CN206737885U - A kind of presetting system adjustable choke - Google Patents
A kind of presetting system adjustable choke Download PDFInfo
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- CN206737885U CN206737885U CN201720570492.7U CN201720570492U CN206737885U CN 206737885 U CN206737885 U CN 206737885U CN 201720570492 U CN201720570492 U CN 201720570492U CN 206737885 U CN206737885 U CN 206737885U
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- valve rod
- control device
- adjustable choke
- control board
- valve seat
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Abstract
The utility model provides a kind of presetting system adjustable choke, launch in the preset seating nipple being set in advance in oil pipe, including dynamic control device, upper shell, slips, slip spider, lower house, the valve seat being sequentially connected from top to bottom, upper shell is provided with gas outlet, packing element is arranged with outside valve seat, valve rod is provided with above valve seat, valve rod upper end is connected with dynamic control device, valve rod lower end is conehead and valve rod can move up and down vertically in the case where dynamic control device drives, and the dynamic control device and upper shell are tightly connected；Dynamic control device receives the instruction that ground host computer is sent, and axially upwards or the position specified is moved downwardly to according to instruction tape ovable valve stem.The presetting system adjustable choke, by the linear reciprocating motion that the positive and negative rotation motion of motor is converted to flow nipple valve rod, the reversible regulation of real time bidirectional is carried out to aperture between valve seat and valve rod conehead, pit shaft well head pressure accurately control and yield regulation and control are realized, improve the ability that pit shaft air-flow carries hydrops.
Description
Technical field
The utility model belongs to downhole choke technical field after gas well is gone into operation, and in particular to a kind of adjustable throttling of presetting system
Device.
Background technology
Downhole choke technology is exactly that the flow controller of certain flow nipple size is put in a certain depth oil pipe inner seat in underground, realizes well
Reducing pressure by regulating flow in cylinder, fluid-flow rate is improved, play a part of carrying wellbore effusion, so as to realize the regulation of gas well yield.
According to Field Research, Changqing oilfields Soviet Union Sulige gas field is that current domestic underground throttle device applies most regions, has been tired out
Product application well about more than 9000, but for a long time, Soviet Union's Sulige gas field generally uses movable and preset with flow nipple
The purely mechanic underground throttle device of formula.Such flow controller can not adjust the size in flow nipple footpath in real time, it is necessary to by closing well and take rope
Suo Zuoye changes various sizes of oil nozzle to realize different grades of throttling function, so that gas well yield can not be adjusted in time, reaches
To science with production, manufacturing schedule is had an effect on, increases operating risk.
At the same time, the throttling valve abrasion-resistance of down-hole mechanical formula flow controller is poor, after one section of throttle time, throttling
Valve easily carries gravel erosion by air-flow, and valve aperture changes, it is impossible to meets downhole choke requirement well.
Utility model content
The purpose of this utility model is the technical problem for overcoming the flow nipple aperture of flow controller in the prior art not adjust.
Therefore, the utility model provides a kind of presetting system adjustable choke, launch pre- in oil pipe to being set in advance in
Put in seating nipple, including dynamic control device, upper shell, slips, slip spider, lower house, the valve seat being sequentially connected from top to bottom, it is described
Upper shell is provided with gas outlet, and packing element is arranged with outside the valve seat, valve rod is provided with above the valve seat, the valve rod upper end is with moving
Device connection is controlled, valve rod lower end is conehead and valve rod can move up and down vertically in the case where dynamic control device drives, the dynamic control device
It is tightly connected with upper shell；
The dynamic control device receives the instruction that ground host computer is sent, and is transported axially upwards or downwards according to instruction tape ovable valve stem
Move to the position specified.
The dynamic control device includes motor, control board, housing and signal receiver, the motor and control board
In housing, the signal receiver connects with housing upper end；
The valve rod upper end connects motor, motor electrical connection control board, and control board is connected with signal receiver,
The signal receiver receives the instruction that ground host computer is sent and is transferred to control board, is sent and believed by control board
Number to motor with the steering of controlled motor.
Bottom filters are connected with the valve seat.
Also include signal transmission charger, the signal transmission charger is connected with end interface on signal receiver, described
Signal transmits charger and acted on by electromagnetic induction to control board offer electric energy.
The upper end of the housing is provided with fishing neck, and the fishing neck upper end is connected with signal receiver, is set in the fishing neck
There is the signal transmission passage of control board and signal receiver electrical connection.
The upper shell is provided with lock ring, and the lock ring connects with slips upper end.
The valve seat, valve rod, slip spider, slips, fishing neck, signal receiver body use 35CrMo.
The conehead hard alloy tungsten carbide YG8 materials, thickness are not less than 4mm.
The beneficial effects of the utility model are：
This presetting system adjustable choke provided by the utility model, by the way that the positive and negative rotation motion of motor is converted to
The linear reciprocating motion of flow nipple valve rod, the reversible regulation of real time bidirectional is carried out to aperture between valve seat and valve rod conehead, realizes well
Accurately control and the yield regulation and control of cylinder well head pressure, improve the ability that pit shaft air-flow carries hydrops.
The valve rod conehead designed using high-abrasive material has very high abrasion-resistance, when reducing that valve rod conehead is long in pit shaft
Between use washed out damage frequency, and then reduce failure of the underground throttle device in underground and damage；Pit shaft can need not be salvaged, no
Dismantled with changing, without wireline operation, saved salvaging cost and replacing construction, drastically increased the work of underground throttle device
Performance and used life, practical, application effect is notable.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is superstructure schematic diagram of the present utility model；
Fig. 2 is substructure schematic diagram of the present utility model.
In figure：1st, bottom filters；2nd, packing element；3rd, valve seat；4th, valve rod；5th, slip spider；6th, slips；7th, lock ring；8th, motor；
9th, control board 9；10th, fishing neck；11st, signal receiver；12nd, gas outlet；13rd, upper shell；14th, lower house.
Embodiment
Embodiment 1：
A kind of presetting system adjustable choke is present embodiments provided, is launched to the preset seating nipple being set in advance in oil pipe
Dynamic control device, upper shell 13, slips 6, slip spider 5, lower house 14, valve seat 3 interior, including be sequentially connected from top to bottom, it is described
Upper shell 13 is provided with gas outlet 12, and packing element 2 is arranged with outside the valve seat 3, and the top of valve seat 3 is provided with valve rod 4, the valve rod
4 upper ends are connected with dynamic control device, and the lower end of valve rod 4 is conehead and valve rod 4 can move up and down vertically in the case where dynamic control device drives, institute
State control device and upper shell 13 is tightly connected；
The dynamic control device receives the instruction that ground host computer is sent, according to instruction tape ovable valve stem 4 axially upwards or downwards
Move to the position specified.
Operation principle：Dynamic control device band ovable valve stem 4 axially moves, when band ovable valve stem 4 moves downward, valve seat 3 and valve
Bore clearance is gradually reduced between the conehead of bar 4, is reduced to specified Numerical Aperture, when band ovable valve stem 4 moves upwards, valve seat 3 and valve
Bore clearance gradually increases between the conehead of bar 4, increases to specified Numerical Aperture, so as to alternately realize hole between valve seat 3 and the conehead of valve rod 4
The regulation change in footpath gap, to realize the regulation of throttle diameter.
Use process：Before gas well carries out down-hole pressure control, Flow-rate adjustment, according to well head pressure, the suitable section of flow selection
The presetting system underground adjustable choke in stem bar aperture, presetting system underground adjustable choke is launched into work by piano wire band afterwards
Tool is launched to being set in advance in the preset seating nipple of a certain depth of oil pipe, pressurization lower slipses 6, packing element 2 and preset work
Make cylinder contact grappling, sealing, realize reliable setting, you can progress gas well closing well-drive a well alternately production operation.Natural gas is from valve seat
3 lower ends enter, and enter annular space by gas outlet 12.
If after exploiting a period of time, with the reduction of strata pressure, well head yield declines, and well head pressure reduces, and illustrates to need
Downhole-choke aperture adjustment is carried out, throttle diameter can be now adjusted by dynamic control device, be reduced to specified aperture
Numerical value, increase pressure.
