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CN-121976776-A - High-power underground power generation and high-speed signal transmission device

CN121976776ACN 121976776 ACN121976776 ACN 121976776ACN-121976776-A

Abstract

The invention relates to the technical field of downhole testing instruments for petroleum drilling, in particular to a high-power downhole power generation and high-speed signal transmission device. The high-power underground power generation and high-speed signal transmission device comprises a pulser short circuit, an upper flow guide structure, a central control short circuit, a lower flow guide structure and a generator short circuit which are sequentially connected end to end from top to bottom, wherein a control circuit board and a plurality of wire slots are arranged in the central control short circuit to connect the control circuit board with the pulser short circuit and the generator short circuit, wires of the generator short circuit are shunted into the wire slots by the lower flow guide structure, and the wires in the wire slots are guided to the pulser short circuit by the upper flow guide structure. The high-power underground power generation and high-speed signal transmission device improves the power transmission capacity of the device for each short circuit through a plurality of wire channels, and the pulser short circuit and the generator short circuit are respectively arranged at the upper end and the lower end, so that the turbulence influences the signal transmission equipment.

Inventors

  • LI RUNQI
  • YANG ZHIJIAN
  • ZHANG ZIYIN
  • PEI FEI
  • ZHAO HANQING
  • ZHANG XIN
  • ZHAO MIN
  • ZHAO HONGYAN

Assignees

  • 大庆钻探工程有限公司
  • 中国石油天然气集团有限公司

Dates

Publication Date
20260505
Application Date
20241025

Claims (15)

  1. 1. A high power downhole power generation and high rate signal transmission device, comprising: the device comprises a device body, wherein the device body is composed of a pulser short circuit (2), a central control short circuit (4) and a generator short circuit (6) which are sequentially connected end to end from top, a vertically penetrating fluid channel is arranged in the center of the device body, an upper diversion structure (3) and a lower diversion structure (5) are respectively arranged at the upper end and the lower end of the central control short circuit (4), the upper diversion structure (3) and the lower diversion structure (5) are opposite in structure, an impeller (201) and a driving motor (202) are arranged in the pulser short circuit (2) and are used for transmitting an underground pulse signal upwards through rotation of the impeller (201), an underground generator is arranged in the generator short circuit (6), the underground generator is driven by underground fluid to rotate and generate electric energy, a control groove is arranged in the central control short circuit (4), a control circuit board is arranged in the control groove and is connected to the pulser short circuit (2) and the generator short circuit (6) through wires, the wire channels are arranged in the side walls of the central control short circuit (4), the generator short circuit (6) and the pulser short circuit (2) are connected with the control groove through wires, and the lower diversion short circuit (6) are led out of the wires to the upper end of the conductors (3) of the control short circuit channels.
  2. 2. The high-power underground power generation and high-speed signal transmission device according to claim 1, wherein a protection joint (1) is arranged above the pulser short circuit (2).
  3. 3. The high-power underground power generation and high-speed signal transmission device according to claim 1, wherein in the pulser short circuit (2), the output end of the driving motor (202) is upward, the impeller (201) is connected to the output end of the driving motor (202), and the driving motor (202) drives the impeller (201) to rotate so as to control the fluid channel to be not opened or closed, and the pulse signal is transmitted upward.
  4. 4. The high-power underground power generation and high-speed signal transmission device according to claim 1, wherein the upper diversion structure (3) comprises an upper diverter body (305) and an upper extension head (302), the top end of the upper extension head (302) is connected to the bottom end of the driving motor (202), a vertically-through cable channel is arranged in the upper extension head (302), the top end of the upper diverter body (305) is connected to the bottom end of the upper extension head (302), a plurality of cable grooves are uniformly arranged in the upper diverter body (305), the bottom end of each cable groove is connected to a control groove of the central control short circuit (4), and the top end of each cable groove is connected to the bottom end of the cable channel in the upper extension head (302).
  5. 5. The high-power downhole power generation and high-rate signal transmission device according to claim 4, wherein a pin (301) is provided at the top end of the upper extension head (302), the top end of the pin (301) is inserted into the bottom end of the driving motor (202), and the top end of the wire is connected with the bottom end of the pin (301) and is connected with the driving motor (202) through the pin (301).
  6. 6. The high-power underground power generation and high-speed signal transmission device according to claim 5, wherein a runner protecting cover (303) is arranged at the top end of the upper diverter body (305), and the runner protecting cover (303) is connected with the upper diverter body (305) through a fastening screw (304).
  7. 7. The high-power underground power generation and high-speed signal transmission device according to claim 6, wherein a plurality of wire passing channels are arranged in the upper shunt body (305), the bottom end of each wire passing channel is connected with a wire groove on one central control short circuit (4), the top end of each wire passing channel is connected to the upper extension head (302), a sealing connector (307) is arranged at the joint of each wire passing channel and the wire groove, and a plurality of first sealing rings (306) are arranged on the outer wall of the upper shunt body (305).
  8. 8. The high-power underground power generation and high-speed signal transmission device according to claim 1, wherein the central control short circuit (4) comprises a central control framework (401) and a protection barrel (406), a mounting groove is formed in the side wall of the central control framework (401), and the protection barrel (406) is sleeved outside the central control short circuit (4) and corresponds to the mounting groove in position.
  9. 9. The high-power underground power generation and high-speed signal transmission device according to claim 8, wherein clearance rings (403) are respectively arranged at the upper end and the lower end of the protection cylinder (406), and a plurality of second sealing rings (402) are arranged at the contact positions of the upper end and the lower end of the protection cylinder (406) and the central control framework (401).
  10. 10. The high-power underground power generation and high-speed signal transmission device according to claim 8, wherein a plurality of wire grooves are uniformly arranged in the side wall of the lower section of the central control framework (401) to connect the control groove with the generator short circuit (6) and the pulser short circuit (2).
  11. 11. The high-power underground power generation and high-speed signal transmission device according to claim 10, wherein a wiring hole extending from the mounting groove is formed in the side wall of the lower section of the central control framework (401), a connecting hole is formed in the outer wall of the central control framework (401) at the joint of the wiring hole and the wiring groove, and a sealing plug (405) is arranged in the connecting hole.
  12. 12. The high-power underground power generation and high-speed signal transmission device according to claim 10, wherein a data reading plug (408) is arranged on the outer wall of the lower section of the central control framework (401), and the bottom end of the data reading plug (408) is connected into the mounting groove through a wire.
  13. 13. The high power downhole power generation and high rate signal transmission device of claim 12, wherein a platen (412) is provided outside the data reading plug (408), and a sealing cover plate (410) is provided outside the platen (412).
  14. 14. The high-power downhole power generation and high-rate signal transmission device according to claim 13, wherein the sealing cover plate (410) is fixed on the central control skeleton (401) through a plurality of fixing bolts (409), and a plurality of second sealing rings (402) are arranged outside the data reading plug (408).
  15. 15. The high-power downhole power generation and high-rate signal transmission device according to claim 14, wherein a centralizing ring (404) is arranged at the top end of the central control skeleton (401).

Description

High-power underground power generation and high-speed signal transmission device Technical Field The invention relates to the technical field of downhole testing instruments for petroleum drilling, in particular to a high-power downhole power generation and high-speed signal transmission device. Background In the rotary guiding system, the drilling technology, the logging technology and the oil reservoir engineering technology are fused, the real drilling well bore is ensured to pass through the reservoir stratum and obtain the optimal position by using geological parameters, engineering parameter measurement means and control means while drilling, and the rotary guiding system has the characteristics of identifying the oil and gas layer while drilling and having strong guiding function, and can realize true geosteering. In the current rotary guiding tool, after the short circuit of the hitching azimuth resistivity, neutron density, azimuth gamma, sound wave and the like, the parameter quantity required to be uploaded is very large, in order to improve the transmission frequency of data, underground power generation equipment and a driving motor with larger output power are required to be installed for the device, but the larger output power is required to replace a higher-quality wire for conducting electric power, the existing rotary guiding tool cannot provide enough installation space for the replaced wire under the premise of ensuring the normal operation of the existing rotary guiding tool under the self structural limitation, so that the underground power generation power and the signal transmission frequency of the rotary guiding tool cannot be further improved, and the turbulence generated by the power generation equipment in the motion process can influence the driving motor due to the fact that the distance between the power generation equipment and the driving motor is too short, so that the transmitted signal accuracy and transmission rate are reduced. Therefore, in order to overcome the defects, the high-power underground power generation and high-speed signal transmission device is provided. Disclosure of Invention First, the technical problem to be solved Aiming at the defects of the prior art, the invention provides a high-power underground power generation and high-speed signal transmission device, which solves the problem that the existing rotary guiding tool structure cannot further improve underground power generation power and signal transmission frequency. (II) technical scheme In order to solve the above problems, the present invention provides a high-power downhole power generation and high-rate signal transmission device, comprising: The device comprises a device body, wherein the device body is composed of a pulser short circuit, a central control short circuit and a generator short circuit which are sequentially connected end to end from top to bottom, a vertical through fluid channel is arranged in the center of the device body, an upper diversion structure and a lower diversion structure are respectively arranged at the upper end and the lower end of the central control short circuit, the upper diversion structure and the lower diversion structure are in the same direction and opposite to each other, an impeller and a driving motor are arranged in the pulser short circuit, an underground generator is arranged in the generator short circuit, the underground generator can rotate under the drive of the fluid and generate electric energy when the underground fluid passes through the underground generator, a control groove is arranged in the central control short circuit, a control circuit board is arranged in the control groove and connected to the pulser short circuit and the generator short circuit through wires, a plurality of wire channels are arranged in the side wall of the central control short circuit, the wire channels are used for connecting the generator short circuit and the pulser short circuit with the control groove, the lower diversion short circuit is used for shunting wires led out by the generator short circuit to the bottom ends of the wire channels, and the upper diversion short circuit is used for guiding the top ends of the wire channels in the central control short circuit to the pulser short circuit. Preferably, a protection joint is arranged above the pulser short circuit. Preferably, in the central control short circuit, the output end of the driving motor is upward, the impeller is connected to the output end of the driving motor, and the driving motor drives the impeller to rotate so as to control the fluid channel to be not opened or closed, and the pulse signal is transmitted upward. The upper flow guiding structure comprises an upper flow guiding body and an upper extension head, wherein the top end of the upper extension head is connected to the bottom end of a driving motor, a vertically through cable channel is arranged in the upper extension hea