发明名称 Diverter plugs for use in well bores and associated methods of use
摘要 Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs for achieving zonal isolation in a casing string in a well bore may comprise a mandrel having a first end and a second end; a compressible body attached to and surrounding a longitudinal portion of the mandrel; and a sealing nose attached to the first end of the mandrel. In certain embodiments, systems for achieving zonal isolation of a casing string in a well bore may comprise a diverter plug comprising a mandrel having a first end and a second end, a compressible body attached to and surrounding a longitudinal portion of the mandrel, and a sealing nose attached to the first end of the mandrel; and a landing collar sized to mate with a portion of the sealing nose of the diverter plug. Associated methods are also provided.
申请公布号 US2007095538(A1) 申请公布日期 2007.05.03
申请号 US20050263730 申请日期 2005.11.01
申请人 SZARKA DAVID D;GILBERT WILLIAM W;BURKHEAD DAVID W;ROGERS HENRY E;BRAUN NICHOLAS C;COOPER TODD D;JOHNSON JOHN 发明人 SZARKA DAVID D.;GILBERT WILLIAM W.;BURKHEAD DAVID W.;ROGERS HENRY E.;BRAUN NICHOLAS C.;COOPER TODD D.;JOHNSON JOHN
分类号 E21B43/26;E21B33/12 主分类号 E21B43/26
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