CN207499844U - With brill pipeline scraper - Google Patents
With brill pipeline scraper Download PDFInfo
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- CN207499844U CN207499844U CN201721619787.5U CN201721619787U CN207499844U CN 207499844 U CN207499844 U CN 207499844U CN 201721619787 U CN201721619787 U CN 201721619787U CN 207499844 U CN207499844 U CN 207499844U
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Abstract
The utility model provides one kind with pipeline scraper is bored, including top connection, central tube, crossover sub and the lower contact being sequentially connected, wherein：Described its circumferencial direction of central tube upper edge is equipped at intervals with multiple pipe cleaning items, ball seat is connected in the crossover sub, in the state of having set ball sealer on the ball seat, each pipe cleaning item can extend radially out under the action of the fluid pressure being passed through in the central tube from the central tube.The utility model with bore pipeline scraper, can effectively solve in drilling process with bore pipe cleaning the technical issues of, drilling time and drilling cost is greatly saved.
Description
Technical field
It is multi-functional with brill pipeline scraper the utility model is related to drilling engineering technical field more particularly to one kind.
Background technology
In drilling process, with being continuously increased for well depth, oil field is in order to save completion cost or for other synthesis sides
The considerations of face, generally carries out well cementing operation using drilling liner cementing technology.The characteristics of drilling liner cementing is exactly by extension hanger skill
Art is by tail tube hanging on upper layer techniques internal surface of sleeve pipe.
It realizes effective progress of drilling liner cementing operation, extension is effectively sat conducive to extension hanger, it must be in upper layer techniques casing
The cleaning operation of inner wall is carried out on inner wall, that is, scrapes wall operation.In order to realize the effective progress for scraping wall operation, conventional technology
It is after drilling well, tripping in drifting drill assembly carries out drifting, and after drifting operation, then tripping in wall scraper carries out technology
Casing scrapes wall operation.
Conventional technical means ensure that casing scrapes effective progress of wall to a certain extent, but with drilling technology not
Disconnected development, deep-well, ultradeep well have become the emphasis direction of drilling well development, when carrying out scraping wall operation in deep-well, ultradeep well, due to
Routine, which scrapes wall operation, must carry out trip-out operation and replace drill assembly to carry out, and process is complicated and the period is long, and cost is higher,
It is dispirited with international oil price, in order to reduce cost and improve drilling efficiency, how to realize that scraping wall with brill has become
One of the technical issues of deep-well, ultradeep well urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide one kind with pipeline scraper is bored, and can effectively solve in drilling process with brill pipe cleaning
Drilling time and drilling cost is greatly saved in technical problem.
Following technical proposal can be used to realize in the above-mentioned purpose of the utility model：
The utility model provide it is a kind of with boring pipeline scraper, including be sequentially connected top connection, central tube, crossover sub
And lower contact, wherein：Described its circumferencial direction of central tube upper edge is equipped at intervals with multiple pipe cleaning items, is connected in the crossover sub
Ball seat, in the state of having set ball sealer on the ball seat, each pipe cleaning item is in the liquid pressure being passed through in the central tube
It can be extended radially out under the action of power from the central tube.
In the embodiment of the utility model, outer sliding sleeve and lower outer sliding sleeve are arranged on the central tube；On described
It is connected between the upper end of outer sliding sleeve and the top connection by upper shear pin, the lower end of the upper outer sliding sleeve is scraped with the multiple
Pipe item abuts against；The upper end of the lower outer sliding sleeve is abutted against with the multiple pipe cleaning item, the lower end of the lower outer sliding sleeve with it is described
It is connected between crossover sub by down cut pin.
In the embodiment of the utility model, fixing sleeve is gone back on the central tube equipped with upper fixing sleeve and lower fixing sleeve；
Fixed set is located in the upper outer sliding sleeve and is slidingly sealed setting with the upper outer sliding sleeve, the upper outer sliding sleeve with it is described
Hydraulic cavities are formed between upper fixing sleeve；The lower fixing sleeve is located in the lower outer sliding sleeve and is slided with the lower outer sliding sleeve
Sealed set is formed with lower hydraulic pressure chamber between the lower outer sliding sleeve and the lower fixing sleeve；The central tube be equipped with it is described
The upper liquid flow hole that upper hydraulic cavities are connected and the lower liquid flow hole being connected with the lower hydraulic pressure chamber.
In the embodiment of the utility model, shear pin, the down cut pin are cut on described state
Under, the upper outer sliding sleeve is moved up and is limited to the top connection, and the lower outer sliding sleeve is moved down and limited to the crossover sub, institute
It states multiple pipe cleaning items to extend radially out from the central tube, the upper end of each pipe cleaning item is resisted against fixed set, respectively
The lower end of the pipe cleaning item is resisted against the lower fixing sleeve.
In the embodiment of the utility model, the upper end of each pipe cleaning item is respectively equipped with to offset with the upper outer sliding sleeve
The first step portion and second step portion connect；The lower end of each pipe cleaning article is respectively equipped with abutted against with the lower outer sliding sleeve
Three stage portions and the 4th stage portion.
In the embodiment of the utility model, set on the outer wall of the central tube there are two the first arc-shaped step portion and two
A second arc-shaped step portion, the outer diameter in the first arc-shaped step portion are more than the outer diameter in the second arc-shaped step portion；Described
The first step portion of multiple pipe cleaning items is abutted against by the upper outer sliding sleeve, and the third stage portion of the multiple pipe cleaning item is described
In a state that lower outer sliding sleeve abuts against, the outer diameter in two the first arc-shaped step portions respectively with the first step portion, described
The outer diameter of third stage portion is identical, the outer diameter in two the second arc-shaped step portions respectively with the second step portion, institute
The outer diameter for stating the 4th stage portion is identical.
In the embodiment of the utility model, described its circumferencial direction of central tube upper edge is equipped at intervals with multiple storage tanks,
The pipe cleaning item is mounted in the storage tank, and the pipe cleaning item has pipe cleaning ontology and multiple elastic components, the multiple bullet
Property part be folded between the storage tank and the pipe cleaning ontology, it is convex that the outer wall of the pipe cleaning ontology is equipped with multiple pipes cleaning
Rib.
In the embodiment of the utility model, lower outer barrel, institute are connected between the crossover sub and the lower contact
It states and ball seat basket is connected in lower contact, the ball seat basket is equipped with multiple through-holes.
In the embodiment of the utility model, the top connection is equipped with upper recirculation hole, and the crossover sub is equipped with
Lower recirculation hole is formed with flowing lumen, the upper flowing lumen and the upper circulation between the upper outer sliding sleeve and the top connection
Hole is connected, and lower flowing lumen is formed between the lower outer sliding sleeve and the crossover sub, and the lower flowing lumen flows down with described
Through-hole is connected.
In the embodiment of the utility model, the pipe cleaning item is three, and three pipe cleaning items are along the central tube
Circumferencial direction set at equal intervals.
The utility model with bore pipeline scraper the characteristics of and advantage be：It should rise and be drilled into after drilling well with pipeline scraper is bored
It can be achieved directly to scrape wall operation in upper layer techniques casing, be also applied for pulling out of hole to scraping in the protective casing of upper strata after drifting
Wall operation is also applied for boring after ash is filled in and scrapes wall operation, therefore, should greatly reduce routine with brill pipeline scraper and scrape wall operation
In scrape activity duration of wall, improving drilling efficiency, having saved drilling cost due to replacing drill assembly, be follow-up tail pipe
Well cementing operation is smoothed out offer technical support.The utility model can greatly reduce due to pipe cleaning operation in new packer liner-hanger well cementation
The round trip carried out can greatly save in deep-well, ultradeep well and be drilled well cost, meanwhile, the utility model has knot
The features such as structure design safety is reliable, scene is easily operated.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the utility model with the half-section diagram for boring pipeline scraper.
Fig. 2 is the A-A of Fig. 1 to sectional view.
Fig. 3 is the main view sectional view of the pipe cleaning ontology of the utility model.
Fig. 4 is the vertical view of the pipe cleaning ontology of the utility model.
Fig. 5 is the half sectional view of the central tube of the utility model.
Fig. 6 is the B-B direction sectional view of Fig. 1.
Fig. 7 is that the pipe cleaning item with brill pipeline scraper of the utility model extends radially out the half-sectional signal of state from central tube
Figure.
Fig. 8 is the half-sectional signal that state at ball seat basket is fallen to the ball seat and ball sealer that bore pipeline scraper of the utility model
Figure.
Fig. 9 is the C-C of Fig. 7 to sectional view.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
As shown in Figure 1, the utility model provide it is a kind of with boring pipeline scraper, including be sequentially connected top connection 1, center
Pipe 2, crossover sub 3 and lower contact 4, wherein：Its circumferencial direction of 2 upper edge of central tube is equipped at intervals with multiple pipe cleaning items 5, described
Ball seat 31 is connected in crossover sub 3, in the state of having set ball sealer 32 on the ball seat 31, each pipe cleaning item 5 exists
It can be extended radially out under the action of the fluid pressure being passed through in the central tube 2 from the central tube 2.
Specifically, the upper end of top connection 1 is equipped with standard drill collar female thread 11, can be connected with drill collar pin thread；Under lower contact 4
End is equipped with standard drill collar pin thread 41, can be connected with drill collar female thread.The utility model with bore pipeline scraper, when in use, thereon
End connects top drill collar or drilling rod by top connection 1, and lower end connects lower part drill collar or drilling rod by lower contact 4.
The upper end of central tube 2 is connected with the lower thread of top connection 1, is realized by O-ring seal 12 therebetween quiet close
Envelope；The lower end of central tube 2 is connected with the threaded upper ends of crossover sub 3, realizes static seal by O-ring seal 33 therebetween；
In the present embodiment, the lower thread of crossover sub 3 is connected with lower outer barrel 6, and the lower end of lower outer barrel 6 is connected with 4 screw thread of lower contact,
Static seal, the lower end of lower outer barrel 6 and lower contact are realized by O-ring seal 61 between the upper end of the lower outer barrel 6 and crossover sub 3
Static seal is realized by O-ring seal 62 between 4.
Pipe cleaning item 5 is used to implement scrapes wall operation to protective casing inner wall, and multiple pipe cleaning items 5 of the utility model are along center
The circumferencial direction of pipe 2 is arranged at intervals, and the quantity of pipe cleaning item 5 can be two, three or four etc., not be limited herein；In this reality
It applies in example, the quantity of pipe cleaning item 5 is three, and three pipe cleaning items 5 are set at equal intervals along the circumferencial direction of central tube 2, using three
Pipe cleaning item 5 while can not only ensureing abundant pipe cleaning, and can guarantee the intensity of central tube 2.
In the present embodiment, its circumferencial direction of 2 upper edge of central tube is equipped at intervals with multiple storage tanks 21, and pipe cleaning item 5 is mounted on
In storage tank 21, which has pipe cleaning ontology 51 and multiple elastic components 52, and multiple elastic components 52 are folded in storage tank 21
Between pipe cleaning ontology 51, the outer wall of the pipe cleaning ontology 51 is equipped with multiple pipe cleaning fins 511.
Specifically, please refer to shown in Fig. 3 and Fig. 4, pipe cleaning ontology 51 is substantially in strip structure, with central tube
The inside 512 that 2 21 bottom wall of storage tank is in contact is planar structure, and the inside 512 of pipe cleaning ontology 51 is designed as planar junction
Structure be in order to 21 bottom wall of storage tank of central tube 2 coordinate, while be also in a limited space it is interior ensure tooling strength need
It will.
The middle part outer wall of the pipe cleaning ontology 51 is equipped with multiple pipe cleaning fins 511, and in the present embodiment, those pipes cleaning are convex
Rib 511 is formed as helical structure, helicla flute 517 is formed between adjacent pipe cleaning fin 511 two-by-two, using the helical structure
Multiple pipe cleaning fins 511 carry out pipe cleaning operation, not only can guarantee being smoothed out for pipe cleaning, also can guarantee in operation process middle sleeve
The effective flowing of the drilling fluid of contact portion between inner wall and helical structure, while ensure that helical structure and internal surface of sleeve pipe
Contact condition non-face contact for point contact.
Further, first step portion 513 and second step are respectively equipped in the upper end of the pipe cleaning ontology 51 of pipe cleaning item 5
Portion 514, the lower end of the pipe cleaning article ontology 51 are respectively equipped with 515 and the 4th stage portion 516 of third stage portion, wherein, first step
Portion 513 and third stage portion 515 are located at the top and bottom of multiple pipe cleaning fins 511 respectively, and second step portion 514 is located at first
The upper end of stage portion 513, the 4th stage portion 516 are located at the lower end of third stage portion 515.
Further, in order to coordinate the first step portion 513 of above-mentioned pipe cleaning item 5, second step portion 514, third step
The structure of 515 and the 4th stage portion 516 of portion, in the present embodiment, as shown in figure 5, being set on the outer wall of central tube 2, there are two the
One arc-shaped step portion 22 and two the second arc-shaped step portions 23, the outer diameter in the first arc-shaped step portion 22 are more than the second arc-shaped step
The outer diameter in portion 23.Please refer to shown in Fig. 2, it is respectively contained in central tube 2 in corresponding storage tank 21 in each pipe cleaning item 5
Under state, the outer diameter in two the first arc-shaped step portions 22 respectively with first step portion 513, the outer diameter of third stage portion 515
It is identical, the outer diameter in two the second arc-shaped step portions 23 respectively with second step portion 514, the outer diameter phase of the 4th stage portion 516
Together.
The axial direction of inside 512 along the central tube 2 of the pipe cleaning item 5 is equipped at intervals with multiple mounting holes 518, each mounting hole
For disposing elastic component 52 in 518, in the present embodiment, which is compressed spring, and there are three each 5 tools of pipe cleaning item
Elastic component 52, certainly, in other embodiments, the quantity of elastic component 52 can also select to set according to actual needs, herein not
It is limited.Further, as shown in Figures 2 and 3, it is additionally provided with to accommodate elastic component 52 in each storage tank 21 of central tube 2
Counter sink 211, and be additionally provided in each mounting hole 518 of pipe cleaning ontology 51 groove 5181 for accommodating elastic component 52.
In the embodiment of the utility model, outer sliding sleeve 24 and lower outer sliding sleeve 25 are arranged on the central tube 2；On this
It is connected between the upper end of outer sliding sleeve 24 and top connection 1 by upper shear pin 241, the lower end of outer sliding sleeve 24 and multiple pipes cleaning on this
Item 5 abuts against；The upper end of the lower outer sliding sleeve 25 is abutted against with multiple pipe cleaning items 5, lower end and the crossover sub 3 of the lower outer sliding sleeve 25
Between by down cut pin 251 be connected.
Specifically, in the present embodiment, outer sliding sleeve 24 is set in substantially in cylinder barrel shaped on central tube 2 on this, on this
The upper end of outer sliding sleeve 24 is inserted between top connection 1 and central tube 2, and is connected under top connection 1 by upper shear pin 241
End；Lower end of outer sliding sleeve 24 is set on the outside of the upper ends of multiple pipe cleaning items 5 and against the first step portion of multiple pipe cleaning items 5 on this
513.The lower outer sliding sleeve 25 substantially in cylinder barrel shaped, is set on central tube 2, and central tube is inserted into the lower end of the lower outer sliding sleeve 25
Between 2 and crossover sub 3, and it is connected to by down cut pin 251 upper end of crossover sub 3；The upper end of the lower outer sliding sleeve 25
It is set in the lower end outside of multiple pipe cleaning items 5 and against the third stage portion 515 of multiple pipe cleaning items 5.Therefore, multiple pipe cleaning items 5
It is radially limited under the action of upper outer sliding sleeve 24 and lower outer sliding sleeve 25 in multiple storage tanks 21 in central tube 2.
