CN208310722U - A kind of oily be inserted into sea has sealed well gradually deblocking device - Google Patents
A kind of oily be inserted into sea has sealed well gradually deblocking device Download PDFInfo
- Publication number
- CN208310722U CN208310722U CN201820511955.7U CN201820511955U CN208310722U CN 208310722 U CN208310722 U CN 208310722U CN 201820511955 U CN201820511955 U CN 201820511955U CN 208310722 U CN208310722 U CN 208310722U
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- CN
- China
- Prior art keywords
- housing
- gradually deblocking
- sealed well
- top connection
- sea
- 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 relates to a kind of sea oil insertions to have sealed well gradually deblocking device.Mainly solve the problems, such as existing marine oil field rise separate injection tubing string when because dirty card reason easily lead to deblocking load it is excessive.It is characterized by: passing through shear pin (4) connection housing (3) outside the top connection (1), housing (3) bottom thread connects lower contact (7), housing (3) top is threadedly coupled helmet (2), and is clearance fit between helmet (2) and top connection (1).Sea oil insertion, which has sealed well gradually deblocking device, can realize gradually deblocking, reduce lift pipe string load.
Description
Technical field
The utility model relates to oilfield, specifically a kind of sea oil insertion has sealed well gradually deblocking device.
Background technique
Marine oil field separate injection tubing string is generally realized using multistage permanent packer insertion tubing string at present, is playing separate injection tubing string
When, because the reasons such as dirt card cause deblocking load excessive.
Summary of the invention
In order to overcome existing marine oil field rise separate injection tubing string when because dirty card reason easily lead to deblocking load it is excessive not
Foot, the utility model provide a kind of oily be inserted into sea and have sealed well gradually deblocking device, and sea oil insertion has sealed well gradually deblocking device
Gradually deblocking can be achieved, reduce lift pipe string load.
The technical solution of the utility model is: a kind of oily be inserted into sea has sealed well gradually deblocking device, including top connection, described
Housing is connected by shear pin outside top connection, jacket bottom is threadedly coupled lower contact, and housing top is threadedly coupled helmet, and
It is clearance fit between helmet and top connection.
It is equipped with sealing ring respectively between the top connection and housing, between lower contact and housing.
The utility model has the following beneficial effects: due to taking above scheme, the utility model is in use such as
Fruit is because load is excessive, it can be achieved that gradually deblocking, reduces lift pipe string load when lift pipe string caused by the reasons such as dirt, and structure is simple, construction
It is convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1- top connection in figure, 2- helmet, 3- housing, 4- shear pin, 5- sealing ring A, 6- sealing ring B, 7- lower contact.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of sea oil, which is inserted into, has sealed well gradually deblocking device, including top connection 1, outside the top connection 1
Housing 3 is connected by shear pin 4,3 bottom thread of housing connects lower contact 7, and 3 top of housing is threadedly coupled helmet 2, and helmet
It is clearance fit between 2 and top connection 1.Be equipped with sealing ring A5 between the top connection 1 and housing 3, lower contact 7 and housing 3 it
Between be equipped with sealing ring B6.
At the scene in use process: it is separated first by dispensing requirement tripping in multistage permanent packer by interval is filled the water, under
Enter the insertion sealing separate layer water injection string with the gradually deblocking device and carries out seperated layer water injection, when to play out water injection string operation,
In well head upper lifting pipe post, if multi-stage sealed section due to factors such as dirt cards, cause upper lifting force to be greater than most upper level gradually deblocking device
Shear pin shearing force, most upper level band gradually deblocking device seal section first on be moved away from packer basepipe seal face, after
Continue in well head upper lifting pipe post, next stage seal section successively on be moved away from packer basepipe seal face, to the last primary seal
After being moved away from packer basepipe seal face in section, insertion water injection string can all be risen to arrive ground.
Claims (2)
1. a kind of sea oil insertion has sealed well gradually deblocking device, including top connection (1), it is characterised in that: the top connection (1) is outside
Portion connects lower contact (7) by shear pin (4) connection housing (3), housing (3) bottom thread, and housing (3) top is threadedly coupled
Helmet (2), and be clearance fit between helmet (2) and top connection (1).
2. oil insertion in sea according to claim 1 has sealed well gradually deblocking device, it is characterised in that: the top connection (1)
It is equipped with sealing ring respectively between housing (3), between lower contact (7) and housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820511955.7U CN208310722U (en) | 2018-04-12 | 2018-04-12 | A kind of oily be inserted into sea has sealed well gradually deblocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820511955.7U CN208310722U (en) | 2018-04-12 | 2018-04-12 | A kind of oily be inserted into sea has sealed well gradually deblocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208310722U true CN208310722U (en) | 2019-01-01 |
Family
ID=64719722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820511955.7U Expired - Fee Related CN208310722U (en) | 2018-04-12 | 2018-04-12 | A kind of oily be inserted into sea has sealed well gradually deblocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208310722U (en) |
-
2018
- 2018-04-12 CN CN201820511955.7U patent/CN208310722U/en not_active Expired - Fee Related
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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: 20190101 Termination date: 20190412 |