CN208330274U - Blowout prevention valve and tubing string - Google Patents
Blowout prevention valve and tubing string Download PDFInfo
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- CN208330274U CN208330274U CN201820770535.0U CN201820770535U CN208330274U CN 208330274 U CN208330274 U CN 208330274U CN 201820770535 U CN201820770535 U CN 201820770535U CN 208330274 U CN208330274 U CN 208330274U
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- valve
- closeouts
- blocking portion
- blowout prevention
- valve rod
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Abstract
The utility model discloses a kind of blowout prevention valve and tubing strings, are related to oil well operation well control technique field, and blowout prevention valve includes: valve body, and valve body has channel, has blocking portion on the inner wall of valve body；It is arranged in the intracorporal valve rod of valve, one end of valve rod is connected with pressure ring, and the upper and lower side of pressure ring is connected, and has lug boss on valve rod, is arranged with closeouts below the lug boss of valve rod, closeouts can be slided along valve rod；It is arranged in the intracorporal baffle ring of valve, the upper end of baffle ring can resist closeouts；There are two types of operating positions for closeouts tool, and under the first operating position, closeouts offset with blocking portion so that the upper space of blocking portion and the lower space of blocking portion mutually disconnect；Under second of operating position, closeouts are separated with blocking portion so that the upper space of blocking portion is connected with the lower space of blocking portion.The application can be realized effective control to pit shaft during playing lower tubular column, to prevent from removing the generation of pit shaft incontrollable accidents during tubing string.
Description
Technical field
The utility model relates to oil well operation well control technique field, in particular to a kind of blowout prevention valve and tubing string.
Background technique
Existing oil well is generally provided with half envelope blowout preventer among oil jacket annulus during playing lower tubular column, is sealed by half envelope
Well device controls oil jacket annulus, to prevent blowout.But the typically no blowout prevention procedure in tubing string, so it be easy to cause pipe
Well control is in runaway condition inside column, especially will cause well wellbore during playing lower tubular column and emergency event occurs and can not obtain
The appearance of the case where to control.Such case be easy to cause environmental pollution and the generation of personnel casualty accidents, is unfavorable for currently to ring
The protection in border.
Utility model content
In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide for the utility model embodiment
A kind of blowout prevention valve and tubing string can be realized effective control to pit shaft, during playing lower tubular column to prevent from removing tubing string process
The generation of middle pit shaft incontrollable accidents.
The specific technical solution of the utility model embodiment is:
A kind of blowout prevention valve, the blowout prevention valve include:
Valve body, the valve body have the channel extended in the axial direction, have blocking portion on the inner wall of the valve body；
The intracorporal valve rod of the valve is set in the axial direction, and one end of the valve rod is connected with pressure ring, the pressure ring
Upper and lower side is connected, and has lug boss on the valve rod, is arranged with closeouts, the closure below the lug boss of the valve rod
Part can be slided along the valve rod；
It is arranged in the intracorporal baffle ring of the valve, the baffle ring is set on the valve rod, and the upper end of the baffle ring can be supported
State closeouts in residence；
There are two types of operating positions for the closeouts tool, under the first operating position, the closeouts and the blocking portion
It offsets so that the upper space of the blocking portion and the lower space of the blocking portion mutually disconnect；Under second of operating position,
The closeouts be separated with the blocking portion so that the upper space of the blocking portion and the blocking portion lower space phase
Connection.
In a preferred embodiment, on the pressure ring with through hole so that the pressure ring top and bottom phase
Connection.
In a preferred embodiment, there is internal screw thread on the inner wall of the valve body upper end.
In a preferred embodiment, upper end and the pressure ring phase by way of welding or screw thread on the valve rod
Connection.
In a preferred embodiment, the valve body lower end is connected with connector, and the upper end of the connector can resist institute
State baffle ring.
In a preferred embodiment, there is internal screw thread, the upper end of the connector has on the inner wall of the valve body
External screw thread, the internal screw thread of the valve interior wall are connected with the external screw thread of the upper end of joint.
In a preferred embodiment, opening for the baffle ring top and bottom connection can be made by having on the baffle ring
Hole.
In a preferred embodiment, the lower end of the valve rod is provided with nut, and the nut is located at the baffle ring
Lower section.
In a preferred embodiment, the inside of the blocking portion is corresponding with the outer shape of the closeouts.
In a preferred embodiment, the closeouts include piston.
A kind of tubing string, the tubing string include multiple sequentially connected tubing units, and the tubing unit includes: such as above-mentioned
Blowout prevention valve described in one；It is connected to the oil pipe of the blowout prevention valve lower end.
