CN206647077U - A kind of self-service pressurized expansion packer - Google Patents
A kind of self-service pressurized expansion packer Download PDFInfo
- Publication number
- CN206647077U CN206647077U CN201720295876.2U CN201720295876U CN206647077U CN 206647077 U CN206647077 U CN 206647077U CN 201720295876 U CN201720295876 U CN 201720295876U CN 206647077 U CN206647077 U CN 206647077U
- Authority
- CN
- China
- Prior art keywords
- ram pot
- packing element
- piston
- connector
- piston rod
- 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
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Abstract
The utility model provides a kind of self-service pressurized expansion packer, including top connection, central tube, ram pot, piston rod, piston, connector, packing element and lower contact；The lower end of ram pot is connected by the upper end of connector and packing element, offers fluid passage on connector, ram pot is connected with packing element by fluid passage；Top connection, ram pot, connector, packing element and lower contact are coaxially disposed and are sequentially sleeved at from top to bottom outside central tube, and the external diameter of piston and the internal diameter of ram pot match, and piston and piston rod are set on the inwall of ram pot；It is described in the utility model that packing element expansion can be made smoothly to set, rotary drill column is not needed, high pressure line and high-pressure pump are not needed, it is only necessary to which the drill string of enough weight is added to the top of piston rod, and the packing that can be carried out using the different glue bucket of diameter and hydraulic cylinder to different-diameter pit shaft.
Description
Technical field
It the utility model is related to Oil/gas Well packer field, more particularly to a kind of self-service pressurized expansion packer.
Background technology
Inflatable packer is that the one kind commonly used in current oil natural gas well testing keeps apart test layer and non-test layer
The instrument come.Usually using when method be：1st, using the process of the upper and lower handling of drill string, well liquid pressure is made by specific valve
Enter in expansion glue tube, packing element is swollen, block annular distance；2nd, make the rotary motion of fixing speed using drill string, drive gear pump
Well liquid is injected in expansion glue tube, it is swollen, blocks annular distance；3rd, also have using high-pressure pump on well in the recent period, by high pressure line
It is connected with packer, liquid is pressed into expansion packing element by high pressure line using terrestrial operation reaches the purpose set.
The existing technology of the above can effectively play packing effect, but have premise：Drill string moves up and down or rotation
Transhipment is dynamic, is required for thus needing packer and assembling in the state of the pressue device remains stationary on packer top
Selective zone anchor using routine can be implemented to fix pressue device, waste time and energy.Pressurizeed using high-pressure pump by high pressure line
There is also problem for pressuring method：The external diameter of high pressure line is generally 6mm, and inner diameter values have 3mm, when being pressurizeed using high pressure line, warp
Often occur that high-pressure pump pressurization is very high, but by high pressure line inject glue bucket liquid measure it is seldom the problem of, also, high pressure line exists
Need to be fixed on drill string during tripping in bottom, during high pressure line tripping in open hole well, if the borehole wall of open hole well is irregular or rough,
Being also easy to, which causes high pressure line to be gone into the well, is hampered, or even fracture of scratching, and then causes to set failure.
Utility model content
The purpose of this utility model is to provide a kind of self-service pressurized expansion packer, it is therefore intended that existing packer is made
The problem of pressue device causes to waste time and energy because that need to fix in addition, also solve and utilize ground high-pressure pump and high pressure line
Existing injection liquid measure is few, high pressure line is gone into the well the problem of being hampered with high pressure line easy fracture during pressurization.
To achieve these goals, the utility model uses following technical scheme：
A kind of self-service pressurized expansion packer, including top connection, central tube, ram pot, piston rod, piston, connector, glue
Cylinder and lower contact；The lower end of ram pot is connected by the upper end of connector and packing element, and fluid passage, hydraulic pressure are offered on connector
Cylinder is connected with packing element by fluid passage；Top connection, ram pot, connector, packing element and lower contact are coaxially disposed and from top to bottom
It is sequentially sleeved at outside central tube, the external diameter of piston and the internal diameter of ram pot match, and piston and piston rod are set in ram pot
On inwall, the top of ram pot offers rod aperture, and the upper end of piston rod connects through the lower end of rod aperture and top connection.
Balanced valve is additionally provided with described packing element.
