CN204716197U - A kind of water filling sealing ball-and-seat - Google Patents
A kind of water filling sealing ball-and-seat Download PDFInfo
- Publication number
- CN204716197U CN204716197U CN201520397135.6U CN201520397135U CN204716197U CN 204716197 U CN204716197 U CN 204716197U CN 201520397135 U CN201520397135 U CN 201520397135U CN 204716197 U CN204716197 U CN 204716197U
- Authority
- CN
- China
- Prior art keywords
- seat
- cover body
- water
- outer cover
- water filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Valve Housings (AREA)
Abstract
The utility model relates to a kind of well well head water filling device, relates to a kind of well water filling sealing ball-and-seat specifically.The utility model comprises water supply connector, the outer cover body be connected with this water supply connector and UNICOM and overlaps, also valve body is provided with in shell chamber body, valve body one end is valve rod, the other end is spool, spool arranged outside has valve seat with matching, and valve seat outer wall contacts with the bore seal of outer cover body.The utility model can effectively prevent oilfield injection water from flowing backwards, and can apply all wellhead of water injection wells, application is wider; Be particularly useful for the loose water injection well that easily shakes out in stratum, water injection well can be reduced and return and tell sand number of times, reduce well of lying, ensure the good flood effectiveness of water injection well.
Description
Technical field
The utility model relates to a kind of well well head water filling device, relates to a kind of well water filling sealing ball-and-seat specifically.
Background technology
When oil-gas field development, in order to ensure the pressure of oil gas field, by oily displacement out, will to stratum water filling or gas injection etc.In the injecting process, in order to realize seperated layer water injection, improving waterflooding development effect, generally bottom oil pipe, ball-and-seat being installed.
Current oil field mostly is being vertical angle valve with water injection well mouth check valve, and primarily of valve ball and valve seat composition, valve ball and valve seat are rigid contact, and are linear sealings, and it is unreliable to seal, and in use, the easy secundly of valve ball, easily causes blow-by problem.In addition, conventional ball-and-seat makes valve seat fit badly because of quality of materials, fouling and the reason such as to shake out, do not have non-return effect, especially part oil field oil reservoir loose cementation, shakes out serious, and water injection well returns that to tell sand more obvious, ball-and-seat poorly sealed close cause formation sand production after, the system of entering causes valve to close incessantly, and the problems such as eliminator sand setting and the damage of pump class, have had a strong impact on water flooding effect.
Summary of the invention
The technical problems to be solved in the utility model there is provided a kind of sealing performance better, more stable water filling ball-and-seat.
For solving the problems of the technologies described above, water filling sealing ball-and-seat of the present utility model, the outer cover body comprising water supply connector and be connected with this water supply connector, this ball-and-seat also comprises UNICOM's cover, this UNICOM overlaps one end and is connected with outer cover body, the other end is connected with water out adapter, and the side of described outer cover body is provided with the weep hole making outer cover body inner chamber and UNICOM overlap inner chamber to connect; This ball-and-seat also comprises a spacing plug, the outer wall of this spacing plug contacts with described outer cover body bore seal, also valve body is comprised at described outer cover body inner chamber, described valve body one end is the valve rod being provided with elastomeric element, the valve body other end is spool, this spool arranged outside has valve seat with matching, and this valve seat outer wall contacts with the bore seal of outer cover body.
Improve as the present invention's one, an end face of described spacing plug is connected with the stop collar of hollow, and described valve rod can move back and forth along the inwall of this stop collar.
Described valve rod is provided with and salvages hole.
As another improvement of the present invention, described valve core outer surface is taper surface.
Described valve core outer surface is provided with seal member.
Described seat bottom portion is provided with the fixed cover of hollow, and this fixed cover outer wall is connected with described outer cover body inner wall sealing.
Compared with prior art, the utility model has the advantage of, by spool is changed into cone structure by original spherical structure, turn increase corrosion-resistant sealing ring at cone structure, effectively increase sealing and the stability of ball-and-seat.When surface line perforation or main line water filling fault stop water filling, spool realizes closing tightly under spring and borehole pressure dual-pressure, and the water injecting stratum can not be return, reaches the object improving water flooding effect.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of a kind of water filling sealing ball-and-seat.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the present invention.
As shown in Figure 1, a kind of water filling sealing ball-and-seat, the outer cover body 2 comprising water supply connector 13 and be connected with water supply connector 13, outer cover body 2 is hollow circle tube, this ball-and-seat also comprises UNICOM's cover 14, UNICOM overlaps 14 one end and is connected with outer cover body 2, the other end is connected with water out adapter 8, water hole 5 is set out in the side of outer cover body 2, the inner chamber that weep hole 5 makes the inner chamber of outer cover body 2 and UNICOM overlap 14 connects, this ball-and-seat also comprises a spacing plug 1, outer wall and outer cover body 2 inner chamber of this spacing plug 1 are threaded connection sealing, also valve body is provided with at outer cover body 2 inner chamber, valve body one end is the valve rod 6 being provided with elastomeric element, in the embodiment shown in fig. 1, elastomeric element is spring 7, elastomeric element also can be leaf spring, the valve body other end is spool 10, matches, can realize effective sealing outside this spool 10 with valve seat 11, and valve seat 11 outer wall contacts with the bore seal of outer cover body 2.Be connected with the stop collar 3 of hollow at an end face of spacing plug 1, spacing plug 1 and stop collar 3 are by weld or the mode of screw thread is connected, and the internal diameter of stop collar 3 is slightly larger than the external diameter of valve rod 6, and during work, valve rod 6 can move at the inner chamber of stop collar 3.Valve rod 6 is provided with circular salvaging hole 4, valve body break down need to change time, only need take out spacing plug 1, under enter fishing tool, catch on and salvage hole 4, can extract valve body, whole Renewal process is simple to operate, convenient.In the embodiment shown in fig. 1, spool 10 external surface is arranged to taper surface, and valve seat 11 medial surface is also arranged to the taper surface matched with spool 10 external surface, and spool 10 can be realized sealing by close contact with valve seat 11.Spool 10 can also arrange sealing ring 9, to improve the sealing of spool 10 and valve seat 11.Bottom valve seat 11, be provided with fixed cover 12, fixed cover 12 is fixedly connected with by screw thread with valve seat 11, so that fixed by valve seat 11, fixed cover 12 and outer cover body 2 inwall are also threaded connection fixing.
During use, water out adapter 8 and water supply connector 13 are fastenedly connected by clip with wellhead of water injection well flow process pipeline respectively.During the normal water filling of water injection well, inject water to be entered by water supply connector 13, under the pressure injecting water, promotion spool 10, valve rod 6 move up, and move past Compress Spring 7 in journey upper, valve rod 6 moves up at stop collar 3 inner chamber, on move past in journey, inject water enter outer cover body 2 inner chamber, then through weep hole 5, enter injection well pipe column by UNICOM's cover 14, water out adapter 8, then inject into well.When the perforation of ground waterflood-transmission line or main line water filling fault stop water filling, borehole pressure is above the ground level waterflood-transmission line pressure, spool 10 is under spring 7 and the acting in conjunction of well internal water pressure, move down, spool 10 is realized and the close contact of valve seat 11 by the conical surface, effectively ensures that the water injecting stratum can not be return, and effectively containment oil field water well causes noting not intaking and buries the generation of oil reservoir phenomenon with sand because of anti-sand of telling, greatly reduce well rate of lying, reach the object improving water flooding effect.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (7)
1. a water filling sealing ball-and-seat, the outer cover body comprising water supply connector and be connected with this water supply connector, it is characterized in that: this ball-and-seat also comprises UNICOM's cover, this UNICOM overlaps one end and is connected with outer cover body, the other end is connected with water out adapter, and the side of described outer cover body is provided with the weep hole making outer cover body inner chamber and UNICOM overlap inner chamber to connect; This ball-and-seat also comprises a spacing plug, the outer wall of this spacing plug contacts with the bore seal of described outer cover body, this outer cover body inner chamber also comprises valve body, described valve body one end is the valve rod being provided with elastomeric element, the other end is spool, this spool arranged outside has valve seat with matching, and this valve seat outer wall contacts with the bore seal of outer cover body.
2. water filling as claimed in claim 1 sealing ball-and-seat, is characterized in that: an end face of described spacing plug is connected with the stop collar of hollow, and described valve rod can move back and forth along the inwall of this stop collar.
3. water filling as claimed in claim 1 or 2 sealing ball-and-seat, is characterized in that: described valve rod is provided with and salvages hole.
4. water filling as claimed in claim 1 or 2 sealing ball-and-seat, is characterized in that: described valve core outer surface is taper surface.
5. water filling as claimed in claim 4 sealing ball-and-seat, is characterized in that: described valve core outer surface is provided with seal member.
6. water filling as claimed in claim 1 sealing ball-and-seat, it is characterized in that: described seat bottom portion is provided with the fixed cover of hollow, this fixed cover outer wall is connected with described outer cover body inner wall sealing.
7. water filling as claimed in claim 1 sealing ball-and-seat, is characterized in that: described elastomeric element is spring or leaf spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397135.6U CN204716197U (en) | 2015-06-10 | 2015-06-10 | A kind of water filling sealing ball-and-seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397135.6U CN204716197U (en) | 2015-06-10 | 2015-06-10 | A kind of water filling sealing ball-and-seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716197U true CN204716197U (en) | 2015-10-21 |
Family
ID=54315201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520397135.6U Expired - Fee Related CN204716197U (en) | 2015-06-10 | 2015-06-10 | A kind of water filling sealing ball-and-seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357140A (en) * | 2021-03-01 | 2021-09-07 | 中海油能源发展股份有限公司 | Double-seal check valve of electric submersible pump and sealing method thereof |
-
2015
- 2015-06-10 CN CN201520397135.6U patent/CN204716197U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357140A (en) * | 2021-03-01 | 2021-09-07 | 中海油能源发展股份有限公司 | Double-seal check valve of electric submersible pump and sealing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203756146U (en) | Sleeve protecting setting water injection integrated pipe column | |
| CN204716197U (en) | A kind of water filling sealing ball-and-seat | |
| CN205172486U (en) | Level pressure well washing device | |
| CN202914024U (en) | Float collar | |
| CN206144524U (en) | Well filters single current valve | |
| CN104481447B (en) | A kind of quantitative injection pressure measurement is combined blanking plug | |
| CN205532597U (en) | Water injection well well head sewage corrosion detection device | |
| CN205225129U (en) | Hydraulic anchor | |
| CN203879474U (en) | CO2 oil displacement injection well anticorrosion anti-seepage production tubular column | |
| CN102926678B (en) | The long anti-casing corrosion Well-cleaning protection device of tail pipe | |
| CN209604560U (en) | The anti-arranging device of greasy dirt in a kind of anti-stratum | |
| CN202954784U (en) | Slag prevention check valve for water injection well | |
| CN205841181U (en) | Discharge opeing plunger and liquid discharging apparatus | |
| CN203769690U (en) | Check valve for drilling tool | |
| CN204283306U (en) | A kind of quantitative injection pressure measurement compound blanking plug | |
| CN203835357U (en) | Eccentric water injection device of oil extraction pipe column | |
| CN204877378U (en) | Single current valve | |
| CN204266985U (en) | A kind of backflow proof device | |
| CN203515468U (en) | Water injection well opening check valve convenient to dismantle | |
| CN202596663U (en) | Wellhead check valve | |
| CN202926246U (en) | Long-tail-pipe casing-corrosion-preventing well flushing protection device | |
| CN103806883A (en) | Pre-throttling anti-stabbing water distributor | |
| CN208803834U (en) | Internal magnetization wax control device | |
| CN201835805U (en) | Anti-counter flow device for eccentric water distributor | |
| CN101988379A (en) | Backflow-resistant device of eccentric water distributor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |