CN208107214U - Extension airbag valve for simulated experiment - Google Patents
Extension airbag valve for simulated experiment Download PDFInfo
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- CN208107214U CN208107214U CN201820428753.6U CN201820428753U CN208107214U CN 208107214 U CN208107214 U CN 208107214U CN 201820428753 U CN201820428753 U CN 201820428753U CN 208107214 U CN208107214 U CN 208107214U
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- air bag
- chamber
- airbag
- piston
- piston rod
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Abstract
The utility model provides a kind of extension airbag valve for simulated experiment, the crack runner for being used to open or closing in simulated formation, including：Cylinder is equipped with piston in the cylinder；The hollow piston rod being fixedly connected with the piston, the piston rod can generate axial movement under the action of the piston；The air bag on the piston rod is arranged in packaging type, and the air bag can be radially expanded by inflating realization；Wherein, the piston rod can make the air bag enter or exit the crack runner by being axially moved, and the air bag enter the crack runner after the crack runner can be closed by inflation.
Description
Technical field
The utility model relates to petroleum drilling and minings to test laboratory testing rig field, more particularly to stretching for simulated experiment
Contracting airbag valve, in particular for a kind of extension airbag valve for simulated experiment of flow in fracture device.
Background technique
In oil-gas mining process, it will usually fractured reservoir is encountered, and oil gas and drilling fluid are connected to this fracture spaces
It is difficult to will cause wellbore pressure control, or even causes the major accidents such as leakage blowout.In order to solve problems, it is necessary to understand
The flowing law of fluid in formation fracture space.In flow in fracture experimental study, circulation opening and closing valve allows for accurately controlling
Flowing velocity processed and initial flow regime are to meet the flowing law of fluid in subterranean fracture, and therefore, whether valve design closes
Reason is related to whether experimental provision simulation has enough reference values to Practical Project.
Flaw area is big in true earth formation, and indoor experimental apparatus limits general analog stream due to experiment condition
Dynamic area is smaller, if wanting simulated formation crack local flow situation, entrance end fluid must just be entered with identical speed
The long and narrow space in crack, this requires elongated slits runners quickly to open and close as far as possible, thus make fluid it is synchronous as far as possible into
Enter simulation fracture space.This special mobility status causes opening and closing valves this kind of on the market not meet requirement of experiment.
Therefore it is directed to such requirement of experiment, needs a kind of valving that can satisfy sleeve configuration runner and be opened and closed rapidly.
Utility model content
For above-described some technical problems, the utility model is directed to a kind of flexible gas for simulated experiment
Capsule valve, which can realize rapidly opened and closed elongated slits runner by air bag inflation/deflation, and its structure is simple,
Flexible and convenient operation.
According to the utility model, a kind of extension airbag valve for simulated experiment is provided, is used to open or closes
Crack runner in simulated formation, including：Cylinder is equipped with piston in the cylinder；It is fixedly connected with the piston hollow
Piston rod, the piston rod can generate axial movement under the action of the piston；Packaging type is arranged on the piston rod
Air bag, the air bag can by inflate realize be radially expanded；Wherein, the piston rod can be made described by axial movement
Air bag enters or exits the crack runner, and the air bag enter the crack runner after can be closed by inflation
Close the crack runner.
In a preferred embodiment, the extension airbag valve further includes the first airbag chamber being connected to the cylinder
With the second airbag chamber, second airbag chamber is in the simulated formation and is connected to the crack runner.
In a preferred embodiment, air bag gas injection entrance is equipped on the side wall of the piston rod, wherein when described
When air bag is in second airbag chamber, the air bag gas injection entrance is in first airbag chamber.
In a preferred embodiment, it is additionally provided with air bag gas injection outlet on the side wall of the piston rod, is used for institute
It states and is inflated in air bag and make its expansion, wherein when the air bag is in second airbag chamber, the air bag gas injection outlet
In second airbag chamber.
In a preferred embodiment, it is equipped with sealing baffle at the middle part of the piston rod, be used in the air bag
Connection after into the crack runner described in hermetic barrier between the first airbag chamber and second airbag chamber.
In a preferred embodiment, the extension airbag valve further includes gas pressurizer, the gas pressurizer
It is connected by first gas pipeline with first airbag chamber.
In a preferred embodiment, air bag is equipped in the first gas pipeline to switch.
In a preferred embodiment, the cylinder is divided into first piston chamber and second piston chamber, institute by the piston
It states first piston chamber and second piston chamber passes through second gas pipeline respectively and is connected with the gas pressurizer.
In a preferred embodiment, telescoping switch is equipped in the second gas pipeline, the telescoping switch is used
In being connected to the gas pressurizer with the first piston chamber or second piston chamber, so that the piston rod generates axial fortune
It is dynamic, realize that the air bag enters or exit the crack runner.
In a preferred embodiment, it is punished in the connection of first airbag chamber and the cylinder and the second airbag chamber
First partition and second partition that She You be not annular.
Detailed description of the invention
The use of the new type is illustrated below with reference to accompanying drawings.
Fig. 1 shows the structure of the extension airbag valve according to the present utility model for simulated experiment.
Fig. 2 shows that the balloon contraction in extension airbag valve shown in Fig. 1 makes crack runner bowing in the open state
View.
Fig. 3 shows the bowing when expansion of the air bag in extension airbag valve shown in Fig. 1 is in close state crack runner
View.
In this application, all attached drawings are schematical attached drawing, are merely to illustrate the principles of the present invention, and not
It is drawn to scale.
Specific embodiment
The utility model is introduced in more detail below by attached drawing.It should be noted that orientation hereinafter
Term as " upper end ", " lower end " etc. be relative to coming in attached drawing 1 described in, do not play any restrictions.
Fig. 1 shows the structure of the extension airbag valve 100 according to the present utility model for simulated experiment.It was testing
Runner wall 1 is used for simulated formation structure by Cheng Zhong.As shown in Fig. 2, being formed with the crack of thin-and-long between runner wall 1
Runner 14.Elongated slits runner 14 is for simulating actual formation crack class long and narrow space.
As shown in Figure 1, extension airbag valve 100 includes cylinder 8, cylinder 8 is configured to cylinder.The upper end of cylinder 8 according to
It is secondary to be equipped with the first airbag chamber 6 and the second airbag chamber 13.First airbag chamber 6 and the second airbag chamber 13 are configured to cylinder, and gas
The diameter of cylinder 8, the first airbag chamber 6 and the second airbag chamber 13 is arranged to be sequentially reduced.Cylinder 8, the first airbag chamber 6 and the second air bag
Chamber 13 is configured to be connected.The first partition 16 of annular is equipped in the junction of cylinder 8 and the first airbag chamber 6.Meanwhile first
The junction of airbag chamber 6 and the second airbag chamber 13 is equipped with the second partition 17 of annular.Annular partition can play certain barrier
The effect of sealing.
In practical applications, the second airbag chamber 13 is in simulated formation, and with the crack runner 14 in simulated formation
It is connected.In one embodiment, the gap-like axially extended is radially symmetrically equipped on the side wall of the second airbag chamber 13
The opening for the (not shown) gap-like that is open is corresponding with the extending direction of crack runner 14 to place, so that crack runner 14 be made to be connected
It is logical.
According to the utility model, piston 9 is equipped in cylinder 8.It is in down as shown in Figure 1, cylinder 8 is divided by piston 9
The first piston chamber 81 in portion and second piston chamber 82 in top.Piston 9 can be axially moved along cylinder 8, and with 8 inner wall of cylinder
Between form dynamic sealing.
As shown in Figure 1, extension airbag valve 100 further includes piston rod 10, piston rod 10 is configured to hollow structure.Piston rod
10 are arranged in cylinder 8, the first airbag chamber 6 and the second airbag chamber 13, and piston rod 10 is fixedly connected with piston 9, piston rod 10
It can be under the action of piston 9 axially movable.Under original state, piston rod 10 is in contraction state, is located at cylinder 8 and the
In one airbag chamber 6.Piston rod 10 can move stretching under the action of piston 9 and be in the first airbag chamber 6 and the second airbag chamber
In 13, piston rod 10 is made to be in stretching state.In the motion process of piston rod 10, annular first partition 16 and second partition
17 can play certain guiding role.In addition, the top half in piston rod 10 is equipped with air bag 12, it is preferable that air bag 12 wraps
The top half of piston rod 10 is arranged in the formula of wrapping up in.When piston rod 10 is in stretching state, air bag 12 is in the second airbag chamber 13
In, i.e., in the crack runner 14 in fracture formation.At this point, being squeezed and being filled with gas into air bag 12 and expanding air bag 12
Full second airbag chamber 13 closes the gap-like opening on 13 side wall of the second airbag chamber as a result, and realizes closing elongated slits runner
14。
In addition, being fixedly installed annular seal baffle 3 at the middle part of piston rod 10, it is used to be in piston rod 10 and stretches
Connection when doing well, between hermetic barrier the first airbag chamber 6 and the second airbag chamber 13.The diameter of sealing baffle 3 is arranged to small
In the diameter of the first airbag chamber 6, so that piston rod 10 can move in the first airbag chamber 13, and the diameter of sealing baffle 3
Greater than the junction that the first airbag chamber 6 and the second airbag chamber 13 are set annular second partition 17 inner ring diameter, with
When piston rod 10 being made to be in stretching state, sealing baffle 3 contacts with second partition 17 and forms sealing, to reach parting seal
The purpose of first airbag chamber 6 and the second airbag chamber 13, so that air bag 12 sufficiently expands in the second airbag chamber 13.
According to the utility model, it is equipped with air bag gas injection outlet 2 on the side wall equipped with air bag 12 of piston rod 10, is used for
It is inflated into air bag 2 and makes its expansion, to achieve the purpose that close elongated slits runner 14.When air bag 12 is in the second airbag chamber
When in 13, air bag gas injection outlet 2 is also in the second airbag chamber.In one embodiment, air bag gas injection outlet 2 is arranged in piston
The medium position of air bag 12 on bar 10, can effectively improve the efficiency of 12 inflation of air bag in this way.Meanwhile in piston rod 10
On be additionally provided with air bag gas injection entrance 11, when air bag 12 is in the second airbag chamber 13, air bag gas injection entrance 11 is in the first air bag
In chamber 6.First airbag chamber 6 is connected with gas pressurizer 5 by first gas pipeline 71, and gas is equipped on first gas pipeline 71
Capsule switch 4.First gas pipeline 71 is connected on the side wall of the first airbag chamber 6, and when being in stretching state with piston rod 10
Air bag gas injection entrance 11 is corresponding.Gas can be injected into the first airbag chamber 6 by first gas pipeline 71 by opening air bag switch 4
Body, gas enter the inside of piston rod 10 by the air bag gas injection entrance 11 on piston rod 10, and by air bag gas injection outlet 2 into
Enter to make in air bag 12 it to expand and be crowded with the second airbag chambers 13, as a result, dead-end fracture runner 14.
As shown in Figure 1, first piston chamber 81 and second piston chamber 82 in cylinder 8 respectively by second gas pipeline 72 with
Gas pressurizer 5 is connected.Telescoping switch 7 is equipped in second gas pipeline 72.When needing to close elongated slits runner 14, control
Telescoping switch 7 processed is connected to gas pressurizer 5 with first piston chamber 81, injects gas into first piston chamber 81 and makes piston
9 move upwards, and compress second piston chamber 82, and the stretching of piston rod 10 is driven to be at stretching state, so that air bag 12
Into in the crack runner 14 of fracture formation.At this point, sealing baffle 3 and second partition 17 are in close contact, so that the first airbag chamber 6
With 13 sealed separation of the second airbag chamber, then, the air bag switch 4 opened in first gas pipeline 71 is infused into the first airbag chamber 6
Entering gas, air pressure is injected into air bag 12 by piston rod 10 makes the expansion of air bag 12 be crowded with the second airbag chambers 13, hereby it is achieved that
Close elongated slits runner 14.During this operation, especially it is noted that the operation order of air bag switch 4 and telescoping switch 7,
To reach ideal effect.When needing to open elongated slits runner 14, adjustment air bag switch 4 shrinks air bag 12, then,
Control telescoping switch 7 is connected to gas pressurizer 5 with second piston chamber 82, injects gas into second piston chamber 82 and makes piston
9 move downward, and compress first piston chamber 81, and piston rod 10 is driven to retract, until piston rod returns to reset condition, are in first
In airbag chamber 6 and plunger shaft, piston rod 10 is avoided to influence the flowing of fluid in elongated slits runner 14.
In the present embodiment, gas pressurizer 5 is connected by first gas pipeline 71 with the first airbag chamber 6, so as to
Air pressure is provided to air bag 12, realizes the expansion of air bag 12.Meanwhile gas pressurizer 5 pass through the second gas pipeline 72 and cylinder 8 the
One plunger shaft 81 is connected with second piston chamber 82, air pressure is provided to plunger shaft, to realize the axial movement of piston rod 10.Gas
Voltage-stablizer 5 can provide air pressure to air bag 12 and provide air pressure to plunger shaft, be realized by common gas voltage-stablizer 5 to work
The control of stopper rod 10 and air bag 12, control precision is high, and improves the working efficiency of extension airbag valve 100.
The course of work of brief description extension airbag valve 100 according to the present utility model.Before use, firstly, checking true
It protects extension airbag valve 100 and is in contraction state, air bag switch 4 is in close state, and other switches are in closed state.
As shown in Fig. 2, air bag 12 is in contraction state when original state, thus when crack runner it is in the open state.Later, it opens
Gas pressurizer 5, to guarantee to have enough pressure control air bag rapid expandings and shrink, air pressure is steady in guarantee application process
It is fixed.In the operating process of closing elongated slits runner 14, firstly, control telescoping switch 7 makes gas pressurizer 5 be connected to cylinder 8
In the lower part in piston 9 first piston chamber 81, make air pressure push piston 9 move upwards, until be arranged in piston rod 10
On air bag 12 be all introduced into the second airbag chamber 13 and enter in crack runner 14.Meanwhile sealing baffle 3 separates the first gas
Blister cavities 6 and the second airbag chamber 13.Later, opening air bag switch 4 enters air pressure inside piston rod 10 by air bag inlet 11,
Then, it is flowed into air bag 12 from air bag gas injection outlet 2 so that the second airbag chamber 13 is crowded in the expansion of air bag 12.As shown in figure 3, air bag
The second airbag chamber 13 is crowded in 12 expansions, hereby it is achieved that the purpose of closing elongated slits runner 14.Before the opening of air bag switch 4,
Elongated slits runner 14 is circulation, opens the moment of air bag switch 4, and runner is closed rapidly.When closing air bag switch 4, deflate
Channel is opened rapidly, achievees the purpose that be opened and closed rapidly, and after adjustment air bag switch 4 shrinks air bag 12, adjustment telescoping switch 7 makes gas
The second piston chamber 82 on 9 top of piston in pressure connection cylinder 8, while first piston chamber 81 is deflated, and makes piston 9 rapidly to moving down
It is dynamic, so that air bag 12 is retracted the first airbag chamber 6, return to initial retracted mode, influences crack runner 14 to avoid piston rod 10
Circulation and the flowing of fluid.The air bag in extension airbag valve 100 is controlled by control air bag switch 4 and telescoping switch 7 as a result,
12 inflation/deflations, to realize rapidly opened and closed elongated slits runner 14.In operation, especially it is noted that air bag switch 4 and stretching
The operation order of contracting switch 7, to reach ideal effect.
Extension airbag valve 100 according to the present utility model passes through the movement of pressure control piston 9 and piston rod 10,
To realize the entrance of air bag 12 or exit the crack runner 14 in simulated formation, and realized quickly using 12 inflation/deflation of air bag
It is opened and closed elongated slits runner 14.Extension airbag valve 100 controls the movement of piston rod 10 by telescoping switch 7 and air bag switch 4
And the air pressure in air bag 12, control precision is high, and flexible and convenient operation is high-efficient.Meanwhile extension airbag valve 100 structure letter
Single, practicability is high, can effectively ensure that rapidly opening and closing elongated slits runner 14, and meet that experimental provision runner is opened and closed rapidly wants
It asks.In addition, extension airbag valve 100 further includes gas pressurizer 5, gas pressurizer 5 can effectively ensure that extension airbag valve
Air pressure in 100 pipeline systems, so that guarantee opens or closes the accuracy of crack runner 14.Its gas pressurizer 5 can be given
Air bag 12 provides air pressure, and can provide air pressure to plunger shaft, is realized by common gas voltage-stablizer 5 to piston rod 10 and air bag 12
Control, control precision is high, and improves the working efficiency of extension airbag valve 100.
Finally it should be noted that the foregoing is merely the preferred embodiments of the utility model, do not constitute to this
Any restrictions of utility model.Although the utility model is described in detail referring to foregoing embodiments, for
For those skilled in the art, it can still modify to technical solution documented by previous embodiment, or to wherein
Some technical characteristics are equivalently replaced.Within the spirit and principle of the utility model, it is made it is any modification, equally replace
It changes, improve, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of extension airbag valve (100) for simulated experiment is used to open or closes the stream of the crack in simulated formation
Road (14), including：
Cylinder (8) is equipped with piston (9) in the cylinder；
The hollow piston rod being fixedly connected with the piston, the piston rod can generate axial fortune under the action of the piston
It is dynamic；
The air bag (12) on the piston rod is arranged in packaging type, and the air bag can be radially expanded by inflating realization；
Wherein, the piston rod can be such that the air bag enters or exit the crack runner by being axially moved, and described
Air bag can close the crack runner after entering the crack runner by inflation.
2. extension airbag valve according to claim 1, which is characterized in that the extension airbag valve further include with it is described
Cylinder connection the first airbag chamber (6) and the second airbag chamber (13), second airbag chamber be in the simulated formation and with
The crack runner connection.
3. extension airbag valve according to claim 2, which is characterized in that be equipped with air bag on the side wall of the piston rod
Gas injection entrance (11), wherein the air bag gas injection entrance is in described first when the air bag is in second airbag chamber
In airbag chamber.
4. extension airbag valve according to claim 3, which is characterized in that be additionally provided with gas on the side wall of the piston rod
Capsule gas injection exports (2), makes its expansion for inflating into the air bag, wherein when the air bag is in second airbag chamber
When, the air bag gas injection outlet is also in second airbag chamber.
5. the extension airbag valve according to any one of claim 2 to 4, which is characterized in that in the piston rod
Portion is equipped with sealing baffle (3), be used for after the air bag enters the crack runner the first airbag chamber described in hermetic barrier with
Connection between second airbag chamber.
6. the extension airbag valve according to any one of claim 2 to 4, which is characterized in that the extension airbag valve
It further include gas pressurizer (5), the gas pressurizer is connected by first gas pipeline (71) with first airbag chamber.
7. extension airbag valve according to claim 6, which is characterized in that be equipped with air bag in the first gas pipeline
It switchs (4).
8. extension airbag valve according to claim 6, which is characterized in that the cylinder is divided into first and lived by the piston
Fill in chamber (81) and second piston chamber (82), the first piston chamber and second piston chamber pass through respectively second gas pipeline (72) and
The gas pressurizer is connected.
9. extension airbag valve according to claim 8, which is characterized in that be equipped in the second gas pipeline flexible
It switching (7), the telescoping switch is used to that the gas pressurizer to be made to be connected to the first piston chamber or second piston chamber, so that
The piston rod generates axial movement, realizes that the air bag enters or exit the crack runner.
10. the extension airbag valve according to any one of claim 2 to 4, which is characterized in that in first airbag chamber
The first partition (16) and second partition (17) of annular are respectively equipped with the junction of the cylinder and the second airbag chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820428753.6U CN208107214U (en) | 2018-03-28 | 2018-03-28 | Extension airbag valve for simulated experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820428753.6U CN208107214U (en) | 2018-03-28 | 2018-03-28 | Extension airbag valve for simulated experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208107214U true CN208107214U (en) | 2018-11-16 |
Family
ID=64121982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820428753.6U Active CN208107214U (en) | 2018-03-28 | 2018-03-28 | Extension airbag valve for simulated experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208107214U (en) |
-
2018
- 2018-03-28 CN CN201820428753.6U patent/CN208107214U/en active Active
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