CAJ | 학술논문

基于超声脉冲反射法测量原理，设计了一种多功能超声成像测井仪器，并介绍了该仪器测量的具体实现方法。该仪器在裸眼井中采用成像测量模式可完成井眼内壁高分辨率成像测量；在套管井采用全波测量模式可同时完成套损检测及水泥胶结质量评价测量。应用该仪器在实际裸眼井及套管井进行了测试，实测资料表明其在裸眼井中可对井壁进行裂缝、孔洞、层理等地质构造分析；在套管井中可进行套管厚度成像、套管内外径成像及水泥声阻抗成像等评价。该仪器可对套管腐蚀及第I界面水泥胶结质量做定量评价。
기우초성맥충반사법측량원리，설계료일충다공능초성성상측정의기，병개소료해의기측량적구체실현방법。해의기재라안정중채용성상측량모식가완성정안내벽고분변솔성상측량；재투관정채용전파측량모식가동시완성투손검측급수니효결질량평개측량。응용해의기재실제라안정급투관정진행료측시，실측자료표명기재라안정중가대정벽진행렬봉、공동、층리등지질구조분석；재투관정중가진행투관후도성상、투관내외경성상급수니성조항성상등평개。해의기가대투관부식급제I계면수니효결질량주정량평개。
Based on the measurement principle of the ultrasonic impulse method,we designed a Multi-functional ultrasonic imaging logging tool,and explained how it works. It can conduct borehole wall imaging with the imaging mode of high resolution in open hole. It can also conduct casing inspection and cement bonding evaluation with the full wave mode in the cased hole. The proposed tool was tested in open hole and cased hole. Results shows that this tool can evaluate the geologic feature information,such as fracture,hole and bedding structure in open hole. The casing thickness imaging,inner and outer diameter imaging and cement impedance imaging can also be measured in the cased hole. This tool can provide quantitative evaluation of casing corrosion and cement bonding quality.