CN107780863A - Drag for pipe - Google Patents
Drag for pipe Download PDFInfo
- Publication number
- CN107780863A CN107780863A CN201711193552.9A CN201711193552A CN107780863A CN 107780863 A CN107780863 A CN 107780863A CN 201711193552 A CN201711193552 A CN 201711193552A CN 107780863 A CN107780863 A CN 107780863A
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- China
- Prior art keywords
- shaft
- thing
- connecting tube
- dragged
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention provides one kind to drag for pipe, and this, which drags for pipe, includes：Housing, guide mechanism and the shaft mechanism and snap fastener being placed in housing；Wherein, the first end of housing is used to be connected with drilling tool, and the second end of housing is connected with guide mechanism, and guide mechanism is used to import thing to be dragged in housing；Thing to be dragged for is tubular structure；Shaft mechanism is connected and corresponding with guide mechanism with the first end of housing；Snap fastener is slidably connected to shaft mechanism, for thing to be dragged for be fastened with shaft mechanism, and is being locked together after dragging for thing and being fixed with shaft mechanism with shaft mechanism.The present invention enables to thing to be dragged for import exactly in housing, and together with can effectively ensureing that snap fastener, thing to be dragged for be fixed with shaft mechanism, realize thing to be dragged for and drag for the fixation of pipe, salvage simple and convenient, it is effectively improved the success rate of salvaging, the landing of the thing to be dragged in drilling process is proposed is avoided, can be with recycling suitable for various drilling wells.
Description
Technical field
The present invention relates to downhole hardware technical field, and pipe is dragged in particular to one kind.
Background technology
During wellbore construction, because operational error or other reasonses can cause drilling rod or coiled tubing etc. to drop in drilling well
It is interior, pull drilling well out in the drilling rod in drilling well or coiled tubing etc., it is necessary to will fall off to not influence construction speed.
At present, existing drilling well fishing tool drags for pipe using external clamping type, its structure for block dragged for drilling rod or
The outside of coiled tubing, then the structure is to act on the outside for being dragged for drilling rod or coiled tubing.However, dragged for drilling rod or company
The outer wall construction and profile of continuous oil pipe are irregular, so, easily cause the success rate of salvaging low, and then influence subsequent construction.
The content of the invention
In consideration of it, the present invention, which proposes one kind, drags for pipe, it is intended to solves fishing device in the prior art and is not easy caused by salvaging
Low success rate of problem.
The present invention proposes one kind and drags for pipe, and this, which drags for pipe, includes：Housing, guide mechanism and the shaft machine being placed in housing
Structure and snap fastener；Wherein, the first end of housing is used to be connected with drilling tool, and the second end of housing is connected with guide mechanism,
Guide mechanism is used to import thing to be dragged in housing；Thing to be dragged for is tubular structure；Shaft mechanism is connected with the first end of housing
It is and corresponding with guide mechanism；Snap fastener is slidably connected to shaft mechanism, for thing to be dragged for mutually to be blocked with shaft mechanism
Close, and locked together after dragging for thing and being fixed with shaft mechanism with shaft mechanism.
Further, above-mentioned to drag in pipe, shaft mechanism includes：Connecting tube and solid shaft；Wherein, the first of connecting tube
End is connected with the first end of housing and is connected with drilling tool, and the second end of connecting tube is connected with shaft；Snap fastener can be slided
Connecting tube is connected to dynamicly, also, the side wall that connecting tube corresponds at snap fastener offers hydraulic pressure hole, and connecting tube is used to receive
The liquid that drilling tool provides, and liquid is conveyed to drive engaging mechanism kinematic into snap fastener by hydraulic pressure hole；Shaft is along center
Axis offers the relief hole through shaft, and relief hole is connected with connecting tube.
Further, above-mentioned to drag in pipe, shaft mechanism also includes：Antichattering system；Wherein, antichattering system and connecting tube
It is connected and is placed in the top of snap fastener.
Further, above-mentioned to drag in pipe, antichattering system includes：At least two connecting plates；Wherein, the first of each connecting plate
End is connected with connecting tube, and the second end of each connecting plate is to extension at the inwall of housing.
Further, above-mentioned to drag in pipe, snap fastener includes：Drive mechanism and engaging body；Wherein, drive mechanism is slidably
Ground is connected to connecting tube and corresponding at hydraulic pressure hole, and engaging body is sheathed on the outside of shaft and is connected with drive mechanism；Driving
Mechanism be used for receive connecting tube conveying liquid, and when wait drag for thing it is corresponding with shaft when, drive engaging body transported downwards along shaft
Move so that thing to be dragged for be fastened with shaft, and locked together after dragging for thing and being fixed with shaft with connecting tube.
Further, above-mentioned to drag in pipe, drive mechanism includes：The shell of both ends open and the fluid cylinder being placed in shell,
The piston and latch assembly of locating part, annular；Wherein, casing is located at the outside of connecting tube, and locating part is placed in the top of shell,
The inwall of locating part is in contact with connecting tube, and the outer wall of locating part is connected with shell；Piston is placed in the bottom of shell, piston
Inwall is in contact with connecting tube, and the outer wall of piston is connected with shell；Fluid cylinder is placed in the middle part of shell, the inwall of fluid cylinder and connection
Pipe is connected, and the outer wall of fluid cylinder is in contact with shell；Engaging body is placed in the outside of shell and is connected with piston；Connecting tube is corresponding
Side wall between piston and fluid cylinder opens up hydraulic pressure hole；Latch assembly is used to lock together locating part and connecting tube.
Further, above-mentioned to drag in pipe, latch assembly includes：Check lock lever and the locking body of taper；Wherein, the of check lock lever
One end is connected with locating part, and the second end of check lock lever is connected with the cone bottom of locking body, and fluid cylinder is concaved with sealed groove,
The inwall of sealed groove offers recessed portion, and locking bar part is arranged in sealed groove, also, locking body is placed in recessed portion.
Further, above-mentioned to drag in pipe, the shape of engaging body and shaft matches.
Further, above-mentioned to drag in pipe, engaging body is provided with clamping body.
Further, above-mentioned to drag in pipe, clamping body is the engaging tooth of the outer wall projection of engaging body.
Further, above-mentioned to drag in pipe, engaging body includes：At least two fasteners；Wherein, each fastener with driving
Mechanism is connected, and each fastener is placed in the outside of shaft, and each fastener is used to fasten thing to be dragged for shaft.
Further, above-mentioned to drag in pipe, guide mechanism is guide wire, and the first end of guide wire is connected with the second end of housing
Connect, the second end of guide wire is tube pulling structure, and tube pulling structure is used to import thing to be dragged in guide wire；The inwall projection of guide wire
There is necking down structure, necking down structure is used for correcting thing to be dragged for.
Further, it is above-mentioned to drag in pipe, tube pulling structure for guide wire the second end port in the shape of a spiral.
In the present invention, enable to thing to be dragged for import exactly in housing by guide mechanism, be easy to subsequently treat and drag for thing
Be fixed, and thing to be dragged for is fastened with shaft mechanism by snap fastener so that snap fastener, thing to be dragged for and shaft machine
Structure is fixed together, that is, realizes thing to be dragged for and drag for the fixation of pipe, salvage it is simple and convenient, be effectively improved salvaging into
Power, solve fishing device in the prior art and be not easy low success rate of problem caused by salvaging, also, thing to be dragged for and shaft machine
Snap fastener locks together with shaft mechanism after structure fastens, and can be effectively guaranteed thing to be dragged for and snap fastener and shaft mechanism
The state being fixed togather, the landing of the thing to be dragged in drilling process is proposed is avoided, further increase the success rate of salvaging, together
When, suitable for various drilling wells, use range is expanded, can be cost-effective with recycling.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the structural representation provided in an embodiment of the present invention for dragging for pipe；
Fig. 2 is the detailed structure schematic diagram provided in an embodiment of the present invention for dragging for pipe；
Fig. 3 drags for latch assembly and the sealed structural representation of fluid cylinder in pipe to be provided in an embodiment of the present invention；
Fig. 4 is the structural representation provided in an embodiment of the present invention for dragging for antichattering system in pipe；
Fig. 5 is the structural representation provided in an embodiment of the present invention for dragging for drive mechanism in pipe.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the case where not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to Fig. 1, Fig. 1 is the structural representation provided in an embodiment of the present invention for dragging for pipe.As illustrated, dragging for pipe includes：Shell
Body 1, guide mechanism 2, shaft mechanism 3 and snap fastener 4.Wherein, the first end (upper end shown in Fig. 1) of housing 1 is used for and brill
Tool is connected, and the second end (lower end shown in Fig. 1) of housing 1 is connected with guide mechanism 2.Guide mechanism 2 is used for will thing be dragged for
Import in housing 1, wherein, thing to be dragged for is tubular structure.Specifically, thing to be dragged for can be drilling pipe, oil pipe, coiled tubing etc..Shell
The first end of body 1 is provided with connector 11, and the first end of connector 11 and housing 1 is is detachably connected, specifically, connector 11
Outer wall and the inwall of the first end of housing 1 be detachably connected, be such as threadedly coupled, the present embodiment is detachably connected for this
Mode does not do any restrictions.The outer wall of connector 11 stretches out the first end of housing 1 and is placed in the outside of housing 1, connector
11 inwall is provided with reducer union 12, and the reducer union 12 is connected with drilling tool.Guide mechanism 2 is open structure, so that
Thing to be dragged for is imported into housing 1 exactly, and then is easy to subsequently treat the fixation for dragging for thing and salvaging.
Shaft mechanism 3 is arranged in housing 1, the first end (upper end shown in Fig. 1) of shaft mechanism 3 and the first of housing 1
End is connected, also, the second end (lower end shown in Fig. 1) of shaft mechanism 3 is corresponding with guide mechanism 2.Specifically, shaft machine
Structure 3 is set in housing 1 in hanging, and shaft mechanism 3 is only mutually fixed with the first end of housing 1, so that shaft mechanism 3 keeps fixing
Motionless state.Second end of shaft mechanism 3 is towards guide mechanism 2, so that thing to be dragged for and shaft mechanism that guide mechanism 2 imports
3 the second end is corresponding, then guide mechanism 2 is additionally operable to thing correcting to be dragged for, so that thing to be dragged for and the second end phase of shaft mechanism 3
It is corresponding.
Snap fastener 4 is arranged in housing 1, and snap fastener 4 is slidably connected to shaft mechanism 3, and snap fastener 4 is used for
Thing to be dragged for is fastened with shaft mechanism 3, and locked together after dragging for thing and being fixed with shaft mechanism 3 with shaft mechanism 3.Tool
Body, snap fastener 4 can slide relative to shaft mechanism 3, also, when snap fastener 4 is (relative downwards relative to shaft mechanism 3
For Fig. 1) when sliding, snap fastener 4 causes thing to be dragged for and shaft mechanism 3 to be fastened togather, so that thing to be dragged for, snap fastener
4 and the three of shaft mechanism 3 be fixed.Also, after three is fixed, snap fastener 4 locks together with shaft mechanism 3, makes
Obtain snap fastener 4, thing to be dragged for and the three of shaft mechanism 3 and keep the state that is fixed.
During work, drilling tool is connected with the connector 11 of the first end of housing 1, is transferred housing 1 to drilling well by drilling tool
It is interior.When dragging for thing and being in contact with guide mechanism 2, guide mechanism 2 imports thing to be dragged in housing 1, also, thing to be dragged for is led
Just, so that thing to be dragged for is corresponding with the second end of shaft mechanism 3, that is, the inside of thing to be dragged for is relative with the second end of shaft mechanism 3
Should.At this moment, the slide downward of snap fastener 4 is controlled so that snap fastener 4 is placed in the inside of thing to be dragged for and is placed in the inwall of thing to be dragged for
Between shaft mechanism 3, snap fastener 4 will be together with thing be dragged for fastens with shaft mechanism 3.When thing to be dragged for and shaft mechanism 3
After being fixed, snap fastener 4 locks together with shaft mechanism 3 so that thing to be dragged for keeps the state that is fixed.Drilling tool is above carried, should
Drag for pipe and thing to be dragged for follows drilling tool to propose drilling well together, it is achieved thereby that the salvaging of thing to be dragged for.
As can be seen that in the present embodiment, enable to thing to be dragged for import exactly in housing 1 by guide mechanism 2, be easy to
Follow-up treat drags for being fixed for thing, and thing to be dragged for is fastened with shaft mechanism 3 by snap fastener 4 so that snap fastener
4th, together with thing to be dragged for is fixed with shaft mechanism 3, that is, realize thing to be dragged for and drag for the fixation of pipe, salvaging is simple and convenient, has
The success rate of salvaging is improved to effect, fishing device in the prior art is solved and is not easy low success rate of problem caused by salvaging,
Also, snap fastener 4 locks together with shaft mechanism 3 after dragging for thing and being fastened with shaft mechanism 3, can be effectively guaranteed and wait to drag for
The state that thing is fixed togather with snap fastener 4 and shaft mechanism 3, avoids the landing of the thing to be dragged in drilling process is proposed, enters
One step improves the success rate of salvaging, meanwhile, suitable for various drilling wells, use range is expanded, can be saved with recycling
About cost.
Referring to Fig. 1 and Fig. 2, the preferred structure of the shaft mechanism in the present embodiment is shown in figure.As illustrated, above-mentioned reality
Apply in example, shaft mechanism 3 can include：Connecting tube 31 and shaft 32.Wherein, the first end of connecting tube 31 is (upper shown in Fig. 1
End) be connected with the first end of housing 1, i.e., the first end of connecting tube 31 is connected with connector 11, and the connected mode can be
It is detachably connected, is such as threadedly coupled.Also, connecting tube 31 is connected with drilling tool, i.e. connecting tube 31 and the reducing of connector 11 connects
First 12 are connected, so that connecting tube 31 can receive the liquid of drilling tool offer.The second end (lower end shown in Fig. 1) of connecting tube 31
It is connected with shaft 32, then the second end of connecting tube 31 and shaft 32 are in vacant state in housing 1.
Snap fastener 4 is placed in the outside of connecting tube 31, also, snap fastener 4 is slidably connected to connecting tube 31.Connection
The side wall that pipe 31 corresponds at snap fastener 4 offers hydraulic pressure hole 311, and connecting tube 31 is used for the liquid for receiving drilling tool offer, and
Liquid is delivered to drive snap fastener 4 to move by snap fastener 4 by hydraulic pressure hole 311, then hydraulic pressure of the snap fastener 4 in liquid
Slided under effect along connecting tube 31.
Shaft 32 is solid construction, and shaft 32 offers the relief hole 321 through shaft 32, i.e. relief hole along central axis
321 run through shaft 32 along the length direction of shaft 32, then relief hole 321 is connected with connecting tube 31.Specifically, relief hole 321
First end (upper end shown in Fig. 1) be connected with connecting tube 31, the second end (lower end shown in Fig. 1) of relief hole 321 is spacious
Mouthful, relief hole 321 is used to receive the liquid in connecting tube 31, and liquid is discharged, and liquid is after the discharge of relief hole 321 again through leading
Draw mechanism 2 to be expelled in drilling well.
The diameter in hydraulic pressure hole 311 is more than the diameter of relief hole 321, and so, when driving snap fastener 4 to move, liquid can
To be preferably delivered to snap fastener 4 through hydraulic pressure hole 311；When snap fastener 4 need not be driven to move, liquid can be through relief hole
321 discharges.
As can be seen that in the present embodiment, the structure of shaft mechanism 3 is simple, convenient to carry out, also, connecting tube 31 pass through to
Snap fastener 4 conveys liquid to drive snap fastener 4 to move, and then thing to be dragged for is fastened with shaft mechanism 3, it is ensured that waits to drag for
The fixation of thing.
Referring to Fig. 1 and Fig. 4, in above-described embodiment, shaft mechanism 3 can also include：Antichattering system 33.Wherein, anti-shake
Dynamic device 33 is connected with connecting tube 31, also, antichattering system 33 is placed in the top (for Fig. 1) of snap fastener 4,
Antichattering system 33 is used to prevent rocking, shake or being broken for connecting tube 31 and shaft 32.
Referring to Fig. 4, it is preferred that antichattering system 33 can include：At least two connecting plates 331.Wherein, each connecting plate
331 first end is connected with connecting tube 31, and the second end of each connecting plate 331 is to extension at the inwall of housing 1.So,
Rocking or being broken for connecting tube 31 can be effectively prevented from, and then prevents rocking, shake or being broken for shaft 32.
Second end of each connecting plate 331 can have gap between the inwall of housing 1, so, avoid each company
Second end of fishplate bar 331 and the friction of the inwall of housing 1.Certainly, the second end of each connecting plate 331 can also with housing 1
Inwall is in close contact, and so, is relatively fixed connecting tube 31 and housing 1 by each connecting plate 331, can preferably be avoided connecting
Pipe 31 rocking or being broken.
It is more highly preferred to, circumference of each connecting plate 331 along connecting tube 31 is uniformly distributed.When it is implemented, connecting plate 331 is
It three, can effectively ensure the stabilization of connecting tube 31, avoid rocking or being broken for connecting tube 31.
Antichattering system 33 can also be entity structure, and entity structure can be torus, the inwall of torus and connection
The outer wall of pipe 31 is connected, and the outer wall of torus is in close contact with the inwall of housing 1.The present embodiment is for antichattering system 33
Concrete structure does not do any restrictions, as long as rocking, shake or being broken for connecting tube 31 and shaft 32 can be prevented.
As can be seen that in the present embodiment, by setting antichattering system 33, connecting tube 31 and shaft can be effectively prevented
32 rock, shake or are broken so that thing to be dragged for can stably be fixed with snap fastener 4 by shaft 32 and smoothly propose
Drilling well.
Referring to Fig. 1 and Fig. 2, the preferred structure of snap fastener in the present embodiment is shown in figure.As illustrated, above-mentioned implementation
In example, snap fastener 4 can include：Drive mechanism 41 and engaging body 42.Wherein, drive mechanism 41 is slidably connected to connect
Pipe 31, also, drive mechanism 41 corresponds at hydraulic pressure hole 311, so that the liquid in connecting tube 31 is delivered to drive through hydraulic pressure hole 311
In motivation structure 41.Engaging body 42 is sheathed on the outside of shaft 32, also, engaging body 42 is connected with drive mechanism 41, specifically,
Engaging body 42 is to be fixedly connected with drive mechanism 41, so that engaging body 42 is moved under the driving of drive mechanism 41.Engaging body 42
The connectionless relation between shaft 32, original state is in when dragging for pipe, i.e., when engaging body 42 is not slided, engaging body 42 and shaft 32
Simply it is in contact and is not connected to.
Preferably, the shape of engaging body 42 and shaft 32 matches.In the present embodiment, shaft 32 is tapered, then engages
Body 42 is also tapered, so that engaging body 42 is preferably sheathed on the outside of shaft 32.
Drive mechanism 41 be used for receive connecting tube 31 conveying liquid, and when wait drag for thing it is corresponding with shaft 32 when, drive
Engaging body 42 is moved downward so that thing to be dragged for be fastened with shaft 32 along shaft 32, and after dragging for thing and being fixed with shaft 32
Locked together with connecting tube 31.
The liquid of conveying is delivered in drive mechanism 41 through hydraulic pressure hole 311 in connecting tube 31, and drive mechanism 41 is in liquid
Itself is moved downward under hydraulic action, and then drives engaging body 42 to move downward, and engaging body 42 will thing be dragged for and the phase card of shaft 32
Close so that engaging body 42, thing to be dragged for and shaft 32 are fastened togather.
As can be seen that in the present embodiment, drive mechanism 41 receives the liquid that connecting tube 31 conveys, and makees in the hydraulic pressure of liquid
With the motion of lower driving engaging body 42, so that engaging body 42 is fastened togather with thing to be dragged for and shaft 32, thing to be dragged for ensure that
It is fixed, also, drive mechanism 41 locks together with connecting tube 31, it is ensured that the stable engaging of thing to be dragged for.
With continued reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, in above-described embodiment, drive mechanism 41 can include：Shell 411, fluid cylinder
412nd, locating part 413, the piston 414 and latch assembly 415 of annular.Wherein, the both ends of shell 411 are openend, shell 411
The outside of connecting tube 31 is sheathed on, also, there is a certain distance between the inwall of shell 411 and the outer wall of connecting tube 31.
Fluid cylinder 412, locating part 413, piston 414 and latch assembly 415 are placed in the inside of shell 411.Locating part 413 is put
In the top of shell 411 (top shown in Fig. 1), the inwall of locating part 413 is in contact with connecting tube 31, outside locating part 413
Wall is connected with shell 411.Specifically, the inwall of the outer wall of locating part 413 and shell 411 is to be detachably connected, as screw connects
Connect, it is of course also possible to be other detachable connections, the present embodiment does not do any restrictions to this.The inwall of locating part 413
It is in close contact with the outer wall of connecting tube 31, so that locating part 413 can slide along connecting tube 31.When it is implemented, in locating part 413
The touching position of outer wall of inwall and connecting tube 31 be provided with O-ring seals 5.
When it is implemented, locating part 413 can be torus, torus is sheathed on the outside of connecting tube 31.Referring to Fig. 5,
Locating part 413 can also include：At least two limit bodies, circumference of each limit body along connecting tube 31 are uniformly distributed, each spacing
The inwall of body is in close contact with connecting tube 31, and the outer wall of each locating part 413 is connected with shell 411.In the present embodiment
In, locating part 413 includes：Three limit bodies.
Piston 414 is placed in the bottom (bottom shown in Fig. 1) of shell 411, then piston 414 is by the end of the bottom of shell 411
Closed in portion.The inwall of piston 414 is in contact with the outer wall of connecting tube 31, the outer wall of piston 414 and the inwall phase of shell 411
Connection.Specifically, the inwall of the outer wall of piston 414 and shell 411 is is detachably connected, such as screw connection, it is of course also possible to be
Other detachable connections, the present embodiment do not do any restrictions to this.The inwall of piston 414 and the outer wall of connecting tube 31 are tight
Contiguity is touched, so that piston 414 can slide along connecting tube 31.When it is implemented, in the inwall and the outer wall of connecting tube 31 of piston 414
Touching position be provided with O-ring seals 5.
Fluid cylinder 412 is placed in the middle part (for Fig. 1) of shell 411, the inwall of fluid cylinder 412 and the outer wall of connecting tube 31
It is connected, the outer wall of fluid cylinder 412 is in contact with shell 411.Specifically, to be fixedly connected between fluid cylinder 412 and connecting tube 31, with
Fluid cylinder 412 is set to be relatively fixed with connecting tube 31, i.e., the state that fluid cylinder 412 remains stationary as.The outer wall of fluid cylinder 412 and shell 411
To be in close contact between inwall, when it is implemented, the touching position in the outer wall and the inwall of shell 411 of fluid cylinder 412 is provided with O
Shape sealing ring 5.
Engaging body 42 is placed in the outside of shell 411, also, engaging body 42 is connected with piston 414.Specifically, engaging body
42 are connected with the bottom of piston 414.
Piston 414 and fluid cylinder 412 are placed in the bottom of shell 411 in annular shape, piston 414, and fluid cylinder 412 is placed in shell
411 middle part, has a pre-determined distance between piston 414 and fluid cylinder 412, the pre-determined distance cause piston 414, fluid cylinder 412 with it is outer
A receiving space 416 is formd between shell 411.The side wall that connecting tube 31 corresponds between piston 414 and fluid cylinder 412 opens up liquid
Hole 311 is pressed, i.e., hydraulic pressure hole 311 is opened up in the side wall that connecting tube 31 corresponds at receiving space 416, so that the liquid in connecting tube 31
Body is delivered in receiving space 416 through hydraulic pressure hole 311.Liquid promotes piston 414 to move downward in receiving space 416, and then
Drive engaging body 42 to move downward, and then thing to be dragged for is fastened togather by engaging body 42 with shaft 32.
Latch assembly 415 is used for will be after dragging for thing and being fixed togather with shaft 32, by locating part 413 with connecting in engaging body 42
Adapter 31 locks together, with prevent locating part 413 upwards motion so that it is upward with piston 414 and engaging body 42 by shell 411
Motion causes the snap action of engaging body 42 to weaken, and causes thing to be dragged for and the disengaging of shaft 32 and engaging body 42.
The structure of latch assembly 415 can be arbitrary structures, as long as locating part 413 and connecting tube 31 can lock together i.e.
Can, the present embodiment does not do any restrictions to this.One of which concrete structure is merely illustrated in the present embodiment, but is not limited to
This structure：Referring to Fig. 2 and Fig. 3, latch assembly 415 can include：Check lock lever 4151 and the locking body of taper 4152.Wherein, lock
The first end (upper end shown in Fig. 3) of tight bar 4151 is connected with locating part 413, and the second end of check lock lever 4151 is (shown in Fig. 3
Lower end) it is connected with the cone bottom of locking body 4152, locking body 4152 is set to be hanging.Fluid cylinder 412 corresponds to check lock lever 4151
Opening position be concaved with sealed groove 4121, the inwall of sealed groove 4121 offers recessed portion 4222, the part of check lock lever 4151
Sealed groove 4121 is arranged in, and locking body 4152 is placed in recessed portion 4222.Specifically, the cone bottom of locking body 4152 is straight
Footpath is more than the diameter of check lock lever 4151.The width (direction from left to right shown in Fig. 3) of recessed portion 4222 is more than sealed groove
4121 width, then sealed groove 4121 and the section of recessed portion 4222 form inverted " t " type.Locking body 4152 bores the straight of bottom
Footpath is less than the width of sealed groove 4121, then check lock lever 4151 is arranged in sealed groove 4121, and locking body 4152 is embedded at recessed portion
In 4222, sealed groove 4121 plays restriction effect to locking body 4152, avoids locking body 4152 from departing from recessed portion 4222, so that
Locating part 413 locks together with fluid cylinder 412, because fluid cylinder 412 is connected with connecting tube 31, so, realize locating part 413 and
Connecting tube 31 it is sealed.
When it is implemented, the structure of above-mentioned latch assembly 415 could be arranged to it is multiple.When locating part 413 is torus,
Circumference of each latch assembly 415 along locating part 413 is uniformly distributed.When locating part 413 includes：During at least two limit bodies, each
Latch assembly 415 can be provided with limit body.
As can be seen that in the present embodiment, piston is driven under the hydraulic action of the liquid between piston 414 and fluid cylinder 412
414 motion, and then the motion of engaging body 42 is driven, it is achieved thereby that engaging body 42, thing to be dragged for and shaft 32 fasten one
Rise, it is simple in construction, it is convenient to carry out.
Referring to Fig. 1, in the various embodiments described above, engaging body 42 is provided with clamping body, clamping body be used for engaging body 42,
When thing is dragged for and shaft 32 fastens so that clamping between engaging body 42 and thing to be dragged for.So, clamping body enables to engage
Snap action between body 42 and thing to be dragged for is more effective, and preferably thing to be dragged for can fasten with dragging for pipe, avoid thing to be dragged for
The disengaging of engaging body 42, it is effectively improved the success rate of salvaging.
Clamping body can be the engaging tooth of the outer wall projection of engaging body 42, and engaging tooth can be hangnail.When engaging body 42,
When together with dragging for thing with shaft 32 and fasten, the setting of engaging tooth can increase the friction between engaging body 42 and thing to be dragged for
Power, effectively prevent that thing to be dragged for from moving downward and then so that thing to be dragged for is separated with engaging body 42.Certainly, clamping body can also
For other structures, the present embodiment does not do any restrictions to this.
Referring to Fig. 1, in the various embodiments described above, engaging body 42 can be structure as a whole, and in the present embodiment, engaging body 42 is in
Taper, then engaging body 42 is bullet.
Engaging body 42 can also include：At least two fasteners.Wherein, the first end of each fastener is and drive mechanism
41 are connected, i.e., the bottom of the first end of each fastener with piston 414 is connected, the second end of each fastener be from
By holding.Each engaging body 42 is placed in the outside of shaft 32, and each engaging body 42 is used to fasten thing to be dragged for and shaft 32.
Specifically, each fastener is enclosed located at the outside of shaft 32, also, each fastener encloses the shape phase of the shape and shaft 32 set
Match somebody with somebody.Each fastener can with it is adjacent contact set or, two neighboring fastener has pre-determined distance, i.e., each fastener is in
Divide valvular structure, then each fastener is distributed in the outside of shaft 32 in flap.When it is implemented, the distribution of each fastener can root
Determined according to actual conditions, the present embodiment does not do any restrictions to this.The pre-determined distance can also determine according to actual conditions,
The present embodiment does not do any restrictions to this.
As can be seen that in the present embodiment, engaging body 42 includes at least two fasteners, and shaft 32 is placed in by each fastener
Outside, not only realize and thing to be dragged for and shaft 32 fasten, moreover, making simple, save material.
Referring to Fig. 1, in the various embodiments described above, guide mechanism 2 can be guide wire 21, first end (Fig. 1 institutes of guide wire 21
The upper end shown) it is connected with the second end of housing 1, the second end (lower end shown in Fig. 1) of guide wire 21 is openend, also,
Second end of guide wire 21 is tube pulling structure 22, and tube pulling structure 22 is used to import thing to be dragged in guide wire 21.
Preferably, tube pulling structure 22 for guide wire 21 the second end port in the shape of a spiral, specifically, tube pulling structure 22 with
The bottom edge at the second end of guide wire 21 is starting point, and circumferentially spiral one is enclosed to the top of starting point so that guide wire 21
The port at the second end form the gap of certain area.
The inwall of guide wire 21 is convexly equipped with necking down structure 23, and necking down structure 23 is used for correcting thing to be dragged for.Specifically, guide wire
The internal diameter of 21 first end is identical with the internal diameter of housing 1, the middle part projection necking down structure 23 of guide wire 21, and the necking down structure 23 is
The block of the inwall projection of guide wire 21, the section of the block can be isosceles trapezoid, bottom and the guide wire 21 of the block
Inwall is connected, and the block is set in a ring along the circumference of the inwall of guide wire 21.Certainly, block can also be in a ring.The necking down
Structure 23 causes the internal diameter of guide wire 21 is first tapered into by first end to the second end to keep smoothly becoming larger again again.It is preferred that
, the internal diameter at necking down structure 23 is slightly larger than the internal diameter of thing to be dragged for, and thing correcting is dragged for play a part for the treatment of.
When it is implemented, housing 1 can be formed in one with guide wire 21.
As can be seen that in the present embodiment, guide wire 21 is oriented to by tube pulling mechanism so that thing to be dragged for enters exactly
Enter in guide wire 21, then treated by necking down structure 23 and to drag for thing and carry out correcting so that thing to be dragged for is kept upright state, and to treat
Dragging for thing can be corresponding with shaft 32, and then together with being easy to engaging body 42, thing to be dragged for be fastened with shaft 32.
With reference to Fig. 1 to Fig. 5, the specific work process for dragging for pipe is described in detail.Drilling tool and the company of the first end of housing 1
Reducer union 12 at junctor 11 is connected, and is transferred housing 1 to drilling well by drilling tool, also, drilling tool drives housing 1 and led
Skirt 21 constantly rotates, and when the tube pulling structure 22 of the guide wire 21 constantly rotated is touched when thing is dragged for, drilling tool is above carried certain
Distance, the entire length that distance generally drags for pipe is put forward on this.Then, drilling tool is slowly transferred, also, adjusts the rotation speed of drilling tool
Degree so that drilling tool slowly rotates.In decentralization process, toggle action of the thing to be dragged for Jing Guo tube pulling structure 22 is directed into guide wire 21
In, the necking down structure 23 of guide wire 21, which is treated, drags for thing and carries out correcting so that and thing to be dragged for is kept upright state, and so that wait to drag for
Thing is corresponding with shaft 32, i.e., shaft 32 both corresponds to the inside of thing to be dragged for engaging body 42.At this moment, by drilling tool to connecting tube
Conveying liquid in 31, because the aperture in hydraulic pressure hole 311 is more than the aperture of relief hole 321, so, liquid conveys through hydraulic pressure hole 311
To the receiving space 416 between piston 414 and fluid cylinder 412, as liquid is constantly delivered to the receiving space 416, liquid pair
Piston 414 plays driving work, and driving piston 414 moves downward, and then drives engaging body 42 to be moved downward along shaft 32.Shaft
32 remain stationary as state, and engaging body 42 is moved downward in the gap being just inserted between thing to be dragged for and shaft 32, with liquid
Thing to be dragged for can be firmly fastened togather by body constantly filling to receiving space 416, engaging body 42 with shaft 32.In this mistake
Cheng Zhong, moving downward for piston 414 have also driven moving downward for locating part 413, when engaging body 42, thing to be dragged for and shaft 32 are blocked
Close after fixing, locating part 413 is just in contact with fluid cylinder 412, and the check lock lever 4151 on locating part 413 is arranged in fluid cylinder 412
Sealed groove 4121, locking body 4152 are placed in the recessed portion 4222 of sealed groove 4121 so that locking body 4152 and sealed groove 4121
Lock together, i.e., locating part 413 locks together with fluid cylinder 412.At this moment, the liquid in receiving space 416 is through the company of flowing out to of hydraulic pressure hole 311
In adapter 31, the liquid in connecting tube 31 is discharged by relief hole 321, and is expelled to via housing 1, guide wire 21 in drilling well.By
Continuously outflowed in the liquid in receiving space 416, liquid gradually weakens to the driving effect of piston 414, due to locating part 413 with
Fluid cylinder 412 locks together, and prevents the upward motion of locating part 413, that is, prevents the upward motion of piston 414 so that piston 414
Ortho states is kept, that is, causes engaging body 42 to keep the state being fixed with thing to be dragged for and shaft 32.Drilling tool is above carried, pipe will be dragged for treating
Dragging for thing follows drilling tool to propose drilling well together, it is achieved thereby that the salvaging of thing to be dragged for.
In summary, the present embodiment enables to thing to be dragged for import exactly in housing 1, and causes snap fastener 4, waits to drag for
Together with thing is fixed with shaft mechanism 3, that is, realizes thing to be dragged for and drag for the fixation of pipe, salvaging is simple and convenient, effectively carries
The high success rate salvaged, also, snap fastener 4 locks together with shaft mechanism 3 after dragging for thing and being fastened with shaft mechanism 3, energy
The state that thing to be dragged for is fixed togather with snap fastener 4 and shaft mechanism 3 is enough effectively guaranteed, avoids proposing drilling process
In thing to be dragged for landing, further increase the success rate of salvaging, meanwhile, suitable for various drilling wells, expand use range, also
Can be cost-effective with recycling.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (13)
1. one kind drags for pipe, it is characterised in that including：Housing (1), guide mechanism (2) and the lance being placed in the housing (1)
Linkage (3) and snap fastener (4)；Wherein,
The first end of the housing (1) is used to be connected with drilling tool, the second end and the guide mechanism (2) of the housing (1)
It is connected, the guide mechanism (2) is used to import thing to be dragged in the housing (1)；The thing to be dragged for is tubular structure；
The shaft mechanism (3) is connected and corresponding with the guide mechanism (2) with the first end of the housing (1)；
The snap fastener (4) is slidably connected to the shaft mechanism (3), for by the thing to be dragged for and the shaft machine
Structure (3) fastens, and is locked together described after dragging for thing and being fixed with the shaft mechanism (3) with the shaft mechanism (3).
2. according to claim 1 drag for pipe, it is characterised in that the shaft mechanism (3) includes：Connecting tube (31) and solid
Shaft (32)；Wherein,
The first end of the connecting tube (31) is connected with the first end of the housing (1) and is connected with the drilling tool, described
Second end of connecting tube (31) is connected with the shaft (32)；
The snap fastener (4) is slidably connected to the connecting tube (31), also, the connecting tube (31) is corresponding to described
The side wall at snap fastener (4) place offers hydraulic pressure hole (311), and the connecting tube (31) is used for the liquid for receiving drilling tool offer, and
Liquid is conveyed to drive the snap fastener (4) to move into the snap fastener (4) by the hydraulic pressure hole (311)；
The shaft (32) offers the relief hole (321) through the shaft, the relief hole (321) and institute along central axis
Connecting tube (31) is stated to be connected.
3. according to claim 2 drag for pipe, it is characterised in that the shaft mechanism (3) also includes：Antichattering system
(33)；Wherein,
Antichattering system (33) is connected with the connecting tube (31) and is placed in the top of the snap fastener (4).
4. according to claim 3 drag for pipe, it is characterised in that the antichattering system (33) includes：At least two connections
Plate (331)；Wherein,
The first end of each connecting plate (331) is connected with connecting tube (31), and the second end of each connecting plate (331) is equal
Extend to the inwall of the housing (1).
5. according to claim 2 drag for pipe, it is characterised in that the snap fastener (4) includes：Drive mechanism (41) and card
Fit (42)；Wherein,
The drive mechanism (41) is slidably connected to the connecting tube (31) and corresponds to hydraulic pressure hole (311) place, institute
Engaging body (42) is stated to be sheathed on the outside of the shaft (32) and with the drive mechanism (41) be connected；
The drive mechanism (41) is used for the liquid for receiving the connecting tube (31) conveying, and when thing to be dragged for and the shaft (32)
When corresponding, the engaging body 42 is driven to be moved downward along the shaft (32) with by the thing to be dragged for and the shaft (32) phase
Engaging, and locked together described after dragging for thing and being fixed with the shaft (32) with the connecting tube (31).
6. according to claim 5 drag for pipe, it is characterised in that the drive mechanism (41) includes：The shell of both ends open
(411) and be placed in the shell (411) fluid cylinder (412), locating part (413), annular piston (414) and locking group
Part (415)；Wherein,
The shell (411) is sheathed on the outside of the connecting tube (31), and the locating part (413) is placed in the shell (411)
Top, the inwall of the locating part (413) is in contact with the connecting tube (31), the outer wall of the locating part (413) and institute
Shell (411) is stated to be connected；
The piston (414) is placed in the bottom of the shell (411), inwall and the connecting tube (31) of the piston (414)
It is in contact, the outer wall of the piston (414) is connected with the shell (411)；
The fluid cylinder (412) is placed in the middle part of the shell (411), inwall and the connecting tube (31) of the fluid cylinder (412)
It is connected, the outer wall of the fluid cylinder (412) is in contact with the shell (411)；
The engaging body (42) is placed in the outside of the shell (411) and is connected with the piston (414)；The connecting tube
(31) side wall corresponded between the piston (414) and the fluid cylinder (412) opens up the hydraulic pressure hole (311)；
The latch assembly (415) is used to lock together the locating part (413) and the connecting tube (31).
7. according to claim 6 drag for pipe, it is characterised in that the latch assembly (415) includes：Check lock lever (4151) and
The locking body (4152) of taper；Wherein,
The first end of the check lock lever (4151) is connected with the locating part (413), the second end of the check lock lever (4151)
It is connected with the cone bottom of the locking body (4152), the fluid cylinder (412) is concaved with sealed groove (4121), described sealed
The inwall of groove (4121) offers recessed portion (4122), and the check lock lever (4151) is partly arranged in the sealed groove (4121),
Also, the locking body (4152) is placed in the recessed portion (4122).
8. according to claim 5 drag for pipe, it is characterised in that the engaging body (42) and the shape phase of the shaft (32)
Matching.
9. according to claim 5 drag for pipe, it is characterised in that the engaging body (42) is provided with clamping body.
10. according to claim 9 drag for pipe, it is characterised in that the clamping body is the outer wall of the engaging body (42)
The engaging tooth of projection.
11. drag for pipe according to any one of claim 5,6,8 to 10, it is characterised in that the engaging body (42) includes：
At least two fasteners；Wherein,
Each fastener is connected with the drive mechanism (41), and each fastener is placed in the shaft (32)
Outside, each fastener is used to fasten the thing to be dragged for and the shaft (32).
12. according to claim 1 drag for pipe, it is characterised in that
The guide mechanism (2) is guide wire (21), the first end of the guide wire (21) and the second end phase of the housing (1)
Connection, the second end of the guide wire (21) is tube pulling structure (22), and the tube pulling structure (22) is used to thing to be dragged for importing institute
State in guide wire (21)；
The inwall of the guide wire (21) is convexly equipped with necking down structure (23), and the necking down structure (23) is used to wait to drag for described in correcting
Thing.
13. according to claim 12 drag for pipe, it is characterised in that the tube pulling structure (22) is the guide wire (21)
The port at the second end is in the shape of a spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193552.9A CN107780863A (en) | 2017-11-24 | 2017-11-24 | Drag for pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193552.9A CN107780863A (en) | 2017-11-24 | 2017-11-24 | Drag for pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107780863A true CN107780863A (en) | 2018-03-09 |
Family
ID=61430907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711193552.9A Pending CN107780863A (en) | 2017-11-24 | 2017-11-24 | Drag for pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107780863A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470117A (en) * | 2013-09-30 | 2013-12-25 | 北京航天发射技术研究所 | Box cover locking mechanism |
| CN204098837U (en) * | 2014-08-13 | 2015-01-14 | 新奥气化采煤有限公司 | Drag for pipe |
| CN107023998A (en) * | 2016-12-06 | 2017-08-08 | 嵊州市诺米克进出口有限公司 | A kind of reliable and stable water heater mechanism |
| CN107191152A (en) * | 2017-06-29 | 2017-09-22 | 新疆国利衡清洁能源科技有限公司 | A kind of expansion type drags for pipe |
| CN206608130U (en) * | 2017-04-07 | 2017-11-03 | 松原市胜源宏石油技术服务有限公司 | Fluid pressure type fishing spear |
| CN207470141U (en) * | 2017-11-24 | 2018-06-08 | 新疆国利衡清洁能源科技有限公司 | Fishing pipe |
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2017
- 2017-11-24 CN CN201711193552.9A patent/CN107780863A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470117A (en) * | 2013-09-30 | 2013-12-25 | 北京航天发射技术研究所 | Box cover locking mechanism |
| CN204098837U (en) * | 2014-08-13 | 2015-01-14 | 新奥气化采煤有限公司 | Drag for pipe |
| CN107023998A (en) * | 2016-12-06 | 2017-08-08 | 嵊州市诺米克进出口有限公司 | A kind of reliable and stable water heater mechanism |
| CN206608130U (en) * | 2017-04-07 | 2017-11-03 | 松原市胜源宏石油技术服务有限公司 | Fluid pressure type fishing spear |
| CN107191152A (en) * | 2017-06-29 | 2017-09-22 | 新疆国利衡清洁能源科技有限公司 | A kind of expansion type drags for pipe |
| CN207470141U (en) * | 2017-11-24 | 2018-06-08 | 新疆国利衡清洁能源科技有限公司 | Fishing pipe |
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