CN114151069A - Rotary steering tool and transmission mode and device of rib plate control signal thereof - Google Patents
Rotary steering tool and transmission mode and device of rib plate control signal thereof Download PDFInfo
- Publication number
- CN114151069A CN114151069A CN202111541987.4A CN202111541987A CN114151069A CN 114151069 A CN114151069 A CN 114151069A CN 202111541987 A CN202111541987 A CN 202111541987A CN 114151069 A CN114151069 A CN 114151069A
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- Prior art keywords
- ring
- fixed
- contact
- rotary
- fixed ring
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Abstract
The invention discloses a rotary steering tool and a transmission mode and a device of rib plate control signals thereof, relating to the technical field of rotary steering drilling systems, wherein the transmission device comprises: the device comprises a fixed ring shell, a movable ring shell, a fixed ring contact, a movable ring contact ring, a fixed ring wire outlet terminal, a movable ring wire outlet terminal, an upper end sealing mechanism and a lower end sealing mechanism; the invention uses the whole rotary guiding tool as a slip ring, and realizes the signal transmission between the central shaft and the ribbed plate on the rotary sleeve by the contact of the fixed ring contact fixed on the fixed ring shell and the movable ring contact ring fixed on the movable ring shell. According to the invention, the transmission device replaces a rotary transformer in the prior art, and energy and control signals are transmitted to the control motor of the rib plate through the transmission device, so that the technical difficulty is greatly reduced, the reliability is improved, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of rotary steering drilling systems, in particular to a rotary steering tool and a transmission mode and a transmission device of rib plate control signals of the rotary steering tool.
Background
The rotary steering tool is very suitable for developing ultra-deep wells, high-difficulty directional wells, horizontal wells, extended reach wells, horizontal branch wells and the like of special oil reservoirs at present. In order to overcome the defects of the sliding guide technology, the rotary guide drilling technology is researched internationally from the late 80 s in the 20 th century. The research starts from 90 s in the 20 th century domestically. Consists of the following components: rotary steerable drilling systems are essentially a downhole closed loop tool system of rotary steerable tools in combination with measurement transmission instruments (MWD/LWD). In the early 90 s of the 20 th century, several companies developed commercial rotary steerable technology, and there were two more sophisticated steering systems. Namely, both push and point. The pushing type is that the wing ribs push against the drill collar at the position close to the drill bit, and the expansion of each wing rib directly provides lateral force for the drill bit is controlled by a set of independent hydraulic system, so that accurate and sufficient pushing force can be provided. The rotary guiding tool consists of a rotary sleeve and a central shaft, wherein the rotary sleeve is provided with three wing ribs and a circuit for controlling the wing ribs. When the drill rod is oriented, the three wing ribs are supported out to be in contact with the well wall with different forces, the rotating sleeve with the wing ribs and the control wing rib circuit does not rotate, and the drill rod central shaft and the drill bit rotate together to achieve the orientation. So that there is relative movement between the central shaft and the rotating sleeve. The control command of the force of the wing rib is from a main control circuit on the central shaft, and the two circuits need to communicate and supply power to the control panel. Communication and power to the control board is now accomplished through the medium of a rotary transformer. However, in the prior art rotary transformer: the communication is complicated and unreliable, the energy transfer efficiency is low, the device is easy to damage, the maintenance is not needed, and the price is high.
Disclosure of Invention
The invention provides a rotary guiding tool and a transmission mode and a device of rib plate control signals thereof, which solve the technical problems.
The invention provides a transmission device for a rib plate control signal of a rotary guiding tool, which comprises: the device comprises a fixed ring shell, a movable ring shell, a fixed ring contact, a movable ring contact ring, a fixed ring wire outlet terminal, a movable ring wire outlet terminal, an upper end sealing mechanism and a lower end sealing mechanism;
the movable ring shell is arranged on a central shaft of the rotary guiding tool, the fixed ring shell is arranged on a rotary sleeve of the rotary guiding tool, and the movable ring shell, the fixed ring shell, the upper end sealing mechanism and the lower end sealing mechanism jointly form a closed cavity for accommodating the fixed ring contact and the movable ring contact ring;
one end of the fixed ring wire outlet terminal is connected with the fixed ring contact through a wire, and the other end of the fixed ring wire outlet terminal penetrates through the fixed ring shell;
the fixed ring contact is connected to a fixed ring outlet terminal; the fixed ring contact is fixed on a bracket in the fixed ring shell and is in contact with the movable ring contact ring;
the movable ring contact ring is fixed on the movable ring shell and is connected to the movable ring outlet terminal through a lead.
Preferably, the fixed ring shell and the movable ring shell are both of thin-walled circular tubular structures.
Preferably, the fixed ring contact: the device comprises a plurality of metal wire structures with good conductivity and fixed point positions; the moving ring contact ring: comprises a plurality of circular metal rings with good electric conductivity.
Preferably, the fixed ring outlet terminal and the moving ring outlet terminal: each including a plurality of fixed position wire connectors.
Preferably, the upper end sealing mechanism: comprises a plurality of mutually matched sealing structures;
the lower end sealing mechanism: including a plurality of interfitting sealing structures.
The invention also provides a transmission mode of the ribbed plate control signal of the rotary guiding tool, which is applied to ribbed plates, a rotary sleeve, a central shaft, a control circuit and the rotary guiding tool and is characterized in that a transmission device is also arranged in a cavity between the rotary sleeve and the central shaft; the transmission device realizes the signal transmission between the ribbed plate and the central shaft by the contact of the stator contact ring fixed in the fixed ring shell and the movable ring contact fixed on the movable ring shell.
The invention also provides a rotary steering tool, comprising a transmission device, and further comprising: the device comprises a rib plate, a rotary sleeve, a central shaft and a control circuit;
the ribbed plate is arranged on the rotary sleeve; the control circuit is arranged on the central shaft;
the rotating sleeve is arranged on the outer layer of the central shaft.
The invention has the beneficial effects that: according to the rotary guide tool and the transmission mode and device of the rib plate control signal of the rotary guide tool, the rotary transformer in the prior art is replaced by the transmission device, the control measuring circuit on the rotary sleeve is moved to the central shaft, and only energy and the control signal are transmitted to the motor for controlling the rib plate through the transmission device, so that the technical difficulty is greatly reduced, the reliability is improved, and the cost is reduced.
Drawings
Fig. 1 is a structural diagram of a transmission device for a rib control signal of a rotary steerable tool according to an embodiment of the present invention;
fig. 2 is a structural diagram of a rotary steerable tool according to an embodiment of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
The present embodiment provides a device for transmitting a control signal of a rib of a rotary steerable tool, as shown in fig. 1, including: the device comprises a fixed ring shell 1, a moving ring shell 2, a fixed ring contact 3, a moving ring contact ring 4, a fixed ring wire outlet terminal 5, a moving ring wire outlet terminal 6, an upper end sealing mechanism 7 and a lower end sealing mechanism 8;
the movable ring shell 2 is arranged on a central shaft of the rotary guiding tool, the fixed ring shell 1 is arranged on a rotary sleeve of the rotary guiding tool, and the movable ring shell 2, the fixed ring shell 1, the upper end sealing mechanism 7 and the lower end sealing mechanism 8 jointly form a closed cavity for accommodating the fixed ring contact 3 and the movable ring contact ring 4;
one end of the fixed ring outgoing line terminal 5 is connected with the fixed ring contact 3 through a lead, and the other end of the fixed ring outgoing line terminal penetrates through the fixed ring shell 1;
the fixed ring contact 3 is connected to a fixed ring outlet terminal 5; the fixed ring contact 3 is fixed on a bracket in the fixed ring shell 1 and is contacted with the moving ring contact ring 4;
the moving ring contact ring 4 is fixed on the moving ring shell 2 and is connected to a moving ring outlet terminal 6 through a lead. The transmission device realizes signal transmission between the ribbed plate and the central shaft by contacting a stator contact ring fixed in the fixed ring shell 1 with a movable ring contact fixed on the movable ring shell 1.
As shown in fig. 2, the rotary steerable tool includes: has an inner layer structure and an outer layer structure which move relatively, the outer layer is called a rotating sleeve 2-1, and the inner layer is called a central shaft 2-2. The rotating sleeve is evenly divided and is provided with three ribbed plates 2-3. Ribs 2-3 are internally powered mechanical support arms that can flare outwardly. The movement of the rib 2-3 is controlled by a remote control circuit 2-4 via a signal line 2-5.
The remote control circuit 2-4 is mounted on the central shaft 2-2 of the inner layer of the rotary steerable tool. The cavity between the rotating sleeve 2-1 and the central shaft 2-2 is also provided with a transmission device as shown in figure 1; the transmission device realizes signal transmission between the ribbed plates 2-3 and the central shaft 2-2 by contacting a stator contact ring fixed in the fixed ring shell 1 with a movable ring contact fixed on the movable ring shell. The present invention uses the entire rotary steerable tool as a slip ring.
When the rotary steering tool works in a well, the tail end of the central shaft 2-2 of the inner layer is connected with the drill collar. And rotates with the drill collar. The rotary sleeve 2-1 is sleeved on the outer layer of the central shaft 2-2 and rotates continuously.
The rotating sleeve 2-1 and the central shaft 2-2 are mutually moved. The relative motion state is any rotating speed and any number of turns.
The fixed ring shell 1 of the transmission device for the rib plate control signals of the rotary guiding tool is of a thin-wall circular tubular structure, the fixed ring shell 1 is installed on a rotary sleeve 2-1 of the rotary guiding tool and used for protecting the contents of a communication slip ring of the rotary guiding tool and forming a completed cavity together with the movable ring shell 2, the upper end sealing mechanism 7 and the lower end sealing mechanism 8, and the completed cavity is used for accommodating the communication internal structure of the rotary guiding tool: a fixed ring contact 3 and a moving ring contact ring 4.
Rotating ring shell 2 of transmission device for rib plate control signals of rotary guiding tool: the rotary guiding tool is of a thin-wall circular tubular structure, the movable ring shell 2 is arranged on a central shaft 2-2 of the rotary guiding tool and used for protecting the contents of a communication sliding ring of the rotary guiding tool, and the movable ring shell, the fixed ring shell 1, the upper end sealing mechanism 7 and the lower end sealing mechanism 8 jointly form a completed cavity and are used for accommodating the communication internal structure of the rotary guiding tool: a fixed ring contact 3 and a moving ring contact ring 4.
Fixed ring contact 3 of transmission device of rotary guiding tool rib plate control signal: the conductive wire structure is a plurality of metal wire structures with good conductivity and fixed point positions. The stationary ring contact 3 is connected to a stationary ring outlet terminal 5. The fixed ring contact 3 is fixed on a bracket in the fixed ring shell 1 and is contacted with the moving ring contact ring 4.
Rotating ring contact ring 4 of the transmission device of the rotary guiding tool rib plate control signal: is a plurality of circular metal rings with good conductive performance. The moving ring contact ring 4 is fixed on the moving ring shell 2 and is connected to a moving ring outlet terminal 6 through a lead.
Fixed ring outlet terminal 5 of transmission device for rotary guiding tool ribbed plate control signal: are a series of fixed wire connections. One end of the fixed ring outgoing line terminal 5 is connected with the fixed ring contact 3 through a lead, and the other end of the fixed ring outgoing line terminal penetrates through the fixed ring shell 1.
The rotating ring outlet terminal 6 of the transmission device for the rib plate control signal of the rotary guiding tool: are a series of fixed wire connections. One end of the fixed ring outlet terminal 5 is connected with the moving ring contact ring 4 through a lead, and the other end penetrates through the moving ring shell 2.
Upper end sealing mechanism 7 of transmission device of rotary guiding tool rib plate control signal: the mechanism is composed of a plurality of rows of mutually matched sealing structures, and the sealing structures, the fixed ring shell 1 and the movable ring shell 2 form a sealing cavity inside the transmission device together. The main function of the seal housing is to accommodate a stationary ring contact 3, which contacts a ring 4 and maintains the seal inside the transmission.
Lower end sealing mechanism 8 of transmission device of rotary guiding tool ribbed plate control signal: the mechanism is composed of a plurality of rows of mutually matched sealing structures, and the sealing structures, the fixed ring shell 1 and the movable ring shell 2 form a sealing cavity inside the transmission device together. The main function of the seal housing is to accommodate a stationary ring contact 3, which contacts a ring 4 and maintains the seal inside the transmission.
The embodiment provides a rotatory guiding tool and rib plate control signal's transmission mode and device thereof, use whole rotatory guiding tool as a sliding ring, replaced the resolver among the prior art through transmission device and accomplished the task, move the control measuring circuit on the swivel sleeve to the center pin simultaneously, only transmit energy and control signal for the motor of control rib plate through the sliding ring, greatly reduced the technical degree of difficulty, improved the reliability, the cost is reduced.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A rotary steerable tool fin control signal transmission device, the transmission device comprising: the device comprises a fixed ring shell, a movable ring shell, a fixed ring contact, a movable ring contact ring, a fixed ring wire outlet terminal, a movable ring wire outlet terminal, an upper end sealing mechanism and a lower end sealing mechanism;
the movable ring shell is arranged on a central shaft of the rotary guiding tool, the fixed ring shell is arranged on a rotary sleeve of the rotary guiding tool, and the movable ring shell, the fixed ring shell, the upper end sealing mechanism and the lower end sealing mechanism jointly form a closed cavity for accommodating the fixed ring contact and the movable ring contact ring;
one end of the fixed ring wire outlet terminal is connected with the fixed ring contact through a wire, and the other end of the fixed ring wire outlet terminal penetrates through the fixed ring shell;
the fixed ring contact is connected to a fixed ring outlet terminal; the fixed ring contact is fixed on a bracket in the fixed ring shell and is in contact with the movable ring contact ring;
the movable ring contact ring is fixed on the movable ring shell and is connected to the movable ring outlet terminal through a lead.
2. The rotary steerable tool rib control signal transmission device of claim 1, wherein the stationary ring housing and the movable ring housing are both thin-walled circular tubular structures.
3. The rotary steerable tool rib control signal transmission device of claim 1, wherein the fixed ring contact: the device comprises a plurality of metal wire structures with good conductivity and fixed point positions; the moving ring contact ring: comprises a plurality of circular metal rings with good electric conductivity.
4. The rotary steerable tool floor control signal transmission device of claim 1, wherein the stationary ring outlet terminal and the moving ring outlet terminal each comprise a plurality of wire connections having fixed positions.
5. The rotary steerable tool floor control signal transmission device of claim 1, wherein the upper end sealing mechanism: comprises a plurality of mutually matched sealing structures;
the lower end sealing mechanism: including a plurality of interfitting sealing structures.
6. A transmission mode of rib plate control signals of a rotary guiding tool is applied to a rotary guiding tool comprising a rib plate, a rotary sleeve, a central shaft, a control circuit and the rotary guiding tool, and is characterized in that a transmission device as claimed in any one of claims 1 to 5 is further arranged in a cavity between the rotary sleeve and the central shaft; the transmission device realizes the signal transmission between the ribbed plate and the central shaft by the contact of the stator contact ring fixed in the fixed ring shell and the movable ring contact fixed on the movable ring shell.
7. A tool comprising a transfer device according to one of claims 1 to 5, further comprising: the device comprises a rib plate, a rotary sleeve, a central shaft and a control circuit;
the ribbed plate is arranged on the rotary sleeve; the control circuit is arranged on the central shaft;
the rotating sleeve is arranged on the outer layer of the central shaft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541987.4A CN114151069A (en) | 2021-12-16 | 2021-12-16 | Rotary steering tool and transmission mode and device of rib plate control signal thereof |
| PCT/CN2021/139871 WO2023108704A1 (en) | 2021-12-16 | 2021-12-21 | Rotary steerable tool and transmission mode and device for rib plate control signal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541987.4A CN114151069A (en) | 2021-12-16 | 2021-12-16 | Rotary steering tool and transmission mode and device of rib plate control signal thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114151069A true CN114151069A (en) | 2022-03-08 |
Family
ID=80451485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111541987.4A Pending CN114151069A (en) | 2021-12-16 | 2021-12-16 | Rotary steering tool and transmission mode and device of rib plate control signal thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114151069A (en) |
| WO (1) | WO2023108704A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2461338B2 (en) * | 2010-12-03 | 2017-03-01 | ABB Schweiz AG | Circuit breaker arrangement for medium voltage to high voltage applications |
| CN106644212A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Device for testing wing rib of rotating guide tool |
| CN107780833A (en) * | 2016-08-28 | 2018-03-09 | 璧典凯 | A kind of rotary steering downhole tool control system |
| CN108397135A (en) * | 2018-01-03 | 2018-08-14 | 中国石油集团西部钻探工程有限公司 | Rotating signal and power transfer inner ring |
-
2021
- 2021-12-16 CN CN202111541987.4A patent/CN114151069A/en active Pending
- 2021-12-21 WO PCT/CN2021/139871 patent/WO2023108704A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023108704A1 (en) | 2023-06-22 |
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