摘要
现代声波测井记录的全波列信息非常丰富,其中纵波反射波或转换波能反映井外的高角度裂缝或层界面,而低频斯通利波反射波则对与井眼相交的低角度裂缝较敏感。正确识别各类反射波信息,并与常规纵波、横波、斯通利波等信息结合,可以更有效地评价井周各种不同变化特征的裂缝或层界面。探讨了不同类型裂缝反射波的传播响应特点和信号处理方法,以及它们在裂缝评价中的应用方法。
Modern acoustic logging data contain plenty of information on full wave train, of which reflected P-wave or transformed wave responds high angle fracture around the well or bed boundary, while the reflected wave of low frequency Stoneley is more sensitive to low angle fracture intersected with the bore hole. The information on the reflected waves can be integrated with conventional P-wave, S-wave and Stoneley for effectively identifying and evaluating various kinds of fracture and bed boundary a-round the well. This paper discusses propagation responds and the signal processing methods of different types of reflected waves, and their applications to fracture evaluation.
出处
《测井技术》
CAS
CSCD
2003年第3期198-202,共5页
Well Logging Technology
基金
中国石油天然气集团公司石油科技中青年创新基金的研究内容