The technical solution of the utility model have it is following significant the utility model has the advantages that
When running string, the lower end of each oil pipe can connect the blowout prevention valve in a application, under blowout prevention valve
End links together with its underpart oil pipe upper end again, and the upper end of blowout prevention valve then links together with the oil pipe of upper part, to make
The top of the blocking portion of pressure ring and valve inner offsets, closeouts are separated with the blocking portion, and closeouts are in the at this time
Under two kinds of operating positions, the upper space of the blocking portion is connected with the lower space of the blocking portion, i.e., valve body is upper and lower
Portion is connected, and fluid can pass freely through valve body along channel.Blowout such as occurs during playing lower tubular column, oil sets annular space is logical
The control of the well control devices such as more than half envelope blowout preventers, the inside of tubing string is then controlled by this blowout prevention valve.When top, after removing well occurs for tubing string
Spray, then fluid can impact closeouts, and then closeouts and valve rod is driven to move upwards, when closeouts and blocking portion are inconsistent,
The intracorporal passage plugging of valve has been controlled blowout so that fluid be prevented to continue up flowing by closeouts.Pass through above-mentioned mistake
Blowout prevention valve in journey the application is the effective control realized during playing lower tubular column to pit shaft, is playing down tube to prevent
The generation of pit shaft incontrollable accidents during column.
Referring to following description and accompanying drawings, the particular implementation of the utility model is disclosed in detail, specifies practical
Novel principle can be in a manner of adopted.It should be understood that the embodiments of the present invention in range not thus by
Limitation.In the range of the spirit and terms of appended claims, the embodiments of the present invention includes many changes, modifications
With it is equivalent.The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model
Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model
Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this
Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.
Fig. 1 is the structural schematic diagram of blowout prevention valve in the utility model embodiment.
The appended drawing reference of the figures above:
1, valve body；11, blocking portion；2, valve rod；21, lug boss；3, pressure ring；31, through hole；4, closeouts；5, baffle ring；
51, aperture；6, nut；7, connector.
Specific embodiment
In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood
Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without
It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that
Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.It needs to illustrate
It is that when element is referred to as " being set to " another element, it can directly on the other element or there may also be placed in the middle
Element.When an element is considered as " connection " another element, it can be directly to another element or can
Centering elements can be existed simultaneously.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or
Electrical connection, the connection being also possible to inside two elements can be directly connected, can also indirectly connected through an intermediary,
For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.Made herein
Term " vertical ", " horizontal ", "upper", "lower", "left", "right" and similar statement simply to illustrate that mesh
, it is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
In order to can be realized effective control to pit shaft during playing lower tubular column, to prevent from removing pit shaft during tubing string
The generation of incontrollable accidents, proposes a kind of blowout prevention valve in this application, and Fig. 1 is the structural representation in the utility model embodiment
Figure, as shown in Figure 1, blowout prevention valve may include: valve body 1, valve body 1 has a channel extended in the axial direction, on the inner wall of valve body 1
With blocking portion 11；Valve rod 2 in valve body 1 is set in the axial direction, one end of valve rod 2 is connected with pressure ring 3, pressure ring 3 it is upper
Lower end is connected, and has lug boss 21 on valve rod 2, and the lower section of the lug boss 21 of valve rod 2 is arranged with closeouts 4, and closeouts 4 can
It is slided along valve rod 2；Baffle ring 5 in valve body 1 is set, and baffle ring 5 is set on valve rod 2, and the upper end of baffle ring 5 can resist envelope
Blocking piece 4；There are two types of operating positions for the tool of closeouts 4, and under the first operating position, closeouts 4 and blocking portion 11 offset so as to hinder
The upper space of stopper 11 and the lower space of blocking portion 11 mutually disconnect；Exist second of operating position, closeouts 4 and blocking portion
11 are separated so that the upper space of blocking portion 11 is connected with the lower space of blocking portion 11.
When running string, the lower end of each oil pipe can connect the blowout prevention valve in a application, under blowout prevention valve
End links together with its underpart oil pipe upper end again, and the upper end of blowout prevention valve then links together with the oil pipe of upper part, to make
It obtains pressure ring 3 and the top of the blocking portion 11 inside valve body 1 offsets, closeouts 4 are separated with blocking portion 11, at this time at closeouts 4
Under second of operating position, the upper space of blocking portion 11 is connected with the lower space of blocking portion 11, i.e., valve body 1 is upper and lower
Portion is connected, and fluid can pass freely through valve body 1 along channel.Blowout, oil sets annular space such as occurs during playing lower tubular column
By well control devices controls such as half envelope blowout preventers, the inside of tubing string is then controlled by this blowout prevention valve.When top, tubing string occurs after removing
Blowout, then fluid can impact closeouts 4, and then closeouts 4 and valve rod 2 is driven to move upwards, when closeouts 4 and 11 phase of blocking portion
When conflict, the passage plugging in valve body 1 so that fluid be prevented to continue up flowing, that is, has been controlled blowout by closeouts 4.
