CN208184714U - T-type PDC sand cleaning device - Google Patents
T-type PDC sand cleaning device Download PDFInfo
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- CN208184714U CN208184714U CN201820723857.XU CN201820723857U CN208184714U CN 208184714 U CN208184714 U CN 208184714U CN 201820723857 U CN201820723857 U CN 201820723857U CN 208184714 U CN208184714 U CN 208184714U
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- protrusion
- backspin
- cleaning device
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- cylinder
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Abstract
The utility model discloses a kind of T-type PDC sand cleaning device, T-type PDC sand cleaning device includes cylinder, and the cylinder is the structure that middle part is small, both ends are big, is provided with the first chamfering at the position that the middle part of the cylinder is connect with both ends；The middle part of the cylinder is tiltedly installed with multiple strip projected parts along cylinder circumferencial direction, the strip projected parts include upper rotation protrusion and backspin protrusion, the inclined direction of the upper rotation protrusion and the backspin protrusion is on the contrary, be formed with runner between the adjacent upper backspin revolved between protrusion, adjacent is raised and between the upper rotation protrusion and backspin protrusion；Multiple PDC composite sheets are provided on each strip projected parts.The runner at middle part is arranged to T-type by T-type PDC sand cleaning device, when drilling fluid reaches upper end runner from lower end runner, since upper and lower two runners are arranged at T-shape, fluid is forced to change fluid direction of motion during the motion, so that tangential direction obtains high flow velocities, reaches and wash away the better effect of sand setting.
Description
Technical field
The utility model belongs to petroleum, natural gas and geological drilling technical field, and in particular to a kind of T-type PDC sand cleaning device.
Background technique
With the continuous progress of qualification exploration and development, high angle hole such as horizontal well, sidetrack horizontal well, extended reach well are increasingly
More, with the increase of wellbore hole deviation, it is also difficult therewith that the landwaste that drilling well generates carries out ground.Due to downhole debris cannot and
When remove, in drillng operation, the reaming that is hampered, bit freezing phenomenon happen occasionally, in turn result in drilling period extend, rate of penetration
The engineering problems such as low, drilling cost increase.There is a kind of eddy flow sand cleaning device that can clear up shaft bottom landwaste at present, but its runner occludes, holds
Easily adherency blocking, finishing well track is difficult when encountering hard formation, and elimination effect is bad.
Utility model content
In order to solve the above problems existing in the present technology, the utility model provides a kind of T-type PDC sand cleaning device.
The technical solution of the utility model is as follows:
T-type PDC sand cleaning device, including cylinder, the cylinder are middle part is small, both ends are big structure, the middle part of the cylinder with
The first chamfering is provided at the position of both ends connection；The middle part of the cylinder is tiltedly installed with multiple strips along cylinder circumferencial direction
Protrusion, the strip projected parts include upper rotation protrusion and backspin protrusion, the inclined direction of upper the rotation protrusion and the backspin protrusion
On the contrary, between the adjacent upper rotation protrusion, between adjacent backspin protrusion and the upper rotation protrusion and the backspin
Runner is formed between protrusion；Multiple PDC composite sheets are provided on each strip projected parts.
Preferably, the upper rotation protrusion and one end close to each other in the backspin protrusion are arc-shaped.
Preferably, the upper rotation protrusion and one end in the backspin protrusion away from each other are provided with the second chamfering.
Preferably, it is staggered between the upper rotation protrusion and backspin protrusion.
Preferably, the tilt angle of the upper rotation protrusion and the backspin protrusion is along 45 ° of the tubular axis direction.
Preferably, the top surface of the strip projected parts is arc surface identical with the cylinder body outer wall.
Preferably, the PDC composite sheet point two rows on each strip projected parts are set side by side.
Compared with prior art, technical solution provided by the utility model has the advantages that or advantage:
1, the runner at middle part is arranged to T-type by T-type PDC sand cleaning device provided by the utility model, and drilling fluid is flowed from lower end
When road reaches upper end runner, since upper and lower two runners are arranged at T-shape, fluid is forced to change fluid fortune during the motion
Dynamic direction reaches so that tangential direction obtains high flow velocities and washes away the better effect of sand setting.
2, T-type PDC sand cleaning device provided by the utility model is provided with PDC composite sheet at the top of strip bulge, as the T
Type PDC sand cleaning device encounters cutting bed or lower borehole wall irregular conditions in rotary course, and it is former to can use the cutting of PDC composite sheet
Reason easily carries out cleaning finishing, realizes the more flat and smooth effect of borehole track；Moreover, PDC cutting effect hard scrapes effect than other
Fruit resistance is small, also greatly reduces to drilling tool reaction torque itself, improves the safety that drilling tool uses.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram in the middle part of the utility model embodiment middle cylinder body.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of T-type PDC sand cleaning device, including cylinder 1, described
Cylinder is the structure that middle part is small, both ends are big, is provided with the first chamfering 2 at the position that the middle part of cylinder 1 is connect with both ends；Cylinder 1
Middle part be tiltedly installed with multiple strip projected parts along cylinder circumferencial direction, the strip projected parts include that upper rotation protrusion 3 and backspin are convex
Play 4, the inclined direction of upper rotation protrusion 3 and backspin protrusion 4 on the contrary, backspin protrusion 4 between adjacent upper rotation protrusion 3, adjacent it
Between and upper rotation protrusion 3 and backspin protrusion 4 between be formed with runner 5；It is multiple that multiple PDC are provided on each strip projected parts
Close piece 6.
It should be noted that the stack shell 1 and the strip projected parts of T-type PDC sand cleaning device provided by the embodiment of the utility model
For integrated molding structure, PDC composite sheet 6 is welded on the strip projected parts.The T-type PDC can be improved in integrated molding
The integral strength of sand cleaning device, and its is streamlined more smooth.
In the specific implementation process, in order to enable the corner angle of upper rotation protrusion 3 and backspin protrusion 4 do not hinder to fluid flowing
Movement in road, preferably, will be close to each other one in upper rotation protrusion 3 and backspin protrusion 4 in the utility model embodiment
End is disposed as arc-shaped.In this way, fluid can be along upper rotation protrusion 3 when fluid enters upper end runner from lower end runner
End circular arc flow into upper end runner, circular arc will not only hinder fluid, but also be also possible that fluid in circular arc tangential line direction
High flow velocities are obtained, reaches and washes away the better effect of sand setting.
In the specific implementation process, preferably, in upper rotation protrusion 3 and backspin protrusion in the utility model embodiment
One end on 4 away from each other is provided with the second chamfering 7.Second chamfering is set, the T-type PDC sand cleaning device is enabled to more to hold
Easily disengaging wellbore avoids because the top surface corner angle of upper rotation protrusion 3 and backspin protrusion 4 influence and Caton occur；Moreover, setting second
Chamfering can be such that it cooperates with the first chamfering, improve the overall aesthetics of cylinder.
In the specific implementation process, preferably, upper in the utility model embodiment revolve protrusion 3 and backspin protrusion 4
Between be staggered.It is staggered, when so that the fluid in a lower end runner entering upper end runner, can alternately flow in this way
The fluid of different upper end runners, different lower end runners collides in a upper end runner, can increase the impact of fluid
Power further increases the effect for washing away desilting.
In the specific implementation process, if it is upper rotation protrusion 3 and backspin protrusion 4 tilt angle it is too small, fluid from
When lower end runner enters upper end runner, the flow velocity that tangential direction obtains is not fast enough, will affect the effect for washing away desilting, if upper rotation
The tilt angle of protrusion 3 and backspin protrusion 4 is excessive, then flow velocity of the fluid in runner will receive influence again, causes to wash away out
Desilting can not be taken away with fluid.In order to avoid there is such situation, preferably, upper rotation in the utility model embodiment
The tilt angle of protrusion 3 and backspin protrusion 4 is along 45 ° of the tubular axis direction.It is preferably washed away in this way, can ensure
Effect, but the desilting for enabling to wash away out is taken away with fluid, avoids blocking.
In the specific implementation process, preferably, in the utility model embodiment, the top surface of the strip projected parts is
Arc surface identical with the cylinder body outer wall.In this way, can be avoided the corner angle influence T-type that the strip lifts top surface
Disengaging of the PDC sand cleaning device in wellbore improves the smoothness of the T-type PDC sand cleaning device disengaging wellbore.
In the specific implementation process, PDC composite sheet 6 be for being modified to irregular cutting bed or the lower borehole wall,
So that borehole track is more flat and smooth, in order to improve the efficiency of finishing, preferably, in the utility model embodiment
PDC composite sheet 6 on each strip projected parts is divided equally two rows and is set side by side, that is, muti-piece PDC piece is divided into two rows, compact
Ground is in juxtaposition, in this way, when the T-type PDC sand cleaning device rotates drive on boldly in the wellbore, all PDC pieces are not together to advising
Cutting bed or the lower borehole wall then is modified, and dressing efficiency is improved.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
The product of various other forms, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted
The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.
Claims (7)
1.T type PDC sand cleaning device, including cylinder, which is characterized in that the cylinder is the structure that middle part is small, both ends are big, the cylinder
The position that is connect with both ends of middle part at be provided with the first chamfering；The middle part of the cylinder is tiltedly installed with along cylinder circumferencial direction
Multiple strip projected parts, the strip projected parts include that upper rotation protrusion and backspin are raised, the raised and described backspin protrusion of the upper rotation
Inclined direction on the contrary, between the adjacent upper rotation protrusion, between adjacent backspin protrusion and the upper rotation protrusion and
Runner is formed between the backspin protrusion；Multiple PDC composite sheets are provided on each strip projected parts.
2. T-type PDC sand cleaning device according to claim 1, which is characterized in that in the upper rotation protrusion and backspin protrusion
One end close to each other is arc-shaped.
3. T-type PDC sand cleaning device according to claim 1, which is characterized in that in the upper rotation protrusion and backspin protrusion
One end away from each other is provided with the second chamfering.
4. T-type PDC sand cleaning device according to claim 1, which is characterized in that the upper rotation protrusion and the backspin protrusion
Between be staggered.
5. T-type PDC sand cleaning device according to claim 1, which is characterized in that the upper rotation protrusion and the backspin protrusion
Tilt angle is along 45 ° of the tubular axis direction.
6. T-type PDC sand cleaning device according to claim 1, which is characterized in that the top surface of the strip projected parts is and the cylinder
The identical arc surface of external wall.
7. T-type PDC sand cleaning device according to claim 1, which is characterized in that the PDC on each strip projected parts
Composite sheet point two rows are set side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820723857.XU CN208184714U (en) | 2018-05-15 | 2018-05-15 | T-type PDC sand cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820723857.XU CN208184714U (en) | 2018-05-15 | 2018-05-15 | T-type PDC sand cleaning device |
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| Publication Number | Publication Date |
|---|---|
| CN208184714U true CN208184714U (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820723857.XU Active CN208184714U (en) | 2018-05-15 | 2018-05-15 | T-type PDC sand cleaning device |
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| CN (1) | CN208184714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412459A (en) * | 2018-05-15 | 2018-08-17 | 成都奥尤盖茨科技发展有限公司 | T-type PDC sand cleaning devices |
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2018
- 2018-05-15 CN CN201820723857.XU patent/CN208184714U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412459A (en) * | 2018-05-15 | 2018-08-17 | 成都奥尤盖茨科技发展有限公司 | T-type PDC sand cleaning devices |
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