CN206016756U - A kind of down-hole plugging device of sleeve pipe snubbing serving method - Google Patents
A kind of down-hole plugging device of sleeve pipe snubbing serving method Download PDFInfo
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- CN206016756U CN206016756U CN201620747093.9U CN201620747093U CN206016756U CN 206016756 U CN206016756 U CN 206016756U CN 201620747093 U CN201620747093 U CN 201620747093U CN 206016756 U CN206016756 U CN 206016756U
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Abstract
The utility model discloses a kind of down-hole plugging device of sleeve pipe snubbing serving method, it is connected to block sleeve pipe by transition taper seat in the lower end of higher level's sleeve pipe, the diameter of closure sleeve pipe is less than the diameter of higher level sleeve pipe, on the inwall of closure sleeve pipe, stopping means is set, through hole screen casing is connected in the lower end of closure sleeve pipe, through hole screen casing is connected to righting pipe by transition taper seat, the diameter of righting pipe and the equal diameters for blocking sleeve pipe, in the sealing of the lower end of righting pipe, passage is set, coordinate the closure blind pipe or plugging device for being installed with lower mouth closing in closure sleeve pipe, on the upper orifice of closure blind pipe or plugging device, on-off connector is set, sealing ring is installed with by closure gasket groove on the outer wall of closure blind pipe, closure blind pipe is engaged with closure sleeve pipe or righting pipe by sealing ring, or down-hole plugging is realized by plugging device.Which is rational in infrastructure, dependable performance, can from down-hole plugging pipeline, completely cut off sleeve pipe inside and outside pressure, can be with the workover treatment of actuating oil-pumping unit with pressure, oil pipe or sleeve pipe.
Description
Technical field
The utility model is related to oilfield downhole operation field, and belonging to one kind can actuating oil-pumping unit with pressure, oil pipe, sleeve pipe well workover
The corollary apparatus of operational method, particularly a kind of down-hole plugging device of sleeve pipe snubbing serving method.
Background technology
The various wells in oil field（Such as oil well, well, steam injection well etc.）Production or well workover during, it is sometimes necessary to closure pipe
Road, the inside and outside pressure source of isolation pipeline.Such as：
1, during well workover, before handling sucker rod, oil pipe or sleeve pipe, need to block casing part pressure, it is to avoid work progress
In, down-hole medium sprays, and causes energy waste, environmental pollution, or security incident.
Requirements above can be met currently without similar products, well killing fluid is generally used during well workover, is poured into from oil pipe, limit
Down-hole pressure.Duty cycle is long, high cost.
2, in oilbearing stratum after steam injection, the stewing well of a period of time to be experienced makes heat fully transmit in oil reservoir, makes
Fluid is assembled.At this moment, diffusion of the heat in tubing string will be reduced as far as possible, thermal energy consumption is reduced, while being also prevented from stratum
Various media enter tubing string, cause fouling etc. to affect at high temperature.
Utility model content
The purpose of this utility model is to provide a kind of down-hole plugging device of sleeve pipe snubbing serving method, and its structure is closed
Reason, dependable performance, can from down-hole plugging pipeline, completely cut off sleeve pipe inside and outside pressure, can be with actuating oil-pumping unit with pressure, oil pipe or set
The workover treatment of pipe, safe efficient, environmental protection, production energy-saving.
The purpose of this utility model is realized in：A kind of down-hole plugging device of sleeve pipe snubbing serving method,
The lower end of higher level's sleeve pipe is connected to block sleeve pipe by transition taper seat, and the diameter for blocking sleeve pipe is less than the diameter of higher level sleeve pipe,
Stopping means is set on the inwall of closure sleeve pipe, tube wall is connected to by transition taper seat in the lower end of closure sleeve pipe uniform
The through hole screen casing of through hole, through hole screen casing are connected to righting pipe by excessive taper seat, and the diameter of righting pipe is straight with closure sleeve pipe
Footpath is equal, in the sealing of the lower end of righting pipe arranges passage, coordinates the envelope for being installed with lower mouth closing in closure sleeve pipe
Stifled blind pipe or plugging device, arrange on-off connector on the upper orifice for blocking blind pipe or plugging device, pass through on the outer wall of closure blind pipe
Closure gasket groove is installed with sealing ring, and closure blind pipe is engaged with closure sleeve pipe or righting pipe by sealing ring, or by closure
Down-hole plugging realized by device.
Operation principle of the present utility model：
（1）When oil pipe is with on-off connector top, clashes into closure blind pipe, blind pipe is pushed down in righting pipe, on-off connector reality
Now dock, at this moment may lift up oil pipe, closure blind pipe is mentioned in closure sleeve pipe, sealed condition is realized；Pressure quilt in oil reservoir
Closure is in blind pipe bottom, it is impossible to enter in higher level's sleeve pipe and oil pipe.
At this moment can above be carried or be transferred sucker rod, oil pipe or casing operation.Or belong to stewing well state, waste heat
By closure in casing part.
（2）With oil pipe or other butt tubes, directly closure blind pipe is shifted onto in through hole screen casing or righting pipe, when closure blind pipe
In through hole screen casing, or when in righting pipe, belong to open mode, the fluid or pressure in oil reservoir can be entered by through hole
Sleeve pipe, process closure casing tube internal hole, enter back in higher level's sleeve pipe and oil pipe.
At this moment, the production operations such as steam injection, oil recovery can be carried out.
If if the damage of original plugging structure, also compensation process：
（1）Limiting stand in closure sleeve pipe etc. is drilled through；
（2）Under enter ductus arteriosus occluder structure, prevent the pressure in oil reservoir from entering in higher level's sleeve pipe or oil pipe；
（3）Open mode is transformed into from sealed condition：With oil pipe or other butt tubes, inner tube is shifted onto open shape directly
State.
The utility model is rational in infrastructure, dependable performance, it is achieved that the pressure from inside and outside down-hole plugging pipeline, isolation sleeve pipe,
Achieving can be with the workover treatment of actuating oil-pumping unit with pressure, oil pipe or sleeve pipe, it is achieved that safe efficient, environmental protection, production energy-saving.
Description of the drawings
Below in conjunction with accompanying drawing, the utility model will be further described, closure of the Fig. 1 for the utility model embodiment 1
State cross section structure diagram, Fig. 2 are 1 open mode cross section structure diagram of the utility model embodiment, and Fig. 3 is that this practicality is new
1 firm mated condition cross section structure diagram of type embodiment, Fig. 4 are illustrated for 2 sealed condition sectional structure of the utility model embodiment
Figure.
Specific embodiment
A kind of down-hole plugging device of sleeve pipe snubbing serving method, embodiment 1 as shown in Figure 1, Figure 2, Figure 3 shows, in higher level
The lower end of sleeve pipe 1 is connected to block sleeve pipe 2 by transition taper seat, and the diameter for blocking sleeve pipe 2 is less than the diameter of higher level sleeve pipe 1,
Limiting stand 8 is set on the inwall of closure sleeve pipe 2, tube wall is connected to by transition taper seat in the lower end of closure sleeve pipe 2 equal
The through hole screen casing 3 of cloth through hole, through hole screen casing 3 are connected to righting pipe 4, the diameter of righting pipe 4 and closure set by transition taper seat
The equal diameters of pipe 2, arrange passage 9 in the sealing of the lower end of righting pipe 4, coordinate under being installed with closure sleeve pipe 2
The closure blind pipe 5 of mouth closing, arranges on-off connector 7 on the upper orifice for blocking blind pipe 5, by close on the outer wall of closure blind pipe 5
Seal ring groove is installed with sealing ring 6, and closure blind pipe 5 is engaged with closure sleeve pipe 2 or righting pipe 4 by sealing ring 6.Sealing ring 6
Quantity is 1-4.Butt tube or oil pipe 10 are connected with closure blind pipe 5 by on-off connector 7.Embodiment 2, original as shown in Figure 4
If plugging structure is damaged, also compensation process, stopping means is limiting stand 8 or is fixing seal cylinder 11, in fixing seal
Coordinate in cylinder 11 and plugging device base tube 12 is installed.Plugging device base tube 12 is connected to production string 13, in the case where positive stop lug boss 14 is located at
Outer oil-in 15 is set on the production string 13 of side, is coordinated in production string 13 and inner tube 16 is installed, in 16 tube wall of inner tube
On the interior oil-in 17 corresponding with the outer oil-in 15 of production string 13 is set, inner tube 16 is by sealing ring 18 and oil reservoir set
13 inner wall sealing of pipe coordinates, and the upper end of inner tube 16 arranges on-off connector 19, the lower end mouth of pipe closing of production string 13.
