CN108716383A - Wax scraper for well head sucker rod - Google Patents
Wax scraper for well head sucker rod Download PDFInfo
- Publication number
- CN108716383A CN108716383A CN201810477583.5A CN201810477583A CN108716383A CN 108716383 A CN108716383 A CN 108716383A CN 201810477583 A CN201810477583 A CN 201810477583A CN 108716383 A CN108716383 A CN 108716383A
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- paraffin scraper
- positioning disk
- paraffin
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012188 paraffin wax Substances 0.000 claims abstract description 106
- 239000001993 wax Substances 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000007790 scraping Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 5
- 210000004907 gland Anatomy 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 20
- 238000005086 pumping Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 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
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)
- Earth Drilling (AREA)
- Lubricants (AREA)
Abstract
The invention relates to a wax scraper of a wellhead sucker rod. The problem that the wax on the surface of the sucker rod is not scraped cleanly and wastes time and energy in the existing sucker rod wax removal mode is mainly solved. The method is characterized in that: the upper hinge seat of the positioning disc is connected with the lower end of the roller carrier through a long shaft pin; the upper end of the roller frame is connected with the wax scraping sheet through a wax scraping sheet pin; the inner side of the middle upper part of each roller frame is connected with a roller through a short shaft pin; the base consists of a fixed mechanism and a movable mechanism; the paraffin scraping sheet guide disc is circumferentially provided with uniformly distributed open grooves, each groove is internally provided with a paraffin scraping sheet, and each paraffin scraping sheet is fixedly connected with a fixed spring seat through a bolt; a spring is arranged between the fixed spring seat and the spring gland at one side end; the spring gland is internally connected with a spring adjusting seat through a spring adjusting bolt. This well head sucker rod paraffin scraper can scrape the comparatively firm wax oil in sucker rod surface automatically, and is safe laborsaving.
Description
Technical field
The present invention relates to oil field development technical field, more particularly to a kind of well head sucker rod paraffin scraper.
Background technology
When oil well repairing operation plays sucker rod both at home and abroad at present, the following two methods of generally use carry out sucker rod clear
Wax, first, be wrapped on sucker rod using steel wire or belt and carry out paraffin cutting, oil pumping rod centering device can not by the belt of winding or
Steel wire, the oily wax on sucker rod scrape it is unclean, it is not only laborious but also dangerous；Second is that in paraffin scraper of the well head installation with rubber fuse
Paraffin cutting is carried out, after larger-diameter rod collar or centralizer pass through, rubber fuse cannot be restored original by severe crush
Elasticity, can not continue to hold sucker rod tightly carrying out paraffin cutting, so that the oily wax on sucker rod is scraped unclean.Both the above method can not incite somebody to action
The oily wax on sucker rod surface is scraped totally, is needed to re-start wax removal with boiler car steam, is consumed a large amount of oil plant, is produced a large amount of
Sump oil sewage, be added significantly to the workload of employee.
Invention content
The technical problem to be solved is that overcome existing sucker rod wax removal mode present in background technology for patent of the present invention
The oily wax on sucker rod surface scrapes unclean and time-consuming and laborious problem, and provides a kind of well head sucker rod paraffin scraper, the well head
Rod scraper can scrape off the more firm oily wax in sucker rod surface automatically when workover treatment plays sucker rod, and safety saves
Power.
Patent of the present invention solves the problems, such as that it can reach by following technical solution：The well head sucker rod paraffin scraper, including
Pedestal, paraffin scraper positioning disk, positioning disk；The positioning disk top connects 3 free bearings, and positioning disk top free bearing passes through long axis
The lower end of pin connection turning rolls；The upper end of turning rolls connects paraffin scraper by paraffin scraper pin；On the inside of each turning rolls middle and upper part
Pass through short axle pin connection idler wheel；The pedestal is made of fixed mechanism and movable device two parts；On the paraffin scraper positioning disk
Portion is fixedly connected with annular by three hexagon socket head cap screws and is oriented to plate mat；Paraffin scraper positioning disk is circumferentially provided with equally distributed 3 and opens
Port recess, each groove is built-in there are one paraffin scraper, and each paraffin scraper is bolted to connection fixed spring seat；Fixed spring
It is equipped with spring between seat and a side spring capping；Pass through spring adjustment screw connecting spring adjustment seat in spring capping；Paraffin scraper
It is linked together by several studs between positioning disk and positioning disk；The pedestal, paraffin scraper positioning disk, positioning disk center
All it is provided with centre bore.
The well head sucker rod paraffin scraper operation principle is：When above carrying sucker rod, the connector and well that are connected by base portion
Mouthful production tree is connected, can be with sucker rod together with wherein control section, paraffin cutting part are bolted with holder part
It arbitrarily rotates or swings in the horizontal direction of pedestal, ensure that paraffin scraper holds sucker rod tightly always, with the promotion of sucker rod, paraffin cutting
Piece wipes the oily wax on sucker rod off, when encountering rod collar and centralizer, continues upper shadoof column, allow box cupling and centralizer along
Turning rolls uplink makes paraffin scraper be displaced outwardly, it is made to pass through by the effect of turning rolls upper roller, when rod collar is suitable
After profit passes through, paraffin scraper resets rapidly under the action of the spring, continues to hold sucker rod progress paraffin cutting tightly, the oily wax scraped is along branch
Gap outflow between frame stud.
The present invention can have the advantages that compared with above-mentioned background technology：The well head sucker rod paraffin scraper can make
Oil pumping rod centering device passes through；Paraffin scraper can hold sucker rod and its table oil wax scraping is clean tightly always；Winter scrape compared with
Thick and harder oily wax can smoothly flow out in gap between holder, and the oily wax scraped flows into the collecting box below well-mouth operating floor
Interior concentration is handled, and the paraffin cutting effect and paraffin cutting efficiency of sucker rod are greatly improved.It is laborsaving, time saving, safe operation, conveniently.It is logical
It crosses holder part paraffin cutting part and base portion link together, the weight of full well sucker rod can be born；The double end of holder
Gap between bolt is larger, and the thicker oily wax that winter scrapes can be made smoothly to flow out, ensure being smoothed out for workover treatment.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the present invention；
Attached drawing 2 be attached drawing 1 along A-A to sectional view；
Attached drawing 3 is the vertical view of the present invention；
Attached drawing 4 is the structural schematic diagram of control section of the present invention.
In figure：1- pedestals, 2- long pivot pins, 3- turning rolls, 4, stud, 5- idler wheels, 6- stub axle pins,
7- straight pins, 8- loose joint bolts, 9- paraffin scraper positioning disks, 10- paraffin scrapers, 11- paraffin scraper pins, 12,16,
29- nuts, 13- fixed spring seats, 14- springs, 15- spring adjustment seats, 17- bolts, 18- spring adjustment screws,
19- spring cappings, 20- are oriented to plate mat；21- hexagon socket head cap screws, 22- positioning disks, 23- connector sleeves, 24- limits
Disk, 25- lower walls, 26- firm bankings, 27- free bearings, 28- bolt of lower base, 30- connectors.
Specific implementation mode：
The invention will be further described below in conjunction with the accompanying drawings：
As shown in attached drawing 1, Fig. 2, Fig. 3, Fig. 4, the well head sucker rod paraffin scraper, including pedestal 1, paraffin scraper positioning disk 9, positioning disk
22；22 top of the positioning disk connects 3 free bearings 27, and 22 top free bearing 27 of the positioning disk connects turning rolls by long pivot pin 2
3 lower end；The upper end of turning rolls 3 connects paraffin scraper 10 by paraffin scraper pin 11, and the paraffin scraper is flat paraffin scraper；Often
Idler wheel 5 is connected by stub axle pin 6 on the inside of 3 middle and upper part of a turning rolls；The pedestal 1 is by fixed mechanism and movable device two parts group
At；Fixed mechanism is made of position-arresting disk 24 and firm banking 26, and the firm banking 26 of position-arresting disk 24 and lower part is bolted
Together；Movable device is from top to bottom welded together by positioning disk 22, connector sleeve 23 and lower wall 25 to be formed, and movable device passes through
Space between its lower wall 25 and the firm banking 26 and position-arresting disk 24 of fixed mechanism is connected, 26 lower part jointing of firm banking
30, connector 30 connects production tree or tubing hanger；9 top of paraffin scraper positioning disk is fixedly connected with ring by three hexagon socket head cap screws
Shape is oriented to plate mat 20；Paraffin scraper positioning disk 9 is circumferential to be provided with equally distributed 3 open recess, and each groove is built-in, and there are one scrape
Wax disk(-sc) 10, each paraffin scraper 10 are fixedly connected with fixed spring seat 13 by bolt 17；Fixed spring seat 13 and a side spring pressure
It is equipped with spring 14 between lid 19, holds the elasticity of oil pumping bar body tightly for adjusting paraffin scraper；Pass through spring tune in spring capping 19
18 connecting spring adjustment seat 15 of bolt is saved, 19 both sides of spring capping connect 8 one end of loose joint bolt by straight pin 7；Loose joint bolt 8
The other end is by screwed connection on paraffin scraper positioning disk；Pass through 6 studs 4 between paraffin scraper positioning disk 9 and positioning disk 22
It links together；The pedestal 1, paraffin scraper positioning disk 9,22 center of positioning disk are all provided with centre bore.
The well head sucker rod paraffin scraper, control section are mainly made of detent mechanism and guiding mechanism.Detent mechanism includes
Positioning disk 22 and free bearing 27；Guiding mechanism includes the compositions such as turning rolls 3, turning rolls axis, idler wheel 5 and roller shaft.Wherein positioning disk
Determine that the relative position of each turning rolls, guiding mechanism ensure that centralizer passes through well head sucker rod paraffin scraper.
Paraffin cutting part is mainly made of paraffin scraping mechanism and clamp system.Paraffin scraping mechanism is by paraffin scraper 10, paraffin scraper positioning disk
9, the compositions such as plate mat 20 are oriented to；Clamp system is mainly by spring 14, spring base 13, spring capping 19, spring adjustment screw 18, bullet
The compositions such as spring adjustment seat 15, loose joint bolt 8 and pin.Paraffin scraper is designed to flat, and positioning disk is responsible for paraffin scraper and is moved forward and backward
The control of track and axial limiting, clamp system make to clamp sucker rod always, ensure the steady stress of paraffin scraper, hold sucker rod tightly,
And ensure that sucker rod is located at well head sucker rod paraffin scraper center, make the more thorough of the oily wax scraping on sucker rod, it is logical to be oriented to plate mat
Three hexagon socket head cap screws are crossed to be fixed together with positioning disk.Same diameter（Φ25,Φ22,Φ19）Sucker rod need it is flat
Paraffin scraper thickness is 10mm, and positioning disk integral thickness is made to be reduced to 38mm, makes well head sucker rod paraffin scraper whole height is opposite to drop
It is low, facilitate well head personnel to operate, and positioning disk straight trough is easily worked, the turning rolls that paraffin scraper passes through stub axle pin and control section
It links together, and is moved forward and backward in positioning disk lower recess under the action of the spring.
The guiding mechanism that 3,22 top of positioning disk free bearing 27 connects the three-clove style that turning rolls 3 is constituted can make the sucker rod moment
It keeps placed in the middle, and ensures that centralizer passes through well head sucker rod paraffin scraper.
Separating stent-graft includes mainly six studs, is distributed between positioning disk and positioning disk.Holder each section is logical
It crosses screw thread to link together, effect is to support the weight of full well sucker rod, and the oily wax scraped is along open flow-guiding mouth and bolt
Gap between turning rolls flow to the sump oil water recycling bins below well-mouth operating floor.Separating stent-graft is using built in screw portion
The Stability Design of positioning disk disclosure satisfy that the bearing requirements of full well sucker rod 4t-5t weight, six open outlets, guide face
Product is big, ensures that winter oil wax smoothly flows out, meets site operation needs.
The well head sucker rod paraffin scraper course of work is：
Well head sucker rod paraffin scraper is connected to by connector 30 on production tree, and sucker rod sequentially passes through connector 30, well from bottom to up
The firm banking 26 of mouth rod scraper, connector sleeve 23, position-arresting disk 24, positioning disk 22, turning rolls 3, idler wheel 5, is scraped lower wall 25
Wax disk(-sc) 10, paraffin scraper positioning disk 9, pad 20 on paraffin scraper positioning disk；According to the hardness of sucker rod oil wax, adjustment spring adjusts spiral shell
Bolt makes spring 14 be in a rational elastic force range；Working rig hook drives rod elevator, rod elevator to drive oil pumping
When bar uplink, hook alternating load makes sucker rod all around be shaken in the oil pipe of well head, and sucker rod drives lower wall 25 limiting
It is all around shaken in the range of the disk 24 of position, lower wall 25 drives all components of connector sleeve 23, positioning disk 22 and upper part with pumping
Beam hanger all around shakes, and ensures that sucker rod always in the center of rod scraper, ensures the paraffin cutting effect of sucker rod；
At this time by the elastic force of the spring of compression 14 make paraffin scraper 10 always hold tightly oil pumping bar body, when uplink rod collar or help
Positive device close to turning rolls 3 idler wheel 5 when, pushing rolling wheels 5 drive turning rolls 3 to outward transport when rod collar or centralizer uplink
Dynamic, turning rolls drives groove slideway of the paraffin scraper being mounted on turning rolls along paraffin scraper positioning disk lower part to move out, paraffin cutting
Piece compressed spring 14 vacates the space of rod collar or centralizer uplink, so that rod collar or centralizer is passed through and scrapes
Wax disk(-sc), after rod collar or centralizer are by paraffin scraper, spring 14 continues to hold tightly by 10 return of resiliency urged paraffin scraper
Sucker rod, 3 paraffin scrapers（Paraffin scraper has Ф 25, Ф 22,19 three types of Ф, can be according to sucker rod body diameter Ф 25, Ф
22, Ф 19 is selected）Close up that internal diameter is consistent with sucker rod body diameter, to smoothly scrape the oily wax on sucker rod, scrapes
Under oily wax between two adjacent studs 4, between stud 4 and turning rolls 3 gap outflow, flow under well head
In the accumulator tank in face, uniformly carried out at recycling by waste-oil waste-water recovery equipment --- wherein, stud bears full well oil pumping
The weight and shock loading of bar, fixed spring seat 13, spring 14, spring adjustment seat 5, bolt 17, spring adjustment screw 18, bullet
Spring gland 19 is used for fixed spring together.
Such tubing coupling passes through the control method of wax scraping apparatus in addition to that can apply in oil-pipe external wall frizing, scrape
Wax；It can be applied in drilling-rod external wall frizing, paraffin cutting, scrape mud and sleeve outer wall frizing, paraffin cutting, to scrape mud etc. a series of outer
Wall frizing, paraffin cutting, the design for scraping the devices such as mud, ensure oil pipe, drilling rod, the box cuplings such as casing pass through outer wall frizing, paraffin cutting,
Scrape the devices such as mud.
Oblique 8 wells of Daqing oil field virtue 130-, in oil pipe wax scraping apparatus application process, tubing coupling passes through paraffin cutting dress
It sets, while the oily wax scraping of oil-pipe external wall is clean, paraffin cutting first-time qualification rate 100%.
In oblique 8 wells of fragrant 130-, oil pipe wax scraping apparatus is mounted on wellhead flange first, oil pipe is poured into wax scraping apparatus
After interior, in working rig hook promotes former well Tubing During Running, tubing coupling is suitable by the guiding of oil pipe wax scraping apparatus guiding mechanism
Sharply by oil pipe wax scraping apparatus, while using the movable device of pedestal, realizing paraffin scraper and holding oil pipe tightly always and to oil pipe
Outer wall carries out paraffin cutting, and the oily wax thickness on oil pipe surface is respectively less than 2mm after paraffin cutting, has reached the standard of going into the well, and realizes safety, saves
Power, the effect of environmental protection.
Claims (9)
1. a kind of well head sucker rod paraffin scraper, including pedestal（1）, paraffin scraper positioning disk（9）, positioning disk（22）；The positioning disk
（22）Top connects 3 free bearings（27）, it is characterised in that：The positioning disk（22）Top free bearing（27）Pass through long pivot pin（2）Even
Connect turning rolls（3）Lower end；Turning rolls（3）Upper end pass through paraffin scraper pin（11）Connect paraffin scraper（10）；Each turning rolls
（3）Pass through stub axle pin on the inside of middle and upper part（6）Connect idler wheel（5）；The pedestal（1）By fixed mechanism and movable device two parts group
At；Paraffin scraper positioning disk（9）Equally distributed 3 open recess are circumferentially provided with, each groove is built-in, and there are one paraffin scrapers（10）,
Each paraffin scraper（10）Pass through bolt（17）It is fixedly connected with fixed spring seat（13）；Fixed spring seat（13）With a side spring pressure
Lid（19）Between be equipped with spring（14）；Spring capping（19）Inside pass through spring adjustment screw（18）Connecting spring adjustment seat（15）；It scrapes
Wax disk(-sc) positioning disk（9）With positioning disk（22）Between pass through several studs（4）It links together；The pedestal（1）, paraffin scraper
Positioning disk（9）, positioning disk（22）Center is all provided with centre bore.
