多功能超声成像测井仪设计  

Design of Multi-functional Ultrasonic Imaging Logging Tool

作　　者：孙志峰[1,2] 仇傲[1] 陈洪海[1] 

机构地区：[1]中海油田服务股份有限公司,北京通州101149 [2]海洋石油勘探国家工程实验室,北京通州101149

出　　处：《西南石油大学学报（自然科学版）》2014年第6期76-82,共7页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家重大专项(2011ZX05020–005);国家"863"计划(SQ2010AA0920229001)

摘　　要：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。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.

关 键 词：超声波反射 内壁成像 套损评价 水泥胶结 声波测井 

分 类 号：TE132[石油与天然气工程—油气勘探]