摘要
针对超声成像测井中受纵向测井速度与超声换能器横向扫描分辨率的限制,造成测井图像分辨率无法满足实际需求的问题,初步研究了双线性插值算法用于超声成像测井数据重采样的处理方法。建立了算法处理流程,并开展了室内模型与野外实际测井数据的处理对比。结果表明该方法可有效提高超声成像测井图像分辨率及成像质量,能够为铀矿勘查、石油及煤炭等领域中井下原位识别裂隙、破碎带的实际需要提供技术支撑。
In order to solve the problem that the resolution of logging image can not meet the actual needs due to the logging speed fluctuation(in vertical direction)and the limit of the transverse scanning resolution of ultrasonic transducer during the course of logging,the bilinear interpolation algorithm was proposed to resample the ultrasonic imaging logging data,and the processing procedure was studied in detail.By applying the algorithm to both model pit data and field data,the results verified that this method can effectively improve the resolution and the imaging quality of ultrasonic imaging logging,and can provide technical support for in-situ identification of fractures and fracture zones in the borehole of uranium,oil and coal exploration.
作者
李宏伟
祝海江
冯延强
LI Hongwei;ZHU Haijiang;FENG Yanqiang(College of Information Science&Technology,Beijing University of Chemical Technology,Beijing 100029,China;Beijing Research Institute of Uranium Geology,Beijing 100029,China)
出处
《世界核地质科学》
CAS
2020年第4期291-295,共5页
World Nuclear Geoscience
基金
中央高校基本科研业务费专项基金(编号:XK1802-4)
中核集团青年英才项目(编号:物QNYC2019-1)联合资助
关键词
双线性插值算法
超声成像测井
重采样处理
bilinear interpolation algorithm
ultrasonic imaging logging
resampling processing
