CN211287523U - Resistance reducing device - Google Patents
Resistance reducing device Download PDFInfo
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- CN211287523U CN211287523U CN201921605170.7U CN201921605170U CN211287523U CN 211287523 U CN211287523 U CN 211287523U CN 201921605170 U CN201921605170 U CN 201921605170U CN 211287523 U CN211287523 U CN 211287523U
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- rotating
- mandrel
- rotating device
- telecontrol equipment
- dabber
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Abstract
The utility model relates to a petroleum and natural gas downhole tool field, concretely relates to fairing, including first dabber, first rotary device, second dabber, first telecontrol equipment, second telecontrol equipment, first outer barrel, first rotary device is connected with first dabber, and second rotary device is connected with first rotary device, and the second dabber is connected with first telecontrol equipment, and first telecontrol equipment is connected with first outer barrel, and the second telecontrol equipment is connected with first outer barrel. When the pressure in the water hole of the drill string is increased, the first moving device and the second moving device move linearly along the axis of the first mandrel, and the first rotating device generates rotating motion during linear motion to drive the second rotating device to rotate; when the pressure in the water hole of the drill stem is reduced, the elastic device reversely pushes, the first rotating device and the second rotating device reversely rotate to generate axial and circumferential bidirectional vibration, the friction between the drill stem and the well wall can be greatly reduced, the problem of well drilling pressure supporting can be effectively solved, and stick-slip drill clamping can be effectively inhibited at the same time, so that the aims of improving the well drilling efficiency and ensuring the safety of the drill stem are fulfilled.
Description
Technical Field
The utility model relates to a petroleum and natural gas instrument field in the pit, concretely relates to fairing.
Background
In the field of petroleum and natural gas, in the process of directional well drilling, when a drill string drills downwards, large frictional resistance is gradually generated between the drill string and a well wall, so that the drilling pressure cannot be timely transmitted to a drill bit, and the pressure supporting phenomenon is generated. Meanwhile, the length of the drill string is increased, so that the drill string is very difficult to rotate underground, the stick-slip vibration phenomenon is generated, the stick-slip phenomenon is movement between complete adhesion contact and sliding contact, the torque fluctuation is large in the stick-slip process of the drill string, the drilling efficiency is influenced, the existing drag reduction devices at home and abroad are single axial vibration, and when the well depth reaches a certain degree, the drag reduction effect is remarkably reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for a fairing.
A drag reduction device comprises
A first mandrel;
a first rotating device;
the first rotating device is connected with the first spindle;
a second rotating device;
a second mandrel;
a first motion device;
a second motion device;
a first outer cylinder;
the second rotating device is connected with the first rotating device;
the second mandrel is connected with the first movement device;
the second mandrel is connected with the first outer cylinder;
the first movement device is connected with the first outer cylinder;
the second movement device is connected with the first outer cylinder.
The first rotating device is a hollow cylinder;
the first rotation means comprises an inner rotating surface thread;
the first rotation means comprises an outer rotational surface spline;
the first mandrel comprises an outer rotational surface thread;
the first rotating means inner rotating surface thread is in threaded connection with the first mandrel outer rotating surface.
The fairing also comprises:
a second outer barrel;
the second outer barrel includes an inner rotating surface spline;
and the second outer cylinder body inner rotating surface spline is connected with the first rotating device outer rotating surface spline.
The fairing also comprises:
a centralizing sleeve;
the righting sleeve is connected with the first spindle;
the first mandrel is connected with the second rotating device.
The fairing also comprises:
a half ring;
a nut sleeve;
the semi-ring is connected with the first core shaft;
the nut sleeve is connected with the semi-ring;
the nut sleeve is connected with the second rotating device.
The fairing also comprises:
an elastic device;
one end of the elastic device is connected with the first rotating device; the other end of the elastic device is connected with the second mandrel;
the elastic device is connected with the first outer cylinder; the elastic device is connected with the first core shaft.
The elastic device is a disc spring.
The fairing also comprises:
a nut cushion;
the nut pad is connected with the first spindle.
Since the technical scheme is used, the beneficial effects of the utility model are that:
when the pressure in the water hole of the drill string is increased, the first moving device and the second moving device are pushed to generate linear motion along the axis of the first mandrel, the first moving device pushes the second mandrel to move, the second mandrel moves to push the elastic device to move, the second moving device pushes the elastic device to move, the elastic device moves to push the first rotating device to move along the linear motion along the axis of the first mandrel, and the first rotating device generates rotary motion during the linear motion due to the fact that the internal thread of the first rotating device is matched with the external thread of the first mandrel, and the second rotating device is driven to rotate; when the pressure of the elastic device in the water hole of the drill string is reduced, the second mandrel and the second movement device are pushed reversely to move, and the first rotating device and the second rotating device are caused to rotate reversely, so that axial and circumferential bidirectional vibration is generated simultaneously, friction between the drill string and the well wall is greatly reduced, the problem of pressure supporting in drilling can be effectively solved, and stick-slip drill sticking can be effectively inhibited, so that the aims of improving the drilling efficiency and ensuring the safety of the drill string are fulfilled.
Drawings
Fig. 1 is a schematic diagram of the principle of the drag reducing device of the present invention.
Fig. 2 is a schematic side view of the first mandrel according to the present invention.
Fig. 3 is a schematic axial view of a second rotating device according to the present invention.
Fig. 4 is a schematic view a-a of fig. 3.
Fig. 5 is a schematic axial view of the first rotating device of the present invention.
Fig. 6 is a partial schematic view of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Examples
As shown in fig. 1-6, a drag reduction device comprises a first mandrel 1, a first rotating device 7, a second rotating device 6, a second mandrel 10, a first moving device 11, a second moving device 12, a first outer cylinder 9, a first rotating device 7 connected with the first mandrel 1, a second rotating device 6 connected with the first rotating device 7, a second mandrel 10 connected with the first moving device 11, a second mandrel 10 connected with the first outer cylinder 9, a first moving device 11 connected with the first outer cylinder 9, and a second moving device 12 connected with the first outer cylinder 9.
The first rotation means 7 is a hollow cylinder, and the first rotation means 7 includes a first rotation means base 70, an inner rotation surface thread 71, an outer rotation surface spline 72, a large end surface 73, and a small end surface 74.
The first mandrel 1 comprises an external rotating surface thread 17.
The first rotation means 7 inner rotation surface thread 71 is connected with the first spindle 1 outer rotation surface thread 17.
The fairing further comprises a second outer barrel 6, the second outer barrel 6 comprising inner rotational surface splines 64, the inner rotational surface splines 64 of the second outer barrel 6 being connected with outer rotational surface splines 72 of the first rotating means 7.
The damping device further comprises a righting sleeve 3, the righting sleeve 3 is connected with the first mandrel 1, and the first mandrel 1 is connected with the second rotating device 6.
The resistance reducing device further comprises a semi-ring 4 and a nut sleeve 5, wherein the semi-ring 4 is connected with the first mandrel 1, the nut sleeve 5 is connected with the semi-ring 4, and the nut sleeve 5 is connected with the second rotating device 6.
The damping device further comprises an elastic device 8, one end of the elastic device 8 is connected with the first rotating device 7, the other end of the elastic device 8 is connected with the second mandrel 10, the elastic device 8 is connected with the first outer barrel 9, and the elastic device 8 is connected with the first mandrel 1.
The elastic means 8 is a disc spring.
The fairing further comprises a nut washer 2, and the nut washer 2 is connected with the first mandrel 1.
The first mandrel 1 comprises a first mandrel 1 base 10, a first surface of rotation 11, a second surface of rotation 12, a third surface of rotation 13, a fourth surface of rotation 14, a fifth surface of rotation 15, a sixth surface of rotation 16, an eighth surface of rotation 18, and a ninth surface of rotation 19.
The nut cushion 2 is connected with the first rotating surface 11, the centering sleeve 3 is connected with the third rotating surface 13, the semi-ring 4 is connected with the fifth rotating surface 15, the nut sleeve 5 is connected with the semi-ring 4, and the first movement device 11 is connected with the ninth rotating surface 19.
The second rotation means 6 comprises a base body 60, a bore 62, an end surface 66, an outer surface 63, an outer surface 61 of the second rotation means 6.
The first rotation means 7 comprises a first rotation means 7 base 70, splines 72, an end surface 73, an end surface 74, big end splines 721, small end splines 720.
The large end rotational surface spline 721 of the first rotational means 7 is connected with the rotational surface spline 64 in the second rotational means 6.
Since the technical scheme is used, the beneficial effects of the utility model are that:
when the pressure in the water hole of the drill string is increased, the first moving device 11 and the second moving device 12 are pushed to generate linear motion along the axis of the first mandrel 1, the first moving device 11 pushes the second mandrel 10 to move, the second mandrel 10 moves to push the elastic device 8 to move, the second moving device 12 pushes the elastic device 8 to move, the elastic device 8 moves to push the first rotating device 7 to generate linear motion along the axis of the first mandrel 1, and the first rotating device 7 generates rotary motion during the linear motion to drive the second rotating device 6 to rotate due to the fact that the internal thread of the first rotating device 7 is matched with the external thread of the first mandrel 1; when the pressure of the elastic device 8 in the water hole of the drill string is reduced, the second mandrel 10 and the second moving device 12 are pushed reversely to move, and the first rotating device 7 and the second rotating device 6 are caused to rotate reversely, so that axial and circumferential bidirectional vibration is generated at the same time, the friction between the drill string and the well wall is greatly reduced, the pressure supporting problem in the drilling process can be effectively solved, and stick-slip drill sticking can be effectively inhibited, so that the aims of improving the drilling efficiency and ensuring the safety of the drill string are fulfilled.
In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (8)
1. A fairing, its characterized in that: comprises that
A first mandrel;
a first rotating device;
the first rotating device is connected with the first spindle;
a second rotating device;
a second mandrel;
a first motion device;
a second motion device;
a first outer cylinder;
the second rotating device is connected with the first rotating device;
the second mandrel is connected with the first movement device;
the second mandrel is connected with the first outer cylinder;
the first movement device is connected with the first outer cylinder;
the second movement device is connected with the first outer cylinder.
2. Drag reducing device according to claim 1, characterized in that:
the first rotating device is a hollow cylinder;
the first rotation means comprises an inner rotating surface thread;
the first rotation means comprises an outer rotational surface spline;
the first mandrel comprises an outer rotational surface thread;
the first rotating means inner rotating surface thread is in threaded connection with the first mandrel outer rotating surface.
3. Drag reducing device according to claim 2, characterized in that:
further comprising:
a second outer barrel;
the second outer barrel includes an inner rotating surface spline;
and the second outer cylinder body inner rotating surface spline is connected with the first rotating device outer rotating surface spline.
4. Drag reducing device according to claim 3, characterized in that:
further comprising:
a centralizing sleeve;
the righting sleeve is connected with the first spindle;
the first mandrel is connected with the second rotating device.
5. Drag reducing device according to claim 4, characterized in that:
further comprising:
a half ring;
a nut sleeve;
the semi-ring is connected with the first core shaft;
the nut sleeve is connected with the semi-ring;
the nut sleeve is connected with the second rotating device.
6. Drag reducing device according to claim 5, characterized in that:
further comprising:
an elastic device;
one end of the elastic device is connected with the first rotating device; the other end of the elastic device is connected with the second mandrel;
the elastic device is connected with the first outer cylinder; the elastic device is connected with the first core shaft.
7. Drag reducing device according to claim 6, characterized in that:
the elastic device is a disc spring.
8. Drag reducing device according to claim 7, characterized in that:
further comprising:
a nut cushion;
the nut pad is connected with the first spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605170.7U CN211287523U (en) | 2019-09-25 | 2019-09-25 | Resistance reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605170.7U CN211287523U (en) | 2019-09-25 | 2019-09-25 | Resistance reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211287523U true CN211287523U (en) | 2020-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921605170.7U Active CN211287523U (en) | 2019-09-25 | 2019-09-25 | Resistance reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211287523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057116A1 (en) * | 2019-09-25 | 2021-04-01 | 四川宏华石油设备有限公司 | Resistance reduction device |
-
2019
- 2019-09-25 CN CN201921605170.7U patent/CN211287523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057116A1 (en) * | 2019-09-25 | 2021-04-01 | 四川宏华石油设备有限公司 | Resistance reduction device |
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