CN209212189U - A kind of Novel releasing gadget - Google Patents
A kind of Novel releasing gadget Download PDFInfo
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- CN209212189U CN209212189U CN201821987502.8U CN201821987502U CN209212189U CN 209212189 U CN209212189 U CN 209212189U CN 201821987502 U CN201821987502 U CN 201821987502U CN 209212189 U CN209212189 U CN 209212189U
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- face
- sleeve
- sliding sleeve
- lock claw
- corpus unguis
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Abstract
The utility model relates to a kind of Novel releasing gadgets, including top connection, thrust valve, function sliding sleeve, external seal cylinder, lock claw and drop bar；Top connection and external seal cylinder are equipped with hollow cavity；Thrust valve, function sliding sleeve, lock claw and drop bar are arranged in hollow cavity；Thrust valve one end is connected on the end face of top connection inner cavity, and the other end passes through function sliding sleeve top end face and is connected on lock claw end face；Lock claw includes at least two corpus unguis, and lock claw can switch between the first state and a second state, and under first state, corpus unguis is connected in drop bar, and predetermined gap is formed under the second state, between corpus unguis so that drop bar falls off.The sleeve that Novel releasing gadget provided by the utility model has the lock claw of radial dilatation structure and cooperate with lock claw by setting, lower contact is fixed with limited step without shear pin, to greatly improve the success rate of hydraulic releasing operation, the Novel releasing gadget is compact-sized, it is higher to operate success rate, operating efficiency can be effectively improved.
Description
Technical field
The utility model relates to oil-gas mining downhole tool fields, more particularly to a kind of Novel releasing gadget.
Background technique
Releasing tool is a kind of common downhole tool in well-completing process, is mainly used for well cementing operation and fracturing work.
Occur usually in the form of safety joint in drilling well, well cementation and in terms of be generally termed releasing tool or automatic de- hang is tied
Structure.In well-completing process, often need to act pit shaft for a part of completion tubular column, another part completion tubular column stays in the wellbore.
In order to realize the requirement of these techniques, need to disengage lower part tubing string using to releasing device to reach, propose in the construction process
Top tubing string realizes the work of top and the bottom separation to well head.With increasing for horizontal well, especially long horizontal sections naked eye gas well
Staged fracturing technique, need to be using drilling rod by underground open hole packer and staged fracturing tool string G.I.H, using conventional
Pressure break releasing tool not only cannot achieve tieback fracturing work, but also the process pipe string of tripping in and the success rate for being sent into tubing string disengagement
It is lower, influence production efficiency.
Existing releasing device generallys use the mode of rotation or upper lifting pipe post, so that on releasing tool between lower contact
Shear pin cut with movement of completing to give up.Active force between upper lower contact is connected by pin, and shear pin is by outer
It is easily deformed or is cut when boundary's shock loading, and the pin after cutting will affect success of giving up inside releasing tool
Rate.
Utility model content
Based on this, it is necessary at least one problem mentioned above, provide a kind of Novel releasing gadget.
A kind of Novel releasing gadget, including top connection, thrust valve, function sliding sleeve, external seal cylinder, lock claw and drop bar；Institute
It states top connection and the external seal cylinder is equipped with hollow cavity, the top connection is detachably connected with the external seal cylinder；It is described
Thrust valve, the function sliding sleeve, the lock claw and the drop bar are arranged in the hollow cavity；Thrust valve one end
It is connected on the end face of the top connection inner cavity, the other end passes through the function sliding sleeve top end face and is connected on the lock claw end face；
The lock claw includes at least two corpus unguis, and the lock claw can switch between the first state and a second state, the first state
Under, the corpus unguis is connected in the drop bar, and predetermined gap is formed under second state, between the corpus unguis for described
Drop bar falls off.
In one of the embodiments, further include the sleeve being arranged in the hollow cavity and elastic portion, and with institute
State the lower thrust block seat that drop bar is detachably connected；The corpus unguis is abutted with the sleeve；The abutting of the corpus unguis and the sleeve
Face is angled end-face, and the abutting end face on the sleeve is a part that end face is abutted on the corpus unguis；Under the first state, institute
State the end face outside of corpus unguis and the pre- fixed gap in cavity wall interval of the hollow cavity；A part of the sleeve is plugged in the function
In energy sliding sleeve, relative motion of the elastic portion between sleeve and the function sliding sleeve provides elastic force.
Further, the elastic portion includes spring and spring base, and the spring base is equipped with the inner cavity with through-hole, described
Sleeve is set in described interior intracavitary and extends to outside the spring base end face along the through-hole, and the spring is set in the sleeve
On, the spring one end is connected on the function sliding sleeve bottom face, and the other end is connected to the inner cavity end face near the through-hole
On.
Further, the sleeve is equipped with several grooves, and one side end face of groove is inclined end face, the function
The internal chamber wall that sliding sleeve is abutted with the sleeve is equipped with several annular grooves, and the position of the annular groove and the groove matches, wherein
Elastomer is equipped in the space that one annular groove and the groove are formed, the cross-sectional shape of the elastomer is right angle ladder
Shape.
Further, it is provided on the spring base and the spring base internal chamber wall of external seal cylinder junction multiple close
Sealing groove, the seal groove is interior to be equipped with sealing ring.
The thrust valve includes four stacking beam columns in one of the embodiments, and the stacking beam column includes the first bar
Body and second body of rod, first body of rod and the stacking fitting of second body of rod a part.
The lock claw includes 4 corpus unguis in one of the embodiments, and the corpus unguis is centered around around the drop bar.
Controllable valve is additionally provided on the function sliding sleeve top end face in one of the embodiments, the controllable valve is used
In the connection and closing of the hollow cavity for the inner cavity and the top connection for controlling the function sliding sleeve.
The controllable valve includes the cambered surface groove being arranged on the function sliding sleeve and close in one of the embodiments,
The bottom end of blocking, the cambered surface groove is equipped with through-hole, and the ball sealer can be fitted in the cambered surface groove.
Novel releasing gadget provided by the utility model has the lock claw and and lock claw of radial dilatation structure by setting
The sleeve of cooperation fixes lower contact with limited step without shear pin, to greatly improve the success of hydraulic releasing operation
Rate, the Novel releasing gadget is compact-sized, and operation success rate is higher, can effectively improve operating efficiency.
Detailed description of the invention
Fig. 1 is the sectional structure chart of Novel releasing gadget in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of lock claw in an embodiment of the present invention；
Fig. 3 is the partial structural diagram of an embodiment of the present invention middle sleeve；
Fig. 4 is the structural schematic diagram of thrust valve in an embodiment of the present invention；
Fig. 5 is the assembling structure schematic diagram of thrust valve and function sliding sleeve in an embodiment of the present invention.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
The understanding for opening content is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" includes
Any and all combinations of one or more related listed items.
A kind of Novel releasing gadget is provided in an embodiment of the present invention, as depicted in figs. 1 and 2, is included at least upper
Connector 100, thrust valve 200, function sliding sleeve 300, external seal cylinder 400, lock claw 500 and drop bar 600 further include common lose certainly
The other parts of arm device, following thrust block seat 900, lower contact 910 etc..During wherein top connection 100 and external seal cylinder 400 are equipped with
Empty inner cavity, and top connection 100 is detachably connected with external seal cylinder 400, such as can be connected by helicitic texture or buckle structure
It picks up and, preferably helicitic texture, have more leakproofness.Thrust valve 200, function sliding sleeve 300, lock claw 500 and drop bar 600 are equal
It is arranged in hollow cavity namely these components is encapsulated in top connection 100 and external seal cylinder 400.Wherein thrust valve 200
One end is connected on 100 inner cavity end face of top connection, and the other end passes through 300 top end face of function sliding sleeve and is connected on 500 end face of lock claw,
Thrust valve 200 plays the role of transmission force, will be transmitted in lock claw 500 from the pressure of top connection 100 or thrust, the lock claw
500 include at least two corpus unguis 510, it is preferred that four corpus unguis 510 can be used, which is wound around drop bar 600
Around.Also, especially requiring emphasis, lock claw 500 can switch between the first state and a second state, in the first state,
Corpus unguis 510 is connected in drop bar 600, i.e. some portion of chamfered shape phase in the chamfered shape with drop bar 600 of corpus unguis 510
Match, in the first state, lock claw 500 is in tightening state, and lock claw 500 is locked in drop bar 600, and in the second condition,
Predetermined gap is formed between corpus unguis 510 so that drop bar 600 falls off, namely lock claw 500 is opened at this time, opens the space formed
More than or equal to the full-size of drop bar 600, drop bar 600 can therefrom fall off, and other portions connecting with drop bar 600
Therefore part also separates, operation of giving up is completed in the separation of lower contact in realization.Without the certain structures of pressure break or cutting during this
Certain components, separation is very convenient quick, can effectively improve degree of operating conveniently, and improve operating efficiency.
It further include the sleeve 700 being arranged in hollow cavity as shown in Figure 1, Figure 2 and Figure 3 as a preferred scheme
And elastic portion, and the lower thrust block seat 800700 being detachably connected with drop bar 600.Corpus unguis 510 is abutted with sleeve 700, and
The bearing surface of corpus unguis 510 and sleeve 700 is angled end-face, and the tilt angle of the angled end-face is preferably 60 °, the abutting on sleeve 700
End face 710 is a part that end face 511 is abutted on the corpus unguis 510, and the movement as corpus unguis 510 relative to sleeve 700 mentions
For space.In the first state, the pre- fixed gap in the cavity wall interval of the end face outside of corpus unguis 510 and hollow cavity, i.e. lock claw 500
Maximum gauge is less than the maximum gauge for installing 300 inner cavity of function sliding sleeve of lock claw 500, and expansible distance should be big
In the difference for being equal to maximum gauge and minimum diameter in drop bar 600.A part of sleeve 700 is plugged in function sliding sleeve 300, i.e.,
Sleeve 700 and the concentric setting of function sliding sleeve 300, sleeve 700 can be movable relatively with function sliding sleeve 300, it is generally the case that sleeve
700 keep opposing stationary, and function sliding sleeve 300 moves, and wherein elastic portion is used between sleeve 700 and function sliding sleeve 300
Relative motion provides elastic force.When being stopped from extraneous liquid stream by 300 top end face of function sliding sleeve, generates and push away on function sliding sleeve 300
Thrust is transmitted to elastic portion by power, function sliding sleeve 300, and thrust is transmitted to sleeve 700 by elastic portion, due to sleeve 700 and lock claw
500 joint face is inclined surface, therefore the thrust pushes lock claw 500 to moving radially, to open, is switched to the second state
Under.It is further preferred that elastic portion therein includes spring and spring base, spring base is equipped with the inner cavity with through-hole, the set
Cylinder 700 is set in described interior intracavitary and extends to outside the spring base end face along the through-hole, and spring is set on sleeve 700,
And a part is connect with sleeve 700, and the spring one end is connected on 300 bottom face of function sliding sleeve, and the other end abuts
On inner cavity end face near the through-hole.Still more preferably, the sleeve 700 is equipped with several grooves, the groove
One side end face is inclined end face, and the internal chamber wall that the function sliding sleeve 300 is abutted with the sleeve 700 is equipped with several annular grooves, institute
The position for stating annular groove and the groove matches, and is equipped with elasticity in the space that one of them described annular groove and the groove are formed
Body, the cross-sectional shape of the elastomer are right-angled trapezium.When function sliding sleeve 300 is mobile, corresponding groove originally can be made
It misplaces with annular groove, since the cross-sectional shape of elastomer is right-angled trapezium, elastic shrinkage can occur, be limited in ring
In slot, until the annular groove and another matching grooves, lock claw 500 can be continuously maintained in the second state at this time.In addition, spring base
Multiple seal grooves are provided with on the spring base internal chamber wall of 400 junction of external seal cylinder, sealing ring is equipped in the seal groove.
As a preferred scheme, as shown in Figure 4 and Figure 5, thrust valve 200 includes four stacking beam columns, the laminated beams
Bar includes first body of rod 210 and second body of rod 220, the 220 a part stacking fitting of first body of rod 210 and second body of rod.The body of rod
Shape is not limited to cuboid, for convenient for cooperating with the function sliding sleeve 300 of cylinder type, may be configured as section is fan-shaped shape
Shape.
As a preferred scheme, controllable valve, the controllable valve are additionally provided on 300 top end face of function sliding sleeve
For controlling the connection and closing of the inner cavity of the function sliding sleeve 300 and the hollow cavity of the top connection 100.Controllable valve can
Electric control valve is taken, instruction is sent to it by way of electric signal, to condition maturity, turns on or off it, realization is lost
Hand operation.It is of course also possible to take mechanical structure, such as controllable valve includes the cambered surface groove being arranged on function sliding sleeve 300
310 and ball sealer 320, the bottom end of cambered surface groove 310 is equipped with through-hole, and ball sealer 320 can be fitted in cambered surface groove.When needing to seal
Close the through-hole on function sliding sleeve 300, implementation is given up when operating, and it can be put into ball sealer 320 to cambered surface groove 310, block through-hole,
Liquid stream thrust is formed in 300 top end face of function sliding sleeve.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of Novel releasing gadget, which is characterized in that including top connection, thrust valve, function sliding sleeve, external seal cylinder, lock claw and
Drop bar；The top connection and the external seal cylinder are equipped with hollow cavity, and the top connection and the external seal cylinder are detachable
Connection；The thrust valve, the function sliding sleeve, the lock claw and the drop bar are arranged in the hollow cavity；It is described
Thrust valve one end is connected on the end face of the top connection inner cavity, and the other end passes through the function sliding sleeve top end face and is connected to the lock
On pawl end face；The lock claw includes at least two corpus unguis, and the lock claw can switch between the first state and a second state, described
Under first state, the corpus unguis is connected in the drop bar, under second state, forms predetermined gap between the corpus unguis
So that the drop bar falls off.
2. Novel releasing gadget according to claim 1, which is characterized in that further include being arranged in the hollow cavity
Sleeve and elastic portion, and the lower thrust block seat being detachably connected with the drop bar；The corpus unguis is abutted with the sleeve；It is described
The bearing surface of corpus unguis and the sleeve is angled end-face, and the abutting end face on the sleeve is one that end face is abutted on the corpus unguis
Point；Under the first state, the pre- fixed gap in cavity wall interval of the end face outside of the corpus unguis and the hollow cavity；The sleeve
A part be plugged in the function sliding sleeve, the elastic portion is for relative motion between sleeve and the function sliding sleeve
Elastic force is provided.
3. Novel releasing gadget according to claim 2, which is characterized in that the elastic portion includes spring and spring base,
The spring base is equipped with the inner cavity with through-hole, and the sleeve is set in described interior intracavitary and extends to the bullet along the through-hole
Outside spring abutment end face, the spring is set on the sleeve, and the spring one end is connected on the function sliding sleeve bottom face, separately
One end is connected on the inner cavity end face near the through-hole.
4. Novel releasing gadget according to claim 3, which is characterized in that the sleeve is equipped with several grooves, described
One side end face of groove is inclined end face, and the internal chamber wall that the function sliding sleeve is abutted with the sleeve is equipped with several annular grooves, described
The position of annular groove and the groove matches, and is equipped with elastomer in the space that one of them described annular groove and the groove are formed,
The cross-sectional shape of the elastomer is right-angled trapezium.
5. Novel releasing gadget according to claim 3, which is characterized in that the spring base is connect with the external seal cylinder
It is provided with multiple seal grooves on the spring base internal chamber wall at place, is equipped with sealing ring in the seal groove.
6. Novel releasing gadget according to claim 1, which is characterized in that the thrust valve includes four stacking beam columns,
The stacking beam column includes first body of rod and second body of rod, and first body of rod and the stacking of second body of rod a part are bonded.
7. Novel releasing gadget according to claim 1, which is characterized in that the lock claw includes 4 corpus unguis, the corpus unguis
It is centered around around the drop bar.
8. Novel releasing gadget according to claim 1, which is characterized in that being additionally provided on the function sliding sleeve top end face can
Valve is controlled, the controllable valve is used to control the connection and envelope of the inner cavity of the function sliding sleeve and the hollow cavity of the top connection
It closes.
9. Novel releasing gadget according to claim 7, which is characterized in that the controllable valve includes being arranged in the function
Cambered surface groove and ball sealer on energy sliding sleeve, the bottom end of the cambered surface groove are equipped with through-hole, and the ball sealer can be fitted in described
In cambered surface groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821987502.8U CN209212189U (en) | 2018-11-29 | 2018-11-29 | A kind of Novel releasing gadget |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821987502.8U CN209212189U (en) | 2018-11-29 | 2018-11-29 | A kind of Novel releasing gadget |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209212189U true CN209212189U (en) | 2019-08-06 |
Family
ID=67462077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821987502.8U Active CN209212189U (en) | 2018-11-29 | 2018-11-29 | A kind of Novel releasing gadget |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209212189U (en) |
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2018
- 2018-11-29 CN CN201821987502.8U patent/CN209212189U/en active Active
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