CN114320280A - Cross-screw wireless communication transmitting power self-adaption device - Google Patents
Cross-screw wireless communication transmitting power self-adaption device Download PDFInfo
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- CN114320280A CN114320280A CN202111421341.2A CN202111421341A CN114320280A CN 114320280 A CN114320280 A CN 114320280A CN 202111421341 A CN202111421341 A CN 202111421341A CN 114320280 A CN114320280 A CN 114320280A
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Abstract
The invention belongs to the technical field of petroleum underground instruments, and relates to a cross-screw wireless communication transmitting power self-adaptive device and a measurement while drilling system, wherein the cross-screw wireless communication transmitting power self-adaptive device consists of a wireless transmitting power adjusting system and a wireless receiving system, and both the wireless transmitting power adjusting system and the wireless receiving system are compatible with wireless transmitting and wireless receiving functions; the wireless transmitting power regulating system can transmit data representing the transmitting signal strength corresponding to the transmitting power; the wireless receiving system can transmit corresponding feedback data to the wireless transmitting power regulating system after receiving the data transmitted by the wireless transmitting power regulating system; the wireless transmitting power regulating system regulates the transmitting power of the next time according to the received signal strength data transmitted by the wireless receiving system. According to the cross-screw wireless communication transmitting power self-adaptive device, the transmitting power is adjustable, and the power consumption of a system is reduced in the whole working process.
Description
Technical Field
The invention belongs to the technical field of petroleum underground instruments, and relates to a cross-screw wireless communication transmitting power self-adaption device.
Background
The oil exploitation is a major project related to national energy supply, the energy demand is continuously increased along with the high-speed development of the economy of China in recent years, the efficiency requirement on the oil exploitation project is continuously increased, and on the other hand, a new exploitation environment also puts forward new technical and engineering requirements on the oil exploitation. Especially, as the complexity of the mining environment is continuously improved, how to synchronously improve the mining precision and safety is an important content of research in the field of oil exploitation. The measurement while drilling system consists of an underground instrument system and a ground system, and the main operation principle is that mud pulses in a drill string are utilized to transmit measurement information data to the ground, the environmental information near a drill bit can be transmitted to the ground system in real time in the real-time drilling process, and the ground system analyzes the obtained information and then adjusts the drilling of the underground instrument system in real time.
In practical application, the measurement accuracy and the service effective time are core technical indexes of the measurement while drilling system. Chinese patent CN201320704593.0 near bit measurement while drilling communication system discloses a near bit measurement while drilling communication system. The system comprises a power supply, a data processing circuit, a near-bit measuring instrument, a signal transmitting coil, an insulating ring, a signal receiving coil, a signal receiving instrument and the like; when the underground instrument is connected, the lower end of the instrument is connected with a drill bit, the middle of the instrument is connected with a screw drilling tool, and the upper end of the instrument is connected with drilling tools such as a drill collar and the like; the communication system adopts a vertical electric field method to design an antenna coil, and utilizes a drilling tool and mud liquid to form a channel for transmitting data, so that cross-screw wireless communication between a near-bit measuring instrument and a while-drilling instrument can be realized, and real-time acquisition and timely transmission of data of the near-bit measuring instrument are ensured. The utility model discloses a solved along with boring deviational survey in-process measurement station and from drill bit distance overlength, can't acquire the information of nearly drill bit department, realized early the adjustment of discovering, can carry out accurate control to the well drilling orbit. The cross-screw wireless communication system in the near-bit measurement while drilling communication system comprises a core part: the device comprises a power supply and data processing circuit board at a transmitting end, a signal transmitting coil, an insulating ring, a channel consisting of a drilling tool and mud liquid, a power supply and data processing circuit board at a receiving end, a signal receiving coil and an insulating ring. The power supply of the transmitting end and the transmitting power adopted by the data processing circuit board are the maximum transmitting power meeting Error Vector Magnitude (EVM) protocol standards. The transmitting power can not be adjusted according to the signal strength received by the wireless receiving end, which results in that a large amount of power consumption is wasted under the condition that the medium in a small-gap channel formed by the drilling tool and the mud liquid absorbs less electromagnetic wave energy, namely the attenuation of the electromagnetic wave signal is small, and the communication quality is sharply reduced due to overlarge signal attenuation under the condition that the channel medium absorbs more electromagnetic wave energy, namely the attenuation of the electromagnetic wave signal is large. The wireless transmitting terminal adopts the uniform maximum power to wirelessly transmit data, so that the power consumption of the whole system is increased, and the normal working time is shortened under the condition that the electric quantity of a system battery is certain.
Disclosure of Invention
The invention aims to provide a cross-screw wireless communication transmitting power self-adaption device.
According to one aspect of the invention, the cross-screw wireless communication transmitting power self-adaption device comprises a wireless transmitting power adjusting system and a wireless receiving system, wherein both the wireless transmitting power adjusting system and the wireless receiving system are compatible with wireless transmitting and wireless receiving functions; the wireless transmitting power regulating system can transmit data representing the transmitting signal strength corresponding to the transmitting power; after receiving the data transmitted by the wireless transmission power adjusting system, the wireless receiving system can transmit corresponding feedback data to the wireless transmission power adjusting system, wherein the feedback data is data representing the intensity of the received signal received by the wireless receiving system at this time; the wireless receiving system adopts fixed transmitting power when transmitting feedback data; the wireless transmitting power regulating system receives the received signal strength data transmitted by the wireless receiving system and regulates the transmitting power next time according to the received signal strength fed back by the wireless receiving system.
According to an exemplary embodiment of the present invention, the cross-screw wireless communication transmission power adaptation device operates as follows:
when the intensity of the received signal received by the wireless transmitting power adjusting system is more than 1.2 times of the minimum value of the intensity of the wireless received signal which can be decoded by the wireless transmitting power adjusting system, adjusting the next wireless transmitting power to be the next gear of the last transmitting power;
when the received signal strength received by the wireless transmitting power adjusting system is smaller than the minimum value of the wireless received signal strength which can be decoded by the wireless transmitting power adjusting system, or the wireless transmitting power adjusting system does not receive a feedback signal of the wireless receiving system, adjusting the next wireless transmitting power to be the previous gear of the last transmitting power;
and when the intensity of the received signal received by the wireless transmitting power adjusting system is 1-1.2 times of the minimum value of the intensity of the wireless receiving signal which can be decoded by the wireless transmitting power adjusting system, keeping the next wireless transmitting power as the gear of the last transmitting power.
According to the exemplary embodiment of the present invention, the wireless transmission power adjustment system and the wireless receiving system include a wireless transmitting unit and a wireless receiving unit, and bidirectional wireless communication can be realized.
According to an exemplary embodiment of the present invention, the wireless transmission power adjusting system and the wireless receiving system include power modules with adjustable output power, and the wireless transmission unit is driven to transmit adjustable power of 5 gears under different output powers of the power modules.
According to the exemplary embodiment of the present invention, the fixed transmission power used when the wireless receiving system transmits the feedback data is the maximum transmission power set by the wireless receiving system.
According to one aspect of the invention, the measurement while drilling system comprises the cross-screw wireless communication transmitting power self-adaption device.
According to an exemplary embodiment of the invention, the measurement while drilling system comprises a drill bit, a near drill measuring instrument, a screw drill, a signal receiving instrument and the cross-screw wireless communication transmitting power self-adapting device, wherein the drill bit, the near drill measuring instrument, the screw drill and the signal receiving instrument are sequentially connected and assembled, the wireless transmitting power adjusting system is connected with the near drill measuring instrument, and the wireless receiving system is connected with the signal receiving instrument.
Compared with the prior art, the cross-screw wireless communication transmitting power self-adaptive device provided by the embodiment of the invention has the advantages that the transmitting power is adjustable, so that the power consumption of a system is reduced in the whole working process.
Drawings
FIG. 1 is a flow chart of a measurement while drilling system with an adaptive device for transmitting power through cross-screw wireless communication according to an embodiment of the invention;
FIG. 2 is a schematic diagram illustrating an operation of an adaptive transmission power apparatus for cross-screw wireless communication according to an embodiment of the present invention;
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
As shown in fig. 1, a cross-screw wireless communication transmission power adaptive device is composed of a wireless transmission power adjusting system and a wireless receiving system.
Specifically, the wireless transmitting power regulating system and the wireless receiving system are compatible with wireless transmitting and wireless receiving functions; the wireless transmitting power regulating system can transmit data representing the transmitting signal strength corresponding to the transmitting power; after receiving the data transmitted by the wireless transmission power regulating system, the wireless receiving system can transmit corresponding feedback data to the wireless transmission power regulating system, wherein the feedback data is data representing the intensity of the received signal received by the wireless receiving system at this time; the wireless receiving system adopts fixed transmitting power when transmitting feedback data; the wireless transmitting power regulating system receives the received signal strength data transmitted by the wireless receiving system and regulates the transmitting power next time according to the received signal strength fed back by the wireless receiving system.
As shown in fig. 2, the cross-screw wireless communication transmission power adaptive device operates as follows:
when the intensity of the received signal received by the wireless transmitting power adjusting system is more than 1.2 times of the minimum value of the intensity of the wireless received signal which can be decoded by the wireless transmitting power adjusting system, adjusting the next wireless transmitting power to be the next gear of the last transmitting power;
when the received signal strength received by the wireless transmitting power adjusting system is smaller than the minimum value of the wireless received signal strength which can be decoded by the wireless transmitting power adjusting system, or the wireless transmitting power adjusting system does not receive a feedback signal of the wireless receiving system, adjusting the next wireless transmitting power to be the previous gear of the last transmitting power;
and when the intensity of the received signal received by the wireless transmitting power adjusting system is 1-1.2 times of the minimum value of the intensity of the wireless receiving signal which can be decoded by the wireless transmitting power adjusting system, keeping the next wireless transmitting power as the gear of the last transmitting power.
The cross-screw wireless communication transmitting power self-adaptive device provided by the embodiment of the invention has the advantages that the transmitting power is adjustable, and the transmitting power consumption is reduced under the condition that the medium in a small-gap channel formed by a drilling tool and mud liquid absorbs less electromagnetic wave energy; the wireless transmission performance is improved under the condition that the small-gap channel medium absorbs more electromagnetic wave energy, so that the power consumption of the system is reduced in the whole working process.
The wireless transmitting power regulating system and the wireless receiving system comprise a wireless transmitting unit and a wireless receiving unit, and bidirectional wireless communication can be realized.
The wireless transmitting power adjusting system and the wireless receiving system comprise power modules with adjustable output power, and the wireless transmitting unit is driven to transmit adjustable power of 5 gears under different output power of the power modules.
The fixed transmitting power adopted when the wireless receiving system transmits the feedback data is the maximum transmitting power set by the wireless receiving system.
As shown in fig. 1, a measurement while drilling system comprises a drill bit, a near drill measuring instrument, a screw drill, a signal receiving instrument and the above-mentioned cross-screw wireless communication transmitting power self-adapting device, wherein the drill bit, the near drill measuring instrument, the screw drill and the signal receiving instrument are sequentially connected and assembled, a wireless transmitting power adjusting system is connected with the near drill measuring instrument, and a wireless receiving system is connected with the signal receiving instrument.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A cross-screw wireless communication transmitting power self-adapting device is characterized in that the cross-screw wireless communication transmitting power self-adapting device consists of a wireless transmitting power adjusting system and a wireless receiving system, wherein both the wireless transmitting power adjusting system and the wireless receiving system are compatible with wireless transmitting and wireless receiving functions; the wireless transmitting power regulating system can transmit data representing the transmitting signal strength corresponding to the transmitting power; after receiving the data transmitted by the wireless transmission power adjusting system, the wireless receiving system can transmit corresponding feedback data to the wireless transmission power adjusting system, wherein the feedback data represents the received signal strength data received by the wireless receiving system at this time; the wireless receiving system adopts fixed transmitting power when transmitting feedback data; the wireless transmitting power regulating system receives the received signal strength data transmitted by the wireless receiving system and regulates the transmitting power next time according to the received signal strength fed back by the wireless receiving system.
2. The cross-screw wireless communication transmit power adaptation device of claim 1, wherein the cross-screw wireless communication transmit power adaptation device operates as follows:
when the intensity of the received signal received by the wireless transmitting power adjusting system is more than 1.2 times of the minimum value of the intensity of the wireless received signal which can be decoded by the wireless transmitting power adjusting system, adjusting the next wireless transmitting power to be the next gear of the last transmitting power;
when the received signal strength received by the wireless transmitting power adjusting system is smaller than the minimum value of the wireless received signal strength which can be decoded by the wireless transmitting power adjusting system, or the wireless transmitting power adjusting system does not receive a feedback signal of the wireless receiving system, adjusting the next wireless transmitting power to be the previous gear of the last transmitting power;
and when the intensity of the received signal received by the wireless transmitting power adjusting system is 1-1.2 times of the minimum value of the intensity of the wireless receiving signal which can be decoded by the wireless transmitting power adjusting system, keeping the next wireless transmitting power as the gear of the last transmitting power.
3. The cross-screw wireless communication transmission power adaptive device according to claim 1, wherein the wireless transmission power adjusting system and the wireless receiving system comprise a wireless transmitting unit and a wireless receiving unit, and bidirectional wireless communication can be realized.
4. The cross-screw wireless communication transmitting power self-adaption device is characterized in that the wireless transmitting power adjusting system and the wireless receiving system comprise power modules with adjustable output power, and the wireless transmitting unit is driven to transmit adjustable power of 5 gears under different output power of the power modules.
5. The apparatus of claim 1, wherein the fixed transmit power used by the wireless receiving system to transmit the feedback data is a maximum transmit power set by the wireless receiving system.
6. A measurement-while-drilling system, characterized in that the measurement-while-drilling system comprises the cross-screw wireless communication transmission power adaptive device as recited in any one of claims 1 to 5.
7. The measurement-while-drilling system of claim 6, further comprising a drill bit, a near-bit measuring instrument, a screw drill and a signal receiving instrument, wherein the drill bit, the near-bit measuring instrument, the screw drill and the signal receiving instrument are sequentially connected and assembled, the wireless transmission power adjusting system is connected with the near-bit measuring instrument, and the wireless receiving system is connected with the signal receiving instrument.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110944689 | 2021-08-17 | ||
| CN2021109446893 | 2021-08-17 |
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| CN114320280A true CN114320280A (en) | 2022-04-12 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2603138A1 (en) * | 2004-04-06 | 2005-10-06 | Newsco Directional & Horizontal Drilling Services Inc. | Intelligent efficient servo-actuator for a downhole pulser with novel brake and lock |
| CN202788817U (en) * | 2012-04-17 | 2013-03-13 | 北京六合伟业科技股份有限公司 | Near-bit measuring system experimental facility |
| CN103501532A (en) * | 2013-10-12 | 2014-01-08 | 惠州Tcl移动通信有限公司 | Method and device for controlling mobile WIFI (wireless fidelity) hotspot transmitting power |
| US20150136396A1 (en) * | 2013-11-18 | 2015-05-21 | Weatherford/Lamb, Inc. | Telemetry operated ball release system |
| CN106246167A (en) * | 2016-08-31 | 2016-12-21 | 中国科学院地质与地球物理研究所 | Nearly drill bit invariable power wireless short pass method and device |
| CN108691534A (en) * | 2018-05-11 | 2018-10-23 | 中国石油天然气集团有限公司 | A kind of downhole electromagnetic wireless telecommunication system and method |
| CN109577961A (en) * | 2018-12-28 | 2019-04-05 | 东莞市德克韦尔能源技术有限公司 | A kind of across screw rod data communication apparatus in underground |
| CN110792433A (en) * | 2018-07-16 | 2020-02-14 | 中国石油化工股份有限公司 | Signal transmitting device for measurement while drilling system and cross-screw data transmission method |
-
2021
- 2021-11-26 CN CN202111421341.2A patent/CN114320280A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2603138A1 (en) * | 2004-04-06 | 2005-10-06 | Newsco Directional & Horizontal Drilling Services Inc. | Intelligent efficient servo-actuator for a downhole pulser with novel brake and lock |
| CN202788817U (en) * | 2012-04-17 | 2013-03-13 | 北京六合伟业科技股份有限公司 | Near-bit measuring system experimental facility |
| CN103501532A (en) * | 2013-10-12 | 2014-01-08 | 惠州Tcl移动通信有限公司 | Method and device for controlling mobile WIFI (wireless fidelity) hotspot transmitting power |
| US20150136396A1 (en) * | 2013-11-18 | 2015-05-21 | Weatherford/Lamb, Inc. | Telemetry operated ball release system |
| CN106246167A (en) * | 2016-08-31 | 2016-12-21 | 中国科学院地质与地球物理研究所 | Nearly drill bit invariable power wireless short pass method and device |
| CN108691534A (en) * | 2018-05-11 | 2018-10-23 | 中国石油天然气集团有限公司 | A kind of downhole electromagnetic wireless telecommunication system and method |
| CN110792433A (en) * | 2018-07-16 | 2020-02-14 | 中国石油化工股份有限公司 | Signal transmitting device for measurement while drilling system and cross-screw data transmission method |
| CN109577961A (en) * | 2018-12-28 | 2019-04-05 | 东莞市德克韦尔能源技术有限公司 | A kind of across screw rod data communication apparatus in underground |
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Effective date of registration: 20220805 Address after: 100070, No. 39, No. 12, No. 188, South Fourth Ring Road, Beijing, Fengtai District Applicant after: BEIJING LIUHE GREATNESS TECHNOLOGY Co.,Ltd. Address before: 710018 room 2404, block B, Haiyi international, Fengcheng fifth road, economic and Technological Development Zone, Weiyang District, Xi'an City, Shaanxi Province Applicant before: Xi'an Tianke mingchuang Petroleum Technology Service Co.,Ltd. |
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