Casing make-up and running tool adapted for fluid and cement control
摘要
The apparatus of the present invention provides a top drive supported tool for making up and running casing strings into a borehole. The tool comprises a fill-up and circulation assembly and a launcher assembly that is adapted to cooperate with a connectable cement wiper plug assembly for launching wiper plugs that control cement placement in the annulus between a casing string and a borehole containing the casing string. The tool of the present invention shortens or eliminates delays in well operations, thereby improving integrity of cement liners formed by placing cement slurry in a targeted interval.
申请公布号
US8096357(B2)
申请公布日期
2012.01.17
申请号
US20100971209
申请日期
2010.12.17
申请人
LATIOLAIS, JR. BURNEY J.;LUTGRING KEITH THOMAS;HAWKINS, III SAMUEL P.;FRANK'S INTERNATIONAL, INC.
发明人
LATIOLAIS, JR. BURNEY J.;LUTGRING KEITH THOMAS;HAWKINS, III SAMUEL P.