CN208184707U - A kind of piston restriction formula ball-and-seat - Google Patents
A kind of piston restriction formula ball-and-seat Download PDFInfo
- Publication number
- CN208184707U CN208184707U CN201820488453.7U CN201820488453U CN208184707U CN 208184707 U CN208184707 U CN 208184707U CN 201820488453 U CN201820488453 U CN 201820488453U CN 208184707 U CN208184707 U CN 208184707U
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- China
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- piston
- seat
- hole
- valve body
- current limliting
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Abstract
Disclosed by the utility model is a kind of piston restriction formula ball-and-seat, in oil well normal productive process, it is ensured that the operations such as test, hot wash, kill-job of oil well, since this ball-and-seat has metering function, more crude oil can not be leaked in a short time, and there is anti-theft function.This ball-and-seat includes valve body, characterized in that valve body is provided with piston seat and current limliting piston, the piston body of current limliting piston is equipped with liquid flow hole, the piston rod of current limliting piston is equipped with metering hole, and the aperture of the metering hole is less than the aperture of liquid flow hole, and liquid flow hole and metering hole are connected to the inner cavity of piston body；Reset spring is mounted between current limliting piston and spring adjustment seat, and current limliting piston is enable to slide in piston seat, when external operational pressure is greater than the elastic force of reset spring, exposes liquid flow hole.The slow release that casing oil can be achieved achievees the purpose that antitheft and does not influence production and production operation.With significant anti-theft function and using effect, production cost is significantly reduced.
Description
Technical field
The utility model relates to ball-and-seat used in petroleum industry well head device, especially a kind of piston restriction
Formula ball-and-seat, in oil well normal productive process, it is ensured that the operations such as test, hot wash, kill-job of oil well, due to this ball-and-seat
With metering function, more crude oil can not be leaked in a short time, and there is anti-theft function.
Background technique
The oil well for having casing oil be typically all High water cut, liquid level well head feed flow abundance well, since casing oil often contains
Water is lower, even zero, therefore casing oil is always the main target that thief is stolen, and steals phenomenon frequent occurrence.Although
It takes a variety of strikes, prevent means, can not still prevent, casing oil loss case accounts for 51.1 % of entire oily area incidence of cases, a bite oil
Well is stolen once with regard to 1-5 tons of loss of energy crude oil.In addition stolen usually causes the major accidents such as environmental pollution or even fire, is
This production unit will also undertake environmental pollution expense and other losses.
It is at present the generation for reducing stolen event, generally takes the side for being replaced with tank car and taking casing oil or blocking sleeve valve
Method, the but because of influence of vehicle and weather and the hole condition difference of each well can not accomplish all for taking.Even if the whole quilts of casing oil
After taking, still it can separate from Produced Liquid soon.If not in order to antitheft, as long as periodically, level pressure arranges to production flow line
It puts, does not need closure sleeve valve for oil, more without tank car at all.And sleeve valve or down cup are blocked if taken
After closure, carry out other flow charts, such as put set gas, test be all limited, also buried for production operation safe hidden
Suffer from.
Summary of the invention
The purpose of the utility model is to provide a kind of piston restriction formula ball-and-seats, can be in the premise for meeting production needs
Under, the generation of stolen event is prevented, guarantees being normally carried out for production, protects environment, protects state owned property, reduces production cost.
The technical solution of the utility model is: a kind of piston restriction formula ball-and-seat includes valve body, and valve body is provided with work
Obturating plug and current limliting piston, the piston body of current limliting piston are equipped with liquid flow hole, and the piston rod of current limliting piston is equipped with metering hole, the limit
The aperture of discharge orifice is less than the aperture of liquid flow hole, and liquid flow hole and metering hole are connected to the inner cavity of piston body；Reset spring is mounted on
Between current limliting piston and spring adjustment seat, current limliting piston is enable to slide in piston seat, is greater than in external operational pressure and resets
When the elastic force of spring, expose liquid flow hole.
Compared with prior art, the significant using effect of the utility model is: the utility model provides a kind of simple, peace
Full ball-and-seat is mounted on the connecting portion of four-way junction of casing and sleeve valve, by the movement of current limliting piston, can not influence
Under the premise of production and various operations, the slow release of casing oil is realized, reach antitheft and do not influence to produce and production operation
Purpose.Since this ball-and-seat has metering function, production and antitheft double action can satisfy, even thief is dismantled
Sleeve valve, can not also leak more crude oil in a short time, and thief can not fall into a long wait, and have significant antitheft
Effect and using effect, significantly reduce production cost.Its effect and working principle are:
1, installation is simple, without operation, from the connection nozzle of ground well head four-way and sleeve valve from be mounted directly, pacify
It after dress, can not normally dismantle, only in workover treatment, dismantle well head four-way, after well head four-way internal regulation anchor pin
It can remove.
