CN208236385U - Pitching it can bore the integrated wall scraper of mill three times - Google Patents
Pitching it can bore the integrated wall scraper of mill three times Download PDFInfo
- Publication number
- CN208236385U CN208236385U CN201820770392.3U CN201820770392U CN208236385U CN 208236385 U CN208236385 U CN 208236385U CN 201820770392 U CN201820770392 U CN 201820770392U CN 208236385 U CN208236385 U CN 208236385U
- Authority
- CN
- China
- Prior art keywords
- seat
- mandrel
- scraper
- piston
- cutter block
- 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
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- Crushing And Grinding (AREA)
Abstract
A kind of petroleum underground work pitching can bore three times and grind integrated wall scraper, by upper bush, piston control mechanism, mandrel body, scraper cover for seat, upper blade assembly, lower coating blade assembly and lower sleeve composition, piston control mechanism is in upper bush, it is by cylinder barrel, lock ring set, piston, control ring, lock ring, upper ball base and middle ball seat composition, mandrel body is in scraper cover for seat, and it is fixed by shear pin B, it is by mandrel, spring pocket and lower ball base composition, lower ball base lower end is provided with slot, it is in mandrel, and it is fixed on mandrel by shear pin F, mandrel is axially being provided with boss and groove；Upper blade assembly is made of cutter block, cutter block seat, spacer pin, pressure spring, reset spring and briquetting, wherein cutter block is on cutter block seat, and it is radially limited by spacer pin, the great advantage of the utility model is, a time brill can be achieved to bore mill and scrape wall operation, and it can smoothly pull out of hole, greatly improve operating efficiency and avoid the generation of down-hole accident to greatest extent.
Description
Technical field
Pitching the integrated wall scraper of mill can be bored three times the utility model relates to a kind of petroleum underground work.
Background technique
Original wall scraper, cutter block is in stretching state, i.e. the scraping borehole wall when going into the well during going into the well, after scraping is complete
Pitching makes cutter block be in contraction state, to pull out of hole, be not able to satisfy can the scraping borehole wall can bore the needs of mill again.
Summary of the invention
In order to overcome the shortcomings of original wall scraper, the utility model, which provides one kind, the integration of pitching brill mill to scrape wall three times
Device, the scraping borehole wall when going into the well, under to pitching after certain depth make cutter block shrink carry out drilling and grinding operation, bore mill after again pitching make knife
Block stretches out the borehole wall after carrying out scraping brill mill, and pitching makes cutter block be in contraction state again after scraping is complete, to smoothly pull out of hole.
The technical scheme adopted by the utility model to solve the technical problem is as follows: the utility model is by upper bush, piston control
Mechanism, mandrel body, scraper cover for seat, upper blade assembly, lower coating blade assembly and lower sleeve processed form, wherein upper bush, scraper
Cover for seat and lower sleeve are successively threadedly coupled, and scraper base puts on the slot for being provided with installation blade combination body, and big pressure spring is mounted in and traps
In cylinder.Piston control mechanism is in upper bush, it is by cylinder barrel, lock ring set, piston, control ring, lock ring, upper ball base and middle ball seat
Composition, wherein cylinder barrel and lock ring set can be threadedly coupled, and can also not had to screw thread and are directly installed in together, to be easy to assembly,
It is preferably threadedly coupled, piston and control set are fixed in cylinder barrel with shear pin A and shear pin D respectively, and lock ring is mounted in control ring and lock
Between ring set, upper ball base and middle ball seat are fixed on piston with shear pin C and shear pin E respectively, are equipped on above-mentioned piston and lock ring
Ratchet, middle ball seat lower end are provided with slot；Mandrel body is made of mandrel, spring pocket and lower ball base, and wherein mandrel and spring apply spiral shell
Line links together, and in scraper cover for seat, and is fixed by shear pin B, and lower ball base lower end is provided with slot, it is mounted in mandrel, and
It is fixed on mandrel by shear pin F, mandrel is axially being provided with boss and groove；Upper blade assembly is by cutter block, cutter block seat, limit
Pin, pressure spring, reset spring and briquetting composition, wherein cutter block radially limits on cutter block seat, and by spacer pin, and pressure spring is mounted in knife
Between block and cutter block seat, reset spring is limited, above-mentioned pressure spring at least two, cutter block appearance on cutter block seat by briquetting
Face can be rectangular coil, be also possible to trapezoid spiral, to improve scraping ability, preferably rectangular coil, upper blade assembly
Two sets are at least arranged in scraper cover for seat circumferential direction, lower coating blade assembly and upper blade assembly can be the same structure, can also
To be different structure, to be easy to process, preferably the same structure, it on scraper cover for seat is circumferential at least provided with two sets, in addition to
Outside upper blade assembly and lower coating blade assembly, can also one or more groups of blade combination bodies, but scraper group be axially set again
Zoarium is at axially at least two groups, and each group blade combination body is circumferential interlaced.Cutter block is in stretching state when use, under side
The well just scraping borehole wall, under to pitching after certain depth, ball is fallen on lower ball base by upper ball base and middle ball seat, and turn on pump is suppressed, first
Shear pin F is cut again after cutting shear pin B, and at this moment downlink is fallen on spring pocket together for ball and lower ball base, due to lower ball base lower end peripheral
It is provided with slot, liquid eliminates pump pressure by the slot circulation that flows downward, and mandrel moves upward under the effect of big pressure spring elastic force
Piston, while under the action of reset spring, cutter block seat is in the groove part of mandrel, and cutter block is therewith into cutter block cover for seat
The heart shrink without with casing wall friction, at this moment carry out drilling and grinding operation；Pitching again after grinding is bored, ball falls on middle ball seat by upper ball base
Place, turn on pump suppresses, and piston pushes mandrel downlink together after cutting shear pin A, until piston is gone downwards at control ring, at this moment cutter block seat
Move to the convex portion of mandrel, while cutter block is stretched out to carry out scraping to casing wall, due to control ring blocking prevent piston from
It continues traveling downwardly, with pressure rise, the shear pin E on middle ball seat is cut, and middle ball seat comes downwards to the end G of mandrel, during liquid passes through
The slot of ball seat lower end flows downward foundation circulation, at this moment due on lock ring and piston ratchet engagement and control ring to lock
The blocking of ring, mandrel cannot be moved upwards with piston, carry out the operation of scraping casing wall in this case；It needs to pull out of hole after scraping is complete
When, then the pitching into drill string, ball fall on pressure rise after upper ball base, first cuts shear pin D, then cut shear pin C, at this moment upper ball base and
Downlink can flow downward down to liquid and establish circulation ball together, and big spring pushes mandrel and piston upwards, so that knife
Block is in the groove part of mandrel, cutter block therewith to cutter block cover for seat central reduction without with casing wall friction, thus smoothly into
Row trip-out operation.
It the utility model has the beneficial effects that one time is bored and can be achieved to bore mill and scrape wall operation, and can smoothly pull out of hole, mention significantly
High operating efficiency and the generation for avoiding down-hole accident to greatest extent.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawings and examples.
Attached drawing 1 is the structural schematic diagram of the utility model,
Attached drawing 2 is the partial enlarged view of the part H in attached drawing 1.
1. upper bush in figure, 2. shear pin A, 3. pistons, 4. cylinder barrels, 5. control rings, 6. lock rings, 7. lock ring sets, 8. mandrels, 9.
Shear pin B, 10. upper blade assemblys, 11. pressure springs, 12. cutter blocks, 13. cutter block seats, 14. spacer pins, 15. reset springs, 16. pressures
Block, 17. scraper cover for seat, 18. big pressure springs, 19. spring pockets, 20. lower sleeves, 21. upper ball bases, 22. shear pin C, 23. shear pin D, 24.
Shear pin E, ball seat in 25., 26. lower ball bases, 27. shear pin F, 28. lower coating blade assemblys.
Specific embodiment
Upper bush 1, scraper cover for seat 17 and lower sleeve 20 are successively threadedly coupled in the figure, and peace is provided in scraper cover for seat 17
The slot of blade combination body is filled, big pressure spring 18 is in lower sleeve 20；Piston control mechanism is in upper bush 1, it is by cylinder barrel
4, lock ring set 7, piston 3, control ring 5, lock ring 6, upper ball base 21 and middle ball seat 25 form, and wherein cylinder barrel 4 and lock ring set 7 use screw thread
Connection, piston 3 and control ring 5 are fixed in cylinder barrel 4 with shear pin A2 and shear pin D23 respectively, and lock ring 6 is mounted in control ring 5 and lock ring
Between set 7, upper ball base 21 and middle ball seat 25 are fixed on piston 3 with shear pin C22 and shear pin E24 respectively, above-mentioned piston 3 and lock ring
Ratchet is equipped on 6, middle 25 lower end of ball seat is provided with slot；Mandrel body is made of mandrel 8, spring pocket 19 and lower ball base 26, wherein
Together with mandrel 8 is threadedly coupled with spring pocket 19, in scraper cover for seat 17, and fixed by shear pin B9,26 lower end of lower ball base
It is provided with slot, it is fixed in mandrel 8 by shear pin F27, and mandrel 8 is axially being provided with boss and groove；Upper blade combination
Body 10 is made of cutter block 12, cutter block seat 13, spacer pin 14, pressure spring 11, reset spring 15 and briquetting 16, and wherein cutter block 12 is mounted in knife
It on block 13, and is limited by spacer pin 14 is radial, pressure spring 11 is mounted between cutter block 12 and cutter block seat 13, and reset spring 15 is mounted in knife
It on block 13, and is limited by briquetting 16,12 outer surface of cutter block is machined with rectangular coil, and upper blade assembly was at scraper cover for seat 17 weeks
To being equipped with three sets, lower coating blade assembly 28 and upper blade assembly 10 are the same structures, it is circumferentially in scraper cover for seat 17
Three sets, upper and lower blade combination body is circumferential interlaced.
Claims (6)
1. a kind of petroleum underground work pitching can bore the integrated wall scraper of mill three times, machine is controlled by upper bush (1), piston
Structure, mandrel body, scraper cover for seat (17), upper blade assembly, lower coating blade assembly and lower sleeve (20) form, wherein upper bush
(1), scraper cover for seat (17) and lower sleeve (20) are successively threadedly coupled, and installation blade combination body is provided in scraper cover for seat (17)
Slot, big pressure spring (18) is in lower sleeve (20), and mandrel body is interior mounted in scraper cover for seat (17), wherein mandrel (8) and spring pocket
(19) it is threadedly coupled together, and fixed by shear pin B (9), lower ball base (26) is interior mounted in mandrel (8), and solid by shear pin F (27)
Fixed, upper blade assembly (10) and lower coating blade assembly (28) on scraper cover for seat (17) and are being circumferentially with three sets respectively,
They are interlaced in circumferential direction, it is characterized in that upper bush (1) is provided with piston control mechanism, mandrel (8) is provided with convex in axial direction
Platform and groove.
2. according to claim 1 pitching can bore the integrated wall scraper of mill three times, it is characterized in that piston control mechanism is by cylinder
Cylinder (4), lock ring set (7), piston (3), control ring (5), lock ring (6), upper ball base (21) and middle ball seat (25) composition, piston (3)
It is fixed in cylinder barrel (4) with shear pin A (2) and shear pin D (23) respectively with control ring (5), lock ring (6) is mounted in control ring (5) and locks
Between ring set (7).
3. according to claim 2 pitching can bore the integrated wall scraper of mill three times, it is characterized in that upper ball base (21) and middle ball
Seat (25) is fixed on piston (3) with shear pin C (22) and shear pin E (24) respectively.
4. according to claim 3 pitching can bore the integrated wall scraper of mill three times, it is characterized in that above-mentioned piston (3) and lock ring
(6) ratchet is equipped on, middle ball seat (25) lower end is provided with slot.
5. according to claim 1 pitching can bore the integrated wall scraper of mill three times, it is characterized in that lower ball base (26) lower end is opened
Grooved hole.
6. according to claim 1 pitching can bore the integrated wall scraper of mill three times, it is characterized in that upper blade assembly (10)
In cutter block (12) radially limited on cutter block seat (13), and by spacer pin (14), pressure spring (11) is mounted in cutter block (12) and knife
Between block (13), reset spring (15) limits on cutter block seat (13), and by briquetting (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770392.3U CN208236385U (en) | 2018-05-23 | 2018-05-23 | Pitching it can bore the integrated wall scraper of mill three times |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770392.3U CN208236385U (en) | 2018-05-23 | 2018-05-23 | Pitching it can bore the integrated wall scraper of mill three times |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236385U true CN208236385U (en) | 2018-12-14 |
Family
ID=64581042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820770392.3U Expired - Fee Related CN208236385U (en) | 2018-05-23 | 2018-05-23 | Pitching it can bore the integrated wall scraper of mill three times |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031709A (en) * | 2020-08-27 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | Integral mandrel ball-throwing opening type casing pipe scraper |
-
2018
- 2018-05-23 CN CN201820770392.3U patent/CN208236385U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031709A (en) * | 2020-08-27 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | Integral mandrel ball-throwing opening type casing pipe scraper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20210523 |