CN201474647U - Oil well anti-jack apparatus - Google Patents
Oil well anti-jack apparatus Download PDFInfo
- Publication number
- CN201474647U CN201474647U CN2009202250824U CN200920225082U CN201474647U CN 201474647 U CN201474647 U CN 201474647U CN 2009202250824 U CN2009202250824 U CN 2009202250824U CN 200920225082 U CN200920225082 U CN 200920225082U CN 201474647 U CN201474647 U CN 201474647U
- Authority
- CN
- China
- Prior art keywords
- tubing string
- back timber
- oil well
- footstock
- jack
- 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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- Supports For Pipes And Cables (AREA)
Abstract
The utility model discloses an oil well anti-jack apparatus, comprising an anti-jack seat fixed on top of a blowout preventer; an anti-jack beam is arranged on top of the anti-jack seat; a pipe string mouth for placing the pipe string is arranged on the anti-jack beam; a baffle plate for preventing the pipe string from dropping is disposed on the pipe string mouth; and a connecting apparatus is disposed between the anti-jack seat and the anti-jack beam. The utility model has the simple structure, convenient installation, and is able to prevent the pipe string from jacking upwards in blowout so as to effectively and quickly control blowout.
Description
Technical field
The utility model relates to a kind of well mouth of oil well instrument, relates in particular to a kind of oil well with preventing ejection device.
Background technology
In a single day blowout takes place in well workover or drilling process, tubing string tends to pushing up on the well liquid in the well, causes difficulty for the control blowout, even uncontrollable blowout, brings certain difficulty to underground work like this.
The utility model content
The utility model provides a kind of simple in structure, easy to use at the defective that prior art exists, and can prevent from during blowout to push up on the tubing string, so that control the anti-ejection device of the oil well of blowout effectively fast.
For achieving the above object, the technical solution of the utility model is: oil well is with preventing ejection device, comprise the anti-footstock that is fixedly installed on the preventer top, the top of described anti-footstock is provided with anti-back timber, described anti-back timber is provided with the tubing string mouth that is used to place tubing string, described tubing string mouth place also is provided with and is used to the baffle plate that prevents that tubing string from coming off, is provided with linkage between described anti-footstock and the described anti-back timber.
As a kind of improvement, described linkage is that the end is fixedly installed on steel cable or the rigid rod on anti-footstock and the anti-back timber respectively.
As further improvement, described tubing string mouth and described baffle plate include a plurality of.
After having adopted technique scheme, the beneficial effect that the utility model is obtained is: by the upper fixed at preventer anti-footstock is set, linkage will be prevented that footstock and anti-back timber are fixed together, again tubing string is placed in the tubing string mouth on the anti-back timber and blocks, close baffle plate then, thereby can make itself and preventer unite use, when preventing gusher, play the effect that prevents that tubing string from moving up, the utility model is not only simple in structure, easy for installation, swift to operate, and can prevent to push up on the tubing string, so that control blowout effectively fast.
Description of drawings
Fig. 1 is the user mode structure chart of the utility model embodiment;
Fig. 2 is the structural representation of the anti-back timber of the utility model.
The specific embodiment
As shown in Figure 1, oil well comprises anti-footstock 1, anti-back timber 2, baffle plate 3, linkage 4 with anti-ejection device.Wherein, anti-footstock 1 is fixedly installed on the top of preventer 7 by linkages such as bolts, and prevents that back timber 2 is fixedly mounted on the top of anti-footstock 1 by linkage 4.
Above-mentioned linkage 4 is that the end is fixedly installed on steel cable or the rigid rod on anti-footstock 1 and the anti-back timber 2 respectively, certainly, can also be other known structure, and described steel cable or rigid rod comprise 2, are symmetricly set on two ends on anti-footstock 1 and the anti-back timber 2.Anti-footstock 1, anti-back timber 2 and linkage 4 generally place a side of preventer 7, are convenient to rob fast spray like this.
As shown in Figure 2, above-mentioned anti-back timber 2 is provided with tubing string mouth 5, can be used for placing tubing string 6 by tubing string mouth 5, also be provided with at described tubing string mouth 5 places and be used to the baffle plate 3 that prevents that tubing string 6 from coming off, tubing string 6 can be blocked by tubing string mouth 5 so in use, and can prevent that by baffle plate 3 tubing string 6 from coming off, easy for installation, swift to operate, and can prevent top on the tubing string 6 when the blowout by this structure.Under the normal condition, anti-back timber 2 places preventer one side, when gas blowout accident takes place, opens baffle plate 3, has held anti-back timber 2, the tubing string mouth on the anti-back timber 25 is aimed at tubing string 6 block, and closes baffle plate 3, prevents top on the tubing string 6.
Above-mentioned tubing string mouth 5 and described baffle plate 3 include a plurality of, promptly on anti-back timber 2 a plurality of tubing string mouths 5 can be set, and at a plurality of baffle plates 3 of tubing string mouth 5 place's relative set, can control multiple tubing string 6 like this, prevent the top.
The utility model is simple in structure, and is easy for installation, can prevent top on the tubing string 6 during blowout, thus so that control blowout effectively fast.
Claims (3)
1. oil well is with preventing ejection device, comprise the anti-footstock that is fixedly installed on the preventer top, it is characterized in that: the top of described anti-footstock is provided with anti-back timber, described anti-back timber is provided with the tubing string mouth that is used to place tubing string, described tubing string mouth place also is provided with and is used to the baffle plate that prevents that tubing string from coming off, is provided with linkage between described anti-footstock and the described anti-back timber.
2. oil well according to claim 1 is characterized in that with preventing ejection device: described linkage is that the end is fixedly installed on steel cable or the rigid rod on anti-footstock and the anti-back timber respectively.
3. oil well according to claim 1 is with preventing ejection device, and it is characterized in that: described tubing string mouth and described baffle plate include a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202250824U CN201474647U (en) | 2009-08-25 | 2009-08-25 | Oil well anti-jack apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202250824U CN201474647U (en) | 2009-08-25 | 2009-08-25 | Oil well anti-jack apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474647U true CN201474647U (en) | 2010-05-19 |
Family
ID=42410895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202250824U Expired - Fee Related CN201474647U (en) | 2009-08-25 | 2009-08-25 | Oil well anti-jack apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081540A (en) * | 2020-10-26 | 2020-12-15 | 中国石油天然气集团有限公司 | Pressurized type tubular column internal blowout prevention valve installing method |
-
2009
- 2009-08-25 CN CN2009202250824U patent/CN201474647U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081540A (en) * | 2020-10-26 | 2020-12-15 | 中国石油天然气集团有限公司 | Pressurized type tubular column internal blowout prevention valve installing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |