CN203499608U - Multifunctional sand flushing and well washing valve - Google Patents
Multifunctional sand flushing and well washing valve Download PDFInfo
- Publication number
- CN203499608U CN203499608U CN201320223955.4U CN201320223955U CN203499608U CN 203499608 U CN203499608 U CN 203499608U CN 201320223955 U CN201320223955 U CN 201320223955U CN 203499608 U CN203499608 U CN 203499608U
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- block
- blocking
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- torsion spring
- stop sleeve
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Abstract
The utility model discloses a multifunctional sand flushing and well washing valve, which comprises an upper joint, a lower joint, a ball stop sleeve, a stopper and a steel ball, wherein the upper joint is sleeved with the lower joint in a sealed manner, the ball stop sleeve is fixedly arranged on the lower end, which is located on the upper joint, in the lower joint, the stopper is arranged in the ball stop sleeve for blocking the steel ball, the stopper is movably connected to the ball stop sleeve, a connecting rod is arranged on the ball stop sleeve, the connecting rod is sleeved with a torsion spring, one end of the torsion spring is connected to the stopper, and the other end of the torsion spring is connected to the ball stop sleeve. The multifunctional sand flushing and well washing valve has the beneficial effects that 1, intermediate processes of the operation such as sand flushing, well washing and the like can be realized under the high-pressure (less than 50 MPa) condition of the well bottom, the multifunctional sand flushing and well washing valve can be used as an anti-overflow completing tool and has the characteristics of strong universality, convenience for use, safety, high repetitive utilization rate, simplicity in operation and the like; 2, the construction efficiency of the operation under pressure is increased, the construction effect is improved, and the production cost is saved for oilfield development.
Description
Technical field
The utility model relates to multi-functional sand-flushing valve.
Background technology
The supporting downhole tool of Operating Pressure that at present domestic each oil field is used is mainly used for all kinds of tubing plugs that former well casing post trips out and for the production of the tubing string all kinds of completion calkers that are lowered to pressure.Yet there are no document and the report of the special tool of the middle operation tubing string use such as the operation that is applicable to sand washing, well-flushing.
If do not carry out the operations such as sand washing, well-flushing in Operating Pressure construction, can cause incrustation scale, dead oil or the crystal salt etc. of internal surface of sleeve pipe to can not get cleaning, affect the working effect of completion tubular column packer or other downhole tool, reduce the application life of completion tubular column.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of multi-functional sand-flushing valve for the technical problem existing in above-mentioned prior art, this flushing valve can not only meet in Operating Pressure construction the demand of operation in the middle of pipe cleaning with pressure, sand washing, well-flushing etc., the operation kit multi-functional with pressure that can use as Operating Pressure completion tool again.
The technical scheme that the utility model adopts is: multi-functional sand-flushing valve, it is characterized in that: it comprises top connection, lower contact, the cover of blocking, block, steel ball, top connection and lower contact sealing socket, the lower end that is positioned at top connection in lower contact is fixedly installed the cover of blocking, described in block in cover and block be set to stop steel ball, block is flexibly connected with blocking to overlap, be provided with connecting rod blocking to put, on connecting rod, cover has torsion spring, and one end of torsion spring is connected with block, and the other end is connected with the cover of blocking.
By technique scheme, in the cover of blocking, groove is set, described block is arranged on groove, and when block rotates to below, block is pressed in groove.
By technique scheme, described groove arranges along the circumferential interval of cover inwall of blocking, and in each groove correspondence, block, torsion spring and connecting rod is set.
By technique scheme, at described block, be U-shaped shape, block is hinged with the cover of blocking by connecting rod, and one end of torsion spring is connected with block, and the other end is connected with the cover of blocking.
By technique scheme, the lower end inwall of described top connection is the up-thin-low-thick conical surface.
Operating principle of the present utility model is: the utility model is coupled to tubing string bottom.In the process of lower tubular column, steel ball and the top connection conical surface form sealing, can plugged well bottom pressure, make tubing string with pressure transferring smoothly.When transferring to assigned address, oil pipe just builds the pressure, and utilizes the liquid stream motive force that flushing fluid produces to promote steel ball extruding block, and the stressed generation elastic deformation of torsion spring is rotated around connecting rod.Meanwhile, torsion spring drives block to rotate and makes steel ball lose support and fall to the basket place of receiving, and tubing string is communicated with immediately, realizes sand-flushing function.The impulse force of flushing fluid is washed steel ball open torsion spring and block, falls to the basket of receiving, and tubing string is communicated with, and realizes sand-flushing function.Also can connect and set sliding sleeve in multi-functional sand-flushing valve bottom in addition.Steel ball loses to support and falls to sliding sleeve fuse place and can form secondary plugging, and oil pipe is just building the pressure and realizing packer setting; Continue to improve tubing pressure and cut off pin, can realize water-filling function.
The obtained beneficial effect of the utility model is:
1, can in shaft bottom high pressure (in 50MPa) situation, realize the middle operation of the operations such as sand-flushing, can also use as anti-overflow completion tool, there is the features such as highly versatile, property easy to use, safe and repeat usage are high, simple to operate.
2, improve Operating Pressure efficiency of construction and improve construction effect, for oil field development saves production cost.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is partial sectional view of the present utility model.
Fig. 4 is for being the supporting structural representation that sets sliding sleeve.
Accompanying drawing number is: 1, top connection, 2, O type circle, 3, steel ball, 4, block, 5, torsion spring, 6, the cover of blocking, 7, lower contact, sliding sleeve body, 9, sliding sleeve fuse, 10, O type circle, 11, pin.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 to Fig. 3 shows the structural representation that the utility model provides an embodiment, as seen from the figure, multi-functional sand-flushing valve comprises top connection 1, lower contact 7, block and overlap 6, block 4, steel ball 3, top connection 1 is socketed by 2 sealings of O type circle with lower contact 7, the lower end that is positioned at top connection 1 in lower contact 7 is fixedly installed the cover 6 of blocking, the described cover 6 interior circumferential intervals of blocking arrange 3 grooves, upper end correspondence at each groove arranges block 4, described block 4 is U-shaped shape, block 4 is hinged with the cover 6 of blocking by connecting rod, on connecting rod, be set with torsion spring 5, one end of torsion spring 5 is connected with block 4, the other end is connected with the cover 6 of blocking, when the active force on being applied to steel ball 3 is enough large, steel ball 3 promotes block 4 rotations block 4 is pressed in groove, and the diameter forming when block is pressed into groove is greater than the diameter of steel ball 3, steel ball 3 falls.
In the present embodiment, the lower end inwall of described top connection 1 is the up-thin-low-thick conical surface to make steel ball and the conical surface of top connection formation sealing.。
The utility model is arranged on to the bottom of conventional sand washing, Flushing tubular column, tubing string is lowered in process: block 4, torsion spring 5, connecting rod and the cover 6 of blocking make steel-ball limiting, and the conical surface that steel ball is close to top connection 1 forms sealing, and shaft bottom liquid stream cannot be overflowed by oil pipe.After tubing string is transferred to assigned address, oil pipe just builds the pressure, and the liquid stream motive force that flushing fluid produces promotes steel ball 3 extruding blocks 4, and the stressed generation elastic deformation of torsion spring 5 is rotated around connecting rod.Meanwhile, torsion spring 5 drives block 4 rotations that steel ball 3 is lost and supports and fall to the basket place of receiving, and tubing string is communicated with immediately, can realize the middle operation of the operations such as sand-flushing.
When the utility model is done the use of anti-overflow ball seat, need connect and set sliding sleeve in bottom.Set the structural representation of sliding sleeve as shown in Figure 4, set sliding sleeve and formed by sliding sleeve body 8, sliding sleeve fuse 9, O type circle 10 and pin 11.Steel ball loses to support and falls on sliding sleeve fuse 9, can form secondary plugging, and oil pipe is just building the pressure and realizing packer setting; Continue to improve tubing pressure and cut off pin 11, can realize water-filling function.
Claims (5)
1. multi-functional sand-flushing valve, it is characterized in that: it comprises top connection, lower contact, the cover of blocking, block, steel ball, top connection and lower contact sealing socket, the lower end that is positioned at top connection in lower contact is fixedly installed the cover of blocking, described in block in cover and block be set to stop steel ball, block is flexibly connected with blocking to overlap, be provided with connecting rod blocking to put, on connecting rod, cover has torsion spring, and one end of torsion spring is connected with block, and the other end is connected with the cover of blocking.
2. multi-functional sand-flushing valve according to claim 1, is characterized in that, in the cover of blocking, groove is set, and described block is arranged on the upper end of groove, and when block rotates the below to groove, block is pressed in groove.
3. multi-functional sand-flushing valve according to claim 1 and 2, is characterized in that described groove arranges along the circumferential interval of cover inwall of blocking, and arranges block, torsion spring and connecting rod in each groove correspondence.
4. multi-functional sand-flushing valve according to claim 3, is characterized in that at described block be U-shaped shape, and block is hinged with the cover of blocking by connecting rod, and one end of torsion spring is connected with block, and the other end is connected with the cover of blocking.
5. multi-functional sand-flushing valve according to claim 1 and 2, is characterized in that the lower end inwall of described top connection is the up-thin-low-thick conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320223955.4U CN203499608U (en) | 2013-04-28 | 2013-04-28 | Multifunctional sand flushing and well washing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320223955.4U CN203499608U (en) | 2013-04-28 | 2013-04-28 | Multifunctional sand flushing and well washing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499608U true CN203499608U (en) | 2014-03-26 |
Family
ID=50330597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320223955.4U Expired - Fee Related CN203499608U (en) | 2013-04-28 | 2013-04-28 | Multifunctional sand flushing and well washing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464609A (en) * | 2015-12-21 | 2016-04-06 | 中国石油天然气股份有限公司 | Well washing valve |
| CN106761557A (en) * | 2016-12-28 | 2017-05-31 | 中国石油天然气股份有限公司 | A kind of releasing type standing valve, injection-production technical tubing string and its method |
-
2013
- 2013-04-28 CN CN201320223955.4U patent/CN203499608U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464609A (en) * | 2015-12-21 | 2016-04-06 | 中国石油天然气股份有限公司 | Well washing valve |
| CN106761557A (en) * | 2016-12-28 | 2017-05-31 | 中国石油天然气股份有限公司 | A kind of releasing type standing valve, injection-production technical tubing string and its method |
| CN106761557B (en) * | 2016-12-28 | 2019-05-07 | 中国石油天然气股份有限公司 | A kind of releasing type fixed valve, injection-production technical tubing string and its method |
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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 |
Granted publication date: 20140326 Termination date: 20180428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |