A semi-rigid floating spring type centralizer for use in deviated, highly deviated or horizontal well bores, the centralizer comprising a cylindrical tubular housing having a plurality of floating centralizer springs retained thereon.
申请公布号
US4875524(A)
申请公布日期
1989.10.24
申请号
US19880250900
申请日期
1988.09.29
申请人
HALLIBURTON COMPANY
发明人
BRADLEY, BILLIE J.;GIROUX, RICHARD L.;JOYCE, ALLEN T.