2, the piston body of current limliting piston is equipped with liquid flow hole, for normal production operation use, and piston rod is equipped with limit
Discharge orifice after current limliting piston reset, has anti-theft function.
3, the antitheft principle of the present apparatus is by current limliting, extends and drain the oil the time, but can be with normal mounting pressure gauge or pressure
The instruments such as force snesor survey pressure, in the case where not influencing production requirement, prevent casing oil stolen.
4, the present apparatus is mounted in the connection nozzle of well head four-way and sleeve valve, equipped with the outer of high intensity at valve outlet
Baffle and Internal baffle, the duct on plate body are staggered, have protective effect to the present apparatus, can not break unloading sleeve valve
It is bad to arrive valve body.
5, the present apparatus is locked using anchor pin, and any valve body that rotates may be locked in the centre bore hole wall of well head four-way
And can not take out, play the role of tamper-proof, while the sealing ring manufactured of oil resistant rubber is squeezed with the tube wall for connecting nozzle and sealed, and is risen
To sealing function.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing, not limits the protection scope of the utility model.It is as described below to be only
The preferred embodiment of the utility model, it is non-to limit the protection scope of the utility model, other with the utility model etc.
Effect variation, all should belong to the protection range of the utility model.
Referring to Fig. 1, a kind of piston restriction formula ball-and-seat includes valve body 1, and valve body 1 is provided with piston seat 5 and current limliting piston 7,
The piston body of current limliting piston 7 is equipped with liquid flow hole 6, and the piston rod of current limliting piston 7 is equipped with metering hole 12, the hole of the metering hole 12
Diameter is less than the aperture of liquid flow hole 6, and liquid flow hole 6 and metering hole 12 are connected to the inner cavity of piston body；Reset spring 8 is mounted on current limliting
Between piston 7 and spring adjustment seat 9, current limliting piston 7 is enable to slide in piston seat 5, is greater than in external operational pressure and resets
When the elastic force of spring 8, expose liquid flow hole 6.Under normal production scenarios, under the action of oil jacket pressure, liquid flow hole 6 is by piston seat 5
Blocking, can not form fluid course, and casing oil can only be flowed out by metering hole 12, be unable to huge discharge outflow.
It is equipped with internal screw thread in the valve body 1, spring adjustment seat 9, piston seat 5 are threadedly coupled with valve body 1, spring adjustment seat
9 are equipped with centre bore or edge flowing hole；It is also equipped with Internal baffle 3 and outer baffle 2 in the front of piston seat 5, Internal baffle 3 is equipped with center
Hole, outer baffle 2 are equipped with edge flowing hole.
The centre bore of the Internal baffle 3 is shifted to install with the edge flowing hole of outer baffle 2, the edge flowing hole of outer baffle 2
Aperture be less than Internal baffle 3 centre bore, at least provided with three, be uniformly arranged on the plate body periphery of outer baffle 2.Outer baffle is set
2 and Internal baffle 3 purpose primarily to protection current limliting piston 7, prevent the artificial destruction to current limliting piston 7.
The aperture of the metering hole 12 is set between 1.5mm-3mm, due to the aperture very little of metering hole 12, is limited
Casing oil leaks, even if destroying molecule has dismantled sleeve valve, will can not more release, have in the casing oily short time
Significant anti-theft function.
Anchor pin 11 is also equipped in the valve body 1 at 9 rear of spring adjustment seat, anchor pin 11 is mounted on valve by guide 10
In body 1.
The middle part body of rod of the anchor pin 11 is equipped with limiting stand, from the limiting stand root to the rod end of anchor pin 11
Distance is greater than the distance between 10 bottom end of guide to well head four-way centre bore hole wall；Anchor hole on guide 10 and valve body 1 welds, anchor
The outer diameter of the 11 both ends body of rod of rationed marketing is less than the internal diameter of guide 10, the limiting stand outer diameter of its middle part body of rod is greater than the internal diameter of guide 10.
Anchor pin 11 can be slided in guide 10, and the guide 10 that cannot scurry out completely, and rotation valve body 1 can make anchor pin 11 from guide
It partially scurries out, is locked on the centre bore hole wall of well head four-way in 10, prevent from destroying molecule disassembly, the present apparatus can only be applied in operation
Working hour dismantles well head four-way, removes inside well head four-way.
The ontology of the valve body 1 is equipped with sealing ring 4, and the front end of valve body 1 is equipped with block machine, and the outer diameter of the block machine is greater than well head
The internal diameter of four-way connecting tube, but it is less than the internal diameter that well head four-way connecting tube inner chamfer is formed, to prevent valve body 1 in installation process
Middle entirety is submerged in well head four-way connecting tube.The block machine make it is easy for installation, prevent installation when excessively go deep into inside well head four-way,
Working liquids are also prevented to shift the impact of the present apparatus.Sealing ring 4 can guarantee the tight fit of valve body 1 and well head four-way and can prevent
Only well liquid leaks.It connect, prevents with well head four-way after in the connection nozzle of present apparatus loading well head four-way, then by sleeve valve
After only destruction molecule has dismantled sleeve valve, the further destruction to the present apparatus.
The embodiment described above is only exemplary embodiments, but the utility model is not limited only to these embodiments, ability
The technical staff in domain can make modification under the spirit and enlightenment without departing from the utility model.Aspect disclosed herein may
In the presence of many changes, combination and modification, and all in the scope of the utility model, therefore, protection scope is not limited only to above
Explanation.
Claims (7)
1. a kind of piston restriction formula ball-and-seat, including valve body, characterized in that valve body is provided with piston seat and current limliting piston, current limliting
The piston body of piston is equipped with liquid flow hole, and the piston rod of current limliting piston is equipped with metering hole, and the aperture of the metering hole is less than liquid stream
The aperture in hole, liquid flow hole and metering hole are connected to the inner cavity of piston body；Reset spring is mounted on current limliting piston and spring is adjusted
Between seat, current limliting piston is enable to slide in piston seat, when external operational pressure is greater than the elastic force of reset spring, exposes liquid
Discharge orifice.
2. a kind of piston restriction formula ball-and-seat as described in claim 1, characterized in that be equipped with internal screw thread, bullet in the valve body
Spring adjustment seat, piston seat are connect with valve body screw thread, and spring adjustment seat is equipped with centre bore or edge flowing hole；Before piston seat
Side is also equipped with Internal baffle and outer baffle, and Internal baffle is equipped with centre bore, and outer baffle is equipped with edge flowing hole.
3. a kind of piston restriction formula ball-and-seat as claimed in claim 2, characterized in that the centre bore of the Internal baffle and outer gear
The edge flowing hole of plate shifts to install, and the aperture of the edge flowing hole of outer baffle is less than the centre bore of Internal baffle, at least provided with three
It is a, it is uniformly arranged on the plate body periphery of outer baffle.
4. a kind of piston restriction formula ball-and-seat as described in claim 1, characterized in that the aperture of the metering hole is set in
Between 1.5mm-3mm.
5. a kind of piston restriction formula ball-and-seat as claimed in claim 1 or 2, characterized in that spring adjustment seat rear
Anchor pin is also equipped in valve body, which is mounted in valve body by guide.
6. a kind of piston restriction formula ball-and-seat as claimed in claim 5, characterized in that the middle part body of rod of the anchor pin is equipped with
Limiting stand is greater than guide bottom end to well head four-way centre bore hole wall from the limiting stand root to the distance of the rod end of anchor pin
The distance between；Anchor hole on guide and valve body welds, and the outer diameter of the anchor pin both ends body of rod is less than the internal diameter of guide, its middle part bar
The limiting stand outer diameter of body is greater than the internal diameter of guide.
7. a kind of piston restriction formula ball-and-seat as claimed in claim 6, characterized in that the ontology of the valve body is equipped with sealing
Circle, the front end of valve body are equipped with block machine, and the outer diameter of the block machine is greater than the internal diameter of well head four-way connecting tube, but is less than well head four-way and connects
The internal diameter that pipe inner chamfer is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820488453.7U CN208184707U (en) | 2018-04-09 | 2018-04-09 | A kind of piston restriction formula ball-and-seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820488453.7U CN208184707U (en) | 2018-04-09 | 2018-04-09 | A kind of piston restriction formula ball-and-seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184707U true CN208184707U (en) | 2018-12-04 |
Family
ID=64436615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820488453.7U Expired - Fee Related CN208184707U (en) | 2018-04-09 | 2018-04-09 | A kind of piston restriction formula ball-and-seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208184707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112092506A (en) * | 2020-06-23 | 2020-12-18 | 珠海纳思达企业管理有限公司 | Ink box |
-
2018
- 2018-04-09 CN CN201820488453.7U patent/CN208184707U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112092506A (en) * | 2020-06-23 | 2020-12-18 | 珠海纳思达企业管理有限公司 | Ink box |
| CN112092506B (en) * | 2020-06-23 | 2021-12-07 | 珠海纳思达企业管理有限公司 | Ink box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 Termination date: 20210409 |