CN207513582U - A kind of well cementing operation float shoe - Google Patents
A kind of well cementing operation float shoe Download PDFInfo
- Publication number
- CN207513582U CN207513582U CN201721612816.5U CN201721612816U CN207513582U CN 207513582 U CN207513582 U CN 207513582U CN 201721612816 U CN201721612816 U CN 201721612816U CN 207513582 U CN207513582 U CN 207513582U
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- China
- Prior art keywords
- guide head
- float shoe
- transmission shaft
- connector sleeve
- well cementing
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Abstract
The utility model provides a kind of well cementing operation float shoe, including guide head and float shoe shell, further include the power transmission shaft assembly with float shoe cage connection, and the connector sleeve with guide head rotation connection, the connector sleeve is set on the power transmission shaft assembly, and the power transmission shaft assembly is contacted when float shoe is hampered with connector sleeve；The central axis of the guide head is deviateed in the working end of the guide head, guide head be equipped with for mud by mud flowing hole, the mud flowing hole is set on the side of the guide head working end.The utility model has many advantages, such as easy to operate, simple and compact for structure, and can realize the smooth cementing operation of high angle hole, horizontal well.
Description
Technical field
The utility model is related to well cementing operation field more particularly to a kind of well cementing operation float shoes.
Background technology
Well cementing operation is one of important link in oil drilling process, and float shoe is that a key in well cementing operation is attached
Part.Float shoe is typically mounted on the bottommost of well cementing pipe string, for well cementing pipe string to be guided smoothly to enter well, and provides the mistake of well cementation mud
Circulation road prevents cement mortar from returning in well cementing process.
With horizontal well, the extensive exploitation of high angle hole, underground situation is more complicated and changeable, and the borehole wall is irregular, wellbore contracting
The problems such as diameter, can all cause well cementing pipe string occurring situations such as being hampered, tripping in is difficult, not in place under tail pipe during tripping in, cause
Serious consequence.And the guide head of existing float shoe is to be threadedly coupled with float shoe shell, guide head can not change the channeling direction of float shoe,
When encountering hole anomaly, hole shrinkage, guide head will be stuck at hole anomaly position float shoe at this time, i.e., existing float shoe
It can not solve the problems, such as that well cementing pipe string is hampered during horizontal well, high angle hole tripping in, bad adaptability can not ensure admittedly complete
Well is smoothed out.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of easy to operate, structure
Simple and compact, and can realize the well cementing operation float shoe of the smooth cementing operation of high angle hole, horizontal well.
A kind of well cementing operation float shoe including guide head and float shoe shell, further includes the force transmission shaft with float shoe cage connection
Component and the connector sleeve with guide head rotation connection, the connector sleeve are set on the power transmission shaft assembly, the force transmission shaft
Component is contacted when float shoe is hampered with connector sleeve；The central axis of the guide head is deviateed in the working end of the guide head,
Guide head be equipped with for mud by mud flowing hole, the mud flowing hole be set on the guide head working end side.
As a further improvement of the above technical scheme：
The mud flowing hole is multiple, and multiple mud flowing holes are set along the circumferential direction of guide head working end side
It puts
The inside of the guide head is equipped with annular slot, and the connector sleeve is arranged at intervals with multiple close to one end of guide head
Elastic installing plate, each elastic installing plate are equipped with the fitting projection coordinated with the annular slot.
The power transmission shaft assembly is equipped with the axial limiting part for preventing connector sleeve gravity fall, is set on the inside of the connector sleeve
There is annular spacing groove, the axial limiting part is set in the annular spacing groove.
The power transmission shaft assembly includes force transmission shaft and rotary sleeve, and the rotary sleeve is sheathed on the force transmission shaft, the rotation
Pivoted housing is equipped with the abutting part contacted with connector sleeve close to one end of connector sleeve；The force transmission shaft and float shoe cage connection.
The limiting component for preventing the two from being relatively rotated when contacting is equipped between the connector sleeve and rotary sleeve,
The limiting component includes multiple along connector sleeve limiting card division circumferentially and multiple limitings along rotary sleeve circumferentially
Card slot, the limiting card division are engaged by clamping with limit card slot.
The abutting part is the annular abutment slot on the inside of rotary sleeve, and the limit card slot is set on the annular abutment slot
On.
The lateral wall of the rotary sleeve is equipped with multiple spiral side ribs for being used to stir mud, multiple spiral side rib edges
Rotary sleeve is circumferentially.
Be equipped on the float shoe shell, power transmission shaft assembly and guide head for mud by slurry channel, the mud
Flowing hole is connected with the slurry channel.
Being equipped in the slurry channel of the float shoe shell prevents the check valve that mud returns.
In order to solve the above technical problems, the utility model proposes technical solution be：
Compared with prior art, the utility model has the advantage of：
The utility model sets power transmission shaft assembly and connector sleeve, float shoe shell and power transmission between guide head and float shoe shell
Shaft assembly connects, and guide head is rotatablely connected with connector sleeve, and connector sleeve is set on power transmission shaft assembly, simple and compact for structure；
When float shoe is hampered, float shoe shell provides downward active force and power transmission shaft assembly is contacted with connector sleeve, at this time well cementation set
The active force of pipe can be transferred to guide head by float shoe shell, power transmission shaft assembly and connector sleeve so that the working end of guide head is supported
The position that is hampered is connected to, to provide guide head pivot point, ensure that being smoothed out for guide head spinning, and easy to operate.Together
When, the central axis of guide head is deviateed in the working end of guide head so that guide head can be avoided being hampered in spinning certain angle
Point or complicated fault, to guide the smooth tripping in of well cementing pipe string, and mud flowing hole is set on the side of guide head working end so that
Guide head forms torque under spray reaction forces, it is achieved thereby that the automatic rotation function of guide head, need not lift from the top and put down solid
The rotation of guide head can be realized in well casing string, simple and efficient to handle, efficient.The utility model is using power transmission shaft assembly, connection
Set and guide head working end, the form of mud flowing hole eccentric setting efficiently solve well cementing pipe string in high angle hole, horizontal well
The problem of tripping in process is hampered or tripping in is difficult ensures being smoothed out for later stage cementing operation operation.
Description of the drawings
The utility model will be hereinafter described in more detail based on embodiment and refer to the attached drawing.Wherein：
Fig. 1 is the half sectional view of utility model (be not hampered state).
Fig. 2 is the half sectional view of utility model (be hampered state).
Fig. 3 is the structure diagram of utility model.
Fig. 4 is the structure diagram of utility model guide head.
Fig. 5 is the structure diagram of utility model connector sleeve.
Fig. 6 is the structure diagram of utility model rotary sleeve.
Each label represents in figure：
1st, guide head；11st, working end；12nd, mud flowing hole；13rd, annular slot；2nd, float shoe shell；3rd, power transmission shaft assembly；
31st, force transmission shaft；32nd, rotary sleeve；321st, annular abutment slot；322nd, limit card slot；323rd, spiral side rib；4th, connector sleeve；41st, it is elastic
Installing plate；42nd, fitting projection；43rd, annular spacing groove；44th, card division is limited；5th, axial limiting part；6th, slurry channel；7th, it is unidirectional
Valve；8th, trip bolt.
Specific embodiment
Under will combine Figure of description and specific embodiment and the utility model will be described in further details, but not therefore
And limit the scope of protection of the utility model.
As shown in Figure 1 to Figure 3, the well cementing operation float shoe of the present embodiment, including guide head 1, float shoe shell 2, force transmission shaft
Component 3 and connector sleeve 4.Wherein, float shoe shell 2 connects with well cementing pipe series winding, and power transmission shaft assembly 3 is connect with float shoe shell 2, connector sleeve
4 are rotatablely connected with guide head 1, and connector sleeve 4 is set on power transmission shaft assembly 3, simple and compact for structure；When float shoe is hampered, float
Footwear shell 2 provides downward active force so that power transmission shaft assembly 3 is contacted with connector sleeve 4, at this time the active force of well cementing casing pipe
Can guide head 1 be transferred to by float shoe shell 2, power transmission shaft assembly 3 and connector sleeve 4 so that the working end 11 of guide head 1 is connected to
Be hampered position, to provide guide head 1 pivot point, ensure that being smoothed out for 1 spinning of guide head, easy to operate.This reality
It applies in example, the central axis of guide head 1 is deviateed in the working end 11 of guide head 1 so that guide head 1 can in spinning certain angle
Tight point or complicated fault are avoided, to guide the smooth tripping in of well cementing pipe string；Meanwhile guide head 1 is equipped with mud flowing hole 12,
Mud flowing hole 12 is set on the side of the working end 11 of guide head 1 so that and guide head 1 forms torque under spray reaction forces,
It is achieved thereby that the automatic rotation function of guide head 1, need not lift from the top and put down the rotation that guide head 1 can be realized in well cementing pipe string, behaviour
Make simple and efficient, efficient.The utility model is using 1 working end 11 of power transmission shaft assembly 3, connector sleeve 4 and guide head, mud overcurrent
The form of 12 eccentric setting of hole efficiently solves well cementing pipe string high angle hole, horizontal well tripping in process be hampered or tripping in is difficult
Problem ensures being smoothed out for later stage cementing operation operation.
As shown in Fig. 2, in the present embodiment, mud flowing hole 12 is in tilted layout along slurry transportation direction, and mud flowing hole
12 are set on the side of the working end 11 of guide head 1, cause the side of guide head 1 by the reaction generated between mud and the borehole wall
Power realizes the automatic rotation function of guide head 1.In other embodiments, the quantity of mud flowing hole 12 can be according to guide head 1
Rotary power requires to be configured, such as setting two to five, working end 11 side of multiple mud flowing holes 12 along guide head 1
Circumferentially so that the side of guide head 1 has enough rotary impetus.
As shown in Figure 4, Figure 5, in the present embodiment, the inside of guide head 1 is equipped with annular slot 13；Connector sleeve 4 is close to guiding
First 1 one end is equipped with multiple fitting projections 42, and fitting projection 42 is slidably matched with annular slot 13.It causes guide head 1 can phase
Connector sleeve 4 is rotated, while can the active force of well cementing pipe string be effectively transferred to guide head 1, realizes guide head 1 in the state that is hampered
Under spinning.In the present embodiment, connector sleeve 4 is equipped with multiple elastic installing plates 41, fitting projection 42 close to one end of guide head 1
It is installed on elastic installing plate 41, multiple elasticity installing plate 41 being provided at circumferentially spaced along guide head 1.Elastic installing plate 41 is spaced
The form of setting causes fitting projection 42 to have the installation space for being packed into annular slot 13, and fitting projection 42 is facilitated to be packed into annular snap
It is easy for installation, simple in structure in slot 13.
In the present embodiment, power transmission shaft assembly 3 is equipped with axial limiting part 5；The inside of connector sleeve 4 is equipped with annular spacing groove
43, axial limiting part 5 is set in annular spacing groove 43.In float shoe normally casing into state, axial limiting part 5 and annular spacing groove
43 upper rib limiting cooperation, effectively prevents 4 gravity fall of connector sleeve, ensure that the guide head 1 being installed on connector sleeve 4
In the axial position of float shoe normally casing into state, being smoothed out for well cementation ensure that；When float shoe is hampered state, axial limiting part
5 move in 43 inner axis of annular spacing groove, so that connector sleeve 4 contacts the abutting work for providing guide head 1 with power transmission shaft assembly 3
Firmly, ensure being smoothed out for 1 spinning of guide head.
In a preferred embodiment, power transmission shaft assembly 3 includes force transmission shaft 31 and rotary sleeve 32.Wherein, connector sleeve 4 is sheathed on biography
One end of power axis 31, the other end of force transmission shaft 31 are threadedly coupled with float shoe shell 2, and pass through 8 locking positioning of trip bolt, to protect
Demonstrate,prove effective transmission of well cementing pipe string active force；Rotary sleeve 32 is sheathed on force transmission shaft 31, and the lateral wall of rotary sleeve 32 is equipped with more
A spiral side rib 323, multiple spiral side ribs 323 circumferentially, effectively to stir mud, improve well cementation matter along rotary sleeve 32
Amount.
In the present embodiment, limiting component is equipped between connector sleeve 4 and rotary sleeve 32, which obviate connector sleeve 4 and rotary sleeves
32 produce relative rotation when contacting, and ensure that the active force of well cementing pipe string and can effectively be transferred to guide head 1.The present embodiment
In, limiting component includes four limiting card divisions 44 and four limit card slots 322, limits card division 44 and limit card slot 322 1 is a pair of
Should be clamped, four limiting card divisions 44 along connector sleeve 4 circumferentially, four limit card slots 322 along rotary sleeve 32 circumferentially.
In other embodiments, limiting card division 44 can be also set on rotary sleeve 32, limit card slot 322 is set on connector sleeve 4；Together
When, as long as the quantity of limiting card division 44 and limit card slot 322 can ensure that connector sleeve 4 is not produced with rotary sleeve 32 when contacting
It is raw to relatively rotate.
In the present embodiment, rotary sleeve 32 is equipped with abutting part close to one end of connector sleeve 4, when float shoe is hampered state, abuts
Portion is contacted with connector sleeve 4, and the working end 11 of guide head 1 is connected to the position that is hampered.As shown in fig. 6, abutting part is ring
Shape abuts slot 321, and annular abutment slot 321 is set on the madial wall of rotary sleeve 32, and limit card slot 322 is set on annular abutment slot 321,
Which ensure that effective transmission and reliable limiting of the connector sleeve 4 with the intermolecular forces of rotary sleeve 32, and it is simple and compact for structure.
In the present embodiment, be equipped on float shoe shell 2, power transmission shaft assembly 3 and guide head 1 for mud by slurry channel
6, mud flowing hole 12 is connected with slurry channel 6.In the present embodiment, check valve 7 is equipped in the slurry channel 6 of float shoe shell 2,
Returning for mud is effectively prevented, check valve 7 is bolted in float shoe shell 2.
In the present embodiment, guide head is spade-type guide head, causes guide head 1 that can avoid meeting in spinning certain angle
Resistance point or complicated fault, ensure that the smooth tripping in of well cementing pipe string, in other embodiments, as long as can ensure guide head 1
Working end 11 deviate guide head 1 central axis guide head is facilitated to avoid being hampered the guiding header structure of position should all be in this practicality newly
In the protection domain of type.
In the present embodiment, in high angle hole, horizontal cementing operation, float shoe is connected to by well cementation by float shoe shell 2
The bottom of pipe string, later tripping in well cementing pipe string.It is fashionable under well cementing pipe string such as Fig. 1, rotary sleeve 32 with connector sleeve 4 mutually solely
Vertical, rotary sleeve 32 is freely rotatable；Such as Fig. 2, when well cementing pipe string tripping in is hampered, the working end 11 of guide head 1 and hole anomaly
Place's contact, well cementing pipe string move on small segment distance, at this time the limit card slot 322 in rotary sleeve 32 and the limiting on connector sleeve 4
Card division 44 is engaged by clamping, and the weight of well cementing pipe string is transferred to guide head 1 by rotary sleeve 32 and connector sleeve 4, at this point, with guide head
1 working end 11 is fulcrum, using the side of guide head 1 by the reaction force generated between mud and the borehole wall, drives guide head 1
The position that is hampered is left in spinning.It, which without well cementing pipe string lift from the top and put down, can leave the position that is hampered, and improve well cementation efficiency
And quality, ensure that well cementing pipe string continues smooth tripping in.
Although the present utility model has been described by reference to the preferred embodiments, but in the model for not departing from the utility model
In the case of enclosing, various improvement can be carried out to it and component therein can be replaced with equivalent.Especially, as long as not depositing
In structural conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The utility model
It is not limited to specific embodiment disclosed herein, but all technical solutions including falling within the scope of the appended claims.
Claims (10)
1. a kind of well cementing operation float shoe, including guide head and float shoe shell, which is characterized in that further include and float shoe cage connection
Power transmission shaft assembly and connector sleeve with guide head rotation connection, the connector sleeve is set on the power transmission shaft assembly, institute
Power transmission shaft assembly is stated to contact with connector sleeve when float shoe is hampered；Deviate in the guide head working end of the guide head
Mandrel line, guide head be equipped with for mud by mud flowing hole, the mud flowing hole be set on the guide head working end
Side.
2. well cementing operation float shoe according to claim 1, which is characterized in that the mud flowing hole is multiple to be multiple
The mud flowing hole is circumferentially disposed along guide head working end side.
3. well cementing operation float shoe according to claim 1, which is characterized in that the inside of the guide head is equipped with annular snap
Slot, the connector sleeve are arranged at intervals with multiple elastic installing plates close to one end of guide head, and each elastic installing plate is equipped with
With the fitting projection of annular slot cooperation.
4. well cementing operation float shoe according to claim 2, which is characterized in that the power transmission shaft assembly is equipped with the company of preventing
The axial limiting part of female connector gravity fall, the inside of the connector sleeve are equipped with annular spacing groove, and the axial limiting part is set on institute
It states in annular spacing groove.
5. well cementing operation float shoe according to any one of claims 1 to 4, which is characterized in that the power transmission shaft assembly
Including force transmission shaft and rotary sleeve, the rotary sleeve is sheathed on the force transmission shaft, and the rotary sleeve is set close to one end of connector sleeve
There is the abutting part contacted with connector sleeve；The force transmission shaft and float shoe cage connection.
6. well cementing operation float shoe according to claim 5, which is characterized in that be equipped between the connector sleeve and rotary sleeve
For the limiting component for preventing the two from being relatively rotated when contacting, the limiting component includes multiple along connector sleeve circumferential direction cloth
The limiting card division put and multiple limit card slots along rotary sleeve circumferentially, the limiting card division are matched with limit card slot clamping
It closes.
7. well cementing operation float shoe according to claim 6, which is characterized in that the abutting part is on the inside of rotary sleeve
Annular abutment slot, the limit card slot be set on the annular abutment slot on.
8. well cementing operation float shoe according to claim 5, which is characterized in that the lateral wall of the rotary sleeve is equipped with more
It is a for stirring the spiral side rib of mud, multiple spiral side ribs along rotary sleeve circumferentially.
9. well cementing operation float shoe according to any one of claims 1 to 4, which is characterized in that the float shoe shell passes
Be equipped on power shaft assembly and guide head for mud by slurry channel, the mud flowing hole and the slurry channel connect
It is logical.
10. well cementing operation float shoe according to claim 9, which is characterized in that in the slurry channel of the float shoe shell
Equipped with the check valve for preventing mud from returning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612816.5U CN207513582U (en) | 2017-11-27 | 2017-11-27 | A kind of well cementing operation float shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612816.5U CN207513582U (en) | 2017-11-27 | 2017-11-27 | A kind of well cementing operation float shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513582U true CN207513582U (en) | 2018-06-19 |
Family
ID=62541780
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721612816.5U Active CN207513582U (en) | 2017-11-27 | 2017-11-27 | A kind of well cementing operation float shoe |
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| Country | Link |
|---|---|
| CN (1) | CN207513582U (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
- 2017-11-27 CN CN201721612816.5U patent/CN207513582U/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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