CN106522884A - Vibro-rammed oil tube descaling device - Google Patents
Vibro-rammed oil tube descaling device Download PDFInfo
- Publication number
- CN106522884A CN106522884A CN201611203631.9A CN201611203631A CN106522884A CN 106522884 A CN106522884 A CN 106522884A CN 201611203631 A CN201611203631 A CN 201611203631A CN 106522884 A CN106522884 A CN 106522884A
- Authority
- CN
- China
- Prior art keywords
- engaged
- core bar
- main body
- claw
- sleeved
- 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
- 210000000078 claw Anatomy 0.000 claims description 36
- 238000012856 packing Methods 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000283986 Lepus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum 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
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)
- Joints Allowing Movement (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to a vibro-rammed oil tube descaling device. The device comprises an upper connector (1), a main body (2) and a rubber tube core (3), and further comprises a braking core rod (8), a vibro-rammed sleeve (10), a connection core rod (11), a connection sleeve (13), a guide sleeve (14) and a rotary connector (15). The braking core rod (8) is arranged in the main body (2) in a sleeved mode, the upper portion of the vibro-rammed sleeve (10) is axially arranged on the outer side of the lower portion of the main body (2) in sliding and sleeving modes, the upper end of the connection core rod (11) is axially connected with the lower end of the connection sleeve (13), the lower end of the rotary connecter (15) is axially connected with the upper end of the rubber tube core (3), and the upper end of the rotary connecter (15) is arranged in the guide sleeve (14) in a sleeved mode. The well unblocking effect is good, all kinds of dirt in an oil tube can be removed, and oil field production can be smoothly conducted. A special vibro-rammed descaling mode is adopted, and the problem that a harder scaling layer in the oil tube is difficult to remove is well solved.
Description
Technical field
The present invention relates to petroleum tool, and in particular to a kind of oilfield oil well oil pipe stain eliminating operation oil pipe stain eliminating device.
Background technology
After oilfield and well longtime running, pipe inner surface can have substantial amounts of greasy dirt, incrustation scale and other fouls,
So that pipe aperture reduces, cause to test, salvage and other instruments cannot by and cannot normal work.Oil field is commonly used at present
Defeated oil pipe mode be that drifting is carried out by gravity using the drift size gauge tool of certain diameter, but drift size gauge tool is limited by weight, place
During oil pipe of the reason with harder layer of scale, jack rabbit cannot often be removed it, and cause drifting to fail.When there is such case,
Being smoothed out for oil field normal operation can be had a strong impact on.
The content of the invention
It is an object of the invention to provide a kind of drifting effect is good, the various dirts in oil pipe can be removed, is conducive to oil field
The shocking type oil pipe stain eliminating device being smoothed out of operation.
The present invention technical solution be：It includes top connection, main body, packing element core, packing element assembly, connector, scale removal
Body and guide head, the lower end of top connection are connected with the top axial of main body by screw thread, and de- cylinder assembly is sleeved on packing element core, glue
The lower end of tube filler is connected with the top axial of connector by screw thread, and the upper end of scale removal body is by screw thread and the lower end axle of connector
It is connected with the top axial of guide head to connected, lower end by screw thread, it also includes braking core bar, stage clip one, vibration set, connection
Core bar, stage clip two, adapter sleeve, guide pin bushing and swivel joint, braking core bar are sleeved in main body, top connection lower surface lower position
Braking core bar outer wall is provided with the outward flange that upper surface is engaged with top connection lower surface, and stage clip one is located at the lower square set of outward flange
Be mounted on braking core bar and in the main body, the upper end of stage clip one is engaged with the lower surface of outward flange, lower end and main body it is interior
End face is engaged, and vibration set top slides axially and is sleeved on the outside of main body lower semisection, and the bottom of main body is radially provided with installation
Vibration block in main body, the side wall of vibration set and main body axial sliding fit position is provided with to slide with the two ends of vibration block matches somebody with somebody
The axial slide of conjunction, the bottom for braking core bar are provided with the other end towards the claw of braking core bar upper end by hinge,
Core bar is engaged, the other end is engaged claw upper end with claw with braking to be provided with one end between the upper end of claw and braking core bar
The stage clip three ejected to outside braking core bar, claw upper end are provided with towards the side outside braking core bar and are slided with vibration set axial slide
Match and merge the claw head being engaged with the upper end of axial slide, the position being engaged with claw in main body wall is provided with claw
Groove, the claw trough side part of claw head lower position is provided with to be engaged with claw can make guiding of the claw gathering in main body oblique
Face, connect lower end that the upper end of core bar cover by screw thread and vibration it is axial be connected, lower end slides axially and is sleeved in adapter sleeve, press
Spring two is sleeved on connection core bar, the lower surface that upper end is covered with vibration is engaged, lower end is engaged with the upper surface of adapter sleeve, even
Be provided with anti-rotation groove in the middle part of female connector, connection be arranged with the position of anti-rotation groove be provided with by upper bracket one, upper bracket two, anti-runner one,
The anti-rotation wheel assembly that anti-runner two, lower carriage one and lower carriage two are constituted, upper bracket one and two upper end of upper bracket respectively with even
The bottom for connecing core bar is hinged, and the bottom of lower carriage one and lower carriage two is respectively hinged on adapter sleeve, upper bracket one
The upper end of lower end and lower carriage one is hinged and anti-runner one is rotatably installed in upper bracket one with being hinged that lower carriage one is hinged
On axle, the lower end of upper bracket two is hinged with the upper end of lower carriage two and anti-runner two is rotatably installed in upper bracket two and lower carriage
On two jointed shafts being hinged, the upper end of guide pin bushing is axially connected with the lower end of adapter sleeve by screw thread, and the lower end of swivel joint leads to
The top axial that screw thread is crossed with packing element core is connected, and the top axial of swivel joint slides and is sleeved in guide pin bushing, swivel joint it is upper
End radially installed has the sliding pin that both ends are projected into outside swivel joint respectively, and guide pin bushing is provided with the position that swivel joint is slidably matched
The spiral type chute being slidably matched with sliding pin, be axially arranged with guide pin bushing upper end be engaged with the inner face of guide pin bushing, lower end and rotation
The stage clip four that the upper surface of joint is engaged.
The solution have the advantages that：Its drifting effect is good, can remove the various dirts in oil pipe, be conducive to oil field to make
Industry is smoothed out.It forces the special jarring scale removal mode of mechanical impact composition of forcing to make peace using spiral scale removal reamer hydrous water,
The difficult problem that the harder layer of scale of oil pipe does not allow easy to clean is preferably resolved, being smoothed out for drifting operation is effectively guaranteed,
It is also beneficial to the smooth development of other operations after drifting.It is simple to operate, easy to use, and dirt removal effect is good, can make to remove
Pipe inner surface after dirt is smooth, and convenient test, salvaging and other instruments are passed through.
Description of the drawings
Fig. 1 is embodiment of the present invention sectional view.
Specific embodiment
As shown in figure 1, it includes top connection 1, main body 2, packing element core 3, packing element assembly 4, connector 5, scale removal body 6 and is oriented to
7, the lower end of top connection 1 is connected with the top axial of main body 2 by screw thread, and de- cylinder assembly 4 is sleeved on packing element core 3, packing element
The lower end of core 3 is connected with the top axial of connector 5 by screw thread, and the upper end of scale removal body 6 is by screw thread and the lower end of connector 5
Axially it is connected, lower end is connected with the top axial of guide head 7 by screw thread, it also includes braking core bar 8, stage clip 1, vibration set
10th, core bar 11, stage clip 2 12, adapter sleeve 13, guide pin bushing 14 and swivel joint 15 are connected, braking core bar 8 is sleeved in main body 2, on
Braking 8 outer wall of core bar of 1 lower surface lower position of joint is provided with the outward flange that upper surface is engaged with 1 lower surface of top connection
81, stage clip 1 is located at the lower section of outward flange 81 and is sleeved on braking core bar 8 and in the main body 2, the upper end of stage clip 1 with it is outer
The lower surface of flange 81 is engaged, lower end is engaged with the inner face of main body 2, and vibration covers the slip of 10 upper axials and is sleeved on main body
The outside of 2 lower semisections, the bottom of main body 2 are radially provided with the vibration block 21 installed on the body 2, vibration set 10 and 2 axle of main body
The axial slide 101 being slidably matched with the two ends of vibration block 21 is provided with to the side wall of the position that is slidably matched, under braking core bar 8
End is provided with the other end towards the claw 82 of 8 upper end of braking core bar, upper end and the braking core bar 8 of claw 82 by hinge
Between be provided with one end with braking core bar 8 be engaged, the other end be engaged with claw 82 by 82 upper end of claw to braking 8 outer bullet of core bar
The stage clip 3 83 for going out, 82 upper end of claw are provided with to be slided with vibration set 10 axial slide 101 towards the side outside braking core bar 8 and are matched
The claw head 84 that merging is engaged with the upper end of axial slide 101, the position being engaged with claw 82 on 2 side wall of main body is provided with
Claw groove 22,22 edge of claw groove of 84 lower position of claw head is provided with can make claw 82 draw master in
Guiding surface 23 in body 2, connect core bar 11 upper end pass through screw thread and vibration set 10 lower end be axially connected, lower end is axially slided
It is dynamic to be sleeved in adapter sleeve 13, stage clip 2 12 is sleeved on connection core bar 11, upper end is engaged with the lower surface of vibration set 10, under
End is engaged with the upper surface of adapter sleeve 13, and the middle part of adapter sleeve 13 is provided with anti-rotation groove 131, and adapter sleeve 13 is provided with anti-rotation groove 131
Position be provided with by upper bracket 1, upper bracket 2 162, anti-runner 1, anti-runner 2 164, lower carriage 1 and lower
The anti-rotation wheel assembly 16 that frame 2 166 is constituted, upper bracket 1 and 2 165 upper end of upper bracket respectively be connected under core bar 11
End is hinged, and the bottom of lower carriage 1 and lower carriage 2 166 is respectively hinged on adapter sleeve 13, upper bracket 1
The upper end of lower end and lower carriage 1 is hinged and anti-runner 1 is rotatably installed in upper bracket 1 and lower carriage 1
On the jointed shaft being hinged, the lower end of upper bracket 2 162 is hinged with the upper end of lower carriage 2 166 and anti-runner 2 164 is rotated
On the jointed shaft that upper bracket 2 162 and lower carriage 2 166 are hinged, the upper end of guide pin bushing 14 is by screw thread and adapter sleeve 13
Lower end be axially connected, the lower end of swivel joint 15 is connected with the top axial of packing element core 3 by screw thread, swivel joint 15 it is upper
End slides axially and is sleeved in guide pin bushing 14, and the upper end radially installed of swivel joint 15 has both ends to be projected into swivel joint 15 respectively
Outer sliding pin 151, guide pin bushing 14 are provided with the spiral type chute being slidably matched with sliding pin 151 with the position that swivel joint 15 is slidably matched
141, it is axially arranged with guide pin bushing 14 that upper end is engaged with the inner face of guide pin bushing 14, lower end is engaged with the upper surface of swivel joint 15
Stage clip 4 17.
8 upper end of braking core bar above braking 8 outward flange 81 of core bar slides axially and is sleeved in the lower mouth of top connection 1.
The upper end of 3 centre bore of packing element core is connected by the centre bore and radial hole on swivel joint 15 is outer with swivel joint 15
Logical, lower end is connected with outside connector 5 by the centre bore and radial hole on connector 5, the centre bore of connector 5 it is interior on to
Steel ball 51 and stage clip 5 52 is had, steel ball 51 is engaged with the lower mouth of 3 centre bore of packing element core, the upper end of stage clip 5 52 and steel ball
51 are engaged, lower end is engaged with the inner face of 5 centre bore of connector.
The outer wall of scale removal body 6 is provided with some helical cutting edges 61.Divide on each helical cutting edge 61 of scale removal body 6
Several hard material cutting blades 62 are not provided with.
Packing element assembly 4 is by the upper packing element 41, dottle pin 42 and 43 structure of lower rubber cylinder being sleeved on successively on packing element core 3 from the top down
Into.
Guide pin bushing 14 is provided with below adapter sleeve 13 to be sleeved on guide pin bushing 14 and be provided with spiral shell applies the sheath outside 141 position of chute
142, the upper surface of sheath 142 is engaged with the lower surface of adapter sleeve 13, outside the guide pin bushing on 14 lower end outer wall of lower surface and guide pin bushing
The upper surface of flange 143 is engaged.
Vibration set 10 passes through screw thread and guide pin bushing 14 by screw thread with the 11 axial positions being connected of core bar, adapter sleeve 13 are connected
Position that the position that is axially connected, swivel joint 15 are axially connected with packing element core 3 by screw thread, packing element core 3 are by screw thread
It is respectively equipped with by the position that screw thread and scale removal body 6 are axially connected with the 5 axial position being connected of connector, connector 5 logical
Cross the steady nail 18 that the end being threadably mounted on interior threaded part is engaged with externally threaded item.
Operation principle：Top connection 1 is connected by the steel wire rope of winch wire on well this descaler is put into into down-hole arrival knot
Can be stuck above dirty oil pipe and cannot pass through, by putting on joint 1 on steel wire rope, drive whole descaler to rise, 1 band of top connection
Dynamic main body 2 rise claw 82 can be taken in main body 2,2 compression press spring of main body 1 drive braking core bar 8 vibration set 10 in
Upper slip is blocked by 101 top of axial slide on vibration set 10 until vibration block 21.Meanwhile, vibration set 10 will connection core bar 11
Moving uppermost position to makes in two anti-runner income adapter sleeves 13, and guide pin bushing 14 rises to most to be gone up with what swivel joint 15 was engaged
Put in orientation.Top connection 1 is discharged by steel wire rope during scale removal, scale removal is fallen under descaler under water flow pressure and action of gravity on the well
Body 6 is blocked by the dirt in oil pipe, with 2 downward resilience of main body under action of gravity under the elastic force effect of stage clip 1.In main body 2
Vibration block 21 strike 101 lower end of axial slide on vibration set 10, vibration set 10 drives connection core bars 11 to glide, makes each anti-
Runner is opened to be stuck on tube inner wall from adapter sleeve 13 prevents adapter sleeve 13 from oil pipe rotating but can slide axially.Guide pin bushing
14 will not be rotated in oil pipe by each anti-runner control when gliding, spiral chute 141 thereon can be rotated by sliding pin 151
Joint 15 is rotated, then drives scale removal body 6 and guide head 7 to rotate by packing element core 3 and connector 5, so as to by tube inner wall
Dirt is scraped away.Current are flow through, oppress steel ball from the centre bore of packing element core 3 by the radial hole and centre bore on swivel joint 15
51 and stage clip 5 52 flow out from the centre bore of connector 5 and radial hole, oil pipe will be flushed to by the fouling that scale removal body 6 is scraped away downwards
Lower section.Steel ball 51 and stage clip 5 52 on connector 5 also has non-return effect, as packing element assembly 4 is expanded by well upward pressure, can
Gushed on the centre bore of high pass packing element core 3 with preventing down-hole pressure from crossing.
Claims (7)
1. shocking type oil pipe stain eliminating device, it includes top connection（1）, main body（2）, packing element core（3）, packing element assembly（4）, connector
（5）, scale removal body（6）And guide head（7）, top connection（1）Lower end pass through screw thread and main body（2）Top axial be connected, take off cylinder
Assembly（4）It is sleeved on packing element core（3）On, packing element core（3）Lower end pass through screw thread and connector（5）Top axial be connected, remove
Dirty body（6）Upper end pass through screw thread and connector（5）Lower end be axially connected, lower end passes through screw thread and guide head（7）Upper end
Axially it is connected, it is characterised in that：It also includes braking core bar（8）, stage clip one（9）, vibration set（10）, connection core bar（11）, pressure
Spring two（12）, adapter sleeve（13）, guide pin bushing（14）And swivel joint（15）, brake core bar（8）It is sleeved on main body（2）It is interior, top connection
（1）The braking core bar of lower surface lower position（8）Outer wall is provided with upper surface and top connection（1）The outward flange that lower surface is engaged
（81）, stage clip（9）Positioned at outward flange（81）Lower section be sleeved on braking core bar（8）Go up and be located at main body（2）It is interior, stage clip one
（9）Upper end and outward flange（81）Lower surface be engaged, lower end and main body（2）Inner face be engaged, vibration set（10）On
Portion slides axially and is sleeved on main body（2）The outside of lower semisection, main body（2）Bottom be radially provided with installed in main body（2）On
Vibration block（21）, vibration set（10）With main body（2）The side wall of axial sliding fit position is provided with and vibration block（21）Two ends
The axial slide being slidably matched（101）, brake core bar（8）Bottom by hinge be provided with the other end towards braking core
Bar（8）The claw of upper end（82）, claw（82）Upper end with braking core bar（8）Between be provided with one end with braking core bar（8）Match
Conjunction, the other end and claw（82）It is engaged claw（82）Upper end is to braking core bar（8）The stage clip three of outer ejection（83）, claw
（82）Upper end is towards braking core bar（8）Outer side is provided with and vibration set（10）Axial slide（101）Slide to match and merge and axle
To chute（101）The claw head that is engaged of upper end（84）, main body（2）With claw on the wall of side（82）The position being engaged is provided with
Claw groove（22）, claw head（84）The claw groove of lower position（22）Edge is provided with and claw（82）Being engaged to make claw
（82）Draw main body in（2）Interior guiding surface（23）, connect core bar（11）Upper end by screw thread and vibration set（10）Under
End is axially connected, lower end slides axially and is sleeved on adapter sleeve（13）It is interior, stage clip two（12）It is sleeved on connection core bar（11）Upper, upper end
With vibration set（10）Lower surface be engaged, lower end and adapter sleeve（13）Upper surface be engaged, adapter sleeve（13）Middle part set
There is anti-rotation groove（131）, adapter sleeve（13）It is provided with anti-rotation groove（131）Position be provided with by upper bracket one（161）, upper bracket two
（162）, anti-runner one（163）, anti-runner two（164）, lower carriage one（165）With lower carriage two（166）The anti-runner for constituting is total
Into（16）, upper bracket（161）With upper bracket two（165）Upper end respectively be connected core bar（11）Bottom be hinged, under
Support one（162）With lower carriage two（166）Bottom be respectively hinged at adapter sleeve（13）On, upper bracket one（161）Lower end
With lower carriage one（165）Upper end be hinged and anti-runner one（163）It is rotatably installed in upper bracket one（161）With lower carriage one
（165）On the jointed shaft being hinged, upper bracket two（162）Lower end and lower carriage two（166）Upper end be hinged and anti-runner
Two（164）It is rotatably installed in upper bracket two（162）With lower carriage two（166）On the jointed shaft being hinged, guide pin bushing（14）Upper end
By screw thread and adapter sleeve（13）Lower end be axially connected, swivel joint（15）Lower end by screw thread and packing element core（3）It is upper
End is axially connected, swivel joint（15）Top axial slide be sleeved on guide pin bushing（14）It is interior, swivel joint（15）Upper end radially
Both ends are installed and are projected into swivel joint respectively（15）Outer sliding pin（151）, guide pin bushing（14）With swivel joint（15）Slip is matched somebody with somebody
The position of conjunction is provided with and sliding pin（151）The spiral type chute being slidably matched（141）, guide pin bushing（14）Inside it is axially arranged with upper end and guide pin bushing
（14）Inner face be engaged, lower end and swivel joint（15）The stage clip four that is engaged of upper surface（17）.
2. shocking type oil pipe stain eliminating device as claimed in claim 1, it is characterised in that the braking core bar（8）Outward flange（81）
The braking core bar of top（8）Upper end slides axially and is sleeved on top connection（1）Lower mouth in.
3. shocking type oil pipe stain eliminating device as claimed in claim 1, it is characterised in that the packing element core（3）The upper end of centre bore
By swivel joint（15）On centre bore and radial hole and swivel joint（15）It is connected outward, lower end passes through connector（5）On
Centre bore and radial hole and connector（5）It is connected outward, connector（5）Centre bore in be provided with steel ball from the top down（51）With
Stage clip five（52）, steel ball（51）With packing element core（3）The lower mouth of centre bore is engaged, stage clip five（52）Upper end and steel ball（51）Phase
Cooperation, lower end and connector（5）The inner face of centre bore is engaged.
4. shocking type oil pipe stain eliminating device as claimed in claim 1, it is characterised in that the scale removal body（6）Outer wall be provided with
Some helical cutting edges（61）.
5. shocking type oil pipe stain eliminating device as claimed in claim 4, it is characterised in that the scale removal body（6）Each spiral type cut
Cut sword（61）On be respectively equipped with several hard material cutting blades（62）.
6. shocking type oil pipe stain eliminating device as claimed in claim 1, it is characterised in that the packing element assembly（4）By from the top down
Packing element core is sleeved on successively（3）On upper packing element（41）, dottle pin（42）And lower rubber cylinder（43）Constitute.
7. shocking type oil pipe stain eliminating device as claimed in claim 1, it is characterised in that the guide pin bushing（14）It is provided with positioned at even
Female connector（13）Lower section is sleeved on guide pin bushing（14）It is provided with spiral shell and applies chute（141）Sheath outside position（142）, sheath（142）It is upper
End face and adapter sleeve（13）Lower surface be engaged, lower surface and guide pin bushing（14）Guide pin bushing outward flange on lower end outer wall（143）'s
Upper surface is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203631.9A CN106522884B (en) | 2016-12-23 | 2016-12-23 | Shocking type oil pipe stain eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203631.9A CN106522884B (en) | 2016-12-23 | 2016-12-23 | Shocking type oil pipe stain eliminating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106522884A true CN106522884A (en) | 2017-03-22 |
| CN106522884B CN106522884B (en) | 2019-03-29 |
Family
ID=58337585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611203631.9A Active CN106522884B (en) | 2016-12-23 | 2016-12-23 | Shocking type oil pipe stain eliminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522884B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577918A (en) * | 2019-01-03 | 2019-04-05 | 中国石油集团长城钻探工程有限公司 | Paraffin removal from oil well apparatus for eliminating sludge |
| CN111379540A (en) * | 2018-12-29 | 2020-07-07 | 中国石油天然气股份有限公司 | Mechanical pipe-dredging tool for oil-water well |
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| US6808019B1 (en) * | 2002-09-06 | 2004-10-26 | John F. Mabry | Sucker rod guide and paraffin scraper for oil wells |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379540A (en) * | 2018-12-29 | 2020-07-07 | 中国石油天然气股份有限公司 | Mechanical pipe-dredging tool for oil-water well |
| CN111379540B (en) * | 2018-12-29 | 2021-11-30 | 中国石油天然气股份有限公司 | Mechanical pipe-dredging tool for oil-water well |
| CN109577918A (en) * | 2019-01-03 | 2019-04-05 | 中国石油集团长城钻探工程有限公司 | Paraffin removal from oil well apparatus for eliminating sludge |
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| Publication number | Publication date |
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| CN106522884B (en) | 2019-03-29 |
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Effective date of registration: 20190215 Address after: 157000 Woodworking Machinery Factory, East Seven Road, Xin'an Street, Dongan District, Mudanjiang City, Heilongjiang Province Applicant after: Mudanjiang Jinheng Petroleum Machinery Technology Co., Ltd. Address before: 157000 Woodworking Machinery Factory, East Seven Road, Xin'an Street, Dongan District, Mudanjiang City, Heilongjiang Province Applicant before: MUDANJIANG BOSHI PETROLEUM MACHINERY TECHNOLOGY CO., LTD. |
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