A ball sealer for use in flow equalization during fluid injection into oil wells is described which has a layer of thermosetting filament wrapped around its core. After curing, the wrapping layer provides the major part of the ball's strength.
申请公布号
US4505334(A)
申请公布日期
1985.03.19
申请号
US19830529951
申请日期
1983.09.06
申请人
OIL STATES INDUSTRIES, INC.
发明人
DONER, AUGUST K.;BRADY, LEWIS L.;ALVARADO, JESSE T.
