CN204402430U - A kind of periphery, old stuff pipe tieback position, shaft bottom cleaning device - Google Patents
A kind of periphery, old stuff pipe tieback position, shaft bottom cleaning device Download PDFInfo
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- CN204402430U CN204402430U CN201420864517.0U CN201420864517U CN204402430U CN 204402430 U CN204402430 U CN 204402430U CN 201420864517 U CN201420864517 U CN 201420864517U CN 204402430 U CN204402430 U CN 204402430U
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- urceolus
- inner core
- shaft bottom
- baffle
- periphery
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Abstract
The utility model discloses periphery, old stuff pipe tieback position, a kind of shaft bottom cleaning device, this device comprise from top to bottom connect successively top connection, urceolus, scraping assembly and guide shoe; Be provided with inner core in urceolus, inner core top is provided with valve seat, is provided with guiding cup above valve seat; Urceolus is provided with the baffle be uniformly distributed along the circumference, and baffle is provided with pod apertures, and inner core is provided with the through hole be uniformly distributed along the circumference; The bottom of urceolus is provided with the water hole be uniformly distributed along the circumference.Reacting cycle structure of the present utility model can more cleverly by sleeve outer wall scraping or scrub the dirt got off and take away with mud.With the scraping body of wing and the scraping body of steel wire brush, annular spread cleans in cylindrical shell separately, and cleaning effect is good.To ensure that sleeve pipe rejoining device can carry out effective sealing with the old sleeve outer wall in shaft bottom after benefit connects, improve sleeve pipe and mend the oil production after connecing.The utility model structure is ingenious, processing is simple, reliability is high, high financial profit.
Description
Technical field
the utility model relates to periphery, old stuff pipe tieback position, a kind of shaft bottom cleaning device, belongs to downhole tool technical field.
Background technology
after shaft bottom burn into damages, process is needed to damage sleeve pipe at Oil/gas Well middle sleeve.A kind of is duration short casing patching method: the patching tube of subsidizing a little bit smaller size at damaged sleeve pipe inside, but subsidy equipment and subsidy tubing all need import at present, if the longer required expense of damaged pipeline section is higher, casing inner diameter after subsidy diminishes, under enter other instruments and be easily hampered, the problem such as the anti-pressure ability that also there is subsidy place is poor, the life-span is low.So connection mended by a large amount of that adopt or sleeve pipe: bore damaged sleeve pipe, under enter sleeve pipe rejoining device and connect unspoiled old sleeve pipe, the new casing of tieback and old sleeve pipe same specification size above sleeve pipe rejoining device, recovery is as before.Sleeve pipe rejoining device is stung tight on the old sleeve pipe cylindrical in shaft bottom by toothed slips, and requires that the connection of rejoining device and old sleeve pipe cylindrical should seal.But, very thick patch can be had through the sleeve outer wall corroded for many years in shaft bottom, seal member is caused can not perfectly to fit tightly old sleeve pipe, especially all the more so in some old wells, there is shaft bottom and leak, affect oil production in the connecting portion causing new and old sleeve pipe to be mended connecing, situation seriously can cause oily spill incident.Therefore before carrying out old stuff pipe tieback, tackle old stuff pipe exterior periphery clear up.
Utility model content
the purpose of this utility model is, periphery, old stuff pipe tieback position, a kind of shaft bottom cleaning device is provided, to complete the cleaning work to old stuff pipe in down-hole, and guarantee that sleeve pipe rejoining device can carry out effective sealing with the old sleeve outer wall in shaft bottom after benefit connects, thus raising sleeve pipe is mended the oil production after connecing and is overcome the deficiencies in the prior art.
the technical solution of the utility model is achieved in that
periphery, old stuff pipe tieback position, a kind of shaft bottom of the present utility model cleaning device is, this device comprise from top to bottom connect successively top connection, urceolus, scraping assembly and guide shoe; Be provided with inner core in urceolus, inner core top is provided with valve seat, is provided with guiding cup above valve seat; Urceolus is provided with the baffle be uniformly distributed along the circumference, and baffle is provided with pod apertures, and inner core is provided with the through hole be uniformly distributed along the circumference; The bottom of urceolus is provided with the water hole be uniformly distributed along the circumference.
in aforementioned means, between described urceolus and inner core, be provided with mud circulation passage.
in aforementioned means, described urceolus is provided with the installing hole corresponding with baffle shape, and described baffle to be arranged in installing hole and to weld with urceolus; Pod apertures on baffle and the through hole compact siro spinning technology on inner core.
in aforementioned means, described scraping assembly comprises cylindrical shell and is distributed on steel wire brush board on cylinder inboard wall and scrapes knife plate.
in aforementioned means, described steel wire brush board with scrape knife plate and be connected through dovetail groove with cylindrical shell.
owing to have employed technique scheme, compared with prior art, reacting cycle structure of the present utility model can more cleverly by sleeve outer wall scraping or scrub the dirt got off and take away with mud for the utility model.With the scraping body of wing and the scraping body of steel wire brush, annular spread cleans in cylindrical shell separately, and cleaning effect is good.To ensure that sleeve pipe rejoining device can carry out effective sealing with the old sleeve outer wall in shaft bottom after benefit connects, improve sleeve pipe and mend the oil production after connecing.The utility model structure is ingenious, processing is simple, reliability is high, high financial profit.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model;
fig. 2 is the sectional view of A-A in Fig. 1;
fig. 3 is the sectional view of B-B in Fig. 1;
fig. 4 is mud circulation wiring diagram in scale removal process.
being labeled as in accompanying drawing: 1-top connection, 2-guide cup, 3-steel ball, 4-inner core, 5-valve seat, 6-urceolus, 7-cylindrical shell, 8-to scrape knife plate, 9-steel wire brush board, 10-through hole, 11-baffle, 12-pod apertures, 13-water hole, 14-guide shoe, 15-mud circulation passage.
Detailed description of the invention
below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to any restriction of the present utility model.
the utility model is constructed by following periphery, old stuff pipe tieback position, a kind of shaft bottom clean method, as shown in figures 1-4, the method utilizes cleaning device to drive wire brush and scraper simultaneously at periphery, old stuff pipe tieback position wiper, and take ground by scraping the impurity brushed down out of from down-hole by circulating mud in the process of wiper.Circulating mud cuts off circulating path when starting by pitching, forcing circulating mud from the bottom to top by wiper position, taking ground out of by predetermined circulating path by scraping the impurity brushed down from down-hole.Predetermined circulating path is as shown in Figure 4: the water hole bottom the mud circulation passage → urceolus of circulating mud → between urceolus and inner core → from guide shoe underlying space return → through hole → baffle of the wiper position → inner core of wire brush and scraper on pod apertures → return to ground along tool exterior wall.Wire brush adopts intensive steel wire scrubbing brush; Described scraper adopts spiral grooves scraper, and two kinds of different wiper Tool Rooms are every being interspersed.
according to periphery, old stuff pipe tieback position, the of the present utility model a kind of shaft bottom cleaning device that said method is formed, as shown in figures 1-4, this device comprise from top to bottom connect successively top connection 1, urceolus 6, scraping assembly and guide shoe 14; Be provided with inner core 4 in urceolus 6, inner core 4 top is provided with valve seat 5, is provided with and guides cup 2 above valve seat 5; Urceolus 6 is provided with the baffle 11 be uniformly distributed along the circumference, and baffle 11 is provided with pod apertures 12, and inner core 4 is provided with the through hole 10 be uniformly distributed along the circumference; The bottom of urceolus 6 is provided with the water hole 13 be uniformly distributed along the circumference.Mud circulation passage 15 is provided with between urceolus 6 and inner core 4.Urceolus 6 is provided with the installing hole corresponding with baffle 11 shape, and described baffle 11 to be arranged in installing hole and to weld with urceolus 6; Pod apertures 12 on baffle 11 and through hole 10 compact siro spinning technology on inner core 4.Scraping assembly comprises cylindrical shell 7 and the steel wire brush board 9 that is distributed on cylinder inboard wall and scrape knife plate 8.Steel wire brush board 9 with scrape knife plate 8 and be connected through dovetail groove with cylindrical shell 7.
Embodiment
the main device of this example is mainly used for sleeve pipe rejoining device and mends the outer wall before connecing to shaft bottom sleeve pipe and clean.Object improves the cleannes at old sleeve outer wall sealing position, shaft bottom, thus meet the sealing between rejoining device.Time clean, instrument is sent to assigned address by drilling rod connection by top connection 1, steel ball 3 is dropped into after turn on pump circulation, after steel ball 3 falls into guiding cup 2 with mud, by steel ball 3, valve seat 5 is sealed, block mud runner, force mud to change and flow to (as shown in heavy line and arrow in Fig. 4 direction), namely mud is shown in Fig. 2 and Fig. 4 with by the annular space mud circulation passage 15(between inner core 4 and urceolus 6), and flow out from water hole 13, through outer annular space, then upwards flow through instrument and casing annulus, flow out finally by through hole 10 and pod apertures 12 and return well head.After by judgement, well head confirms that mud has started circulation, rotate and upper and lower extraction tool, cylindrical shell 7 can drive to be scraped knife plate 8 and steel wire brush board 9 and carries out scraping at sleeve outer wall and clean, and the dirt being attached to sleeve outer wall is come off, and with mud together by punching to well head.The double action that final formation old stuff pipe cleans outward and circulates, both ensure that the clean of old sleeve outer wall, dirt can be made again to return well head and not pollute shaft bottom.
device of the present utility model primarily of: blank area, interior cartridge module, urceolus, scraping assembly and guide shoe five major part composition.
top connection 1 and urceolus 6 are threaded connection, and be mounted with inner core 4 in urceolus 6, interior cartridge module comprises inner core 4, and inner core top is provided with the valve seat 5 guiding cup 2.Urceolus 6 and inner core 4 looping space.Be threaded below urceolus 6 cylindrical shell 7; Cylindrical shell 7 inwall is provided with several dovetail grooves, be used for inlaying and scrape brush assemblies, scrape brush assemblies to comprise and scrape knife plate 8 and steel wire brush board 9 two kinds of forms, scrape knife plate 8 and scrape cutter hub for spiral grooves wing form, scraping portions is with helical tooth, and teeth portion has higher hardness after treatment, the requirement of the relatively large dirt of scraping can be met.Steel wire brush board 9 is intensive wire brush, with scrape knife plate 8 with the use of, by steel wire brush board 9, old sleeve outer wall is cleaned further after scraping knife plate 8 scraping dirt, thus improves the cleanliness factor of sleeve outer wall.Two kinds of different spaced even annulars of brush assemblies of scraping are distributed in clean cylindrical shell; Be connected with guide shoe 14 with screw thread below clean cylindrical shell, guide shoe 14 is provided with larger spiral and draws angle.
the Action Specification of each component in the utility model
top connection 1 is used for meeting instrument and is threaded with top drilling tool.Be sealed and matched with valve seat 5 bottom can dropping smoothly after guiding cup 2 to be used for forcing steel ball 3 to drop into.Steel ball 3 is the steel ball of specially treated, is used for being sealed and matched with valve seat 5.Inner core 4 is formed by welding processing, and and there is annular space between urceolus 6, so that mud flows in annular space.Valve seat 5 is main to be sealed and matched with steel ball 3, forces mud to change the flow direction.Urceolus 6 and inner barrel 4 are welded to form the circulation cylindrical shell that can change mud flow.Cylindrical shell 7 is made up of a cylindrical shell with some oat tail groove structures.Scraping assembly comprises scrapes knife plate 8 and steel wire brush board 9 two kinds of forms, steel wire brush board 9 is intensive wire brush, scrape knife plate 8 and scrape cutter hub for spiral grooves wing form, two kinds different scrapes the spaced even annular of brush assemblies and to be distributed in clean cylindrical shell (see figure 3) for clean old cylindrical shell; The cylindrical shell composition that guide shoe 14 guides with spiral, is mainly used to carry out outer wall in the smooth entering tool of guiding shaft bottom old stuff pipe and cleans.
Claims (5)
1. periphery, a shaft bottom old stuff pipe tieback position cleaning device, comprise from top to bottom connect successively top connection (1), urceolus (6), scraping assembly and guide shoe (14); It is characterized in that: in urceolus (6), be provided with inner core (4), inner core (4) top is provided with valve seat (5), and valve seat (5) top is provided with and guides cup (2); Urceolus (6) is provided with the baffle (11) be uniformly distributed along the circumference, and baffle (11) is provided with pod apertures (12), and inner core (4) is provided with the through hole (10) be uniformly distributed along the circumference; The bottom of urceolus (6) is provided with the water hole (13) be uniformly distributed along the circumference.
2. periphery, shaft bottom old stuff pipe tieback position cleaning device according to claim 1, is characterized in that: be provided with mud circulation passage (15) between described urceolus (6) and inner core (4).
3. periphery, shaft bottom old stuff pipe tieback position cleaning device according to claim 1, it is characterized in that: described urceolus (6) is provided with the installing hole corresponding with baffle (11) shape, described baffle (11) to be arranged in installing hole and to weld with urceolus (6); Pod apertures (12) on baffle (11) and through hole (10) compact siro spinning technology on inner core (4).
4. periphery, shaft bottom old stuff pipe tieback position cleaning device according to claim 1, is characterized in that: described scraping assembly comprises cylindrical shell (7) and the steel wire brush board (9) that is distributed on cylinder inboard wall and scrape knife plate (8).
5. periphery, shaft bottom old stuff pipe tieback position cleaning device according to claim 4, is characterized in that: described steel wire brush board (9) with scrape knife plate (8) and be connected through dovetail groove with cylindrical shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864517.0U CN204402430U (en) | 2014-12-29 | 2014-12-29 | A kind of periphery, old stuff pipe tieback position, shaft bottom cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864517.0U CN204402430U (en) | 2014-12-29 | 2014-12-29 | A kind of periphery, old stuff pipe tieback position, shaft bottom cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402430U true CN204402430U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420864517.0U Active CN204402430U (en) | 2014-12-29 | 2014-12-29 | A kind of periphery, old stuff pipe tieback position, shaft bottom cleaning device |
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| CN (1) | CN204402430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852398A (en) * | 2019-04-25 | 2020-10-30 | 中国石油天然气集团有限公司 | Combined sleeve cleaning device |
-
2014
- 2014-12-29 CN CN201420864517.0U patent/CN204402430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852398A (en) * | 2019-04-25 | 2020-10-30 | 中国石油天然气集团有限公司 | Combined sleeve cleaning device |
| CN111852398B (en) * | 2019-04-25 | 2024-05-28 | 中国石油天然气集团有限公司 | Combined sleeve cleaning device |
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