CN208473779U - Prevent from setting the packer setting structure of clamping stagnation - Google Patents
Prevent from setting the packer setting structure of clamping stagnation Download PDFInfo
- Publication number
- CN208473779U CN208473779U CN201820752750.8U CN201820752750U CN208473779U CN 208473779 U CN208473779 U CN 208473779U CN 201820752750 U CN201820752750 U CN 201820752750U CN 208473779 U CN208473779 U CN 208473779U
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- setting
- cylinder sleeve
- connector
- clamping stagnation
- pin
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Abstract
The utility model discloses a kind of packer setting structures for preventing from setting clamping stagnation, including central tube, the both ends of central tube are respectively arranged with the first connector and the second connector, diversion pipe is arranged in the middle part of central tube, the cartridge of compressible radial dilatation is arranged on diversion pipe, one end of cartridge towards the first connector is provided with the adjusting ring abutted with it, adjusts and is provided with the first cylinder sleeve between ring and the first connector；One end of first cylinder sleeve is threadedly coupled with ring is adjusted, by setting pin axial limiting between the other end of the first cylinder sleeve and the first connector；Setting pin includes head and bar portion, and the connecting portion of head and bar portion is provided with weakening slot.The pin that sets of the utility model includes head and bar portion, the connecting portion of head and bar portion is provided with weakening slot, when setting, sets piston and pushes the first cylinder sleeve under the effect of hydraulic-driven power, so that the first cylinder sleeve is easy the shearing at weakening slot and sets pin, the efficiency of cutting is improved.
Description
Technical field
The utility model relates to packer setting structures, in particular to a kind of packer setting knot for preventing from setting clamping stagnation
Structure.
Background technique
Packer is a kind of underground sealing tool, plays the role of sealing annular space between oil well oil conduit and casing, is
Oil field downhole tool indispensable in the operations such as oil recovery, pressure break, acidification, water filling, now more common packer is generally adopted
With the mode of hydraulic drive, lower contact and lower cylinder sleeve set piston by setting pin axial limiting, when setting in hydraulic-driven
Power acts on lower cylinder sleeve under pushing, and lower cylinder sleeve shearing sets pin, and after setting pin cutting, lower cylinder sleeve is setting piston thrust effect
Lower pushing adjusts ring compression seal packing element, makes the annular space between its radial dilatation sealing oil pipe and casing, realizes packer
Set.
However, setting pin when existing packer setting and being less likely to occur to be broken, and it is broken the disconnected of recoil offset nail
Easily with packer lower contact clamping stagnation occurs for face, is easy to cause cartridge that cannot compress in place, and downhole packing operation is caused to fail.
Summary of the invention
The purpose of this utility model seeks to provide the packer for preventing from setting clamping stagnation that a kind of structure is simple, practical
Set structure.
To achieve the above object, prevent from setting the packer setting structure of clamping stagnation designed by the utility model, including in
Heart pipe, the both ends of the central tube are respectively arranged with the first connector and the second connector being threadedly coupled with it, the central tube
Middle part is arranged with the diversion pipe being threadedly coupled with it, and the cartridge of compressible radial dilatation is arranged on the diversion pipe,
It is characterized in that
One end of the cartridge towards the first connector is provided with the adjusting ring abutted with it, the adjusting ring and first
The first cylinder sleeve is provided between connector；One end of first cylinder sleeve with adjust ring be threadedly coupled, first cylinder sleeve it is another
By setting pin axial limiting between end and the first connector；The pin that sets includes head and bar portion, the head and bar
The connecting portion in portion is provided with weakening slot, and first cylinder sleeve can be slid axially under external force to cut and set pin.
Further, one end of the cartridge towards the second connector is provided with the well-flushing piston abutted with it, described
The second cylinder sleeve is provided between well-flushing piston and the second connector；One end of second cylinder sleeve is slidably connected with well-flushing piston, institute
The other end for stating the second cylinder sleeve is connect with the second joint screw thread.
Further, it is provided in the cavity surrounded between the outer wall of the central tube and the inner wall of the first cylinder sleeve and sets work
Plug.
Further, spring is provided in the cavity surrounded between the outer wall of the central tube and the inner wall of the second cylinder sleeve.
Further, the pin that sets includes head and bar portion, and the connecting portion of the head and bar portion, which is provided with, to be cut
Weak slot.
Further, described to weaken the slot slot at an acute angle for cross section, and its sharp angle α=30 °~60 °.
Further, it is provided on first connector for installing the installing blind for setting pin, first cylinder sleeve
On be provided with for for setting the installation through-hole that pin passes through.
Still further, there is first cylinder sleeve one end inner cavity of installation through-hole to be provided with annular groove, the annular groove
Inner wall and the first connector outer wall between there are gaps.
Further, the quantity of the installing blind and installation through-hole is 2~8.
Compared with the prior art, the advantages of the utility model are:
First, the pin that sets of the utility model includes head and bar portion, the connecting portion of head and bar portion, which is provided with, to be cut
Weak slot when setting, sets piston and pushes the first cylinder sleeve under the effect of hydraulic-driven power, so that the first cylinder sleeve is easy weakening at slot
Shearing sets pin, improves the efficiency of cutting.
Second, there is first cylinder sleeve of the utility model one end inner cavity of installation through-hole to be provided with annular groove, annular groove
There are gaps between inner wall and the outer wall of the first connector, since the mating surface of the first connector and the first cylinder sleeve is setting pin installation
There is certain gap in position, and when packer setting, setting the section after pin is cut can not contact with lower contact, will not block
Stagnant phenomenon is avoided because setting failure caused by setting pin and the first connector clamping stagnation.
Third, the utility model has the advantages of simple structure, practical, staff is easy to operate when setting, and greatly shortens
Time of operation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of packer setting structure for preventing from setting clamping stagnation before setting；
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A；
Fig. 3 is to prevent from setting structural schematic diagram of the packer setting structure of clamping stagnation after setting shown in Fig. 1；
Fig. 4 is the enlarged structure schematic diagram in Fig. 3 at B；
Fig. 5 is the enlarged structure schematic diagram that pin is set in Fig. 1；
In figure, central tube 1, installing blind 2.1, the second connector 3, diversion pipe 4, cartridge 5, adjusts ring at first connector 2
6, the first cylinder sleeve 7, installation through-hole 7.1, annular groove 7.2, set pin 8, head 8.1, bar portion 8.2, to weaken slot 8.3, well-flushing living
The 9, second cylinder sleeve 10 of plug sets piston 11, spring 12.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The packer setting structure shown in figure for preventing from setting clamping stagnation, including central tube 1, the both ends difference of central tube 1
It is provided with the first connector 2 and the second connector 3 being threadedly coupled with it, the middle part of central tube 1 is arranged with leading of being threadedly coupled with it
Flow tube 4 is arranged with the cartridge 5 of compressible radial dilatation on diversion pipe 4, and one end of cartridge 5 towards the first connector 2 is set
It is equipped with the adjusting ring 6 abutted with it, adjusts and is provided with the first cylinder sleeve 7 between ring 6 and the first connector 2；One end of first cylinder sleeve 7 with
It adjusts ring 6 to be threadedly coupled, by setting 8 axial limiting of pin, the first cylinder between the other end of the first cylinder sleeve 7 and the first connector 2
Set 7 can be slid axially under external force to cut and set pin 8.Setting pin 8 includes head 8.1 and bar portion 8.2, head
8.1 and the connecting portion of bar portion 8.2 be provided with and weaken slot 8.3, weakening slot 8.3 is cross section slot at an acute angle, and its sharp angle α=
30 °~60 °.When setting, sets piston and push the first cylinder sleeve 7 under the effect of hydraulic-driven power, so that the first cylinder sleeve 7 is easy cutting
Shearing sets pin 8 at weak slot 8.3, improves the efficiency of cutting.
In above-mentioned technical proposal, one end of cartridge 5 towards the second connector 3 is provided with the well-flushing piston 9 abutted with it,
The second cylinder sleeve 10 is provided between well-flushing piston 9 and the second connector 3；One end of second cylinder sleeve 10 is slidably connected with well-flushing piston 9,
The other end of second cylinder sleeve 10 is threadedly coupled with the second connector 3.It is surrounded between the outer wall of central tube 1 and the inner wall of the first cylinder sleeve 7
Cavity in be provided with and set piston 11.Setting in the cavity surrounded between the outer wall of central tube 1 and the inner wall of the second cylinder sleeve 10
There is spring 12.
In above-mentioned technical proposal, it is provided on the first connector 2 for installing the installing blind 2.1 for setting pin 8, the first cylinder
The installation through-hole 7.1 for passing through for setting pin 8 is provided on set 7.First cylinder sleeve 7 has in one end of installation through-hole 7.1
Chamber is provided with annular groove 7.2, and there are gaps between the inner wall of annular groove 7.2 and the outer wall of the first connector 2.Installing blind 2.1 with
The quantity of installation through-hole 7.1 is 2~8.In this way, since the mating surface of the first connector 2 and the first cylinder sleeve 7 is setting pin 8
Installation position is equipped with certain gap, and when packer setting, setting the section after pin 8 is cut can not contact with lower contact, will not
Catching phenomenon occurs, avoids because setting failure caused by setting pin 8 and the first connector clamping stagnation.
The working process of the utility model is as follows: when setting, sets piston 11 and push the first cylinder under the effect of hydraulic-driven power
Set 7, the shearing of the first cylinder sleeve 7 set pin 8, and after setting the cutting of pin 8, the first cylinder sleeve 7 is in the case where setting 11 thrust of piston
It pushes and adjusts 6 compression seal packing element 5 of ring, make the annular space between its radial dilatation sealing oil pipe and casing, realize packer
Set.First connector 2 is to be slidably matched with the first cylinder sleeve 7, and mating surface is setting pin installation site and setting stroke model
There is certain gap in enclosing, when packer setting, setting the section after pin 8 is cut can not contact with the first connector 2, Bu Huifa
Raw catching phenomenon, avoids because setting failure caused by setting 2 clamping stagnation of pin 8 and the first connector.
The above is only the specific embodiments of the utility model, it is noted that anyone skilled in the art exists
In the revealed technical scope of the utility model, any changes or substitutions that can be easily thought of, should all cover the guarantor in the utility model
Within the scope of shield.
Claims (8)
1. a kind of packer setting structure for preventing from setting clamping stagnation, including central tube (1), the both ends difference of the central tube (1)
It is provided with the first connector (2) and the second connector (3) being threadedly coupled with it, is arranged with and its spiral shell in the middle part of the central tube (1)
The diversion pipe (4) of line connection, the cartridge (5) of compressible radial dilatation is arranged on the diversion pipe (4), feature exists
In:
One end of the cartridge (5) towards the first connector (2) is provided with the adjusting ring (6) abutted with it, the adjusting ring
(6) it is provided between the first connector (2) the first cylinder sleeve (7)；One end of first cylinder sleeve (7) and adjusting ring (6) screw thread connect
It connects, by setting pin (8) axial limiting between the other end and the first connector (2) of first cylinder sleeve (7)；It is described to set pin
Nail (8) includes head (8.1) and bar portion (8.2), and the connecting portion of the head (8.1) and bar portion (8.2) is provided with weakening slot
(8.3), first cylinder sleeve (7) can be slid axially under external force to cut and set pin (8).
2. the packer setting structure according to claim 1 for preventing from setting clamping stagnation, it is characterised in that: the cartridge
(5) one end of the second connector (3) is provided with the well-flushing piston (9) abutted with it, the well-flushing piston (9) and the second connector
(3) the second cylinder sleeve (10) are provided between；One end of second cylinder sleeve (10) is slidably connected with well-flushing piston (9), and described
The other end of two cylinder sleeves (10) is threadedly coupled with the second connector (3).
3. the packer setting structure according to claim 2 for preventing from setting clamping stagnation, it is characterised in that: the central tube
(1) it is provided in the cavity surrounded between the inner wall of outer wall and the first cylinder sleeve (7) and sets piston (11).
4. the packer setting structure according to claim 2 or 3 for preventing from setting clamping stagnation, it is characterised in that: the center
It manages in the cavity surrounded between the outer wall of (1) and the inner wall of the second cylinder sleeve (10) and is provided with spring (12).
5. the packer setting structure according to claim 1 or 2 or 3 for preventing from setting clamping stagnation, it is characterised in that: described to cut
Weak slot (8.3) slot at an acute angle for cross section, and its sharp angle α=30 °~60 °.
6. the packer setting structure according to claim 1 or 2 or 3 for preventing from setting clamping stagnation, it is characterised in that: described
It is provided on one connector (2) for installing the installing blind (2.1) for setting pin (8), is arranged on first cylinder sleeve (7) useful
In the installation through-hole (7.1) passed through for setting pin (8).
7. the packer setting structure according to claim 6 for preventing from setting clamping stagnation, it is characterised in that: first cylinder sleeve
(7) one end inner cavity with installation through-hole (7.1) is provided with annular groove (7.2), and the inner wall of the annular groove (7.2) connects with first
There are gaps between the outer wall of head (2).
8. the packer setting structure according to claim 7 for preventing from setting clamping stagnation, it is characterised in that: the installing blind
It (2.1) is 2~8 with the quantity of installation through-hole (7.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820752750.8U CN208473779U (en) | 2018-05-18 | 2018-05-18 | Prevent from setting the packer setting structure of clamping stagnation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820752750.8U CN208473779U (en) | 2018-05-18 | 2018-05-18 | Prevent from setting the packer setting structure of clamping stagnation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208473779U true CN208473779U (en) | 2019-02-05 |
Family
ID=65218130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820752750.8U Active CN208473779U (en) | 2018-05-18 | 2018-05-18 | Prevent from setting the packer setting structure of clamping stagnation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208473779U (en) |
-
2018
- 2018-05-18 CN CN201820752750.8U patent/CN208473779U/en active Active
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