CN201121499Y - Anti-theft plugging tubular pile for dead well - Google Patents
Anti-theft plugging tubular pile for dead well Download PDFInfo
- Publication number
- CN201121499Y CN201121499Y CNU2007200225072U CN200720022507U CN201121499Y CN 201121499 Y CN201121499 Y CN 201121499Y CN U2007200225072 U CNU2007200225072 U CN U2007200225072U CN 200720022507 U CN200720022507 U CN 200720022507U CN 201121499 Y CN201121499 Y CN 201121499Y
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- China
- Prior art keywords
- suspended
- sealing
- self
- joint
- connecting pipe
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- 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 - Lifetime
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Abstract
The utility model relates to an oil well sealing device, in particular to a theft-proof sealing pipe column for an oil well out of use. The sealing device consists of a suspended joint, a suspended connecting pipe, a compression rubber cylinder, a self-sealing valve core and a return spring. The suspended joint is provided with an external screw thread matched with an internal thread of a bushing of a wellhead, and the suspended connecting pipe and the compression rubber cylinder used by a sealing ring are orderly arranged under the suspended joint. The inside of the suspended connecting pipe is provided with the self-sealing valve core under which the return spring is arranged. The suspended joint and the suspended connecting pipe are hollow. When in use, the sealing pipe column is arranged into the well and then tightened through rotation so that the sealing pipe column is firmly fixed on the wellhead bushing. A professional supporting spanner is used to be positioned from the hollow suspended joint and suspended connecting pipe into the self-sealing valve core which is then tightened so that the compression rubber cylinder is inflated to seal the oil well. As the entire device is arranged in the wellhead bushing, not only the theft-proofness but also the effective crude oil overflow can be achieved, meanwhile, the sealing device has simple structure and is conveniently operated.
Description
One, technical field
The utility model relates to a kind of oil well mouth plugging device, particularly relates to the antitheft shutoff tubing string of a kind of inactive well.
Two, background technology
Existing a lot of abandoned wells in oil field and tube drawing well; when strata pressure gos up; a small amount of crude oil well head of usually can gushing out pollutes, for addressing this problem; generally adopt wellhead cap that abandoned well or tube drawing well are shut now; but the lawless person steals and cuts wellhead cap, does not also have due effect, in addition; because wellhead cap is directly installed on the well head, can't safety relief.
Three, utility model content
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of simple in structure, simple operation, the antitheft shutoff tubing string of anti-theft are provided.
The purpose of this utility model is achieved by the following technical solution, and it is made up of suspension joint, suspension tube connector, compression packing element, self-styled spool and back-moving spring.Its structure and assembling feature are: suspension joint is provided with the male thread that cooperates with well head sleeve pipe internal thread, it is installed successively down and hangs tube connector, seal ring set with compressing packing element, hang in the tube connector self-styled spool is installed, self-styled spool is installed back-moving spring down, and suspension joint and suspension tube connector all are hollow.During use, with under this shutoff tubing string in well head, screw the shutoff tubing string, it is gone up securely on the well head sleeve pipe, utilize special-purpose assorted spanner from the suspension joint of hollow with hang under the tube connector, tighten self-styled spool to self-styled spool, thereby the compression packing element expands, the sealing oil well.During pressure release,, connect valve, can put pressure, dismounting by special tool.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
The 1-suspension joint; 2-hangs tube connector; The self-styled spool of 3-; The 4-back-moving spring; 5-compresses packing element
Five, the specific embodiment
With reference to accompanying drawing, it is made up of suspension joint 1, suspension tube connector 2, compression packing element 5, self-styled spool 3 and back-moving spring 4.Its structure and assembling feature are: suspension joint 1 is provided with the male thread that cooperates with well head sleeve pipe internal thread, it is installed successively down and hangs tube connector 2, seal ring set with compressing packing element 5, hang in the tube connector 2 self-styled spool 3 is installed, self-styled spool is installed back-moving spring 43 times, and suspension joint 1 and suspension tube connector 2 all are hollow.During use, with under this shutoff tubing string in well head, screw the shutoff tubing string, make its firm going up on the well head sleeve pipe, utilize special-purpose assorted spanner from the suspension joint 1 of hollow with hang tube connector 2 times, tighten self-styled spool 3 to self-styled spool 3, thereby compression packing element 5 expands, the sealing oil well.During pressure release,, connect valve, can put pressure, dismounting by special tool.Because whole device all is installed in the well head sleeve pipe, therefore not only can play antitheft effect, can also prevent effectively that crude oil is excessive.
Claims (1)
1. antitheft shutoff tubing string of inactive well, form by suspension joint (1), suspension tube connector (2), compression packing element (5), self-styled spool (3) and back-moving spring (4), it is characterized in that: suspension joint (1) is provided with the male thread that cooperates with well head sleeve pipe internal thread, it is installed successively down and hangs tube connector (2), seal ring set with compressing packing element (5), hang in the tube connector (2) self-styled spool (3) is installed, self-styled spool (3) is installed back-moving spring (4) down, and suspension joint (1) and suspension tube connector (2) all are hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200225072U CN201121499Y (en) | 2007-05-22 | 2007-05-22 | Anti-theft plugging tubular pile for dead well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200225072U CN201121499Y (en) | 2007-05-22 | 2007-05-22 | Anti-theft plugging tubular pile for dead well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121499Y true CN201121499Y (en) | 2008-09-24 |
Family
ID=40008725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200225072U Expired - Lifetime CN201121499Y (en) | 2007-05-22 | 2007-05-22 | Anti-theft plugging tubular pile for dead well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121499Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952947A (en) * | 2019-11-22 | 2020-04-03 | 白瑞义 | Wellhead sealing control device |
-
2007
- 2007-05-22 CN CNU2007200225072U patent/CN201121499Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952947A (en) * | 2019-11-22 | 2020-04-03 | 白瑞义 | Wellhead sealing control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080924 |
|
| CX01 | Expiry of patent term |