<p>A sleeve for an acoustic logging tool has a structure with a window section having fewer bars than a conventional sleeve separated by a slotted region with thin circumferential slots which are stress-relieved at the ends ("dumbbell" shaped). Steel receiver mounts are provided for hydrophone pressure sensors and this, together with the axially oriented hydrophones makes the tool less susceptible to interfering vibration.</p>
申请公布号
CA2330043(A1)
申请公布日期
1999.11.04
申请号
CA19982330043
申请日期
1998.04.28
申请人
SCHLUMBERGER CANADA LIMITED
发明人
SUGIYAMA, HITOSHI;MORRIS, CHARLES FRANKLIN;PABON, JAHIR A.;TASHIRO, HITOSHI;KATO, KAZUMASA;LESLIE, HAROLD DAVID III;HOYLE, DAVID CARLTON