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Measured radiation patterns of the scale model dipole tool

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dc.contributor.author Lu, Rongrong
dc.contributor.author Rao, Rama V. N.
dc.contributor.author Toksoz, M. Nafi
dc.contributor.other Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.date.accessioned 2011-12-21T22:58:58Z
dc.date.available 2011-12-21T22:58:58Z
dc.date.issued 2003
dc.identifier.uri http://hdl.handle.net/1721.1/67864
dc.description.abstract The sound field of finite dipole acoustic transducers in a steel tool was investigated and their horizontal by measuring their vertical radiation patterns in water at two different frequencies. Measurements were also made with the tool in scale models representative of sonic logging conditions in the field. A Lucite borehole model was used to represent a soft formation and an Austin Chalk borehole model was used to represent a hard formation. The presence of the tool as a finite baffle for the transducer, introduces differences between the vertical and horizontal radiation patterns. In contrast to the vertical pattern, the horizontal radiation pattern has a narrower main lobe with relatively larger side lobes. The angular location of the side lobes as seen in the water measurements, do not change much in the borehole. en_US
dc.description.sponsorship Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.description.sponsorship Massachusetts Institute of Technology. Borehole Acoustics and Logging Consortium en_US
dc.publisher Massachusetts Institute of Technology. Earth Resources Laboratory en_US
dc.relation.ispartofseries Earth Resources Laboratory Industry Consortia Annual Report;2003-04
dc.title Measured radiation patterns of the scale model dipole tool en_US
dc.type Technical Report en_US
dc.contributor.mitauthor Lu, Rongrong
dc.contributor.mitauthor Rao, Rama V. N.
dc.contributor.mitauthor Toksoz, M. Nafi
dspace.orderedauthors Lu, Rongrong; Rao, Rama V. N.; Toksoz, M. Nafi en_US


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