CN210370496U - Eccentric actuating mechanism - Google Patents
Eccentric actuating mechanism Download PDFInfo
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- CN210370496U CN210370496U CN201921315599.2U CN201921315599U CN210370496U CN 210370496 U CN210370496 U CN 210370496U CN 201921315599 U CN201921315599 U CN 201921315599U CN 210370496 U CN210370496 U CN 210370496U
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Abstract
The utility model discloses an eccentric actuating mechanism, including the urceolus, the last short circuit that rotates, the short circuit that rotates down, eccentric execution section of thick bamboo, eccentric wedge and power supply, go up the short circuit that rotates and pass through the coupling joint with the short circuit that rotates down, the power supply cup joints on last short circuit that rotates, the power supply links to each other with eccentric execution section of thick bamboo, eccentric execution section of thick bamboo cup joints on last short circuit and the short circuit that rotates down, be provided with the space between short circuit and the urceolus of rotating down, eccentric wedge is connected on eccentric execution section of thick bamboo, the short circuit that rotates down includes inner, outer end and excessive section, the urceolus is stretched out to the outer end, the inner is located the shaft coupling, the outer end diameter is greater than the inner diameter, excessive section is the inclined plane, when the short circuit that rotates down is not eccentric, the wedge is located the space between inner and the urceolus. The utility model discloses a rotatory short circuit is eccentric under the control, just can control the drill bit that is connected with rotatory short circuit down eccentric, realizes the change of drill bit direction to reach the change of well orbit.
Description
Technical Field
The utility model relates to a drilling equipment especially relates to a device that can change drill bit direction.
Background
The directional well technology is one of the most advanced well drilling technologies in the field of petroleum and natural gas exploration and development in the world nowadays, and is a well drilling technology which effectively controls a well track through special downhole tools, measuring instruments and process technologies and enables a drill bit to drill to a preset underground target along a specific direction. The adoption of the directional well technology can economically and effectively develop oil gas resources with limited ground and underground conditions, greatly improve the oil gas yield and reduce the drilling cost, is favorable for protecting the natural environment, and has remarkable economic and social benefits. Directional drilling is a method of drilling a well bore to a desired formation along a pre-designed well deviation and azimuth.
To realize the change of the well track, the direction change of the drill bit needs to be controlled, and the change of the direction of the drill bit needs to use an eccentric actuating mechanism, so that the development of a set of eccentric actuating mechanism is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned technical problem, provide an eccentric actuating mechanism, through eccentric actuating mechanism, rotatory short circuit is eccentric under the control, just can control the drill bit eccentric with the short circuit connection of rotating down, realizes the change of drill bit direction to reach the change of well orbit.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
an eccentric actuator, comprising: the device comprises an outer barrel, an upper rotary short circuit, a lower rotary short circuit, an eccentric execution barrel, an eccentric wedge block and a power source, the upper rotary short circuit and the lower rotary short circuit are connected through a coupler, the power source is sleeved on the upper rotary short circuit, the power source is connected with the eccentric execution barrel, the eccentric execution barrel is sleeved on the upper rotary short circuit and the lower rotary short circuit, a gap is formed between the lower rotary short circuit and the outer barrel, the eccentric wedge block is connected onto the eccentric execution barrel, the lower rotary short circuit comprises an inner end, an outer end and an excessive section, the outer end extends out of the outer barrel, the inner end is located in the coupler, the diameter of the outer end is larger than that of the inner end, the excessive section is an inclined plane, when the lower rotary short circuit is not eccentric, the wedge block is located in the gap between the inner end and the outer barrel.
The power source is a hydraulic cylinder or an air cylinder and comprises a cylinder body, a piston and a central pipe, the piston is positioned in the cylinder body, the central pipe is connected to the piston, and the central pipe extends out of the cylinder body and is connected with the eccentric execution cylinder.
And rotary sealing structures are arranged at the contact positions of the outer barrel and the upper rotary short circuit and the lower rotary short circuit.
A rolling bearing structure is arranged on a contact surface of the wedge-shaped block and the lower rotating short circuit, so that friction force between the wedge-shaped block and the lower rotating short circuit is reduced.
The eccentric actuating mechanism further comprises an angle adjuster, and the angle adjuster is connected with the eccentric actuating cylinder and drives the eccentric actuating cylinder to rotate.
The eccentric actuating mechanism further comprises a central controller and an eccentric actuating cylinder rotating angle detector, the eccentric actuating cylinder rotating angle detector is connected with the central controller, the angle adjuster is connected with the central controller, and the power source is connected with the central controller. When eccentric adjustment is needed, the central controller gives an angle adjusting command to the angle adjuster, the angle adjuster receives the adjusting command and then rotates the eccentric execution cylinder, the eccentric execution cylinder rotation angle detector feeds back the rotation angle data of the eccentric execution cylinder to the central controller, when the rotation angle reaches a set angle, the central controller gives a rotation stopping command to the angle adjuster, the angle adjuster stops rotating the eccentric execution cylinder after receiving the command, then the central controller sends a push-out command to the power source, the piston pushes the central pipe, the central pipe pushes the angle adjuster, the eccentric execution cylinder and the wedge block to move in the downward rotating short circuit direction, and the wedge block enters a gap between the transition section and the outer cylinder, so that the downward rotating short circuit deviates from the original central line. When the eccentric state is not needed, the central controller sends a retraction command to the power source, the piston retracts to drive the central tube, the angle adjuster and the eccentric execution cylinder to retract, the wedge block exits from a gap between the transition section and the outer cylinder and returns to a gap between the inner end and the outer cylinder, and the lower rotary short circuit automatically returns to the position of the original central line. The rotation angle detector of the eccentric actuating cylinder only needs to adopt an angle sensor. The angle adjuster only needs to drive the eccentric execution cylinder to rotate on the upper rotating short circuit and the lower rotating short circuit, and aims to adjust the position and the direction of the eccentricity of the lower rotating short circuit. And the wedge-shaped block is used for realizing the action of the lower rotating short-circuit eccentricity.
The utility model discloses following beneficial effect has for prior art:
1. the utility model discloses an urceolus, the last rotatory short circuit, the short circuit of next revolution, eccentric execution section of thick bamboo, eccentric wedge and power supply, go up rotatory short circuit and next revolution short circuit pass through the coupling joint, the power supply cup joints on last rotatory short circuit, the power supply links to each other with eccentric execution section of thick bamboo, eccentric execution section of thick bamboo cup joints on last rotatory short circuit and next revolution short circuit, be provided with the space between next revolution short circuit and the urceolus, eccentric wedge is connected on eccentric execution section of thick bamboo, the next revolution short circuit includes inner, outer end and excessive section, the urceolus is stretched out to the outer end, the inner is located the shaft coupling, the outer end diameter is greater than the inner diameter, excessive section is the inclined plane, when the next revolution short circuit is not eccentric, the wedge is located the space between inner and the urceolus, when the next revolution short circuit is eccentric. The utility model discloses a power supply promotes eccentric execution section of thick bamboo, then eccentric execution section of thick bamboo promotes eccentric wedge, the downward rotatory short circuit direction motion of eccentric wedge, insert in the space between excessive section and the urceolus, because the effect of eccentric wedge, the skew central line of short circuit will be rotated down, thereby the eccentricity of short circuit is rotated down in the realization, the direction of short circuit is rotated down in the change, the drill bit of connecting rotatory short circuit will deviate original direction under, realize the change of drill bit direction, as for the position that eccentric direction can adjust the wedge in advance, and skew degree can be adjusted through the distance of wedge motion. Through the utility model provides an eccentric mechanism can be fine realize the change of drill bit direction, reach the requirement of directional well.
2. The utility model discloses rotary seal structure is all installed with the contact position of last rotatory short circuit and lower rotatory short circuit to the urceolus. Through rotary seal structure, realize the sealed of rotatory short circuit and urceolus from top to bottom, avoid debris to enter into inside the eccentric mechanism, cause eccentric mechanism's damage.
3. The utility model discloses be provided with antifriction bearing structure on the contact surface of wedge and lower rotatory short circuit, reduce the frictional force between wedge and the lower rotatory short circuit. The rolling bearing structure is favorable for the movement of the wedge-shaped block, the work load of a power source is reduced, meanwhile, the abrasion of the lower rotary short circuit and the wedge-shaped block can be reduced, and the service life of the wedge-shaped block is prolonged.
4. The utility model discloses eccentric actuating mechanism still includes angle adjuster, and this angle adjuster links to each other with eccentric execution section of thick bamboo, drives eccentric execution section of thick bamboo and rotates. The rotation angle of the eccentric execution cylinder can be adjusted through the angle adjuster, and the wedge block is connected to the eccentric execution cylinder, so that the position of the wedge block can be adjusted, and the adjustment of the eccentric position and the direction of the lower rotary short circuit can be realized.
5. The utility model discloses eccentric actuating mechanism still includes central controller and eccentric execution section of thick bamboo turned angle detector, and eccentric execution section of thick bamboo turned angle detector links to each other with central controller, angle adjuster links to each other with central controller, the power supply links to each other with central controller. Through the action of the central controller and the eccentric execution cylinder rotation angle detector, the automatic adjustment of the rotation angle of the eccentric execution cylinder and the movement distance adjustment of the eccentric execution cylinder can be realized, and the adjustment of the eccentric position, direction and degree can be automatically realized.
Drawings
FIG. 1 is a schematic view of the whole structure of the present invention without eccentric structure
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of the utility model after the whole structure is eccentric;
fig. 4 is a side view of fig. 3.
The device comprises a reference numeral 1, an outer cylinder, 2, an upper rotating short circuit, 3, a lower rotating short circuit, 4, a coupler, 5, a hydraulic cylinder, 6, a central pipe, 7, a piston, 8, an eccentric execution cylinder, 9, a wedge block, 10, an angle adjuster, 11, a bearing, 12 and a spherical shaft sleeve.
Detailed Description
The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
This embodiment provides an eccentric mechanism, the function of which is to achieve eccentricity of the drill bit. This mechanism is explained in detail below.
The mechanism comprises an outer barrel 1, wherein an upper rotary short circuit 2 and a lower rotary short circuit 3 are arranged in the outer barrel 1, the upper rotary short circuit 2 and the lower rotary short circuit 3 are connected through a coupler 4, and the torque of the upper rotary short circuit 2 is transmitted to the lower rotary short circuit 3.
An eccentric actuating cylinder 8 is arranged on the whole formed by the upper rotary short joint 2, the coupling 4 and the lower rotary short joint 3, the eccentric actuating cylinder 8 is connected with a wedge block 9, and an angle adjuster 10 is arranged on the eccentric actuating cylinder 8 and used for adjusting the rotating angle of the eccentric actuating cylinder. A hydraulic cylinder 5 is arranged on the upper rotating short circuit 2, the hydraulic cylinder and the upper rotating short circuit 2 are limited on the upper rotating short circuit 2 through a bearing 11, and the axial movement of the hydraulic cylinder 5 is limited. From the direction of the drawing, the hydraulic cylinder is positioned on the left side of the eccentric actuating cylinder, and the wedge block is positioned on the right side of the eccentric actuating cylinder. The hydraulic cylinder 5 comprises a cylinder body, a piston 7 and a central pipe 6, wherein the central pipe 6 extends out of the cylinder body, one end of the central pipe 6 is connected to the piston 7, and the other end of the central pipe is connected to the eccentric execution cylinder. A gap is formed between the rotary short circuit 3 and the outer barrel 1, the lower rotary short circuit 3 comprises an inner end 30, an outer end 31 and a transition section 32, the outer end extends out of the outer barrel, the inner end is located in the coupler, the diameter of the outer end is larger than that of the inner end, the transition section is an inclined plane, when the lower rotary short circuit is not eccentric, the wedge block is located in the gap between the inner end and the outer barrel, and when the lower rotary short circuit is eccentric, the wedge block is located in the gap between the transition section and the outer barrel. The inner end of the lower rotary short joint 3 is arranged in the coupling 4 through a spherical shaft sleeve 12. When the eccentric operation is needed, the angle adjuster drives the eccentric execution cylinder to rotate, the wedge block is driven to rotate, after the eccentric execution cylinder is rotated to a position, the eccentric execution cylinder is locked (the eccentric execution cylinder is limited to rotate but can move axially), the hydraulic cylinder 5 is started, the piston 7 pushes the central tube 6 to move in the direction of the downward rotary short circuit 3 (the direction of the right side in the drawing), the central tube 6 drives the angle adjuster, the eccentric execution cylinder and the wedge block to move in the direction of the downward rotary short circuit together, and the wedge block moves to a gap between the transition section and the outer cylinder, so that the downward rotary short circuit deviates from a central line, and the eccentric operation is. After the eccentric operation is not needed, a piston of the hydraulic cylinder retracts (leftwards in the figure) a central pipe drives the angle adjuster, the eccentric execution cylinder and the wedge block to retract, the wedge block returns to a gap between the inner end and the outer cylinder, and the lower rotary short circuit returns to the position of a central line (the automatic centering mechanism can be arranged at the joint of the lower rotary short circuit and the coupler). Or the automatic return is not needed, and the return can be adjusted after the worker takes out the well. As for the rotation angle of the eccentric execution cylinder adjusted by the angle adjuster, when the eccentric operation is needed, the eccentric execution cylinder of the mechanism is well rotated and adjusted by a worker at a wellhead and then assembled and installed, and after the eccentric execution cylinder is lowered into the well, the hydraulic cylinder is controlled.