The blowout prevention valve in the application is the effective control realized during playing lower tubular column to pit shaft by the above process, to prevent
The generation of pit shaft incontrollable accidents during playing lower tubular column.
In order to be better understood by the blowout prevention valve in the application, it will be further explained and will be illustrated below.Such as Fig. 1
Shown, valve body 1 has the channel extended in the axial direction, which passes through for fluid.Have on the inner wall of 1 upper end of valve body
Internal screw thread, the upper end of valve body 1 are used to connect the oil pipe on top, and oil pipe is connected with the internal screw thread of 1 upper end inner wall of valve body.Valve body 1
Inner wall on there is blocking portion 11, the centre of blocking portion 11 is for being fed through valve rod 2.
As shown in Figure 1, valve rod 2 is arranged in the axial direction in valve body 1, one end of valve rod 2 is connected with pressure ring 3.On pressure ring 3
With through hole 31 so that the top and bottom of pressure ring 3 are connected, through hole 31 can be to be multiple, and the center around pressure ring 3 is in
Circumferentially distributed, through hole 31 can make fluid pass through pressure ring 3.The upper end of valve rod 2 can be connect in several ways with pressure ring 3
It pounds together, need to only meet the two can mutually drive, such as is connected by way of welding or screw thread.
As shown in Figure 1, having lug boss 21 on valve rod 2, the lower section of the lug boss 21 of valve rod 2 is arranged with closeouts 4, the valve
The lug boss 21 of bar 2 is for limiting closeouts 4.The inside of blocking portion 11 is corresponding with the outer shape of closeouts 4, envelope
Blocking piece 4 may include piston.Meanwhile when the upper end connected pipes of valve body 1, oil pipe is screwed into the internal screw thread of 1 upper end inner wall of valve body,
The lower end of oil pipe, which can resist pressure ring 3, moves down it, and pressure ring 3 is downward with ovable valve stem 2 in turn.When valve rod 2 moves down, valve
Bar 2 is able to drive closeouts 4 and moves down, so that closeouts 4 and the blocking portion 11 of valve body 1 are separated.Closeouts 4 can
It is slided along valve rod 2.When top, blowout occurs after removing for tubing string, then fluid can impact closeouts 4, and then drive closeouts 4
And valve rod 2 moves upwards, when closeouts 4 and blocking portion 11 are inconsistent, closeouts 4 are by the passage plugging in valve body 1, to hinder
Stop fluid and continued up flowing, that is, controls blowout.
As shown in Figure 1, baffle ring 5 is arranged in valve body 1, it is set on valve rod 2.When closeouts 4 on valve rod 2 to downslide
Dynamic the upper end of baffle ring 5 can resist closeouts 4 to a certain extent, so that closeouts 4 be avoided to be detached from valve rod 2.Meanwhile baffle ring 5 can
It is limited with the lower end to valve rod 2, valve rod 2 is set along the vertical direction always.On baffle ring 5 have can make 5 upper end of baffle ring and
The aperture 51 of lower end connection, the aperture 51 pass through baffle ring 5 for fluid.
As shown in Figure 1,1 lower end of valve body can connect connector 7, the upper end of connector 7 can resist baffle ring 5.A kind of feasible
Embodiment in, there is internal screw thread, the upper end of connector 7 has external screw thread, the internal screw thread of 1 inner wall of valve body on the inner wall of valve body 1
It is connected with the external screw thread of 7 upper end of connector.The lower end of connector 7 have external screw thread, the external screw thread can be used for under blowout prevention valve
The oil pipe at end is connected.
In a preferred embodiment, as shown in Figure 1, the lower end of valve rod 2 is provided with nut 6, nut 6 is located at baffle ring
5 lower sections.Nut 6 can be used for that valve rod 2 is prevented to be detached from baffle ring 5 when moving up.
It also proposed a kind of tubing string in this application, tubing string includes multiple sequentially connected tubing units, tubing unit packet
It includes: such as any of the above-described blowout prevention valve；It is connected to the oil pipe of blowout prevention valve lower end.
Blowout prevention valve in the application and tubing string be useful in tubing string connect and disassembly process in, so as to prevent blowout
Or get rid of imperial accident.Meanwhile blowout prevention valve arrangement is simple, does not increase task difficulty, and operation is advantageously reduced in entire operation process
The generation of casualties and environmental pollution accident, and be conducive to the control of the pit shaft in operation process.
Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiments difference.It discloses
All articles and reference, including patent application and publication are hereby incorporated by by quoting for various purposes.Description combination
Term " substantially by ... constitute " should include identified element, ingredient, component or step and essentially without influence should
Other elements, ingredient, component or the step of combined basic novel feature.It is described here using term "comprising" or " comprising "
Element, ingredient, component or step combination it is also contemplated that the implementation being made of substantially these elements, ingredient, component or step
Mode.Here by using term " can with ", it is intended to which the described any attribute for illustrating that " can with " includes all is optional.It is more
A element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Alternatively, single collection
Multiple element, ingredient, component or the step of separation can be divided at element, ingredient, component or step.For describe element,
The open "a" or "an" of ingredient, component or step is not said to exclude other elements, ingredient, component or step.
The foregoing is merely several embodiments of the utility model, although embodiment disclosed by the utility model is such as
On, but the content is only to facilitate the embodiment for understanding the utility model and using, it is practical new to be not intended to limit this
Type.Any those skilled in the art of the present invention are not departing from spirit and scope disclosed by the utility model
Under the premise of, any modification and variation, but the patent of the utility model can be made in the formal and details of embodiment
Protection scope must be still subject to the scope defined in the appended claims.
Claims (11)
1. a kind of blowout prevention valve, which is characterized in that the blowout prevention valve includes:
Valve body, the valve body have the channel extended in the axial direction, have blocking portion on the inner wall of the valve body；
The intracorporal valve rod of the valve is set in the axial direction, one end of the valve rod is connected with pressure ring, the pressure ring up and down
End is connected, and has lug boss on the valve rod, is arranged with closeouts, the closeouts energy below the lug boss of the valve rod
It is enough to be slided along the valve rod；
It is arranged in the intracorporal baffle ring of the valve, the baffle ring is set on the valve rod, and the upper end of the baffle ring can resist institute
State closeouts；
There are two types of operating positions for the closeouts tool, and under the first operating position, the closeouts offset with the blocking portion
So that the upper space of the blocking portion and the lower space of the blocking portion mutually disconnect；It is described under second of operating position
Closeouts are separated with the blocking portion so that the upper space of the blocking portion is connected with the lower space of the blocking portion.
2. blowout prevention valve according to claim 1, which is characterized in that with through hole so that the pressure ring on the pressure ring
Top and bottom are connected.
3. blowout prevention valve according to claim 1, which is characterized in that have internal screw thread on the inner wall of the valve body upper end.
4. blowout prevention valve according to claim 1, which is characterized in that the upper end of the valve rod and the pressure ring by welding or
The mode of screw thread is connected.
5. blowout prevention valve according to claim 1, which is characterized in that the valve body lower end is connected with connector, the connector
Upper end can resist the baffle ring.
6. blowout prevention valve according to claim 5, which is characterized in that there is internal screw thread on the inner wall of the valve body, it is described to connect
The upper end of head has external screw thread, and the internal screw thread of the valve interior wall is connected with the external screw thread of the upper end of joint.
7. blowout prevention valve according to claim 1, which is characterized in that having on the baffle ring can make the baffle ring upper end under
Hold the aperture of connection.
8. blowout prevention valve according to claim 1, which is characterized in that the lower end of the valve rod is provided with nut, the nut
Below the baffle ring.
9. blowout prevention valve according to claim 1, which is characterized in that the outside of the inside of the blocking portion and the closeouts
Shape is corresponding.
10. blowout prevention valve according to claim 1, which is characterized in that the closeouts include piston.
11. a kind of tubing string, which is characterized in that the tubing string includes multiple sequentially connected tubing units, the tubing unit packet
It includes: the blowout prevention valve as described in any in claims 1 to 10；It is connected to the oil pipe of the blowout prevention valve lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770535.0U CN208330274U (en) | 2018-05-23 | 2018-05-23 | Blowout prevention valve and tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770535.0U CN208330274U (en) | 2018-05-23 | 2018-05-23 | Blowout prevention valve and tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330274U true CN208330274U (en) | 2019-01-04 |
Family
ID=64774633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820770535.0U Active CN208330274U (en) | 2018-05-23 | 2018-05-23 | Blowout prevention valve and tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837595A (en) * | 2021-02-02 | 2022-08-02 | 中国石油天然气股份有限公司 | Oil well blowout preventer and method |
-
2018
- 2018-05-23 CN CN201820770535.0U patent/CN208330274U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837595A (en) * | 2021-02-02 | 2022-08-02 | 中国石油天然气股份有限公司 | Oil well blowout preventer and method |
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