CN106437595B - Automatically arm-type throw in catcher is received - Google Patents
Automatically arm-type throw in catcher is received Download PDFInfo
- Publication number
- CN106437595B CN106437595B CN201611185871.0A CN201611185871A CN106437595B CN 106437595 B CN106437595 B CN 106437595B CN 201611185871 A CN201611185871 A CN 201611185871A CN 106437595 B CN106437595 B CN 106437595B
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- China
- Prior art keywords
- lockwheel
- main body
- pawl
- pulling
- sliding block
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- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 210000000078 claw Anatomy 0.000 claims description 18
- 208000009782 Plagiocephaly Diseases 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 241000251468 Actinopterygii Species 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
The present invention relates to one kind to receive arm-type throw in catcher automatically, pulling pawl (5) is by upper pulling pawl (52), lower pulling pawl (53), it is shorted (54), pressure spring (55) and pressing and sending head or fishing head (56) are constituted, it further includes sliding block (57), push-pull rod (58) and the dual-purpose spring of tension and compression (59), sliding block (57) is slidably mounted on the slideway (22) of main body 2, sliding block (57) is equipped with sliding block stop mechanism (7), the upper and lower ends of slideway (22) are respectively equipped with lock groove (23) and lower lock groove (24), one end of push-pull rod (58) is hinged with short circuit (54), the other end is hinged with sliding block (57), one end of the dual-purpose spring of tension and compression (59) is connected to the middle part of pulling pawl (52), the other end is connected with sliding block (57).Its pulling pawl can be taken in automatically in upper main body after throwing, fishing process are opened in underground, can continue to launch to below injection well downhole flow regulator, be conducive to improve oil field overall operation progress.
Description
Technical field
The present invention relates to petroleum tools, and in particular to the plug for eccentricity hole that one kind can automatically withdraw pulling pawl
Throw in catcher.
Background technique
Eccentric injection mandrel throw in catcher is a kind of tool for the blanking plug in the inclined hole of pulling down-hole eccentric device, it was both
It can be used for throwing, fish out blanking plug, it is also possible to is very convenient to use to replace water nozzle.But existing eccentric injection mandrel throw in catcher
Pulling pawl opened in underground throw, fishing process after cannot take in automatically in upper main body, the pulling pawl that when decentralization opens can be by
Card causes throw in catcher that can not continue to launch to below injection well downhole flow regulator, therefore can not match with other tools and carry out next step operation,
It is unfavorable for improving oil field overall operation progress.
Summary of the invention
The object of the present invention is to provide a kind of pulling pawls can take in upper master after throwing, fishing process are opened in underground automatically
In vivo, can continue to launch to below injection well downhole flow regulator, throw in catcher will not be blocked when decentralization, can be matched and be carried out down with other tools
One-shot job is conducive to the arm-type throw in catcher of receipts automatically for improving oil field overall operation progress.
The technical solution of the invention is as follows: it includes rope socket, main body, lower main body and bottom are stifled on one or two, upper master
The upper end of body is axially connected by screw thread with the lower end of rope socket, lower end is connected by screw thread with the top axial of lower main body, or on
The upper end of main body is axially connected by screw thread with the lower end of rope socket in side, lower end passes through the top axial of main body on screw thread and lower section
It is connected, the lower end of main body is connected by screw thread with the top axial of lower main body on lower section, and the lower end of lower main body passes through screw thread and bottom
It is stifled axial connected, it is rotatably equipped with lockwheel assembly one by lockwheel axis one in upper main body, is hingedly equipped with by pulling pawl axis
End is hinged on the pulling pawl that in main body and upper end is matched with lockwheel, passes through lockwheel axis two in lower main body and is rotatably equipped with lockwheel
Assembly two is hingedly equipped with upper end by guide grab axis and is hinged on the guide grab that in lower main body and upper end is matched with lockwheel, is led
To being equipped with guide grab pressure spring between pawl and lower main body, pulling pawl by upper pulling pawl, lower pulling pawl, short circuit, pressure spring and pressing and sending head or
Head to be fished out to constitute, the upper end of upper pulling pawl is hinged by pulling pawl axis with upper main body, lower end and the upper end of lower pulling pawl are hinged,
Short circuit is mounted on lower pulling pawl along sliding axially for lower pulling pawl, and pressure spring is mounted on both ends difference between pulling pawl and short circuit
It is matched with upper pulling pawl and short circuit, sliding axially for pulling pawl is mounted on lower pulling pawl under the upper end edge of pressing and sending head or fishing head
Upper, upper end is matched with short circuit, and pulling pawl further includes sliding block, push-pull rod and the dual-purpose spring of tension and compression, axial direction of the sliding block along upper main body
It is slidably mounted on the slideway on main body pulling claw slot bottom, sliding block is equipped with sliding block stop mechanism, the upper and lower ends point of slideway
The upper lock groove and lower lock groove that She You not match with sliding block stop mechanism, one end and the short circuit of push-pull rod are hinged, are another
End is hinged with sliding block, and one end of the dual-purpose spring of tension and compression is connected to the middle part of pulling pawl, the other end is connected with sliding block, tension and compression
Pulling pawl is retracted upper main body by the pop-up of pulling pawl, when pulling pawl is withdrawn when pulling pawl is opened from upper main body by dual-purpose spring
On pulling claw slot in.
The solution have the advantages that: its pulling pawl can be taken in automatically after throwing, fishing process are opened in underground
In main body, it can continue to launch to below injection well downhole flow regulator, throw in catcher will not be blocked when decentralization, and progress can be matched with other tools
Next step operation is conducive to improve oil field overall operation progress.Its structure is simple, and reliable in action is more convenient to use, solution
Determined existing eccentric injection mandrel throw in catcher pulling pawl underground open after cannot take in automatically in upper main body, lead to throw in catcher not
It can continue the problem of launching to below injection well downhole flow regulator.It can effectively reduce the number that tool is launched to underground on well, can be significantly
It improves pulling and surveys speed regulation degree, production efficiency of oilfields can be effectively improved.
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 rope socket 1, main body 2, lower main body 3 and bottom stifled 4 on one or two, the upper end of upper main body 2
Axially be connected by the lower end of screw thread and rope socket 1, lower end by screw thread be connected with the top axial of lower main body 3 or top on lead
The top axial phase that the upper end of body 2 is axially connected by screw thread with the lower end of rope socket 1, lower end passes through main body 2 on screw thread and lower section
Even, the lower end of main body 2 is connected by screw thread with the top axial of lower main body 3 on lower section, and the lower end of lower main body 3 passes through screw thread and bottom
Stifled 4 is axial connected, is rotatably equipped with lockwheel assembly 1 by lockwheel axis 1 in upper main body 2, is hingedly pacified by pulling pawl axis 51
It is hinged on the pulling pawl 5 that in upper main body 2 and upper end is matched with lockwheel equipped with upper end, passes through 2 91 turns of lockwheel axis in lower main body 3
It is dynamic that lockwheel assembly 29 is installed, upper end is hingedly installed by guide grab axis 61 is hinged in lower main body 3 and upper end and lockwheel phase
The guide grab 6 of cooperation is equipped with guide grab pressure spring 62 between guide grab 6 and lower main body 3, pulling pawl 5 is by upper pulling pawl 52, lower pulling
Pawl 53 is shorted 54, pressure spring 55 and pressing and sending head or fishes out the composition of head 56, and the upper end of upper pulling pawl 52 passes through pulling pawl axis 51 and upper main body
2 are hinged, lower end and the upper end of lower pulling pawl 53 are hinged, and are shorted 54 and are mounted on lower pulling along sliding axially for lower pulling pawl 53
On pawl 53, pressure spring 55 is mounted on pulling pawl 52 and is shorted both ends between 54 and matches respectively with upper pulling pawl 52 and short circuit 54,
Pressing and sending head or fish out head 56 upper end edge under pulling pawl 53 slide axially be mounted on lower pulling pawl 53, upper end and be shorted 54 match
It closes, pulling pawl 5 further includes sliding block 57, push-pull rod 58 and the dual-purpose spring 59 of tension and compression, slide axially installation of the sliding block 57 along upper main body 2
On the slideway 22 on upper 2 pulling claw slot of main body, 21 bottom, sliding block 57 is equipped with sliding block stop mechanism 7, the upper and lower ends of slideway 22
It is respectively equipped with the upper lock groove 23 matched with sliding block stop mechanism 7 and lower lock groove 24, one end of push-pull rod 58 and short circuit 54
Be hinged, the other end and sliding block 57 are hinged, one end of the dual-purpose spring 59 of tension and compression is connected to the middle part of pulling pawl 52, the other end
It is connected with sliding block 57, the dual-purpose spring 59 of tension and compression is when pulling pawl 5 is opened from upper main body 2 by the pop-up of pulling pawl 5, in pulling pawl
5 retract pulling pawl 5 when withdrawing in the pulling claw slot 21 in upper main body 2.
Lockwheel assembly 1 in upper main body 2 is made of lockwheel 1, lockwheel pawl 1 and torsional spring 1, and lockwheel 1 is logical
It crosses lockwheel axis 1 to be rotatably installed in main body 2, lockwheel pawl 1 is hinged in lockwheel 1 by lockwheel pawl axis, torsional spring one
84 are sleeved on lockwheel pawl axis, one end is matched with lockwheel 1, the other end is matched with lockwheel pawl 1.It is set in lockwheel 1
There is fixture block and the lockwheel that pulling pawl 5 can be stuck in the pulling claw slot 21 in upper main body 2 matched with the upper end of pulling pawl 5
1 rotate down after can make what pulling pawl 5 opened out of pulling claw slot 21 in upper main body 2 to match with 5 upper end of pulling pawl
Notch.
Lockwheel assembly 29 in lower main body 3 is made of lockwheel 22, lockwheel pawl 2 93 and torsional spring 2 94, and lockwheel 2 92 passes through
Lockwheel axis 2 91 is rotatably installed in lower main body 3, and lockwheel pawl 2 93 is hinged in lockwheel 2 92 by lockwheel pawl axis, torsional spring 2 94
It is sleeved on lockwheel pawl axis, one end is matched with lockwheel 2 92, the other end is matched with lockwheel pawl 2 93.Lockwheel 2 92 is equipped with
Fixture block and the lockwheel two that guide grab 6 can be stuck in the guiding claw slot 31 in lower main body 3 matched with the upper end of guide grab 6
92 rotate down after can make that guide grab 6 opens out of guiding claw slot 31 in lower main body 3 matched with 6 upper end of guide grab
Notch.
Sliding block stop mechanism 7 is by being mounted on sliding block 57 perpendicular to the small pressure spring and steel ball in the locking hole in 22 direction of slideway
Or plagiocephaly bayonet lock is constituted, one end of small pressure spring is matched with locking hole bottom, the other end is matched with steel ball or plagiocephaly bayonet lock, steel ball
Or the small half part of plagiocephaly bayonet lock is exposed to outside sliding block 57 and matches with upper lock groove 23 and lower lock groove 24.
Application method: the lockwheel 1 in main body 2 is downwardly turned over before this throw in catcher investment underground, sliding block 57 is located at this time
The position matched with lower lock groove 24, the dual-purpose spring 59 of tension and compression have the function of pressure spring, can be by pulling pawl 5 from upper main body 2
Pulling pawl 5 is opened in pop-up in pulling claw slot 21.Blanking plug is mounted on pressing and sending head, is connected with shear pin, it is same to push pulling pawl 5
When be flipped up lockwheel 1, pulling pawl 5 is locked in the pulling claw slot 21 of main body 2 on throw in catcher by lockwheel 1.By pulling
The rope socket 1 of device connects and delivers throw in catcher to underground after wirerope, above mentions after reaching specified injection well downhole flow regulator lower part to the injection well downhole flow regulator
Portion.Lockwheel 2 92 when above mentioning when throw in catcher in upper main body 2 and lower main body 3, which is hampered, to be downwardly turned over, and pulling pawl 5 and guide grab 6 divide
It is not opened from the upper and lower main body 3 of upper main body 2, delivers throw in catcher still further below, pulling pawl 5 is under the guiding role of guide grab 6
Blanking plug can be put into the inclined hole of injection well downhole flow regulator to (or fishing head is salvaged to blanking plug).While delivering blanking plug (or salvaging blanking plug)
Pressing and sending head (or fishing head) is pushed push-pull rod 58 by being shorted 54 by reaction force uplink, and push-pull rod 58 pushes sliding block 57 to go upward to cunning
The matching of block stop mechanism 7 and upper lock groove 23, which merges, to be locked in lock position on slideway 22 for sliding block 57 and no longer glides, and is connected to
The dual-purpose spring 59 of tension and compression between upper pulling pawl 52 and sliding block 57 elongates, and the dual-purpose spring 59 of tension and compression at this time has the function of tension spring, right
Pulling pawl 5 generates the pulling force recycled into pulling claw slot 22, and after being again stepped up throw in catcher, pulling pawl 5 can be automatically dual-purpose by tension and compression
Spring 59 retracts in the pulling claw slot 22 received in main body 2, in order to which throw in catcher continues to deliver downwards.
After flowmeter is connect with this throw in catcher on well, can deliver after blanking plug again by throw in catcher and flowmeter to
Lower delivery is measured hydrophone lower part flow, makes to throw stifled device and measurement of discharge operation is once gone into the well completion.Throw in catcher pressing and sending head is replaced with
Head is fished out, the blanking plug in injection well downhole flow regulator eccentric orfice can be pulled out.Such throw in catcher can install a upper main body 2 or install two
Upper main body 2, the pulling pawl 5 when installing two upper main bodys 2 in the upper main body 2 in lower section install fishing head, the pulling pawl on top in main body 2
5 installation pressing and sending heads and blanking plug, the completion that can once go into the well pull a blanking plug out and put into another blanking plug, and operate province
Work is again time saving.
Claims (6)
1. receiving arm-type throw in catcher automatically, it includes rope socket (1), (4) are blocked up at main body (2), lower main body (3) and bottom on one or two,
The upper end of upper main body (2) is axially connected by the lower end of screw thread and rope socket (1), lower end passes through the upper end of screw thread and lower main body (3)
It is axial be connected or top on main body (2) upper end be axially connected by screw thread with the lower end of rope socket (1), lower end passes through screw thread and
The top axial of main body (2) is connected on lower section, and the lower end of main body (2) passes through the top axial of screw thread and lower main body (3) on lower section
It is connected, the lower end of lower main body (3) blocks up (4) bottom of with by screw thread and is axially connected, and is rotated on upper main body (2) by lockwheel axis one (81)
Lockwheel assembly one (8) is installed, upper end is hingedly installed by pulling pawl axis (51) is hinged on main body (2) and upper end and lock
The pulling pawl (5) matched is taken turns, passes through lockwheel axis two (91) on lower main body (3) and is rotatably equipped with lockwheel assembly two (9), by leading
Upper end is hingedly installed to pawl axis (61) and is hinged on the guide grab (6) that on lower main body (3) and upper end is matched with lockwheel, guide grab
(6) guide grab pressure spring (62) are equipped between lower main body (3), it is characterised in that: pulling pawl (5) is by upper pulling pawl (52), lower throwing
It fishes out pawl (53), be shorted (54), pressure spring (55) and pressing and sending head or fishing head (56) composition, the upper end of upper pulling pawl (52) passes through pulling pawl
Axis (51) is hinged with upper main body (2), lower end and the upper end of lower pulling pawl (53) are hinged, and is shorted (54) along lower pulling pawl (53)
Slide axially and be mounted on lower pulling pawl (53), pressure spring (55) is mounted on pulling pawl (52) and is shorted both ends point between (54)
It is not matched with upper pulling pawl (52) and short circuit (54), the axial direction of pulling pawl (53) is sliding under the upper end edge of pressing and sending head or fishing head (56)
It is dynamic be mounted on lower pulling pawl (53), upper end is matched with short circuit (54), pulling pawl (5) further includes sliding block (57), push-pull rod
(58) and the dual-purpose spring of tension and compression (59), sliding block (57) are mounted on upper main body (2) pulling claw slot along sliding axially for upper main body (2)
(21) on the slideway on bottom (22), sliding block (57) is equipped with sliding block stop mechanism (7), and the upper and lower ends of slideway (22) are respectively equipped with
The upper lock groove (23) and lower lock groove (24) matched with sliding block stop mechanism (7), one end of push-pull rod (58) and short circuit
(54) be hinged, the other end and sliding block (57) are hinged, one end of the dual-purpose spring of tension and compression (59) is connected to pulling pawl (52)
Middle part, the other end are connected with sliding block (57), and the dual-purpose spring of tension and compression (59) will when pulling pawl (5) is opened from upper main body (2)
Pulling pawl (5) pop-up retracts pulling pawl (5) in the pulling claw slot (21) on upper main body (2) when pulling pawl (5) are withdrawn.
2. receiving arm-type throw in catcher automatically as described in claim 1, it is characterised in that the lockwheel assembly on the upper main body (2)
One (8) are made of lockwheel one (82), lockwheel pawl one (83) and torsional spring one (84), and lockwheel one (82) is rotated by lockwheel axis one (81)
It is mounted on main body (2), lockwheel pawl one (83) is hinged in lockwheel one (82) by lockwheel pawl axis, and torsional spring one (84) is sleeved on
On lockwheel pawl axis, one end is matched with lockwheel one (82), the other end is matched with lockwheel pawl one (83).
3. receiving arm-type throw in catcher automatically as claimed in claim 2, it is characterised in that the lockwheel one (82) is equipped with and pulling
The fixture block and lockwheel in the pulling claw slot (21) that can be stuck in pulling pawl (5) on upper main body (2) that the upper end of pawl (5) matches
One (82) can make that pulling pawl (5) opens out of pulling claw slot (21) on upper main body (2) after rotating down with pulling pawl (5)
The notch that upper end matches.
4. receiving arm-type throw in catcher automatically as described in claim 1, it is characterised in that the lockwheel assembly on the lower main body (3)
Two (9) are made of lockwheel two (92), lockwheel pawl two (93) and torsional spring two (94), and lockwheel two (92) is rotated by lockwheel axis two (91)
It is mounted on lower main body (3), lockwheel pawl two (93) is hinged in lockwheel two (92) by lockwheel pawl axis, and torsional spring two (94) is sleeved on
On lockwheel pawl axis, one end is matched with lockwheel two (92), the other end is matched with lockwheel pawl two (93).
5. receiving arm-type throw in catcher automatically as claimed in claim 4, it is characterised in that the lockwheel two (92) is equipped with and guiding
The fixture block and lockwheel in the guiding claw slot (31) that can be stuck in guide grab (6) on lower main body (3) that the upper end of pawl (6) matches
Two (92) can make that guide grab (6) opens out of guiding claw slot (31) on lower main body (3) after rotating down with guide grab (6)
The notch that upper end matches.
6. receiving arm-type throw in catcher automatically as described in claim 1, it is characterised in that the sliding block stop mechanism (7) is by installing
On sliding block (57) perpendicular in the locking hole in slideway (22) direction small pressure spring and steel ball or plagiocephaly bayonet lock constitute, small pressure spring
One end is matched with locking hole bottom, the other end is matched with steel ball or plagiocephaly bayonet lock, outside the small half part of steel ball or plagiocephaly bayonet lock
Reveal sliding block (57) to match with upper lock groove (23) and lower lock groove (24) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185871.0A CN106437595B (en) | 2016-12-21 | 2016-12-21 | Automatically arm-type throw in catcher is received |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185871.0A CN106437595B (en) | 2016-12-21 | 2016-12-21 | Automatically arm-type throw in catcher is received |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437595A CN106437595A (en) | 2017-02-22 |
| CN106437595B true CN106437595B (en) | 2019-01-04 |
Family
ID=58215124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611185871.0A Active CN106437595B (en) | 2016-12-21 | 2016-12-21 | Automatically arm-type throw in catcher is received |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106437595B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204215B (en) * | 2017-12-18 | 2020-09-08 | 中国石油天然气股份有限公司 | Instrument draw gear and logging system |
| CN111379535B (en) * | 2018-12-29 | 2022-05-10 | 中国石油天然气股份有限公司 | Fishing tool |
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| CN2477826Y (en) * | 2000-12-22 | 2002-02-20 | 中国石化胜利油田有限公司河口采油厂 | Hoisting-hanging crowfoot |
| CN201187267Y (en) * | 2008-04-24 | 2009-01-28 | 李国荣 | Throwing and dragging tools of blanking plug of eccentric water distributor |
| CN102852477A (en) * | 2012-09-28 | 2013-01-02 | 牡丹江市新翔石油机械有限责任公司 | Electric salvage device |
| CN103132938A (en) * | 2012-12-21 | 2013-06-05 | 贵州航天凯山石油仪器有限公司 | Transmission device of intelligent casting-pulling instrument |
| 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 |
| CN203655197U (en) * | 2013-12-28 | 2014-06-18 | 牡丹江博实石油机械科技有限公司 | High-efficiency throwing and pulling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1832147C (en) * | 1988-02-25 | 1993-08-07 | Ферганский политехнический институт | Device for preventing string sticking |
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2016
- 2016-12-21 CN CN201611185871.0A patent/CN106437595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477826Y (en) * | 2000-12-22 | 2002-02-20 | 中国石化胜利油田有限公司河口采油厂 | Hoisting-hanging crowfoot |
| CN201187267Y (en) * | 2008-04-24 | 2009-01-28 | 李国荣 | Throwing and dragging tools of blanking plug of eccentric water distributor |
| CN102852477A (en) * | 2012-09-28 | 2013-01-02 | 牡丹江市新翔石油机械有限责任公司 | Electric salvage device |
| CN103132938A (en) * | 2012-12-21 | 2013-06-05 | 贵州航天凯山石油仪器有限公司 | Transmission device of intelligent casting-pulling instrument |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106437595A (en) | 2017-02-22 |
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Effective date of registration: 20200803 Address after: 157000 Heilongjiang District, Mudanjiang City, Dongan Province East seven road Xin'an Street Woodworking Machinery Factory Patentee after: Mudanjiang Jinheng Petroleum Machinery Technology Co.,Ltd. Address before: 157000 Heilongjiang Mudanjiang District, Dongan District, Xin'an Street East seven road Woodworking Machinery Factory Patentee before: MUDANJIANG BOSHI PETROLEUM MACHINERY TECHNOLOGY Co.,Ltd. |