Embodiment 2：
On the basis of embodiment 1, a kind of presetting system adjustable choke is present embodiments provided, the dynamic control device includes
Motor 8, control board 9, housing and signal receiver 11, the motor 8 and control board 9 are in housing, the letter
Number receiver 11 connects with housing upper end；
The upper end of valve rod 4 connects motor 8, and motor 8 electrically connects control board 9, control board 9 and signal receiver
11 connections, the signal receiver 11 receives the instruction that ground host computer is sent and is transferred to control board 9, by controlling electricity
Road plate 9 sends a signal to steering of the motor 8 with controlled motor 8.
Also include signal transmission charger, the signal transmission charger is connected with end interface on signal receiver 11, institute
State signal transmission charger and provide electric energy to control board 9 by electromagnetic induction effect.
When needing to carry out downhole-choke aperture adjustment, now charger can be transmitted by piano wire band signal and enter well,
The electric energy that signal is transmitted to charger by electromagnetic induction effect is charged to control board 9 by electromagnetic induction action transport,
Ensure that in adjustment aperture control board 9 has electricity, synchronous signal receiver 11 passes on aperture adjustment instruction, carry out valve seat 3 with
The regulation in aperture between the conehead of valve rod 4, adjust to the Numerical Aperture of signal instruction setting, complete aperture adjustment.Adjust in flow controller aperture
After the completion of section, signal transmission is rushed by electrical equipment by piano wire and taken out from underground, check whether signal transmission charger is intact, really
When guarantor is adjusted again, signal transmission charger normal use.
In this example, bottom filters 1 are connected with the valve seat 3.As shown in Figure 2.Bottom filters 1 are used to filter
The gravel that air-flow carries, avoids the erosion to the conehead of valve rod 4, and bottom filters 1 are connected with valve seat 3 by thread seal, so as to
In dismounting, replacing and maintenance.
The upper end of the housing is provided with fishing neck 10, and the upper end of fishing neck 10 is connected with signal receiver 11, the salvaging
The signal transmission passage electrically connected in neck 10 provided with control board 9 and signal receiver 11.As shown in Figure 1.Presetting system underground
After adjustable choke work really long days, if desired salvage, then well is entered by piano wire band fishing tool, catch presetting system well
The fishing neck 10 of lower adjustable choke, presetting system underground adjustable choke is salvaged into pit shaft.Fishing neck 10 and signal receiver
11 are connected by thread seal.
The upper shell 13 is provided with lock ring 7, and the lock ring 7 connects with the upper end of slips 6.As shown in Figure 1.Lock ring 7 plays lock
Determine the effect of slips 6, prevent slips 6 from moving up.
Embodiment 3：
On the basis of embodiment 1 and embodiment 2, a kind of presetting system adjustable choke, the valve are present embodiments provided
Seat 3, valve rod 4, slip spider 5, slips 6, fishing neck 10, the body of signal receiver 11 use 35CrMo.Hardness up to HBW197 ~
235。
The conehead hard alloy tungsten carbide YG8 materials, thickness are not less than 4mm.
The conehead of valve rod 4 uses hard alloy tungsten carbide YG8 materials, and thickness is not less than 4mm, has very high abrasion-resistance
Can, reduce the conehead of valve rod 4 in pit shaft and use washed out damage frequency for a long time, and then reduce underground throttle device in underground
Failure is damaged；Valve seat 3, valve rod 4, slip spider 5, slips 6, fishing neck 10, signal transmission charger body are not allow for crackle, gas
The defects of hole.
In the present embodiment, the long 1850mm of presetting system underground adjustable choke, body external diameter 70mm, production fluid cross circulation
Road maximum diameter 25mm, the valve rod 4 and adjustment aperture size 0.5mm ~ 25mm of valve seat 3；Flow controller is pressure-resistant 35MPa, 120 DEG C of heatproof.
Compared with the formula of existing machinery activity slips 6 and the preset work cartridge type flow controller of machinery, there is easy to use, flow nipple
Aperture is adjustable, flow nipple abrasion-resistance is high, reduces the frequency and labor intensity for salvaging flow controller, has saved salvaging cost and more
The time is changed, drastically increases the service behaviour and service life of underground throttle device, practical, application effect is notable, is adapted to
Applied in gas well downhole intelligent throttling technique.
Wherein, control board 9, signal receiver 11, signal transmission charger are prior art, can also be according to certainly
Own Demand Design.The part and the well-known components and common structure of the structure category industry or normal that above example does not describe in detail
With means, do not describe one by one here.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within the scope of protection of the utility model.
Claims (8)
1. a kind of presetting system adjustable choke, launch to being set in advance in the preset seating nipple in oil pipe, it is characterised in that：Bag
Include dynamic control device, the upper shell being sequentially connected from top to bottom（13）, slips（6）, slip spider（5）, lower house（14）, valve seat（3）,
The upper shell（13）It is provided with gas outlet（12）, the valve seat（3）It is arranged with packing element outside（2）, the valve seat（3）Top is provided with
Valve rod（4）, the valve rod（4）Upper end is connected with dynamic control device, valve rod（4）Lower end is conehead and valve rod（4）In dynamic control device band
It can be moved up and down vertically under dynamic, the dynamic control device and upper shell（13）It is tightly connected；
The dynamic control device receives the instruction that ground host computer is sent, according to instruction tape ovable valve stem（4）Transport axially upwards or downwards
Move to the position specified.
A kind of 2. presetting system adjustable choke according to claim 1, it is characterised in that：The dynamic control device includes motor
（8）, control board（9）, housing and signal receiver（11）, the motor（8）And control board（9）In housing,
The signal receiver（11）Connected with housing upper end；
The valve rod（4）Upper end connects motor（8）, motor（8）Electrically connect control board（9）, control board（9）With signal
Receiver（11）Connection, the signal receiver（11）Receive the instruction that ground host computer is sent and be transferred to control board
（9）, pass through control board（9）Send a signal to motor（8）With controlled motor（8）Steering.
A kind of 3. presetting system adjustable choke according to claim 1, it is characterised in that：The valve seat（3）Under be connected with
Bottom filters（1）.
A kind of 4. presetting system adjustable choke according to claim 2, it is characterised in that：Also include signal transmission charging
Device, the signal transmission charger and signal receiver（11）Upper end interface connection, the signal transmission charger pass through electromagnetism
Induction effect is to control board（9）Electric energy is provided.
A kind of 5. presetting system adjustable choke according to claim 2, it is characterised in that：The upper end of the housing is provided with and beaten
Drag for neck（10）, the fishing neck（10）Upper end and signal receiver（11）Connection, the fishing neck（10）It is interior to be provided with control board
（9）And signal receiver（11）The signal transmission passage of electrical connection.
A kind of 6. presetting system adjustable choke according to claim 1, it is characterised in that：The upper shell（13）It is provided with
Lock ring（7）, the lock ring（7）With slips（6）Upper end connects.
A kind of 7. presetting system adjustable choke according to claim any one of 1-6, it is characterised in that：The valve seat（3）、
Valve rod（4）, slip spider（5）, slips（6）, fishing neck（10）, signal receiver（11）Body uses 35CrMo.
A kind of 8. presetting system adjustable choke according to claim any one of 1-6, it is characterised in that：The conehead hard
Alloy carbide tungsten YG8 materials, thickness are not less than 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720570492.7U CN206737885U (en) | 2017-05-22 | 2017-05-22 | A kind of presetting system adjustable choke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720570492.7U CN206737885U (en) | 2017-05-22 | 2017-05-22 | A kind of presetting system adjustable choke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206737885U true CN206737885U (en) | 2017-12-12 |
Family
ID=60567439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720570492.7U Active CN206737885U (en) | 2017-05-22 | 2017-05-22 | A kind of presetting system adjustable choke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206737885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996280A (en) * | 2017-05-22 | 2017-08-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of presetting system adjustable choke |
| CN109057761A (en) * | 2018-08-14 | 2018-12-21 | 哈尔滨艾拓普科技有限公司 | A kind of natural gas well underground throttle device of automatically controlled dispensing and salvaging |
-
2017
- 2017-05-22 CN CN201720570492.7U patent/CN206737885U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996280A (en) * | 2017-05-22 | 2017-08-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of presetting system adjustable choke |
| CN109057761A (en) * | 2018-08-14 | 2018-12-21 | 哈尔滨艾拓普科技有限公司 | A kind of natural gas well underground throttle device of automatically controlled dispensing and salvaging |
| CN109057761B (en) * | 2018-08-14 | 2020-09-29 | 哈尔滨艾拓普科技有限公司 | Natural gas well underground throttle for electric control throwing and fishing |
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