CN207847589U - A kind of simple Well safety control device for concentric tube column - Google Patents
A kind of simple Well safety control device for concentric tube column Download PDFInfo
- Publication number
- CN207847589U CN207847589U CN201820041314.XU CN201820041314U CN207847589U CN 207847589 U CN207847589 U CN 207847589U CN 201820041314 U CN201820041314 U CN 201820041314U CN 207847589 U CN207847589 U CN 207847589U
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- concentric tube
- valve
- tube column
- safety control
- control device
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Abstract
The utility model is a kind of simple Well safety control device for concentric tube column, is made of device body, described device ontology includes coupling, valve seat and outer barrel；The valve seat top is connected with coupling, and its underpart is connected with outer barrel；The valve base inner wall is connected with safety valve, which can effectively control concentric tube column and return out fluid technique problem, protection ocean platform, equipment and marine environment.
Description
Technical field
The utility model is related to offshore oil exploitation downhole tool technology more particularly to a kind of downhole safety for concentric tube column
Tool.
Background technology
Related regulations are produced according to national marine Oil Safety, offshore gas well, flowing well should install underground envelope from the well that overflows
Every device, 30 meters of sea bed face hereinafter, storm valve should be installed, prevent downhole fluid surprisingly on return to ocean platform and ocean
Environment causes damages.With growing, concentric tube hydraulic jet pump, the parallel pipe water-jet at present of hydrojet pump technology
The technologies such as pump, sand-discharge oil production jet pump continuously emerge, and the needs such as concentric tube hydraulic jet pump, sand-discharge oil production jet pump are used
The flow string of concentric tube, existing storm valve cannot be installed and used, and the demand of maritime safety production is cannot be satisfied.For
Case above, this patent devise one kind and being used for the integrated downhole safety tool of concentric tube column, can pass through ground hydraulic control
System, while it being turned on or off the sprue and annular channel of concentric tube column, it solves concentric tube hydraulic jet pump or sediment outflow is adopted
The problem of oil ejector pump is without downhole safety tool protects ocean platform and marine environment.
Utility model content
The technical issues of the application solves is to provide a kind of simple downhole safety control tool for concentric tube column, the dress
Concentric tube column can effectively be controlled by, which setting, returns out fluid technique problem, protection ocean platform, equipment and marine environment.
In order to reach the utility model purpose, a kind of downhole safety tool for concentric tube column of the application, including：
A kind of simple Well safety control device for concentric tube column is made of device body, described device ontology packet
Include coupling, valve seat and outer barrel：The valve seat top is connected with coupling, and its underpart is connected with outer barrel；The valve base inner wall is lived
It is dynamic to be connected with safety valve.
The valve base inner wall is additionally provided with vent valve.
The vent valve is balance sphere.
The safety valve is flexibly connected by torsional spring with valve base inner wall.
Described device ontology is connected with center little oil pipe.
Advantageous effect
Compared with prior art, existing storm valve can be only used for single oil pipe pipe such as electric submersible pump, casing jet pump
Column, a kind of downhole safety tool for concentric tube column that the utility model provides, solves concentric tube hydraulic jet pump or other are same
The problem of heart flow string is without downhole safety tool.When in case of emergency, by above carrying little oil pipe tubing string, closing in time
Downhole safety device valve plate prevents to return on fluid in concentric tube column, protection offshore platform equipment, safety and marine environment.
Description of the drawings
Fig. 1 is the entirety sectional view of the utility model；
Reference numeral：1- upper connections；2- valve seats；3- safety valves；4- torsional springs；5- vent valves；6- outer barrels；7- seals spiral shell
Line；The centers 8- little oil pipe；9- tubing round thread.
Specific implementation mode
In order to further appreciate that the contents, features and effects of the utility model, following instance is lifted, and coordinate attached drawing detailed
It is described as follows：
As shown in Figure 1, the utility model provides a kind of simple Well safety control device for concentric tube column, by device
Ontology is constituted, and described device ontology includes coupling 1, valve seat 2 and outer barrel 6；2 top of the valve seat is connected with coupling 1, under
Portion is connected with outer barrel 6；The coupling is equipped with screw thread 9；The valve seat is provided with sealing screw thread on 6 inside.The valve seat 2
Inner wall is connected with safety valve 3.The safety valve 3 is flexibly connected by torsional spring 4 with 2 inner wall of valve seat.In the utility model
Safety valve 3 is petal-shaped, and sealing can be effectively performed.Normal condition safety valve 3 can pass through dead weight or center little oil pipe thrust
It opens, emergency is by above carrying little oil pipe tubing string, and safety device safety valve under closed-in well, prevents stream in concentric tube column in time
It is returned on body.2 inner wall of the valve seat is additionally provided with vent valve 5.The vent valve 5 is balance sphere.When strata pressure is excessively high, center
Little oil pipe opens vent valve 5, so that two-way pressure is balanced, more smooth opening safety valve 3.
The utility model is encountering offshore platform emergency, above carries center little oil pipe 8, and torsional spring is pacified under closed-in well in time
The sprue of full valve plate 3, the utility model device is closed, and formation fluid is prevented to be returned on concentric tube column.At this point, in center little oil pipe 8
Gas stream cannot be flowed up by the present apparatus, the oil gas runner in concentric tube column is completely severed, hydrocarbon fluids cannot on
It returns, to achieve the purpose that protecting platform equipment, personnel safety and marine environment.
The above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the enlightenment of the utility model, in the case where not departing from the utility model aims and claimed range, may be used also
To make many variations, these belong to the row of the protection of the utility model.
Claims (5)
1. a kind of simple Well safety control device for concentric tube column is made of device body, it is characterised in that：The dress
It includes coupling, valve seat and outer barrel to set ontology：The valve seat top is connected with coupling, and its underpart is connected with outer barrel；The valve
Seat inner wall is connected with safety valve.
2. a kind of simple Well safety control device for concentric tube column according to claim 1, it is characterised in that：Institute
It states valve base inner wall and is additionally provided with vent valve.
3. a kind of simple Well safety control device for concentric tube column according to claim 2, it is characterised in that：Institute
It is balance sphere to state vent valve.
4. according to a kind of any simple Well safety control devices for concentric tube column of claim 1-3, feature
It is：The safety valve is connect by torsional spring with valve base inner wall.
5. a kind of simple Well safety control device for concentric tube column according to claim 4, it is characterised in that：Institute
It states device body and is connected with center little oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041314.XU CN207847589U (en) | 2018-01-10 | 2018-01-10 | A kind of simple Well safety control device for concentric tube column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041314.XU CN207847589U (en) | 2018-01-10 | 2018-01-10 | A kind of simple Well safety control device for concentric tube column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207847589U true CN207847589U (en) | 2018-09-11 |
Family
ID=63417797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820041314.XU Active CN207847589U (en) | 2018-01-10 | 2018-01-10 | A kind of simple Well safety control device for concentric tube column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207847589U (en) |
-
2018
- 2018-01-10 CN CN201820041314.XU patent/CN207847589U/en active Active
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