CN208380553U - Scraping wall - Google Patents
Scraping wall Download PDFInfo
- Publication number
- CN208380553U CN208380553U CN201820713049.5U CN201820713049U CN208380553U CN 208380553 U CN208380553 U CN 208380553U CN 201820713049 U CN201820713049 U CN 201820713049U CN 208380553 U CN208380553 U CN 208380553U
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- CN
- China
- Prior art keywords
- wall
- scraping
- hole
- hydraulic
- upper shell
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- 238000007790 scraping Methods 0.000 title claims abstract description 69
- 238000009434 installation Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 241000565675 Oncomelania Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to the technical fields of sleeve in oil field inner wall dirt removing tool, it is a kind of scraping wall, it includes upper shell, lower shell, at least provided with two mounting grooves on the outer wall of upper shell, the hydraulic plate with the cooperation of hydraulic clear size of opening is provided in hydraulic through-hole, it is provided with disc in mounting groove, scraping block is provided in disc, ball seat sliding sleeve is provided in lower shell.The utility model reasonable and compact in structure, it carries out blocking on ball seat sliding sleeve by the way that stifled ball to be put into the utility model and build the pressure, first shear pin is broken automatically, and it is overhanging that hydraulic plate will push scraping block, and internal surface of sleeve pipe can be cleared up by lifting drilling tool, continue to build the pressure after cleaning, until second cuts pin fracture, ball seat sliding sleeve can move downward together with stifled ball, and the final circulation through-hole that exposes carries out pressure release, hydraulic plate and scraping block bounce back reset under the action of the spring, time saving and energy saving.
Description
Technical field
The utility model relates to the technical fields of sleeve in oil field inner wall dirt removing tool, are a kind of scraping walls.
Background technique
In drilling liner cementing and Completion Operations, the hanger position on internal surface of sleeve pipe is unfavorable for hanging there may be mud cake
The seat of device is hung, so usually using wall scraper that internal surface of sleeve pipe scraping is clean before construction, the scraping on common wall scraper at present
Block is fixedly linked with wall scraper ontology, it is easy to card resistance phenomenon occurs during clearing up internal surface of sleeve pipe, once card resistance occurs,
Taking out wall scraper is a fairly time consuming, laborious job again, severely impacts construction speed.
Summary of the invention
The utility model provides a kind of scraping wall, overcomes the defects of the prior art, and can effectively solve
The wall scraper that scraping block is fixedly connected with scraper ontology is easy the problem of card resistance occurs in casing in recycling.
The technical solution of the utility model is realized by following measures: a kind of scraping wall include upper shell,
Lower shell, the lower end of upper shell are fixedly connected with the upper end of lower shell, and the lower end of lower shell is sealed end, and sealed end is convex under being in
It is hemispherical, at least provided with two mounting grooves on the outer wall of upper shell, the middle inside of each mounting groove is both provided with one
With the hydraulic through-hole being connected to inside upper shell, the central axis upright of hydraulic through-hole is in the central axis of upper shell, in each liquid
It is both provided with a corresponding hydraulic plate in pressure through-hole, a disc is both provided in each mounting groove, disc is in recessed
Channel-shaped and its concave part is outwardly, is provided with scraping block corresponding with disc concave part in disc, is provided on disc and liquid
The corresponding installation through-hole of lead to the hole site is pressed, the first screw is provided in installation through-hole, the diameter of installation through-hole is greater than the first spiral shell
One end of the diameter of oncomelania bar portion, the first screw is fixedly connected with scraping block, and the other end and hydraulic plate of the first screw are fixed to be connected
Connect, at least provided with a spring between backing plate and hydraulic plate, one end of spring is fixedly connected with backing plate, the other end of spring with
Hydraulic plate is fixedly connected, the first shear pin for avoiding scraping block from surprisingly stretching out at least provided with two between scraping block and disc
Nail, is at least respectively arranged with a deep gouge above and below the first screw on the scraping block of two sides, each deep gouge is interior at least provided with one
A second screw, the second screw successively include ailhead, polished rod portion, threaded shank from outside to inside, and the polished rod portion of the second screw, which passes through, scrapes
It cuts the deep gouge on block and disc is fixed in mounting groove by threaded shank, the ailhead of the second screw and the end face at deep gouge sinking end
Between be provided with spacing, ball seat sliding sleeve is provided in lower shell, ball seat sliding sleeve is cylindrical, the outer wall of ball seat sliding sleeve and lower cylinder
At least provided with two the second shear pins between the inner wall of body, on the lower shell barrel below ball seat sliding sleeve at least provided with
One circulation through-hole.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
At least provided with the first sealing ring together, the outer wall of ball seat sliding sleeve and lower company between above-mentioned hydraulic plate and hydraulic through-hole
At least provided with the second sealing ring together between the inner wall of connect cylinder body.
Above-mentioned scraping block is arc plate, and it is recessed to be both provided with a plurality of scraping being obliquely distributed on the outer wall of each scraping block
Slot, deep gouge are also oblique.
It is along the circumferential direction uniformly distributed on the outer wall of above-mentioned upper shell that there are four scraping blocks, or/and, along circle on the outer wall of lower shell
Circumferential direction is uniformly distributed, and there are four recycle through-hole.
Above-mentioned upper shell, lower shell outer wall on be both provided with corrosion-inhibiting coating.
The utility model reasonable and compact in structure is sealed on the ball seat sliding sleeve by the way that stifled ball to be put into the utility model
Stifled to build the pressure, when pressure is more than the limiting range of stress that the first shear pin can bear, the first shear pin is broken automatically, hydraulic plate
It is overhanging to will push scraping block, after extending to internal surface of sleeve pipe outside scraping block, internal surface of sleeve pipe can be cleared up by lifting drilling tool, be cleared up
After continue to build the pressure, until second cuts pin fracture, ball seat sliding sleeve can move downward together with stifled ball, it is final expose follow
Ring through-hole carries out pressure release, and hydraulic plate and scraping block bounce back reset under the action of the spring, and the utility model can not only be in casing
Wall is effectively cleared up, and card resistance is less likely to occur during recycling and taking out, time saving and energy saving.
Detailed description of the invention
Attached drawing 1 is the main view half section schematic of the best embodiment of the utility model.
Attached drawing 2 is structural schematic diagram when stretching out disc in attached drawing 1 outside scraping block.
Attached drawing 3 bounces back to structural schematic diagram when disc for scraping block in attached drawing 1.
Coding in attached drawing is respectively as follows: 1 for upper shell, and 2 be lower shell, and 3 be hydraulic through-hole, and 4 be hydraulic plate, and 5 be disc,
6 be scraping block, and 7 be installation through-hole, and 8 be the first screw, and 9 be spring, and 10 be the first shear pin, and 11 be deep gouge, and 12 be second
Screw, 13 be ball seat sliding sleeve, and 14 be the second shear pin, and 15 be circulation through-hole, and 16 be stifled ball, and 17 be the first sealing ring, and 18 are
Second sealing ring, 19 be scraping groove.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 1 is described, such as: the positional relationship of upper and lower, left and right is the Butut according to Figure of description 1
Direction determines.
The utility model is further described below with reference to examples and drawings:
As shown in attached drawing 1,2,3, which includes upper shell 1, lower shell 2, the lower end of upper shell 1 and lower shell
2 upper end is fixedly connected, and the lower end of lower shell 2 is sealed end, and sealed end is convex hemispherical under being in, on the outer wall of upper shell 1
At least provided with two mounting grooves, the middle inside of each mounting groove be both provided with one be connected to inside upper shell 1 it is hydraulic
Through-hole 3, the central axis upright of hydraulic through-hole 3 are both provided with one in each hydraulic through-hole 3 in the central axis of upper shell 1
A corresponding hydraulic plate 4, a disc 5 is both provided in each mounting groove, and disc 5 is in groove-like and its concave part court
Outside, it is provided with scraping block 6 corresponding with 5 concave part of disc in disc 5, is provided on disc 5 and hydraulic 3 position phase of through-hole
Corresponding installation through-hole 7, the first screw 8 is provided in installation through-hole 7, and the diameter of installation through-hole 7 is greater than 8 threaded shank of the first screw
Diameter, one end of the first screw 8 is fixedly connected with scraping block 6, and the other end of the first screw 8 is fixedly connected with hydraulic plate 4, pad
At least provided with a spring 9 between plate and hydraulic plate 4, one end of spring 9 is fixedly connected with backing plate, the other end of spring 9 with
Hydraulic plate 4 is fixedly connected, the first shearing for avoiding scraping block 6 from surprisingly stretching out at least provided with two between scraping block 6 and disc 5
Pin 10, is at least respectively arranged with a deep gouge 11 on the scraping block 6 of about 8 two sides of the first screw, in each deep gouge 11 extremely
It is provided with second screw 12 less, the second screw 12 successively includes ailhead, polished rod portion, threaded shank, the second screw from outside to inside
12 polished rod portion passes through the deep gouge 11 on scraping block 6 and disc 5 is fixed in mounting groove by threaded shank, the second screw 12
It is provided with spacing between the end face at 11 sinking end of ailhead and deep gouge, ball seat sliding sleeve 13, ball seat sliding sleeve 13 are provided in lower shell 2
It is cylindrical, at least provided with two the second shear pins 14 between the outer wall of ball seat sliding sleeve 13 and the inner wall of lower shell 2, in ball
At least provided with a circulation through-hole 15 on 2 barrel of lower shell of 13 lower section of seat sliding sleeve.
When in use, the upper shell of the utility model 1 is fixedly attached to the end of drilling tool and be lowered into well, then will
Stifled ball 16 is put into drilling tool, after stifled ball 16 is fallen on ball seat sliding sleeve 13, is started to carry out the operation that builds the pressure, is made the utility model
Interior pressure gradually rises, when the pressure acted in hydraulic plate 4 is more than the limiting range of stress that the first shear pin 10 can bear
When, the fracture of the first shear pin 10, under the effect of the pressure, hydraulic plate 4 can be displaced outwardly along hydraulic through-hole 3, and at this time first
Screw 8 will push scraping block 6 and stretch out out of disc 5, until scraping block 6 is withstood on the inner wall of casing, the nail of the second screw 12
The distance between the end face at head and 11 sinking end of deep gouge is exactly the overhanging limit of scraping block 6, and spring 9 can be by gradually in the process
Compression, then by way of lifting drilling tool, utilizes the frictional resistance between scraping block 6 and internal surface of sleeve pipe, so that it may in casing
Mud cake on wall is effectively cleared up, and the sealed end of lower shell 2 is designed as hemispherical, can be reduced in decentralization process in this way
Frictional resistance continues the operation that builds the pressure after cleaning, until the pressure at ball seat sliding sleeve 13 is more than the second shear pin
14 limiting ranges of stress that can bear, after the fracture of the second shear pin 14, ball seat sliding sleeve 13 can be fallen to together with stifled ball 16
At the sealed end of lower shell 2, expose circulation through-hole 15, the inner space of upper shell 1 and lower shell 2 passes through circulation through-hole 15 at this time
It is connected to space in well, so that the internal pressure of the utility model gradually decreases, in the process, scraping block 6 and hydraulic plate 4 exist
It is slowly resetted under the action of 9 elastic force of spring, is returned to scraping block 6 gradually in disc 5, pass through the side for above mentioning drilling tool again in this way
Formula, it will be able to easily the utility model be taken out, greatly reduce card resistance probability when taking-up.
Above-mentioned scraping wall can be made further optimization and/or improvements according to actual needs:
As shown in attached drawing 1,2,3, at least provided with the first sealing ring 17 together, ball seat between hydraulic plate 4 and hydraulic through-hole 3
At least provided with the second sealing ring 18 together between the outer wall of sliding sleeve 13 and the inner wall of lower connector drum.This reality can be improved in this way
With novel leakproofness, it is ensured that the utility model builds the pressure the going on smoothly of operation.
As shown in attached drawing 1,2,3, scraping block 6 is arc plate, is both provided on the outer wall of each scraping block 6 a plurality of inclined
The scraping groove 19 of shape distribution, deep gouge 11 are also oblique.Scraper plate is designed as arc plate, in this way can preferably with sleeve
Inner wall fitting can be removed more efficiently clean in this way along with scraping groove 19 and deep gouge 11 skewed on scraping block 6
Mud cake on internal surface of sleeve pipe improves the cleaning efficiency of the utility model.
As shown in attached drawing 1,2,3, along the circumferential direction uniformly distributed on the outer wall of upper shell 1 there are four scraping blocks 6, or/and, lower cylinder
It is along the circumferential direction uniformly distributed on the outer wall of body 2 that there are four recycle through-hole 15.Four scraping blocks 6 are arranged in the utility model, therefore increase
Cleaning area of the scraping block 6 to internal surface of sleeve pipe, improves cleaning efficiency；Be arranged four circulation through-holes 15 then improve it is practical
Novel pressure release rate shortens the retraction resetting time of scraping block 6, improves the recovery efficiency of the utility model.
According to actual needs, corrosion-inhibiting coating is both provided on the outer wall of upper shell 1, lower shell 2.It is right to slow down well oil dirt
The erosion rate of the utility model, extends service life.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (8)
1. a kind of scraping wall, it is characterised in that including upper shell, lower shell, the lower end of upper shell and the upper end of lower shell are solid
Fixed connection, the lower end of lower shell are sealed end, and sealed end is convex hemispherical under being in, at least provided with two on the outer wall of upper shell
A mounting groove, the middle inside of each mounting groove are both provided with the hydraulic through-hole being connected to upper shell inside, hydraulic through-hole
Central axis upright in the central axis of upper shell, be both provided in each hydraulic through-hole one it is corresponding hydraulic
Plate, is both provided with a disc in each mounting groove, disc in groove-like and its concave part outwardly, be provided with and pad in disc
The corresponding scraping block of disk concave part, is provided with installation through-hole corresponding with hydraulic lead to the hole site on disc, in installation through-hole
It is provided with the first screw, the diameter of installation through-hole is greater than the diameter of the first screw threaded shank, one end of the first screw and scraping block
It being fixedly connected, the other end of the first screw is fixedly connected with hydraulic plate, at least provided with a spring between backing plate and hydraulic plate,
One end of spring is fixedly connected with backing plate, and the other end of spring is fixedly connected with hydraulic plate, is at least set between scraping block and disc
It sets there are two the first shear pin for avoiding scraping block from surprisingly stretching out, at least distinguishes on the scraping block of two sides above and below the first screw
Be provided with a deep gouge, at least provided with second screw in each deep gouge, the second screw successively include from outside to inside ailhead,
Polished rod portion, threaded shank, the polished rod portion of the second screw pass through the deep gouge on scraping block and disc are fixed on installation by threaded shank
In slot, it is provided with spacing between the ailhead of the second screw and the end face at deep gouge sinking end, ball seat sliding sleeve is provided in lower shell,
Ball seat sliding sleeve is cylindrical, at least provided with two the second shear pins between the outer wall of ball seat sliding sleeve and the inner wall of lower shell,
At least provided with a circulation through-hole on lower shell barrel below ball seat sliding sleeve.
2. scraping wall according to claim 1, it is characterised in that between hydraulic plate and hydraulic through-hole at least provided with
First sealing ring together, at least provided with the second sealing ring together between the outer wall of ball seat sliding sleeve and the inner wall of lower connector drum.
3. scraping wall according to claim 1 or 2, it is characterised in that scraping block is arc plate, each scraping block
The a plurality of scraping groove being obliquely distributed is both provided on outer wall, deep gouge is also oblique.
4. scraping wall according to claim 1 or 2, it is characterised in that along the circumferential direction uniformly distributed on the outer wall of upper shell
There are four scraping blocks, or/and, it is along the circumferential direction uniformly distributed on the outer wall of lower shell that there are four recycle through-hole.
5. scraping wall according to claim 3, it is characterised in that be along the circumferential direction evenly equipped on the outer wall of upper shell
Four scraping blocks, or/and, it is along the circumferential direction uniformly distributed on the outer wall of lower shell that there are four recycle through-hole.
6. scraping wall according to claim 3, it is characterised in that upper shell, lower shell outer wall on be both provided with it is anti-
Rotten coating.
7. scraping wall according to claim 4, it is characterised in that upper shell, lower shell outer wall on be both provided with it is anti-
Rotten coating.
8. scraping wall described according to claim 1 or 2 or 5, it is characterised in that upper shell, lower shell outer wall on all set
It is equipped with corrosion-inhibiting coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820713049.5U CN208380553U (en) | 2018-05-14 | 2018-05-14 | Scraping wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820713049.5U CN208380553U (en) | 2018-05-14 | 2018-05-14 | Scraping wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208380553U true CN208380553U (en) | 2019-01-15 |
Family
ID=64970620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820713049.5U Active CN208380553U (en) | 2018-05-14 | 2018-05-14 | Scraping wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208380553U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533218A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Scraping wall |
| CN110671078A (en) * | 2019-11-15 | 2020-01-10 | 西南石油大学 | Hydraulic vibration casing pipe scraper |
| CN114508975A (en) * | 2022-02-15 | 2022-05-17 | 南京理工大学 | Fuse rigid safety inertial motion mechanism capable of reducing friction influence of shearing section |
-
2018
- 2018-05-14 CN CN201820713049.5U patent/CN208380553U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533218A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Scraping wall |
| CN110671078A (en) * | 2019-11-15 | 2020-01-10 | 西南石油大学 | Hydraulic vibration casing pipe scraper |
| CN114508975A (en) * | 2022-02-15 | 2022-05-17 | 南京理工大学 | Fuse rigid safety inertial motion mechanism capable of reducing friction influence of shearing section |
| CN114508975B (en) * | 2022-02-15 | 2023-10-13 | 南京理工大学 | Fuse rigid safety inertial motion mechanism for reducing friction influence of shearing section |
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