CN115038151B - Communication relay node while drilling based on self-energy supply - Google Patents
Communication relay node while drilling based on self-energy supply Download PDFInfo
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- CN115038151B CN115038151B CN202210556520.5A CN202210556520A CN115038151B CN 115038151 B CN115038151 B CN 115038151B CN 202210556520 A CN202210556520 A CN 202210556520A CN 115038151 B CN115038151 B CN 115038151B
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- 238000005553 drilling Methods 0.000 title claims abstract description 117
- 238000004891 communication Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims description 45
- 238000004146 energy storage Methods 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000007781 pre-processing Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000007726 management method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15542—Selecting at relay station its transmit and receive resources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a self-powered communication-while-drilling relay node which is characterized by comprising an energy supply system and the communication-while-drilling relay node; the energy supply system collects underground energy to supply power for the communication relay node while drilling; the energy supply system comprises an energy conversion module and an energy management storage module; the energy conversion module collects underground energy and converts the underground energy into electric energy, and the electric energy is transmitted to the energy management storage module; and the energy management storage module is used for storing and managing the energy generated by the energy conversion module and supplying power to the communication relay node while drilling at fixed time intervals. In the drilling process, the self-powered while-drilling communication relay nodes are distributed on each drill rod, and the distributed energy collecting underground works, so that the device has the characteristics of high speed, small volume, convenience in deployment and strong anti-interference capability, realizes permanent use in one-time deployment, and does not need to replace a battery or adopt a turbine generator to supply power. The mechanical energy is converted into the electric energy to supply power for the communication relay node while drilling, so that the communication relay node while drilling can work normally in the underground extreme environment, and a great deal of subsequent financial resources and manpower are avoided to maintain.
Description
Technical Field
The invention relates to communication while drilling, in particular to a self-powered communication while drilling relay node.
Background
As economies develop, the exploration and recovery of petroleum resources evolve from shallow earth into deep formations and into the ocean. Logging while drilling technology is also becoming increasingly popular. Communication while drilling is used as a key link of logging while drilling technology, and is also a bottleneck for restricting development of logging while drilling technology. Existing relay nodes for communication while drilling in the pit are mostly powered by cables, turbine generators or battery packs. The cable has complex process and serious abrasion at the drill rod joint; the turbine generator has high maintenance difficulty and high cost. The service life of the battery pack is limited, and the battery pack is greatly influenced by the underground environment; in addition, the existing underground relay nodes for communication while drilling have large volume, complex structure and long interval distance, so that the deployment difficulty of the relay nodes is high, and the anti-interference capability of information transmission is poor. Therefore, a relay node which is used for communication while drilling, does not need to be powered in the above mode, is convenient to deploy and has strong anti-interference capability needs to be invented.
Disclosure of Invention
The invention aims at: aiming at the problems, the invention provides a self-powered communication-while-drilling relay node, which has the characteristics of small volume and simple structure, can be deployed on each drill rod, has strong anti-interference capability, stable information transmission, low maintenance cost and longer service life by collecting the vibration energy of the drill rod, and basically can realize one-time deployment and permanent use without repeated replacement of a battery.
The invention is realized by the following technical scheme: the communication relay node while drilling based on self energy supply comprises an energy supply system and the communication relay node while drilling; the energy supply system collects underground energy to supply power for the communication relay node while drilling; the energy supply system comprises an energy conversion module and an energy management storage module; the energy conversion module collects underground energy and converts the underground energy into electric energy, and the electric energy is transmitted to the energy management storage module; and the energy management storage module is used for storing and managing the energy generated by the energy conversion module and supplying power to the communication relay node while drilling at fixed time intervals.
Further, the energy conversion module is one or more of a friction nano generator and a piezoelectric nano generator.
Further, the energy management storage module comprises an energy storage element, a voltage comparator and a timer; the while-drilling communication relay node acquires the electric quantity of the energy storage element, stores the electric quantity value of the energy storage element, and periodically transmits the electric quantity value to the next relay node and then to the ground control end.
Further, the communication while drilling relay node comprises a wireless receiving module, a data processing module 1, a data processing module 2 and a wireless transmitting module. The wireless receiving module comprises a receiving coil and a corresponding circuit assembly and is used for receiving underground data transmitted by a previous communication relay node while drilling; the wireless transmitting module comprises a transmitting coil and a corresponding circuit assembly and is used for transmitting data to the latter communication node while drilling; the data processing module 1 preprocesses the underground data received by the wireless receiving module.
Further, the receiving coil and the transmitting coil are respectively positioned at two ends of the drill rod, and the receiving coil is coupled with the transmitting coil of the communication relay node while drilling on the previous drill rod at the joint of the drill rod and is used for wirelessly receiving the coupling signal; the transmitting coil is coupled with the receiving coil of the communication relay node while drilling on the subsequent drill rod at the drill rod joint and is used for wirelessly transmitting the coupling signal.
Further, the processing of the downhole data received by the wireless receiving module by the data processing module 1 specifically includes: the data processing module processes the sensor data, wakes up the data processing module 2, and delivers the preprocessed data to the data processing module 2.
Further, the data processing module 2 processes the received preprocessed data specifically: after the data processing module 2 collects the electric quantity information of the energy storage element, the data after the pretreatment is further processed, the wireless transmitting module is awakened, the data after the further processing is transmitted, and the wireless transmitting module wirelessly transmits the data to the next communication relay node while drilling after receiving the data.
Further, when the timer of the while-drilling communication relay node sends a timing pulse, the voltage comparator judges the electric quantity value of the energy storage element, when the electric quantity value of the energy storage element is greater than or equal to V1, the data processing module 1 pre-processes the underground data received by the wireless receiving module, wakes up the data processing module 2, sends the pre-processing result to the data processing module 2, wakes up the wireless transmitting module after the data processing module 2 further processes and transmits information, and the wireless transmitting module transmits the information to the next while-drilling communication relay node;
Further, the wireless receiving module comprises an electromagnetic wave signal receiving device and one of magnetic coupling receiving devices.
Further, the wireless transmitting module comprises one of an electromagnetic wave signal transmitting device and a magnetic coupling transmitting device.
The beneficial effects of the invention are as follows:
1. According to the self-powered communication-while-drilling relay node, in the drilling process, the self-powered communication-while-drilling relay node is distributed on each drill rod, the self-powered technology is used for converting energy in the underground into electric energy, the communication-while-drilling relay nodes on adjacent drill rods transmit data through the transmitting coil and the receiving coil which are mutually coupled at the joints of the drill rods, the anti-interference performance is high, the self-powered communication-while-drilling relay node is realized, the energy consumption of communication-while-drilling is reduced, and the daily maintenance difficulty and the daily maintenance cost are reduced.
2. According to the self-powered communication-while-drilling relay node, the distributed mechanical energy can be converted into the electric energy to supply power for the communication-while-drilling relay node, normal work of the communication-while-drilling relay node in a downhole limit environment can be guaranteed, and a large amount of subsequent financial resources and manpower are avoided.
3. According to the self-powered while-drilling communication relay node, when the timer generates timing pulses and the electric quantity value of the energy storage element reaches a certain value, each module is sequentially awakened, so that high-stability operation of the self-powered while-drilling communication relay node is ensured, and the self-powered while-drilling communication relay node with small network delay and high instantaneity is realized.
4. According to the communication-while-drilling relay node based on self-energy supply, the electric quantity value of the energy storage element can be collected and sent to the subsequent communication-while-drilling relay node, and then the electric quantity value is sent to the ground surface control end, so that the position of the communication-while-drilling relay node and the arrangement of specific work of the position of the communication-while-drilling relay node according to the electric quantity value of the energy storage element of the communication-while-drilling relay node in subsequent work are facilitated.
Drawings
FIG. 1 is a schematic diagram of an energy delivery system.
Fig. 2 is a diagram of a design structure of a communication relay node while drilling.
Fig. 3 is a block diagram of data transmission in a self-powered while-drilling communication system.
Fig. 4 is a diagram of a design structure of a self-powered while-drilling communication relay node
Description of the preferred embodiments
In order to make the technical solution of the present application better understood by those skilled in the art, the technical solution of the present application will be clearly and completely described in the following with reference to the accompanying drawings, and based on the embodiments of the present application, other similar embodiments obtained by those skilled in the art without making any inventive effort should be included in the scope of protection of the present application.
The existing underground communication system for petroleum drilling has two important problems, namely the first is that the currently commonly adopted slurry pulse method is low in information transmission speed, low in transmission speed and poor in anti-interference capability. The energy supply problem of equipment such as second oil drilling communication equipment adopts concentrated energy supply mode at present, and its equipment mainly adopts turbine generator and group battery, all has the problem that operating time is short and with high costs in the practical application. The cost of stopping drilling operations due to energy supply problems is enormous, and the self-powered while-drilling communication relay node provides a new solution for the self-powered while-drilling communication relay node by being distributed on each drill rod and utilizing the characteristic of distributed downhole energy collection on each drill rod. The combination of self-energy supply and the communication relay node while drilling can ensure the long-time work of the communication relay node while drilling in various extreme underground wells, avoid the subsequent maintenance of great expense on financial resources and manpower, and have the characteristics of small volume, convenient deployment and strong anti-interference capability. And meanwhile, compared with the traditional slurry pulse method, the information transmission speed is increased.
Example 1:
Embodiment 1 is a self-powered communication-while-drilling relay node, including an energy supply system, a communication-while-drilling relay node; the energy supply system collects underground energy to supply power for the communication relay node while drilling; as shown in fig. 1, the energy supply system includes an energy conversion module, an energy management storage module; the energy conversion module collects underground energy and converts the underground energy into electric energy, and the electric energy is transmitted to the energy management storage module; and after the energy management storage module generates energy and performs storage management, the power supply is performed on the communication relay node while drilling at fixed time intervals.
The self-powered technology is used for converting underground energy into electric energy, so that the self-powered communication-while-drilling relay node is realized, the energy consumption of the communication-while-drilling relay node is saved, and the reutilization of underground energy is realized.
Further, the energy conversion module is one or more of a friction nano generator and a piezoelectric nano generator. And deploying an actual energy conversion module according to the actual geographic position, working content and the like of the communication relay node while drilling. The mechanical energy is converted into the electric energy to supply power for the communication relay node while drilling, so that the communication relay node while drilling can work normally in various limit wells, and a great deal of subsequent financial resources and manpower are avoided.
Further, the energy management storage module comprises an energy storage element, a timer and a voltage comparator; the while-drilling communication relay node acquires the electric quantity of the energy storage element, and sends the electric quantity value to the subsequent while-drilling communication relay node, so as to transmit the electric quantity value to the ground control end. The working state of each node is monitored.
Further, as shown in fig. 2, the communication relay node while drilling includes a wireless receiving module, a data processing module 1, a data processing module 2 and a wireless transmitting module.
Further, the wireless receiving module comprises a receiving coil and corresponding circuit components, and the wireless receiving module comprises a transmitting coil and corresponding circuit components; the receiving coil and the transmitting coil are respectively positioned at two ends of the drill rod. The receiving coil is coupled with the transmitting coil of the communication relay node while drilling on the previous drill rod and is used for wirelessly receiving the coupling signal. The transmitting coil is coupled with the receiving coil of the communication relay node while drilling on the subsequent drill rod and is used for wirelessly transmitting the coupling signal. The data processing module 1 preprocesses information received by the wireless receiving module.
Further, the preprocessing of the downhole information received by the wireless receiving module by the data processing module 1 specifically includes: the data processing module performs recognition and preliminary processing on the data received by the wireless receiving module, wakes up the data processing module 2, and transmits the data to the data processing module 2.
Further, the data processing module 2 further processes the data received from the data processing module 1 specifically: after the data processing module 2 collects the electric quantity information of the energy storage element, the data after the pretreatment is further processed, the wireless transmitting module is awakened and transmits the processed data, and the wireless transmitting module wirelessly transmits the data to the next communication relay node while drilling after receiving the data.
Further, when the timer of the while-drilling communication relay node sends a timing pulse, the voltage comparator judges the electric quantity of the energy storage element. When the energy storage element electric quantity value is greater than or equal to V1, the data processing module 1 preprocesses the underground data received by the wireless receiving module, wakes up the data processing module 2 and transmits information to the data processing module 2. When the timer generates timing pulse and the electric quantity value of the energy storage element reaches a certain value, follow-up work is carried out to ensure the high-stability work of the self-powered while-drilling communication relay node, and the while-drilling communication with small network delay, high instantaneity and good synchronism is realized. The problem that the normal operation of the whole system is affected due to the fact that the work of each communication relay node while drilling is unstable or the work is wrong when the electric quantity value of the energy storage element is low is avoided.
Further, the wireless receiving module is one of an electromagnetic wave signal receiving device and a magnetic coupling receiving device.
Further, the wireless transmitting module is one of an electromagnetic wave signal transmitting device and a magnetic coupling transmitting device.
Example 2:
the embodiment is an implementation manner of the present invention, and the present invention is described with reference to the accompanying drawings, fig. 3 is a transmission block diagram of data in a self-powered while-drilling communication system, and fig. 4 is a design structure diagram of a self-powered while-drilling communication relay node in the system:
And using an energy management algorithm to manufacture a self-powered while-drilling communication system, wherein a self-powered while-drilling communication relay node is deployed on each drill rod. During the drilling process, a large number of friction nano generators distributed on the drill rod work through collecting the abundant vibration energy of the drill rod to supply the communication relay node while drilling. The communication relay node while drilling receives underground information sent by the communication relay node while drilling on the previous drill rod at fixed time intervals, and wirelessly sends the information to the communication relay node while drilling on the next drill rod, underground data collected by the sensor can be timely transmitted to the ground control end from underground through the communication relay nodes while drilling distributed on each drill rod, and the ground control end can timely make judgment through the received information, so that the drilling process is perfected. Compared with the traditional communication system while drilling, the novel system has the advantages of simpler deployment, faster transmission speed, longer service life and capability of saving a large amount of energy.
To realize the functions, each drill rod is distributed with a self-power while-drilling communication relay node, and each self-power while-drilling communication relay node consists of smaller parts; the energy acquisition module of the self-powered while-drilling communication relay node is configured on a drill rod, the drill rod can generate abundant vibration energy in the drilling process, the types of vibration comprise torsional vibration, transverse vibration and longitudinal vibration, the energy acquisition module can acquire energy and generate electric energy, the electric energy is then stored in an electrolytic capacitor serving as an energy storage element through rectifying the energy into stable energy, the energy is supplied to the corresponding while-drilling communication relay node every other fixed time and when the energy is enough, a magnetic coupling receiving device receives a data signal transmitted by a previous relay node through a magnetic coupling receiving coil at one end of the drill rod, an MCU1 and an MCU2 respectively preprocess and further identify and process the data, and finally the magnetic coupling transmitting device transmits the processed data to a magnetic coupling receiving antenna of the next while-drilling communication relay node through a magnetic coupling transmitting coil at the other end of the drill rod. Because the communication relay node while drilling on each drill rod receives, identifies, processes and transmits information, and the receiving coil and the transmitting coil of the adjacent communication relay node while drilling are very close to each other, the self-powered communication system while drilling has the characteristic of strong anti-interference capability.
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps. Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (3)
1. The self-powered communication-while-drilling relay node is characterized in that the self-powered communication-while-drilling relay node utilizes collected vibration energy of a downhole drill rod and simultaneously transmits downhole information to realize communication-while-drilling with small network delay, high instantaneity and good synchronism, and comprises an energy supply system and the communication-while-drilling relay node; the energy supply system collects vibration energy of the underground drill rod to supply power for the communication relay node while drilling; the energy supply system comprises an energy conversion module and an energy management storage module; the energy conversion module collects vibration energy of the underground drill rod and converts the vibration energy into electric energy, and the electric energy is transmitted to the energy management storage module; the energy management storage module is used for storing and managing energy generated by the energy conversion module and then supplying power to the communication relay node while drilling at fixed time intervals;
The energy management storage module comprises an energy storage element which is an electrolytic capacitor, a voltage comparator and a timer; the while-drilling communication relay node acquires the electric quantity of the energy storage element, stores the electric quantity value of the energy storage element, and periodically sends the electric quantity value to a subsequent relay node to be further transmitted to a ground control end;
The while-drilling communication relay node comprises a wireless receiving module, a data processing module 1, a data processing module 2 and a wireless transmitting module; the energy conversion module is one or more of a friction nano generator and a piezoelectric nano generator; the wireless receiving module comprises a receiving coil and a circuit assembly for wireless receiving, and is used for receiving underground data transmitted by a previous communication relay node while drilling; the wireless transmitting module comprises a transmitting coil and a circuit assembly for wireless transmission, and is used for transmitting underground data to a subsequent communication while drilling relay node; the data processing module 1 performs identification and preprocessing on the received underground data;
The receiving coil and the transmitting coil are respectively positioned at two ends of the drill rod, and the receiving coil is coupled with the transmitting coil of the communication relay node while drilling on the previous drill rod and is used for wirelessly receiving the coupling signal; the transmitting coil is coupled with a receiving coil of a communication relay node while drilling on the subsequent drill rod and is used for wirelessly transmitting a coupling signal;
The data processing module 1, the data processing module 2, the circuit components for wireless transmission of the wireless transmission module and the circuit components for wireless reception of the wireless reception module are all intensively placed in a cavity on the drill rod wall near the midpoint of the drill rod or integrated on a circuit board, and are intensively supplied with energy by an energy supply system; when the timer of the communication relay node while drilling sends timing pulse, the voltage comparator compares the voltage value of the energy storage element, when the voltage value of the energy storage element is larger than or equal to V1, the data processing module 1 preprocesses the underground data received by the wireless receiving module, the preprocessing result is sent to the data processing module 2, and the data processing module 2 wakes up the wireless transmitting module of the corresponding communication relay node while drilling after further processing and transmits the processed data;
the wireless receiving module is one of a magnetic coupling receiving device and an electromagnetic wave signal receiving device; the wireless transmitting module is one of a magnetic coupling transmitting device and an electromagnetic wave signal transmitting device.
2. The communication-while-drilling relay node according to claim 1, wherein the data processing module 1 processes the downhole data received by the wireless receiving module specifically comprises: the data processing module recognizes and preprocesses the underground data received by the wireless receiving module, wakes up the data processing module 2, and transmits the data to the data processing module 2.
3. The communication-while-drilling relay node according to claim 1, wherein the data processing module 2 processes the received preprocessed data specifically: the data processing module 2 collects the electric quantity information of the energy storage element, wakes up the wireless transmitting module after further processing the received and preprocessed data and transmits the further processed data, and the wireless transmitting module wirelessly transmits the data to the next communication while drilling relay node after receiving the data.
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| CN112593864A (en) * | 2020-12-09 | 2021-04-02 | 电子科技大学 | Self-powered intelligent drill pipe system and underground data transmission method |
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| US8179278B2 (en) * | 2008-12-01 | 2012-05-15 | Schlumberger Technology Corporation | Downhole communication devices and methods of use |
| CN103306668B (en) * | 2013-05-11 | 2016-11-02 | 电子科技大学 | The EM-MWD transmission system of extension antenna underarm |
| CN105704251A (en) * | 2016-04-25 | 2016-06-22 | 南阳师范学院 | Mine WSN safety monitoring system based on wind-induced vibration piezoelectric energy self-energizing |
| CN107612112B (en) * | 2017-09-28 | 2020-01-14 | 中国矿业大学 | Vibration energy-captured wireless sensor network node for monitoring gas in mine |
| US10808504B2 (en) * | 2018-10-25 | 2020-10-20 | Saudi Arabian Oil Company | Self-winding power generating systems and methods for downhole environments |
| CN109209351A (en) * | 2018-10-29 | 2019-01-15 | 杭州中油智井装备科技有限公司 | One kind is based on signal measurement and wireless transmitting system under the self-powered rod-pumped well of piezoelectric fabric |
| US10844694B2 (en) * | 2018-11-28 | 2020-11-24 | Saudi Arabian Oil Company | Self-powered miniature mobile sensing device |
| CN111101933B (en) * | 2019-12-18 | 2021-06-25 | 中海石油(中国)有限公司湛江分公司 | Channel self-adaptive drilling communication relay nipple, drill string and frequency self-adaptive regulator |
| US11480018B2 (en) * | 2020-07-31 | 2022-10-25 | Saudi Arabian Oil Company | Self-powered active vibration and rotational speed sensors |
| CN114033361A (en) * | 2021-10-22 | 2022-02-11 | 中国石油大学(华东) | Near-bit multi-parameter underground measurement and control system while drilling |
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