Title :
Acoustic field in a borehole within a horizontally layered formation
Author :
Wang, Xiuming ; Zhang, Hallan ; Ying, Chongfu
Author_Institution :
Inst. of Acoust., Acad. Sinica, Beijing, China
Abstract :
The acoustic field in a cylindrical borehole embedded in a horizontally layered infinite fluid medium is studied. The system exhibits both continuous and discrete modes, the orthogonality and completeness of which are proven. The relevant weights associated with the two kinds of modes are determined by solving a set of integral equations deduced from the boundary conditions at the layer interface. It as shown that the results are effective up to frequencies prevailing in a typical well logging environment. The theoretical results are verified by scaled laboratory experiments
Keywords :
acoustic applications; acoustic field; boundary integral equations; geophysical prospecting; geophysical techniques; iterative methods; oil technology; Gauss-Seidel iteration method; acoustic field; boundary conditions; continuous modes; cylindrical borehole; discrete modes; horizontally layered infinite fluid medium; integral equations; oil wells; orthogonality; scaled laboratory experiments; well logging environment; Art; Equations; Mirrors;
Conference_Titel :
Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2940-6
DOI :
10.1109/ULTSYM.1995.495757
