声电测井工具2.0的电磁兼容性分析及干扰屏蔽方法

IF 1.6 3区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Journal of Geophysics and Engineering Pub Date : 2023-02-22 DOI:10.1093/jge/gxad013

Hongzhi Chen, Jun-qiang Lu, X. Ju, Bai-yong Men, W. Qiao

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引用次数: 0

摘要

声波测井是油气勘探领域一种重要的储层渗透率评价方法。其成分复杂、声电信号微弱、易受电磁干扰等特点要求具有较高的电磁兼容性。本研究在系统分析了探测器的干扰特性后，发现电磁防护措施存在很大不足。提出了一种完全屏蔽发射声系统的方法。对其屏蔽效能进行了计算和测试。在测试中，屏蔽抑制效果不明显，反而使干扰增强了60 dB。对传导干扰进行了解释，建立了传导干扰仿真预测模型。仿真结果很好地解释了实验结果。根据模型提供的抑制测量，传导干扰被有效抑制，使发射声系统的屏蔽效果满足设计要求。

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Electromagnetic compatibility analysis and interference shielding method for AcoustoElectric Logging Tool 2.0

Acoustoelectric logging is an important reservoir permeability evaluation method in the field of oil and gas exploration. Its complex composition, weak acoustoelectric signals, vulnerability to Electro Magnetic Interference, and other characteristics require high Electro Magnetic Compatibility. In this study, after systematically analysing the interference characteristics of the detector, the electromagnetic protection measures are found to be largely inadequate. A complete shielding of the transmitting acoustic system was proposed. The shielding effectiveness was calculated and tested. In the test, the shielding suppression was ineffective, and the interference was enhanced by 60 dB instead. The explanation of conducted interference was given, and the conducted interference simulation prediction model was established. The simulation result explains the experimental result well. According to the suppression measurements provided by the model, the conducted interference was effectively suppressed, making the shielding effect of the transmitting acoustic system meet the design requirements.

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来源期刊

Journal of Geophysics and Engineering 工程技术-地球化学与地球物理

CiteScore

2.50

自引率

21.40%

发文量

审稿时长

4 months

期刊介绍： Journal of Geophysics and Engineering aims to promote research and developments in geophysics and related areas of engineering. It has a predominantly applied science and engineering focus, but solicits and accepts high-quality contributions in all earth-physics disciplines, including geodynamics, natural and controlled-source seismology, oil, gas and mineral exploration, petrophysics and reservoir geophysics. The journal covers those aspects of engineering that are closely related to geophysics, or on the targets and problems that geophysics addresses. Typically, this is engineering focused on the subsurface, particularly petroleum engineering, rock mechanics, geophysical software engineering, drilling technology, remote sensing, instrumentation and sensor design.