Example 2
In this embodiment, on the basis of embodiment 1, rotary seal structures are installed at the contact positions of the outer cylinder and the upper rotary short circuit and the lower rotary short circuit.
A rolling bearing structure is arranged on a contact surface of the wedge-shaped block and the lower rotating short circuit, so that friction force between the wedge-shaped block and the lower rotating short circuit is reduced.
The eccentric actuating mechanism further comprises an angle adjuster, and the angle adjuster is connected with the eccentric actuating cylinder and drives the eccentric actuating cylinder to rotate.
The eccentric actuating mechanism further comprises a central controller and an eccentric actuating cylinder rotating angle detector, the eccentric actuating cylinder rotating angle detector is connected with the central controller, the angle adjuster is connected with the central controller, and the power source is connected with the central controller. When eccentric adjustment is needed, the central controller gives an angle adjusting command to the angle adjuster, the angle adjuster receives the adjusting command and then rotates the eccentric execution cylinder, the eccentric execution cylinder rotation angle detector feeds back the rotation angle data of the eccentric execution cylinder to the central controller, when the rotation angle reaches a set angle, the central controller gives a rotation stopping command to the angle adjuster, the angle adjuster stops rotating the eccentric execution cylinder after receiving the command, then the central controller sends a push-out command to the power source, the piston pushes the central pipe, the central pipe pushes the angle adjuster, the eccentric execution cylinder and the wedge block to move in the downward rotating short circuit direction, and the wedge block enters a gap between the transition section and the outer cylinder, so that the downward rotating short circuit deviates from the original central line. When the eccentric state is not needed, the central controller sends a retraction command to the power source, the piston retracts to drive the central tube, the angle adjuster and the eccentric execution cylinder to retract, the wedge block exits from a gap between the transition section and the outer cylinder and returns to a gap between the inner end and the outer cylinder, and the lower rotary short circuit automatically returns to the position of the original central line. The rotation angle detector of the eccentric actuating cylinder only needs to adopt an angle sensor. The angle adjuster only needs to drive the eccentric execution cylinder to rotate on the upper rotating short circuit and the lower rotating short circuit, and aims to adjust the position and the direction of the eccentricity of the lower rotating short circuit. And the wedge-shaped block is used for realizing the action of the lower rotating short-circuit eccentricity. The embodiment can realize the angle adjustment of the eccentric execution cylinder and the pushing and retracting actions of the wedge block in the well, is more intelligent, and can adjust whether the eccentric and the eccentric direction are eccentric or not in real time.
Claims (6)
1. An eccentric actuator, comprising: the device comprises an outer barrel, an upper rotary short circuit, a lower rotary short circuit, an eccentric execution barrel, an eccentric wedge block and a power source, the upper rotary short circuit and the lower rotary short circuit are connected through a coupler, the power source is sleeved on the upper rotary short circuit, the power source is connected with the eccentric execution barrel, the eccentric execution barrel is sleeved on the upper rotary short circuit and the lower rotary short circuit, a gap is formed between the lower rotary short circuit and the outer barrel, the eccentric wedge block is connected onto the eccentric execution barrel, the lower rotary short circuit comprises an inner end, an outer end and an excessive section, the outer end extends out of the outer barrel, the inner end is located in the coupler, the diameter of the outer end is larger than that of the inner end, the excessive section is an inclined plane, when the lower rotary short circuit is not eccentric, the wedge block is located in the gap between the inner end and the outer barrel.
2. An eccentric actuator according to claim 1, characterized in that: the power source is a hydraulic cylinder or an air cylinder and comprises a cylinder body, a piston and a central pipe, the piston is positioned in the cylinder body, the central pipe is connected to the piston, and the central pipe extends out of the cylinder body and is connected with the eccentric execution cylinder.
3. An eccentric actuator according to claim 1, characterized in that: and rotary sealing structures are arranged at the contact positions of the outer barrel and the upper rotary short circuit and the lower rotary short circuit.
4. An eccentric actuator according to claim 1, characterized in that: and a rolling bearing structure is arranged on the contact surface of the wedge-shaped block and the lower rotary short circuit.
5. An eccentric actuator according to claim 1, characterized in that: the eccentric actuating mechanism further comprises an angle adjuster, and the angle adjuster is connected with the eccentric actuating cylinder and drives the eccentric actuating cylinder to rotate.
6. An eccentric actuator according to claim 5, characterized in that: the eccentric actuating mechanism further comprises a central controller and an eccentric actuating cylinder rotating angle detector, the eccentric actuating cylinder rotating angle detector is connected with the central controller, the angle adjuster is connected with the central controller, the power source is connected with the central controller, when eccentric adjustment is needed, the central controller gives an angle adjusting command to the angle adjuster, the angle adjuster receives the adjusting command and then rotates the eccentric actuating cylinder, the eccentric actuating cylinder rotating angle detector feeds back rotating angle data of the eccentric actuating cylinder to the central controller, when the rotating angle reaches a set angle, the central controller gives a rotation stopping command to the angle adjuster, the angle adjuster stops rotating the eccentric actuating cylinder after receiving the command, then the central controller sends a push-out command to the power source, the piston pushes the central pipe, the central pipe pushes the angle adjuster, the piston pushes the central pipe, the angle adjuster, The eccentric execution cylinder and the wedge block move in the downward rotating short circuit direction, the wedge block enters a gap between the transition section and the outer cylinder, the lower rotating short circuit deviates from the original central line, when the eccentricity is not needed, the central controller sends a retraction command to the power source, the piston retracts to drive the central tube, the angle adjuster and the eccentric execution cylinder to retract, the wedge block exits the gap between the transition section and the outer cylinder and returns to the gap between the inner end and the outer cylinder, and the lower rotating short circuit automatically returns to the position of the original central line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315599.2U CN210370496U (en) | 2019-08-14 | 2019-08-14 | Eccentric actuating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315599.2U CN210370496U (en) | 2019-08-14 | 2019-08-14 | Eccentric actuating mechanism |
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| CN210370496U true CN210370496U (en) | 2020-04-21 |
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| CN201921315599.2U Active CN210370496U (en) | 2019-08-14 | 2019-08-14 | Eccentric actuating mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284836A (en) * | 2019-08-14 | 2019-09-27 | 宏华油气工程技术服务（四川）有限公司 | A kind of bias executing agency |
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2019
- 2019-08-14 CN CN201921315599.2U patent/CN210370496U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284836A (en) * | 2019-08-14 | 2019-09-27 | 宏华油气工程技术服务（四川）有限公司 | A kind of bias executing agency |
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Address after: 610036 No. 99, East Road, Jinniu District Information Park, Sichuan, Chengdu Patentee after: Honghua oil and Gas Engineering Technology Service Co., Ltd Address before: 610036 No. 99, East Road, Jinniu District Information Park, Sichuan, Chengdu Patentee before: HONGHUA OIL & GAS ENGINEERING SERVICE SICHUAN Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210826 Address after: 610000 No. 12, floor 6, unit 1, building 1, No. 69, Guihe Road, Xindu District, Chengdu, Sichuan Patentee after: Wang Jun Address before: No.99, East Information Park Road, Jinniu District, Chengdu, Sichuan 610036 Patentee before: Honghua oil and Gas Engineering Technology Service Co., Ltd |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210927 Address after: 610500 room 508, floor 5, building 1, No. 266, machao East Road, Xindu street, Xindu District, Chengdu, Sichuan Patentee after: Sichuan Tongda Hesheng Energy Technology Co.,Ltd. Address before: 610000 No. 12, floor 6, unit 1, building 1, No. 69, Guihe Road, Xindu District, Chengdu, Sichuan Patentee before: Wang Jun |