State Key Laboratory of Petroleum Resources and Prospecting, Key Laboratory of Earth Prospecting and Information Technology, China University of Petroleum, Beijing 102249, China.
China Electronic Technology Group Corporation Twentieth Research Institute, Xi'an 710068, China.
Sensors (Basel). 2021 Dec 20;21(24):8489. doi: 10.3390/s21248489.
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.
为了提高储层评价的准确性，设计了一种新型的地震电测井仪器。该设计的工具包括发明的声波探头结构阵列复合。该工具包括几个模块，包括信号激励模块、数据采集模块、相控发射模块、阻抗匹配模块和主系统控制电路，它们通过高速工具总线相互连接，形成分布式架构。UC/OS-II 用于实时系统控制。在构建地震电测井探测器的实验测量系统原型后，在实验室中对其性能进行了验证。得到的结果表明，多通道接收波形幅度与基准谱之间的一致性超过 97%。仪器的二进制相控线阵发射模块可以实现 0°至 20°的偏转角和定向辐射。最后，进行了现场测试，以验证工具在井下条件下的性能。该测试的结果证明了所开发的地震电测井工具的有效性。
