Packer for preventing packer rubber sleeve from being damaged Download PDFInfo
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- CN211573472U CN211573472U CN201922237297.4U CN201922237297U CN211573472U CN 211573472 U CN211573472 U CN 211573472U CN 201922237297 U CN201922237297 U CN 201922237297U CN 211573472 U CN211573472 U CN 211573472U
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- packer
- rigid body
- spacer ring
- fixed plate
- oil pipe
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Abstract
The utility model discloses a packer for preventing packer packing element from being damaged, which comprises an oil pipe, a packer rigid body, a spacer ring and a packer power part, wherein protection components are respectively arranged between the packer rigid body and the spacer ring above and between the packer power part and the spacer ring below, each protection component comprises a fixed seat and a fixed plate, two connecting rods are symmetrically hinged on the fixed seat, the tail ends of the connecting rods are provided with hinged seats, the middle part of the fixed plate is rotationally connected with an elastic telescopic rod, and the movable end of the elastic telescopic rod is rotationally connected with the hinged seats; a connecting rod bracket is also arranged between the hinged seat and the fixed plate. This prevent packer packing element damaged from setting up the protection subassembly between the spacer ring of lower extreme and packer rigid body and packer power unit on the packer packing element, utilize the elastic telescopic rod pressurized contraction among the protection subassembly to absorb the axial impact on the oil pipe, reduce the impact force to prevent packer packing element pressurized damage, barrier propterty is good, and the resilience is high.
Description
Technical Field
The utility model relates to a packer specifically is a prevent damaged packer of packer packing element.
Background
The packer is an oil field downhole sealing tool, plays a role in sealing the annular space between an oil pipe and a casing pipe, is an indispensable downhole tool in oil field operations such as oil extraction, fracturing, acidification, water injection and the like, and the conventional packer generally adopts a hydraulic drive mode to promote a power part to generate compression force to axially move and compress a rubber sleeve so as to radially expand the rubber sleeve to achieve the purpose of sealing the annular space of an oil sleeve, or adopts a mechanical motion mode to press the rubber sleeve to expand to achieve the purpose of sealing the oil sleeve.
After the rubber sleeve seals the oil sleeve annulus, high pressure caused by underground stratum or operations such as fracturing, acidizing and the like is born, and when the underground pressure exceeds the pressure bearing limit of rubber, the rubber sleeve is easy to damage, so that sealing failure is caused, and the underground operation fails.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent damaged packer of packer packing element to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a packer for preventing a packer rubber sleeve from being damaged comprises an oil pipe, wherein a sleeve is sleeved outside the oil pipe, a packer rigid body is sleeved at the lower end of the oil pipe, a packer rubber cylinder and a packer power part are sequentially arranged below the packer rigid body, the upper end and the lower end of the packer rubber cylinder are both connected with a spacer ring, protective components are arranged between the packer rigid body and the upper spacing ring as well as between the packer power part and the lower spacing ring, the protection component comprises a fixed seat and a fixed plate, the fixed seat is arranged on the inner wall of the sleeve, two connecting rods are symmetrically hinged on the fixed seat, the tail end of the connecting rod is provided with a hinged seat, the fixed plate is respectively and fixedly arranged on the spacing ring, the packer rigid body and the packer power component, the middle part of the fixed plate is rotatably connected with an elastic telescopic rod, and the movable end of the elastic telescopic rod is rotatably connected with the hinge seat; a connecting rod bracket is also arranged between the hinged seat and the fixed plate.
As a further aspect of the present invention: the sleeve is made of brass.
As a further aspect of the present invention: the spring in the elastic telescopic rod is made of CrSi spring steel.
As a further aspect of the present invention: the connecting rod support is in a diamond shape.
As a further aspect of the present invention: and a cushion pad is paved outside the spacer ring.
Compared with the prior art, the beneficial effects of the utility model are that:
this prevent packer packing element damaged from setting up the protection subassembly between the spacer ring of lower extreme and packer rigid body and packer power unit on the packer packing element, utilize the elastic telescopic rod pressurized contraction among the protection subassembly to absorb the axial impact on the oil pipe, reduce the impact force to prevent packer packing element pressurized damage, barrier propterty is good, and the resilience is high.
Drawings
FIG. 1 is a semi-sectional view of a packer to prevent damage to a packer rubber;
FIG. 2 is a schematic diagram of a protective assembly in a packer for preventing damage to a packer rubber.
In the figure: 1-oil pipe, 2-casing pipe, 3-packer rigid body, 4-spacer ring, 5-packer rubber cylinder, 6-packer power component, 7-protection component, 701-fixing seat, 702-fixing plate, 703-connecting rod bracket, 704-elastic telescopic rod, 705-hinging seat and 706-connecting rod.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
Referring to fig. 1, a packer for preventing a packer rubber sleeve from being damaged comprises an oil pipe 1, wherein a sleeve 2 is sleeved outside the oil pipe 1, a packer rigid body 3 is sleeved at the lower end of the oil pipe 1, a packer rubber sleeve 5 and a packer power part 6 are sequentially arranged below the packer rigid body 3, the upper end and the lower end of the packer rubber sleeve 5 are respectively connected with a spacer ring 4, and a protective assembly 7 is respectively arranged between the packer rigid body 3 and the spacer ring 4 above as well as between the packer power part 6 and the spacer ring 4 below;
referring to fig. 2, the protection assembly 7 includes a fixed base 701 and a fixed plate 702, the fixed base 701 is installed on the inner wall of the casing 2, two connecting rods 706 are symmetrically hinged on the fixed base 701, a hinged base 705 is arranged at the tail end of each connecting rod 706, the fixed plate 702 is respectively and fixedly installed on a spacer ring 4, a packer rigid body 3 and a packer power part 6, an elastic telescopic rod 704 is rotatably connected to the middle of the fixed plate 702, and the movable end of the elastic telescopic rod 704 is rotatably connected to the hinged base 705; a connecting rod bracket 703 is also arranged between the hinge seat 705 and the fixed plate 702;
specifically, when the packer rigid body 3 and the packer power unit 6 on the oil pipe 1 are axially extruded, the packer rigid body 3 and the packer power unit 6 approach to the spacer rings 4 at the upper end and the lower end of the packer rubber cylinder 5, so that the elastic expansion link 704 in the protection assembly 7 rotates and contracts, and the connecting rod bracket 703 deforms and compresses, thereby absorbing impact force and preventing the damage caused by directly extruding the packer rubber cylinder 5;
as the protection assembly 7 needs to absorb a large extrusion force, the elastic expansion link 704 is required to have a good resilience, in this embodiment, the spring in the elastic expansion link 704 is made of 55CrSi spring steel;
the sleeve 2 is made of brass and is resistant to high temperature;
the specific form of the link bracket 703 is not limited, and in this embodiment, it is preferable that the link bracket 703 has a diamond shape.
The working principle of the embodiment is as follows:
when the packer rigid body 3 and the packer power unit 6 on the oil pipe 1 are axially extruded, the packer rigid body 3 and the packer power unit 6 are close to the spacer rings 4 at the upper end and the lower end of the packer rubber cylinder 5, so that the elastic expansion rod 704 in the protection assembly 7 is rotated and contracted, and the connecting rod bracket 703 is deformed and compressed, thereby absorbing impact force and preventing the packer rubber cylinder 5 from being directly extruded to cause damage.
Example 2
In order to further relieve the axial impact, the embodiment is further improved on the basis of embodiment 1, and the improvement is as follows: and a cushion pad is laid outside the spacer ring 4 to further absorb impact force.
This prevent packer packing element damaged spacer ring 4 and packer rigid body 3 and packer power unit 6 of lower extreme on packer packing element 5 from setting up protection component 7, utilize the axial impact on the elastic expansion link 704 pressurized shrink absorption oil pipe 1 in protection component 7, reduce the impact force to prevent packer packing element 5 pressurized damage, protective properties is good, and the resilience is high.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. The packer capable of preventing the packer rubber from being damaged comprises an oil pipe (1), wherein a sleeve (2) is sleeved outside the oil pipe (1), a packer rigid body (3) is sleeved at the lower end of the oil pipe (1), a packer rubber cylinder (5) and a packer power part (6) are sequentially installed below the packer rigid body (3), a spacer ring (4) is connected to the upper end and the lower end of the packer rubber cylinder (5), the packer rubber cylinder is characterized in that a protection assembly (7) is arranged between the packer rigid body (3) and the spacer ring (4) above and between the packer power part (6) and the spacer ring (4) below, the protection assembly (7) comprises a fixed seat (701) and a fixed plate (702), the fixed seat (701) is installed on the inner wall of the sleeve (2), two connecting rods (706) are symmetrically hinged to the fixed seat (701), and a hinged seat (705) is arranged at the tail ends of, the fixed plate (702) is fixedly arranged on the spacer ring (4), the packer rigid body (3) and the packer power part (6) respectively, the middle part of the fixed plate (702) is rotatably connected with an elastic telescopic rod (704), and the movable end of the elastic telescopic rod (704) is rotatably connected with the hinge base (705); a connecting rod bracket (703) is also arranged between the hinged seat (705) and the fixed plate (702).
2. A packer to prevent packer rubber breakage according to claim 1, characterised in that the casing (2) is made of brass.
3. The packer for preventing the breakage of the packer rubber sleeve as recited in claim 2, wherein the spring in the elastic expansion link (704) is made of 55CrSi spring steel.
4. A packer to prevent packer rubber breakage according to claim 2, characterised in that the link rod bracket (703) is diamond shaped.
5. A packer for preventing the damage of a packer rubber sleeve according to any one of claims 1-4, characterized in that a cushion pad is laid outside the ring spacer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237297.4U CN211573472U (en) | 2019-12-13 | 2019-12-13 | Packer for preventing packer rubber sleeve from being damaged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237297.4U CN211573472U (en) | 2019-12-13 | 2019-12-13 | Packer for preventing packer rubber sleeve from being damaged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211573472U true CN211573472U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922237297.4U Active CN211573472U (en) | 2019-12-13 | 2019-12-13 | Packer for preventing packer rubber sleeve from being damaged |
Country Status (1)
| Country | Link |
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| CN (1) | CN211573472U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681998A (en) * | 2021-01-18 | 2021-04-20 | 西安科采能源装备有限公司 | Sulfur-proof acid-resistant high-temperature and high-pressure packer rubber sleeve and packer |
| CN113216893A (en) * | 2021-06-09 | 2021-08-06 | 陈佳欣 | Packer for preventing packer rubber sleeve from being damaged |
-
2019
- 2019-12-13 CN CN201922237297.4U patent/CN211573472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681998A (en) * | 2021-01-18 | 2021-04-20 | 西安科采能源装备有限公司 | Sulfur-proof acid-resistant high-temperature and high-pressure packer rubber sleeve and packer |
| CN113216893A (en) * | 2021-06-09 | 2021-08-06 | 陈佳欣 | Packer for preventing packer rubber sleeve from being damaged |
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