CN106522884B - Shocking type oil pipe stain eliminating device - Google Patents
Shocking type oil pipe stain eliminating device Download PDFInfo
- Publication number
- CN106522884B CN106522884B CN201611203631.9A CN201611203631A CN106522884B CN 106522884 B CN106522884 B CN 106522884B CN 201611203631 A CN201611203631 A CN 201611203631A CN 106522884 B CN106522884 B CN 106522884B
- Authority
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- China
- Prior art keywords
- core bar
- connector
- main body
- matched
- claw
- 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.)
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Links
- 238000012856 packing Methods 0.000 claims abstract description 35
- 210000000078 claw Anatomy 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000003670 easy-to-clean Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 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
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 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 present invention relates to a kind of shocking type oil pipe stain eliminating devices, it includes top connection (1), main body (2), packing element core (3), it further includes braking core bar (8), vibration set (10), it connects core bar (11), connector sleeve (13), guide sleeve (14) and rotary joint (15), braking core bar (8) is sleeved in main body (2), vibration set (10) upper axial sliding sleeve is mounted in the outside of main body (2) lower semisection, the upper end for connecting core bar (11) is axially connected with the lower end of vibration set (10), lower end is sleeved in connector sleeve (13), the upper end of guide sleeve (14) is axially connected with the lower end of connector sleeve (13), the lower end of rotary joint (15) is connected with the top axial of packing element core (3), the upper end of rotary joint (15) is sleeved in guide sleeve (14).Its drifting effect is good, can remove the various dirts in oil pipe, be conducive to going on smoothly for oil field operation.It uses dedicated jarring scale removal method, preferably resolves the problem that the harder layer of scale of oil pipe does not allow easy to clean.
Description
Technical field
The present invention relates to petroleum tools, and in particular to a kind of oilfield oil well oil pipe stain eliminating operation oil pipe stain eliminating device.
Background technique
After oilfield and well longtime running, pipe inner surface can have a large amount of greasy dirt, scale and other fouls,
So that pipe aperture reduces, cause test, salvaging and other tools can not be by can not work normally.Oil field is common at present
Defeated oil pipe mode be that drifting is carried out by gravity using the gauguste cutter of certain diameter, but gauguste cutter is limited by weight, is being located
Jack rabbit can not often remove it when managing the oil pipe with harder layer of scale, and drifting is caused to fail.When there is such case,
Going on smoothly for oil field normal operation can be seriously affected.
Summary of the invention
The object of the present invention is to provide a kind of drifting effect is good, the various dirts in oil pipe can be removed, oil field is conducive to
The shocking type oil pipe stain eliminating device of operation gone on smoothly.
The technical solution of the invention is as follows: it includes top connection, main body, packing element core, packing element assembly, connector, scale removal
The lower end of body and guide head, top connection is connected by screw thread with the top axial of main body, and packing element assembly is sleeved on packing element core, glue
The lower end of tube filler is connected by screw thread with the top axial of connector, and the upper end of scale removal body passes through the lower end axis of screw thread and connector
It is connected to connected, lower end by screw thread with the top axial of guide head, it further includes braking core bar, pressure spring one, vibration set, connection
Core bar, pressure spring two, connector sleeve, guide sleeve and rotary joint, braking core bar are sleeved in main body, top connection lower end surface lower position
Braking core bar outer wall is equipped with the outward flange that upper surface is matched with top connection lower end surface, and pressure spring one is located at the lower square set of outward flange
On braking core bar and be located in main body, the upper end of pressure spring one matches with the lower end surface of outward flange, lower end and main body it is interior
End face matches, and vibration set top, which slides axially, is sleeved on the outside of main body lower semisection, and the lower end of main body is radially provided with installation
The side wall of vibration block in main body, vibration set and main body axial sliding fit position is equipped with matches with the sliding of the both ends of vibration block
The axial slide of conjunction, the lower end for braking core bar are hingedly equipped with claw of the other end towards braking core bar upper end by pin shaft,
It is matched equipped with one end with braking core bar between the upper end of claw and braking core bar, the other end is matched with claw by claw upper end
The pressure spring three popped up to outside braking core bar, claw upper end are equipped with and vibration set axial slide sliding towards the side outside braking core bar
Match the claw head for merging and matching with the upper end of axial slide, and the position matched in main body wall with claw is equipped with claw
Slot, the claw trough side part of claw head lower position, which is equipped with to match with claw, can be such that claw collapses to the intracorporal guiding of master tiltedly
Face, connects that the upper end of core bar is axially connected by screw thread with the lower end that vibration covers, lower end slides axially and is sleeved in connector sleeve, presses
Spring two is sleeved on connection core bar, upper end is matched with the lower end surface that vibration covers, lower end is matched with the upper surface of connector sleeve, even
The middle part of female connector be equipped with anti-rotation groove, connector sleeve be equipped with anti-rotation groove position be equipped with by upper bracket one, upper bracket two, anti-runner one,
The anti-rotation wheel assembly that anti-runner two, lower bracket one and lower bracket two are constituted, upper bracket one and two upper end of upper bracket are respectively and even
The lower end for connecing core bar is hinged, and the lower end of lower bracket one and lower bracket two is respectively hinged on connector sleeve, upper bracket one
Lower end and the upper end of lower bracket one are hinged and anti-runner one be rotatably installed in upper bracket one be hinged with lower bracket one it is hinged
On axis, the lower end of upper bracket two is hinged with the upper end of lower bracket two and anti-runner two is rotatably installed in upper bracket two and lower bracket
On two articulated shafts being hinged, the upper end of guide sleeve is axially connected by screw thread with the lower end of connector sleeve, and the lower end of rotary joint is logical
Screw thread is crossed to be connected with the top axial of packing element core, the top axial sliding sleeve of rotary joint in guide sleeve, rotary joint it is upper
End radially installed has both ends to be projected into the sliding pin outside rotary joint respectively, and guide sleeve is equipped with the position that rotary joint is slidably matched
The spiral shape sliding slot being slidably matched with sliding pin, be axially arranged in guide sleeve upper end matched with the inner face of guide sleeve, lower end and rotation
The pressure spring four that the upper surface of connector matches.
The solution have the advantages that: its drifting effect is good, can remove the various dirts in oil pipe, is conducive to oil field work
Industry is gone on smoothly.It forces the dedicated jarring scale removal method for mechanical impact composition of forcing to make peace using spiral scale removal reamer hydrous water,
The problem that the harder layer of scale of oil pipe does not allow easy to clean is preferably resolved, going on smoothly for drifting operation is effectively guaranteed,
It is also beneficial to the smooth development of other operations after drifting.It is easy to operate, easy to use, and dirt removal effect is good, can make to remove
Pipe inner surface after dirt is smooth, and more convenient test is salvaged and other tools pass through.
Detailed description of the invention
Fig. 1 is cross-sectional view of the embodiment of the present invention.
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 guiding
First 7, the lower end of top connection 1 is connected by screw thread with the top axial of main body 2, and packing element assembly 4 is sleeved on packing element core 3, packing element
The lower end of core 3 is connected by screw thread with the top axial of connector 5, and the upper end of scale removal body 6 passes through the lower end of screw thread and connector 5
Axial connected, lower end is connected by screw thread with the top axial of guide head 7, it further includes braking core bar 8, pressure spring 1, vibration set
10, core bar 11, pressure spring 2 12, connector sleeve 13, guide sleeve 14 and rotary 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 end surface lower position of connector is equipped with the outward flange that upper surface is matched with 1 lower end surface of top connection
81, the lower section that pressure spring 1 is located at outward flange 81 is sleeved on braking core bar 8 and is located in main body 2, the upper end of pressure spring 1 and outer
The lower end surface of flange 81 matches, lower end is matched with the inner face of main body 2, and vibration covers 10 upper axial sliding sleeves and is mounted in main body
The outside of 2 lower semisections, the lower end of main body 2 are radially provided with the vibration block 21 of installation on the body 2, vibration set 10 and 2 axis of main body
It is equipped with the axial slide 101 being slidably matched with the both ends of vibration block 21 to the side wall for the position that is slidably matched, brakes under core bar 8
End is hingedly equipped with claw 82 of the other end towards braking 8 upper end of core bar, the upper end of claw 82 and braking core bar 8 by pin shaft
Between be equipped with that one end is matched with braking core bar 8, the other end is matched 82 upper end of claw with claw 82 to braking the outer bullet of core bar 8
Pressure spring 3 83 out, 82 upper end of claw is equipped with to cover 10 axial slides 101 with vibration and slide towards the side outside braking core bar 8 to match
Merge the claw head 84 matched with the upper end of axial slide 101, the position matched on 2 side wall of main body with claw 82 is equipped with
Claw slot 22,22 edge of claw slot of 84 lower position of claw head, which is equipped with to match with claw 82, can be such that claw 82 collapses to master
Guiding surface 23 in body 2, the upper end of connection core bar 11 is axially connected by screw thread with the lower end of vibration set 10, lower end is axially sliding
It is dynamic to be sleeved in connector sleeve 13, pressure spring 2 12 is sleeved on connection core bar 11, upper end is matched with the lower end surface of vibration set 10, under
End is matched with the upper surface of connector sleeve 13, and the middle part of connector sleeve 13 is equipped with anti-rotation groove 131, and connector sleeve 13 is equipped with anti-rotation groove 131
Position be equipped with by upper bracket 1, upper bracket 2 162, anti-runner 1, anti-runner 2 164, lower bracket 1 and lower branch
The anti-rotation wheel assembly 16 that frame 2 166 is constituted, upper bracket 1 and 2 165 upper end of upper bracket respectively with connect under core bar 11
End is hinged, and the lower end of lower bracket 1 and lower bracket 2 166 is respectively hinged on connector sleeve 13, upper bracket 1
The upper end of lower end and lower bracket 1 is hinged and anti-runner 1 is rotatably installed in upper bracket 1 and lower bracket 1
On the articulated shaft being hinged, the lower end of upper bracket 2 162 is hinged with the upper end of lower bracket 2 166 and anti-runner 2 164 rotates
It is mounted on the articulated shaft that upper bracket 2 162 and lower bracket 2 166 are hinged, the upper end of guide sleeve 14 passes through screw thread and connector sleeve 13
Lower end be axially connected, the lower end of rotary joint 15 is connected by screw thread with the top axial of packing element core 3, rotary joint 15 it is upper
End, which slides axially, to be sleeved in guide sleeve 14, and the upper end radially installed of rotary joint 15 has both ends to be projected into rotary joint 15 respectively
The position that outer sliding pin 151, guide sleeve 14 and rotary joint 15 are slidably matched is equipped with the spiral shape sliding slot being slidably matched with sliding pin 151
141, it is axially arranged with that upper end is matched with the inner face of guide sleeve 14, lower end is matched with the upper surface of rotary joint 15 in guide sleeve 14
Pressure spring 4 17.
8 upper end of braking core bar of 81 top of braking 8 outward flange of core bar, which slides axially, to be sleeved in the lower mouth of top connection 1.
The upper end of 3 centre bore of packing element core outside the centre bore and radial hole and rotary joint 15 on rotary joint 15 by being connected
Logical, lower end by being connected outside the centre bore and radial hole and connector 5 on connector 5, the centre bore of connector 5 it is interior on to
Steel ball 51 and pressure spring 5 52 are had, steel ball 51 is matched with the lower mouth of 3 centre bore of packing element core, the upper end of pressure spring 5 52 and steel ball
51 match, lower end is matched with the inner face of 5 centre bore of connector.
The outer wall of scale removal body 6 is equipped with several helical cutting edges 61.Divide on each helical cutting edge 61 of scale removal body 6
It She You not several hard material cutting blades 62.
Packing element assembly 4 is by 43 structure of upper packing element 41, dottle pin 42 and lower rubber cylinder that is successively sleeved on packing element core 3 from the top down
At.
Guide sleeve 14, which is equipped with to be located at below connector sleeve 13, is sleeved on guide sleeve 14 equipped with the shield outside 141 position of spiral shape sliding slot
Set 142, the upper surface of sheath 142 matches with the lower end surface of connector sleeve 13, the guide sleeve on 14 lower end outer wall of lower end surface and guide sleeve
The upper surface of outward flange 143 matches.
Vibration set 10 by screw thread with connect the position that core bar 11 is axially connected, connector sleeve 13 passes through screw thread and guide sleeve 14
Position that the position that is axially connected, rotary joint 15 are axially connected by screw thread with packing element core 3, packing element core 3 pass through screw thread
The position that is axially connected with connector 5, connector 5 are respectively equipped with by screw thread with the position that scale removal body 6 is axially connected logical
Cross the steady nail 18 that the end being threadably mounted on interior threaded part is matched with externally threaded item.
Working principle: top connection 1 is connected by the wirerope of winch wire on well, this descaler is put into underground arrival knot
It can be stuck and can not pass through above dirty oil pipe, by putting on connector 1 on wirerope, drive entire descaler to rise, 1 band of top connection
Dynamic main body 2, which rises, to take in claw 82 in main body 2,2 compression press spring 1 of main body drive braking core bar 8 in vibration set 10 to
Upper sliding is blocked until vibration block 21 by 101 top of axial slide on vibration set 10.Meanwhile vibration set 10 will connect core bar 11
Draw uppermost position to make in two anti-runners income connector sleeves 13, guide sleeve 14 rise to matched with rotary joint 15 it is most upper
It sets in orientation.Top connection 1 is discharged by wirerope when scale removal, falls on scale removal under descaler under water flow pressure and gravity on well
Body 6 is blocked by the dirt in oil pipe, and main body 2 is sprung back downwards under the elastic force effect of pressure spring 1 and under gravity.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, and makes each anti-
Runner is opened to be stuck on tube inner wall out of connector sleeve 13 and prevents connector sleeve 13 from rotating in oil pipe but can slide axially.Guide sleeve
14 glide when control by each anti-runner will not rotate in oil pipe, spiral chute 141 thereon can by sliding pin 151 drive rotation
Connector 15 rotates, then drives scale removal body 6 and guide head 7 to rotate by packing element core 3 and connector 5, thus by tube inner wall
Dirt scrapes away.Water flow is flowed through from the centre bore of packing element core 3 by radial hole on rotary joint 15 and centre bore, oppresses steel ball
51 and pressure spring 5 52 from the centre bore and radial hole of connector 5 flow out, the fouling scraped away by scale removal body 6 is flushed to oil pipe downwards
Lower section.Steel ball 51 and pressure spring 5 52 on connector 5 also have non-return effect can since packing element assembly 4 is by pressure expansion on well
It is gushed with preventing down-hole pressure from crossing on the centre bore of high pass packing element core 3.
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), the lower end of scale removal body (6) and guide head (7), top connection (1) is connected by screw thread with the top axial of main body (2), packing element
Assembly (4) is sleeved on packing element core (3), and the lower end of packing element core (3) is connected by screw thread with the top axial of connector (5), is removed
The upper end of dirty body (6) is axially connected by the lower end of screw thread and connector (5), lower end passes through the upper end of screw thread and guide head (7)
It is axial to be connected, it is characterised in that: it further includes braking core bar (8), pressure spring one (9), vibration set (10), connection core bar (11), pressure
Spring two (12), connector sleeve (13), guide sleeve (14) and rotary joint (15), braking core bar (8) are sleeved in main body (2), top connection
(1) braking core bar (8) outer wall of lower end surface lower position is equipped with the outward flange that upper surface is matched with top connection (1) lower end surface
(81), pressure spring one (9), which is located at below outward flange (81), is sleeved in braking core bar (8) and is located in main body (2), pressure spring one
(9) upper end is matched with the lower end surface of outward flange (81), lower end is matched with the inner face of main body (2), on vibration set (10)
Portion, which slides axially, is sleeved on the outside of main body (2) lower semisection, and the lower end of main body (2), which is radially provided with, to be mounted on main body (2)
The side wall of vibration block (21), vibration set (10) and main body (2) axial sliding fit position is equipped with the both ends with vibration block (21)
The lower end of the axial slide (101) being slidably matched, braking core bar (8) is hingedly equipped with the other end towards braking core by pin shaft
The claw (82) of bar (8) upper end is equipped with one end between the upper end and braking core bar (8) of claw (82) and braking core bar (8) matches
It closes, the other end matches the pressure spring three (83) for popping up claw (82) upper end outside to braking core bar (8), claw with claw (82)
(82) upper end is equipped with to match with vibration set (10) axial slide (101) sliding towards braking core bar (8) outer side and merge and axis
The claw head (84) matched to the upper end of sliding slot (101), the position matched on main body (2) side wall with claw (82) are equipped with
Claw slot (22), claw slot (22) edge of claw head (84) lower position, which is equipped with to match with claw (82), can make claw
(82) it collapses to the guiding surface (23) in main body (2), the upper end of connection core bar (11) passes through under screw thread and vibration set (10)
End is axial to be connected, lower end slides axially and is sleeved in connector sleeve (13), and pressure spring two (12) is sleeved in connection core bar (11), upper end
Matched with the lower end surface of vibration set (10), lower end is matched with the upper surface of connector sleeve (13), connector sleeve is set in the middle part of (13)
Have anti-rotation groove (131), the position that connector sleeve (13) is equipped with anti-rotation groove (131) is equipped with by upper bracket one (161), upper bracket two
(162), the anti-runner that anti-runner one (163), anti-runner two (164), lower bracket one (165) and lower bracket two (166) are constituted is total
At (16), upper bracket one (161) and upper bracket two (165) upper end are hinged with the lower end for connecting core bar (11) respectively, under
The lower end of bracket one (162) and lower bracket two (166) is respectively hinged on connector sleeve (13), the lower end of upper bracket one (161)
It is hinged with the upper end of lower bracket one (165) and anti-runner one (163) is rotatably installed in upper bracket one (161) and lower bracket one
(165) on the articulated shaft being hinged, the lower end of upper bracket two (162) is hinged with the upper end of lower bracket two (166) and anti-runner
Two (164) are rotatably installed on the articulated shaft that upper bracket two (162) and lower bracket two (166) are hinged, the upper end of guide sleeve (14)
Axially be connected by the lower end of screw thread and connector sleeve (13), the lower end of rotary joint (15) passes through the upper of screw thread and packing element core (3)
End is axial to be connected, and for the top axial sliding sleeve of rotary joint (15) in guide sleeve (14), the upper end of rotary joint (15) is radial
Both ends are installed and are projected into the sliding pin (151) of rotary joint (15) outside respectively, guide sleeve (14) is matched with rotary joint (15) sliding
The position of conjunction is equipped with the spiral shape sliding slot (141) being slidably matched with sliding pin (151), is axially arranged with upper end and guide sleeve in guide sleeve (14)
(14) pressure spring four (17) that inner face matches, lower end is matched with the upper surface of rotary joint (15).
2. shocking type oil pipe stain eliminating device as described in claim 1, it is characterised in that braking core bar (8) outward flange (81)
Braking core bar (8) upper end of top, which slides axially, to be sleeved in the lower mouth of top connection (1).
3. shocking type oil pipe stain eliminating device as described in claim 1, it is characterised in that the upper end of packing element core (3) centre bore
By being connected outside the centre bore and radial hole and rotary joint (15) on rotary joint (15), lower end passes through on connector (5)
Centre bore and radial hole and connector (5) outside be connected, be equipped with from the top down in the centre bore of connector (5) steel ball (51) and
Pressure spring five (52), steel ball (51) are matched with the lower mouth of packing element core (3) centre bore, upper end and steel ball (51) phase of pressure spring five (52)
Cooperation, lower end are matched with the inner face of connector (5) centre bore.
4. shocking type oil pipe stain eliminating device as described in claim 1, it is characterised in that the outer wall of the scale removal body (6) is equipped with
Several helical cutting edges (61).
5. shocking type oil pipe stain eliminating device as claimed in claim 4, it is characterised in that each spiral shape of the scale removal body (6) is cut
It cuts and is respectively equipped with several hard material cutting blades (62) on sword (61).
6. shocking type oil pipe stain eliminating device as described in claim 1, it is characterised in that the packing element assembly (4) is by from the top down
Upper packing element (41), dottle pin (42) and the lower rubber cylinder (43) being successively sleeved on packing element core (3) are constituted.
7. shocking type oil pipe stain eliminating device as described in claim 1, it is characterised in that the guide sleeve (14), which is equipped with to be located at, to be connected
The sheath (142) that guide sleeve (14) are equipped with outside spiral shape sliding slot (141) position is sleeved below female connector (13), sheath (142)
Upper surface matches with the lower end surface of connector sleeve (13), the guide sleeve outward flange (143) on lower end surface and guide sleeve (14) lower end outer wall
Upper surface match.
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 CN106522884A (en) | 2017-03-22 |
| CN106522884B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109577918B (en) * | 2019-01-03 | 2021-01-26 | 中国石油天然气集团有限公司 | Wax-removing and descaling device for oil well |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6808019B1 (en) * | 2002-09-06 | 2004-10-26 | John F. Mabry | Sucker rod guide and paraffin scraper for oil wells |
| CN203655254U (en) * | 2013-12-28 | 2014-06-18 | 牡丹江博实石油机械科技有限公司 | Single-layer profile control device |
| CN103670330B (en) * | 2013-12-31 | 2016-02-10 | 牡丹江博实石油机械科技有限公司 | Oil field water well water injection string shutoff preset bottom valve |
| CN203729951U (en) * | 2014-03-28 | 2014-07-23 | 大庆市晟威机械制造有限公司 | Retractable pigging cleaner |
| CN204371209U (en) * | 2014-12-31 | 2015-06-03 | 牡丹江博实石油机械科技有限公司 | Salvagable oil pipe stain eliminating blanking plug |
| CN105422064B (en) * | 2015-12-24 | 2017-09-05 | 牡丹江博实石油机械科技有限公司 | Special profile control device |
| CN206352499U (en) * | 2016-12-23 | 2017-07-25 | 牡丹江博实石油机械科技有限公司 | Shocking type oil pipe stain eliminating device |
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2016
- 2016-12-23 CN CN201611203631.9A patent/CN106522884B/en active Active
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| CN106522884A (en) | 2017-03-22 |
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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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