CN206309339U - A kind of slips - Google Patents
A kind of slips Download PDFInfo
- Publication number
- CN206309339U CN206309339U CN201621358887.2U CN201621358887U CN206309339U CN 206309339 U CN206309339 U CN 206309339U CN 201621358887 U CN201621358887 U CN 201621358887U CN 206309339 U CN206309339 U CN 206309339U
- Authority
- CN
- China
- Prior art keywords
- slips
- block teeth
- central tube
- sub
- wall
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of slips, belong to oil field equipment field.The slips includes the slip spider that central tube connects with central tube lower end, is sleeved on central tube and slips body that lower end offsets with the upper end of slip spider, can slide up and down to the tapered sleeve for being sleeved on central tube and being docked with slips body.Wherein, slips body is prepared by using the sub- body that elastic band tightens multiple circumferentially directional combinations；The upper end inwall of sub- body is arranged to the inclined-plane being adapted with the lower end cone face of tapered sleeve；Multiple occlusion block teeth are radially provided with the outer wall of sub- body.The slips that this new embodiment is provided can reduce the hardness of slips body by setting multiple occlusion block teeth, the design of both non-integrals on slips body, reduce its fragility and easily broken fragility, the hardness of occlusion block teeth can be improved simultaneously, improve its snap-in force with sleeve pipe, it is ensured that the stable grappling of slips.And its occlusal contact area with sleeve pipe can be reduced, reduce the damage to sleeve pipe.
Description
Technical field
Originally it is new to be related to oil field equipment field, more particularly to a kind of slips.
Background technology
In oil drilling technology, come to be connected with bridging plug, packer, hanger etc. usually using slips, so by they
Be fixed in wellbore casing, its for oil producing operation be normally carried out have great importance, so, there is provided a kind of slips is ten
Divide important.
Prior art provides such a sawtooth slips, including central tube and the slip spider of central tube lower end connection, set
On central tube and be placed on the slips body of slip spider upper end, can slide up and down to be sleeved on central tube and with card
The tapered sleeve of watt body docking, slips body upper end inner side is provided with the conical surface being adapted with tapered sleeve tapered lower end, slips body
Sawtooth is provided with outer surface.During work, move down to force slips body radially to be expanded by tapered sleeve, make thereon
Sawtooth be engaged with internal surface of sleeve pipe, so as to realize its fixation in wellbore casing.
Designer has found that prior art at least has problems with：
Prior art sets sawtooth by slips body surface, and this body is the integrated design with card for it so that whole
The hardness of slips body is identical, increased the fragility and easily broken fragility of slips body, also, it is big with the occlusal contact area of sleeve pipe,
Easily destroy sleeve pipe.
Utility model content
This new embodiment technical problem to be solved is, there is provided one kind improves durability and avoids large area from damaging
The slips of bad sleeve pipe.Concrete technical scheme is as follows：
A kind of slips, including central tube and the central tube lower end connection slip spider, be sleeved on the central tube simultaneously
And lower end offseted with the upper end of the slip spider slips body, can slide up and down to be sleeved on the central tube and with institute
State the tapered sleeve of slips body docking, it is characterised in that the slips body tightens multiple circumferentially directions by using elastic band
The sub- body of combination is prepared；
The upper end inwall of the sub- body is arranged to the inclined-plane being adapted with the lower end cone face of the tapered sleeve；
Multiple occlusion block teeth are radially provided with the outer wall of the sub- body.
Specifically, preferably, the occlusion block teeth are chamfer cylinder；
Multiple cylinder block teeth grooves are provided with the outer wall of the sub- body, the cylinder-shaped end of the occlusion block teeth is fixed
In the cylindrical block teeth groove, the scarf end of the occlusion block teeth is relative with the inwall of wellbore casing.
Specifically, preferably, the tip of the scarf end of the occlusion block teeth is distributed down.
Specifically, preferably, the angle being engaged between the scarf of the scarf end of block teeth and vertical direction
It is 20 ° -30 °.
Specifically, preferably, multiple occlusion block teeth are scattered in an at least circle around the outer wall of the slips body.
Specifically, block teeth are engaged described at least one preferably, being provided with the outer wall of each sub- body.
Specifically, preferably, being provided with least one circle groove on the outer wall of the slips body；
The elastic band is placed in the groove.
Specifically, preferably, the upper end of the central tube is provided with chamfering.
Specifically, preferably, being provided with external screw thread on the lower end outer wall of the central tube, in the upper end of the slip spider
Internal thread is provided with wall；
The central tube is threadedly coupled with the slip spider.
The beneficial effect brought of technical scheme that this new embodiment is provided is：
The slips that this new embodiment is provided, tightens many sub- bodies and prepares slips body by using elastic band,
When driving tapered sleeve to move downward under hydraulic action, its lower conical surface will be moved downward along the inclined-plane of sub- body, force slips
The overall outwards expansion of body, until occlusion block teeth thereon bite internal surface of sleeve pipe, and then realizes the grappling of slips.It can be seen that, this is new
The slips that type embodiment is provided can so be subtracted by setting multiple occlusion block teeth, the design of both non-integrals on slips body
The hardness of few slips body, reduces its fragility and easily broken fragility, while the hardness of occlusion block teeth can be improved, improves it with sleeve pipe
Snap-in force, it is ensured that the stable grappling of slips.And, by will occlusion block teeth interval setting into a bulk, can so reduce its with
The occlusal contact area of sleeve pipe, reduces the damage to sleeve pipe.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in this new embodiment, below will be to make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only this some new embodiment, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the slips that this new embodiment is provided；
Fig. 2 is the structural representation of the sub- body of the slips that this new embodiment is provided.
Reference is represented respectively：
1 central tube,
2 slip spiders,
3 slips bodies,
301 sub- bodies,
302 grooves,
4 tapered sleeves,
5 elastic bands,
6 occlusion block teeth.
Specific embodiment
For the purpose, technical scheme and advantage for making this new are clearer, below in conjunction with accompanying drawing to this new embodiment party
Formula is described in further detail.
This new embodiment provides a kind of slips, and as shown in Figure 1, the slips is included under central tube 1 and central tube 1
Hold connection slip spider 2, be sleeved on central tube 1 and lower end and slip spider 2 upper end offset slips body 3, can be upper and lower
The tapered sleeve 4 for being slidably sleeved on central tube 1 and being docked with slips body 3.Wherein, slips body 3 is by using elastic band 5
The sub- body 301 for tightening multiple circumferentially directional combinations is prepared；The upper end inwall of sub- body 301 is arranged to and tapered sleeve 4
The inclined-plane that lower end cone face is adapted；Multiple occlusion block teeth 6 are radially provided with the outer wall of sub- body 301, referring to accompanying drawing
2。
The slips that this new embodiment is provided, tightens many sub- bodies 301 and prepares slips sheet by using elastic band 5
Body 3, when driving tapered sleeve 4 to move downward under hydraulic action, its lower conical surface will be moved downward along the inclined-plane of sub- body 301,
The overall outwards expansion of slips body 3 is forced, until occlusion block teeth 6 thereon bite internal surface of sleeve pipe, and then the grappling of slips is realized.
It can be seen that, by setting multiple occlusion block teeth 6 on slips body 3, both set non-integral the slips that this new embodiment is provided
Meter, can so reduce the hardness of slips body 1, reduce its fragility and easily broken fragility, while the hardness of occlusion block teeth 6 can be improved,
Improve its snap-in force with sleeve pipe, it is ensured that the stable grappling of slips.And, by the way that the interval setting of block teeth 6 will be engaged into a bulk,
Its occlusal contact area with sleeve pipe can be so reduced, the damage to sleeve pipe is reduced.
Wherein, the upper end inwall of sub- body 301 is arranged to the inclined-plane being adapted with the lower end cone face of tapered sleeve 4, with so that two
Person can relatively slidably, and the lower end cone face of the inclined-plane and tapered sleeve 4 is smooth flat, preferably, can be at both
On be coated with one layer of wear resistant smooth coating.
Occlusion block teeth 6 can use various structures, as long as making its end being engaged with sleeve pipe be with certain sharpness
, for example, occlusion block teeth 6 can be using the cylinder with cone point.Preferably, occlusion block teeth 6 are justified for beveling
Cylinder；Multiple cylinder block teeth grooves are provided with the outer wall of sub- body 301, the cylinder-shaped end for being engaged block teeth 6 is fixed on cylinder
In shape block teeth groove, the scarf end for being engaged block teeth 6 is relative with the inwall of wellbore casing.It is understood that cylindrical block teeth
Axis direction of the axis of groove perpendicular to sub- body 301.Block teeth 6 are by cylindrical body and are arranged on cylindrical body one for occlusion
The scarf end at end is constituted, and chamfer cylinder is set to by by occlusion block teeth 6, is so not only convenient for shaping and is prepared, and
The scarf end that it has is easier to be engaged with internal surface of sleeve pipe and be fixed therein after occlusion.In the circle by block teeth 6 are engaged
When cylindricality end is fixed in cylindrical block teeth groove, it is preferred to use the mode of interference fit makes them be fixed together.
Preferably, as shown in Figures 1 and 2, the tip for being engaged the scarf end of block teeth 6 is distributed down, i.e.,
The bottom for being engaged the scarf end of block teeth 6 is engaged with internal surface of sleeve pipe first, then its energy when tapered sleeve 4 continues down to move
Enough force and be engaged more firm between occlusion block teeth 6 and internal surface of sleeve pipe, and then effectively improve the grappling dynamics of slips.
In order to ensure the sharpness of biting pressure, it is set sequentially to be engaged with internal surface of sleeve pipe, while ensure occlusion dynamics,
In this new embodiment, the angle being engaged between the scarf of the scarf end of block teeth 6 and vertical direction is 20 ° -30 °, example
Such as it is 20 °, 25 °, 28 °, 30 °.
In order that slips is stably anchored in sleeve pipe, as shown in Figure 1.Multiple occlusion block teeth 6 are around the outer of slips body 3
Wall is scattered in an at least circle, such as Liang Quan, three circles etc..For multiple occlusion block teeth 6 of same circle, two neighboring occlusion tooth
Circumferential distance between block 6 is equal, i.e., they are evenly spaced distribution.
In order to improve grappling uniformity, at least one occlusion block teeth 6 are provided with the outer wall in every individual sub- body 301,
Such as 2 are engaged block teeth 6 etc..
In this new embodiment, tighten the sub- body 301 of multiple circumferentially directional combinations by using elastic band 5 to obtain
Slips body 3 is obtained, slips body 3 can be so assigned and outwards be expanded and indeformable ability, elastic band 5 can be around several circles in slips
On the outer wall of body 3, or, as a kind of preferred embodiment, at least one circle groove 302, bullet are set on the outer wall of slips body 3
Power band 5 is placed in groove 302, when slips body 3 outwards expands, elastic band 5 will not be made to be moved, so that it is guaranteed that its is swollen
Stability when swollen.It is understood that after being respectively provided with one section of groove 302 and docking on the outer wall in sub- body 301
Obtain an above-mentioned circle groove 302.
Used as connection member, it can be attached central tube 1 with bridging plug, packer, hanger etc., for convenience its with
The assembling of each part, chamfering is provided with the upper end of central tube 1.In order to realize that (it is generally heavy wall to central tube 1 with slip spider 2
Tubular) between firm connection, while the dismounting between being easy to them, external screw thread is provided with the lower end outer wall of central tube 1,
Internal thread is provided with the upper end inwall of slip spider 2, central tube 1 is threadedly coupled with slip spider 2.
This new preferred embodiment is the foregoing is only, is not used to limit this new protection domain, it is all new at this
Within the spirit and principle of type, any modification, equivalent substitution and improvements made etc. should be included in this new protection domain
Within.
Claims (9)
1. a kind of slips, including central tube (1) and the central tube (1) lower end connection slip spider (2), be sleeved on it is described in
Slips body (3) that on heart pipe (1) and lower end offsets with the upper end of the slip spider (2), can slide up and down to and be sleeved on institute
The tapered sleeve (4) stated on central tube (1) and docked with the slips body (3), it is characterised in that the slips body (3) is led to
The sub- body (301) for tightening multiple circumferentially directional combinations using elastic band (5) is crossed to prepare；
The upper end inwall of the sub- body (301) is arranged to the inclined-plane being adapted with the lower end cone face of the tapered sleeve (4)；
Multiple occlusions block teeth (6) are radially provided with the outer wall of the sub- body (301).
2. slips according to claim 1, it is characterised in that the occlusion block teeth (6) are chamfer cylinder；
Multiple cylinder block teeth grooves, the cylinder-shaped end of the occlusion block teeth (6) are provided with the outer wall of the sub- body (301)
It is fixed in the cylindrical block teeth groove, the scarf end of occlusion block teeth (6) is relative with the inwall of wellbore casing.
3. slips according to claim 2, it is characterised in that the tip of the scarf end of the occlusion block teeth (6) is
It is distributed down.
4. slips according to claim 3, it is characterised in that the scarf of the scarf end of the occlusion block teeth (6)
Angle between vertical direction is 20 ° -30 °.
5. slips according to claim 1, it is characterised in that multiple occlusions block teeth (6) are around the slips body (3)
Outer wall be scattered in an at least circle.
6. slips according to claim 1, it is characterised in that be provided with the outer wall of each sub- body (301) to
Few occlusion block teeth (6).
7. slips according to claim 1, it is characterised in that be provided with least on the outer wall of the slips body (3)
Circle groove (302)；
The elastic band (5) is placed in the groove (302).
8. slips according to claim 1, it is characterised in that the upper end of the central tube (1) is provided with chamfering.
9. slips according to claim 1, it is characterised in that be provided with outer spiral shell on the lower end outer wall of the central tube (1)
Line, internal thread is provided with the upper end inwall of the slip spider (2)；
The central tube (1) is threadedly coupled with the slip spider (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358887.2U CN206309339U (en) | 2016-12-12 | 2016-12-12 | A kind of slips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358887.2U CN206309339U (en) | 2016-12-12 | 2016-12-12 | A kind of slips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309339U true CN206309339U (en) | 2017-07-07 |
Family
ID=59251376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621358887.2U Active CN206309339U (en) | 2016-12-12 | 2016-12-12 | A kind of slips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206309339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118072A (en) * | 2019-06-24 | 2019-08-13 | 陕西航天德林科技集团有限公司 | A kind of slips and its manufacturing method |
-
2016
- 2016-12-12 CN CN201621358887.2U patent/CN206309339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118072A (en) * | 2019-06-24 | 2019-08-13 | 陕西航天德林科技集团有限公司 | A kind of slips and its manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206405957U (en) | Fast connecting device of pipelines | |
| WO2016205372A3 (en) | System and method for a conformable pressure vessel | |
| CN209163776U (en) | A kind of solvable bridge plug | |
| CN206309339U (en) | A kind of slips | |
| CN107575574A (en) | Plunger | |
| CN203656394U (en) | Hot water pipe joint | |
| CN106287075A (en) | A kind of fast assembling-disassembling assembling pipe joint | |
| RU2002134114A (en) | CASING SEALING DEVICE | |
| CN203321362U (en) | Hydraulic type casing centralizer | |
| CN206626318U (en) | A kind of quick change swelling pipeline attachment structure | |
| CN206514738U (en) | It is a kind of detachably to can adjust new tamper | |
| CN206889449U (en) | Nut and screw rod | |
| CN206669142U (en) | A kind of novel garden stainless steel flexible hose | |
| CN202228044U (en) | Screw type sleeve scrapping device | |
| CN203743811U (en) | Flexible hose capable of achieving linear elastic deformation during torsion | |
| CN103791172A (en) | Novel composite seamless pipe | |
| CN206830066U (en) | A kind of connector | |
| CN210033498U (en) | Combined hollow grouting anchor rod | |
| CN204782966U (en) | Elasticity fracturing ball seat | |
| CN201092831Y (en) | Lifting screw pump anchoring device. | |
| CN203847508U (en) | Pipe-in-pipe type fixing pipe base | |
| GB2590328A (en) | System for limiting radial expansion of an expandable seal | |
| CN106854983A (en) | For the blanking plug of tubing coupling | |
| CN204941443U (en) | One easily bores bridging plug | |
| CN111779465A (en) | Soluble fracturing ball seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |