CN206903603U - Rotate righting casing guide - Google Patents
Rotate righting casing guide Download PDFInfo
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- CN206903603U CN206903603U CN201720829622.4U CN201720829622U CN206903603U CN 206903603 U CN206903603 U CN 206903603U CN 201720829622 U CN201720829622 U CN 201720829622U CN 206903603 U CN206903603 U CN 206903603U
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Abstract
It the utility model is related to the technical field of tools for downhole of oil field, it is a kind of rotation righting casing guide, it includes guide shoe body, centralizer body, ball disk body, toe-cap, the right-hand member of guide shoe body and the left end of centralizer body connect, the right-hand member of centralizer body is connected with the left end of ball disk body, and the right-hand member of ball disk body is connected with toe-cap.The utility model reasonable and compact in structure, when running into resistance point during sleeve pipe is transferred, centralizer body due to external diameter is larger and itself outer wall on carry evagination screw thread, therefore produce and rotate against between meeting and ball disk body, the centralizer body of rotation can roll to the barrier on the borehole wall, not only well can effectively be expanded, and then it is smoothly through resistance point, and the centralizer body of rotation can carry out secondary reparation to the borehole wall, effectively increase the quality of well cementation, the time of secondary drifting has been saved, has effectively reduced jam situation of the sleeve pipe in decentralization process.
Description
Technical field
The technical field of tools for downhole of oil field is the utility model is related to, is a kind of rotation righting casing guide.
Background technology
In the well cementation mode in oil field, sleeve pipe decentralization be well cementation before last procedure, guide shoe be in completion tubular string most
A kind of common instrument, but due to the borehole wall is not smooth enough, guide shoe is easy to run into resistance point during pipe string is transferred,
The difficulty of pipe string decentralization is so also just easily caused, the generation of card tubulose condition is resulted even in, delays the construction period, increase is applied
Work cost.
The content of the invention
The utility model provides a kind of rotation righting casing guide, overcomes the deficiency of above-mentioned prior art, it can have
Pipe string jam, decentralization are difficult caused by effect solves the problems, such as borehole wall out-of-flatness.
The technical solution of the utility model is realized by following measures：One kind rotation righting casing guide includes drawing
Shoes body, centralizer body, ball disk body, toe-cap, centralizer body are fixedly connected with guide shoe body, fixed on the inwall of guide shoe body
Support annulus is installed, supports and is provided with multiple first through hole on annulus, be set with mandrel in the inner ring of support annulus, propping up
The positive stop lug boss that annular is installed with the guide shoe inner body wall on the left of ring is held round, is provided with the right side of positive stop lug boss and mandrel
The mushroom head that left side is fixedly connected, the left side outer wall of mushroom head are acted against in the inner ring of positive stop lug boss, held round in mushroom head and branch
The spring being sleeved on mandrel is provided between ring, the left end top pressure of spring is on the right side of mushroom head, the right-hand member top of spring
It is pressed on the left side of support annulus, is provided with the screw thread of a plurality of evagination on the outer wall of centralizer body, inside the right-hand member of centralizer body
The branch sleeve that will be linked together inside the left end of ball disk body is provided with, the end between centralizer body and ball disk body
The ball spout of annular is provided with face, the ball of dimensional fits is provided with ball spout, the right side of ball disk body is fixed
Toe-cap is connected with, multiple second through holes are provided with toe-cap.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
Above-mentioned ball disk body includes ball cylinder, ball annulus, and ball annulus is arranged on the left side of ball cylinder,
Connection annulus is provided with the right side of centralizer body, from left to right successively elevated first is provided with the outer wall of branch sleeve
Annular mounting groove, the second annular mounting groove, the endocyclic outer wall for connecting annulus are fixedly connected with first annular mounting groove, ball annulus
Connected annulus is leaned and is limited in the second mounting groove, and the right side of ball cylinder is fixedly connected with toe-cap.
The quantity of above-mentioned ball spout is at least two, and the ball of matching size conjunction is both provided with every ball spout.
Above-mentioned toe-cap is hemispherical cambered surface housing.
Above-mentioned guide shoe body, centralizer body, ball disk body, toe-cap outer surface on be both provided with corrosion-inhibiting coating.
The utility model reasonable and compact in structure, when running into resistance point during sleeve pipe is transferred, centralizer body is due to external diameter
The screw thread of evagination is carried on larger and itself outer wall, therefore produces and rotates against between meeting and ball disk body, the righting of rotation
Cognition is rolled to the barrier on the borehole wall, and not only well can effectively be expanded, and then is smoothly through resistance point, and
And the centralizer body of rotation can carry out secondary reparation to the borehole wall, effectively increase the quality of well cementation, saved secondary drifting when
Between, effectively reduce jam situation of the sleeve pipe in decentralization process.
Brief description of the drawings
Accompanying drawing 1 is the main view half section schematic of the best embodiment of the utility model.
Coding in accompanying drawing is respectively：1 is guide shoe body, and 2 be positive stop lug boss, and 3 be mushroom head, and 4 be mandrel, and 5 be spring,
6 be support annulus, and 7 be first through hole, and 8 be centralizer body, and 9 be connection annulus, and 10 be ball cylinder, and 11 be ball annulus, and 12 are
Ball, 13 be branch sleeve, and 14 be first annular mounting groove, and 15 be the second annular mounting groove, and 16 be toe-cap, and 17 be second logical
Hole, 18 be screw thread.
Embodiment
The utility model is not limited by following embodiments, can according to the technical solution of the utility model and actual conditions come
Determine specific embodiment.
In the utility model, for the ease of description, the description of the relative position relation of each part is according to specification
The Butut mode of accompanying drawing 1 is described, such as：The position relationship of upper and lower, left and right etc. is the Butut according to Figure of description 1
Direction determines.
The utility model is further described with reference to embodiment and accompanying drawing：
As shown in Figure 1, the rotation righting casing guide includes guide shoe body 1, centralizer body 8, ball disk body, toe-cap
16, centralizer body 8 is fixedly connected with guide shoe body 1, and support annulus 6 is installed with the inwall of guide shoe body 1, supports annulus
Multiple first through hole 7 are provided with 6, mandrel 4 is set with the inner ring of support annulus 6, the guide shoe sheet in the left side of support annulus 6
The positive stop lug boss 2 of annular is installed with the inwall of body 1, the right side of positive stop lug boss 2 is provided with what is be fixedly connected with the left side of mandrel 4
Mushroom head 3, the left side outer wall of mushroom head 3 are acted against in the inner ring of positive stop lug boss 2, are set between mushroom head 3 and support annulus 6
There is the spring 5 being sleeved on mandrel 4, the left end top pressure of spring 5 on the right side of mushroom head 3, propping up by the right-hand member top pressure of spring 5
On the left side for holding round ring 6, the screw thread 18 of a plurality of evagination is provided with the outer wall of centralizer body 8, is set inside the right-hand member of centralizer body 8
The branch sleeve 13 that will be linked together inside the left end of ball disk body is equipped with, between centralizer body 8 and ball disk body
The ball spout of annular is provided with end face, the ball 12 of dimensional fits, the right side of ball disk body are provided with ball spout
Toe-cap 16 is fixedly connected with, multiple second through holes 17 are provided with toe-cap 16.The external diameter of above-mentioned centralizer body 8 be more than guide shoe body 1,
The external diameter of ball cylinder 10, toe-cap 16.When running into resistance point during sleeve pipe is transferred, centralizer body 8 is because external diameter is larger and oneself
The screw thread 18 of evagination is carried on body outer wall, therefore produces and rotates against between meeting and ball disk body, the meeting pair of centralizer body 8 of rotation
Barrier on the borehole wall is rolled, and not only well can effectively be expanded, and then is smoothly through resistance point, and is rotated
Centralizer body 8 can carry out secondary reparation to the borehole wall, effectively increase the quality of well cementation, saved the time of secondary drifting, had
Effect reduces jam situation of the sleeve pipe in decentralization process.
Above-mentioned rotation righting casing guide can be made further optimization and/or improvements according to being actually needed：
As shown in Figure 1, ball disk body includes ball cylinder 10, ball annulus 11, and ball annulus 11 is arranged on ball
On the left side of cylinder 10, connection annulus 9 is provided with the right side of centralizer body 8, is provided with the outer wall of branch sleeve 13
Elevated first annular mounting groove 14, the second annular mounting groove 15 successively from left to right, connect the endocyclic outer wall and first of annulus 9
Annular mounting groove 14 is fixedly connected, and ball annulus 11 is connected annulus 9 and leans and be limited in the second mounting groove 15, ball cylinder
10 right side is fixedly connected with toe-cap 16.During sleeve pipe is transferred, such as jam, the position really rotated is the second ring
Between shape mounting groove 15 and ball annulus 11.
As shown in Figure 1, the quantity of ball spout is at least two, and matching size conjunction is both provided with every ball spout
Ball 12.More ball spout can ensure that the rotation of centralizer body 8 is more stable.
As shown in Figure 1, toe-cap 16 is hemispherical cambered surface housing.
As shown in Figure 1, it is both provided with anti-corrosion on the outer surface of guide shoe body 1, centralizer body 8, ball disk body, toe-cap 16
Coating.The erosion rate of device outer surface can so be slowed down, extend the service life of setting.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal implementation
Effect, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.
The use process of the best embodiment of the utility model：
When in use, guide shoe body 1 is fixedly connected with the bottom that sleeve pipe is restrained, when sleeve pipe tube bank is in the process of decentralization
In when running into the resistance point in well, the barrier on the borehole wall is rolled by the centralizer body 8 of rotation, not only well can be carried out
It is effective to expand, and resistance point can be smoothly through, inject mud after sleeve pipe is transferred in place, it is necessary into well and cemented the well
Operation, in the presence of spring 5, the mud in sleeve pipe can promote mushroom head 3 to move to right, so by mushroom head 3 with it is spacing
Caused gap is entered in guide shoe body 1 between boss 2, and mud is by supporting the first through hole 7 on annulus 6, then successively
Through centralizer body 8, branch sleeve 13, ball disk body, finally flowed out from the second through hole 17 on toe-cap 16.The rotation supporting positive cover
Pipe guide shoe not only meets the requirement of smoothly decentralization sleeve pipe, and can complete well cementing operation well.
Claims (8)
1. one kind rotation righting casing guide, it is characterised in that including guide shoe body, centralizer body, ball disk body, toe-cap, righting
Body is fixedly connected with guide shoe body, and support annulus is installed with the inwall of guide shoe body, is provided with support annulus more
Individual first through hole, mandrel is set with the inner ring of support annulus, the fixed peace in the guide shoe inner body wall on the left of support annulus
Equipped with annular positive stop lug boss, the mushroom head with being fixedly connected on the left of mandrel, a left side for mushroom head are provided with the right side of positive stop lug boss
Side outer wall is acted against in the inner ring of positive stop lug boss, and the spring being sleeved on mandrel is provided between mushroom head and support annulus,
The left end top pressure of spring is on the right side of mushroom head, and the right-hand member top pressure of spring is on the left side of support annulus, in centralizer body
Outer wall on be provided with the screw thread of a plurality of evagination, the right-hand member of centralizer body, which is internally provided with inside the left end by ball disk body, to be connected
Branch sleeve together, the ball spout of annular is provided with the end face between centralizer body and ball disk body, and ball is slided
The ball of dimensional fits is provided with groove, toe-cap is fixedly connected with the right side of ball disk body, multiple second are provided with toe-cap
Through hole.
2. rotation righting casing guide according to claim 1, it is characterised in that ball disk body includes ball cylinder, rolling
Pearl annulus, ball annulus are arranged on the left side of ball cylinder, and connection annulus is provided with the right side of centralizer body, connection
Elevated first annular mounting groove, the second annular mounting groove successively from left to right are provided with the outer wall of sleeve, connects annulus
Endocyclic outer wall is fixedly connected with first annular mounting groove, and ball annulus is connected annulus and leans and be limited in the second mounting groove,
The right side of ball cylinder is fixedly connected with toe-cap.
3. rotation righting casing guide according to claim 1 or 2, it is characterised in that the quantity of ball spout is at least two
Bar, the ball of matching size conjunction is both provided with every ball spout.
4. rotation righting casing guide according to claim 1 or 2, it is characterised in that toe-cap is hemispherical cambered surface shell
Body.
5. rotation righting casing guide according to claim 3, it is characterised in that toe-cap is hemispherical cambered surface housing.
6. rotation righting casing guide according to claim 3, it is characterised in that above-mentioned guide shoe body, centralizer body, ball
Disk body, toe-cap outer surface on be both provided with corrosion-inhibiting coating.
7. rotation righting casing guide according to claim 4, it is characterised in that above-mentioned guide shoe body, centralizer body, ball
Disk body, toe-cap outer surface on be both provided with corrosion-inhibiting coating.
8. the rotation righting casing guide according to claim 1 or 2 or 5, it is characterised in that above-mentioned guide shoe body, righting
Body, ball disk body, toe-cap outer surface on be both provided with corrosion-inhibiting coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829622.4U CN206903603U (en) | 2017-07-10 | 2017-07-10 | Rotate righting casing guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829622.4U CN206903603U (en) | 2017-07-10 | 2017-07-10 | Rotate righting casing guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903603U true CN206903603U (en) | 2018-01-19 |
Family
ID=61311536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720829622.4U Active CN206903603U (en) | 2017-07-10 | 2017-07-10 | Rotate righting casing guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403883A (en) * | 2018-12-26 | 2019-03-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of dedicated throttling of casing job is anti-down to return rotary guide shoe and application method |
| CN113374443A (en) * | 2021-07-21 | 2021-09-10 | 濮阳三力诚信石油设备有限公司 | Self-rotating drillable reaming float shoe |
-
2017
- 2017-07-10 CN CN201720829622.4U patent/CN206903603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403883A (en) * | 2018-12-26 | 2019-03-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of dedicated throttling of casing job is anti-down to return rotary guide shoe and application method |
| CN113374443A (en) * | 2021-07-21 | 2021-09-10 | 濮阳三力诚信石油设备有限公司 | Self-rotating drillable reaming float shoe |
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