CN202866697U - Novel horizontal well mud cake washing device - Google Patents
Novel horizontal well mud cake washing device Download PDFInfo
- Publication number
- CN202866697U CN202866697U CN 201220597311 CN201220597311U CN202866697U CN 202866697 U CN202866697 U CN 202866697U CN 201220597311 CN201220597311 CN 201220597311 CN 201220597311 U CN201220597311 U CN 201220597311U CN 202866697 U CN202866697 U CN 202866697U
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- Prior art keywords
- pipe
- horizontal well
- valve seat
- spring
- spool
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a horizontal well washing device, in particular to a novel horizontal well mud cake washing device. The technical scheme is that the upper end of an outer pipe is connected with a valve seat, a coupling is fixed on the upper portion of the valve seat, the lower end of the outer pipe is connected with a pipe column, the tail end of the pipe column is connected with a guiding shoe, the junction of the outer pipe and the pipe column is fixed through a spring plate, a central pipe and a supporting pipe are fixed inside the outer pipe, and the central pipe is connected with the supporting pipe. A valve core, a spring and a spring push pipe are arranged in sequence from up to down inside the central pipe, the valve core is connected with the valve seat, a blocking plate is arranged between the valve core and the spring, a spacer bush is arranged on the outer side of the central pipe, and a seal ring is arranged inside the valve seat. The novel horizontal well mud cake washing device has the advantages of overcoming various difficulties in washing a horizontal well that well washing is incomplete, too much silts enter the valve, and the valve is not closed tightly and the like.
Description
Technical field
The utility model relates to a kind of horizontal well cleaning device, particularly a kind of New Horizontal Well mud cake cleaning device.
Background technology
Horizontal well mud cake cleaner belongs to petroleum machinery products, is the supporting special-purpose well-flushing instrument of horizontal well bore hole screen sand control completion.When horizontal well bore hole sieve tube completion, by in screen casing, being lowered to well-flushing pipe string and kit, adopt backwash or positive well-flushing mode and function that can be by its kit to carried out pickling, acidleach or small-sized acidifying by the stratum of drilling fluid contamination.By removing the pit shaft drilling mud to the pollution on stratum to the processing on stratum, reduce the stratum skin factor, improve the stratum infiltration condition and reduce stratum energy consumption, improve oil well output.The washer well-flushing that uses at present is incomplete, valve itself advances the problems such as silt is too many, valve is not closed completely, and cleaner structure middle external tube through hole exposes, and is very easily stopped up by silt, and the original guiding tapering of valve seat is less, is unfavorable for the unlatching of valve.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of New Horizontal Well mud cake cleaning device is provided.
Its technical scheme is: comprise box cupling, valve seat, sealing ring, spool, spacer, adjusting pad, closure plate, spring, central tube, envelope eye cover, the spring push pipe, stay pipe, outer tube, latch plate, tubing string, guide shoe, the upper end connecting valve seat of outer tube, valve seat top is box cupling fixedly, the lower end connecting leg post of outer tube, the terminal guide shoe that connects of tubing string, the junction of outer tube and tubing string is fixed by latch plate, inside fixed center pipe and the stay pipe of outer tube, central tube connects stay pipe, the inside of central tube is provided with spool from top to bottom successively, spring and spring push pipe, described spool connecting valve seat, be provided with closure plate between spool and the spring, the outside of central tube is provided with spacer, and above-mentioned valve seat inside is provided with sealing ring.
Be provided with many group envelope eye covers between above-mentioned central tube and the outer tube.
Above-mentioned central tube and the junction of spool are provided with positioning sleeve.
Be provided with adjusting pad between above-mentioned closure plate and the spool.
The beneficial effects of the utility model are: overcome all difficulties that exist in the horizontal well washing such as well-flushing is incomplete, valve itself advances the problems such as silt is too many, valve is not closed completely, through hole is enclosed after the improvement structure, guaranteed the smooth unlatching of valve itself, strengthened the guiding tapering of valve seat after the improvement, valve can be opened smoothly, with the spring filament diameter increasing of spring, has increased the reliability of closing of spool, stopped the possibility that silt enters, horizontal well mud cake cleaner also possesses sand-proof function.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Among the upper figure: box cupling 1, valve seat 2, sealing ring 3, spool 4, positioning sleeve 5, spacer 6, adjusting pad 7, closure plate 8, spring 9, central tube 10, envelope eye cover 11, spring push pipe 12, stay pipe 13, outer tube 14, latch plate 15, tubing string 16, guide shoe 17.
The specific embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises box cupling 1, valve seat 2, sealing ring 3, spool 4, positioning sleeve 5, spacer 6, adjusting pad 7, closure plate 8, spring 9, central tube 10, envelope eye cover 11, spring push pipe 12, stay pipe 13, outer tube 14, latch plate 15, tubing string 16, guide shoe 17, the upper end connecting valve seat 2 of outer tube 14, valve seat 2 tops are box cupling 1 fixedly, the lower end connecting leg post 16 of outer tube 14, the tubing string 16 terminal guide shoes 17 that connect, outer tube 14 is fixing by latch plate 15 with the junction of tubing string 16, inside fixed center pipe 10 and the stay pipe 13 of outer tube 14, central tube 10 connects stay pipe 13, the inside of central tube 10 is provided with spool 4 from top to bottom successively, spring 9 and spring push pipe 12, described spool 4 connecting valve seats 2, be provided with closure plate 8 between spool 4 and the spring 9, the outside of central tube 10 is provided with spacer 6, and described valve seat 2 inside are provided with sealing ring 3; Be provided with envelope eye cover 11 between described central tube 10 and the outer tube 14, described central tube 10 is provided with positioning sleeve 5 with the junction of spool 4, is provided with adjusting pad 7 between described closure plate 8 and the spool 4.
When going into the well, horizontal well mud cake cleaner is connected with the screen casing tail end, be lowered to predeterminated level well section flushing valve and screen casing together behind the precalculated position with screen casing, connect well-flushing pipe string by being lowered to the well-flushing kit by individual well operating tool string structure design again, be lowered to order down to the flushing valve position and open simultaneously flushing valve by tubing string.Can select arbitrarily just to wash or the backwash mode.Connect ground well-flushing flow process, enter clear water, anti-swollen liquid, treatment fluid etc. by ground well-washing truck pump group infusion in the well, carry out clean-out service.
Claims (4)
1. New Horizontal Well mud cake cleaning device, it is characterized in that: comprise box cupling (1), valve seat (2), sealing ring (3), spool (4), spacer (6), closure plate (8), spring (9), central tube (10), spring push pipe (12), stay pipe (13), outer tube (14), latch plate (15), tubing string (16), guide shoe (17), the upper end connecting valve seat (2) of outer tube (14), valve seat (2) top is box cupling (1) fixedly, the lower end connecting leg post (16) of outer tube (14), the terminal guide shoe (17) that connects of tubing string (16), outer tube (14) is fixing by latch plate (15) with the junction of tubing string (16), the inside fixed center pipe (10) of outer tube (14) and stay pipe (13), central tube (10) connects stay pipe (13), the inside of central tube (10) is provided with spool (4) from top to bottom successively, spring (9) and spring push pipe (12), described spool (4) connecting valve seat (2), be provided with closure plate (8) between spool (4) and the spring (9), the outside of central tube (10) is provided with spacer (6), and described valve seat (2) inside is provided with sealing ring (3).
2. New Horizontal Well mud cake cleaning device according to claim 1 is characterized in that: be provided with many group envelope eye covers (11) between described central tube (10) and the outer tube (14).
3. New Horizontal Well mud cake cleaning device according to claim 1 is characterized in that: described central tube (10) is provided with positioning sleeve (5) with the junction of spool (4).
4. New Horizontal Well mud cake cleaning device according to claim 1 is characterized in that: be provided with adjusting pad (7) between described closure plate (8) and the spool (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597311 CN202866697U (en) | 2012-11-14 | 2012-11-14 | Novel horizontal well mud cake washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597311 CN202866697U (en) | 2012-11-14 | 2012-11-14 | Novel horizontal well mud cake washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866697U true CN202866697U (en) | 2013-04-10 |
Family
ID=48033423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220597311 Expired - Fee Related CN202866697U (en) | 2012-11-14 | 2012-11-14 | Novel horizontal well mud cake washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821471A (en) * | 2014-02-20 | 2014-05-28 | 中国石油化工股份有限公司 | Method of processing cement sheath outside screen pipe after cementing well completion |
-
2012
- 2012-11-14 CN CN 201220597311 patent/CN202866697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821471A (en) * | 2014-02-20 | 2014-05-28 | 中国石油化工股份有限公司 | Method of processing cement sheath outside screen pipe after cementing well completion |
| CN103821471B (en) * | 2014-02-20 | 2016-08-17 | 中国石油化工股份有限公司 | The processing method of the outer cement sheath of cementing completion ethmoid canal,posterior |
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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: 20130410 Termination date: 20161114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |