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Keywords = sonde complex

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19 pages, 12740 KB  
Article
Design of a New Seismoelectric Logging Instrument
by Liangchen Zhang, Xiaodong Ju, Junqiang Lu, Baiyong Men and Weiliang He
Sensors 2021, 21(24), 8489; https://doi.org/10.3390/s21248489 - 20 Dec 2021
Cited by 1 | Viewed by 2914
Abstract
To increase the accuracy of reservoir evaluation, a new type of seismoelectric logging instrument was designed. The designed tool comprises the invented sonde-structured array complex. The tool includes several modules, including a signal excitation module, data acquisition module, phased array transmitting module, impedance [...] Read more.
To increase the accuracy of reservoir evaluation, a new type of seismoelectric logging instrument was designed. The designed tool comprises the invented sonde-structured array complex. The tool includes several modules, including a signal excitation module, data acquisition module, phased array transmitting module, impedance matching module and a main system control circuit, which are interconnected through high-speed tool bus to form a distributed architecture. UC/OS-II was used for the real-time system control. After constructing the experimental measurement system prototype of the seismoelectric logging detector, its performance was verified in the laboratory. The obtained results showed that the consistency between the multi-channel received waveform amplitude and benchmark spectrum was more than 97%. The binary phased linear array transmitting module of the instrument can realize 0° to 20° deflection and directional radiation. In the end, a field test was conducted to verify the tool’s performance in downhole conditions. The results of this test proved the effectiveness of the developed seismoelectric logging tool. Full article
(This article belongs to the Special Issue Sensors in Electronic Measurement Systems)
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