CN207513585U - Underground end hydraulic selector - Google Patents
Underground end hydraulic selector Download PDFInfo
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- CN207513585U CN207513585U CN201721679957.9U CN201721679957U CN207513585U CN 207513585 U CN207513585 U CN 207513585U CN 201721679957 U CN201721679957 U CN 201721679957U CN 207513585 U CN207513585 U CN 207513585U
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- push rod
- casing
- sliding sleeve
- ball seat
- assembly
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Abstract
The utility model discloses a kind of underground end hydraulic selectors, purpose is to solve under the conditions of the prior art of field of petroleum exploitation, it is limited by the horizontal segment of horizontal well or the deep-well section condition of high angle hole, switch control can not be carried out to down-hole pipe tag end test device, the problem of test oil bottom situation.The device includes housing, ball seat hydraulic sliding sleeve sub-assembly, connecting plate, push rod, switching mechanism, and switching mechanism includes spool, spool control spring, casing.In view of the drawbacks of the prior art, the utility model utilizes existing underground hydraulic pressure control technology, does not change existing oil well operation specification, it is novel to provide a kind of completely new underground（It expands）Hydraulic selector.The utility model can be realized and progress break-make control is switched to down-hole oil tube tag end test device, and do not influence the normal operation of oil well under unregulated power drive environment.The utility model is skillfully constructed, reasonable design, is the completely new exploration to shaft bottom hydraulic selector structure, and the detection for oil well has remarkable progress.
Description
Technical field
The present invention relates to field of petroleum exploitation, apply the switching control techniques in down-hole oil tube tag end test device.
Background technology
Logger and connecting cable are sent to shaft bottom, needle by the deep-well section of horizontal segment or high angle hole for horizontal well
Oil well bottom situation is tested, is always the problem in industry.
In the prior art, the control hydraulic selector for down-hole pipe end equipment is there is no, it is no existing with reference to technology, knot
Structure and application.For this purpose, the present invention provides a kind of completely new end hydraulic selector, belong to the new opplication of underground control technology and new
Structure has preferable application prospect.
Invention content
The goal of the invention of the present invention is：Under the conditions of the prior art of field of petroleum exploitation, by the horizontal segment of horizontal well
Or the limitation of the deep-well section condition of high angle hole, switch control can not be carried out to down-hole pipe tag end test device, tests oil well
Bottom situation, for this purpose, the present invention provides a kind of underground end hydraulic selector.In view of the drawbacks of the prior art, the present invention is using now
Some underground hydraulic pressure control technologies do not change existing oil well operation specification, and it is novel to provide a kind of completely new underground（It expands）Hydraulic pressure
Switch.The present invention can under unregulated power drive environment, realize to down-hole oil tube tag end test device switch carry out break-make control,
And do not influence the normal operation of oil well.Present inventive concept is ingenious, reasonable design, is the completely new spy to shaft bottom hydraulic selector structure
Rope, the detection for oil well have remarkable progress.
To achieve these goals, the present invention adopts the following technical scheme that：
Underground end hydraulic selector, including housing, ball seat hydraulic sliding sleeve sub-assembly, push rod, switching mechanism, switching mechanism packet
Spool, spool matched with spool control spring, casing are included, casing is arranged on push rod；
Ball seat hydraulic sliding sleeve sub-assembly is arranged on one end of housing and the opposite housing of ball seat hydraulic sliding sleeve sub-assembly energy is limiting
Moved in set a distance S, ball seat hydraulic sliding sleeve sub-assembly be connected with push rod and push rod can by ball seat hydraulic sliding sleeve sub-assembly away from
Casing is passed to from S；
Housing is made of inner and outer tubes, and runner is equipped between inner tube and outer tube, and switching mechanism is arranged on the both ends of runner
And switching mechanism can carry out runner switch control, between switching mechanism be annular seal space in runner, the push rod can trigger casing
Displacement distance S makes spool mobile to case inside and opens runner connection inner tube, outer tube.
The sphere is steel ball.
The inner walls are provided with the position limiting structure for being limited to ball seat hydraulic sliding sleeve sub-assembly.
The push rod includes one section of push rod, two sections of push rod, and ball seat hydraulic sliding sleeve sub-assembly passes through one section of connecting plate and push rod
It is connected with first casing and ball seat hydraulic sliding sleeve sub-assembly can pushes first casing to move by one section of connecting plate and push rod,
First casing is connected by two sections of push rod with second casing and first casing can push second set for two sections by push rod
Pipe and first sleeve synchronizing moving.
Ball seat hydraulic sliding sleeve sub-assembly includes hydraulic sliding sleeve, the sphere being arranged in hydraulic sliding sleeve, sphere resetting spring, institute
It states and counterbore is provided in hydraulic sliding sleeve and sphere can be pressed in counterbore bottom hole by sphere resetting spring.
Connecting plate is further included, the both sides of connecting plate are connected respectively with ball seat hydraulic sliding sleeve sub-assembly, push rod, in the housing
Side is provided with the hole coordinated with connecting plate.
It is provided in the hole and the matched pressure control spring of connecting plate.
The push rod, switching mechanism form switch main body, and the switch main body both ends are respectively arranged with pressure control spring
And pressure control spring can balance the thrust of ball seat hydraulic sliding sleeve sub-assembly transmission.
For foregoing problems, the present invention provides a kind of underground end hydraulic selector.The present invention is a kind of only inside and outside in underground
Under the premise of pressure being provided between tube wall, and in very limited space（Between oil pipe inside and outside wall）It is interior, open oil pipe tag end test dress
Put flow channel switch.
The course of work of the device is as follows：In the case of the device is in normal operation（The oil pumping operation i.e. on well）, such as
Shown in Fig. 1, spool makes the flow channel switch that annular seal space is connect with oil pipe be in "Off" under the action of casing, pressure control spring
State；As shown in Fig. 2, when applying a control pressure P on wellControl, sphere under the effect of the pressure, prevents fluid by oil pipe,
Action of hydraulic force is made hydraulic sliding sleeve to be caused to be moved by force to shaft bottom direction, so as to push push rod and casing to well in hydraulic sliding sleeve
Bottom direction is moved, and spool is finally made to lose the support of casing, and spool is under the action of spool controls spring, to oily in-pipe,
Annular seal space runner, and the reset movement of spool automatic locking casing are opened, so as to ensure that runner continues opening state, completes switch
The control function of " opening ".
In the present invention, pressure control spring can be balanced as caused by control pressure and underground work random perturbation pressure
Malfunction ensures precise control.In the present invention, when not applying operating pressure, switch is in normally off；It is pre- when applying
If after operating pressure, switch accurate open；After removing operating pressure, continue to maintain a normally open state.Structure-based improvement, this hair
It is bright to close or open, the normal operation of oil well is not influenced.
Structure-based design, the present invention efficiently solve the problems, such as follows：1）To being in down-hole pipe end（Under ball seat
Side）Test device carry out switch control；2）It overcomes switch in the prior art and the state of half-open semi-closure occurs；3）It overcomes existing
Have during each spool gradually acts opening with the increase of pressure in technology, pressure switch wider range causes each spool
It cannot be guaranteed that synchronous the defects of opening；4）The present invention controls spring using spool and spool, while annular seal space runner is opened,
The reset of locking casing, the reliable state for ensureing switch and remaining on, control construction of switch is more compact rationally, eliminates special
Locking system.
In the present invention, when applying a control pressure P on wellControlWhen, ball seat stress makes sliding sleeve move downward S, and push rod pushes set
Pipe also moves S, and spool is caused to be acted under the action of spool controls spring, opens sealing channel.The present invention is by common hydraulic pressure list
It is combined together to valve and hydraulic sliding sleeve are ingenious, that is, enough hydraulic pressure can be obtained, and hydraulic pressure can be utilized to slide by meeting the device of front end
Set switchs the control that oil pipe tag end test device is transferred to along the power of oil pipe axis direction and moving, and completes underground unregulated power and drives
Switch control under dynamic control, high temperature and pressure, complicated geological environment.The present invention can be in the horizontal segment or High angle of oil well horizontal well
The deep-well section of well in the environment of unregulated power driving, is realized controllable to the switch of oil pipe tag end test device so that downhole data is adopted
Collection is more accurate, reliable.Meanwhile down-hole switch of the device for a Remote Hydraulic control, it connect with oil pipe, is conveyed by oil pipe,
It can be used in straight well, horizontal well, there is higher application value.In addition, structure-based improvement, underground hydraulic pressure plunger switch with
Self-lock protection structure is integrally designed, and pilot process is not present in switch motion, is phase step type, self-locking after action, there is no half-open shapes
State.
Further, structure-based improvement, the device of the invention push axial push rod by ball seat hydraulic sliding sleeve sub-assembly
Movement, can set multiple switch on the operating path of push rod, and realization opens simultaneously, and respectively realizes different control functions,
Meet corresponding testing requirement, realize that other switches of the hydraulic plunger switch in underground control application extension.
The present invention compensates for shaft bottom detection instrument application blank, can effectively improve oil well detection efficiency and effect, underground inspection
Measured data is more accurate, comprehensive.In addition, production is combined together by the present invention with detection, on-line checking is realized, is effectively promoted
The efficiency of oil well operation reduces operating cost.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the schematic diagram when present invention is closed.
Fig. 2 is the status diagram when present invention opens.
Fig. 3 is the fluid flow state schematic diagram after the hydraulic selector of the present invention is opened.
It is marked in figure：1st, housing, 2, sphere resetting spring, 3, sphere, 4, sliding sleeve, 5, connecting plate, 6, push rod, 7, pressure control
Spring processed, 8, casing, 9, spool control spring, 10, spool, 11, runner.
Specific embodiment
All features or disclosed all methods disclosed in this specification or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification, unless specifically stated, can be equivalent by other or with similar purpose
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
.
Embodiment 1
The underground end hydraulic selector of the present embodiment includes housing, ball seat hydraulic sliding sleeve sub-assembly, connecting plate, push rod, opens
Mechanism is closed, switching mechanism includes spool, spool matched with spool control spring, casing, and casing is arranged on push rod.Ball seat
Hydraulic sliding sleeve sub-assembly includes hydraulic sliding sleeve, the sphere being arranged in hydraulic sliding sleeve, sphere resetting spring, is set in hydraulic sliding sleeve
There is counterbore and sphere can be pressed in counterbore bottom hole by sphere resetting spring.It is combined respectively with ball seat hydraulic sliding sleeve the both sides of connecting plate
Part, push rod are connected, and case inside is provided with the hole coordinated with connecting plate；It is provided in hole and is controlled with the pressure of connecting plate phase separation
Spring.
In the present embodiment, ball seat hydraulic sliding sleeve sub-assembly is arranged on one end of housing, and ball seat hydraulic sliding sleeve sub-assembly passes through
Connecting plate is connected with push rod, and inner walls are then provided with the limiting knot for being limited to ball seat hydraulic sliding sleeve sub-assembly
Structure.Housing is made of inner and outer tubes, and runner is equipped between inner tube and outer tube, and switching mechanism is arranged on the both ends of runner；Runner
It is annular seal space between interior switching mechanism.Push rod, switching mechanism form switch main body, and switch main body front end is provided with pressure control bullet
Spring, pressure control spring can balance the thrust of ball seat hydraulic sliding sleeve sub-assembly transmission.In the present embodiment, steel ball can be selected in sphere.
In the structure, switching mechanism can carry out switch control to runner；Further, ball seat hydraulic sliding sleeve sub-assembly can be opposite
Housing moves in restriction distance S, and the distance S of ball seat hydraulic sliding sleeve sub-assembly can then be passed to casing, push rod energy by push rod
Triggering casing displacement distance S makes spool mobile to case inside and opens runner formation convection current.
Further, the push rod of the present embodiment includes one section of push rod, two sections of push rod, and ball seat hydraulic sliding sleeve sub-assembly passes through connection
One section of plate and push rod are connected with first casing and ball seat hydraulic sliding sleeve sub-assembly pushes first by one section of connecting plate and push rod
The movement of a casing, first casing is connected by two sections of push rod with second casing and first casing passes through two sections of push rod and push
Second casing and first sleeve synchronizing moving.In the structure, two sections of push rod can be several, you can push rod is formed N
Section（N is natural number, and >=1）.
The course of work of the device is as follows：In the case of the device is in normal operation（The oil pumping operation i.e. on well）, such as
Shown in Fig. 1, spool makes the flow channel switch that annular seal space is connect with oil pipe be in "Off" under the action of casing, pressure control spring
State；As shown in Fig. 2, when applying a control pressure P on wellControl, sphere under the effect of the pressure, prevents fluid by oil pipe,
Action of hydraulic force is made hydraulic sliding sleeve to be caused to be moved by force to shaft bottom direction, so as to push push rod and casing to well in hydraulic sliding sleeve
Bottom direction is moved, and spool is finally made to lose the support of casing, and spool is under the action of spool controls spring, to oily in-pipe,
Annular seal space runner, and the reset movement of spool automatic locking casing are opened, so as to ensure that runner continues opening state, completes switch
The control function of " opening ".Finally as shown in figure 3, in the state opened.
The invention is not limited in aforementioned specific embodiments.The present invention, which expands to, any in the present specification to be disclosed
The step of new feature or any new combination and any new method or process disclosed or any new combination.
Claims (12)
1. underground end hydraulic selector, which is characterized in that including housing, ball seat hydraulic sliding sleeve sub-assembly, push rod, switching mechanism,
Switching mechanism includes spool, spool matched with spool control spring, casing, and casing is arranged on push rod；
Ball seat hydraulic sliding sleeve sub-assembly be arranged on one end of housing and ball seat hydraulic sliding sleeve sub-assembly can opposite housing limit away from
From being moved in S, ball seat hydraulic sliding sleeve sub-assembly is connected with push rod and push rod can pass the distance S of ball seat hydraulic sliding sleeve sub-assembly
Pass casing；
Housing is made of inner and outer tubes, and runner is equipped between inner tube and outer tube, and switching mechanism is arranged on the both ends of runner and opens
Runner can be carried out switch control by closing mechanism, between switching mechanism be annular seal space in runner, the push rod can trigger casing movement
Distance S makes spool mobile to case inside and opens runner connection inner tube, outer tube.
2. underground end hydraulic selector according to claim 1, which is characterized in that the inner walls are provided with for ball
The position limiting structure that seat hydraulic sliding sleeve sub-assembly is limited.
3. underground end hydraulic selector according to claim 1, which is characterized in that the push rod, switching mechanism form switch
Main body, the switch main body both ends are respectively arranged with pressure control spring and pressure control spring can balance ball seat hydraulic sliding sleeve group
The thrust that component transmits.
4. according to any one of the claim 1-3 underground end hydraulic selectors, which is characterized in that ball seat hydraulic sliding sleeve sub-assembly
Including hydraulic sliding sleeve, the sphere being arranged in hydraulic sliding sleeve, sphere resetting spring, counterbore and ball are provided in the hydraulic sliding sleeve
Sphere can be pressed in counterbore bottom hole by body resetting spring.
5. underground end hydraulic selector according to claim 4, which is characterized in that the sphere is steel ball.
6. according to any one of claim 1-3,5 underground end hydraulic selector, which is characterized in that the push rod includes push rod
One section, two sections of push rod, ball seat hydraulic sliding sleeve sub-assembly is connected by one section of push rod with first casing and ball seat hydraulic sliding sleeve group
Component pushes first casing to move by one section of push rod, and first casing is connected and the by two sections of push rod with second casing
One casing can pass through push rod two sections of promotions, second casing and first sleeve synchronizing moving.
7. underground end hydraulic selector according to claim 4, which is characterized in that the push rod includes one section of push rod, push rod
Two sections, ball seat hydraulic sliding sleeve sub-assembly is connected by one section of push rod with first casing and ball seat hydraulic sliding sleeve sub-assembly is by pushing away
One section of bar pushes first casing movement, and first casing is connected by two sections of push rod with second casing and first casing energy
Second casing and first sleeve synchronizing moving are pushed for two sections by push rod.
8. according to any one of claim 1-3,5 underground end hydraulic selector, which is characterized in that further include connecting plate, even
The both sides of fishplate bar are connected respectively with ball seat hydraulic sliding sleeve sub-assembly, push rod, and the case inside is provided with what is coordinated with connecting plate
Hole.
9. underground end hydraulic selector according to claim 4, which is characterized in that further include connecting plate, the both sides of connecting plate
It is connected respectively with ball seat hydraulic sliding sleeve sub-assembly, push rod, the case inside is provided with the hole coordinated with connecting plate.
10. underground end hydraulic selector according to claim 8, which is characterized in that be provided in the hole and connecting plate phase
The pressure control spring of cooperation.
11. underground end hydraulic selector according to claim 8, which is characterized in that the push rod includes one section of push rod, push rod
Two sections, ball seat hydraulic sliding sleeve sub-assembly is by connecting plate, one section of push rod is connected with first casing and ball seat hydraulic sliding sleeve combines
Part can push first casing to move by one section of connecting plate and push rod, and first casing passes through two sections of push rod and second casing
It is connected and first casing can be by push rod two sections of promotions, second casing and first sleeve synchronizing moving.
12. according to the underground end hydraulic selector of claim 9 or 10, which is characterized in that the push rod include one section of push rod,
Two sections of push rod, ball seat hydraulic sliding sleeve sub-assembly is by connecting plate, one section of push rod is connected with first casing and ball seat hydraulic sliding sleeve
Sub-assembly can push first casing to move by one section of connecting plate and push rod, and first casing passes through two sections of push rod and second
Casing is connected and first casing can be by push rod two sections of promotions, second casing and first sleeve synchronizing moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679957.9U CN207513585U (en) | 2017-12-06 | 2017-12-06 | Underground end hydraulic selector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679957.9U CN207513585U (en) | 2017-12-06 | 2017-12-06 | Underground end hydraulic selector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513585U true CN207513585U (en) | 2018-06-19 |
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ID=62543715
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721679957.9U Active CN207513585U (en) | 2017-12-06 | 2017-12-06 | Underground end hydraulic selector |
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| Country | Link |
|---|---|
| CN (1) | CN207513585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083617A (en) * | 2017-12-06 | 2018-12-25 | 绵阳固美科技有限公司 | Underground end hydraulic selector |
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2017
- 2017-12-06 CN CN201721679957.9U patent/CN207513585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083617A (en) * | 2017-12-06 | 2018-12-25 | 绵阳固美科技有限公司 | Underground end hydraulic selector |
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