CN208669247U - Oil/gas well room temperature punching device under pressure - Google Patents
Oil/gas well room temperature punching device under pressure Download PDFInfo
- Publication number
- CN208669247U CN208669247U CN201821232263.5U CN201821232263U CN208669247U CN 208669247 U CN208669247 U CN 208669247U CN 201821232263 U CN201821232263 U CN 201821232263U CN 208669247 U CN208669247 U CN 208669247U
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- Prior art keywords
- drilling rod
- catch hoop
- oil
- hangers
- lower catch
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- 238000004080 punching Methods 0.000 title claims abstract description 18
- 238000005553 drilling Methods 0.000 claims abstract description 96
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 230000036316 preload Effects 0.000 claims description 32
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to oil/gas well casing pipe hole opening engineering device technique fields, are a kind of oil/gas well room temperature punching device under pressure；It includes casing clamp cuffs, pressure relief valve and hand drilling rod；Casing clamp cuffs includes the front band and lower catch hoop of upper and lower make-up, and front band is connect with lower catch hoop by fastener；It is equipped with by-pass prot on lower catch hoop, drilling rod sealing pressure release assembly is fixedly installed on the lower catch hoop at by-pass prot, drilling rod seals the cavity being equipped in pressure release assembly in sealing state, and the utility model reasonable and compact in structure is easy to use；When drilling, drilling rod is sealed off always in drilling rod channel, is effectively isolated down-hole pressure；Pass through the fixation of casing clamp cuffs simultaneously, even if being also able to maintain fixed state in the case where acting on this entire punching device under pressure by down-hole pressure, avoiding flying out and hurt sb.'s feelings；It and using open fire, and the Manual drilling of motionless electricity will not be generated, preferably can evade falling fire risk, guarantee safety in production.
Description
Technical field
The utility model relates to oil/gas well casing pipe hole opening engineering device technique fields, are a kind of oil/gas well room temperature press and open holes dresses
It sets.
Background technique
Since the oil/gas well in Xinjiang Oilfield development time in longer five sixties can be found everywhere, old oil/gas well set even to this day
There is heavy corrosion in pipe, is badly in need of carrying out well workover measure, will cause environmental pollution and personnel to avoid old oil/gas well from blowout etc. occur
The major break down of injures and deaths；And old-fashioned well head, bypass pressure relief valve is not installed due to building initial stage, can not be controlled in well head internal pressure
It is that can not lift open wellhead assembly to carry out workover treatment in the case where system；It is therefore desirable to outer on the casing at oil and gas wellhead
Connect a pressure relief valve, first pressure release well workover again；It is directed at present and pressure relief valve, most common hand is installed on casing at oil and gas wellhead
Section is the connector using electric welding machine in jacket exterior in one connection pressure relief valve of an angle of 90 degrees welding, but in this way in oil and gas wellhead
Directly employ electric welding machine soldering sleeve mode of operation it is abnormally dangerous, need apply get angry order and two fire fighting truck scenes await orders,
Even if whom, which is such arranged, dare not also guarantee that accident does not occur.
Summary of the invention
The utility model provides a kind of oil/gas well room temperature punching device under pressure, overcomes the defects of the prior art,
It can effectively solve for old oil/gas well, welds the connector of a connection pressure relief valve in jacket exterior using electric welding machine, exists
The problem of security risk.
The technical solution of the utility model is realized by following measures: a kind of oil/gas well room temperature press and open holes dress
It sets, including casing clamp cuffs and drilling rod seal pressure release assembly；Casing clamp cuffs includes the front band and lower catch hoop of upper and lower make-up, on
Clip is connect with lower catch hoop by fastener；It is equipped with by-pass prot on lower catch hoop, is fixedly mounted on the lower catch hoop at by-pass prot
There is drilling rod to seal pressure release assembly, drilling rod seals the cavity being equipped in pressure release assembly in sealing state, and cavity is connected to simultaneously with by-pass prot
Drilling rod channel is formed, is sealed and installed with drilling rod in drilling rod channel, drilling rod one end in drilling rod channel is fixed with drill bit, bores
The other end of bar is located at outside drilling rod channel.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
The lower catch hoop inner ring surface of above-mentioned by-pass prot surrounding is equipped with sealing station, and sealing station inner face is can be with oil/gas well set
Manage matched recessed arc surface；It is recessed equipped with the sealing that can at least surround by-pass prot one week together on the top surface of sealing station
Slot.
The inner ring surface of above-mentioned front band corresponding with sealing station be equipped with support chuck, support chuck inner face be can
The matched convex arc surface of oil gas casing.
Above-mentioned drilling rod sealing pressure release assembly includes pressure relief valve and drilling rod seal box；Pressure relief valve includes valve body, on valve body
End is sealedly and fixedly connected together with the lower catch hoop at by-pass prot；Valve body lower end is fixedly installed with drilling rod seal box；Pressure relief valve
Valve inner be equipped with pressure release passage, pressure release passage is gradually connected simultaneously with by-pass prot, drilling rod seal box inner seal chamber respectively
Form drilling rod channel；Drilling rod is placed in drilling rod channel and is sealed drilling rod by drilling rod seal box.
Above-mentioned drilling rod seal box includes box body, union cap (UC), elastic sealing element and pressing sleeve；Box body is cylindrical in shape, in box body
Upside is externally provided with screw thread, and internal screw thread lower groove is equipped on the valve body at pressure release passage lower port, and cassette upper end is solid by screw thread
Dingan County is in internal screw thread lower groove；Sealing element mounting groove is equipped in the lower part of box body, in sealing element mounting groove from top to bottom
Be sequentially installed with upper baffle ring, at least one can hold elastic sealing element and lower pressure ring outside drilling rod tightly, in the downside peripheral hardware of box body
There is screw thread, and is threadably secured the screw thread pressure that is equipped with and lower pressure ring and elastic sealing element can be pressed on upper baffle ring lower end surface
Cap；Union cap (UC) interior lower end withstands on lower pressure ring bottom.
Sealing element mounting groove between above-mentioned two above elastic sealing element is built-in with interval baffle ring.
It is fixed with the internal screw thread connector sleeve that Open Side Down on lower catch hoop outer ring surface at above-mentioned by-pass prot, is threadedly coupled inside
Set, which is threadably secured, is equipped with double thread connector；The internal screw thread of opening upwards is equipped on the valve body at pressure release passage upper port
Upper groove is threadably secured on the downside of the double thread connector and is mounted in internal screw thread upper groove.
The left side of above-mentioned front band and lower catch hoop is equipped with left hangers, is respectively equipped on the left hangers of front band and lower catch hoop
Corresponding connecting hole is set with left double threaded screw in connecting hole, passes through screw thread respectively in the top and bottom of left double threaded screw
It is fixedly installed with upper left pre-load nut and lower-left pre-load nut；The lower end surface of upper left pre-load nut is against on the left hangers of front band
End, the upper surface of lower-left pre-load nut withstands on the left hangers lower end of lower catch hoop；Right extension is equipped on the right side of front band and lower catch hoop
Ear is respectively equipped with corresponding connecting hole on the right hangers of front band and lower catch hoop, right double threaded screw is set in connecting hole,
It is threadably secured respectively in the top and bottom of right double threaded screw and upper right pre-load nut and bottom right pre-load nut is installed；Upper right
The lower end surface of pre-load nut is against the right hangers upper end of front band, and the upper surface of bottom right pre-load nut withstands on the right hangers of lower catch hoop
Lower end.
Radially being mounted on the above-mentioned drilling rod positioned at outside drilling rod channel has manual rocking handle.
The utility model reasonable and compact in structure, it is easy to use；When drilling, drilling rod is sealed off always in drilling rod channel
It is interior, it is effectively isolated down-hole pressure；Pass through the fixation of casing clamp cuffs simultaneously, even if making this entire punching device under pressure by underground
In the case that pressure acts on, it is also able to maintain fixed state, avoids flying out and hurt sb.'s feelings；And using open fire will not be generated, and
The Manual drilling of motionless electricity preferably can evade falling fire risk, guarantee safety in production.
Detailed description of the invention
Attached drawing 1 is schematic diagram of main cross-sectional structure under the best embodiment of the utility model use state.
Coding in attached drawing is respectively as follows: 1 for front band, and 2 be lower catch hoop, and 3 be by-pass prot, and 4 be drilling rod, and 5 be drill bit, and 6 are
Sealing station, 7 be support chuck, and 8 be pressure relief valve, and 9 be valve body, and 10 be pressure release passage, and 11 be seal chamber, and 12 be box body, and 13 are
Upper baffle ring, 14 be elastic sealing element, and 15 be lower pressure ring, and 16 be upper rotation union cap (UC), and 17 connect for interval baffle ring, 18 for internal screw thread
Set, 19 be double thread connector, and 20 be internal screw thread upper groove, and 21 be left hangers, and 22 be left double threaded screw, and 23 pre-tighten spiral shell for upper left
Mother, 24 be lower-left pre-load nut, and 25 be right hangers, and 26 be right double threaded screw, and 27 be upper right pre-load nut, and 28 pre-tighten spiral shell for bottom right
Mother, 29 be manual rocking handle, and 30 be sealed groove, and 31 be casing.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 1 is described, such as: the positional relationship of upper and lower, left and right is the Butut according to Figure of description 1
Direction determines.
The utility model is further described below with reference to examples and drawings:
As shown in Fig. 1, which includes casing clamp cuffs and drilling rod sealing pressure release assembly；
Casing clamp cuffs includes the front band 1 and lower catch hoop 2 of upper and lower make-up, and front band 1 is connect with lower catch hoop 2 by fastener；Under
Clip 2 is equipped with by-pass prot 3, and drilling rod sealing pressure release assembly, drilling rod sealing are fixedly installed on the lower catch hoop 2 at by-pass prot 3
The cavity in sealing state is equipped in pressure release assembly, cavity is connected to by-pass prot 3 and is formed drilling rod channel, close in drilling rod channel
Envelope is equipped with drilling rod 4, and 4 one end of drilling rod in drilling rod channel is fixed with drill bit 5, and the other end of drilling rod 4 is located at drilling rod channel
Outside.In use, be fixed on casing by casing clamp cuffs first, drilling rod 4 is rotated manually, allows 5 continuous cutting casing 31 of drill bit
After the tube wall that drill bit 5 penetrates casing 31, drill bit 5 and drilling rod 4 are rearwards moved back, drilling rod is closed and seals pressure release assembly, room temperature
Oil/gas well press and open holes operation is completed；Wherein, drilling rod 4 is sealed in always in drilling rod channel, with one seal isolation of holding in well
State；Pass through the fixation of casing clamp cuffs simultaneously, even if act on this entire punching device under pressure by down-hole pressure
Under, it is also able to maintain fixed state, avoids flying out and hurt sb.'s feelings；In the state of guaranteeing safety, using will not generate open fire, without
The Manual drilling for moving electricity preferably can evade falling fire risk, guarantee safety in production.
Above-mentioned oil/gas well room temperature punching device under pressure can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 1, sealing station 6 is equipped on 2 inner ring surface of lower catch hoop of 3 surrounding of by-pass prot, 6 inner face of sealing station is
It can be with the matched recessed arc surface of oil gas casing 31；Being equipped on the top surface of sealing station 6 at least together can be around side
3 one weeks sealed grooves of through-hole 30.In use, can be by way of increasing sealing element in sealed groove 30, further to increase
Add the leakproofness at by-pass prot 3 between casing clamp cuffs and casing 31, after guaranteeing that drill bit 5 drills through casing 31, passes through sealing
It is effectively isolated down-hole pressure, further increases the safety of operation.
As shown in Fig. 1, the inner ring surface of front band 1 corresponding with sealing station 6 is equipped with support chuck 7, support chuck 7
Inner face is being capable of the matched convex arc surface of oil gas casing 31.Since entire boring procedure is bored using Manual drilling
Bar 4 can generate vibration, the branch that support chuck 7 can not only form stable fixing, while add with sealing station 6 to casing clamp cuffs
Chuck 7 is supportted, it is small with the contact surface of casing 31, it can also reduce the abrasion generated due to vibration to casing 31.
As shown in Fig. 1, drilling rod sealing pressure release assembly includes pressure relief valve 8 and drilling rod seal box；Pressure relief valve 8 includes valve
Lower catch hoop 2 at body 9,9 upper end of valve body and by-pass prot 3 is sealedly and fixedly connected together；It is close that 9 lower end of valve body is fixedly installed with drilling rod
Jacket；Pressure release passage 10 is equipped with inside the valve body 9 of pressure relief valve 8, pressure release passage 10 is respectively and in by-pass prot 3, drilling rod seal box
Portion's seal chamber 11 is gradually connected and forms drilling rod channel；Drilling rod 4 is placed in drilling rod channel and passes through drilling rod seal box for drilling rod 4
Sealing.Wherein, pressure relief valve 8 uses conventionally known pressure relief valve；Drilling rod 4 is sealed by drilling rod seal box, to guarantee drilling rod
Channel is isolated with extraneous.
As shown in Fig. 1, drilling rod seal box includes box body 12, union cap (UC) 16, elastic sealing element 14 and pressing sleeve；Box body 12
It is cylindrical in shape, is externally provided with screw thread in the upside of box body 12, it is recessed that internal screw thread is equipped on the valve body 9 at 10 lower port of pressure release passage
Slot, 12 upper end of box body, which is threadably secured, to be mounted in internal screw thread lower groove；Sealing element mounting groove is equipped in the lower part of box body 12,
From top to bottom be sequentially installed in sealing element mounting groove upper baffle ring 13, at least one can hold the elastic packing outside drilling rod 4 tightly
Part 14 and lower pressure ring 15 are externally provided with screw thread in the downside of box body 12, and are threadably secured that be equipped with can be by lower pressure ring 15 and bullet
Property sealing element 14 is pressed on the union cap (UC) 16 on 13 lower end surface of upper baffle ring；16 interior lower end of union cap (UC) withstands on lower 15 bottom of pressure ring
Portion.Wherein, drilling rod seal box seals drilling rod 4 by the elastic sealing element 14 in box body 12, the conduct of elastic sealing element 14 itself
Elastic component has compressibility, gradually same by what is pressed on elastic sealing element 14 by lower pressure ring 15 by upper rotation union cap (UC) 16
When, elastic sealing element 14 inwardly encases drilling rod 4, realizes the dynamic sealing to drilling rod 4, high sealing reliability；Spiral shell can further be passed through
Line pressure cap 16 adjusts its leakproofness, realizes that sealing is controllable, long service life.
To further increase sealing effect, as shown in Fig. 1, the sealing element peace between more than two elastic sealing elements 14
Tankage is built-in with interval baffle ring 17.
To be easy to disassemble, as shown in Fig. 1, it is fixed on 2 outer ring surface of lower catch hoop at by-pass prot 3 in Open Side Down
Threaded connecting sleeve 18 is threadably secured in interior threaded connecting sleeve 18 and is equipped with double thread connector 19；In 10 upper end of pressure release passage
Valve body 9 at mouthful is equipped with the internal screw thread upper groove 20 of opening upwards, and the downside of the double thread connector 19 is threadably secured
It is mounted in internal screw thread upper groove 20.
To be easy to disassemble, as shown in Fig. 1, it is equipped with left hangers 21 in the left side of front band 1 and lower catch hoop 2, in front band 1
It is respectively equipped with corresponding connecting hole on the left hangers 21 of lower catch hoop 2, left double threaded screw 22 is set in connecting hole, left double
The top and bottom of head screw rod 22 are threadably secured respectively is equipped with upper left pre-load nut 23 and lower-left pre-load nut 24；Upper left
The lower end surface of pre-load nut 23 is against 21 upper end of left hangers of front band 1, and the upper surface of lower-left pre-load nut 24 withstands on lower catch hoop 2
21 lower end of left hangers；It is equipped with right hangers 25 on the right side of front band 1 and lower catch hoop 2, in the right extension of front band 1 and lower catch hoop 2
It is respectively equipped with corresponding connecting hole on ear 25, right double threaded screw 26 is set in connecting hole, in the upper end of right double threaded screw 26
It is threadably secured respectively with lower end and upper right pre-load nut 27 and bottom right pre-load nut 28 is installed；Under upper right pre-load nut 27
End face is against 25 upper end of right hangers of front band 1, and the upper surface of bottom right pre-load nut 28 is withstood under the right hangers 25 of lower catch hoop 2
End.
To be manually operated convenient for field personnel, as shown in Fig. 1, radially limited on the drilling rod 4 outside drilling rod channel
Position is equipped with manual rocking handle 29.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (10)
1. a kind of oil/gas well room temperature punching device under pressure, it is characterised in that seal pressure release assembly including casing clamp cuffs and drilling rod；
Casing clamp cuffs includes the front band and lower catch hoop of upper and lower make-up, and front band is connect with lower catch hoop by fastener；In lower catch hoop
It is equipped with by-pass prot, drilling rod sealing pressure release assembly is fixedly installed on the lower catch hoop at by-pass prot, drilling rod seals pressure release assembly
The interior cavity being equipped in sealing state, cavity are connected to and are formed with by-pass prot drilling rod channel, be sealed and installed in drilling rod channel
Drilling rod, drilling rod one end in drilling rod channel are fixed with drill bit, and the other end of drilling rod is located at outside drilling rod channel.
2. oil/gas well room temperature punching device under pressure according to claim 1, it is characterised in that the lower catch hoop of by-pass prot surrounding
Inner ring surface is equipped with sealing station, and sealing station inner face is can be with the matched recessed arc surface of oil gas casing；In sealing station
Top surface be equipped at least together can surround by-pass prot one week sealed groove.
3. oil/gas well room temperature punching device under pressure according to claim 2, it is characterised in that upper card corresponding with sealing station
The inner ring surface of hoop be equipped with support chuck, support chuck inner face be being capable of the matched convex arc surface of oil gas casing.
4. oil/gas well room temperature punching device under pressure according to claim 1 or 2 or 3, it is characterised in that drilling rod seals pressure release
Assembly includes pressure relief valve and drilling rod seal box；Pressure relief valve includes valve body, and the lower catch hoop at valve body upper end and by-pass prot seals
It is fixed together；Valve body lower end is fixedly installed with drilling rod seal box；The valve inner of pressure relief valve is equipped with pressure release passage, lets out
Pressure passageway is gradually connected with by-pass prot, drilling rod seal box inner seal chamber respectively and forms drilling rod channel；Drilling rod is placed in drilling rod
It is sealed in channel and by drilling rod seal box by drilling rod.
5. oil/gas well room temperature punching device under pressure according to claim 4, it is characterised in that drilling rod seal box include box body,
Union cap (UC), elastic sealing element and pressing sleeve；Box body is cylindrical in shape, and screw thread is externally provided on the upside of box body, in pressure release passage lower port
The valve body at place is equipped with internal screw thread lower groove, and cassette upper end, which is threadably secured, to be mounted in internal screw thread lower groove；Under box body
It is equipped with sealing element mounting groove in portion, is from top to bottom sequentially installed with that upper baffle ring, at least one can hold tightly in sealing element mounting groove
Elastic sealing element and lower pressure ring outside drilling rod, are externally provided with screw thread on the downside of box body, and are threadably secured and are equipped with and can incite somebody to action
Lower pressure ring and elastic sealing element are pressed on the union cap (UC) on upper baffle ring lower end surface；Union cap (UC) interior lower end withstands on lower pressure ring bottom
Portion.
6. oil/gas well room temperature punching device under pressure according to claim 5, it is characterised in that more than two elastic packings
Sealing element mounting groove between part is built-in with interval baffle ring.
7. oil/gas well room temperature punching device under pressure according to claim 4, it is characterised in that outside the lower catch hoop at by-pass prot
It is fixed with the internal screw thread connector sleeve that Open Side Down on anchor ring, is threadably secured in interior threaded connecting sleeve and double thread is installed connects
Head；The internal screw thread upper groove of opening upwards, the downside of the double thread connector are equipped on the valve body at pressure release passage upper port
It is threadably secured and is mounted in internal screw thread upper groove.
8. oil/gas well room temperature punching device under pressure according to claim 5 or 6, it is characterised in that the lower catch hoop at by-pass prot
It is fixed with the internal screw thread connector sleeve that Open Side Down on outer ring surface, is threadably secured in interior threaded connecting sleeve and double thread is installed connects
Head；The internal screw thread upper groove of opening upwards, the downside of the double thread connector are equipped on the valve body at pressure release passage upper port
It is threadably secured and is mounted in internal screw thread upper groove.
9. oil/gas well room temperature punching device under pressure described according to claim 1 or 2 or 3 or 5 or 6 or 7, it is characterised in that upper card
The left side of hoop and lower catch hoop is equipped with left hangers, is respectively equipped with corresponding connecting hole on the left hangers of front band and lower catch hoop,
It is set with left double threaded screw in connecting hole, is threadably secured that be equipped with upper left pre- respectively in the top and bottom of left double threaded screw
Tight nut and lower-left pre-load nut；The lower end surface of upper left pre-load nut is against the left hangers upper end of front band, lower-left pre-load nut
Upper surface withstand on the left hangers lower end of lower catch hoop；It is equipped with right hangers on the right side of front band and lower catch hoop, in front band under
It is respectively equipped with corresponding connecting hole on the right hangers of clip, right double threaded screw is set in connecting hole, in right double threaded screw
Top and bottom are threadably secured respectively is equipped with upper right pre-load nut and bottom right pre-load nut；The lower end of upper right pre-load nut
Face is against the right hangers upper end of front band, and the upper surface of bottom right pre-load nut withstands on the right hangers lower end of lower catch hoop；Or/and position
There is manual rocking handle in being radially mounted on the drilling rod outside drilling rod channel.
10. oil/gas well room temperature punching device under pressure according to claim 8, it is characterised in that a left side for front band and lower catch hoop
Side is equipped with left hangers, is respectively equipped with corresponding connecting hole on the left hangers of front band and lower catch hoop, is set in connecting hole
Left double threaded screw is threadably secured respectively in the top and bottom of left double threaded screw and is equipped with upper left pre-load nut and lower-left is pre-
Tight nut；The lower end surface of upper left pre-load nut is against the left hangers upper end of front band, and the upper surface of lower-left pre-load nut is withstood on down
The left hangers lower end of clip；It is equipped with right hangers on the right side of front band and lower catch hoop, on the right hangers of front band and lower catch hoop
It is respectively equipped with corresponding connecting hole, right double threaded screw is set in connecting hole, is distinguished in the top and bottom of right double threaded screw
It is threadably secured and upper right pre-load nut and bottom right pre-load nut is installed；The lower end surface of upper right pre-load nut is against front band
Right hangers upper end, the upper surface of bottom right pre-load nut withstand on the right hangers lower end of lower catch hoop, or/and, outside drilling rod channel
Radially being mounted on drilling rod has manual rocking handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821232263.5U CN208669247U (en) | 2018-08-01 | 2018-08-01 | Oil/gas well room temperature punching device under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821232263.5U CN208669247U (en) | 2018-08-01 | 2018-08-01 | Oil/gas well room temperature punching device under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669247U true CN208669247U (en) | 2019-03-29 |
Family
ID=65832203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821232263.5U Expired - Fee Related CN208669247U (en) | 2018-08-01 | 2018-08-01 | Oil/gas well room temperature punching device under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208669247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198053A (en) * | 2021-12-13 | 2022-03-18 | 松原市云生石油技术服务有限公司 | Hole opening device with pressure for wellhead valve flashboard |
-
2018
- 2018-08-01 CN CN201821232263.5U patent/CN208669247U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198053A (en) * | 2021-12-13 | 2022-03-18 | 松原市云生石油技术服务有限公司 | Hole opening device with pressure for wellhead valve flashboard |
| CN114198053B (en) * | 2021-12-13 | 2023-06-20 | 松原市云生石油技术服务有限公司 | Wellhead valve flashboard pressurized perforating device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 |