CN207161001U - A kind of casing stabbing board stopping means - Google Patents
A kind of casing stabbing board stopping means Download PDFInfo
- Publication number
- CN207161001U CN207161001U CN201720544187.0U CN201720544187U CN207161001U CN 207161001 U CN207161001 U CN 207161001U CN 201720544187 U CN201720544187 U CN 201720544187U CN 207161001 U CN207161001 U CN 207161001U
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- CN
- China
- Prior art keywords
- spacing ring
- stopping means
- sleeve pipe
- stabbing board
- casing stabbing
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Abstract
The utility model provides a kind of casing stabbing board stopping means, including：Outer spacing ring, for being set in sleeve pipe, the outer spacing ring is hollow cylindrical, and its inwall sets taper thread；Interior spacing ring, on the inside of the outer spacing ring, the interior spacing ring is hollow cylindrical, which is provided with multiple axial gaps；The outer wall of the interior spacing ring is provided with the external screw thread to match with the taper thread；The inwall of the interior spacing ring is provided with internal thread, is in contact for the outer wall with sleeve pipe.Casing stabbing board stopping means provided by the utility model, unstressed centrostigma, can bear two-way axle power, and when the external force being subject to is bigger, its fixed effect is better.The casing stabbing board stopping means can bear the pressure of the larger pulling force above put forward and decentralization, when setting of casing process is hampered carry out activity tubing string, it can be good at fixing centralizer, it is set not moved up and down in sleeve pipe, also will not be grown because of the activity time, positioner is caused to damage, causes its damage to fall well.
Description
Technical field
The spacing technical field of casing stabbing board when the utility model is related to oil gas well cementing operation, more particularly to a kind of sleeve pipe
Centralizer stopping means.
Background technology
At present, the casing stabbing board stopping means that in the market mainly uses has percussive crimp sleeve centralizer stopping means
With two kinds of screw-type casing stabbing board stopping means.
The main operational principle of the first percussive hoop formula casing stabbing board stopping means：This stop ring body is by two and half
Circular locating snap ring ring body composition, two semicircle locating snap ring ring body one end are movably connected by pin axle, and the other end is button
Hinge is closed, stamps out multiple stop holes in the tangential direction on the outer surface of two semicircle locating snap ring ring bodies along annulus, is led to
Cross locking pin to pound in stop hole, be interference fitted with casing wall, reach stop.
The main operational principle of second of percussive clamping hoop type casing stabbing board stopping means：When clip body fastens,
Buckling does not occur for inner side overlapping portion, reliably fastens by secure component, while improves the operability of fastening.It includes：Clip
Body, the overlapped ring-type in outside overlapping portion and inner side overlapping portion is formed, is wound in by secure component；Connecting hole, formed
In on the overlapping portion of outside；Engagement pawl, it is formed on the overlapping portion of inner side, clip body is kept by engaging with above-mentioned connecting hole
Tightening state；First instrument pawl, it is formed on the overlapping portion of outside, positioned at the front of above-mentioned connecting hole；Second instrument pawl, formed
In on the overlapping portion of inner side, for the fastening clamp body together with the first instrument pawl；Load reduction device, it is formed at outside overlapping portion
On, during so that engagement pawl being crossed in the fastening China and foreign countries side overlapping portion of clip body, reduce the load acted on the overlapping portion of inner side.
The third is screw-type casing stabbing board stopping means, and its operation principle is：Two semicircle locating snap rings stamp out
Some convex closures, two halves circle locating snap ring one end are hinged, and the other end is fastened by engaging lug and screw bolt and nut, and the number of nut is
Two.Annular collar is enclosed on sleeve pipe, tightens the nibbed screw in annular collar, makes its squeezing bushing, is formed resistance, is reached fixed limit
The purpose of position device.
Above-mentioned the first and second of percussive clamping hoop type casing stabbing board stopping means, in use, be carried out
Tapping, make metal buckle component undergoes deformation, metal buckle deformation is bigger, and fastening performance is better, but its processing is complex,
Secondly, deformation position easily produces stress concentration point, during setting of casing, needs moving casing repeatedly when complex situations occur
When, stress concentration point easily deforms or damaged, and causes clip fastening effect to weaken or fail, under extreme case, also
It is likely to occur fracture and falls well.
The third screw-type casing stabbing board stopping means, its restraining ability are depended primarily between bulge body and sleeve pipe
Frictional force, this restraining ability is limited (about 20~40KN), and when by compared with high thrust, the locating snap ring may fail, and more have very
Person, which is directly squeezed, to be ruined.
Therefore, how to design a kind of safe and reliable casing stabbing board stopping means is urgent problem to be solved.
Utility model content
Feature and advantage of the present utility model partly state in the following description, or can be aobvious and easy from the description
See, or can be learnt by putting into practice the utility model.
To overcome problem of the prior art, the utility model provides a kind of casing stabbing board stopping means, including：
Outer spacing ring, for being set in sleeve pipe, the outer spacing ring is hollow cylindrical, and its inwall sets taper thread；
Interior spacing ring, on the inside of the outer spacing ring, the interior spacing ring is hollow cylindrical, which is provided with multiple axles
To breach；The outer wall of the interior spacing ring is provided with the external screw thread to match with the taper thread；The inwall of the interior spacing ring
Provided with internal thread, it is in contact for the outer wall with sleeve pipe.
In one embodiment of the present utility model, the external screw thread has certain taper.
In one embodiment of the present utility model, the internal thread is serration screw thread.
In one embodiment of the present utility model, the axial gap is 4 to 8；E.g. 6.
In one embodiment of the present utility model, the height of the axial gap is less than the height of the interior spacing ring
1/4。
In one embodiment of the present utility model, the interior spacing ring is provided with ring-type chassis, ring-type chassis position
In the interior spacing ring close to one end of the bottom of the axial gap.
In one embodiment of the present utility model, the first end of the outer spacing ring can be with slight deformation.
In one embodiment of the present utility model, the thickness of the first end of the outer spacing ring is less than 2mm.
In one embodiment of the present utility model, the first end of the outer spacing ring is by multiple lobes not being in contact
Composition.
In one embodiment of the present utility model, the interior spacing ring is 2, and the outer spacing ring is 2.
The utility model provides a kind of casing stabbing board stopping means, simple in construction, securely and reliably, when setting of casing process
Be hampered carry out activity tubing string when, can be good at fixing centralizer, it is not moved up and down in sleeve pipe, also will not be because of activity
Time is grown, and positioner is caused to damage, and causes its damage to fall well.
By reading specification, the feature of these technical schemes and interior will be best understood in those of ordinary skill in the art
Hold.
Brief description of the drawings
The utility model is specifically described below with reference to accompanying drawing and with reference to example, the advantages of the utility model and realization
Mode will be more obvious, and content is only used for explanation of the present utility model wherein shown in accompanying drawing, without forming to this reality
With it is new in all senses on limitation, in the accompanying drawings：
Fig. 1 is the schematic diagram of the casing stabbing board stopping means of the utility model embodiment.
Fig. 2 is the assembling schematic diagram of the casing stabbing board stopping means of the utility model embodiment.
Embodiment
As shown in figure 1, the utility model provides a kind of casing stabbing board stopping means, including for being set on sleeve pipe
Outer spacing ring 10 and the interior spacing ring 20 between outer spacing ring 10 and sleeve pipe；Wherein,
Outer spacing ring 10 is hollow cylindrical, and its inwall sets taper thread 11；Outer spacing ring 10 carries the button of extrusion capability
And anti-rotation structure；
Interior spacing ring 20 is located on the inside of outer spacing ring, and interior spacing ring 20 is hollow cylindrical, which is provided with multiple axial directions and lacks
Mouth 21, interior spacing ring is divided into multiple arcs valve by the plurality of axial gap 21；The outer wall of interior spacing ring 20 is provided with and taper spiral shell
The external screw thread 22 that line matches；The inwall of interior spacing ring 20 is provided with internal thread 23, is in contact for the outer wall with sleeve pipe.
In the present embodiment, external screw thread 22 has certain taper；It should be noted that the taper of external screw thread 22 can not with outside
The taper of taper thread on spacing ring matches；Internal thread 23 is the serration screw thread that can bear axial force.
Above-mentioned axial gap 21 be 4 to 8, e.g. 6 so that interior spacing ring 20 is divided into 6 arc valves.Should
The height of axial gap 21 is less than the 1/4 of the height of interior spacing ring.In addition, interior spacing ring 21 is provided with ring-type chassis 24, ring-type
Chassis 24 is located at interior spacing ring close to one end of the bottom of axial gap, and the outer wall for protruding from arc valve is set.
Although not shown in figure, in one embodiment of the present utility model, the first end of outer spacing ring 10 can be with
Slight deformation.Specifically, can reduce the thickness of the first end makes it can be with slight deformation, such as makes the first end of outer spacing ring
Thickness be less than 2mm.Further, it is also possible to the first end of outer spacing ring 10 is set to be made up of multiple lobes not being in contact.
The material of above-mentioned outer spacing ring and interior spacing ring is high strength steel, the internal thread and casing-contact of interior spacing ring, is used
Friction is formed between sleeve pipe, reaches spacing purpose.
In use, outer spacing ring is first enclosed on sleeve pipe, then interior spacing ring is covered on interior spacing ring, screw both it
Between screw thread, so as to spacing ring in jam-packed, interior spacing ring is close to the serration screw thread of sleeve pipe one side and be tightly attached on sleeve pipe, when outer
Ring is bigger to the squeezing action of inner ring, and it is adjacent to, and power is bigger, and positioner fixed effect is better.
In the specific implementation, interior spacing ring is 2, respectively positioned at the both ends of centralizer；Outer spacing ring is 2, respectively position
In the both ends of centralizer.Referring to Fig. 2, when installing casing stabbing board stopping means provided by the utility model, mainly
Operating procedure is：
Outer spacing ring 32 is adjusted into direction, is enclosed on sleeve pipe；
By 31 sets of interior spacing ring in the inside of outer spacing ring 32, tightened using the special instrument of linking closely；
Centralizer 50 is enclosed on sleeve pipe；
Outer spacing ring 41 is enclosed on sleeve pipe；
By 42 sets of interior spacing ring in the inside of outer spacing ring 41, tightened using specific purpose tool, you can realize spacing；
Usually, next on upper and lower spacing ring, the distance between centralizer is respectively 0.5 meter or so.
Casing stabbing board stopping means provided by the utility model, unstressed centrostigma, can bear two-way axle power, when by
External force it is bigger, its fixed effect is better.The casing stabbing board stopping means can bear the larger pulling force above carried and decentralization
Pressure, and different sizes, limit stress is different, wherein 7 " sets are effective to reach 80~100KN, when setting of casing process is hampered progress
It during movable tubing string, can be good at fixing centralizer, it is not moved up and down in sleeve pipe, will not also be grown because of the activity time,
Positioner is caused to damage, causes its damage to fall well.
Casing stabbing board stopping means provided by the utility model, it is mainly used in petroleum gas and new energy industry, it is right
Casing stabbing board is positioned, and promotes centralizer to reach best righting effect, improves cementing quality.
Above by reference to preferred embodiment of the present utility model has been illustrated, it is new that those skilled in the art do not depart from this practicality
The scope and spirit of type, there can be a variety of flexible programs to realize the utility model.For example, the part as one embodiment
The feature for showing or describing can be used for another embodiment to obtain another embodiment.It these are only that the utility model is preferably feasible
Embodiment, not thereby limit to interest field of the present utility model, it is all to use the utility model specification and accompanying drawing content
The equivalence changes made, it is both contained within interest field of the present utility model.
Claims (10)
- A kind of 1. casing stabbing board stopping means, it is characterised in that including：Outer spacing ring, for being set in sleeve pipe, the outer spacing ring is hollow cylindrical, and its inwall sets taper thread；Interior spacing ring, on the inside of the outer spacing ring, the interior spacing ring is hollow cylindrical, which is provided with multiple axial directions and lacks Mouthful；The outer wall of the interior spacing ring is provided with the external screw thread to match with the taper thread；The inwall of the interior spacing ring is provided with Internal thread, it is in contact for the outer wall with sleeve pipe.
- 2. casing stabbing board stopping means according to claim 1, it is characterised in that the external screw thread has taper.
- 3. casing stabbing board stopping means according to claim 1, it is characterised in that the internal thread is serration screw thread.
- 4. casing stabbing board stopping means according to claim 1, it is characterised in that the axial gap is 4 to 8.
- 5. according to the described sleeve pipe centralizer stopping means of claim 1 or 4, it is characterised in that the height of the axial gap is small In the 1/4 of the height of the interior spacing ring.
- 6. casing stabbing board stopping means according to claim 1, it is characterised in that the interior spacing ring is provided with ring-type bottom Disk, the ring-type chassis are located at the interior spacing ring close to one end of the bottom of the axial gap.
- 7. casing stabbing board stopping means according to claim 1, it is characterised in that the first end of the outer spacing ring can be with Deformation.
- 8. according to the described sleeve pipe centralizer stopping means of claim 1 or 7, it is characterised in that the first end of the outer spacing ring Thickness be less than 2mm.
- 9. according to the described sleeve pipe centralizer stopping means of claim 1 or 7, it is characterised in that the first end of the outer spacing ring It is made up of multiple lobes not being in contact.
- 10. casing stabbing board stopping means according to claim 1, it is characterised in that the interior spacing ring is 2, described Outer spacing ring is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544187.0U CN207161001U (en) | 2017-05-17 | 2017-05-17 | A kind of casing stabbing board stopping means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544187.0U CN207161001U (en) | 2017-05-17 | 2017-05-17 | A kind of casing stabbing board stopping means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161001U true CN207161001U (en) | 2018-03-30 |
Family
ID=61709033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720544187.0U Active CN207161001U (en) | 2017-05-17 | 2017-05-17 | A kind of casing stabbing board stopping means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207161001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
| CN112360360A (en) * | 2020-12-03 | 2021-02-12 | 中国石油集团渤海钻探工程有限公司 | Limit clamp of non-coupling casing centralizer |
-
2017
- 2017-05-17 CN CN201720544187.0U patent/CN207161001U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
| CN111963078B (en) * | 2020-10-23 | 2020-12-15 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
| CN112360360A (en) * | 2020-12-03 | 2021-02-12 | 中国石油集团渤海钻探工程有限公司 | Limit clamp of non-coupling casing centralizer |
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