CN207144854U - Hydraulic centralizing device - Google Patents
Hydraulic centralizing device Download PDFInfo
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- CN207144854U CN207144854U CN201721061690.7U CN201721061690U CN207144854U CN 207144854 U CN207144854 U CN 207144854U CN 201721061690 U CN201721061690 U CN 201721061690U CN 207144854 U CN207144854 U CN 207144854U
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Abstract
It the utility model is related to the technical field of sleeve in oil field centralizer, it is a kind of hydraulic centralizing device, it includes connector drum, centralizer cylinder, lower connector drum, hydraulic plate is provided with hydraulic pressure through hole, disc is provided with mounting groove, supporting plate is provided with disc, the first bolt is fixedly connected between hydraulic plate and supporting plate, the second bolt is provided with upper counterbore, the 3rd bolt is provided with lower counterbore, limited block is provided with the spring mounting hole between hydraulic pressure through hole and spring.The utility model reasonable and compact in structure, it is easy for installation, shear pin is set to be broken automatically in the presence of hydraulic pressure, hydraulic drive hydraulic plate is displaced outwardly, hydraulic plate can realize that the radial direction of supporting plate is overhanging by the first bolt, stable support, the bonding quality of the displacement efficiency of cement mortar and cement sheath when being effective to ensure that the centralizer of bunch tube, and then improving well cementation can be established between bunch tube and the borehole wall.
Description
Technical field
The technical field of sleeve in oil field centralizer is the utility model is related to, is a kind of hydraulic centralizing device.
Background technology
During cased, due to the self-defect of pit shaft, such as the problems such as hole shrinkage, hole anomaly, hole deviation,
Cause to transfer to the bunch tube in well to glance off, be in the presence of it is narrow sliding spacing, sleeve pipe do not reach well cementation needed for it is placed in the middle
Degree requires, if carrying out well cementing operation in this condition, can have a strong impact on the displacement efficiency and cementing concrete of cementing slurry
The bonding quality of ring, unpredictable potential safety hazard is brought to oil well.
The content of the invention
The utility model provides a kind of hydraulic centralizing device, overcomes the deficiency of above-mentioned prior art, and it can effectively be solved
During transferring sleeve pipe due to the problem of pit shaft self-defect causes bunch tube deflection.
The technical solution of the utility model is realized by following measures：A kind of hydraulic centralizing device includes upper connecting cylinder
Body, centralizer cylinder, lower connector drum, upper connector drum, centralizer cylinder, lower connector drum are fixed successively from top to bottom to be connected
Connect, internal thread segment is provided with the inwall of upper connector drum, external thread section, centralizer cylinder are provided with the outer wall of lower connector drum
At least two mounting grooves are evenly equipped with the outer wall of body, are provided with and centralizer cylinder on the barrel of centralizer cylinder in mounting groove
The hydraulic pressure through hole of axis perpendicular, the hydraulic plate corresponding with hydraulic pressure through hole is provided with hydraulic pressure through hole, is set in hydraulic plate
There is spring through hole, the disc corresponding with mounting groove is provided with mounting groove, disc is in tank shape, is provided with disc and liquid
The concentric disc through hole of through hole is pressed, the diameter of disc through hole is more than the diameter of hydraulic pressure through hole, is provided with disc and disc phase
Corresponding supporting plate, the first bolt is provided with supporting plate, one end of the first bolt upper stud is fixedly connected with supporting plate, and first
The other end of bolt upper stud is fixedly connected through disc through hole with hydraulic plate, and two are at least evenly equipped between supporting plate and disc
Shear pin, the upper counterbore symmetrical on the first bolt axis and lower counterbore are provided with supporting plate, upper counterbore is with sinking
Axis perpendicular of the axis in hole all with centralizer cylinder, is provided with the second bolt in upper counterbore, and the one of the second bolt upper stud
End is fixedly connected through supporting plate with disc, centralizer cylinder, the other end of the second bolt upper stud and the head of the second bolt
It is all disposed within counterbore, is provided with sliding spacing between the bottom wall on the inside of the head of the second bolt and upper counterbore, in lower counterbore
The 3rd bolt is provided with, mounting means mounting means with second bolt upper counterbore in of the 3rd bolt in lower counterbore is complete
Identical, spring through hole is divided into two spring mounting holes up and down, spring peace by the first bolt and the screw rod of hydraulic plate fixed connection place
Fill the axis perpendicular of axis and first bolt in hole, spring be both provided with spring mounting hole, spring and hydraulic pressure through hole it
Between spring mounting hole in be provided with self-locking nail, self-locking nail is cylindrical, and fluted, one end top pressure of spring is set on self-locking nail
On the first bolt, the other end top pressure of spring is on self-locking nail.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
At least provided with a sealing ring between above-mentioned hydraulic plate and hydraulic pressure through hole.
On the outer wall of above-mentioned centralizer cylinder four mounting grooves are evenly equipped with along same level circumferencial direction.
The above-mentioned every group shear pin quantity between supporting plate and disc is four, and four shear pins are distributed on supporting plate
On.
Above-mentioned supporting plate is and centralizer barrel diameter identical arc plate.
The utility model reasonable and compact in structure, it is easy for installation, shear pin is broken automatically in the presence of hydraulic pressure, liquid
Pressure promote hydraulic plate be displaced outwardly, hydraulic plate can realize that the radial direction of supporting plate is overhanging by the first bolt, can bunch tube with
Stable support, the replacement of cement mortar when being effective to ensure that the centralizer of bunch tube, and then improving well cementation are established between the borehole wall
The bonding quality of efficiency and cement sheath.
Brief description of the drawings
Accompanying drawing 1 is half section schematic of the supporting plate of the best embodiment of the utility model in disc.
The half section schematic that accompanying drawing 2 stretches out for the supporting plate of the best embodiment of the utility model out of disc.
Coding in accompanying drawing is respectively：1 is upper connector drum, and 2 be centralizer cylinder, and 3 be lower connector drum, and 4 be hydraulic pressure
Through hole, 5 be mounting groove, and 6 be hydraulic plate, and 7 be disc, and 8 be supporting plate, and 9 be disc through hole, and 10 be the first bolt, and 11 be upper heavy
Hole, 12 be lower counterbore, and 13 be the second bolt, and 14 be the 3rd bolt, and 15 be shear pin, and 16 be spring mounting hole, and 17 be spring,
18 be self-locking nail, and 19 be sealing ring, and 20 be sliding spacing.
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 accompanying drawing 1,2, the hydraulic centralizing device includes upper connector drum 1, centralizer cylinder 2, lower connector drum 3, on
Connector drum 1, centralizer cylinder 2, lower connector drum 3 are fixedly connected sequentially from top to bottom, are set on the inwall of upper connector drum 1
There is internal thread segment, external thread section is provided with the outer wall of lower connector drum 3, at least two are evenly equipped with the outer wall of centralizer cylinder 2
Individual mounting groove 5, it is provided with the barrel of centralizer cylinder 2 in mounting groove 5 and leads to the hydraulic pressure of the axis perpendicular of centralizer cylinder 2
Hole 4, the hydraulic plate 6 corresponding with hydraulic pressure through hole 4 is provided with hydraulic pressure through hole 4, spring through hole is provided with hydraulic plate 6, pacified
The disc 7 corresponding with mounting groove 5 is provided with tankage 5, disc 7 is in tank shape, is provided with disc 7 and hydraulic pressure through hole 4
Concentric disc through hole 9, the diameter of disc through hole 9 are more than the diameter of hydraulic pressure through hole 4, are provided with disc 7 relative with disc 7
The supporting plate 8 answered, the first bolt 10 is provided with supporting plate 8, one end of the upper stud of the first bolt 10 is fixed with supporting plate 8 to be connected
Connect, the other end of the upper stud of the first bolt 10 is fixedly connected through disc through hole 9 with hydraulic plate 6, between supporting plate 8 and disc 7
Two shear pins 15 are at least evenly equipped with, the upper counterbore 11 on the distribution of the axisymmetrical of the first bolt 10 is provided with supporting plate 8
With lower counterbore 12, the axis perpendicular of the axis of upper counterbore 11 and lower counterbore 12 all with centralizer cylinder 2, set in upper counterbore 11
There is the second bolt 13, one end of the upper stud of the second bolt 13 is fixedly connected through supporting plate 8 with disc 7, centralizer cylinder 2, the
The head of the other end of the upper stud of two bolt 13 and the second bolt 13 is all disposed within counterbore 11, the head of the second bolt 13 with
Sliding spacing 20 is provided between the bottom wall of the upper inner side of counterbore 11, the 3rd bolt 14, the 3rd bolt 14 are provided with lower counterbore 12
Mounting means of the mounting means with the second bolt 13 in upper counterbore 11 in lower counterbore 12 is identical, the first bolt 10 with
Spring through hole is divided into two spring mounting holes 16 up and down, the axis of spring mounting hole 16 by the screw rod of the fixed connection place of hydraulic plate 6
With the axis perpendicular of the first bolt 10, spring 17 is both provided with spring mounting hole 16, between spring 17 and hydraulic pressure through hole 4
Spring mounting hole 16 in be provided with self-locking nail 18, self-locking nail 18 is cylindrical, set on self-locking nail 18 it is fluted, spring 17
One end top pressure is on the first bolt 10, and the other end top pressure of spring 17 is on self-locking nail 18.
The utility model is fixedly connected with bunch tube, carry out building the pressure in sleeve pipe operation when, the pressure at hydraulic pressure through hole 4
When power reaches the shear pressure of shear pin 15, shear pin 15 can be broken automatically, now hydraulic plate 6 promote the first bolt 10 to
Outer motion, the first bolt 10 drive supporting plate 8 radially overhanging, and the overhanging limit of supporting plate 8 depends on the head of the second bolt 13
The size of sliding spacing 20 between portion and the inner side bottom wall of upper counterbore 11, the also head of the 3rd bolt 14 are interior with lower counterbore 12
The size of sliding spacing 20 between the bottom wall of side, self-locking nail 18 moves as hydraulic plate 6 is outer together, when supporting plate 8 is extended to limit position
Postponing, the groove ends of self-locking nail 18 can stretch out out of spring mounting hole 16 and be stuck on hydraulic pressure through hole 4 under the effect of spring 17, this
When hydraulic plate 6 can not reach the purpose of self-locking with this, supporting plate 8 can be with well again to the medial motion of hydraulic pressure through hole 4
Stable support is formed between wall, and then ensure that the centralizer of well inner sleeve string.
Above-mentioned hydraulic centralizing device can be made further optimization and/or improvements according to being actually needed：
As shown in accompanying drawing 1,2, at least provided with a sealing ring 19 between hydraulic plate 6 and hydraulic pressure through hole 4.So can be with shape
Into good sealing, pressure can be suppressed when suppressing, until pressure can promote hydraulic plate 6, supporting plate 8 is smoothly stretched out,
Herein if sealing is bad, supporting plate 8 cannot normally stretch out, and have a strong impact on the new righting effect to bunch tube of this reality.
According to being actually needed four mounting grooves can be evenly equipped with the outer wall of centralizer cylinder 2 along same level circumferencial direction
5.It so can not only make to form stable support between the utility model and the borehole wall, but also the utility model four sides can be made equal
Even stress.
As shown in accompanying drawing 1,2, the quantity of shear pin 15 between every group of supporting plate 8 and disc 7 is four, four shear pins
15 are distributed in supporting plate 8.Supporting plate 8 can be by 10 uniform thrust of the first bolt so when building the pressure, and then is advantageous to
Protect supporting plate 8.
As shown in accompanying drawing 1,2, supporting plate 8 is and the diameter identical arc plate of centralizer cylinder 2.So supporting plate 8 is outside
Before stretching, a complete face of cylinder can be formed together with centralizer cylinder 2, when 8 overhanging supporting sheath pipe of supporting plate, again may be used
It is bonded well with the formation with the borehole wall, makes the support between supporting plate 8 and pit shaft more stable.
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.
Claims (8)
1. a kind of hydraulic centralizing device, it is characterised in that including upper connector drum, centralizer cylinder, lower connector drum, upper connecting cylinder
Body, centralizer cylinder, lower connector drum are fixedly connected sequentially from top to bottom, and internal thread is provided with the inwall of upper connector drum
Section, external thread section is provided with the outer wall of lower connector drum, at least two mounting grooves are evenly equipped with the outer wall of centralizer cylinder,
The hydraulic pressure through hole perpendicular with centralizer tubular axis is provided with mounting groove on the barrel of centralizer cylinder, in hydraulic pressure through hole
The hydraulic plate corresponding with hydraulic pressure through hole is provided with, spring through hole is provided with hydraulic plate, is provided with mounting groove and mounting groove
Corresponding disc, disc are in tank shape, are provided with the disc through hole concentric with hydraulic pressure through hole on disc, disc through hole it is straight
Footpath is more than the diameter of hydraulic pressure through hole, and the supporting plate corresponding with disc is provided with disc, the first spiral shell is provided with supporting plate
Bolt, one end of the first bolt upper stud are fixedly connected with supporting plate, the other end of the first bolt upper stud through disc through hole with
Hydraulic plate is fixedly connected, and two shear pins are at least evenly equipped between supporting plate and disc, are provided with supporting plate on first
The symmetrical upper counterbore of bolt axis and lower counterbore, the axis of the axis of upper counterbore and lower counterbore all with centralizer cylinder mutually hang down
Directly, the second bolt is provided with upper counterbore, one end of the second bolt upper stud is fixed through supporting plate with disc, centralizer cylinder
Connection, the other end of the second bolt upper stud and the head of the second bolt be all disposed within counterbore, the head of the second bolt with
Sliding spacing is provided between bottom wall on the inside of upper counterbore, the 3rd bolt is provided with lower counterbore, the 3rd bolt is in lower counterbore
Mounting means of the mounting means with the second bolt in upper counterbore it is identical, the first bolt and hydraulic plate fixed connection place
Spring through hole is divided into the axis perpendicular of two spring mounting holes up and down, the axis of spring mounting hole and the first bolt by screw rod,
Spring is both provided with spring mounting hole, self-locking nail, self-locking are provided with the spring mounting hole between spring and hydraulic pressure through hole
Follow closely it is cylindrical, set on self-locking nail it is fluted, one end top pressure of spring on the first bolt, the other end top pressure of spring from
On pinning.
2. hydraulic centralizing device according to claim 1, it is characterised in that between hydraulic plate and hydraulic pressure through hole at least provided with
One sealing ring.
3. hydraulic centralizing device according to claim 1 or 2, it is characterised in that along same level on the outer wall of centralizer cylinder
Circumferencial direction is evenly equipped with four mounting grooves.
4. hydraulic centralizing device according to claim 1 or 2, it is characterised in that every group of shear pin between supporting plate and disc
Quantity is four, and four shear pins are uniform on the supporting plate.
5. hydraulic centralizing device according to claim 3, it is characterised in that every group of shear pin number between supporting plate and disc
Measure as four, four shear pins are uniform on the supporting plate.
6. according to the hydraulic centralizing device described in claim 1 or 2 or 5, it is characterised in that supporting plate is and centralizer barrel diameter
Identical arc plate.
7. hydraulic centralizing device according to claim 3, it is characterised in that supporting plate is and centralizer barrel diameter identical
Arc plate.
8. hydraulic centralizing device according to claim 4, it is characterised in that supporting plate is and centralizer barrel diameter identical
Arc plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061690.7U CN207144854U (en) | 2017-08-23 | 2017-08-23 | Hydraulic centralizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721061690.7U CN207144854U (en) | 2017-08-23 | 2017-08-23 | Hydraulic centralizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207144854U true CN207144854U (en) | 2018-03-27 |
Family
ID=61669523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721061690.7U Active CN207144854U (en) | 2017-08-23 | 2017-08-23 | Hydraulic centralizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207144854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533218A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Scraping wall |
-
2017
- 2017-08-23 CN CN201721061690.7U patent/CN207144854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533218A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Scraping wall |
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