相控雷达成像测井仪器中收发天线系统设计  

Design of Transceiver Antenna System in Phased Radar Imaging logging Tool

作　　者：李国英 嵇成高 于刚刚 关浩 LI Guoying;JI Chenggao;YU Ganggang;GUAN Hao(Material Equipment Company,China National Logging Corporation,Tianjin 300280,China;Tianjin Branch,China National Logging Corporation,Tianjin 300280,China;Changqing Branch,China National Logging Corporation,Xi’an,Shaanxi 723507,China)

机构地区：[1]中国石油集团测井有限公司物资装备公司,天津300280 [2]中国石油集团测井有限公司天津分公司,天津300280 [3]中国石油集团测井有限公司长庆分公司,陕西西安723507

出　　处：《测井技术》2022年第6期696-700,706,共6页Well Logging Technology

摘　　要：复杂储层精细勘探需要了解多维几何空间更多的地质信息。相控雷达成像测井技术可以利用雷达反射波成像来展现井周较远范围内裂缝带的空间展布,可通过提取地层介电常数、电导率信息识别复杂油气层。通过分析超宽带雷达波的瞬态脉冲在不同地层、不同流体中的响应机理,确定相控雷达成像测井仪器的基本参数。应用仿真优化设计出一种含有全向偶极子发射天线和定向方位阵列接收天线的优化天线系统,实现径向探测深度8 m、方位分辨率120°。相控雷达成像测井技术的研发可为复杂储层油气藏勘探开发提供技术支持。Detailed exploration of complex reservoirs requires more information from multidimensional geometry.Phased radar imaging logging technology can show the spatial distribution of fracture zone in the far range around the well by using radar reflection wave imaging.The complex oil and gas layers can be identified by extracting the information of layer permittivity and conductivity.In this paper,the basic parameters of phased radar imaging logging instrument are determined by analyzing the response mechanism of ultra bandwidth(UWB)radar wave transient pulse in different layer and different fluids.An optimized antenna system with omnidirectional dipole transmitting antenna and directional azimuth array receiving antenna is designed by simulation optimization.The radial detection depth is 8 m and the azimuth resolution is 120°.Phased radar imaging logging technology can provide technical support for the exploration and development of complex reservoirs.

关 键 词：相控雷达 成像测井 仿真设计 介电常数 天线设计 

分 类 号：P631.84[天文地球—地质矿产勘探]