CN209556983U - A kind of radial level rotary drilling wellbore clean tool - Google Patents
A kind of radial level rotary drilling wellbore clean tool Download PDFInfo
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- CN209556983U CN209556983U CN201920044640.0U CN201920044640U CN209556983U CN 209556983 U CN209556983 U CN 209556983U CN 201920044640 U CN201920044640 U CN 201920044640U CN 209556983 U CN209556983 U CN 209556983U
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Abstract
The utility model relates to radially horizontal well drilling technology field, in particular to a kind of radial level rotary drilling wellbore clean tool.The device includes oil-pipe external wall scraper, tube inner wall scraper and internal surface of sleeve pipe scraper；The oil-pipe external wall scraper includes the intermediate upper cover plate for being provided with channel, upper cover plate, which matches with blowout preventer upper flange and passes through fixing bolt, fixture nut and blowout preventer upper flange, to be connect, scraping disk I is set between upper cover plate and blowout preventer upper flange, multiple scraping valves are set on the inside of scraping disk I, and all scraping valve inner side edges form circle.The utility model, which realizes, to pre-process pit shaft, complete effective cleaning to oil, casing, avoid tool jams, shorten construction period, reduce construction cost, reduce because blocking caused by other down hole problem odds, guarantee construction tool can smooth tripping in, meet radial level rotary drilling technology site operation to the needs of wellbore environment.
Description
Technical field:
The utility model relates to radially horizontal well drilling technology field, in particular to a kind of radial level rotary drilling pit shaft
Burnisher.
Background technique:
Radial level rotary drilling technology is a kind of oil gas field yield-increasing technology gradually risen in recent years, and the technology is available
High-pressure water jet and mud motor combined-breaking rock, in a bite oil/gas well different depth and direction on drill out multiple radial directions
Slim-hole increases stratum drainage area, achievees the purpose that volume increase.
Radial level rotary drilling technology can be divided into casing sidetracking and two parts are crept on stratum.Currently, casing sidetracking is main
It is to be completed using specialized barrel window opening tool, fenestration procedure is simple and reliable, and window is complete, but tool construction is complex,
Inner flow passage is narrow, when underground water quality inferiority, it is impure more when easily block；Stratum drilling section utilizes dedicated guiding
Track can in lesser size range by drilling tool by it is axially adjustable be it is radial, to realize radial drilling, but guide rail
It is narrow and in 90 ° bending, easily there is accumulated plugging；In addition, there is stream in the drilling tools such as microbit, flex-stem, filtering pipe nipple
The narrow easy blockage problem in road.The blocking of window opening tool, guide rail and microbit drilling tool can all cause construction to stop, and need
Tool could descend well construction after overhauling cleaning again again out, not only increase operating expenses, extend construction period, simultaneously also
It will increase other down-hole accident odds.
Utility model content:
The technical problem to be solved by the present invention is to provide a kind of radial level rotary drilling wellbore clean tool, the dresses
Setting realizes and can pre-process to pit shaft, completes effective cleaning to oil, casing, avoids tool jams, shortens construction week
Phase reduces construction cost, reduces other down hole problem odds because of caused by blocking, guarantees that construction tool can
Smooth tripping in meets radial level rotary drilling technology site operation to the needs of wellbore environment.Overcome existing radial level
Blocking easily occurs during rotary drilling operations causes construction to stop, and increases operating expenses, extends the deficiency of construction period.
Technical solution adopted in the utility model is: a kind of radial level rotary drilling wellbore clean tool, including oil
Pipe outer wall scraper, tube inner wall scraper and internal surface of sleeve pipe scraper；During the oil-pipe external wall scraper includes
Between be provided with the upper cover plate in channel, upper cover plate and blowout preventer upper flange match and pass through fixing bolt, fixture nut and blowout preventer
Upper flange connection is arranged scraping disk I, multiple scraping valves is arranged on the inside of scraping disk I, owns between upper cover plate and blowout preventer upper flange
Scraping valve inner side edge forms circle；
The tube inner wall scraper includes top connection I, central tube I and lower contact I, and I upper and lower side of central tube connects respectively
Connector I and lower contact I are connected, I top of central tube is circumferentially evenly equipped with multiple upper mounting grooves, is equipped with upper scraping block I in upper mounting groove,
I lower part of central tube is circumferentially evenly equipped with multiple lower mounting grooves, lower scraping block I is equipped in lower mounting groove, in upper mounting groove and upper scraping
Support spring I is installed between block I, support spring I under installing between lower mounting groove and lower scraping block I connects on central tube I
Position-limit mechanism, upper I upper and lower side of scraping block are limited by top connection I and position-limit mechanism respectively, and lower I upper and lower side of scraping block is limited respectively
Mechanism and lower contact I limit, and I lower end outlet diameter of lower contact is less than tube inner wall scraper inner passage latus rectum；
Described sleeve pipe inner wall scraper includes oil connection and circulation pipe, and oil connection is connected with circulation pipe, circulation
Circulation port is provided on pipe, circulation pipe lower end connects top connection II, and II upper and lower side of central tube is separately connected top connection II and lower contact
II, II top of central tube is circumferentially evenly equipped with multiple upper mounting grooves, and upper scraping block II, II lower part of central tube week are equipped in upper mounting groove
To multiple lower mounting grooves are evenly equipped with, it is equipped with lower scraping block II in lower mounting groove, is installed between upper mounting groove and upper scraping block II
Upper support spring II, support spring II under installing between lower mounting groove and lower scraping block II connect position restrainer on central tube II
Structure, upper II upper and lower side of scraping block are limited by top connection II and position-limit mechanism respectively, and lower II upper and lower side of scraping block is limited machine respectively
Structure and lower contact II limit；
Tube inner wall scraper can penetrate oil connection, circulation pipe and the inner wall step for being limited in top connection II
On.
Scraping disk II is arranged in I lower end of scraping disk, is provided with and I quantity of scraping disk, size and shape phase on the inside of scraping disk II
Same scraping valve, the scraping valve of scraping disk II and the scraping valve interlaced arrangement of scraping disk I.
The bolt hole to match with blowout preventer upper flange, scraping disk I and scraping are distributed on scraping disk I and scraping disk II
Disk II is connected by fixing bolt, fixture nut and blowout preventer upper flange.
12 scraping valves are evenly arranged on scraping disk I and scraping disk II respectively.
Scraping disk I and scraping disk II are all made of spring steel and are made.
The upper scraping block I on I top of central tube of tube inner wall scraper and lower I interlaced arrangement of subordinate's scraping block, it is described
The upper scraping block II on II top of central tube of internal surface of sleeve pipe scraper and lower II interlaced arrangement of subordinate's scraping block.
It is connected through a screw thread between the central tube I and top connection I of tube inner wall scraper and solid by upper fastening screw I
It is fixed, it is connected through a screw thread between central tube I and lower contact I and fixed by lower fastening screw I.
The position-limit mechanism of tube inner wall scraper is identical as the position-limit mechanism structure of internal surface of sleeve pipe scraper, in oil pipe
The position-limit mechanism of wall scraper includes the stop collar of two semicirculars, which is fixed by screws on central tube I.
It is oblique on the upper scraping block I of tube inner wall scraper and lower I outer wall of scraping block to be evenly equipped with scraping tooth, described sleeve pipe
It is oblique on the upper scraping block II of inner wall scraper and lower II outer wall of scraping block to be evenly equipped with scraping tooth.
The beneficial effects of the utility model are: the utility model, which realizes, to pre-process pit shaft, complete to oil,
Effective cleaning of casing avoids tool jams, shortens construction period, reduces construction cost, reduces other because of caused by blocking
Down hole problem odds, guarantee construction tool can smooth tripping in, meet radial level rotary drilling technology scene
The needs constructed to wellbore environment.
Detailed description of the invention:
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural schematic diagram of oil-pipe external wall scraper.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural schematic diagram of internal surface of sleeve pipe scraper.
Fig. 4 is the structural schematic diagram of tube inner wall scraper.
Fig. 5 be in Fig. 4 A-A to sectional view.
Fig. 6 is B-B direction sectional view in Fig. 4.
Specific embodiment:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of radial level rotary drilling wellbore clean tool, including oil
Pipe outer wall scraper, tube inner wall scraper 8 and internal surface of sleeve pipe scraper；During the oil-pipe external wall scraper includes
Between be provided with the upper cover plate 1 in channel, upper cover plate 1 and blowout preventer upper flange match and pass through fixing bolt 2, fixture nut 5 and seal
The connection of well device upper flange, is arranged scraping disk I 3 between upper cover plate 1 and blowout preventer upper flange, multiple scrapings are arranged in I 3 inside of scraping disk
Valve 9, all 9 inner side edges of scraping valve form circle, and scraping disk I 3 is centrally formed through-hole, and aperture is less than oil pipe outer diameter, so that oil pipe
I 3 middle through-hole of scraping disk can be passed through under certain external force, 9 stress of scraping valve is deformed, and is risen to oil-pipe external wall
To scraping action.I 3 lower end of scraping disk is arranged scraping disk II 4, the inside of scraping disk II 4 be provided with I 3 quantity of scraping disk, size and
The identical scraping valve 9 of shape, the scraping valve 9 of scraping disk II 4 and 9 interlaced arrangement of scraping valve of scraping disk I 3, keep scraping more complete
Face is thorough.
The tube inner wall scraper 8 includes top connection I 81, central tube I 82 and lower contact I 810, on central tube I 82
Lower end is separately connected top connection I 81 and lower contact I 810, and I 82 top of central tube is circumferentially evenly equipped with multiple upper mounting grooves, upper installation
Upper scraping block I 84 is equipped in slot, I 82 lower part of central tube is circumferentially evenly equipped with multiple lower mounting grooves, is equipped with lower scraping in lower mounting groove
Block I 88, upper scraping block I 84 and lower scraping block I 88 are covered with whole circumference, install between upper mounting groove and upper scraping block I 84
Support spring I 85, support spring I 89 under installing between lower mounting groove and lower scraping block I 88 connect limit on central tube I 82
Mechanism, upper I 84 upper and lower side of scraping block are limited by top connection I 81 and position-limit mechanism respectively, and lower I 88 upper and lower side of scraping block is limited respectively
Position mechanism and lower contact I 810 limit, not by external force when, the upper and lower open-shaped state of support spring, work at upper and lower scraping block
Have outer diameter and be greater than pipe aperture, after being squeezed by external force, the compression of upper and lower support spring, reduced diameter at scraping block, can smoothly into
Entering oil pipe, upper and lower support spring is in compressive state at this time, a normal pressure to tube inner wall direction can be applied to scraping block,
Guarantee that scraping block is close to want the tube inner wall of scraping process, enhances shaving effect.I 810 lower end outlet diameter of lower contact is less than oil
8 inner passage latus rectum of inside pipe wall scraper, guarantees that larger pressure drop can be generated when fluid passes through.
Described sleeve pipe inner wall scraper includes oil connection 6 and circulation pipe 7, and oil connection 6 is connected with circulation pipe 7,
Circulation port 10 is provided on circulation pipe 7,7 lower end of circulation pipe connects top connection II, and II upper and lower side of central tube is separately connected top connection II
With lower contact II, II top of central tube is circumferentially evenly equipped with multiple upper mounting grooves, is equipped with upper scraping block II, central tube in upper mounting groove
II lower part is circumferentially evenly equipped with multiple lower mounting grooves, is equipped with lower scraping block II, upper scraping block II and lower scraping block II in lower mounting groove
It is covered with whole circumference, support spring II is installed between upper mounting groove and upper scraping block II, in lower mounting groove and lower scraping block
Lower support spring II is installed between II, connects position-limit mechanism on central tube II, upper II upper and lower side of scraping block is respectively by top connection II
It is limited with position-limit mechanism, lower II upper and lower side of scraping block is limited mechanism respectively and lower contact II limits；
Tube inner wall scraper 8 can penetrate oil connection 6, circulation pipe 7 and the interior wall stand for being limited in top connection II
On rank.
The bolt hole to match with blowout preventer upper flange, I 3 He of scraping disk are distributed on scraping disk I 3 and scraping disk II 4
Scraping disk II 4 is connect by fixing bolt 2, fixture nut 5 with blowout preventer upper flange.
12 scraping valves 9 are evenly arranged on scraping disk I 3 and scraping disk II 4 respectively.
Scraping disk I 3 and scraping disk II 4 are all made of spring steel and are made.
The upper scraping block I 84 on I 82 top of central tube of tube inner wall scraper 8 and lower subordinate's scraping block I 88 interlock cloth
It sets, the upper scraping block II on II top of central tube of described sleeve pipe inner wall scraper and lower II interlaced arrangement of subordinate's scraping block.
It is connected through a screw thread between the central tube I 82 and top connection I 81 of tube inner wall scraper 8 and by upper fastening spiral shell
It follows closely I 83 to fix, be connected through a screw thread between central tube I 82 and lower contact I 810 and fixed by lower fastening screw I 811.
The position-limit mechanism of tube inner wall scraper 8 is identical as the position-limit mechanism structure of internal surface of sleeve pipe scraper, oil pipe
The position-limit mechanism of inner wall scraper 8 includes the stop collar 86 of two semicirculars, during which is fixed on by screw 87
On heart pipe I 82.
It is oblique on the upper scraping block I 84 of tube inner wall scraper 8 and lower I 88 outer wall of scraping block to be evenly equipped with scraping tooth, institute
State it is oblique on the upper scraping block II and lower II outer wall of scraping block of internal surface of sleeve pipe scraper be evenly equipped with scraping tooth, be conducive to scraping, row
Bits.
Scene is in use, oil pipe connected pipes connector 6 installs oil-pipe external wall in internal surface of sleeve pipe scraper tripping in pit shaft
Scraper, tripping in oil pipe when oil pipe passes through oil-pipe external wall scraper, complete the scraping cleaning of oil-pipe external wall.Internal surface of sleeve pipe
Scraper is delivered to design position, and the circulation port of circulation pipe 7 should be at the bottom bore position of design or less at this time.Just
Under normal state, the upper and lower support spring of internal surface of sleeve pipe scraper is in open configuration, and the outer diameter of upper and lower scraping block is greater than set
Bore, when being squeezed by external force, support spring compression, scraping block reduced diameter can be in tripping in casing, at this point, scraping
Block has a normal pressure to internal surface of sleeve pipe, therefore during tool is gone into the well, and scraping block and internal surface of sleeve pipe are in friction shape always
State can scrape away the impurity adhered on internal surface of sleeve pipe, complete the scraping cleaning of internal surface of sleeve pipe.Design position is arrived under tool
Afterwards, circulation is just washed, and small size impurity is washed out pit shaft, large scale impurity falls into shaft bottom.Loop exit sample is picked up, when free from admixture
Stop well-flushing.Tube inner wall scraper 8 is put into oil pipe in well head, under hydraulic action, 8 energy of tube inner wall scraper
It is enough smoothly to be slided in oil pipe, carry out tube inner wall scraping cleaning.Design has limited step at II inner wall of top connection, can be avoided
Tube inner wall scraper 8 skids off oil pipe column, falls into shaft bottom.Tube inner wall scraper 8 slips down to circulation pipe circulation port 10
It before, is in half blocked state inside tubing string, well-flushing pump pressure is higher, and after tube inner wall scraper 8 streaks circulation port 10, water can
It being recycled by circulation port 10, at this time pump pressure decline, it was demonstrated that tube inner wall cleaning terminates, and continues cycling through well-flushing, picks up sample,
Until free from admixture in outlet sample, meets the requirements.If it is more that tube inner wall adheres to impurity, tube inner wall scraping can be repeatedly put into
Tool 8 is just being washed, and guarantees wellbore clean to the greatest extent, is completed the scraping cleaning of tube inner wall, after reaching requirement, is played flowline
Tubing string is disposed.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it still can be with
It modifies to the utility model or equivalent replacement, to reach identical technical effect；Needs are used as long as meeting, all in this reality
Within novel protection scope.
Claims (9)
1. a kind of radial level rotary drilling wellbore clean tool, it is characterised in that: including in oil-pipe external wall scraper, oil pipe
Wall scraper (8) and internal surface of sleeve pipe scraper；The oil-pipe external wall scraper includes the intermediate upper cover plate for being provided with channel
(1), upper cover plate (1) and blowout preventer upper flange match and pass through fixing bolt (2), fixture nut (5) and blowout preventer upper flange
Scraping disk I (3) are arranged between upper cover plate (1) and blowout preventer upper flange in connection, and multiple scraping valves are arranged on the inside of scraping disk I (3)
(9), all scraping valve (9) inner side edges form circle；
The tube inner wall scraper (8) includes top connection I (81), central tube I (82) and lower contact I (810), central tube I
(82) upper and lower side is separately connected top connection I (81) and lower contact I (810), and central tube I (82) top is circumferentially evenly equipped with multiple upper peaces
Tankage, upper mounting groove is interior to be equipped with upper scraping block I (84), and central tube I (82) lower part is circumferentially evenly equipped with multiple lower mounting grooves, lower installation
It is equipped with lower scraping block I (88) in slot, support spring I (85) is installed between upper mounting groove and upper scraping block I (84), in lower peace
Lower support spring I (89) is installed between tankage and lower scraping block I (88), connects position-limit mechanism, upper scraping block on central tube I (82)
I (84) upper and lower side is limited by top connection I (81) and position-limit mechanism respectively, and lower I (88) upper and lower side of scraping block is limited mechanism respectively
It is limited with lower contact I (810), lower contact I (810) lower end outlet diameter is logical less than tube inner wall scraper (8) inner passage
Diameter；
Described sleeve pipe inner wall scraper includes oil connection (6) and circulation pipe (7), and oil connection (6) is connected with circulation pipe (7)
It connects, is provided on circulation pipe (7) circulation port (10), circulation pipe (7) lower end connects top connection II, and II upper and lower side of central tube is separately connected
Top connection II and lower contact II, II top of central tube are circumferentially evenly equipped with multiple upper mounting grooves, are equipped with upper scraping block in upper mounting groove
II, II lower part of central tube is circumferentially evenly equipped with multiple lower mounting grooves, and lower scraping block II is equipped in lower mounting groove, upper mounting groove with it is upper
Support spring II is installed between scraping block II, support spring II under being installed between lower mounting groove and lower scraping block II, center
Position-limit mechanism is connected on pipe II, upper II upper and lower side of scraping block is limited by top connection II and position-limit mechanism respectively, on lower scraping block II
Lower end is limited mechanism respectively and lower contact II limits；
Tube inner wall scraper (8) can penetrate oil connection (6), circulation pipe (7) and the inner wall for being limited in top connection II
On step.
2. radial level rotary drilling wellbore clean tool described in accordance with the claim 1, it is characterised in that: the scraping disk I
(3) lower end setting scraping disk II (4), scraping disk II (4) inside are provided with identical with scraping disk I (3) quantity, size and shape
Scraping valve (9), the scraping valve (9) of scraping disk II (4) and scraping valve (9) interlaced arrangement of scraping disk I (3).
3. radial level rotary drilling wellbore clean tool according to claim 2, it is characterised in that: the scraping disk I
(3) bolt hole to match with blowout preventer upper flange, scraping disk I (3) and scraping disk II and are distributed on scraping disk II (4)
(4) it is connect by fixing bolt (2), fixture nut (5) with blowout preventer upper flange.
4. radial level rotary drilling wellbore clean tool according to claim 2, it is characterised in that: the scraping disk I
(3) and on scraping disk II (4) it is evenly arranged with 12 scraping valves (9) respectively.
5. radial level rotary drilling wellbore clean tool according to claim 2, it is characterised in that: the scraping disk I
(3) it is all made of spring steel with scraping disk II (4) and is made.
6. radial level rotary drilling wellbore clean tool described in accordance with the claim 1, it is characterised in that: the tube inner wall
The upper scraping block I (84) on central tube I (82) top of scraper (8) and lower I (88) interlaced arrangement of subordinate's scraping block, the set
The upper scraping block II on II top of central tube of inside pipe wall scraper and lower II interlaced arrangement of subordinate's scraping block.
7. radial level rotary drilling wellbore clean tool described in accordance with the claim 1, it is characterised in that: the tube inner wall
It is connected through a screw thread between the central tube I (82) and top connection I (81) of scraper (8) and solid by upper fastening screw I (83)
It is fixed, it is connected through a screw thread between central tube I (82) and lower contact I (810) and fixed by lower fastening screw I (811).
8. radial level rotary drilling wellbore clean tool described in accordance with the claim 1, it is characterised in that: the tube inner wall
The position-limit mechanism of scraper (8) and the position-limit mechanism structure of internal surface of sleeve pipe scraper are identical, tube inner wall scraper (8)
Position-limit mechanism include two semicirculars stop collar (86), which is fixed on central tube I by screw (87)
(82) on.
9. radial level rotary drilling wellbore clean tool described in accordance with the claim 1, it is characterised in that: the tube inner wall
It is oblique on the upper scraping block I (84) of scraper (8) and lower I (88) outer wall of scraping block to be evenly equipped with scraping tooth, described sleeve pipe inner wall
It is oblique on the upper scraping block II of scraper and lower II outer wall of scraping block to be evenly equipped with scraping tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044640.0U CN209556983U (en) | 2019-01-11 | 2019-01-11 | A kind of radial level rotary drilling wellbore clean tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044640.0U CN209556983U (en) | 2019-01-11 | 2019-01-11 | A kind of radial level rotary drilling wellbore clean tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209556983U true CN209556983U (en) | 2019-10-29 |
Family
ID=68305976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920044640.0U Active CN209556983U (en) | 2019-01-11 | 2019-01-11 | A kind of radial level rotary drilling wellbore clean tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209556983U (en) |
-
2019
- 2019-01-11 CN CN201920044640.0U patent/CN209556983U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201009 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |