CN104763367B - Drifting and pipe scraping integrated tool - Google Patents
Drifting and pipe scraping integrated tool Download PDFInfo
- Publication number
- CN104763367B CN104763367B CN201510129233.6A CN201510129233A CN104763367B CN 104763367 B CN104763367 B CN 104763367B CN 201510129233 A CN201510129233 A CN 201510129233A CN 104763367 B CN104763367 B CN 104763367B
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- scraping
- knife
- drifting
- main body
- sleeve
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- 238000007790 scraping Methods 0.000 title claims abstract description 151
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 15
- 241000486679 Antitype Species 0.000 claims description 32
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000452 restraining effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 206010016825 Flushing Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
- E21B37/04—Scrapers specially adapted therefor operated by fluid pressure, e.g. free-piston scrapers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Earth Drilling (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides a drifting and pipe scraping integrated tool, which comprises a scraping mechanism and a drifting mechanism which are fixedly connected from top to bottom in sequence, wherein the scraping mechanism comprises a tool rest main body, a tool groove is formed in the outer wall of the tool rest main body, the scraping mechanism further comprises a scraping knife inserted in the tool groove, and a reed used for resetting the scraping knife is arranged in the tool groove; the scraping mechanism further comprises a sleeve capable of restraining the scraping knife, the sleeve is sleeved outside the knife rest main body and can move upwards or downwards until the scraping knife extends out under the elastic action of the reed. The invention can carry out scraping operation while drifting operation, reduce the times of pulling out the pipe column, improve the efficiency of drifting and scraping operation and reduce the abrasion of the pipe column.
Description
Technical field
It is especially a kind of to have the logical of drifting and scraping internal surface of sleeve pipe function concurrently the present invention relates to the downhole tool in field of recovering the oil
Well pipe cleaning integrated tool.
Background technology
Drifting and scraping are the basic working procedures in underground work.Drifting is detection sleeve pipe, oil pipe, drilling rod and other pipes
The conventional meanses of interior latus rectum size, check the biggest size of element that can pass through after its deformation, are that well workover, operation detection are essential
Technique.Scraping internal surface of sleeve pipe, eliminates casing wall cement, hard wax, salt crust and borehole burr, is that workover treatment and normal down-hole are made
One important procedure of industry, for entering under downhole tool and normal work important role.Casing scraper can be used for clearly
Except the cement block, cement sheath, hard wax, various saline crystallizations and deposit, perforation burrs and the sleeve pipe that remain on internal surface of sleeve pipe
The thing such as produced iron oxide after corrosion, so that unblocked underground enters various instruments of going into the well.Especially in the instrument of going into the well and sleeve pipe
When inwall annular space is less, more answer abundant scraping, using scraper carry out pipe cleaning have become it is a kind of together requisite
Operation, its object is to enter the success rate (the setting success rate etc. of such as packer) with operation under raising instrument.
At present, the conventional process sequence in scene is first drifting, and then could down enter scraper carries out scraping, rises repeatedly
Lower tubular column work consuming is time-consuming, and repeatedly playing lower tubular column can also cause tubing string to wear and tear.
The content of the invention
In order to overcome prior art rise repeatedly when carrying out underground work lower tubular column work consuming it is time-consuming and can cause tubing string wear and tear
Problem, the present invention provides a kind of dredging, scraping pipe integrated instrument, can carry out scraping while drifting operation, reduces
Lower tubular column number of times, improves the operating efficiency of drifting scraping, and reduces running string abrasion.
The technical solution adopted for the present invention to solve the technical problems is：A kind of pipe integrated instrument of dredging, scraping, including from
The scraping mechanism being fixedly connected sequentially under above and drifting mechanism, the scraping mechanism includes knife rest main body, outside knife rest main body
Cutter groove is provided with wall, the scraping mechanism also includes the type scraping knife being plugged in the cutter groove, in the cutter groove use is provided with
In the reed for making the type scraping knife reset；The scraping mechanism also includes that the sleeve of the type scraping knife can be constrained, and sleeve is sheathed on
Outside knife rest main body, sleeve can be moved up or down until the type scraping knife stretches out under the elastic force effect of the reed.
The cutter groove includes positive cutter groove and anti-cutter groove, and positive type scraping knife is plugged with the positive cutter groove, sets in the positive cutter groove
The positive reed for making positive type scraping knife reset is equipped with, anti-type scraping knife is plugged with the anti-cutter groove, be provided with the anti-cutter groove
For the anti-reed for making anti-type scraping knife reset, the hand of spiral of anti-type scraping knife is contrary with the hand of spiral of positive type scraping knife.
The positive cutter groove and positive type scraping knife are arranged on the outer wall of knife rest main body in right-handed screw mode, the anti-cutter groove and anti-
Type scraping knife is arranged on the outer wall of knife rest main body in backpitch mode, and positive type scraping knife is arranged on the top of anti-type scraping knife.
Fixed cover is provided between the positive cutter groove and the anti-cutter groove, fixed cover is fixedly installed on the outer of knife rest main body
Wall, less than the internal diameter of sleeve, the upper end of fixed cover abuts with the lower end of positive type scraping knife for the external diameter of fixed cover, the lower end of fixed cover and
The upper end of anti-type scraping knife abuts, and fixed cover includes symmetrically arranged left-half and right half part, vertically, fixed cover
Length is more than positive type scraping knife and the length of anti-type scraping knife.
Knife rest main body is cylindrical shape, and the axis of knife rest main body is vertically arranged, and multiple positive type scraping knifes are along knife rest main body
Circumferential uniform intervals arrangement, multiple anti-type scraping knifes along knife rest main body circumferential uniform intervals arrange.
Connected by connecting tube between the scraping mechanism and the drifting mechanism, the lower end of knife rest main body is interior with sleeve
Wall is tightly connected, and the lower end of sleeve is tightly connected with the outer wall of connecting tube；Knife rest main body be cylindrical shape, the axis of knife rest main body
Vertically arrange, upper end and the lower end of knife rest main body of connecting tube are tightly connected, knife rest main body, between sleeve and connecting tube
Form hydraulic cavities, connecting tube is provided with the inlet opening corresponding with the hydraulic cavities, when by inlet opening into the hydraulic cavities
When suppressing, sleeve can be moved down.
The drifting mechanism includes the drifting joint of tubular, the inner chamber of knife rest main body, the inner chamber of connecting tube and drifting joint
Inner chamber formed up/down perforation well-flushing passage, being provided with drifting joint can insulate the packer assembly of the well-flushing passage.
The packer assembly includes the sliding sleeve being connected with drifting joint sealing, and sets between the inwall of sliding sleeve and drifting joint
There is shear pin, sliding sleeve can moving axially downwards until sliding sleeve departs from drifting joint along drifting joint.
The outer wall of drifting joint is circumferentially arranged at intervals with the fin for drifting.
Also slide outside connecting tube and be arranged with back-up ring, the upper end inwall of back-up ring is fixedly connected with the lower end of sleeve；Sleeve, back-up ring
Annular space is formed with and connecting tube between, in the annular space lock ring is provided with；The side wall of connecting tube is concavely provided with can be with
Lock ring matching connection locking slot, when quill to move down when, back-up ring as quill is to moving down, until lock ring is locked on locking
In groove.
The invention has the beneficial effects as follows, drifting and scraping can be simultaneously carried out, can reduce in operation process
The number of times of lower tubular column, improves the operating efficiency of drifting scraping, and has saved the energy expended in this operation process, meanwhile,
Running string abrasion is reduced, workover treatment efficiency is improve, and reduces tubing string maintenance cost.
Description of the drawings
With reference to the accompanying drawings and examples the present invention will be further described.
Fig. 1 is the pipe integrated instrument reset condition schematic diagram of dredging, scraping of the present invention；
Fig. 2 is the pipe integrated TO view of dredging, scraping of the present invention；
Fig. 3 is the partial enlarged drawing of region A in Fig. 2.
Description of reference numerals：
1. knife rest main body, 2. positive reed, 3. positive type scraping knife, 4. sleeve, 5. fixed cover, 6. trip bolt, 7. anti-reed, 8.
Anti- type scraping knife, 9.O type rubber seal, 10.O type rubber seal, 11. lock rings, 12. back-up rings, 13. connecting tubes, 131. feed liquors
Hole, 132. locking slots, 14. drifting joints, 15.O type rubber seal, 16. sliding sleeves, 17. shear pins, 18. steel balls.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now control illustrates this
Bright specific embodiment.
As shown in Figure 1 to Figure 3, the present invention proposes a kind of pipe integrated instrument of dredging, scraping, including solid successively from top to bottom
The scraping mechanism of fixed connection and drifting mechanism, the scraping mechanism includes knife rest main body 1, is provided with the outer wall of knife rest main body 1
Cutter groove, the scraping mechanism also includes the type scraping knife being plugged in the cutter groove, is provided with the cutter groove for making described scraping
The reed that sharpener resets；The scraping mechanism also includes that the sleeve 4 of the type scraping knife can be constrained, and sleeve 4 is sheathed on knife rest main body 1
Outward, sleeve 4 can be moved up or down until the type scraping knife stretches out under the elastic force effect of the reed.
During running string, drift size gauge tool just plays to the pipe integrated instrument of dredging, scraping of the present invention in the drifting mechanism
Effect, after doctor locations are transferred to, sleeve 4 is moved up or down, and the type scraping knife stretches out, proceed by scraping work
Industry.Therefore, using the pipe integrated instrument of dredging, scraping of the present invention, it is possible to reduce play the number of times of lower tubular column, well workover efficiency is improved, is carried
The exploitation benefit in high oil field.In addition, in use, the present invention can also routinely be used separately as drifting.
In order to reduce the radial direction scraping power produced during the type scraping knife scraping, spiral scraper is set not produce because of in scraping
Rotate and come off, the cutter groove includes positive cutter groove and anti-cutter groove, and positive type scraping knife 3, the positive cutter groove are plugged with the positive cutter groove
The positive reed 2 for making positive type scraping knife 3 reset inside is provided with, anti-type scraping knife 8 is plugged with the anti-cutter groove, in the anti-cutter groove
The anti-reed 7 for making anti-type scraping knife 8 reset is provided with, anti-type scraping knife 8 is outer symmetrical above and below in knife rest main body 1 with positive type scraping knife 3
Arrange, the hand of spiral of anti-type scraping knife 8 is contrary with the hand of spiral of positive type scraping knife 3.In scraping, positive type scraping knife 3 and anti-scraping
Knife 8 will produce contrary radial direction scraping power, so as to cancel out each other.
In embodiment as shown in Figures 1 and 2, the positive cutter groove and positive type scraping knife 3 are arranged in right-handed screw mode
On the outer wall of knife rest main body 1, the anti-cutter groove and anti-type scraping knife 8 are arranged on the outer wall of knife rest main body 1, just in backpitch mode
Type scraping knife 3 is arranged on the top of anti-type scraping knife 8, i.e., described positive cutter groove and positive type scraping knife 3 are outer in bull dextrorotation spiral shell in knife rest main body 1
It is in bull left hand thread shape that line shape, the anti-cutter groove and anti-type scraping knife 8 are outer in knife rest main body 1.
For the ease of the installation of positive type scraping knife 3 and anti-type scraping knife 8, it is provided between the positive cutter groove and the anti-cutter groove
Fixed cover 5, fixed cover 5 is fixedly installed on the outer wall of knife rest main body 1, and the external diameter of fixed cover 5 is less than the internal diameter of sleeve 4, fixed cover 5
Upper end abut with the lower end of positive type scraping knife 3, the lower end of fixed cover 5 abuts with the upper end of anti-type scraping knife 8, and it is right that fixed cover 5 includes
Claim left-half and the right half part for arranging, vertically, the length of fixed cover 5 is more than positive type scraping knife 3 and anti-type scraping knife 8
Length.In use, positive type scraping knife 3 and anti-type scraping knife 8 are respectively arranged in into the described positive cutter groove of knife rest main body 1 and described
In anti-cutter groove, positive reed 2 and anti-reed 7 are respectively charged in the positive cutter groove and the anti-cutter groove after installation, then via
Fixed cover 5 withstands, and afterwards fixed cover 5 is fixed on into knife rest main body 1, as shown in Figures 1 and 2, be able to will be fixed with trip bolt 6
Set 5 is fixed on knife rest main body 1.During scraping, by positive type scraping knife 3, anti-type scraping knife 8, positive reed 2, anti-reed 7, fixed cover 5
Escapement is constituted with trip bolt 6, positive type scraping knife 3 and anti-type scraping knife 8 produce contrary radial direction scraping power can be by fixing
Set 5 is cancelled out each other, and so as to solve the swivel shackle phenomenon produced due to spiral type scraping knife, reaches the purpose for preventing from coming off.
In a specific embodiment, knife rest main body 1 is cylindrical shape, and the axis of knife rest main body 1 vertically sets
Put, multiple positive type scraping knifes 3 are arranged along the circumferential uniform intervals of knife rest main body 1, circumference of multiple anti-type scraping knifes 8 along knife rest main body 1
Uniform intervals are arranged.
As shown in Figures 1 and 2, connected by connecting tube 13 between the scraping mechanism and the drifting mechanism, knife rest master
The lower end of body 1 is connected with the inner wall sealing of sleeve 4, and the lower end of sleeve 4 is tightly connected with the outer wall of connecting tube 13；Knife rest main body
1 is cylindrical shape, and the axis of knife rest main body 1 is vertically arranged, and the upper end of connecting tube 13 connects with the lower end sealing of knife rest main body 1
Connect, hydraulic cavities are formed between knife rest main body 1, sleeve 4 and connecting tube 13, connecting tube 13 is provided with corresponding with the hydraulic cavities
Inlet opening 131, when being suppressed into the hydraulic cavities by inlet opening 131, sleeve 4 can be moved down.
In an optional embodiment, the drifting joint 14 of the drifting mechanism including tubular, knife rest main body 1 it is interior
The inner chamber in chamber, the inner chamber of connecting tube 13 and drifting joint 14 is formed and is provided with the well-flushing passage of up/down perforation, drifting joint 14
The packer assembly of the well-flushing passage can be insulated.
Particularly, the packer assembly includes the sliding sleeve 16 being tightly connected with drifting joint 14, and sliding sleeve 16 and drifting
Shear pin 17 is provided between the inwall of joint 14, sliding sleeve 16 can moving axially downwards until sliding sleeve 16 along drifting joint 14
Depart from drifting joint 14.The fin for drifting is circumferentially arranged at intervals with the outer wall of drifting joint 14.
In addition, outer also slip of connecting tube 13 is arranged with back-up ring 12, the upper end inwall of back-up ring 12 is fixed with the lower end of sleeve 4 and connected
Connect；Annular space is formed between sleeve 4, back-up ring 12 and connecting tube 13, lock ring 11 is provided with the annular space；Connecting tube
13 side wall is concavely provided with the locking slot 13 that can be connected with the matching of lock ring 11, and when sleeve 4 is axially moved down, back-up ring 12 is with sleeve
4 axially move down, until lock ring 11 is locked in locking slot 13.Now stop suppressing, due between lock ring 11 and locking slot 13
Mechanical force, sleeve 4 can be no longer axially up relative to connecting tube 13, and positive type scraping knife 3 and anti-type scraping knife 8 can keep discharging shape
State.Wherein, lock ring 11 is split ring, and the internal diameter of lock ring 11 can become big and diminish.
The using method of the present invention is illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, it is fashionable under the pipe integrated instrument of dredging, scraping of the present invention, the lower end of tubing string is coupled with, lead to
Well joint 14 plays a part of drift size gauge tool during entering under, after transferring to doctor locations, puts into steel ball 18, and steel ball 19 falls and sliding
On set 16, under the sealing function of O-shaped rubber seal 9, O-shaped rubber seal 10 and O-shaped rubber seal 15, knife rest main body
Fluid cylinder is formed between 1 and sleeve 4, its inside is pressurizeed afterwards, after reaching authorized pressure, fluid cylinder promotes sleeve 4 to drive lock
Ring 11 is travel downwardly with back-up ring 12, and after reaching the locked position of connecting tube 13, lock ring 11 locks the locking slot 132 of connecting tube 13,
As shown in Figures 2 and 3.Now sleeve 4 is displaced downwardly to the type scraping knife and discharges completely, and positive type scraping knife 3, anti-type scraping knife 8 are respectively just
Eject in the presence of reed 2, anti-reed 7, form scraping mechanism, start scraping.After completing scraping, continue to increase pressure
Power to shear pin 17 is cut off, and at this moment sliding sleeve 16 falls into the bottom of the instrument of the present invention, and the well-flushing passage is opened, and completes whole
Technological process.
From background technology, drifting and scraping are the basic working procedures in underground work, and lower tubular column not only work consuming is played repeatedly
It is time-consuming, will also result in into the abrasion of well casing post.By the drifting scraping integrated tool and matching operation technique of the present invention, Neng Goushi
An existing tubing string completes drifting, for flow charts such as mud, sleeve pipe scraping, well-flushings, it will reduce workover rig service to oil well cost and
The labour intensity of workman, improves workover treatment efficiency and operation quality, and then ensures production, and the potential value of the present invention is huge,
It is worth extensively application.
Schematically specific embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, the equivalent variations made on the premise of the design without departing from the present invention and principle and modification, all should
Belong to the scope of protection of the invention.And it should be noted that each part of the present invention be not limited in above-mentioned entirety should
With each technical characteristic described in the specification of the present invention can according to actual needs select one individually to adopt or select multinomial
Combine and use, therefore, the present invention naturally covers relevant with this case innovative point other combinations and concrete application.
Claims (7)
1. the pipe integrated instrument of a kind of dredging, scraping, it is characterised in that the pipe integrated instrument of the dredging, scraping include from top to bottom according to
The secondary scraping mechanism being fixedly connected and drifting mechanism, the scraping mechanism includes knife rest main body (1), the outer wall of knife rest main body (1)
On be provided with cutter groove, the scraping mechanism also includes the type scraping knife being plugged in the cutter groove, be provided with the cutter groove for
The reed for making the type scraping knife reset；The scraping mechanism also includes that the sleeve (4) of the type scraping knife, sleeve (4) set can be constrained
Located at knife rest main body (1) outward, sleeve (4) can be moved down until the type scraping knife stretches out under the elastic force effect of the reed；
By connecting tube (13) connection, the lower end of knife rest main body (1) and sleeve between the scraping mechanism and the drifting mechanism
(4) inner wall sealing connects, and the lower end of sleeve (4) is tightly connected with the outer wall of connecting tube (13)；Knife rest main body (1) is cylinder
Shape, the axis of knife rest main body (1) is vertically arranged, and the upper end of connecting tube (13) connects with the lower end sealing of knife rest main body (1)
Connect, hydraulic cavities are formed between knife rest main body (1), sleeve (4) and connecting tube (13), connecting tube (13) is provided with and the hydraulic cavities
Corresponding inlet opening (131), when being suppressed into the hydraulic cavities by inlet opening (131), sleeve (4) can be to moving down
It is dynamic；
Connecting tube (13) is also slided be arranged with back-up ring (12) outward, and the upper end inwall of back-up ring (12) is fixed with the lower end of sleeve (4) and connected
Connect；Annular space is formed between sleeve (4), back-up ring (12) and connecting tube (13), in the annular space lock ring is provided with
(11)；The side wall of connecting tube (13) is concavely provided with the locking slot (132) that can be connected with lock ring (11) matching, when sleeve (4) axial direction
When moving down, back-up ring (12) is axially moved down with sleeve (4), until lock ring (11) is locked in locking slot (132), lock ring (11) is
Split ring, the internal diameter of lock ring (11) can become big and diminish；
The drifting mechanism includes the drifting joint (14) of tubular, and circumferentially interval setting is useful for the outer wall of drifting joint (14)
In the fin of drifting, the fin is arranged along the axis direction of drifting joint (14).
2. the pipe integrated instrument of dredging, scraping according to claim 1, it is characterised in that the cutter groove includes positive cutter groove and anti-
Cutter groove, is plugged with positive type scraping knife (3) in the positive cutter groove, be provided with the positive cutter groove for making what positive type scraping knife (3) resetted
Positive reed (2), is plugged with anti-type scraping knife (8) in the anti-cutter groove, be provided with the anti-cutter groove for making anti-type scraping knife (8) multiple
The anti-reed (7) of position, the hand of spiral of anti-type scraping knife (8) is contrary with the hand of spiral of positive type scraping knife (3).
3. the pipe integrated instrument of dredging, scraping according to claim 2, it is characterised in that the positive cutter groove and positive type scraping knife
(3) it is arranged on the outer wall of knife rest main body (1) in right-handed screw mode, the anti-cutter groove and anti-type scraping knife (8) are in backpitch mode
It is arranged on the outer wall of knife rest main body (1), positive type scraping knife (3) is arranged on the top of anti-type scraping knife (8).
4. the pipe integrated instrument of dredging, scraping according to claim 3, it is characterised in that the positive cutter groove and the anti-cutter groove
Between be provided with fixed cover (5), fixed cover (5) is fixedly installed on the outer wall of knife rest main body (1), and the external diameter of fixed cover (5) is less than
The internal diameter of sleeve (4), the upper end of fixed cover (5) abuts with the lower end of positive type scraping knife (3), lower end and the anti-scraping of fixed cover (5)
The upper end of knife (8) abuts, and fixed cover (5) is including symmetrically arranged left-half and right half part, vertically, fixed cover
(5) length is more than positive type scraping knife (3) and the length of anti-type scraping knife (8).
5. the pipe integrated instrument of dredging, scraping according to claim 2, it is characterised in that knife rest main body (1) is cylindrical shape, knife
The axis of frame body (1) is vertically arranged, and multiple positive type scraping knifes (3) are arranged along the circumferential uniform intervals of knife rest main body (1),
Multiple anti-type scraping knifes (8) are arranged along the circumferential uniform intervals of knife rest main body (1).
6. the pipe integrated instrument of dredging, scraping according to claim 1, it is characterised in that the inner chamber of knife rest main body (1), connection
The inner chamber of pipe (13) and the inner chamber of drifting joint (14) form the well-flushing passage of up/down perforation, and in drifting joint (14) energy is provided with
Insulate the packer assembly of the well-flushing passage.
7. the pipe integrated instrument of dredging, scraping according to claim 6, it is characterised in that the packer assembly includes and drifting
The sliding sleeve (16) that joint (14) is tightly connected, and it is provided with shear pin between the inwall of sliding sleeve (16) and drifting joint (14)
(17), sliding sleeve (16) can moving axially downwards until sliding sleeve (16) departs from drifting joint (14) along drifting joint (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129233.6A CN104763367B (en) | 2015-03-24 | 2015-03-24 | Drifting and pipe scraping integrated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129233.6A CN104763367B (en) | 2015-03-24 | 2015-03-24 | Drifting and pipe scraping integrated tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763367A CN104763367A (en) | 2015-07-08 |
| CN104763367B true CN104763367B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510129233.6A Active CN104763367B (en) | 2015-03-24 | 2015-03-24 | Drifting and pipe scraping integrated tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763367B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761562B (en) * | 2016-12-27 | 2019-01-18 | 中国石油天然气股份有限公司 | Drifting scraping tool |
| CN108643863B (en) * | 2018-07-17 | 2020-11-17 | 嘉兴市国龙石油化工股份有限公司 | Sucker rod self-adaptation formula pit shaft paraffin removal device |
| CN111456683A (en) * | 2019-01-18 | 2020-07-28 | 中国石油天然气股份有限公司 | Wall scraper |
| CN112096339B (en) * | 2019-06-18 | 2022-02-18 | 中国石油化工股份有限公司 | Automatic packing device for casing |
| CN110410039B (en) * | 2019-09-09 | 2021-06-08 | 中国石油大学(华东) | Casing scraper for oil field |
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| GB9204068D0 (en) * | 1992-02-26 | 1992-04-08 | Peco Machine Shop & Inspection | Broaching tool for tubing |
| CN202832394U (en) * | 2012-08-08 | 2013-03-27 | 宝鸡瑞通石油机械有限公司 | Novel hydraulic scraper for all-in-one operation |
| CN202832393U (en) * | 2012-10-29 | 2013-03-27 | 中国石油化工股份有限公司 | Drifting scraping integration tool |
| CN203321442U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Multifunctional casing scraper for downhole operation |
| CN103711456A (en) * | 2013-12-16 | 2014-04-09 | 东营市福利德石油科技开发有限责任公司 | Hydraulic switching tool for deep-water oil well |
| CN104033128A (en) * | 2014-06-18 | 2014-09-10 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Hydraulic delivery type tube scraper |
| CN104295258B (en) * | 2014-10-08 | 2017-08-29 | 宝鸡瑞通石油装备有限公司 | The integral operation gauguste cutter of new dredging, scraping wall and working string |
| CN204627487U (en) * | 2015-03-24 | 2015-09-09 | 中国石油天然气股份有限公司 | Drifting and pipe scraping integrated tool |
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2015
- 2015-03-24 CN CN201510129233.6A patent/CN104763367B/en active Active
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