| 多极子阵列声波测井仪的换能器激励方法 |
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| 引用本文： | 卢俊强,鞠晓东,成向阳.多极子阵列声波测井仪的换能器激励方法[J].高电压技术,2009,35(2):324-328. |
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| 作者姓名： | 卢俊强 鞠晓东 成向阳 |
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| 作者单位： | 卢俊强,鞠晓东,LU Jun-qiang,JU Xiao-dong(中国石油大学油气资源与探测国家重点实验室,北京,102249);成向阳,CHENG Xiang-yang(中国石油大学石油工程学院,东营,257061)
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金，高等学校博士学科点专项科研基金 |
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| 摘 要： | 多极子阵列声波测井仪工作于单极、偶极和四极等模式时,发射声系所需要的激励脉冲参数各不相同,要求发射激励电路控制灵活,易于实现。为此,研制了采用复杂可编程逻辑器件作为发射逻辑控制器,由供电电路、高压储能电路、驱动电路、高压激励电路和脉冲变压器构成的高压脉冲激励源。通过实验对各种工作参数进行了优化,在高压储能电路能量确定的情况下,单极和四极触发脉冲宽度为30μs,偶极触发脉冲宽度为160μs,接收换能器可接收到信噪比高、波形特征清楚的信号波形。加温测试和现场测试表明,基于该激励源的声波测井仪完全能够满足石油井下环境的应用要求。
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| 关 键 词： | 石油测井 声波测井仪 激励方法 换能器 复杂可编程逻辑器件 测试 |
Transducer Firing Method for Multi-pole Array Acoustic Logging Tool |
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| LU Jun-qiang,JU Xiao-dong,CHENG Xiang-yang.Transducer Firing Method for Multi-pole Array Acoustic Logging Tool[J].High Voltage Engineering,2009,35(2):324-328. |
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| Authors: | LU Jun-qiang JU Xiao-dong CHENG Xiang-yang |
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| Affiliation: | 1.State Key Laboratory of Petroleum Resource and Prospecting;China University of Petroleum;Beijing 102249;China;2.College of Petroleum Engineering;Dongying 257061;China |
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| Abstract: | Multi-pole array acoustic logging tool includes monopole mode operation,dipole mode operation and quadrupole mode operation.The transmitter mandrel consists of monopole transducer,dipole transducer and quadrupole transducer,and all of the transducers are excited by high voltage firing pulses from transmitter electronics.Parameters of firing pulses are various in different modes,which require that transmitter circuits can be easy to control and realize.Complex programmable logic device acts as firing control... |
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