Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1996-05-13
1998-05-19
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
73597, G01S 1500, G01N 2900
Patent
active
057544956
ABSTRACT:
A method and apparatus for determining the length of a fluid conduit using acoustics is disclosed. The inventive method for determining the length L.sub.FC of an unblocked section of fluid conduit, the unblocked section of the fluid conduit having a proximal and distal end, comprises the steps of:
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patent: 5195059 (1993-03-01), Hiroshi et al.
patent: 5432752 (1995-07-01), Ito et al.
Halliburton Energy Service,s Inc.
Herman Paul I.
Imwalle William M.
Lobo Ian J.
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