Claims (5)
1. a kind of down-hole plugging device of sleeve pipe snubbing serving method, is characterized in that：In higher level's sleeve pipe（1）Lower end passed through
Cross taper seat to be connected to block sleeve pipe（2）, block sleeve pipe（2）Diameter than higher level sleeve pipe（1）Diameter little, closure sleeve pipe
（2）Inwall on stopping means is set, closure sleeve pipe（2）Lower end the uniform through hole of tube wall is connected to by transition taper seat
Through hole screen casing（3）, through hole screen casing（3）Righting pipe is connected to by transition taper seat（4）, righting pipe（4）Diameter and closure
Sleeve pipe（2）Equal diameters, in righting pipe（4）Lower end sealing on passage is set（9）, in closure sleeve pipe（2）Inside match somebody with somebody
Close the closure blind pipe for being installed with lower mouth closing（5）Or plugging device, block blind pipe（5）Or uncoupling is set on the upper orifice of plugging device
Device（7）, in closure blind pipe（5）Outer wall on sealing ring is installed with by closure gasket groove（6）, block blind pipe（5）By sealing ring
（6）With closure sleeve pipe（2）Or righting pipe（4）It is engaged, or down-hole plugging is realized by plugging device.
2. a kind of down-hole plugging device of sleeve pipe snubbing serving method according to claim 1, is characterized in that：Sealing ring
（6）Quantity be 1-4 only.
3. a kind of down-hole plugging device of sleeve pipe snubbing serving method according to claim 1, is characterized in that：Butt tube
Or oil pipe（10）By on-off connector（7）With closure blind pipe（5）It is connected.
4. a kind of down-hole plugging device of sleeve pipe snubbing serving method according to claim 1, is characterized in that：Spacing dress
It is set to limiting stand（8）Or be fixing seal cylinder（11）, in fixing seal cylinder（11）Interior cooperation is installed with plugging device base tube（12）.
5. a kind of down-hole plugging device of sleeve pipe snubbing serving method according to claim 4, is characterized in that：Plugging device
Base tube（12）It is connected to production string（13）, it is being located at positive stop lug boss（14）The production string of lower section（13）On outer oil-feed is set
Mouthful（15）, in production string（13）Interior cooperation is installed with inner tube（16）, in inner tube（16）Arrange on tube wall and production string
（13）Outer oil-in（15）Corresponding interior oil-in（17）, inner tube（16）By sealing ring（18）With production string（13）Interior
Wall sealing coordinates, inner tube（16）Upper end on-off connector is set（19）, production string（13）The closing of the lower end mouth of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620747093.9U CN206016756U (en) | 2016-07-15 | 2016-07-15 | A kind of down-hole plugging device of sleeve pipe snubbing serving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620747093.9U CN206016756U (en) | 2016-07-15 | 2016-07-15 | A kind of down-hole plugging device of sleeve pipe snubbing serving method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206016756U true CN206016756U (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620747093.9U Active CN206016756U (en) | 2016-07-15 | 2016-07-15 | A kind of down-hole plugging device of sleeve pipe snubbing serving method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952410A (en) * | 2016-07-15 | 2016-09-21 | 克拉玛依胜利高原机械有限公司 | Underground blockage device of casing pressure balanced working method |
-
2016
- 2016-07-15 CN CN201620747093.9U patent/CN206016756U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952410A (en) * | 2016-07-15 | 2016-09-21 | 克拉玛依胜利高原机械有限公司 | Underground blockage device of casing pressure balanced working method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |