CN106468149A - A kind of salvaging structure - Google Patents
A kind of salvaging structure Download PDFInfo
- Publication number
- CN106468149A CN106468149A CN201510515458.5A CN201510515458A CN106468149A CN 106468149 A CN106468149 A CN 106468149A CN 201510515458 A CN201510515458 A CN 201510515458A CN 106468149 A CN106468149 A CN 106468149A
- Authority
- CN
- China
- Prior art keywords
- ball seat
- hole
- salvaging
- junk mill
- box cupling
- 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
Landscapes
- Crushing And Grinding (AREA)
Abstract
The present invention relates to a kind of salvage structure, including：Ball seat, is configured with the first bellmouth communicating with each other and first through hole from top to bottom successively in the inside of described ball seat, and the position be connected in described first bellmouth and with described first through hole is configured with shoulder；Junk mill, has installation cavity in the internal structure of described junk mill；And part is arranged on the described driver part installing intracavity, wherein, under salvaging state, when the fishing head of described junk mill extend in described first through hole and after with described shoulder phase clamping, rotated according to first direction by making described driver part, described ball seat is salvaged well.This salvaging structure has the advantages that to shorten construction period, simplifies working procedure, avoids bit bouncing, the generation of bit freezing phenomenon, and also has the advantages that construction cost is low and reduces the number of times that makes a trip.
Description
Technical field
The present invention relates to petroleum drilling technology field, more particularly, to a kind of salvaging structure.
Background technology
At present, existing salvaging structure is generally drilling leakage or cavey formation and after carrying out reaming hole, using expansion
Corrugated tube connects the predeterminated position that ball seat is lowered into shaft bottom.Then, carry out testing envelope, play out running tool after back-off.
However, after carrying out hydraulic expansion, can there is ovality in this expansion corrugated tube.Accordingly, it would be desirable to utilize mechanical tube
Finishing is circular.Meanwhile, milling transit joint, box cupling and ball seat.In the process, the remnants after milling
Partly easily fall into down-hole or be stuck in the borehole wall, lead to bit bouncing or the generation of bit freezing phenomenon, thus construction week can be extended
Phase.
Content of the invention
For the problems referred to above, a kind of salvaging structure is proposed according to the present invention, including：Ball seat, in described ball seat
Inside be configured with the first bellmouth communicating with each other and first through hole from top to bottom successively, in described first taper
Hole and the position being connected with described first through hole are configured with shoulder；Junk mill, has in the internal structure of described junk mill
Installation cavity；And part is arranged on the described driver part installing intracavity, wherein, under salvaging state, work as institute
State junk mill fishing head extend in described first through hole and with described shoulder phase clamping after, by making described drive
Dynamic component is rotated according to first direction, and described ball seat is salvaged well.As can be seen here, in the application
Ball seat salvaged go out well when, only need to connect as one with junk mill, by above carrying junk mill, just can be by this ball seat one
Rise and salvage well.So, just reduce milling amount, simplify working procedure, meanwhile, after also avoiding milling
Ball seat and nubbin fall into down-hole, the generation causing bit freezing and suppressing the risk of pump.
Preferably, be also configured with the second through hole being connected with described first through hole in the inside of described ball seat,
Described first through hole and the position being connected with described second through hole be configured with so that pitching set second
Bellmouth.Due to the setting of this second bellmouth, the pitching enabling to be put into can rest on this second cone
Shape in the hole, thus reach the purpose of closure the second through hole.
Preferably, described junk mill includes internal structure and having the connecting portion of described installation cavity and is connected with described connecting portion
The milling portion connecing, wherein, is configured with transition circle cambered surface between the diapire and perisporium in described milling portion.This is excessive
The setting of arc surface, it can be avoided that this milling portion is in the internal perisporium of milling box cupling, due to reaching not with corner angle
To the requirement of milling, or even the internal perisporium of box cupling can be caused with the drawbacks of damage.
