CN205591887U - Controllable multi -functional wall scraping device of scraper - Google Patents
Controllable multi -functional wall scraping device of scraper Download PDFInfo
- Publication number
- CN205591887U CN205591887U CN201620184274.5U CN201620184274U CN205591887U CN 205591887 U CN205591887 U CN 205591887U CN 201620184274 U CN201620184274 U CN 201620184274U CN 205591887 U CN205591887 U CN 205591887U
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- CN
- China
- Prior art keywords
- cast
- scraper
- scraper base
- ball seat
- base
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a controllable multi -functional wall scraping device of scraper which the lower extreme of top connection is connected with first cast and scrapes the blade holder, the lower extreme that the blade holder was scraped to first cast has the second cast to scrape the blade holder through middle muffjoint, the lower extreme that the blade holder was scraped to the second cast is connected with the sleeve of receiving through rose joint, the telescopic lower extreme of receiving is connected with the lower clutch, first cast is scraped blade holder and second cast and is scraped to inlay on the excircle of blade holder and be equipped with the scraper, first cast is scraped blade holder and second cast and is scraped the equal symmetry cover in both ends of blade holder and be equipped with sliding sleeve and piston, rose joint's lower extreme has first ball seat through first ball seat pin joint, and pin joint has the second ball seat through the second ball seat. The utility model discloses a bat to change the tubular column internal pressure, the card phenomenon of dying not only can not appear in the popping out and withdrawing of control scraper in the pit, has realized the purpose that tubular column can reach the drifting, scrape the wall, the well -flushing is integrated moreover.
Description
Technical field
This utility model relates to petroleum well workover and underground work technical field, is specifically related to a kind of scraper controlled
Multi-functional wall scraper.
Technical background
Wall scraper be mainly used in clearing up remain on oil well casing inwall cement block, cement sheath, hard wax,
The oxide etc. produced after various saline crystallization core deposits, perforation burrs and sleeve pipe corrosion, in order to each
Plant downhole tool to enter under straightway.The job specification of general wall scraper determines its scraper and begins
Bigger than instrument self external diameter eventually, than in sleeve pipe through little, reach to remove purpose by moving up and down of drilling tool.
Conventional wall scraper is in open configuration all the time, if instrument runs into bigger cement in down-hole due to scraper
During the slim-hole that block or borehole wall deformation cause, will pass through or cannot propose, cause down-hole
Accident.
Summary of the invention
This utility model solves the technical problem that: provide a kind of controlled multi-functional wall scraper of scraper, by throwing
Ball changes pressure in tubing string, controls ejection and the withdrawal of scraper, not only can remove oil well casing inwall smoothly
Barrier, effectively eliminate downhole safety hidden danger, and achieve one-trip string can reach drifting, scrape wall,
The purpose of well-flushing integration, does not particularly have stuck phenomenon in down-hole, causes down-hole accident.
Technical solution of the present utility model: a kind of controlled multi-functional wall scraper of scraper, has including center
There are top connection and the lower contact of through hole；The lower end of described top connection connects the first cast scraper base, described
The lower end of the first cast scraper base is connected by intermediate sleeve the second cast scraper base, described second cast
Received sleeve by ball joint in the lower end of scraper base, described in receive under the lower end connection of sleeve has
Joint.
The upper end of the lower end of described top connection, the two ends of intermediate sleeve and ball joint is respectively provided with annular groove,
Described annular groove is respectively arranged with the first spring vertically；Described first cast scraper base and the second cast are scraped
All it is evenly distributed three strip grooves on the cylindrical of tool rest, described strip groove is embedded with scraper, and
The second spring the most all it is embedded with between scraper bottom surface and strip groove.
The two ends symmetry of described scraper has first annular step and the second ring-shaped step；Described first cast
Two ends all symmetries of scraper base and the second cast scraper base are set with sliding sleeve and piston, and described piston is positioned at cunning
In set, and piston is connected with the first corresponding cast scraper base or the second cast scraper base by piston pin
Connect, make to be formed between piston and sliding sleeve outer end a sap cavity；Described sap cavity by the first cast scraper base or
Inlet opening that second cast scraper base correspondence is shaped with and the first cast scraper base or the second cast scraper base interior
Chamber is through；The inner internal diameter of described sliding sleeve is slightly larger than the external diameter of first annular step, the inner of described piston
Internal diameter is slightly larger than the external diameter of the second ring-shaped step.
The outer end of the sliding sleeve of described first cast scraper base upper end suit is inserted into annular after compressing the first spring
It is connected with top connection and intermediate sleeve respectively in groove and by release pin, described second cast scraper base
The outer end of the sliding sleeve of upper end suit is inserted in annular groove after compressing the first spring and is divided by release pin
It is not connected with intermediate sleeve and ball joint, and the inner of sliding sleeve is fitted in first annular of scraper two ends
On rank, make scraper compress the second spring and be retracted to state concordant with sliding sleeve cylindrical.
The lower end of described ball joint is connected by the first ball seat pin has the first ball seat, by the second ball seat
Pin connects the second ball seat, and the internal diameter of the first ball seat is more than the internal diameter of the second ball seat, and makes the first ball
Seat is positioned at the top of the second ball seat.
Three bars all it have been evenly distributed on the cylindrical of described first cast scraper base and the second cast scraper base
Connected in star, and three strip grooves being positioned on the first cast scraper base be positioned on the second cast scraper base
Three strip grooves be staggered circumferentially from one another, make in six strip grooves six scraper phases of setting-in
Cooperation circumferentially realizes 360 ° of all standings mutually.
This utility model has the advantage that and effect:
1, this utility model is by pressure in pitching change tubing string, controls ejection and the withdrawal of scraper, not only
The barrier of oil well casing inwall can be removed smoothly, effectively elimination downhole safety hidden danger, and in down-hole not
There will be stuck phenomenon, cause down-hole accident.
2, this utility model lower end can connect drill bit, the footwear that rub, milling shoe, it is achieved one-trip string gone into the well brill,
Rub, milling, scrape the multi-mode operation such as wall, well-flushing.
3, this utility model lower end can directly couple drift size gauge tool, it is achieved one-trip string go into the well can complete drifting,
Scrape the multinomial underground work such as wall, well-flushing.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of this utility model original state,
Fig. 2 is the partial enlarged drawing of Fig. 1,
Fig. 3 is the partial enlarged drawing of Fig. 1；
Fig. 4 is the partial enlarged drawing that this utility model scraper ejects state,
Fig. 5 is the state partial enlarged drawing after this utility model the second ball seat is destroyed,
Fig. 6 is the partial enlarged drawing of this utility model scraper retracted state,
Fig. 7 is the state partial enlarged drawing after this utility model first, second ball seat is all destroyed.
Detailed description of the invention
In conjunction with accompanying drawing 1-7, a kind of embodiment of the present utility model is described.
A kind of scraper multi-functional wall scraper of recoverable liquid, including center have through hole top connection 1 and under
Joint 21, the lower end of described top connection 1 connects the first cast scraper base 2, described first cast scraper
The lower end of seat 2 is connected by intermediate sleeve 9 the second cast scraper base 22, described second cast scraper base
Received sleeve 12 by ball joint 10 in the lower end of 22, described in receive the lower end connection of sleeve 12
There is lower contact 21；
The upper end of the lower end of described top connection 1, the two ends of intermediate sleeve 9 and ball joint 10 is respectively provided with ring
Connected in star 13, is respectively arranged with the first spring 3 vertically in described annular groove 13；Described first cast scraper
Three strip grooves 14, described bar shaped all it is evenly distributed on the cylindrical of seat 2 and the second cast scraper base 22
Groove 14 is embedded with between scraper 7, and scraper 7 bottom surface and strip groove 14 and is the most all embedded with
Two springs 8, and make three strip grooves 14 being positioned on the first cast scraper base 2 and be positioned at the second cast
Three strip grooves 14 on scraper base 22 are staggered circumferentially from one another, make in six strip grooves 14
Six scrapers 7 of setting-in cooperate and circumferentially realize 360 ° of all standings.
The two ends symmetry of described scraper 7 has first annular step 15 and the second ring-shaped step 16；Described
Two ends all symmetries of one cast scraper base 2 and the second cast scraper base 22 are set with sliding sleeve 4 and piston 5,
Described piston 5 is positioned at sliding sleeve 4, and piston 5 is scraped with the first corresponding cast by piston pin 17
Tool rest 2 or the second cast scraper base 22 connect, and make to be formed between piston 5 and sliding sleeve 4 outer end a sap cavity
23；Described sap cavity 23 is by entering that the first cast scraper base 2 or the second cast scraper base 22 correspondence are shaped with
Fluid apertures 24 is through with the inner chamber of the first cast scraper base 2 or the second cast scraper base 22；Described sliding sleeve 4
Inner internal diameter slightly larger than the external diameter of first annular step 15, the inner internal diameter of described piston 5 is slightly larger than the
The external diameter of second ring step 16；
Plug-in mounting after the first spring 3 is compressed in the outer end of the sliding sleeve 4 of described first cast scraper base 2 upper end suit
It is connected with top connection 1 and intermediate sleeve 9 respectively in annular groove 13 and by release pin 6, described
It is recessed that the outer end of the sliding sleeve 4 of the second cast scraper base 2 upper end suit is inserted into annular after compressing the first spring 3
It is connected with intermediate sleeve 9 and ball joint 10 respectively in groove 13 and by release pin 6, and sliding sleeve 4
The inner be fitted on the first annular step 15 at scraper 7 two ends, make scraper 7 compress the second spring 8 and contract
It is back to and the sliding sleeve 4 concordant state of cylindrical；
The lower end of described ball joint 10 is connected by the first ball seat pin 18 the first ball seat 11, passes through
Second ball seat pin 19 connects the second ball seat 20, and the internal diameter of the first ball seat 11 is more than the second ball seat 20
Internal diameter, and make the first ball seat 11 be positioned at the top of the second ball seat 20.
Operation principle: after this utility model being connected on tubing string with arriving downhole designs position under tubing string,
Put into a small ball in tubing string for the first time, small ball setting after the second ball seat 20 again to tubing string suppress to
During about 5.4MPa, well liquid enters sap cavity 23 from inlet opening 24 and promotes sliding sleeve 4 to cut off release pin 6,
Sliding sleeve 4 compresses after the first spring 3 departs from the first annular step 15 at scraper 7 two ends and is pressed in scraper 7 two ends
The second ring-shaped step 16 on, scraper 7 all ejects under the effect of the second spring 8.Continue to be forced into
10MPa, cuts off the second ball seat pin 19 and destroys the second ball seat 20, the second ball seat 20 and small ball from receiving
What sleeve 12 fell into lower contact 21 upper end receives in basket, will start to scrape wall operation after pressure release in tubing string.
When scraping after wall operation completes, in tubing string, second time puts into a big steel ball, and big steel ball is setting at the first ball
Seat 11 after again to keep a grip on suppress to about 16.2MPa time, well liquid enters sap cavity 23 from inlet opening 24 and promotes
Piston 5 cuts off piston pin 17, continues to be forced into 21MPa and makes the inner of piston 5 be pressed in scraper 7 two ends
The second ring-shaped step 16 on, scraper 7 is all regained.Continue to be forced into 27.6MPa, cut off first
Ball seat pin 18 is destroyed the first ball seat 11, the first ball seat 11 and big steel ball and is fallen into down connect from sleeve 12 of receiving
21 upper ends receive in basket, meanwhile, press again in the inner of the effect low sleeve 4 of the first spring 3
On the first annular step 15 at scraper 7 two ends, it is drilled into shaft bottom and starts to wash under after pressure release in tubing string
Well operations, now this utility model returns to original state of going into the well, and tubing string is proposed after completing by clean-out service
?.Unload lower contact 21, sleeve 12 of receiving, ball joint 10 and piston 5, sliding sleeve 4, take out and throw
The steel ball entered and the ball seat destroyed, reconnect the first ball in the lower end of ball joint 10 by ball seat pin
Seat 11 and the second ball seat 20, by fixed 17 weights of piston pin on the first scraper base 2 and the second scraper base 22
Assembling sliding sleeve 4 after new connection piston 5, entirety again assembles and can carry out operation next time.
The lower end of this utility model lower contact 21 can directly couple drift size gauge tool, can complete during going into the well
Drifting operation, it is achieved that one-trip string is gone into the well can complete drifting, scrape the multinomial underground work such as wall, well-flushing.
This utility model lower contact 21 can connect drill bit, the footwear that rub, milling shoe, it is achieved one-trip string gone into the well brill,
Rub, milling, scrape the multi-mode operation such as wall, well-flushing.
Above-described embodiment, preferred embodiment the most of the present utility model, not it is used for limiting this utility model
Practical range, therefore all equivalent variations done with content described in this utility model claim, all should include
Within this utility model right.
Claims (2)
1. the controlled multi-functional wall scraper of scraper, has the top connection (1) of through hole including center
With lower contact (21), it is characterised in that: the lower end of described top connection (1) connects first
Cast scraper base (2), intermediate sleeve (9) is passed through in the lower end of described first cast scraper base (2)
Connecting and have the second cast scraper base (22), the lower end of described second cast scraper base (22) leads to
Cross ball joint (10) to receive sleeve (12), described in receive under sleeve (12)
End connection has lower contact (21)；
The lower end of described top connection (1), the two ends of intermediate sleeve (9) and ball joint (10)
Upper end be respectively provided with annular groove (13), described annular groove is respectively arranged with in (13) vertically
First spring (3)；Described first cast scraper base (2) and the second cast scraper base (22)
Cylindrical on be all evenly distributed three strip grooves (14), in described strip groove (14)
It is embedded with between scraper (7), and scraper (7) bottom surface and strip groove (14) the most equal
It is embedded with the second spring (8)；
The two ends symmetry of described scraper (7) has first annular step (15) and the second annular
Step (16)；Described first cast scraper base (2) and the second cast scraper base (22)
Two ends all symmetries are set with sliding sleeve (4) and piston (5), and described piston (5) is positioned at sliding sleeve
(4) in, and piston (5) is by piston pin (17) and the first corresponding cast scraper
Seat (2) or the second cast scraper base (22) connect, and make piston (5) with sliding sleeve (4) outward
A sap cavity (23) is formed between end；Described sap cavity (23) passes through the first cast scraper base (2)
Or second inlet opening (24) that is shaped with of cast scraper base (22) correspondence and the first cast scraper base
(2) inner chamber of or the second cast scraper base (22) is through；In the inner of described sliding sleeve (4)
Footpath is slightly larger than the external diameter of first annular step (15), and the inner internal diameter of described piston (5) is slightly
External diameter more than the second ring-shaped step (16)；
The outer end compression first of the sliding sleeve (4) of described first cast scraper base (2) upper end suit
It is inserted into after spring (3) in annular groove (13) and by release pin (6) respectively with upper
Joint (1) and intermediate sleeve (9) connect, described second cast scraper base (2) upper end set
The outer end of the sliding sleeve (4) of dress is inserted in annular groove (13) after compressing the first spring (3)
And be connected with intermediate sleeve (9) and ball joint (10) respectively by release pin (6),
And the inner of sliding sleeve (4) is fitted on the first annular step (15) at scraper (7) two ends,
Make scraper (7) compress the second spring (8) to be retracted to and the concordant state of sliding sleeve (4) cylindrical；
The lower end of described ball joint (10) is connected by the first ball seat pin (18) first
Ball seat (11), is connected by the second ball seat pin (19) and has the second ball seat (20), and the
The internal diameter of one ball seat (11) is more than the internal diameter of the second ball seat (20), and makes the first ball seat (11)
It is positioned at the top of the second ball seat (20).
2., according to the controlled multi-functional wall scraper of a kind of scraper described in claim (1), it is special
Levy and be: described first cast scraper base (2) and the cylindrical of the second cast scraper base (22)
On be all evenly distributed three strip grooves (14), and be positioned at the first cast scraper base (2)
On three strip grooves (14) and three bar shapeds being positioned on the second cast scraper base (22)
Groove (14) is staggered circumferentially from one another, makes six be embedded in six strip grooves (14)
Individual scraper (7) cooperates and circumferentially realizes 360 ° of all standings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620184274.5U CN205591887U (en) | 2016-03-10 | 2016-03-10 | Controllable multi -functional wall scraping device of scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620184274.5U CN205591887U (en) | 2016-03-10 | 2016-03-10 | Controllable multi -functional wall scraping device of scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205591887U true CN205591887U (en) | 2016-09-21 |
Family
ID=56929217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620184274.5U Withdrawn - After Issue CN205591887U (en) | 2016-03-10 | 2016-03-10 | Controllable multi -functional wall scraping device of scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205591887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625986A (en) * | 2016-03-10 | 2016-06-01 | 宝鸡市奥通石油机械有限责任公司 | Scraper-controllable multifunctional wall scraping device |
| WO2019155074A1 (en) * | 2018-02-12 | 2019-08-15 | Odfjell Partners Invest Ltd | Downhole cleaning apparatus |
-
2016
- 2016-03-10 CN CN201620184274.5U patent/CN205591887U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625986A (en) * | 2016-03-10 | 2016-06-01 | 宝鸡市奥通石油机械有限责任公司 | Scraper-controllable multifunctional wall scraping device |
| CN105625986B (en) * | 2016-03-10 | 2017-12-26 | 宝鸡市奥通石油机械有限责任公司 | A kind of controllable multi-functional wall scraper of scraper |
| WO2019155074A1 (en) * | 2018-02-12 | 2019-08-15 | Odfjell Partners Invest Ltd | Downhole cleaning apparatus |
| US11655691B2 (en) | 2018-02-12 | 2023-05-23 | Odfjell Technology Invest Ltd | Downhole cleaning apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160921 Effective date of abandoning: 20171226 |