2. well head sucker rod paraffin scraper according to claim 1, it is characterised in that：The fixed mechanism is by position-arresting disk（24）
And firm banking（26）Composition, position-arresting disk（24）With the firm banking of lower part（26）It is bolted together；Movable device
By positioning disk（22）, connector sleeve（23）And lower wall（25）From top to bottom weld together composition, movable device passes through its lower wall
（25）With the firm banking of fixed mechanism（26）And position-arresting disk（24）Between space be connected.
3. well head sucker rod paraffin scraper according to claim 2, it is characterised in that：The firm banking（26）Lower part connects
Connector（30）, connector（30）Connect production tree or tubing hanger.
4. well head sucker rod paraffin scraper according to claim 1, it is characterised in that：The paraffin scraper（10）It is scraped to be flat
Wax disk(-sc).
5. well head sucker rod paraffin scraper according to claim 1, it is characterised in that：The spring capping（19）Both sides pass through
Straight pin（7）Connect loose joint bolt（8）One end；Loose joint bolt（8）The other end is by screwed connection on paraffin scraper positioning disk.
6. well head sucker rod paraffin scraper according to claim 1, it is characterised in that：The paraffin scraper positioning disk（9）Top
It is fixedly connected with annular by three hexagon socket head cap screws and is oriented to plate mat（20）.
7. well head sucker rod paraffin scraper according to claim 1, it is characterised in that：The stud（4）It is 6.
8. well head sucker rod paraffin scraper according to claim 1, it is characterised in that：The idler wheel（5）It is 3.
9. well head sucker rod paraffin scraper according to claim 1, it is characterised in that：The paraffin scraper（10）It is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477583.5A CN108716383B (en) | 2018-05-18 | 2018-05-18 | Wax scraper for well head sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810477583.5A CN108716383B (en) | 2018-05-18 | 2018-05-18 | Wax scraper for well head sucker rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108716383A true CN108716383A (en) | 2018-10-30 |
| CN108716383B CN108716383B (en) | 2021-06-11 |
Family
ID=63899889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810477583.5A Active CN108716383B (en) | 2018-05-18 | 2018-05-18 | Wax scraper for well head sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716383B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2558761Y (en) * | 2002-07-12 | 2003-07-02 | 长庆石油勘探局第二采油技术服务处 | Eccentric self-adjusting wellhead pumping rod wax scraper |
| CN2906050Y (en) * | 2006-03-03 | 2007-05-30 | 长庆石油勘探局 | Self-adjusting type paraffin scraper for wellhead sucker rod |
| CN101280675A (en) * | 2008-05-28 | 2008-10-08 | 大庆石油管理局 | Pumping rod wax scraping apparatus |
| CN204941460U (en) * | 2015-09-25 | 2016-01-06 | 王克新 | Roller type rod tube paraffin cleaner |
-
2018
- 2018-05-18 CN CN201810477583.5A patent/CN108716383B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2558761Y (en) * | 2002-07-12 | 2003-07-02 | 长庆石油勘探局第二采油技术服务处 | Eccentric self-adjusting wellhead pumping rod wax scraper |
| CN2906050Y (en) * | 2006-03-03 | 2007-05-30 | 长庆石油勘探局 | Self-adjusting type paraffin scraper for wellhead sucker rod |
| CN101280675A (en) * | 2008-05-28 | 2008-10-08 | 大庆石油管理局 | Pumping rod wax scraping apparatus |
| CN204941460U (en) * | 2015-09-25 | 2016-01-06 | 王克新 | Roller type rod tube paraffin cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108716383B (en) | 2021-06-11 |
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