A threaded and coupled connector with tapered threads having equivalent heights (same height on pin and box threads), negative load flanks, biased tapered thread forms with a torque shoulder formed by pin noses that abut at a central point within a coupling constructed from standard coupling stock. The connection design meets the internal/external pressure performance requirements of industry standards with capabilities equal to or exceeding those of "premium" connections, with a coupling constructed from thin walled coupling stock.
申请公布号
WO2006076194(A2)
申请公布日期
2006.07.20
申请号
WO2006US00226
申请日期
2006.01.05
申请人
GRANT PRIDECO, L.P.;DELANGE, RICHARD, W.;HEGLER, MATTHEW, ALLEN;BAILEY, ANDYLE, GREGORY