The beneficial effects of the utility model：
Compared with traditional packer, a kind of self-service pressurized expansion packer described in the utility model can make packer
Packing element expands and smoothly set, and solves inconvenience when pit shaft is insulated using conventional packer, it is not necessary to rotary drill column, it is not necessary to
High pressure line and high-pressure pump, it is only necessary to the drill string of enough weight is added to the top of piston rod, and it is different using diameter
The packing that glue bucket and hydraulic cylinder can be carried out to different-diameter pit shaft；When well depth is shallower, drill string weight deficiency when, can also use well on
The strength that supercharging equipment supplement piston pushes, to meet to set the needs of weight.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
As shown in Figure 1：A kind of self-service pressurized expansion packer described in the utility model, including top connection 1, central tube 9,
Ram pot 4, piston rod 2, piston 3, connector 5, packing element 6 and lower contact 8；Top connection 1 is set with lower contact 8 for connecting other
It is standby；The lower end of ram pot 4 is connected by connector 5 with the upper end of packing element 6, and fluid passage 7, ram pot 4 are offered on connector 5
Connected with packing element 6 by fluid passage 7；Top connection 1, ram pot 4, connector 5, packing element 6 and lower contact 8 are coaxially disposed and by upper
It is sequentially sleeved under outside central tube 9, preferred scheme is：Top connection 1, ram pot 4, connector 5, packing element 6 and lower contact 8 it is interior
The outer wall of wall and central tube 9 is interference fitted；The internal diameter of the external diameter of piston 3 and ram pot 4 matches, the upper end of piston rod 2 with it is upper
The center of the lower end connection of joint 1, piston 3 and piston rod 2 offers through hole, and piston 3 and piston rod 2 are set in ram pot 4
Inwall on, preferred scheme is：The inwall of piston 3 and piston rod 2 with ram pot 4 is interference fitted；The upper end of ram pot 4 opens up
There is the hole of piston rod 2, the upper end of piston rod 2 is connected through the hole of piston rod 2 with the lower end of top connection 1.
Preferred scheme is：A kind of glue bucket lower end of self-service pressurized expansion packer described in the utility model is additionally provided with flat
Weigh valve, and balanced valve is used to balance the pressure difference inside and outside packing element 6.
A kind of action process of self-service pressurized expansion packer described in the utility model is：When the drill string of enough weight adds
When being pressed onto 2 upper end of piston rod, the stress of piston 3 is moved down along ram pot 4, and the liquid in ram pot 4 is pressed into by hydraulic channel
Packing element 6, packing element 6 receive the extruding of press-in liquid and expanded, Oil/gas Well is set；When lifting drill string, it is subject to due to piston rod 2
Distress resolves, the automatic retracted of packing element 6, the liquid that will be pressed into packing element 6 push back ram pot 4 by fluid passage 7, until packing element 6
Restore to the original state, Oil/gas Well deblocking.
Compared with traditional packer, a kind of self-service pressurized expansion packer described in the utility model can make packer
Packing element 6 expands and smoothly set, and solves inconvenience when pit shaft is insulated using conventional packer, it is not necessary to rotary drill column, be not required to
Want high pressure line and high-pressure pump, it is only necessary to the drill string of enough weight is added to the top of piston rod 2, and it is different using diameter
Glue bucket and hydraulic cylinder can to different-diameter pit shaft carry out packing；When well depth is shallower, drill string weight deficiency when, can also use well
The strength that upper supercharging equipment supplement living 4 pushes, to meet to set the needs of weight.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (2)
- A kind of 1. self-service pressurized expansion packer, it is characterised in that：Including top connection, central tube, ram pot, piston rod, piston, Connector, packing element and lower contact；The lower end of ram pot is connected by the upper end of connector and packing element, and liquid is offered on connector Passage, ram pot are connected with packing element by fluid passage；Top connection, ram pot, connector, packing element and lower contact be coaxially disposed and It is sequentially sleeved at from top to bottom outside central tube, the external diameter of piston and the internal diameter of ram pot match, and piston and piston rod are set in On the inwall of ram pot, the top of ram pot offers rod aperture, and the upper end of piston rod is through rod aperture and top connection Lower end connects.
- A kind of 2. self-service pressurized expansion packer according to claim 1, it is characterised in that：Also set up on described packing element There is balanced valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720295876.2U CN206647077U (en) | 2017-03-24 | 2017-03-24 | A kind of self-service pressurized expansion packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720295876.2U CN206647077U (en) | 2017-03-24 | 2017-03-24 | A kind of self-service pressurized expansion packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647077U true CN206647077U (en) | 2017-11-17 |
Family
ID=60280118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720295876.2U Expired - Fee Related CN206647077U (en) | 2017-03-24 | 2017-03-24 | A kind of self-service pressurized expansion packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206647077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837236A (en) * | 2017-03-24 | 2017-06-13 | 河南省煤炭地质勘察研究总院 | A kind of self-service pressurized expansion packer |
| CN114427372A (en) * | 2020-09-09 | 2022-05-03 | 中国石油化工股份有限公司 | Automatic annular sealing device |
-
2017
- 2017-03-24 CN CN201720295876.2U patent/CN206647077U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837236A (en) * | 2017-03-24 | 2017-06-13 | 河南省煤炭地质勘察研究总院 | A kind of self-service pressurized expansion packer |
| CN106837236B (en) * | 2017-03-24 | 2023-09-05 | 河南省煤炭地质勘察研究总院 | Self-help pressurizing expansion packer |
| CN114427372A (en) * | 2020-09-09 | 2022-05-03 | 中国石油化工股份有限公司 | Automatic annular sealing device |
| CN114427372B (en) * | 2020-09-09 | 2024-05-24 | 中国石油化工股份有限公司 | Automatic annular sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 |