Further, fixing sleeve is gone back on central tube 2 equipped with upper fixing sleeve 26 and lower fixing sleeve 27；Fixing sleeve 26 is located on this
Setting is slidingly sealed in upper outer sliding sleeve 24 and with upper outer sliding sleeve 24, upper liquid is formed between outer sliding sleeve 24 and upper fixing sleeve 26 on this
Press chamber 242；The lower fixing sleeve 27 is located in lower outer sliding sleeve 25 and is slidingly sealed setting with lower outer sliding sleeve 25, the lower outer sliding sleeve 25 and
Lower hydraulic pressure chamber 252 is formed between lower fixing sleeve 27；The central tube 2 is equipped with the upper liquid flow hole being connected with upper hydraulic cavities 242
28 and the lower liquid flow hole 29 that is connected with lower hydraulic pressure chamber 252.
Specifically, upper fixing sleeve 26 is set on central tube 2 and substantially in cylinder barrel shaped in upper outer sliding sleeve 24,
And the upper and lower ends of upper fixing sleeve 26 are fixed on center by upper stationary half 261, lower stationary half 262 by axial limiting respectively
Pipe 2, on this between fixing sleeve 26 and central tube 2 be equipped with multiple O-ring seals 263 formed static seal, and on this fixing sleeve 26 with
Multiple O-ring seals 264 also are provided between upper outer sliding sleeve 24, on this outer sliding sleeve 24 can along central tube 2 axial seal slidably
The outside of fixing sleeve 26 is set in, dynamic sealing is formed between fixing sleeve 26 and upper outer sliding sleeve 24 on this；The lower fixing sleeve 27 is big
Body is in cylinder barrel shaped, is set on central tube 2 and in lower outer sliding sleeve 25, and the upper and lower ends of lower fixing sleeve 27 are led to respectively
Cross stationary half 271, lower stationary half 272 is fixed on central tube 2 by axial limiting, the lower fixing sleeve 27 and central tube 2 it
Between be equipped with multiple O-ring seals 273 and form static seal, and also be provided between the lower fixing sleeve 27 and lower outer sliding sleeve 25 multiple O-shaped
Sealing ring 274, the lower outer sliding sleeve 25 can slidably be set in the outside of lower fixing sleeve 27 along the axial seal of central tube 2, under this
Dynamic sealing is formed between fixing sleeve 27 and lower outer sliding sleeve 25.
In the utility model, on this fixing sleeve 26 and lower fixing sleeve 27 respectively with upper outer sliding sleeve 24 and lower outer sliding sleeve 25 it
Between form upper hydraulic cavities 242 and lower hydraulic pressure chamber 252, when each pipe cleaning item 5 under the action of elastic component 52 along the radial direction of central tube 2 to
During outer stretching, the upper surface of each pipe cleaning item 5 will be limited on the inclined-plane of upper fixing sleeve 26, and the lower face of each pipe cleaning item 5 will limit
On the inclined-plane of lower fixing sleeve 27, so as to form axial limiting, the upper and lower displacement of the pipe cleaning item 5 during pipe cleaning is avoided to move,
And in this case, the second step portion 514 of each pipe cleaning article 5, the 4th stage portion 516 are respectively by upper outer sliding sleeve 24 and lower outer sliding sleeve
25 limitings, radially limit so as to be formed.
When injection drilling fluid in the 28 upward hydraulic cavities 242 of upper liquid flow hole by central tube 2, and by under central tube 2
When liquid flow hole 29 injects drilling fluid into lower hydraulic pressure chamber 252, under the action of the fluid pressure of drilling fluid, upper shear pin 241
It is cut, outer sliding sleeve 24 will be shifted up to the step surface 13 of top connection 1 on this, which can be displaced downwardly to crossover sub 3
Step surface 38, multiple pipe cleaning items 5 can be extended radially out from the storage tank 21 of central tube 2, the upper surface Hui Ding of each pipe cleaning item 5
Fixing sleeve 26 is butted on, and the second step portion 514 of each 5 upper end of pipe cleaning item can be connected to the lower end inside of outer sliding sleeve 24, respectively
The lower face of pipe cleaning item 5 can be resisted against lower fixing sleeve 27, and the 4th stage portion 516 of 5 lower end of each pipe cleaning article can be connected to outside lower
On the inside of the upper end of sliding sleeve 25, in this case, each pipe cleaning item 5 is in the job state for scraping wall.
Ball seat 31 is designed in crossover sub 3, which is located for the sealing of ball sealer 32, ball seat 31 and crossover sub
Axially position is realized by shear pin 37 between 3, is realized and sealed by O-ring seal 34 between ball seat 31 and crossover sub 3.
In the embodiment of the utility model, lower outer barrel 6, the lower contact are connected between crossover sub 3 and lower contact 4
Ball seat basket 42 is connected on 4, which is equipped with multiple through-holes 421.
Specifically, lower outer barrel 6 is together by a threaded connection respectively with crossover sub 3, lower contact 4, and pass through O-shaped sealing
Circle realizes static seal, as shown in fig. 6, the mode being connected through a screw thread between ball seat basket 42 and lower contact 4 is installed together, the ball
Multiple through-holes 421 for circulation of drilling fluid are designed on basket seat 42, in the present embodiment, circle are equipped at the middle part of ball seat basket 42
The through-hole 422 of shape is respectively equipped with two fan-shaped through-holes 423 in the both sides of the circular through-hole 422, certainly, other real
It applies in example, multiple through-holes 421 or other shapes are not limited, herein as long as can guarantee that ball seat 31 is located at cage seat 42
After upper, drilling well liquid energy Efficient Cycle.
In an embodiment of the utility model, which is equipped with upper recirculation hole 14, on the crossover sub 3
Equipped with lower recirculation hole 35, flowing lumen 15 is formed on this between outer sliding sleeve 24 and top connection 1, flowing lumen 15 and upper circulation on this
Hole 14 is connected, and lower flowing lumen 36 is formed between the lower outer sliding sleeve 25 and crossover sub 3, the lower flowing lumen 36 and lower recirculation hole
35 are connected.
Specifically, when upper shear pin 241 and down cut pin 251 quilt under the action of the fluid pressure of drilling fluid respectively
After cutting, upper outer sliding sleeve 24 moves up under the driving of upper hydraulic cavities 242, and lower outer sliding sleeve 25 is in the driving of lower hydraulic pressure chamber 252
Under move down, flowing lumen 15 and lower flowing lumen 36 can be avoided between top connection 1, upper outer sliding sleeve 24, central tube 2 in setting, with
And " dead space " is formed between crossover sub 3, lower outer sliding sleeve 25, central tube 2, outer sliding sleeve 24 and lower outer sliding sleeve 25 is effective in guarantee
Migration.
The utility model in use, rises when drilling or drifting or after boring ash plug operation and is drilled into protective casing
It is interior, when carrying out scraping wall operation to protective casing internal wall hanger seat extension part, ground input ball sealer 32, when ball sealer 32 is located
After on ball seat 31, ground continues to be pumped into drilling fluid, after the fluid pressure of drilling fluid reaches design value, fluid pressure and on
Under the action of hydraulic cavities 242, lower hydraulic pressure chamber 252, upper shear pin 241, down cut pin 251 are first sheared through, upper hydraulic cavities
242nd, lower hydraulic pressure chamber 252 respectively drives outer sliding sleeve 24, lower outer sliding sleeve 25 is slided and limited respectively to top and bottom and connect upper
At the step surface 38 on step surface 13 and crossover sub 3 on first 1, simultaneously as multiple pipe cleaning items 5 lose radial constraint,
The extending radially out to protective casing inner wall along central tube 2 under the action of elastic component 52 of pipe cleaning item 5, it is upper with drill string
Lower activity and rotary operation, realize and scrape wall operation to protective casing inner wall.Meanwhile during scraping wall operation and carrying out, in order to
Ensure the cycle operation of drilling fluid, ground continues the operation that builds the pressure, and after hydraulic coupling reaches certain value, shear pin 37 is cut
Disconnected, ball sealer 32 and ball seat 31 are fallen to together at ball seat basket 42, due to being designed with multiple through-holes 421 at ball seat basket 42, those
Through-hole 421 can realize the Efficient Cycle of drilling fluid, avoid due to during pipe cleaning operation and other underground work, drilling well
Erosion of the liquid to tool, and in a limited space it is interior the pressure drop of tool is reduced to it is minimum.
The utility model with pipeline scraper is bored, pulled out of hole after drilling well to can be achieved in the protective casing of upper strata directly to scrape wall work
Industry is also applied for pulling out of hole in the protective casing of upper strata after drifting and scrapes wall operation, is also applied for after boring ash plug
Wall operation is scraped, therefore, conventional scrape in wall operation since replacement drill assembly carries out scraping wall should be greatly reduced with pipeline scraper is bored
Activity duration, improve drilling efficiency, save drilling cost, for follow-up drilling liner cementing operation be smoothed out technical support is provided.
The utility model can greatly reduce by the round trip that pipe cleaning operation is carried out in new packer liner-hanger well cementation, can greatly save depth
Well cost is drilled in well, ultradeep well, meanwhile, the utility model has the spies such as structure design is safe and reliable, scene is easily operated
Point.
The foregoing is merely several embodiments of the utility model, and those skilled in the art is according to disclosed in application documents
Content can carry out the utility model embodiment spirit and scope of the various changes or modifications without departing from the utility model.
Claims (10)
- It is 1. a kind of with boring pipeline scraper, which is characterized in that including top connection, central tube, crossover sub and the lower contact being sequentially connected, Wherein：Described its circumferencial direction of central tube upper edge is equipped at intervals with multiple pipe cleaning items, ball seat is connected in the crossover sub, in institute It states in the state of having set ball sealer on ball seat, each pipe cleaning item is under the action of the fluid pressure being passed through in the central tube It can be extended radially out from the central tube.
- 2. as described in claim 1 with boring pipeline scraper, which is characterized in that be arranged with outer sliding sleeve and lower outer on the central tube Sliding sleeve；It is connected between the upper end of the upper outer sliding sleeve and the top connection by upper shear pin, the lower end of the upper outer sliding sleeve It is abutted against with the multiple pipe cleaning item；The upper end of the lower outer sliding sleeve is abutted against with the multiple pipe cleaning item, the lower outer sliding sleeve Lower end and the crossover sub between be connected by down cut pin.
- 3. as claimed in claim 2 with brill pipeline scraper, which is characterized in that fixing sleeve is gone back on the central tube equipped with upper fixing sleeve With lower fixing sleeve；Fixed set is located in the upper outer sliding sleeve and is slidingly sealed setting with the upper outer sliding sleeve, it is described on Hydraulic cavities are formed between outer sliding sleeve and fixed set；The lower fixing sleeve be located in the lower outer sliding sleeve and with it is described Lower outer sliding sleeve is slidingly sealed setting, and lower hydraulic pressure chamber is formed between the lower outer sliding sleeve and the lower fixing sleeve；The central tube It is equipped with the upper liquid flow hole being connected with the upper hydraulic cavities and the lower liquid flow hole being connected with the lower hydraulic pressure chamber.
- 4. as claimed in claim 3 with brill pipeline scraper, which is characterized in that shear pin, the down cut pin on described In the state of cutting, the upper outer sliding sleeve is moved up and is limited to the top connection, and the lower outer sliding sleeve is moved down and limited to institute Crossover sub is stated, the multiple pipe cleaning item is extended radially out from the central tube, and the upper end of each pipe cleaning item is resisted against institute Fixing sleeve is stated, the lower end of each pipe cleaning item is resisted against the lower fixing sleeve.
- 5. as claimed in claim 3 with bore pipeline scraper, which is characterized in that the upper end of each pipe cleaning item be respectively equipped with it is described The first step portion and second step portion that upper outer sliding sleeve abuts against；The lower end of each pipe cleaning item is respectively equipped with and the lower outer cunning Cover the third stage portion and the 4th stage portion abutted against.
- 6. as claimed in claim 5 with brill pipeline scraper, which is characterized in that the first arc there are two being set on the outer wall of the central tube Shape stage portion and two the second arc-shaped step portions, the outer diameter in the first arc-shaped step portion are more than the second arc-shaped step portion Outer diameter；It is abutted against, and the third of the multiple pipe cleaning item by outer sliding sleeve on described in the first step portion of the multiple pipe cleaning item In a state that stage portion is abutted against by the lower outer sliding sleeve, the outer diameter in two the first arc-shaped step portions is respectively with described first Stage portion, the outer diameter of the third stage portion are identical, and the outer diameter in two the second arc-shaped step portions is respectively with described Two stage portions, the outer diameter of the 4th stage portion are identical.
- 7. as described in claim 1 with brill pipeline scraper, which is characterized in that described its circumferencial direction of central tube upper edge is equipped at intervals with Multiple storage tanks, the pipe cleaning item are mounted in the storage tank, and the pipe cleaning item has pipe cleaning ontology and multiple elastic components, The multiple elastic component is folded between the storage tank and the pipe cleaning ontology, and the outer wall of the pipe cleaning ontology is equipped with more A pipe cleaning fin.
- 8. as described in claim 1 with brill pipeline scraper, which is characterized in that connected between the crossover sub and the lower contact There is lower outer barrel, ball seat basket is connected in the lower contact, the ball seat basket is equipped with multiple through-holes.
- 9. as claimed in claim 2 with bore pipeline scraper, which is characterized in that the top connection be equipped with upper recirculation hole, described turn Changing-over head is equipped with lower recirculation hole, and flowing lumen, the upper flowing lumen are formed between the upper outer sliding sleeve and the top connection It is connected with the upper recirculation hole, lower flowing lumen, the lower circulation is formed between the lower outer sliding sleeve and the crossover sub Chamber is connected with the lower recirculation hole.
- 10. as described in claim 1 with brill pipeline scraper, which is characterized in that the pipe cleaning item is three, three pipe cleaning items It is set at equal intervals along the circumferencial direction of the central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619787.5U CN207499844U (en) | 2017-11-28 | 2017-11-28 | With brill pipeline scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619787.5U CN207499844U (en) | 2017-11-28 | 2017-11-28 | With brill pipeline scraper |
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| Publication Number | Publication Date |
|---|---|
| CN207499844U true CN207499844U (en) | 2018-06-15 |
Family
ID=62507413
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721619787.5U Active CN207499844U (en) | 2017-11-28 | 2017-11-28 | With brill pipeline scraper |
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| Country | Link |
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| CN (1) | CN207499844U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838217A (en) * | 2017-11-28 | 2019-06-04 | 中国石油大学(北京) | With brill pipeline scraper |
| CN109915075A (en) * | 2019-04-19 | 2019-06-21 | 新疆华油油气工程有限公司 | The downhole tool of logical function is scraped with milling |
| CN112878962A (en) * | 2021-03-11 | 2021-06-01 | 西南石油大学 | Intelligent wall scraper for casing of ultra-deep well |
-
2017
- 2017-11-28 CN CN201721619787.5U patent/CN207499844U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838217A (en) * | 2017-11-28 | 2019-06-04 | 中国石油大学(北京) | With brill pipeline scraper |
| CN109915075A (en) * | 2019-04-19 | 2019-06-21 | 新疆华油油气工程有限公司 | The downhole tool of logical function is scraped with milling |
| CN109915075B (en) * | 2019-04-19 | 2021-04-13 | 新疆华油油气工程有限公司 | Downhole tool with milling and scraping functions |
| CN112878962A (en) * | 2021-03-11 | 2021-06-01 | 西南石油大学 | Intelligent wall scraper for casing of ultra-deep well |
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