Physical Simulation of Ultrasonic Imaging Logging Response

被引:2
|
作者
Lu, Junqiang [1 ,2 ]
Han, Jiyong [1 ,2 ]
Wu, Jinping [3 ]
Che, Xiaohua [1 ,2 ]
Qiao, Wenxiao [1 ,2 ]
Wang, Jiale [1 ,2 ]
Chen, Xu [1 ,2 ]
机构
[1] China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China
[2] Key Lab Earth Prospecting & Informat Technol, Beijing 102249, Peoples R China
[3] SINOPEC Engn Technol Res Inst, Beijing 102200, Peoples R China
基金
中国国家自然科学基金;
关键词
ultrasonic imaging; fracture response; physical simulation; amplitude;
D O I
10.3390/s22239422
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Ultrasonic imaging logging can visually identify the location, shape, dip angle and orientation of fractures and holes. The method has not been effectively applied in the field; one of the prime reasons is that the results of physical simulation experiments are insufficient. The physical simulation of fracture and hole response in the laboratory can provide a reference for the identification and evaluation of the underground geological structure. In this work, ultrasonic scanning experiments are conducted on a grooved sandstone plate and a simulated borehole and the influence of different fractures and holes on ultrasonic pulse echo is studied. Experimental results show that the combination of ultrasonic echo amplitude imaging and arrival time imaging can be used to identify the fracture location, width, depth and orientation, along with accurately calculating the fracture dip angle. The evaluated fracture parameters are similar to those in the physical simulation model. The identification accuracy of the ultrasonic measurement is related to the diameter of the radiation beam of the ultrasonic transducer. A single fracture with width larger than or equal to the radiation beam diameter of the ultrasonic transducer and multiple fractures with spacing longer than or equal to the radiation beam diameter can be effectively identified.
引用
收藏
页数:16
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