Preferably, described junk mill also includes fishing head, described fishing head includes the salvaging being arranged on described diapire
Head body and the seeker being connected with described fishing head body, wherein, in the periphery wall of described fishing head body
Upper circumferentially spaced formula is provided with multiple first and crosses chute, and on the outer wall of described seeker, circumferentially spaced formula is provided with
Multiple second cross chute.The setting of chute crossed by this first mistake chute and second, is not only beneficial to seeker and salvaging
Head body smoothly enters in first through hole, meanwhile, also avoid this fishing head body and seeker be subject to radially to
Interior extruding force is excessive, leads to the drawbacks of be damaged.
Preferably, each described first chute excessively is all connected with corresponding described second chute excessively.So, when need
When pressurizeing to pitching or need to rinse, then need to inject liquid from ground to down-hole, by making each first excessively stream
Groove is all crossed chute with corresponding second and is connected, thus ensureing that the liquid being injected into can pass through, it is to avoid quilt
The liquid of injection occurs chance stifled.
Preferably, described salvaging structure is also included with described ball seat according to connecing that second direction is threadeded
Hoop.
Preferably, compartment is provided with multiple flowing holes on described diapire.Pressurize to pitching when needing or need to rush
When washing the sand body within ball seat, by injecting liquid from ground to down-hole, this liquid will flow from each flowing hole
Go out, to reach the purpose washed away.
Preferably, slidingtype is arranged on the described junk mill of the inside of described box cupling, wherein, when described seeker is stretched
Enter in described first through hole after being interference fit to described milling portion with described first bellmouth, by making
State driver part drive described junk mill carry out rotating according to described first direction descending, so that described ball seat is gradually
Disengage with described box cupling.
Preferably, driving described junk mill to carry out rotating descending mistake according to described first direction in described driver part
Cheng Zhong, the inner circumferential at the position that is box cupling described in the continuous milling of perisporium and being connected with described ball seat in described milling portion
Wall, so that the internal diameter of described box cupling is more than the external diameter of described ball seat.
Preferably, upper carry described junk mill when, the diapire phase clamping of the upper wall of described seeker and described shoulder with
Described ball seat is salvaged well.
Preferably, being circumferentially configured with rounding face on the upper edge of described ball seat.The setting in this rounding face, conveniently should
Well salvaged by ball seat, it is to avoid meet card.
Preferably, described ball seat upper port be in the outer of the position that described ball seat is connected with described box cupling
Perisporium is provided with annular seal groove, is provided with lip ring in described annular seal groove.This lip ring
Setting, the effect of sealing can be played, it is to avoid outside sand body or liquid enter into the inside of ball seat, impact
The salvaging of ball seat.
According to the present invention, this salvaging structure has shortening construction period, simplifies working procedure, avoids bit bouncing, card
The advantage boring the generation of phenomenon, and also have the advantages that construction cost is low and reduces the number of times that makes a trip.
Brief description
Hereinafter will be based on embodiment and refer to the attached drawing is being described in more detail to the present invention.In in figure：
Fig. 1 is the overall structure diagram of the salvaging structure of embodiments herein.
Fig. 2 is the overall structure diagram of the salvaging ball seat of the salvaging structure of embodiments herein.
Fig. 3 is the overall structure diagram of the junk mill of salvaging structure of embodiments herein.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to actual scaling.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, Figure 2 and Figure 3, Fig. 1 show schematically show this salvaging structure 100 include ball seat 1,
Junk mill 2 and driver part 3.
In embodiments herein, it is configured with, in the inside of ball seat 1, first communicating with each other from top to bottom successively
Bellmouth 11 and first through hole 12, the position being connected with first through hole 12 in this first bellmouth 11 is constructed
There is shoulder 13.
In embodiments herein, this ball seat 1 can be fabricated by by the larger material of easy brill, proportion.For example
Can be fabricated by by cast iron quality.So, just can prevent this ball seat 1 from surprisingly entering well, float in well and cause well
The generation of the complicated risk in bottom.In addition, the ball seat 1 being manufactured into using the material possessing above-mentioned characteristic is being salvaged
After well, still reusable, thus, greatly reduce construction cost.
In embodiments herein, the internal structure of this junk mill 2 has installation cavity 211.Wherein, in this installation
The internal perisporium in chamber 211 is provided with external screw thread or female thread.Easy to understand, the internal perisporium of this installation cavity 211 is
No external screw thread or the female thread of being provided with is then according to driver part 3 as described below with matching.
The part of this driver part 3 is arranged in this installation cavity 211.Specifically, this driver part 3 can be with this
Installation cavity 211 is threaded, thus facilitating installation and the dismounting of this driver part 3.So, just achieve
This driver part 3 is fixedly connected with junk mill 2.Wherein, under salvaging state, when the fishing head 23 of junk mill 2
Extend in first through hole 12 and with shoulder 13 phase clamping after, by making this driver part 3 according to first party
To being rotated, this ball seat 1 is salvaged well.Wherein, this first direction can be for forward or backwards.At this
It is positive in the embodiment of application.As can be seen here, the ball seat 1 in the application salvaged go out well when, only need to be with
Junk mill 2 connects as one, and by above carrying junk mill 2, just this ball seat 1 can be salvaged well together.So, just
Reduce milling amount, simplify working procedure, meanwhile, also avoid the ball seat 1 after milling and nubbin to fall
Enter down-hole, cause bit freezing or suppress pump.
In embodiments herein, this driver part 3 includes the brill that part is arranged in described installation cavity 211
Bar (not shown) and the driving means (not shown) being connected with this drilling rod.
As shown in Fig. 2 in a preferred embodiment, it is also configured with and first through hole in the inside of ball seat 1
12 the second through holes 14 being connected, the position being connected with the second through hole 14 in first through hole 12 is configured with use
So that the second bellmouth 15 that pitching 4 sets.Specifically, due to the setting of this second bellmouth 15, energy
Enough the pitching 4 being put into is rested in this second bellmouth 15, thus reaching closure the second through hole
14 purpose.In addition, injecting liquid from ground to down-hole, because this pitching 4 blocks this second through hole 14,
Thus can reach to the purpose of pitching 4 pressurization.Thus, it is that ensuing underground construction is prepared.
As shown in figure 3, in a preferred embodiment, this junk mill 2 includes internal structure above-mentioned installation cavity
211 connecting portion 21 and the milling portion 22 being connected with this connecting portion 21, wherein, at the bottom in milling portion 22
It is configured with transition circle cambered surface 223 between wall 221 and perisporium 222.Wherein, this connecting portion 21 is substantially cylindrical.
The external diameter of this connecting portion 21 is less than the external diameter in this milling portion 22, the external diameter in this milling portion 22 be slightly larger than with as follows
The internal diameter of described box cupling 5.So, just constantly can be rotated in a circumferential direction by this milling portion 22, from
And reach the effect of the internal perisporium of milling box cupling 5, further, reach the purpose of the internal diameter increasing this box cupling 5.
In addition, the setting in this excessive circular face 223, it can be avoided that this milling portion 22 is in milling box cupling 5
During perisporium, due to not reaching the requirement of milling with corner angle, or even the internal perisporium of box cupling 5 can be caused damage
The drawbacks of.
In a preferred embodiment, this junk mill 2 also includes fishing head 23, and this fishing head 23 includes arranging
Fishing head body 231 on diapire 221 and the seeker 232 being connected with this fishing head body 231, its
In, on the periphery wall of fishing head body 231, circumferentially spaced formula is provided with multiple first and crosses chute 233, is drawing
On the outer wall of top guide 232, circumferentially spaced formula is provided with multiple second and crosses chute 234.In embodiments herein,
This fishing head body 231 is generally cylindrical, and the decentralization end of this seeker 232 is configured to taper.So, convenient
This seeker 232 is guided can successfully to extend in first through hole 12.
In addition, this first crosses the setting that chute 234 crossed by chute 233 and second, this fishing head body 231 with
And seeker 232 is subject to radially inner extruding force (as this seeker 232 is extending into first through hole 12
During) when, enable to this fishing head body 231 and seeker 232 all can occur bullet radially inward
Property deformation, after this fishing head body 231 and seeker 232 protrude fully in first through hole 12, in bullet
Property restoring force in the presence of, can radially expand until return to original shape again.So, not only sharp
Smoothly enter in first through hole 12 in seeker 232 and fishing head body 231, meanwhile, also avoid this
Fishing head body 231 and seeker 232 are subject to radially inner extruding force excessive, lead to the drawbacks of be damaged.
As shown in figure 3, in a preferred embodiment, this each first crosses chute 233 all with corresponding second
Cross chute 234 to be connected.So, when pressurizeing to pitching 4 or need to rinse, then need from ground to well
Lower injection liquid, all crosses chute 234 with corresponding second by making each first to cross chute 233 and is connected, from
And ensure that the liquid being injected into can pass through, it is to avoid there is the drawbacks of meet stifled in the liquid being injected into.
In a preferred embodiment, this salvaging structure 100 also includes carrying out according to second direction with ball seat 1
Threaded box cupling 5.This second direction should be contrary with above-mentioned first direction, and this second direction can be forward direction
Or reversely.In embodiments herein, above-mentioned first direction is forward direction, therefore this second direction is reverse.
In addition, by the way of threaded, it is easy to installation and the dismounting of this box cupling 5 and ball seat 1.And,
After junk mill 2 and ball seat 1 achieve a fixed connection, drive junk mill 2 circumferentially rotatable descending by driver part 3
When, also indirectly drive ball seat 1 to carry out rotating in a circumferential direction descending, and gradually disengage with box cupling 5.
As shown in Fig. 2 in a preferred embodiment, on diapire 221, compartment is provided with multiple flowing holes
224.Pressurize to pitching 4 when needing or need rinse ball seat 1 within sand body when, by from ground to down-hole
Injection liquid, this liquid will flow out from each flowing hole 224, to reach the purpose washed away.
As shown in Figure 1, Figure 2 and Figure 3, in a preferred embodiment, slidingtype is arranged on box cupling 5
Internal junk mill 2, wherein, when seeker 232 extend in first through hole 12 to this milling portion 22 and first
After bellmouth 11 is interference fit, junk mill 2 is driven to be revolved according to first direction by making driver part 3
Turn descending, so that ball seat 1 is gradually disengaged with box cupling 5.Specifically, when this junk mill 2 is along the inside of box cupling 5
Be admitted to down-hole, to the seeker 232 of junk mill 2 extend in first through hole 12 when, continued by this junk mill 2
Continuous circumferentially rotatable descending.When consolidating on circumferential and axial is realized with the first bellmouth 11 in the bottom in milling portion 22
After fixed connection, junk mill 2 is driven to be rotated according to first direction by driver part 3, thus indirectly driving
Ball seat 1 is also rotated according to first direction.Further so that this ball seat 1 unscrews disengagement with box cupling 5.
In a preferred embodiment, under driver part 3 drives junk mill 2 to be rotated according to first direction
In the process of row, in the position that is perisporium continuous milling box cupling 5 and being connected with ball seat 1 in milling portion 22
Perisporium, so that the internal diameter of box cupling 5 is more than the external diameter of ball seat 1.When above-mentioned junk mill 2 and ball seat 1 are realized fixing
After connection, descending by making this junk mill 2 rotate, so that milling portion 22 moves down into corresponding box cupling 5 and ball
The position that seat 1 is connected.Thus milling is carried out to the internal perisporium at this, when the internal diameter of this box cupling 5 is more than ball seat
After 1 external diameter, stop to milling herein.Further, convenient this ball seat 1 of taking-up, it is to avoid carry mill upper
During footwear 2 and ball seat 1, occur to meet the problem of card, thus the drawbacks of cause ball seat 1 cannot take out.
In a preferred embodiment, upper carry junk mill 2 when, the upper wall 235 of this seeker 232 and shoulder
13 diapire 131 phase clamping is to salvage well by ball seat 1.Because seeker 232 is stretching into first through hole 12
When interior, can shrink radially inward.After in this seeker 232 is completely into this first through hole 12, meeting exists
In the presence of the elastic restoring force of itself, gradually radially expansion is original before being uncompressed up to returning to
State.Now, the external diameter of this seeker 232 is more than the upper end bore of first through hole 12.Carry this junk mill 2 upper
When, the diapire 131 phase clamping of upper wall 235 and shoulder 13 can be made, so that this junk mill 2 and ball seat 1
Connect as one, well salvaged by this ball seat 1 the most at last.As can be seen here, present invention, avoiding the mill to ball seat 1
Milling, simplifies working procedure, shortens construction period, it is to avoid the nubbin after milling is fallen into shaft bottom or is stuck in
The borehole wall, leads to bit bouncing, bit freezing impact subsequent construction.Meanwhile, also avoid because under enter flat-bottom grind shoes and need increase
Make a trip for one time, thus, reduce construction cost.
In a preferred embodiment, circumferentially it is configured with rounding face 16 on the upper edge of ball seat 1.This rounding face
16 setting, facilitates this ball seat 1 to salvage well, it is to avoid produces and meets card problem.
In a preferred embodiment, ball seat 1 upper port be in what ball seat 1 was connected with box cupling 5
The periphery wall at position is provided with cannelure 17, is provided with lip ring 18 in this cannelure 17.This annular
The setting of sealing member 18, can play the effect of sealing, it is to avoid outside sand body or liquid enter into ball seat 1
Inside, impact ball seat 1 salvaging.
In sum, this salvaging structure 100 have shortening construction period, simplify working procedure, avoid bit bouncing,
The advantage of the generation of bit freezing phenomenon, and also have the advantages that construction cost is low and reduces the number of times that makes a trip.
Although by reference to preferred embodiment, invention has been described, without departing from the scope of the present invention
In the case of, it can be carried out with various improvement and part therein can be replaced with equivalent.Especially, only
Otherwise there is structural hazard, the every technical characteristic being previously mentioned in each embodiment all can combine in any way
Come.The invention is not limited in specific embodiment disclosed herein, but include falling within the scope of the appended claims
All technical schemes.
Claims (12)
1. a kind of salvaging structure, including：
Ball seat, is configured with, in the inside of described ball seat, the first bellmouth and first communicating with each other from top to bottom successively
Through hole, the position be connected in described first bellmouth and with described first through hole is configured with shoulder；
Junk mill, has installation cavity in the internal structure of described junk mill；And
Part is arranged on the described driver part installing intracavity, wherein, under salvaging state, when described junk mill
Fishing head extend in described first through hole and with described shoulder phase clamping after, by make described driver part by
Rotated according to first direction, described ball seat is salvaged well.
2. salvaging structure according to claim 1 is it is characterised in that also construct in the inside of described ball seat
There is the second through hole being connected with described first through hole, be connected in described first through hole with described second through hole
Position be configured with so that the second bellmouth of setting of pitching.
3. salvaging structure according to claim 1 is it is characterised in that described junk mill includes internal structure has
The connecting portion of described installation cavity and the milling portion being connected with described connecting portion, wherein, at the bottom in described milling portion
It is configured with transition circle cambered surface between wall and perisporium.
4. according to claim 3 salvaging structure it is characterised in that described junk mill also includes fishing head,
Described fishing head is included the fishing head body being arranged on described diapire and is connected with described fishing head body
Seeker, wherein, on the periphery wall of described fishing head body, circumferentially spaced formula is provided with multiple first and crosses chute,
On the outer wall of described seeker, circumferentially spaced formula is provided with multiple second and crosses chute.
5. salvaging structure according to claim 4 it is characterised in that each described first cross chute all with phase
Described second answering crosses chute and is connected.
6. salvaging structure according to claim 5 is it is characterised in that described salvaging structure also includes and institute
State ball seat and carry out threaded box cupling according to second direction.
7. according to claim 6 salvaging structure it is characterised in that on described diapire compartment be provided with
Multiple flowing holes.
8. salvaging structure according to claim 6 is it is characterised in that slidingtype is arranged on described box cupling
Internal described junk mill, wherein, when described seeker extend in described first through hole to described milling portion and institute
State after the first bellmouth is interference fit, drive described junk mill according to described first by making described driver part
Direction carries out rotating descending, so that described ball seat is gradually disengaged with described box cupling.
9. salvaging structure according to claim 8 it is characterised in that drive described in described driver part
Junk mill according to described first direction carry out rotating descending during, described in the continuous milling of perisporium in described milling portion
Box cupling and the internal perisporium at position that is connected with described ball seat so that the internal diameter of described box cupling is more than described ball
The external diameter of seat.
10. according to claim 9 salvaging structure it is characterised in that upper carry described junk mill when, institute
State the upper wall of seeker and the diapire phase clamping of described shoulder so that described ball seat is salvaged well.
11. structures of salvaging according to any one of claim 1 to 10 are it is characterised in that in described ball
The upper edge of seat is circumferentially configured with rounding face.
12. according to claim 6 salvage structures it is characterised in that upper port in described ball seat
The periphery wall being in the position that described ball seat is connected with described box cupling is provided with annular seal groove, in described annular
Lip ring is installed in seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515458.5A CN106468149B (en) | 2015-08-20 | 2015-08-20 | A kind of salvaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515458.5A CN106468149B (en) | 2015-08-20 | 2015-08-20 | A kind of salvaging structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106468149A true CN106468149A (en) | 2017-03-01 |
| CN106468149B CN106468149B (en) | 2019-01-11 |
Family
ID=58229071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510515458.5A Active CN106468149B (en) | 2015-08-20 | 2015-08-20 | A kind of salvaging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106468149B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286420A (en) * | 2017-01-09 | 2018-07-17 | 中国石油化工股份有限公司 | A kind of caulking tube string and oil/gas well blocking method |
| CN109252823A (en) * | 2018-09-20 | 2019-01-22 | 中国石油天然气股份有限公司 | Multi-wing grind shoe synchronous grabbing mechanism and using method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1469493A (en) * | 1921-10-29 | 1923-10-02 | Charles H Brown | Fishing tool |
| US4545432A (en) * | 1982-12-16 | 1985-10-08 | Appleton Robert P | Device for retrieving objects from wells |
| RU57796U1 (en) * | 2006-05-06 | 2006-10-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Downhole Catcher |
| CN201318142Y (en) * | 2008-12-17 | 2009-09-30 | 新疆华油油气工程有限公司 | Milling and fishing integrated tool |
| CN201448080U (en) * | 2009-07-11 | 2010-05-05 | 东营市铁人石油机具有限公司 | Wash-over milling fishing integrated tool |
| CN202000943U (en) * | 2010-12-10 | 2011-10-05 | 中国石油化工股份有限公司 | Spirally-guided retrievable salvaging spear |
| CN202689984U (en) * | 2012-07-20 | 2013-01-23 | 中国石油化工股份有限公司 | Intercommunicating and fishing integrated tool |
| CN103452514A (en) * | 2013-09-13 | 2013-12-18 | 中国海洋石油总公司 | Wide-range catch socket |
| CN203584354U (en) * | 2013-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Controllable lifting and releasing fishing spear |
| CN203905877U (en) * | 2014-04-04 | 2014-10-29 | 河南能源化工集团研究院有限公司 | Coal mine concentric circle bell-mouthed fishing drilling tool |
-
2015
- 2015-08-20 CN CN201510515458.5A patent/CN106468149B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1469493A (en) * | 1921-10-29 | 1923-10-02 | Charles H Brown | Fishing tool |
| US4545432A (en) * | 1982-12-16 | 1985-10-08 | Appleton Robert P | Device for retrieving objects from wells |
| RU57796U1 (en) * | 2006-05-06 | 2006-10-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Downhole Catcher |
| CN201318142Y (en) * | 2008-12-17 | 2009-09-30 | 新疆华油油气工程有限公司 | Milling and fishing integrated tool |
| CN201448080U (en) * | 2009-07-11 | 2010-05-05 | 东营市铁人石油机具有限公司 | Wash-over milling fishing integrated tool |
| CN202000943U (en) * | 2010-12-10 | 2011-10-05 | 中国石油化工股份有限公司 | Spirally-guided retrievable salvaging spear |
| CN202689984U (en) * | 2012-07-20 | 2013-01-23 | 中国石油化工股份有限公司 | Intercommunicating and fishing integrated tool |
| CN103452514A (en) * | 2013-09-13 | 2013-12-18 | 中国海洋石油总公司 | Wide-range catch socket |
| CN203584354U (en) * | 2013-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Controllable lifting and releasing fishing spear |
| CN203905877U (en) * | 2014-04-04 | 2014-10-29 | 河南能源化工集团研究院有限公司 | Coal mine concentric circle bell-mouthed fishing drilling tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286420A (en) * | 2017-01-09 | 2018-07-17 | 中国石油化工股份有限公司 | A kind of caulking tube string and oil/gas well blocking method |
| CN109252823A (en) * | 2018-09-20 | 2019-01-22 | 中国石油天然气股份有限公司 | Multi-wing grind shoe synchronous grabbing mechanism and using method |
| CN109252823B (en) * | 2018-09-20 | 2023-11-28 | 中国石油天然气股份有限公司 | Synchronous grabbing mechanism for multi-wing mill shoes and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106468149B (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102996089A (en) | Multi-stage hydraulic expansion tail pipe suspension system with reducing expansion cone for horizontal well for thermal recovery of heavy oil | |
| CN106761593A (en) | A kind of bad ground pretreating process | |
| CN108561107A (en) | Multistage water injection process pipe string and its remove method | |
| CN107060702A (en) | Coupling type downhole choke | |
| CN106468149A (en) | A kind of salvaging structure | |
| CN104747112A (en) | Method for fishing fishes buried by silt and fishing spear of method | |
| CN102182417A (en) | Fishing and expanding integrated expansion pipe patching tool | |
| CN107152258A (en) | A kind of controlling lost circulation valve | |
| CN105781485B (en) | A kind of circulation type is from grouting floating hoop | |
| CN107630670A (en) | Automatic shut-in well integrated window-opening side-drilling tool | |
| CN205225136U (en) | Tear fish top fishing tool | |
| CN210396692U (en) | Karst area slip casting hole packer | |
| CN204371125U (en) | Diameter-variable hydraulic casing centralizer | |
| CN106968936B (en) | Ball-throwing type fixed valve | |
| CN109057732B (en) | Slurry type grouting circulating device and using method thereof | |
| CN106801589A (en) | High temperature resistant big orifice hydraulic booster expanding suspension instrument and method | |
| CN108316885B (en) | A kind of bridge plug with combination packing element | |
| CN105298460B (en) | Fracturing tool, fracturing string and fracturing process | |
| CN213838511U (en) | Eccentric glue-filling deflecting tool | |
| CN203756067U (en) | High-pressure test connector for expansion pipe | |
| CN204899858U (en) | Radial well plain type recycle valve | |
| CN108868673A (en) | Multiple-string packer Back-off Pipe String and its remove method | |
| CN108518199A (en) | It is mechanical to exempt to bore sizing collar and its application method | |
| CN207315276U (en) | Automatic shut-in well integrated window-opening side-drilling tool | |
| CN202012319U (en) | Fishing and expanding integrated expansion pipe patching tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |