CN216811566U - Rotary steering drilling device - Google Patents
Rotary steering drilling device Download PDFInfo
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- CN216811566U CN216811566U CN202220551912.8U CN202220551912U CN216811566U CN 216811566 U CN216811566 U CN 216811566U CN 202220551912 U CN202220551912 U CN 202220551912U CN 216811566 U CN216811566 U CN 216811566U
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- support rib
- support
- drilling device
- support ribs
- control system
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Abstract
The utility model discloses a rotary steering drilling device, which belongs to the field of oil exploitation equipment and comprises an outer barrel and an inner barrel, wherein the outer barrel and the inner barrel are coaxially arranged, a mandrel is arranged in the inner barrel and is coaxially arranged with the inner barrel, the mandrel is rotatably connected with the inner barrel, a drill bit is arranged at the end part of the mandrel, two support rib groups are arranged on the surface of the outer barrel, the first support rib group comprises four support ribs I, the four support ribs I are uniformly distributed around the outer barrel, the second support rib group comprises four support ribs II, the four support ribs II and the support ribs I are staggered and uniformly distributed, and each support rib is driven by a hydraulic driving device respectively to realize outward extension of the support rib. The utility model has the advantages of compact structure, prolonged service life and improved working effect and efficiency.
Description
Technical Field
The utility model belongs to the field of oil exploitation equipment, and particularly relates to a rotary steering drilling device.
Background
In the petroleum drilling operation, the drilling direction needs to be changed at any time, or the track of a well bore is adjusted, a region with dense oil and gas is drilled in time, high-yield oil flow is obtained, and the purpose of efficient drilling is achieved.
The existing rotary guide device for petroleum drilling uniformly extends 3 supporting mechanisms on the outer side of a drilling tool, the extending mechanisms on the side surfaces are extended out in a specific direction at regular time according to a set program and pushed to a well wall to generate reaction force, so that a drill bit is forced to deviate from the center of the well wall and continuously act to form the purpose and the effect of turning.
Disclosure of Invention
The utility model aims to provide a rotary steering drilling device which has a compact structure, prolongs the service life and improves the working effect and efficiency.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a rotary steering drilling equipment, includes urceolus and inner tube, urceolus and the coaxial setting of inner tube, be provided with the dabber in the inner tube, dabber and the coaxial setting of inner tube, this dabber rotates with the inner tube to be connected, and the drill bit is installed to the dabber tip, the urceolus surface is provided with two and supports the rib group, first support rib group is including four support ribs I, four support ribs I center on urceolus evenly distributed, the second supports the rib group and includes four support ribs II, four support ribs II and support rib I crisscross setting, evenly distributed, every supports the rib and passes through the hydraulic drive device drive respectively, realizes that it stretches out and draws back to the outer section of thick bamboo of urceolus.
The hydraulic driving device is a hydraulic cylinder.
And a displacement sensor is arranged in the support rib.
And the contact position of the support rib and the outer cylinder is provided with a ball.
The hydraulic driving device is controlled by a control system, and the control system comprises a first support rib group control system and a second support rib group control system.
By adopting the technical scheme, the utility model has compact integral structure, two support rib groups are arranged on the surface of the outer cylinder, and the extending condition of each support rib is monitored in real time through the displacement sensor. During operation, four support ribs I of first support rib group are controlled to stretch out and draw back earlier through first support rib control system, make the skew well central line of axis, and then control turning to of drill bit, when first support rib group goes wrong, four support ribs II that can in time control second support rib group are flexible, avoid work to break off, improve working effect and efficiency. In addition, the contact position of the support rib and the outer cylinder is provided with the ball, so that the friction between the support rib and the wall of the outer cylinder when the support rib stretches and retracts is reduced, and the service life of the support rib is prolonged.
The utility model has the beneficial effects that: the device has the advantages of compact structure, prolonged service life and improved working effect and efficiency.
Drawings
The advantages and realisation of the utility model will be more apparent from the following detailed description, given by way of example, with reference to the accompanying drawings, which are given for the purpose of illustration only, and which are not to be construed in any way as limiting the utility model, and in which:
FIG. 1 is a schematic structural view of the present invention
In the figure:
1. an outer cylinder; 2. an inner barrel; 3. a mandrel; 4. a ball bearing; 5. a support rib I; 6. a support rib II; 7. and a hydraulic drive device.
Detailed Description
As shown in figure 1, the rotary steering drilling device comprises an outer cylinder 1 and an inner cylinder 2, wherein the outer cylinder 1 and the inner cylinder 2 are coaxially arranged, a mandrel 3 is arranged in the inner cylinder 2, the mandrel 3 and the inner cylinder 2 are coaxially arranged, the mandrel 3 and the inner cylinder 2 are rotatably connected through a bearing, a drill bit is installed at the end part of the mandrel 3, two support rib groups are arranged on the surface of the outer cylinder 1, the first support rib group comprises four support ribs I5, the four support ribs I5 are uniformly distributed around the outer cylinder 1, the second support rib group comprises four support ribs II 6, the four support ribs II 6 and the support ribs I5 are arranged in a staggered mode and are uniformly distributed, and each support rib is driven by a hydraulic driving device 7 respectively to stretch out and retract out of the outer cylinder 1.
The hydraulic driving device 7 is a hydraulic cylinder, a displacement sensor is arranged in a supporting rib, a ball 4 is arranged at the contact position of the supporting rib and the outer cylinder 1, the hydraulic driving device 7 is controlled by a control system, and the control system comprises a first supporting rib group control system and a second supporting rib group control system.
The utility model has compact integral structure, two support rib groups are arranged on the surface of the outer cylinder 1, and the extending condition of each support rib is monitored in real time by a displacement sensor. During operation, the first supporting rib control system controls the four supporting ribs I5 of the first supporting rib group to stretch out and draw back, so that the axis deviates from the central line of a well, the steering of the drill bit is controlled, when the first supporting rib group goes wrong, the four supporting ribs II 6 of the second supporting rib group can be controlled to stretch out and draw back in time, the work interruption is avoided, and the work effect and the efficiency are improved. In addition, the ball 4 is arranged at the contact position of the support rib and the outer cylinder 1, so that the friction between the support rib and the cylinder wall of the outer cylinder 1 when the support rib stretches and contracts is reduced, and the service life of the support rib is prolonged.
Specifically, the hydraulic cylinder pushes the support rib to do telescopic motion, and the support rib is controlled to extend out of the outer cylinder according to target telescopic displacement and prop against the well wall of the well; and the displacement sensor measures the actual displacement of each support rib in real time and feeds the actual displacement back to the control system, so that the control system performs closed-loop control on the actual displacement of each support rib according to the target telescopic displacement. Each support rib is driven by an independent hydraulic cylinder to form independent closed-loop control, so that the actual displacement of each support rib can be continuously adjusted.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (5)
1. A rotary steerable drilling device, characterized by: including urceolus and inner tube, urceolus and the coaxial setting of inner tube, be provided with the dabber in the inner tube, dabber and the coaxial setting of inner tube, this dabber rotate with the inner tube and are connected, and the drill bit is installed to the dabber tip, the urceolus surface is provided with two support rib groups, and first support rib group is including four support ribs I, four support ribs I center on urceolus evenly distributed, and the second supports rib group and includes four support ribs II, four support ribs II with support rib I crisscross setting, evenly distributed, every support rib passes through the hydraulic drive device drive respectively, realizes that it is flexible outside the urceolus.
2. The rotary steerable drilling device of claim 1, wherein: the hydraulic driving device is a hydraulic cylinder.
3. The rotary steerable drilling device of claim 1, wherein: and a displacement sensor is arranged in the support rib.
4. The rotary steerable drilling device of claim 1, wherein: and the contact position of the support rib and the outer cylinder is provided with a ball.
5. The rotary steerable drilling device of claim 1, wherein: the hydraulic driving device is controlled by a control system, and the control system comprises a first support rib group control system and a second support rib group control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220551912.8U CN216811566U (en) | 2022-03-15 | 2022-03-15 | Rotary steering drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220551912.8U CN216811566U (en) | 2022-03-15 | 2022-03-15 | Rotary steering drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216811566U true CN216811566U (en) | 2022-06-24 |
Family
ID=82045427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220551912.8U Active CN216811566U (en) | 2022-03-15 | 2022-03-15 | Rotary steering drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216811566U (en) |
-
2022
- 2022-03-15 CN CN202220551912.8U patent/CN216811566U/en active Active
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