CN108952632A - Pipe scraping device and method - Google Patents
Pipe scraping device and method Download PDFInfo
- Publication number
- CN108952632A CN108952632A CN201710355685.5A CN201710355685A CN108952632A CN 108952632 A CN108952632 A CN 108952632A CN 201710355685 A CN201710355685 A CN 201710355685A CN 108952632 A CN108952632 A CN 108952632A
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- motor
- pipe
- pipe fitting
- scraping
- oil pipe
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- 238000007790 scraping Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a pipe scraping device and a pipe scraping method, and belongs to the field of oilfield machinery. The device includes: the pipe fitting is scraped in a rotating mode; the motor is connected with the upper end of the scraping pipe fitting through a coupling; the instrument vehicle is connected with the motor through a cable and is used for controlling the motor to run; the centralizer is sleeved on the coupler and connected with the lower end of the motor, and the centralizer is sleeved on the cable and connected with the upper end of the motor. Through setting up motor, instrument truck, be convenient for make the motor operation through control instrument truck for scrape the pipe fitting and provide sufficient rotation power, and then be convenient for scrape the pipe fitting and scrape the dirt of oil pipe inner wall high-efficiently. Through setting up the centralizer that is located between shaft coupling and the motor to and the at least one centralizer of being connected with the motor upper end, be convenient for make scrape pipe fitting and motor and be located oil pipe's inner chamber middle part, can avoid scraping pipe fitting and take place the incline and scrape the damage oil pipe inner wall, still be convenient for scrape the dirt of oil pipe inner wall high-efficiently.
Description
Technical field
The present invention relates to oilfield machinery field, in particular to a kind of pipe cleaning device and method.
Background technique
In oilfield process, the oil pipe of oil well and water injection well is all the important channel for linking up ground and stratum.But oil
Pipe after prolonged use, is easy fouling, wax deposition, salt crust, or adhere to other dirts, this reduce the mistakes of oil pipe on inner wall
Flow area declines the actual fed ability of oil pipe, unsmooth so as to cause there is oil pipe channel during water filling, workover treatment
It is logical, tool be hampered can not tripping in the problem of, it is therefore desirable to periodically oil pipe is cleared up.But the attachment of the dirt of tube inner wall
Power is strong, needs just to be easy by way of scraping to clear up dirt.Based on above-mentioned it is found that providing one kind to scrape pipe device is very must
It wants.
The prior art provides one kind and scrapes pipe device, which includes: to scrape die cylinder, be rotatably mounted around and scrape die cylinder
On scrape pipe sleeve, be uniformly arranged in the circumferential direction and scraping multiple screw blades on pipe sleeve outer wall.Wherein, it scrapes on the wall of die cylinder and scrapes
Multiple flowing holes of connection are provided on the wall of pipe sleeve, and flowing hole is between adjacent screw blade.In use, will bore
Bar is connect with die cylinder is scraped, and in tripping in oil pipe, and then the pump note working solution into drilling rod, working solution are flowed by the inner cavity for scraping die cylinder
It passes to and scrapes outside pipe sleeve, and the gap circulation between screw blade, scrape pipe sleeve rotation to push, then in screw blade scraping oil pipe
Dirt on wall.By the depth in control drilling rod tripping in oil pipe, with the dirt of scraping oil pipe different location.Finally by drilling rod
This is scraped into pipe device and pulls out oil pipe, completes oil pipe scraping.
The inventor finds that the existing technology has at least the following problems:
What the prior art provided scrapes pipe device mainly by filling the water into drill string, and water is flow between screw blade by flowing hole
Gap, and screw blade thrust is given, to realize the rotation for scraping pipe sleeve, and then the dirt of scraping tube inner wall.This mode
Keep the rotational power of the device insufficient, scraping efficiency is low.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing, a kind of rotational power is sufficient, and scraping efficiency is high
Pipe cleaning device and method.Specific technical solution is as follows:
In a first aspect, the embodiment of the invention provides one kind to scrape pipe device, described device includes: to scrape pipe fitting, passes through rotation
Mode scraping pipe scale；The motor being connect with the upper end for scraping pipe fitting by shaft coupling；Pass through cable connection with the motor
Measuring truck, the measuring truck is for controlling the motor operation；It is sleeved on the shaft coupling, and connects with the motor lower end
The centralizer connect, and suit is on the cables, and at least one the described centralizer connecting with the motor upper end.
Specifically, preferably, described device further include: bumper jar, the bumper jar are set on the cables, and with
The upper end of the centralizer connects.
Specifically, preferably, described device further include: weighted lever, the weighted lever are set on the cables, and with
The upper end of the bumper jar connects.
Specifically, preferably, the pipe fitting of scraping is drill bit.
Specifically, preferably, it is described scrape pipe fitting include: connect with the shaft coupling scrape tube body, be arranged described
Multiple blades on pipe cleaning body outer wall.
Specifically, preferably, the centralizer includes: righting cylinder, is uniformly arranged in the circumferential direction in the righting cylinder
Multiple righting parts on outer wall；The radial outer end of each righting part and the inner wall of oil pipe offset.
Specifically, preferably, the arc-shaped structure of righting part, and the arc end of the righting part and the oil pipe
Inner wall offsets.
Specifically, preferably, the radical length between the radial outer end of the righting part and the righting cylinder is adjustable.
Specifically, preferably, described device further include: the fixed pulley at well head is set, for make the cable around
It crosses.
Second aspect, the embodiment of the invention also provides the method for carrying out scraping to oil pipe using above-mentioned apparatus, the sides
Method includes:
By cable pulling by motor, scrape pipe fitting, in multiple centralizer tripping in oil pipes, it is multiple described during tripping in
Centralizer makes described to scrape pipe fitting and the motor is located at the middle part of the oil pipe inner cavity.
Control instrument vehicle makes the motor operation, the motor impart power to it is described scrape pipe fitting, it is described to scrape pipe fitting rotation
Turn, with the dirt on tube inner wall described in scraping.
After to scraping, make the motor stopping, by the cable by the motor, described scrape pipe fitting, Duo Gesuo
Centralizer is stated to pull out out of described oil pipe.
Technical solution provided in an embodiment of the present invention has the benefit that
It is provided in an embodiment of the present invention to scrape pipe device, it is electrically connected by being arranged and scraping pipe fitting the motor connecting, and with motor
The measuring truck connect to provide sufficient rotational power to scrape pipe fitting, and then is convenient for convenient for making motor operation by control instrument vehicle
Scrape the dirt of pipe fitting efficiently scraping tube inner wall.Scrape centralizer between pipe fitting and motor by being arranged to be located at, and with electricity
The sequentially connected multiple centralizers in machine upper end are located in the middle part of the inner cavity of oil pipe convenient for making to scrape pipe fitting and motor, can avoid scraping pipe fitting
It glances off and scrapes damage tube inner wall, be also convenient for the dirt of efficiently scraping tube inner wall.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram provided in an embodiment of the present invention for scraping pipe device；
Fig. 2 is the structural schematic diagram of centralizer provided in an embodiment of the present invention.
Wherein, appended drawing reference respectively indicates:
1 scrapes pipe fitting,
2 motors,
3 cables,
4 measuring trucks,
5 centralizers,
501 righting cylinders,
502 righting parts,
6 bumper jars,
7 weighted levers,
8 fixed pulleys,
9 oil pipes,
10 production trees,
11 lubricators.
Specific embodiment
Unless otherwise defined, all technical terms used in the embodiment of the present invention all have usual with those skilled in the art
The identical meaning understood.To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to this hair
Bright embodiment is described in further detail.
In a first aspect, the embodiment of the invention provides one kind to scrape pipe device, as shown in Fig. 1, which includes: to scrape pipe fitting
1, the scraping pipe scale by way of rotation；The motor 2 being connect with the upper end for scraping pipe fitting 1 by shaft coupling；Pass through cable with motor 2
The measuring truck 4 of 3 connections, measuring truck 4 is for controlling the operation of motor 2；One for being sleeved on shaft coupling, and being connect with 2 lower end of motor
A centralizer 5, and at least one centralizer 5 for being sleeved on cable 3, and being connect with 2 upper end of motor.
It should be noted that in embodiments of the present invention, scrape the devices such as pipe fitting 1, motor 2, centralizer 5 " upper end " and
" lower end " is " upper end " apart from the closer one end of well head, apart from well head it is to be understood that by the device after tripping in oil pipe 9
Farther away one end is " lower end ".
When the number for the centralizer 5 connecting with 2 upper end of motor is multiple, multiple centralizers 5 are sequentially connected with.
The working principle provided in an embodiment of the present invention for scraping pipe device is given below and is described:
Pipe fitting 1, motor 2 will be scraped, in 5 tripping in oil pipe 9 of multiple centralizers by the traction of cable 3, it is multiple during tripping in
Centralizer 5 makes to scrape pipe fitting 1 and motor 2 is located at the middle part of 9 inner cavity of oil pipe, glances off and in scraping oil pipe 9 to avoid pipe fitting 1 is scraped
Wall, and then avoid 9 inner wall eccentric wear of oil pipe.After pipe fitting 1 to be doctored, motor 2,5 tripping in oil pipe of multiple centralizers, 9 predetermined depth, control
Measuring truck 4 runs motor 2.It due to motor 2 and scrapes by shaft coupling connection between pipe fitting 1, therefore motor 2 is imparted power to and scraped
Pipe fitting 1 scrapes the rotation of pipe fitting 1, with the dirt on 9 inner wall of scraping oil pipe.Pipe cleaning part 1 can be made right by adjusting the length of cable 3
The different location of oil pipe 9 carries out scraping, with the dirt cleared up on 9 inner wall of oil pipe.After scraping to be done to entire oil pipe 9, control
Measuring truck 4 processed shuts down motor 2, then will scrape pipe fitting 1, motor 2, centralizer 5 by cable 3 and pull out out of oil pipe 9.Right
During oil pipe 9 carries out scraping, intermittent 2 start and stop of motor can also be controlled by measuring truck 4, with scraping oil pipe 9.
It is provided in an embodiment of the present invention to scrape pipe device, it is electric by being arranged and scraping pipe fitting 1 motor 2 connecting, and with motor 2
The measuring truck 4 of connection, convenient for running motor 2 by control instrument vehicle 4, to provide sufficient rotational power to scrape pipe fitting 1, into
And convenient for scraping the dirt of efficiently 9 inner wall of scraping oil pipe of pipe fitting 1.By the way that the centralizer for being located at and scraping between pipe fitting 1 and motor 2 is arranged
5, and at least one centralizer 5 being connect with 2 upper end of motor, it is located in the inner cavity of oil pipe 9 convenient for making to scrape pipe fitting 1 and motor 2
Portion can avoid scraping pipe fitting 1 and glance off and scrape damage 9 inner wall of oil pipe, is also convenient for the dirt of efficiently 9 inner wall of scraping oil pipe.
As shown in Fig. 1, device provided in an embodiment of the present invention further include: bumper jar 6, bumper jar 6 are sleeved on cable 3
On, and connect with the upper end of centralizer 5.
Bumper jar 6 is connect with the upper end of centralizer 5, i.e., connect with the upper end of multiple sequentially connected centralizers 5.By setting
Set bumper jar 6, can to avoid pipe cleaning part 1, motor 2, centralizer 5 in oil pipe 9 blocking.
Bumper jar 6 is device known in the art, and main includes three kinds: mechanic jar 6, hydraulic shock device 6, hydraulic
Mechanical integral type bumper jar 6.By taking mechanic jar 6 as an example, to it, specifically working principle is given and is described:
There are many structures of mechanic jar 6, and by taking common mechanic jar 6 as an example, which includes by interior
To operation axis, the operation set, friction bushings being sequentially set with outside.Wherein, it runs and is provided with the first external tooth on the outer wall of axis, operation set
Inner wall on be provided with the first internal tooth being meshed with the first external tooth.It runs and is provided with the second external tooth on the outer wall of set, friction lining
Second internal tooth opposite with the second external tooth is provided on the inner wall of set.When device (such as scraping pipe fitting 1) is by card, cable 3 will fluff,
By upper portable cable 3, runs axis and operation set is driven to move up, relatively moved between operation set and friction bushings.Outside second
When tooth is opposite with the between cog of the second internal tooth, the first external tooth for running axis is skidded off between cog in run set first, and the second external tooth
It is meshed with the second internal tooth.At this point, scraping the jarring at by card of pipe fitting 1, aforesaid operations are repeated several times, it can be achieved that unfreezing.
Flowed friction tripping in oil pipe 9 is overcome for the ease of enabling to scrape pipe fitting 1, and as shown in Fig. 1, the embodiment of the present invention mentions
The device of confession further include: weighted lever 7, weighted lever 7 are sleeved on cable 3, and are connect with the upper end of bumper jar 6.
Weighted lever 7 in tubular construction, in order to be sleeved on cable 3.The material of weighted lever 7 is with wear-resisting, corrosion-resistant
The hard alloy of effect, such as tungsten steel alloy, in order to be used in the oil pipe 9 filled with liquid.
In embodiments of the present invention, adjacent for the ease of the dismounting between motor 2, centralizer 5, bumper jar 6, weighted lever 7
It is connected by dismountable mode between two devices.Preferably, between centralizer 5 and motor 2, centralizer 5 and jarring
Between device 6, between bumper jar 6 and weighted lever 7 be to be threadedly coupled, the mode of threaded connection is easy setting, convenient for be connected two
Dismounting between a device.
It scrapes the dynamic rotation that pipe fitting 1 is provided by motor 2 and the dirt of 9 inner wall of oil pipe can be scraped and chipped away, to reach cleaning
The purpose of oil pipe 9.Wherein, scrape pipe fitting 1 can for various structures, simple based on structure, under the premise of being easy setting, provide with
Lower two specific embodiments:
As the first embodiment: scraping pipe fitting 1 is drill bit.It is axially disposed on the outer wall of drill bit to have an auger rib, it is adjacent
Flow-conveying groove is formed between two auger ribs.Dirt can be scraped and be chipped away by auger rib, be scraped in the dirt and oil pipe 9 chipped away
Liquid mixing can be circulated by flow-conveying groove, scraped pipe fitting 1 to avoid dirt obstruction and be drilled down into.The drill bit device common for this field
Part is easy to obtain.
As second of embodiment: scrape pipe fitting 1 include: connect with shaft coupling scrape tube body, setting scraping tube body
Multiple blades on outer wall.
It is rotated by scraping pipe fitting 1, the dirt on 9 inner wall of oil pipe can be scraped and be chipped away by blade.The pipe fitting 1 of scraping of the structure is easy
Setting, can be set the blade with different structure.For example, blade can structure, arc-shaped flaky structure, side in the shape of a spiral
Shape laminated structure etc..
When blade is above structure, it is vertically arranged multiple blades equably along the circumferential direction for scraping tube body, and each knife
The side wall of piece is connect with the outer wall vertical for scraping tube body.The dirt for enabling to scrape efficiently 9 inner wall of scraping oil pipe of pipe fitting 1 is arranged such
Dirt.
There are many connection types for scraping tube body and blade, such as can be to be welded to connect, be integrally formed or detachable
Connection.
Preferably, scrape to be detachably connected between tube body and blade, in order to replace the blade with different structure,
And the blade of setting different number.
Specifically, it scrapes and is provided with multiple grooves on the wall of tube body, the side wall of blade is set as the end matched with groove
The end of blade side wall is caught in groove by portion, to realize being detachably connected for the two.This dismountable set-up mode letter
It is single, it is easy to implement the dismounting of the two.
Centralizer 5 has centralizing function, and there are many structures, provides under the premise of simple based on structure real in detail below
Apply mode:
As shown in Fig. 2, centralizer 5 includes: righting cylinder 501, is uniformly arranged in the circumferential direction on 501 outer wall of righting cylinder
Multiple righting parts 502；The inner wall of the radial outer end and oil pipe 9 of each righting part 502 offsets.
The centralizer 5 of the structure is easy setting, can be easily implemented righting function.
Righting part 502 can be set to various structures.Preferably, the arc-shaped structure of righting part 502, righting part 502
Arc end and the inner wall of oil pipe 9 offset.The righting part 502 of " arc end " i.e. radial outer end, arcuate structure is easy setting, can keep away
Exempt to scratch 9 inner wall of oil pipe.
The righting part 502 of arc-shaped structure specifically can be set are as follows: semicircle cyclic structure or semicircle laminated structure,
The righting part 502 of both structures is easy setting.It is preferred that the righting part 502 of semicircular in shape cyclic structure, in order to which dirt is being helped
Circulation in the semicircle circle of positive part 502.
Righting part 502 can be arranged in several ways on righting cylinder 501, with the righting of semicircular in shape cyclic structure
For part 502, multiple righting parts 502 can be vertically arranged, are obliquely installed, be horizontally disposed with, and are circumferentially evenly provided on and help
On the outer wall of positive cylinder 501.
There are many connection types between righting part 502 and righting cylinder 501, for example, righting part 502 and righting cylinder
Connection type between body 501 can be welded connecting, or be detachably connected.It is preferred that dismountable connection type, with
It is conveniently replaceable the righting part 502 with different structure and quantity.
Detachable connection method between righting part 502 and righting cylinder 501 can be accomplished by the following way:
It is provided with multiple grooves on the outer wall of righting cylinder 501, semicircular in shape cyclic structure or arc-shaped flaky structure
The end of righting part 502 is set as the structure matched with groove, and the end of righting part 502 is caught in groove, it can be achieved that righting
Part 502 is detachably connected with righting cylinder 501.
Radical length between the radial outer end and righting cylinder 501 of righting part 502 is adjustable.So set, in centralizer 5
When tripping in oil pipe 9 is hampered, by reducing the spacing between the radial outer end of righting part 502 and the outer wall of righting cylinder 501, with
Centralizer 5 is set to be smoothly through oil pipe 9.
There are many set-up modes adjustable in pitch between the side wall of righting part 502 and the outer wall of righting cylinder 501, in base
Under the premise of being easy setting, preferred following manner:
Elastic component (such as spring, elastic rubber, sponge etc.) is provided in the groove on 501 outer wall of righting cylinder,
The both ends of elastic component offset with the end of righting part 502 and groove walls respectively.When elastic component in the raw when, righting part
The inner wall of 502 radial outer end and oil pipe 9 offsets.When righting part 502 is hampered in oil pipe 9, elastic component is compressed, righting part
Spacing between 502 radial outer end and the outer wall of righting cylinder 501 reduces, in order to which centralizer 5 passes through barrier.
As shown in Fig. 1, device provided in an embodiment of the present invention further include: the fixed pulley 8 at well head is set, for making
Cable 3 bypasses.Fixed pulley 8 is set convenient for 3 length of cable of control tripping in oil pipe 9, avoidable cable 3 is wound in oil pipe 9 to be beaten
Knot.
As shown in Fig. 1, the production tree 10 of connection oil pipe 9, the upper end tube nozzle and blowout prevention of production tree 10 are provided at well head
Pipe 11 connects, and the side of lubricator 11 is arranged in fixed pulley 8.Fixed pin, fixed pulley 8 and fixation are provided on the wall of lubricator 11
Pin connection.
Second aspect, the embodiment of the invention also provides the method for carrying out scraping to oil pipe using above-mentioned apparatus, this method
Include:
By the traction of cable 3 by motor 2, scrape pipe fitting 1, in 5 tripping in oil pipe 9 of multiple centralizers, it is multiple during tripping in
Centralizer 5 makes to scrape pipe fitting 1 and motor 2 is located at the middle part of 9 inner cavity of oil pipe.
Control instrument vehicle 4 runs motor 2, and motor 2, which imparts power to, scrapes pipe fitting 1, scrapes the rotation of pipe fitting 1, with scraping oil
Dirt on 9 inner wall of pipe.
After to scraping, shut down motor 2, by cable 3 by motor 2, scrape pipe fitting 1, multiple centralizers 5 from oil pipe 9
Inside pull out.
The controllability of the above method is good, scraping efficiency is high, pigging effect is good, and can be avoided scrape pipe fitting 1 scrape damage oil pipe 9
Inner wall prevents 9 inner wall eccentric wear of oil pipe.
It will be given below the specific method cleared up using the device oil pipe 9:
On the ground, centralizer 5 is sleeved on the shaft coupling of motor 2, and connect with motor 2, then by shaft coupling with
Scrape the connection of pipe fitting 1.So that cable 3 is sequentially passed through centralizer 5, bumper jar 6, the weighted lever 7 of multiple connections, and adjacent device is connected
It connects.Then it under the traction of measuring truck 4 and cable 3, will scrape under pipe fitting 1, motor 2, multiple centralizers 5, bumper jar 6, weighted lever 7
Enter in oil pipe 9.
During tripping in oil pipe 9, due to the gravity of weighted lever 7, convenient for scraping pipe fitting 1, motor 2, multiple rightings
In device 5, the smooth tripping in oil pipe 9 of bumper jar 6, above-mentioned device is avoided to be suspended in the liquid in oil pipe 9.
The side wall of righting part 502 on centralizer 5 offsets with 9 inner wall of oil pipe so that scrape pipe fitting 1, motor 2, bumper jar 6,
Weighted lever 7 is located at the middle part of 9 inner cavity of oil pipe, avoids scraping 1 deflection of pipe fitting and scrapes damage 9 inner wall of oil pipe.When centralizer 5 encounters barrier
When (such as oil pipe 9 deforms), the elastic component (such as spring) in 501 groove of righting cylinder is set by the end of righting part 502
Compression is squeezed, the spacing between the radial outer end of righting part 502 and the outer wall of righting cylinder 501 reduces, in order to righting part 502
In tripping in oil pipe 9.After righting part 502 breaks the barriers, elastic component restores to the original state, and is expanded outwardly with squeezing righting part 502, into
And spacing between the radial outer end of righting part 502 and the outer wall of righting cylinder 501 increases, until the side wall of righting part 502 with
9 inner wall of oil pipe offsets.
When that will scrape 1 tripping in predetermined depth of pipe fitting, control instrument vehicle 4 starts motor 2, and motor 2 runs and makes shaft coupling
Rotation, the rotation of pipe fitting 1 is scraped in shaft coupling drive, and then is scraped pipe fitting 1 and scraped the dirt of 9 inner wall of oil pipe and chip away.
During scraping 1 tripping in of pipe fitting, when scraping pipe fitting 1 and being hampered (such as oil pipe 9 deform) by card, by upper portable cable 3,
6 jarring of bumper jar simultaneously transfers energy to and scrapes pipe fitting 1, scrapes pipe fitting 1 and vibrates unfreezing.
It can make the different depth of 1 tripping in oil pipe 9 of pipe cleaning part by controlling cable 3, in order to the different location to oil pipe 9
It is cleared up.
Finally, by cable 3 by weighted lever 7, bumper jar 6, multiple centralizers 5, motor 2, scrape pipe fitting 1 and drawn by oil pipe 9
Out, entire scraping is completed.
During above-mentioned scraping oil pipe, motor 2 can be made to be constantly in operating status by measuring truck 4, or make
Motor 2 is in intermittent operating status, is not specifically limited herein.
The foregoing is merely presently preferred embodiments of the present invention, the protection scope being not intended to limit the invention, all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.
Claims (10)
1. one kind scrapes pipe device, which is characterized in that described device includes: to scrape pipe fitting (1), the scraping pipe scale by way of rotation；
The motor (2) being connect with the upper end for scraping pipe fitting (1) by shaft coupling；
Pass through the measuring truck (4) that cable (3) are connect with the motor (2), the measuring truck (4) is for controlling the motor (2)
Operation；
The centralizer (5) for being sleeved on the shaft coupling, and being connect with the motor (2) lower end, and be sleeved on described
On cable (3), and at least one the described centralizer (5) being connect with the motor (2) upper end.
2. the apparatus according to claim 1, which is characterized in that described device further include: bumper jar (6), the bumper jar
(6) it is sleeved on the cable (3), and is connect with the upper end of the centralizer (5).
3. the apparatus of claim 2, which is characterized in that described device further include: weighted lever (7), the weighted lever
(7) it is sleeved on the cable (3), and is connect with the upper end of the bumper jar (6).
4. the apparatus according to claim 1, which is characterized in that described scrape pipe fitting (1) is drill bit.
5. the apparatus according to claim 1, which is characterized in that the pipe fitting (1) of scraping includes: to connect with the shaft coupling
The multiple blades scraping tube body, being arranged on the pipe cleaning body outer wall.
6. the apparatus according to claim 1, which is characterized in that the centralizer (5) includes: righting cylinder (501), along week
To the multiple righting parts (502) being uniformly arranged on righting cylinder (501) outer wall；
The inner wall of the radial outer end and oil pipe (9) of each righting part (502) offsets.
7. device according to claim 6, which is characterized in that the arc-shaped structure of the righting part (502), and the righting
The arc end of part (502) and the inner wall of the oil pipe (9) offset.
8. device according to claim 7, which is characterized in that the radial outer end of the righting part (502) and the righting
Radical length between cylinder (501) is adjustable.
9. the apparatus according to claim 1, which is characterized in that described device further include: the fixed pulley at well head is arranged in
(8), for bypassing the cable (3).
10. the method for carrying out scraping to oil pipe using the described in any item devices of claim 1-9, which is characterized in that the side
Method includes:
It drawn by cable (3) by motor (2), scraped in pipe fitting (1), multiple centralizers (5) tripping in oil pipe (9), in tripping in process
In, multiple centralizers (5) make described to scrape pipe fitting (1) and the motor (2) is located at the middle part of the oil pipe (9) inner cavity；
Control instrument vehicle (4) runs the motor (2), the motor (2) impart power to it is described scrape pipe fitting (1), it is described
Pipe fitting (1) rotation is scraped, with the dirt on oil pipe described in scraping (9) inner wall；
After to scraping, shut down the motor (2), by the cable (3) by the motor (2), described scrape pipe fitting
(1), multiple centralizers (5) pull out out of the oil pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710355685.5A CN108952632A (en) | 2017-05-19 | 2017-05-19 | Pipe scraping device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710355685.5A CN108952632A (en) | 2017-05-19 | 2017-05-19 | Pipe scraping device and method |
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| Publication Number | Publication Date |
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| CN108952632A true CN108952632A (en) | 2018-12-07 |
Family
ID=64462050
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710355685.5A Pending CN108952632A (en) | 2017-05-19 | 2017-05-19 | Pipe scraping device and method |
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| CN (1) | CN108952632A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725654A (en) * | 2019-11-30 | 2020-01-24 | 孙庆云 | Combined type sucker rod centralizer |
| CN111622728A (en) * | 2020-05-26 | 2020-09-04 | 中石化江汉石油工程有限公司测录井公司 | Horizontal well perforation process for connecting perforation of cable tractor with hydraulic conveying perforation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725654A (en) * | 2019-11-30 | 2020-01-24 | 孙庆云 | Combined type sucker rod centralizer |
| CN110725654B (en) * | 2019-11-30 | 2021-02-05 | 徐章翊 | Combined type sucker rod centralizer |
| CN111622728A (en) * | 2020-05-26 | 2020-09-04 | 中石化江汉石油工程有限公司测录井公司 | Horizontal well perforation process for connecting perforation of cable tractor with hydraulic conveying perforation |
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Application publication date: 20181207 |
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